/**
 * iRootly - Main Stylesheets
 * Modern tech knowledge platform design system
 */

/* =============================================================================
   CSS Variables / Design Tokens
   ============================================================================= */

:root {
    /* Brand Colors */
    --color-primary: #6366F1;
    --color-primary-hover: #4F46E5;
    --color-primary-light: #E0E7FF;
    --color-primary-dark: #4338CA;
    --color-primary-50: #EEF2FF;

    --color-secondary: #8B5CF6;
    --color-secondary-hover: #7C3AED;

    /* Status Colors */
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-warning: #F59E0B;
    --color-warning-light: #FEF3C7;
    --color-danger: #EF4444;
    --color-danger-light: #FEE2E2;
    --color-info: #3B82F6;
    --color-info-light: #DBEAFE;

    /* Neutrals */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    --color-gray-950: #030712;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);

    /* Semantic Colors - Light Theme */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --bg-inverse: #111827;

    --text-primary: #111827;
    --text-secondary: #4B5563;
    --text-tertiary: #6B7280;
    --text-inverse: #FFFFFF;
    --text-link: #6366F1;

    --border-color: #E5E7EB;
    --border-color-hover: #D1D5DB;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    --shadow-card-hover: 0 16px 40px -8px rgba(99, 102, 241, 0.12), 0 8px 16px -4px rgba(0, 0, 0, 0.06);

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    --letter-spacing-tight: -0.025em;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;

    /* Spacing (4px base) */
    --spacing-0: 0;
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-notification: 800;

    /* Layout */
    --navbar-height: 64px;
    --sidebar-width: 280px;
    --container-max-width: 1280px;
    --content-max-width: 800px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-tertiary: #1C2128;
    --bg-inverse: #F0F6FF;

    --text-primary: #E6EDF3;
    --text-secondary: #8B949E;
    --text-tertiary: #6E7681;
    --text-inverse: #0D1117;

    --border-color: #21262D;
    --border-color-hover: #30363D;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    --shadow-glow: 0 0 0 3px rgba(99, 102, 241, 0.35);
    --shadow-card-hover: 0 16px 40px -8px rgba(99, 102, 241, 0.2), 0 8px 16px -4px rgba(0, 0, 0, 0.3);
}

/* =============================================================================
   CSS Reset & Base Styles
   ============================================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* RTL Support */
[dir="rtl"] body {
    font-family: 'Segoe UI', Tahoma, 'Geeza Pro', 'Noto Sans Arabic', var(--font-family);
}

a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

img,
video,
svg {
    max-width: 100%;
    height: auto;
    display: block;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

/* Focus Styles */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Selection */
::selection {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

[data-theme="dark"] ::selection {
    background-color: rgba(99, 102, 241, 0.3);
    color: #C7D2FE;
}

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-3) var(--spacing-6);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
    font-weight: var(--font-weight-medium);
}

.skip-link:focus {
    top: var(--spacing-4);
}

/* =============================================================================
   Reading Progress Bar
   ============================================================================= */

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: calc(var(--z-fixed) + 1);
    transition: width 50ms linear;
    width: 0%;
}

/* =============================================================================
   Layout
   ============================================================================= */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1280px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

.main-content {
    min-height: calc(100dvh - var(--navbar-height) - 300px);
    padding-top: var(--navbar-height);
}

/* =============================================================================
   Typography
   ============================================================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    letter-spacing: var(--letter-spacing-tight);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-4);
    color: var(--text-secondary);
}

.text-xs {
    font-size: var(--font-size-xs);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-base {
    font-size: var(--font-size-base);
}

.text-lg {
    font-size: var(--font-size-lg);
}

.text-xl {
    font-size: var(--font-size-xl);
}

.text-muted {
    color: var(--text-tertiary);
}

.text-primary {
    color: var(--color-primary);
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-danger {
    color: var(--color-danger);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1.5;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:active:not(:disabled) {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    box-shadow: 0 1px 2px rgba(99, 102, 241, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35), 0 2px 6px rgba(99, 102, 241, 0.2);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--border-color-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-secondary);
}

.btn-danger {
    background: var(--color-danger);
    color: var(--color-white);
}

.btn-danger:hover:not(:disabled) {
    background: #DC2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-icon {
    padding: var(--spacing-2);
    border-radius: var(--radius-lg);
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    padding: 0;
    font-size: inherit;
}

.btn-link:hover {
    text-decoration: underline;
}

/* =============================================================================
   Forms
   ============================================================================= */

.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

.form-input:hover,
.form-select:hover {
    border-color: var(--border-color-hover);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-textarea:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.form-input.error {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.form-hint {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.form-check-input {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    accent-color: var(--color-primary);
}

.form-check-input:checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.form-check-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
}

/* =============================================================================
   Navbar
   ============================================================================= */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    backdrop-filter: blur(12px) saturate(180%);
    transition: box-shadow var(--transition-base), background var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .navbar {
    background: rgba(13, 17, 23, 0.88);
    border-bottom-color: var(--border-color);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
    .navbar-container {
        padding: 0 var(--spacing-6);
    }
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    letter-spacing: var(--letter-spacing-tight);
}

.navbar-brand:hover {
    color: var(--text-primary);
}

.navbar-logo {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.navbar-brand:hover .navbar-logo {
    transform: rotate(-3deg) scale(1.05);
}

.navbar-brand-text {
    display: none;
}

@media (min-width: 640px) {
    .navbar-brand-text {
        display: block;
    }
}

/* Navigation Links */
.navbar-nav {
    display: none;
}

@media (min-width: 1024px) {
    .navbar-nav {
        display: block;
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-50);
}

[data-theme="dark"] .nav-link.active {
    background: rgba(99, 102, 241, 0.12);
}

.dropdown-arrow {
    transition: transform var(--transition-fast);
}

.nav-item.has-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Mega Menu */
.mega-menu {
    position: absolute;
    top: calc(100% + var(--spacing-2));
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    width: 600px;
    max-width: calc(100vw - 2rem);
    padding: var(--spacing-5);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.nav-item.has-dropdown:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-5);
}

.mega-menu-category {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.mega-menu-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    padding: var(--spacing-2) var(--spacing-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    font-size: var(--font-size-sm);
}

.mega-menu-title:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.category-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--category-color, var(--color-primary));
    flex-shrink: 0;
}

[data-theme="dark"] .category-icon {
    background: var(--bg-tertiary);
}

.mega-menu-links {
    display: flex;
    flex-direction: column;
    padding-left: calc(32px + var(--spacing-2));
}

[dir="rtl"] .mega-menu-links {
    padding-left: 0;
    padding-right: calc(32px + var(--spacing-2));
}

.mega-menu-links a {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.mega-menu-links a:hover {
    color: var(--color-primary);
    background: var(--bg-secondary);
}

/* Navbar Actions */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.navbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.navbar-btn:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

/* DateTime Display */
.navbar-datetime {
    display: none;
    flex-direction: column;
    align-items: flex-end;
    padding: 0 var(--spacing-3);
    font-size: var(--font-size-xs);
    line-height: 1.3;
}

@media (min-width: 1024px) {
    .navbar-datetime {
        display: flex;
    }
}

.datetime-date {
    color: var(--text-secondary);
}

.datetime-time {
    font-weight: var(--font-weight-semibold);
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
}

/* Language Switcher */
.lang-flag {
    font-size: 1.25rem;
}

.lang-name {
    font-size: var(--font-size-sm);
}

/* Theme Toggle */
.theme-icon-light,
.theme-icon-dark {
    display: none;
}

[data-theme="light"] .theme-icon-light {
    display: block;
}

[data-theme="dark"] .theme-icon-dark {
    display: block;
}

/* User Menu */
.navbar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.navbar-user:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.user-avatar-lg {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.navbar-user .user-name {
    display: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

@media (min-width: 768px) {
    .navbar-user .user-name {
        display: block;
    }
}

/* Notification Badge */
.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    line-height: 18px;
    text-align: center;
    color: var(--color-white);
    background: var(--color-danger);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
}

@media (min-width: 1024px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.mobile-menu-toggle .close-icon {
    display: none;
}

.mobile-menu-toggle.active .menu-icon {
    display: none;
}

.mobile-menu-toggle.active .close-icon {
    display: block;
}

/* =============================================================================
   Dropdowns
   ============================================================================= */

.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    margin-top: var(--spacing-2);
    padding: var(--spacing-2);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

[data-theme="dark"] .dropdown-menu {
    background: var(--bg-secondary);
}

.dropdown-menu-end {
    left: auto;
    right: 0;
}

.dropdown.active .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.dropdown-divider {
    height: 1px;
    margin: var(--spacing-2) 0;
    background: var(--border-color);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    text-align: left;
    cursor: pointer;
}

.dropdown-item:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

[data-theme="dark"] .dropdown-item:hover {
    background: var(--bg-tertiary);
}

.dropdown-item.active {
    color: var(--color-primary);
    background: var(--color-primary-50);
}

[data-theme="dark"] .dropdown-item.active {
    background: rgba(99, 102, 241, 0.15);
}

.dropdown-item.text-danger {
    color: var(--color-danger);
}

.dropdown-item.text-danger:hover {
    background: var(--color-danger-light);
}

[data-theme="dark"] .dropdown-item.text-danger:hover {
    background: rgba(239, 68, 68, 0.15);
}

.dropdown-footer {
    padding: var(--spacing-2) var(--spacing-3);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-2);
}

.dropdown-footer a {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
}

/* User Info in Dropdown */
.dropdown-header.user-info {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
}

.dropdown-header.user-info .user-name {
    font-weight: var(--font-weight-semibold);
}

.dropdown-header.user-info .user-email {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    color: var(--text-tertiary);
}

/* Notifications Dropdown */
.notifications-dropdown {
    width: 360px;
    max-height: 480px;
    overflow-y: auto;
}

.notifications-list {
    max-height: 320px;
    overflow-y: auto;
}

.dropdown-item-empty {
    padding: var(--spacing-8) var(--spacing-4);
    text-align: center;
    color: var(--text-tertiary);
}

/* =============================================================================
   Search Overlay
   ============================================================================= */

.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-modal);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-overlay-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-4);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
}

.search-overlay.active .search-overlay-content {
    transform: translateY(0);
}

.search-form {
    max-width: 600px;
    margin: 0 auto;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: border-color var(--transition-fast);
}

.search-input-wrapper:focus-within {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.search-input-wrapper svg {
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--font-size-lg);
    outline: none;
    color: var(--text-primary);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-close {
    padding: var(--spacing-1);
    color: var(--text-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.search-close:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.search-suggestions {
    margin-top: var(--spacing-4);
}

/* =============================================================================
   Mobile Navigation
   ============================================================================= */

.mobile-nav {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: var(--z-fixed);
    overflow-y: auto;
}

[dir="rtl"] .mobile-nav {
    transform: translateX(100%);
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-content {
    padding: var(--spacing-4);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.mobile-nav-link.active {
    background: var(--color-primary-50);
    color: var(--color-primary);
}

[data-theme="dark"] .mobile-nav-link.active {
    background: rgba(99, 102, 241, 0.12);
}

.mobile-nav-divider {
    height: 1px;
    margin: var(--spacing-4) 0;
    background: var(--border-color);
}

.mobile-nav-label {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--text-tertiary);
}

/* =============================================================================
   Footer
   ============================================================================= */

.footer {
    margin-top: var(--spacing-16);
    padding: var(--spacing-16) 0 var(--spacing-8);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr repeat(4, 1fr);
    }
}

.footer-brand {
    grid-column: 1 / -1;
}

@media (min-width: 1024px) {
    .footer-brand {
        grid-column: 1;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    letter-spacing: var(--letter-spacing-tight);
}

.footer-logo:hover {
    color: var(--text-primary);
}

.footer-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
    max-width: 300px;
    line-height: var(--line-height-relaxed);
}

.footer-social {
    display: flex;
    gap: var(--spacing-2);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-50);
    border-color: var(--color-primary-light);
    transform: translateY(-1px);
}

[data-theme="dark"] .social-link:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* Newsletter */
.footer-newsletter-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3);
    line-height: var(--line-height-relaxed);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.newsletter-input-group {
    display: flex;
    gap: var(--spacing-2);
}

.newsletter-input-group input {
    flex: 1;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.newsletter-input-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.newsletter-input-group .btn {
    padding: var(--spacing-2) var(--spacing-3);
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

@media (min-width: 640px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-copyright,
.footer-made-with {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin: 0;
}

.footer-made-with .heart {
    display: inline-block;
    animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

/* =============================================================================
   Scroll to Top Button
   ============================================================================= */

.scroll-to-top {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

[dir="rtl"] .scroll-to-top {
    right: auto;
    left: var(--spacing-6);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

/* =============================================================================
   Notifications (Toast)
   ============================================================================= */

.notification-container {
    position: fixed;
    top: calc(var(--navbar-height) + var(--spacing-4));
    right: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    z-index: var(--z-notification);
    pointer-events: none;
    max-width: 420px;
}

[dir="rtl"] .notification-container {
    right: auto;
    left: var(--spacing-4);
}

.notification {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    min-width: 320px;
    max-width: 420px;
    padding: var(--spacing-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    pointer-events: auto;
    animation: slideInNotif var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

[dir="rtl"] .notification {
    animation-name: slideInNotifRtl;
}

@keyframes slideInNotif {
    from {
        opacity: 0;
        transform: translateX(calc(100% + var(--spacing-4)));
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInNotifRtl {
    from {
        opacity: 0;
        transform: translateX(calc(-100% - var(--spacing-4)));
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification.removing {
    animation: slideOutNotif var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

[dir="rtl"] .notification.removing {
    animation-name: slideOutNotifRtl;
}

@keyframes slideOutNotif {
    to {
        opacity: 0;
        transform: translateX(calc(100% + var(--spacing-4)));
        max-height: 0;
        margin: 0;
        padding: 0;
    }
}

@keyframes slideOutNotifRtl {
    to {
        opacity: 0;
        transform: translateX(calc(-100% - var(--spacing-4)));
    }
}

.notification-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
    font-size: var(--font-size-sm);
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: var(--line-height-normal);
}

.notification-close {
    flex-shrink: 0;
    padding: var(--spacing-1);
    color: var(--text-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.notification-close:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.notification-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--bg-tertiary);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    overflow: hidden;
}

.notification-progress-bar {
    height: 100%;
    background: var(--color-primary);
    animation: progress linear forwards;
}

@keyframes progress {
    from {
        width: 100%;
    }

    to {
        width: 0%;
    }
}

/* Notification Types */
.notification.success {
    border-left: 3px solid var(--color-success);
}

.notification.success .notification-icon {
    color: var(--color-success);
}

.notification.success .notification-progress-bar {
    background: var(--color-success);
}

.notification.error {
    border-left: 3px solid var(--color-danger);
}

.notification.error .notification-icon {
    color: var(--color-danger);
}

.notification.error .notification-progress-bar {
    background: var(--color-danger);
}

.notification.warning {
    border-left: 3px solid var(--color-warning);
}

.notification.warning .notification-icon {
    color: var(--color-warning);
}

.notification.warning .notification-progress-bar {
    background: var(--color-warning);
}

.notification.info {
    border-left: 3px solid var(--color-info);
}

.notification.info .notification-icon {
    color: var(--color-info);
}

.notification.info .notification-progress-bar {
    background: var(--color-info);
}

[dir="rtl"] .notification.success,
[dir="rtl"] .notification.error,
[dir="rtl"] .notification.warning,
[dir="rtl"] .notification.info {
    border-left: none;
    border-right: 3px solid;
}

/* =============================================================================
   Confirm Dialog
   ============================================================================= */

.confirm-dialog-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.55);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-modal);
}

.confirm-dialog-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.confirm-dialog {
    width: 100%;
    max-width: 420px;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-color);
    transform: scale(0.95) translateY(8px);
    transition: transform var(--transition-base);
}

.confirm-dialog-backdrop.active .confirm-dialog {
    transform: scale(1) translateY(0);
}

.confirm-dialog-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-6) var(--spacing-6) 0;
}

.confirm-dialog-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.confirm-dialog-icon.warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.confirm-dialog-icon.danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.confirm-dialog-icon.info {
    background: var(--color-info-light);
    color: var(--color-info);
}

[data-theme="dark"] .confirm-dialog-icon.warning {
    background: rgba(245, 158, 11, 0.15);
}

[data-theme="dark"] .confirm-dialog-icon.danger {
    background: rgba(239, 68, 68, 0.15);
}

[data-theme="dark"] .confirm-dialog-icon.info {
    background: rgba(59, 130, 246, 0.15);
}

.confirm-dialog-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.confirm-dialog-body {
    padding: var(--spacing-4) var(--spacing-6);
}

.confirm-dialog-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: var(--line-height-relaxed);
}

.confirm-dialog-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-6) var(--spacing-6);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-2);
}

/* =============================================================================
   Cards
   ============================================================================= */

.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
}

.card-image {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.06);
}

/* Card image placeholder with animated gradient */
.card-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-image-placeholder::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.08) 50%, transparent 100%);
    animation: shimmerPlaceholder 2.5s ease-in-out infinite;
}

@keyframes shimmerPlaceholder {

    0%,
    100% {
        opacity: 0;
    }

    50% {
        opacity: 1;
    }
}

.card-badge {
    position: absolute;
    top: var(--spacing-3);
    left: var(--spacing-3);
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    background: var(--category-color, var(--color-primary));
    border-radius: var(--radius-md);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    letter-spacing: 0.01em;
}

[dir="rtl"] .card-badge {
    left: auto;
    right: var(--spacing-3);
}

.card-body {
    padding: var(--spacing-5);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: inherit;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
}

.card-title a {
    color: inherit;
    transition: color var(--transition-fast);
}

.card-title a:hover {
    color: var(--color-primary);
}

.card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: inherit;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: var(--line-height-relaxed);
}

.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.card-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.card-author img {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
}

.card-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.card-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

/* =============================================================================
   Article Page Styles
   ============================================================================= */

.article-header {
    padding: var(--spacing-8) 0 var(--spacing-6);
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    flex-wrap: wrap;
}

.article-breadcrumb a {
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.article-breadcrumb a:hover {
    color: var(--color-primary);
}

.article-breadcrumb span {
    opacity: 0.5;
}

.article-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-5);
    letter-spacing: var(--letter-spacing-tight);
    line-height: 1.15;
}

@media (max-width: 640px) {
    .article-title {
        font-size: var(--font-size-2xl);
    }
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
}

.article-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.article-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    border: 2px solid var(--border-color);
}

.article-author-info {
    display: flex;
    flex-direction: column;
}

.article-author-name {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.article-date {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.article-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.article-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.article-type-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    background: color-mix(in srgb, var(--type-color, #6366F1) 12%, transparent);
    color: var(--type-color, #6366F1);
}

[data-theme="dark"] .article-type-badge {
    background: color-mix(in srgb, var(--type-color, #6366F1) 18%, transparent);
}

/* Article Content */
.article-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

.article-content h2 {
    margin-top: var(--spacing-12);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-2xl);
}

.article-content h3 {
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-3);
    font-size: var(--font-size-xl);
}

.article-content h4 {
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-2);
}

.article-content p {
    margin-bottom: var(--spacing-6);
    color: var(--text-primary);
}

.article-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-color: rgba(99, 102, 241, 0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--transition-fast);
}

.article-content a:hover {
    text-decoration-color: var(--color-primary);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-6);
    padding-left: var(--spacing-6);
}

[dir="rtl"] .article-content ul,
[dir="rtl"] .article-content ol {
    padding-left: 0;
    padding-right: var(--spacing-6);
}

.article-content li {
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.article-content ul li {
    list-style-type: disc;
}

.article-content ol li {
    list-style-type: decimal;
}

.article-content blockquote {
    margin: var(--spacing-8) 0;
    padding: var(--spacing-4) var(--spacing-6);
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-50);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-style: italic;
    color: var(--text-secondary);
}

[data-theme="dark"] .article-content blockquote {
    background: rgba(99, 102, 241, 0.08);
}

[dir="rtl"] .article-content blockquote {
    border-left: none;
    border-right: 4px solid var(--color-primary);
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

/* Code Blocks */
.code-block {
    margin: var(--spacing-6) 0;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: #0D1117;
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .code-block {
    background: #010409;
    border: 1px solid var(--border-color);
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) var(--spacing-4);
    background: #161B22;
    border-bottom: 1px solid #21262D;
}

.code-language {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: #7D8590;
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    font-family: var(--font-family-mono);
}

.code-copy-btn {
    padding: var(--spacing-1) var(--spacing-2);
    color: #7D8590;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: var(--font-size-xs);
}

.code-copy-btn:hover {
    color: #E6EDF3;
    background: rgba(255, 255, 255, 0.08);
}

.code-block pre {
    margin: 0;
    padding: var(--spacing-4);
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    color: #E6EDF3;
}

/* Inline Code */
.inline-code {
    padding: 0.15em 0.45em;
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .inline-code {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.2);
}

/* Tables */
.table-wrapper {
    margin: var(--spacing-6) 0;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xs);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
}

.article-content th,
.article-content td {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
}

[dir="rtl"] .article-content th,
[dir="rtl"] .article-content td {
    text-align: right;
}

.article-content th {
    font-weight: var(--font-weight-semibold);
    background: var(--bg-secondary);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--text-tertiary);
}

.article-content tr:last-child td {
    border-bottom: none;
}

.article-content tr:hover td {
    background: var(--bg-secondary);
}

/* Images */
.article-image {
    margin: var(--spacing-8) 0;
}

.article-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
}

.article-image figcaption {
    margin-top: var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    text-align: center;
    font-style: italic;
}

/* Table of Contents */
.table-of-contents {
    margin: var(--spacing-8) 0;
    padding: var(--spacing-5) var(--spacing-6);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.table-of-contents h4 {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-4);
}

.table-of-contents ul {
    margin: 0;
    padding: 0;
}

.table-of-contents li {
    list-style: none;
    margin-bottom: var(--spacing-1);
}

.table-of-contents a {
    display: block;
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.table-of-contents a:hover {
    color: var(--color-primary);
    background: var(--color-primary-50);
}

[data-theme="dark"] .table-of-contents a:hover {
    background: rgba(99, 102, 241, 0.1);
}

/* =============================================================================
   Page Sections (layout component for home, explore, etc.)
   ============================================================================= */

.section {
    padding: var(--spacing-16) 0;
}

.section+.section {
    padding-top: 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    flex-wrap: wrap;
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    letter-spacing: var(--letter-spacing-tight);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin: 0;
}

.section-title svg {
    color: var(--color-primary);
}

.section-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.section-link svg {
    transition: transform var(--transition-fast);
}

.section-link:hover {
    color: var(--color-primary-hover);
    gap: var(--spacing-2);
}

.section-link:hover svg {
    transform: translateX(3px);
}

[dir="rtl"] .section-link:hover svg {
    transform: translateX(-3px);
}

/* =============================================================================
   Hero Section
   ============================================================================= */

.hero {
    padding: var(--spacing-20) 0;
    background: linear-gradient(160deg, #F8FAFF 0%, #F0EDFF 40%, #F8F5FF 100%);
    overflow: hidden;
    position: relative;
}

[data-theme="dark"] .hero {
    background: linear-gradient(160deg, #0D1117 0%, #0D0F1A 50%, #0D1117 100%);
}

/* Subtle decorative dots for hero */
.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: center;
    position: relative;
    z-index: 1;
}

@media (min-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-content {
    text-align: center;
}

@media (min-width: 1024px) {
    .hero-content {
        text-align: left;
    }

    [dir="rtl"] .hero-content {
        text-align: right;
    }
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-5);
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
}

@media (min-width: 1280px) {
    .hero-title {
        font-size: var(--font-size-6xl);
    }
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-8);
    max-width: 520px;
    line-height: var(--line-height-relaxed);
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 1024px) {
    .hero-description {
        margin-left: 0;
    }

    [dir="rtl"] .hero-description {
        margin-left: auto;
        margin-right: 0;
    }
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    justify-content: center;
    margin-bottom: var(--spacing-10);
}

@media (min-width: 1024px) {
    .hero-actions {
        justify-content: flex-start;
    }
}

.hero-stats {
    display: flex;
    gap: var(--spacing-8);
    justify-content: center;
}

@media (min-width: 1024px) {
    .hero-stats {
        justify-content: flex-start;
    }
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.hero-stat-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: var(--letter-spacing-tight);
}

.hero-stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
}

.hero-illustration {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Code window in hero */
.hero-code-window {
    width: 100%;
    max-width: 480px;
    background: #0D1117;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 0 32px 64px -16px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.code-window-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: #161B22;
    border-bottom: 1px solid #21262D;
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.code-dot.red {
    background: #FF5F56;
}

.code-dot.yellow {
    background: #FFBD2E;
}

.code-dot.green {
    background: #27C93F;
}

.code-window-content {
    margin: 0;
    padding: var(--spacing-5);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    overflow: hidden;
}

.code-window-content code {
    font-family: inherit;
}

.code-keyword {
    color: #FF7B72;
}

.code-var {
    color: #79C0FF;
}

.code-prop {
    color: #E3B341;
}

.code-string {
    color: #A5D6FF;
}

.code-comment {
    color: #8B949E;
}

.code-number {
    color: #F78166;
}

/* =============================================================================
   Categories Grid
   ============================================================================= */

.categories-section {
    padding: var(--spacing-16) 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
}

@media (min-width: 480px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-4);
    }
}

@media (min-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-5) var(--spacing-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--category-color, var(--color-primary));
    transform: scaleX(0);
    transition: transform var(--transition-base);
    transform-origin: center;
}

.category-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card .category-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    background: color-mix(in srgb, var(--category-color, #6366F1) 12%, transparent);
    color: var(--category-color, #6366F1);
    transition: transform var(--transition-base);
}

[data-theme="dark"] .category-card .category-icon {
    background: color-mix(in srgb, var(--category-color, #6366F1) 18%, transparent);
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(-4deg);
}

.category-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
    line-height: var(--line-height-tight);
}

.category-description {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: inherit;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: var(--line-height-relaxed);
}

/* =============================================================================
   Articles Grid
   ============================================================================= */

.articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-5);
}

@media (min-width: 640px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Featured grid: first card spans full width on desktop */
.featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-5);
}

@media (min-width: 640px) {
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .featured-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .featured-grid .card-featured {
        grid-column: span 2;
    }
}

/* Featured card special treatment */
.card-featured {
    position: relative;
}

@media (min-width: 1024px) {
    .card-featured .card-image {
        aspect-ratio: 2 / 1;
    }

    .card-featured .card-title {
        font-size: var(--font-size-xl);
    }

    .card-featured .card-excerpt {
        -webkit-line-clamp: 2;
        line-clamp: inherit;
    }
}

.card-featured .card-badge {
    font-size: var(--font-size-xs);
    padding: var(--spacing-1) var(--spacing-3);
}

/* =============================================================================
   Empty States
   ============================================================================= */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    padding: var(--spacing-16) var(--spacing-8);
    text-align: center;
}

.empty-state-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
    border: 1px solid var(--border-color);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
}

.empty-state p {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    max-width: 360px;
    margin: 0;
    line-height: var(--line-height-relaxed);
}

/* =============================================================================
   CTA / Newsletter Section
   ============================================================================= */

.cta-section {
    padding: var(--spacing-16) 0;
}

.cta-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    align-items: center;
    padding: var(--spacing-12) var(--spacing-8);
    background: linear-gradient(135deg, #6366F1 0%, #7C3AED 100%);
    border-radius: var(--radius-3xl);
    position: relative;
    overflow: hidden;
}

@media (min-width: 768px) {
    .cta-card {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-12);
    }
}

/* Decorative background for CTA */
.cta-card::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    margin-bottom: var(--spacing-3);
    letter-spacing: var(--letter-spacing-tight);
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--font-size-3xl);
    }
}

.cta-description {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: var(--line-height-relaxed);
}

.cta-form {
    position: relative;
    z-index: 1;
}

.cta-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

@media (min-width: 400px) {
    .cta-input-group {
        flex-direction: row;
    }
}

.cta-input-group input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    background: rgba(255, 255, 255, 0.15);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    color: var(--color-white);
    transition: all var(--transition-fast);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.cta-input-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.cta-input-group input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.cta-input-group .btn {
    background: var(--color-white);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-3) var(--spacing-5);
    white-space: nowrap;
}

.cta-input-group .btn:hover {
    background: var(--color-gray-100);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* =============================================================================
   Tags & Badges
   ============================================================================= */

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    text-decoration: none;
    cursor: default;
}

.tag:hover,
a.tag:hover {
    color: var(--color-primary);
    background: var(--color-primary-50);
    border-color: var(--color-primary-light);
    cursor: pointer;
}

[data-theme="dark"] a.tag:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.3);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15em 0.6em;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    line-height: 1.5;
}

.badge-primary {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

[data-theme="dark"] .badge-primary {
    background: rgba(99, 102, 241, 0.15);
    color: #A5B4FC;
}

[data-theme="dark"] .badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
}

[data-theme="dark"] .badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #FCD34D;
}

[data-theme="dark"] .badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #FCA5A5;
}

/* =============================================================================
   Skeleton Loading
   ============================================================================= */

.skeleton {
    background: linear-gradient(90deg,
            var(--bg-secondary) 25%,
            var(--bg-tertiary) 50%,
            var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.skeleton-card .skeleton-image {
    aspect-ratio: 16 / 9;
    border-radius: 0;
}

.skeleton-card .skeleton-body {
    padding: var(--spacing-5);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.skeleton-line {
    height: 1em;
    border-radius: var(--radius-sm);
}

.skeleton-line-sm {
    height: 0.75em;
}

.skeleton-line-lg {
    height: 1.5em;
}

.skeleton-w-full {
    width: 100%;
}

.skeleton-w-3-4 {
    width: 75%;
}

.skeleton-w-1-2 {
    width: 50%;
}

.skeleton-w-1-3 {
    width: 33%;
}

/* =============================================================================
   Scroll-Triggered Animations
   ============================================================================= */

[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate].in-view {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="fade"] {
    transform: none;
}

[data-animate="slide-left"] {
    transform: translateX(-24px);
}

[data-animate="slide-left"].in-view {
    transform: translateX(0);
}

[data-animate="scale"] {
    transform: scale(0.95);
}

[data-animate="scale"].in-view {
    transform: scale(1);
}

/* Stagger children animation */
[data-animate-children]>* {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate-children].in-view>* {
    opacity: 1;
    transform: translateY(0);
}

[data-animate-children].in-view>*:nth-child(1) {
    transition-delay: 0ms;
}

[data-animate-children].in-view>*:nth-child(2) {
    transition-delay: 60ms;
}

[data-animate-children].in-view>*:nth-child(3) {
    transition-delay: 120ms;
}

[data-animate-children].in-view>*:nth-child(4) {
    transition-delay: 180ms;
}

[data-animate-children].in-view>*:nth-child(5) {
    transition-delay: 240ms;
}

[data-animate-children].in-view>*:nth-child(6) {
    transition-delay: 300ms;
}

[data-animate-children].in-view>*:nth-child(7) {
    transition-delay: 360ms;
}

[data-animate-children].in-view>*:nth-child(8) {
    transition-delay: 420ms;
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    [data-animate],
    [data-animate-children]>* {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* =============================================================================
   Alert / Banner Components
   ============================================================================= */

.alert {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-4);
    border: 1px solid transparent;
}

.alert svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.alert p {
    margin: 0;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.alert-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border-color: rgba(16, 185, 129, 0.2);
}

.alert-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border-color: rgba(245, 158, 11, 0.2);
}

.alert-info {
    background: var(--color-info-light);
    color: var(--color-info);
    border-color: rgba(59, 130, 246, 0.2);
}

[data-theme="dark"] .alert-danger {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .alert-success {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.2);
}

[data-theme="dark"] .alert-warning {
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.2);
}

[data-theme="dark"] .alert-info {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.2);
}

/* =============================================================================
   Dividers / Separators
   ============================================================================= */

.divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-6) 0;
}

.divider-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin: var(--spacing-6) 0;
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

.divider-text::before,
.divider-text::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

/* =============================================================================
   Pagination
   ============================================================================= */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-1);
    flex-wrap: wrap;
    margin-top: var(--spacing-8);
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}

.page-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary-light);
    background: var(--color-primary-50);
}

.page-btn.active {
    background: var(--gradient-primary);
    color: var(--color-white);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* =============================================================================
   Utilities
   ============================================================================= */

.hidden {
    display: none !important;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

.flex {
    display: flex;
}

.inline-flex {
    display: inline-flex;
}

.grid {
    display: grid;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-1 {
    flex: 1;
}

.gap-1 {
    gap: var(--spacing-1);
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-3 {
    gap: var(--spacing-3);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

.gap-8 {
    gap: var(--spacing-8);
}

.m-0 {
    margin: 0;
}

.mt-4 {
    margin-top: var(--spacing-4);
}

.mt-8 {
    margin-top: var(--spacing-8);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-8 {
    margin-bottom: var(--spacing-8);
}

.p-0 {
    padding: 0;
}

.p-4 {
    padding: var(--spacing-4);
}

.p-6 {
    padding: var(--spacing-6);
}

.py-4 {
    padding-top: var(--spacing-4);
    padding-bottom: var(--spacing-4);
}

.py-8 {
    padding-top: var(--spacing-8);
    padding-bottom: var(--spacing-8);
}

.px-4 {
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
}

.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.max-w-md {
    max-width: 28rem;
}

.max-w-lg {
    max-width: 32rem;
}

.max-w-xl {
    max-width: 36rem;
}

.rounded {
    border-radius: var(--radius-md);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.rounded-xl {
    border-radius: var(--radius-xl);
}

.rounded-full {
    border-radius: var(--radius-full);
}

.shadow {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Responsive Grid */
.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (min-width: 640px) {
    .sm\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}
/* Global UX: reduce tap delay on mobile */
a, button, input, select, textarea, [role="button"] {
    touch-action: manipulation;
}

/* Disabled state consistency */
button:disabled, .btn:disabled, input:disabled, select:disabled, textarea:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* =============================================================================
   Cookie Notice (essential cookies only)
   ============================================================================= */
.cookie-notice {
    position: fixed;
    left: 50%;
    bottom: var(--spacing-4);
    transform: translateX(-50%);
    z-index: 1000;
    width: calc(100% - var(--spacing-8));
    max-width: 640px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-4) var(--spacing-5);
}
.cookie-notice[hidden] { display: none; }
.cookie-notice-inner {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}
.cookie-notice-text { flex: 1 1 320px; }
.cookie-notice-text strong { display: block; margin-bottom: var(--spacing-1); }
.cookie-notice-text p { margin: 0; font-size: var(--font-size-sm); color: var(--text-secondary); line-height: 1.6; }
.cookie-notice-text a { color: var(--color-primary); }
.cookie-notice .btn-sm { flex-shrink: 0; }