/**
 * Header 2025 Premium - Ultimes Griots
 *
 * Modern header with:
 * - Dark mode support
 * - Glassmorphism advanced
 * - Smooth animations
 * - Performance optimized
 * - Accessibility compliant (WCAG 2.1 AA)
 *
 * Inspired by: Apple, Stripe, Airbnb
 * African cultural identity preserved
 *
 * @package madara
 * @version 4.0.0 - Premium Refonte Totale 2025
 * @author Ultimes Griots Design Team
 */

/* ============================================================================
   CSS CUSTOM PROPERTIES (CSS VARIABLES) - DARK MODE SUPPORT
   ============================================================================ */

:root {
    /* ===== COLORS - LIGHT MODE (Default) ===== */

    /* Brand colors - African Gold */
    --color-gold-primary: #D4AF37;
    --color-gold-light: #F4D03F;
    --color-gold-dark: #B8941E;
    --color-gold-vibrant: #FFD700;

    /* African Earth Tones */
    --color-earth-clay: #8B4513;
    --color-earth-terracotta: #C1440E;
    --color-earth-sand: #DEB887;
    --color-earth-mahogany: #2d1b1b;

    /* Neutral colors */
    --color-neutral-darkest: #1a1a1a;
    --color-neutral-dark: #2d2d2d;
    --color-neutral-medium: #666666;
    --color-neutral-light: #e5e5e5;
    --color-neutral-lightest: #f5f5f5;
    --color-white: #ffffff;
    --color-black: #000000;

    /* Semantic colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* Background & Surface colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f5f5f5;
    --color-bg-tertiary: #e5e5e5;
    --color-surface: rgba(255, 255, 255, 0.8);
    --color-surface-elevated: rgba(255, 255, 255, 0.95);

    /* Text colors */
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-text-inverse: #ffffff;

    /* Border colors */
    --color-border-light: rgba(0, 0, 0, 0.08);
    --color-border-medium: rgba(0, 0, 0, 0.15);
    --color-border-dark: rgba(0, 0, 0, 0.25);

    /* Overlay colors */
    --color-overlay-light: rgba(0, 0, 0, 0.4);
    --color-overlay-medium: rgba(0, 0, 0, 0.6);
    --color-overlay-dark: rgba(0, 0, 0, 0.8);

    /* ===== DIMENSIONS ===== */
    --header-height: 90px;
    --header-height-scrolled: 70px;
    --header-height-mobile: 64px;
    --header-z-index: 1000;

    --pattern-bar-height: 4px;
    --scroll-progress-height: 3px;

    /* Logo sizes */
    --logo-height: 56px;
    --logo-height-scrolled: 48px;
    --logo-height-mobile: 40px;

    /* ===== SPACING SYSTEM (8px base) ===== */
    --space-0: 0;
    --space-1: 0.25rem;    /* 4px */
    --space-2: 0.5rem;     /* 8px */
    --space-3: 0.75rem;    /* 12px */
    --space-4: 1rem;       /* 16px */
    --space-5: 1.25rem;    /* 20px */
    --space-6: 1.5rem;     /* 24px */
    --space-8: 2rem;       /* 32px */
    --space-10: 2.5rem;    /* 40px */
    --space-12: 3rem;      /* 48px */
    --space-16: 4rem;      /* 64px */
    --space-20: 5rem;      /* 80px */
    --space-24: 6rem;      /* 96px */

    /* ===== TYPOGRAPHY SCALE ===== */
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-md: 1.125rem;     /* 18px */
    --font-size-lg: 1.25rem;      /* 20px */
    --font-size-xl: 1.5rem;       /* 24px */
    --font-size-2xl: 1.875rem;    /* 30px */
    --font-size-3xl: 2.25rem;     /* 36px */
    --font-size-4xl: 3rem;        /* 48px */
    --font-size-5xl: 3.75rem;     /* 60px */

    /* Font weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Line heights */
    --line-height-tight: 1.2;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;

    /* Letter spacing */
    --letter-spacing-tighter: -0.05em;
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
    --letter-spacing-widest: 0.1em;

    /* ===== BORDER RADIUS ===== */
    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-3xl: 32px;
    --radius-full: 9999px;

    /* ===== SHADOWS ===== */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);

    /* Gold glow shadows */
    --shadow-glow-sm: 0 0 10px rgba(212, 175, 55, 0.3);
    --shadow-glow-md: 0 0 20px rgba(212, 175, 55, 0.4);
    --shadow-glow-lg: 0 0 30px rgba(212, 175, 55, 0.5);

    /* ===== TRANSITIONS & ANIMATIONS ===== */
    --transition-instant: 50ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Easing curves */
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-elastic: cubic-bezier(0.175, 0.885, 0.32, 1.275);

    /* ===== GLASSMORPHISM ===== */
    --glass-blur: 20px;
    --glass-blur-intense: 30px;
    --glass-saturation: 180%;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-bg-elevated: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 0.3);

    /* ===== Z-INDEX SCALE ===== */
    --z-base: 1;
    --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;
    --z-max: 9999;
}

/* ============================================================================
   DARK MODE VARIABLES
   ============================================================================ */

[data-theme="dark"] {
    /* Brand colors - adjusted for dark mode */
    --color-gold-primary: #F4D03F;
    --color-gold-light: #FFD700;
    --color-gold-dark: #D4AF37;

    /* Backgrounds */
    --color-bg-primary: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #2d2d2d;
    --color-surface: rgba(26, 26, 26, 0.8);
    --color-surface-elevated: rgba(45, 45, 45, 0.95);

    /* Text */
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #b3b3b3;
    --color-text-tertiary: #808080;
    --color-text-inverse: #1a1a1a;

    /* Borders */
    --color-border-light: rgba(255, 255, 255, 0.08);
    --color-border-medium: rgba(255, 255, 255, 0.15);
    --color-border-dark: rgba(255, 255, 255, 0.25);

    /* Overlays */
    --color-overlay-light: rgba(0, 0, 0, 0.6);
    --color-overlay-medium: rgba(0, 0, 0, 0.8);
    --color-overlay-dark: rgba(0, 0, 0, 0.95);

    /* Glassmorphism dark mode */
    --glass-bg: rgba(26, 26, 26, 0.7);
    --glass-bg-elevated: rgba(45, 45, 45, 0.9);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* Shadows (lighter in dark mode) */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.6), 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.7), 0 10px 10px rgba(0, 0, 0, 0.5);

    /* Gold glow more vibrant in dark */
    --shadow-glow-sm: 0 0 15px rgba(244, 208, 63, 0.4);
    --shadow-glow-md: 0 0 25px rgba(244, 208, 63, 0.5);
    --shadow-glow-lg: 0 0 35px rgba(244, 208, 63, 0.6);
}

/* Smooth transition when switching themes */
html {
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */

/* Box sizing */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Remove no-js class for progressive enhancement */
html.no-js .site-header-2025 {
    position: static;
}

html.js .site-header-2025 {
    position: fixed;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Accessibility: 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;
    }
}

/* ============================================================================
   HEADER BASE STRUCTURE
   ============================================================================ */

.site-header-2025 {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturation));
    box-shadow: var(--shadow-sm);
    z-index: var(--header-z-index);
    transition: all var(--transition-normal);
    will-change: transform, background-color, box-shadow;
}

/* Header scrolled state */
.site-header-2025.scrolled {
    background: var(--glass-bg-elevated);
    box-shadow: var(--shadow-md);
}

.site-header-2025.scrolled .header-container {
    height: var(--header-height-scrolled);
}

.site-header-2025.scrolled .site-logo {
    height: var(--logo-height-scrolled);
}

/* Ensure body has padding for fixed header */
body {
    padding-top: var(--header-height);
    transition: padding-top var(--transition-normal);
}

body.header-scrolled {
    padding-top: var(--header-height-scrolled);
}

/* ============================================================================
   SKIP LINK - WCAG 2.1 ACCESSIBILITY
   ============================================================================ */

.skip-link {
    position: absolute;
    top: -100px;
    left: var(--space-4);
    background: var(--color-gold-primary);
    color: var(--color-white);
    padding: var(--space-3) var(--space-6);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    z-index: var(--z-max);
    transition: top var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.skip-link:focus {
    top: var(--space-4);
    outline: 3px solid var(--color-gold-dark);
    outline-offset: 3px;
}

/* ============================================================================
   CULTURAL PATTERN BAR (African Identity)
   ============================================================================ */

.header-pattern-bar {
    height: var(--pattern-bar-height);
    width: 100%;
    overflow: hidden;
}

.pattern-svg {
    width: 100%;
    height: 100%;
    display: block;
    animation: patternFlow 20s linear infinite;
}

@keyframes patternFlow {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-40px);
    }
}

/* ============================================================================
   HEADER CONTAINER
   ============================================================================ */

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    height: var(--header-height);
    transition: height var(--transition-normal);
}

/* ============================================================================
   LOGO / BRANDING
   ============================================================================ */

.site-branding {
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.site-logo-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    position: relative;
    transition: transform var(--transition-normal);
}

.site-logo-link:hover {
    transform: scale(1.02);
}

.site-logo-link:focus-visible {
    outline: 2px solid var(--color-gold-primary);
    outline-offset: 6px;
    border-radius: var(--radius-sm);
}

.site-logo {
    display: block;
    height: var(--logo-height);
    width: auto;
    transition: all var(--transition-normal);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* Logo glow effect on hover */
.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--color-gold-primary) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
    filter: blur(20px);
}

.site-logo-link:hover .logo-glow {
    opacity: 0.3;
}

/* ============================================================================
   MAIN NAVIGATION
   ============================================================================ */

.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
    max-width: 800px;
}

.nav-menu-2025 {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-2);
    align-items: center;
}

.nav-menu-2025 .menu-item {
    position: relative;
}

.nav-menu-2025 > .menu-item > a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

/* Hover state */
.nav-menu-2025 > .menu-item > a:hover,
.nav-menu-2025 > .menu-item > a:focus-visible {
    color: var(--color-gold-primary);
    background: rgba(212, 175, 55, 0.08);
}

/* Current/Active page */
.nav-menu-2025 .current-menu-item > a,
.nav-menu-2025 .current-menu-ancestor > a {
    color: var(--color-gold-primary);
    font-weight: var(--font-weight-semibold);
}

/* Animated underline effect */
.nav-menu-2025 > .menu-item > a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: calc(100% - 2rem);
    height: 2px;
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-gold-light));
    border-radius: var(--radius-full);
    transition: transform var(--transition-normal) var(--ease-out);
    transform-origin: center;
}

.nav-menu-2025 > .menu-item > a:hover::after,
.nav-menu-2025 > .menu-item > a:focus-visible::after,
.nav-menu-2025 .current-menu-item > a::after {
    transform: translateX(-50%) scaleX(1);
}

/* Focus styles for accessibility */
.nav-menu-2025 a:focus-visible {
    outline: 2px solid var(--color-gold-primary);
    outline-offset: 2px;
}

/* ============================================================================
   DROPDOWN / SUB-MENUS
   ============================================================================ */

.nav-menu-2025 .sub-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    min-width: 240px;
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(var(--glass-blur-intense)) saturate(var(--glass-saturation));
    -webkit-backdrop-filter: blur(var(--glass-blur-intense)) saturate(var(--glass-saturation));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--glass-border);
    margin: 0;
    padding: var(--space-2);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
}

.nav-menu-2025 .menu-item-has-children:hover > .sub-menu,
.nav-menu-2025 .menu-item-has-children:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu-2025 .sub-menu .menu-item {
    margin: 0;
}

.nav-menu-2025 .sub-menu a {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-menu-2025 .sub-menu a:hover,
.nav-menu-2025 .sub-menu a:focus-visible {
    background: rgba(212, 175, 55, 0.12);
    color: var(--color-gold-primary);
    padding-left: calc(var(--space-4) + 6px);
}

/* ============================================================================
   HEADER ACTIONS (Right side)
   ============================================================================ */

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/* Base button styles for icons */
.search-trigger,
.cart-toggle,
.account-toggle,
.dark-mode-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: var(--space-3);
    color: var(--color-text-primary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.search-trigger:hover,
.search-trigger:focus-visible,
.cart-toggle:hover,
.cart-toggle:focus-visible,
.account-toggle:hover,
.account-toggle:focus-visible,
.dark-mode-toggle:hover,
.dark-mode-toggle:focus-visible {
    background: rgba(212, 175, 55, 0.12);
    color: var(--color-gold-primary);
    transform: scale(1.05);
}

.search-trigger:focus-visible,
.cart-toggle:focus-visible,
.account-toggle:focus-visible,
.dark-mode-toggle:focus-visible {
    outline: 2px solid var(--color-gold-primary);
    outline-offset: 2px;
}

.search-trigger svg,
.cart-toggle svg,
.account-toggle svg {
    width: 20px;
    height: 20px;
    stroke-width: 2px;
}

/* ============================================================================
   INTEGRATED SEARCH BAR
   ============================================================================ */

.header-search-integrated {
    position: relative;
}

.search-expandable {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    width: 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    overflow: hidden;
}

.search-expandable.active {
    width: 320px;
    opacity: 1;
    visibility: visible;
}

.search-form-inline {
    position: relative;
}

.search-input-inline {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-lg);
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(var(--glass-blur));
    color: var(--color-text-primary);
    outline: none;
    transition: all var(--transition-normal);
    font-family: inherit;
}

.search-input-inline:focus {
    border-color: var(--color-gold-primary);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

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

/* Search suggestions dropdown */
.search-suggestions {
    position: absolute;
    top: calc(100% + var(--space-1));
    left: 0;
    right: 0;
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(var(--glass-blur-intense));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    padding: var(--space-2);
    max-height: 400px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
}

.search-suggestions.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ============================================================================
   DARK MODE TOGGLE
   ============================================================================ */

.dark-mode-toggle-wrapper {
    position: relative;
}

.dark-mode-toggle {
    width: 44px;
    height: 44px;
    padding: var(--space-2);
}

.sun-icon,
.moon-icon {
    width: 20px;
    height: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all var(--transition-normal);
}

/* Light mode: show sun, hide moon */
[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
}

[data-theme="light"] .moon-icon {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(90deg) scale(0);
}

/* Dark mode: show moon, hide sun */
[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(-90deg) scale(0);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
}

.toggle-track {
    display: none; /* Hidden for icon-only version */
}

/* Tooltip (optional) */
.dark-mode-tooltip {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    background: var(--color-neutral-darkest);
    color: var(--color-white);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-tooltip);
}

.dark-mode-toggle:hover + .dark-mode-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

[data-theme="light"] .tooltip-text-dark {
    display: none;
}

[data-theme="dark"] .tooltip-text-light {
    display: none;
}

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

/* ============================================================================
   CART BADGE
   ============================================================================ */

.cart-count {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--color-gold-primary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    padding: 2px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    box-shadow: var(--shadow-sm);
    animation: badgePop 0.3s var(--ease-bounce);
}

@keyframes badgePop {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* ============================================================================
   SCROLL PROGRESS BAR
   ============================================================================ */

.scroll-progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: var(--scroll-progress-height);
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-gold-light));
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 0.1s linear;
    z-index: 2;
}

/* ============================================================================
   MOBILE MENU TOGGLE (Hamburger)
   ============================================================================ */

.mobile-menu-toggle {
    display: none; /* Hidden on desktop, shown on mobile */
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-text-primary);
}

.hamburger-box {
    width: 24px;
    height: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
    content: '';
    width: 100%;
    height: 3px;
    background: currentColor;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    transform-origin: center;
}

.hamburger-inner::before {
    position: absolute;
    top: 0;
}

.hamburger-inner::after {
    position: absolute;
    bottom: 0;
}

/* Animated hamburger to X */
.mobile-menu-toggle[aria-expanded="true"] .hamburger-inner {
    background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-inner::before {
    transform: translateY(7.5px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-inner::after {
    transform: translateY(-7.5px) rotate(-45deg);
}

.menu-text {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

/* Tablet */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 var(--space-5);
    }

    .main-navigation {
        max-width: 600px;
    }

    .nav-menu-2025 {
        gap: var(--space-1);
    }

    .nav-menu-2025 > .menu-item > a {
        font-size: var(--font-size-sm);
        padding: var(--space-2) var(--space-3);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: var(--header-height-mobile);
        --header-height-scrolled: var(--header-height-mobile);
    }

    .header-container {
        height: var(--header-height-mobile);
        padding: 0 var(--space-4);
        gap: var(--space-4);
    }

    .site-logo {
        height: var(--logo-height-mobile);
    }

    .site-header-2025.scrolled .site-logo {
        height: var(--logo-height-mobile);
    }

    /* Hide desktop navigation */
    .main-navigation {
        display: none;
    }

    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: flex;
    }

    /* Adjust header actions */
    .header-actions {
        gap: var(--space-2);
    }

    /* Hide integrated search on mobile */
    .header-search-integrated .search-trigger {
        /* Keep button but hide expandable */
    }

    .search-expandable.active {
        width: calc(100vw - 2rem);
        right: calc(-1 * var(--space-4));
    }
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
    .site-header-2025,
    .header-actions,
    .mobile-menu-toggle {
        display: none !important;
    }

    body {
        padding-top: 0 !important;
    }
}

/* ============================================================================
   PERFORMANCE OPTIMIZATIONS
   ============================================================================ */

/* GPU acceleration for smooth animations */
.site-header-2025,
.nav-menu-2025 a,
.search-trigger,
.cart-toggle,
.account-toggle,
.dark-mode-toggle,
.site-logo {
    will-change: transform;
}

/* Remove will-change after animation */
.site-header-2025.loaded {
    will-change: auto;
}

/* ============================================================================
   SEARCH OVERLAY PREMIUM - FULL SCREEN
   ============================================================================ */

.search-overlay-premium {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: calc(var(--header-z-index) + 100);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--space-8) var(--space-4);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.search-overlay-premium[aria-hidden="false"] {
    pointer-events: auto;
    opacity: 1;
    visibility: visible;
}

.search-overlay-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-overlay-dark);
    backdrop-filter: blur(var(--glass-blur-intense));
    -webkit-backdrop-filter: blur(var(--glass-blur-intense));
    z-index: 1;
}

.search-overlay-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 800px;
    padding-top: calc(var(--header-height) + var(--space-8));
    transform: translateY(-20px);
    transition: transform var(--transition-normal);
}

.search-overlay-premium[aria-hidden="false"] .search-overlay-content {
    transform: translateY(0);
}

.search-overlay-close {
    position: absolute;
    top: var(--space-8);
    right: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
    color: var(--color-white);
    transition: all var(--transition-fast);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    z-index: 3;
}

.search-overlay-close:hover,
.search-overlay-close:focus {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg) scale(1.1);
    box-shadow: var(--shadow-glow-sm);
}

.search-overlay-close svg {
    width: 24px;
    height: 24px;
    display: block;
    stroke-width: 2.5;
}

.search-overlay-inner {
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(var(--glass-blur-intense));
    -webkit-backdrop-filter: blur(var(--glass-blur-intense));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-2xl);
}

.search-overlay-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-8);
    text-align: center;
    line-height: var(--line-height-tight);
}

.search-form-premium {
    margin-bottom: var(--space-10);
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon-large {
    position: absolute;
    left: var(--space-5);
    width: 32px;
    height: 32px;
    color: var(--color-gold-primary);
    pointer-events: none;
    z-index: 1;
}

.search-input-premium {
    width: 100%;
    padding: var(--space-6) var(--space-6) var(--space-6) calc(var(--space-5) + 32px + var(--space-4));
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    color: var(--color-text-primary);
    outline: none;
    transition: all var(--transition-normal);
    font-family: inherit;
}

.search-input-premium:focus {
    border-color: var(--color-gold-primary);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.15), var(--shadow-lg);
}

.search-input-premium::placeholder {
    color: var(--color-text-tertiary);
    font-weight: var(--font-weight-normal);
}

/* Popular Searches Section */
.popular-searches {
    margin-top: var(--space-8);
}

.popular-searches h3 {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-4);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.popular-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.popular-tags .tag {
    display: inline-block;
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.popular-tags .tag:hover,
.popular-tags .tag:focus {
    background: var(--color-gold-primary);
    border-color: var(--color-gold-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Search Results Live */
.search-results-live {
    margin-top: var(--space-8);
    max-height: 400px;
    overflow-y: auto;
    border-top: 1px solid var(--color-border-light);
    padding-top: var(--space-6);
}

.search-results-live:empty {
    display: none;
}

/* Dark mode adjustments for search overlay */
[data-theme="dark"] .search-overlay-backdrop {
    background: var(--color-overlay-dark);
}

[data-theme="dark"] .search-overlay-inner {
    background: var(--glass-bg-elevated);
    border-color: var(--color-border-medium);
}

[data-theme="dark"] .search-overlay-close {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .search-overlay-close:hover,
[data-theme="dark"] .search-overlay-close:focus {
    background: rgba(255, 255, 255, 0.15);
}

/* Mobile adjustments for search overlay */
@media (max-width: 768px) {
    .search-overlay-premium {
        padding: var(--space-4) var(--space-2);
    }

    .search-overlay-content {
        padding-top: calc(var(--header-height-mobile) + var(--space-6));
    }

    .search-overlay-close {
        top: var(--space-4);
        right: var(--space-2);
        width: 40px;
        height: 40px;
    }

    .search-overlay-inner {
        padding: var(--space-6);
    }

    .search-overlay-title {
        font-size: var(--font-size-xl);
        margin-bottom: var(--space-6);
    }

    .search-input-premium {
        font-size: var(--font-size-md);
        padding: var(--space-4) var(--space-4) var(--space-4) calc(var(--space-4) + 28px + var(--space-3));
    }

    .search-icon-large {
        left: var(--space-4);
        width: 28px;
        height: 28px;
    }

    .popular-tags {
        gap: var(--space-2);
    }

    .popular-tags .tag {
        padding: var(--space-2) var(--space-4);
        font-size: var(--font-size-xs);
    }
}

/* Accessibility: Respect prefers-reduced-motion for search overlay */
@media (prefers-reduced-motion: reduce) {
    .search-overlay-premium,
    .search-overlay-content,
    .search-overlay-close {
        transition: none !important;
    }
}