/**
 * ============================================
 * FLAVIEN HUE - PORTFOLIO
 * Neo-Glassmorphism Design System
 * Version: 1.0.0
 * ============================================
 */

/* ============================================
   CSS CUSTOM PROPERTIES
============================================ */
:root {
    /* Colors */
    --bg-dark: #0B0F19;
    --bg-darker: #060912;
    --bg-card: #0d1117;
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);
    --accent: #10b981;
    --accent-light: #34d399;
    --accent-glow: rgba(16, 185, 129, 0.4);
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --text-subtle: #64748b;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --glass-blur: 40px;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #34d399 100%);
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 80px;
    --space-5xl: 120px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-spring: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-primary: 0 4px 20px var(--primary-glow);
    --shadow-primary-lg: 0 8px 40px var(--primary-glow);

    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 1000;
    --z-modal: 1500;
    --z-tooltip: 2000;
}

/* ============================================
   RESET & BASE
============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-muted);
    line-height: 1.7;
    font-weight: 400;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

::selection {
    background: var(--primary);
    color: var(--text-main);
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-subtle);
}

/* ============================================
   TYPOGRAPHY
============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Clash Display', 'Outfit', sans-serif;
    color: var(--text-main);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    background: linear-gradient(135deg, var(--text-main) 0%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

strong {
    font-weight: 600;
    color: var(--text-main);
}

/* ============================================
   LAYOUT
============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container-sm {
    max-width: 900px;
}

.container-lg {
    max-width: 1400px;
}

section {
    position: relative;
    padding: var(--space-5xl) 0;
    z-index: var(--z-base);
}

/* ============================================
   BACKGROUND EFFECTS
============================================ */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.bg-gradient-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    will-change: transform;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    left: -200px;
    opacity: 0.15;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    bottom: -150px;
    right: -150px;
    opacity: 0.1;
    animation-delay: -10s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(var(--primary), var(--accent));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.08;
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 30px) scale(1.02); }
}

.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity var(--transition-base);
    opacity: 0;
    will-change: left, top;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ============================================
   GLASS COMPONENTS
============================================ */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
}

.glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.glass-subtle {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

/* ============================================
   HEADER / NAVIGATION
============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    padding: var(--space-md) 0;
    transition: all var(--transition-spring);
}

.header.scrolled {
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: 'Clash Display', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: transform var(--transition-base);
}

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

.logo-img {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    object-fit: contain;
    transition: transform var(--transition-base);
}

.logo:hover .logo-img {
    transform: scale(1.08);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    padding: var(--space-sm) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--text-main);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    padding: var(--space-md) var(--space-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--text-main) !important;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-primary);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-lg);
}

.nav-cta::after {
    display: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: calc(var(--z-fixed) + 1);
    background: transparent;
    border: none;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(11, 15, 25, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    z-index: var(--z-fixed);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.mobile-nav.active {
    opacity: 1;
    pointer-events: auto;
}

.mobile-nav a {
    font-family: 'Clash Display', sans-serif;
    font-size: 1.75rem;
    color: var(--text-main);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

.mobile-nav.active a {
    opacity: 1;
    transform: translateY(0);
}

.mobile-nav.active a:nth-child(1) { transition-delay: 0.1s; }
.mobile-nav.active a:nth-child(2) { transition-delay: 0.15s; }
.mobile-nav.active a:nth-child(3) { transition-delay: 0.2s; }
.mobile-nav.active a:nth-child(4) { transition-delay: 0.25s; }

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

/* ============================================
   BUTTONS
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-spring);
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-main);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px var(--primary-glow);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-3px);
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

/* ============================================
   HERO SECTION
============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-muted);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-photo-wrapper {
    position: relative;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    padding: 4px;
    background: var(--gradient-primary);
    box-shadow: 0 0 60px var(--primary-glow), 0 0 100px rgba(99, 102, 241, 0.2);
    animation: float 6s ease-in-out infinite;
}

.hero-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-dark);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-visual-ring {
    position: absolute;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    animation: spin 30s linear infinite;
}

.hero-visual-ring:nth-child(1) {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.hero-visual-ring:nth-child(2) {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    animation-direction: reverse;
    animation-duration: 25s;
}

.hero-visual-ring:nth-child(3) {
    width: 60%;
    height: 60%;
    top: 20%;
    left: 20%;
    animation-duration: 20s;
}

.hero-visual-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary-glow);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   SECTION HEADERS
============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-4xl);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.section-label::before,
.section-label::after {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--primary);
    opacity: 0.5;
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header p {
    color: var(--text-muted);
}

/* ============================================
   WHY ME SECTION
============================================ */
.why-me {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
    padding-top: var(--space-3xl);
    border-top: 1px solid var(--glass-border);
}

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

.stat-number {
    display: block;
    font-family: 'Clash Display', sans-serif;
    font-size: 3rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }

    .stat-number {
        font-size: 2.5rem;
    }
}

.feature-card {
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    transition: all var(--transition-spring);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    position: relative;
    z-index: 1;
}

.feature-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    border-radius: inherit;
    filter: blur(20px);
    opacity: 0.5;
    z-index: -1;
}

.feature-card:nth-child(2) .feature-icon {
    background: var(--gradient-accent);
}

.feature-card:nth-child(3) .feature-icon {
    background: var(--gradient-gold);
}

.feature-card h3 {
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--text-muted);
    position: relative;
    z-index: 1;
}

/* ============================================
   PORTFOLIO SECTION
============================================ */
.portfolio {
    background: var(--bg-darker);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.portfolio-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-spring);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: block;
}

.portfolio-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
}

.portfolio-thumb {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.portfolio-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform var(--transition-slow), opacity var(--transition-base);
    background: var(--bg-darker);
}

.portfolio-thumb img[loading="lazy"] {
    opacity: 0;
}

.portfolio-thumb img.loaded,
.portfolio-thumb img:not([loading="lazy"]) {
    opacity: 1;
}

.portfolio-card:hover .portfolio-thumb img {
    transform: scale(1.05);
}

.portfolio-thumb-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Clash Display', sans-serif;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-main);
    opacity: 0.1;
    transition: all var(--transition-base);
}

.portfolio-card:hover .portfolio-thumb-content {
    opacity: 0.2;
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(11, 15, 25, 0.9) 100%);
    display: flex;
    align-items: flex-end;
    padding: var(--space-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-main);
    font-weight: 500;
}

.portfolio-info {
    padding: var(--space-lg);
}

.portfolio-category {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.portfolio-info h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    transition: color var(--transition-base);
}

.portfolio-card:hover .portfolio-info h3 {
    color: var(--primary);
}

.portfolio-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ============================================
   APPROACH / TIMELINE SECTION
============================================ */
.approach {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0.3;
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-content {
    width: calc(50% - 50px);
    padding: var(--space-xl);
    position: relative;
    transition: all var(--transition-spring);
}

.timeline-content:hover {
    transform: translateY(-4px);
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
}

.timeline-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--bg-dark);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Clash Display', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    z-index: 2;
    box-shadow: 0 0 30px var(--primary-glow);
    transition: all var(--transition-base);
}

.timeline-item:hover .timeline-number {
    background: var(--primary);
    color: var(--text-main);
    transform: translate(-50%, -50%) scale(1.1);
}

.timeline-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.timeline-content h3 {
    margin-bottom: var(--space-md);
}

.timeline-content p {
    color: var(--text-muted);
}

/* ============================================
   CONTACT SECTION
============================================ */
.contact {
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    opacity: 0.3;
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h2 {
    margin-bottom: var(--space-lg);
}

.contact-info > p {
    margin-bottom: var(--space-2xl);
    font-size: 1.125rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    transition: transform var(--transition-base);
}

.contact-item:hover {
    transform: translateX(8px);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.contact-item:hover .contact-icon {
    background: var(--primary);
    border-color: var(--primary);
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.875rem;
    color: var(--text-subtle);
    margin-bottom: var(--space-xs);
}

.contact-value {
    font-size: 1.125rem;
    color: var(--text-main);
    font-weight: 500;
}

.contact-value a {
    color: var(--text-main);
    transition: color var(--transition-base);
}

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

.contact-card {
    padding: var(--space-2xl);
    text-align: center;
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.contact-card p {
    margin-bottom: var(--space-xl);
    color: var(--text-muted);
}

.contact-card .btn {
    width: 100%;
}

/* Contact Form */
.contact-form {
    text-align: left;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-darker);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-subtle);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ============================================
   ZONE D'INTERVENTION SECTION - SEO Local
============================================ */
.zone-intervention {
    background: var(--bg-dark);
}

.zone-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.zone-category {
    padding: var(--space-xl);
    transition: all var(--transition-spring);
}

.zone-category:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.zone-category h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-lg);
    color: var(--primary);
}

.zone-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zone-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.95rem;
    color: var(--text-muted);
}

.zone-list li:last-child {
    border-bottom: none;
}

.zone-list li strong {
    color: var(--text-main);
}

.zone-sectors {
    text-align: center;
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
}

.zone-sectors p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.8;
}

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

@media (max-width: 768px) {
    .zone-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   FAQ SECTION
============================================ */
.faq {
    background: var(--bg-darker);
}

.faq-grid {
    display: grid;
    gap: var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xl);
    cursor: pointer;
    list-style: none;
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--text-main);
    transition: background var(--transition-base);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question:hover {
    background: var(--glass-bg-hover);
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: var(--primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--space-md);
}

.faq-item[open] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--space-xl) var(--space-xl);
    color: var(--text-muted);
    line-height: 1.7;
}

.faq-answer p {
    margin: 0;
}

/* ============================================
   FOOTER
============================================ */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-2xl) 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-logo {
    font-family: 'Clash Display', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
}

.footer-copy {
    font-size: 0.875rem;
    color: var(--text-subtle);
}

.footer-location {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-location svg {
    flex-shrink: 0;
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
============================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ============================================
   UTILITIES
============================================ */
.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;
}

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

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

/* ============================================
   RESPONSIVE - TABLET
============================================ */
@media (max-width: 1024px) {
    .hero-visual {
        display: flex;
        justify-content: center;
        margin-top: var(--space-xl);
    }

    .hero-photo-wrapper {
        width: 200px;
        height: 200px;
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
}

/* ============================================
   RESPONSIVE - MOBILE
============================================ */
@media (max-width: 768px) {
    section {
        padding: var(--space-4xl) 0;
    }

    .nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .features-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 80px;
    }

    .timeline-content {
        width: 100%;
        text-align: left !important;
    }

    .timeline-number {
        left: 30px;
        transform: translate(-50%, -50%);
    }

    .hero-cta-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero-visual {
        display: flex;
        justify-content: center;
        margin-top: var(--space-xl);
    }

    .hero-photo-wrapper {
        width: 180px;
        height: 180px;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .section-header {
        margin-bottom: var(--space-2xl);
    }
}

/* ============================================
   REDUCED MOTION
============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   PRINT STYLES
============================================ */
@media print {
    .bg-grid,
    .bg-gradient-orbs,
    .cursor-glow,
    .hero-visual {
        display: flex !important;
        justify-content: center;
        margin-top: var(--space-lg);
    }

    .hero-photo-wrapper {
        width: 180px;
        height: 180px;
    }

    body {
        background: white;
        color: black;
    }

    .glass {
        background: #f5f5f5;
        border: 1px solid #ddd;
    }
}