/* ==========================================================================
   DESIGN SYSTEM : ELEVATION / MODERN MINIMALISM
   ========================================================================== */
:root {
    /* Palette Architecturale */
    --brand-gold: #D4AF37; /* Or Royal */
    --brand-black: #050505;
    --brand-grey: #121212;
    --brand-white: #FFFFFF;
    --text-muted: #A0A0A0;
    
    /* Typographie d'Élite */
    --font-display: 'Outfit', sans-serif;
    --font-main: 'Inter', sans-serif;
    
    /* Animation & Rythme */
    --transition-base: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--brand-black);
    color: var(--brand-white);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ==========================================================================
   NAVIGATION (ULTRA-MINIMAL)
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 30px 0;
    transition: var(--transition-base);
}

.main-header.scrolled {
    padding: 15px 0;
    background: rgba(5,5,5,0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.logo-wrap {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.logo-img {
    height: 50px;
    filter: brightness(1.2);
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.8rem;
    color: var(--brand-white);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--brand-white);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition-base);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--brand-gold);
    transition: var(--transition-base);
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.btn-live {
    background: var(--brand-gold);
    color: var(--brand-black) !important;
    padding: 12px 35px;
    border-radius: 50px; /* Forme pilule arrondie */
    font-weight: 800 !important;
}

/* ==========================================================================
   HERO (CINEMATIC FULLSCREEN)
   ========================================================================== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
}

.hero-video-bg img {
    width: 100%; height: 100%; object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 100%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-tag {
    color: var(--brand-gold);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 5px;
    display: block;
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(3.5rem, 8vw, 7rem);
    line-height: 0.9;
    margin-bottom: 30px;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: 40px;
}

/* ==========================================================================
   SECTIONS & GRID
   ========================================================================== */
section {
    padding: 140px 0;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 60px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* CARDS LUXURY */
.modern-card {
    background: var(--brand-grey);
    padding: 50px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.modern-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background: var(--brand-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-base);
}

.modern-card:hover {
    transform: translateY(-10px);
    background: #1a1a1a;
}

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

.card-num {
    font-size: 4rem;
    font-family: var(--font-display);
    opacity: 0.1;
    margin-bottom: 20px;
    display: block;
}

/* ==========================================================================
   PROGRAMME (MODERN LIST)
   ========================================================================== */
.program-list {
    border-top: 1px solid rgba(255,255,255,0.1);
}

.program-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition-base);
}

.program-item:hover {
    padding-left: 20px;
    color: var(--brand-gold);
}

.prog-day {
    font-size: 2.5rem;
    font-weight: 900;
}

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

.prog-time {
    color: var(--brand-gold);
    font-weight: 700;
    display: block;
}

/* ==========================================================================
   FOOTER (DARK)
   ========================================================================== */
.footer {
    background: #000;
    padding: 100px 0 50px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-logo {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 30px;
}

.footer-links h4 {
    color: var(--brand-gold);
    margin-bottom: 30px;
    font-size: 0.9rem;
    letter-spacing: 3px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-base);
}

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

/* RESPONSIVE */
@media (max-width: 1024px) {
    .grid-3 { grid-template-columns: 1fr; }
    .hero-title { font-size: 4rem; }
}