:root {
    --color-black: #1a1a1a;
    --color-gold: #C9922A;
    --color-gold-light: #F5E6C8;
    --color-gray-bg: #f7f6f3;
    --color-text: #2c2c2a;
    --color-muted: #6b6b67;
    --color-border: rgba(0,0,0,0.1);
    --color-white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 400;
    line-height: 1.3;
}

h1 { font-size: 48px; }
h2 { font-size: 32px; }
h3 { font-size: 22px; }

a {
    color: inherit;
    text-decoration: none;
}

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

/* ---------- Boutons ---------- */

.btn-primary {
    display: inline-block;
    background: var(--color-gold);
    color: #fff;
    padding: 12px 24px;
    border-radius: 4px;
    border: none;
    font-family: system-ui, sans-serif;
    font-size: 14px;
    cursor: pointer;
    transition: transform 0.25s ease;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.03);
}

.btn-outline {
    display: inline-block;
    border: 0.5px solid var(--color-border);
    color: var(--color-muted);
    padding: 12px 24px;
    border-radius: 4px;
    background: transparent;
    font-family: system-ui, sans-serif;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.btn-outline:hover {
    border-color: var(--color-gold);
    color: var(--color-text);
}

.btn-outline-white {
    display: inline-block;
    border: 0.5px solid rgba(255,255,255,0.3);
    color: rgba(255,255,255,0.7);
    padding: 12px 24px;
    border-radius: 4px;
    background: transparent;
    font-family: system-ui, sans-serif;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.btn-outline-white:hover {
    border-color: rgba(255,255,255,0.6);
    color: #fff;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 12px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ---------- Sections ---------- */

.section {
    padding: 60px 28px;
}

.section-dark {
    background: var(--color-black);
    color: #fff;
}

.section-gray {
    background: var(--color-gray-bg);
}

.section-gold {
    background: var(--color-gold-light);
}

/* ---------- Typographie utilitaire ---------- */

.label-tag {
    font-size: 11px;
    letter-spacing: 2.5px;
    color: var(--color-gold);
    text-transform: uppercase;
    font-family: system-ui, sans-serif;
    font-weight: 400;
}

.gold-divider {
    width: 36px;
    height: 2px;
    background: var(--color-gold);
    display: block;
}

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

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

/* ---------- Grilles ---------- */

.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--color-border);
}

.grid-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--color-border);
}

.grid-cell {
    background: #fff;
    padding: 28px 24px;
}

/* ---------- Container ---------- */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 28px;
}

/* ---------- Responsive ---------- */

/* ---------- Animations ---------- */

.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

.gold-divider {
    transition: width 0.5s ease;
    width: 0;
}

.is-visible .gold-divider,
.gold-divider.is-visible {
    width: 36px;
}

@media (prefers-reduced-motion: reduce) {
    .fade-up {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .gold-divider {
        width: 36px;
        transition: none;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 28px; }
    h2 { font-size: 22px; }
    h3 { font-size: 19px; }

    .section {
        padding: 40px 20px;
    }

    .grid-3col {
        grid-template-columns: 1fr;
    }

    .grid-2col {
        grid-template-columns: 1fr;
    }
}