/* === FONDAMENTAUX & TYPOGRAPHIE === */
body {
    font-family: 'Roboto', sans-serif;
    background-color: #0A0A0A;
    color: #E5E5E5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Teko', sans-serif;
    text-transform: uppercase;
    color: #FFFFFF;
    line-height: 1.1;
}
h1 { font-size: 3rem; } /* 48px */
h2 { font-size: 2.25rem; } /* 36px */
h3 { font-size: 1.5rem; } /* 24px */

/* Typographie responsive pour les grands écrans */
@media (min-width: 768px) {
    h1 { font-size: 4.5rem; } /* 72px */
    h2 { font-size: 3.75rem; } /* 60px */
    h3 { font-size: 1.875rem; } /* 30px */
}

.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: 1280px; } }

/* === GRILLES RESPONSIVES === */
.grid-container {
    display: grid;
    gap: 2rem;
}
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* === COMPOSANTS PERSONNALISÉS === */
/* Boutons */
.btn {
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 2px;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
}
.btn-primary { background-color: #D32F2F; color: #FFFFFF; }
.btn-primary:hover { background-color: #B71C1C; transform: scale(1.05); }
.btn-secondary { border: 2px solid #6B7280; color: #FFFFFF; }
.btn-secondary:hover { border-color: #D32F2F; color: #D32F2F; }

/* Cartes Produit */
.product-card {
    background-color: #171717;
    border: 1px solid #262626;
    border-radius: 0.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
}
.product-card:hover { transform: translateY(-8px); border-color: #404040; }
.product-card img { transition: transform 0.4s ease; }
.product-card:hover img { transform: scale(1.05); }

/* Header */
.sticky-header {
    position: sticky;
    top: 0;
    z-index: 50;
    transition: all 0.3s ease-in-out;
}
.header-scrolled {
    background-color: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #262626;
}

/* Formulaires */
.form-input, .form-textarea, .form-select {
    width: 100%;
    background-color: #171717;
    border: 1px solid #404040;
    color: #E5E5E5;
    border-radius: 0.375rem;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: #D32F2F;
    box-shadow: 0 0 0 1px #D32F2F;
}
.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #a3a3a3;
    margin-bottom: 0.5rem;
}