/* Polices et variables */
@import url('https://fonts.googleapis.com/css2?family=Cabinet+Grotesk:wght@400;500;700&family=Satoshi:wght@300;400;500;700&display=swap');

:root {
    --primary: #111111;       /* Noir profond architectural */
    --accent: #c5a880;        /* Beige doré / Teinte bois moderne */
    --accent-light: #f4efe8;  /* Fond beige très doux */
    --text: #2c2c2c;          /* Gris foncé pour le texte */
    --text-muted: #777777;    /* Gris clair pour les sous-titres */
    --bg-light: #fbfbfb;      /* Fond de section clair */
    --white: #ffffff;
    --font-title: 'Cabinet Grotesk', sans-serif;
    --font-body: 'Satoshi', sans-serif;
}

/* Réinitialisation */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.90);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
}

.logo {
    font-family: var(--font-title);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary);
}

.logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent);
}

.btn-nav {
    background-color: var(--primary);
    color: var(--white) !important;
    padding: 0.6rem 1.4rem;
    border-radius: 4px;
    transition: background-color 0.3s !important;
}

.btn-nav:hover {
    background-color: var(--accent) !important;
}

/* Hero Section */
.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    color: var(--white);
    margin-top: 0;
    overflow: hidden;
}

/* Lignes décoratives en arrière-plan (effet bardage) */
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 25%; right: 25%; bottom: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.03);
    border-right: 1px solid rgba(255, 255, 255, 0.03);
    pointer-events: none;
}

.hero-content {
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
    z-index: 2;
}

.hero-tag {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--accent);
    margin-bottom: 1.5rem;
    display: inline-block;
    font-weight: 700;
}

.hero h1 {
    font-family: var(--font-title);
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: #cccccc;
    font-weight: 300;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Boutons */
.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--accent);
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: transform 0.3s, background-color 0.3s;
}

.btn-primary:hover {
    background-color: var(--white);
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    padding: 1rem 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: background-color 0.3s, border-color 0.3s;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--white);
}

/* Sections Structure */
.section {
    padding: 9rem 2rem;
}

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

.bg-dark {
    background-color: var(--primary);
    color: var(--white);
}

.container {
    max-width: 1140px;
    margin: 0 auto;
}

.subtitle {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 1rem;
    font-weight: 700;
}

h2 {
    font-family: var(--font-title);
    font-size: 2.8rem;
    color: var(--primary);
    margin-bottom: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.text-white { color: var(--white); }
.text-muted { color: #aaaaaa; margin-bottom: 2rem; }

/* Grilles */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 4rem;
}

.text-block p {
    font-size: 1.15rem;
    font-weight: 300;
    color: #444;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

/* À Propos Spécifique */
.lead {
    font-size: 1.3rem !important;
    color: var(--primary) !important;
    font-weight: 500 !important;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.status-box {
    background-color: var(--accent-light);
    padding: 2.5rem;
    border-radius: 6px;
    border-left: 4px solid var(--accent);
}

.status-box h3 {
    font-family: var(--font-title);
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.pro-arguments {
    list-style: none;
}

.pro-arguments li {
    margin-bottom: 1.2rem;
    font-size: 1rem;
    color: #444;
}

.pro-arguments li:last-child {
    margin-bottom: 0;
}

/* Méthodologie / Étapes */
.bg-light-grain {
    background-color: #f7f6f3;
    border-top: 1px solid rgba(0,0,0,0.02);
    border-bottom: 1px solid rgba(0,0,0,0.02);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.step-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 4px;
    position: relative;
    border: 1px solid rgba(0,0,0,0.03);
}

.step-number {
    font-family: var(--font-title);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(197, 168, 128, 0.2);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

.step-card h3 {
    font-family: var(--font-title);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    margin-top: 1rem;
    color: var(--primary);
}

.step-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 300;
}

/* Cartes Prestations */
.card {
    background-color: var(--white);
    padding: 3.5rem 2.5rem;
    border: 1px solid #eaeaea;
    border-radius: 6px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.04);
    border-color: var(--accent);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.card h3 {
    font-family: var(--font-title);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.card p {
    color: #555;
    font-weight: 300;
}

/* Galerie Portfolio */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.gallery-item {
    background-color: var(--bg-light);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #eaeaea;
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: translateY(-3px);
}

.gallery-img-placeholder {
    height: 240px;
    background-color: #f0f0f2;
    background-image: linear-gradient(rgba(0,0,0,0.02) 50%, transparent 50%);
    background-size: 100% 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.gallery-info {
    padding: 1.5rem;
}

.gallery-info h3 {
    font-family: var(--font-title);
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

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

/* Section Contact */
.text-center { text-align: center; }

.btn-email {
    font-family: var(--font-title);
    font-size: 2.5rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 2px solid rgba(197, 168, 128, 0.3);
    padding-bottom: 0.5rem;
    transition: border-color 0.3s, color 0.3s;
}

.btn-email:hover {
    color: var(--white);
    border-color: var(--accent);
}

.contact-details {
    margin-top: 3rem;
    font-size: 1.1rem;
    color: #888;
}

/* Footer */
footer {
    background-color: #0a0a0a;
    color: #555;
    text-align: center;
    padding: 3rem 2rem;
    font-size: 0.9rem;
    border-top: 1px solid #111;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.8rem; }
    .hero p { font-size: 1.1rem; }
    .hero-buttons { flex-direction: column; gap: 0.8rem; }
    .section { padding: 5rem 1.5rem; }
    h2 { font-size: 2rem; }
    .btn-email { font-size: 1.5rem; }
    .status-box { padding: 1.5rem; }
}