/* style.css */

/* --- VARIABLES DE LA DA "BORDER TECH" --- */
:root {
    --bg-deep: #0a0a0c;
    --surface: #15151a;
    --border-color: #272730;
    --red-neon: #ff1e1e;
    --text-main: #e2e8f0;
    --text-muted: #8b8b99;
    --font-main: 'Segoe UI', Roboto, Helvetica, sans-serif;
}

/* --- STYLES GLOBAUX --- */
body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: color 0.3s ease; }
a:hover { color: var(--red-neon); }

/* --- NAVBAR --- */
header {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
    color: var(--text-main);
}

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

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.btn-auth {
    background-color: transparent;
    color: var(--red-neon);
    border: 1px solid var(--red-neon);
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.btn-auth:hover {
    background-color: var(--red-neon);
    color: var(--bg-deep);
    box-shadow: 0 0 10px rgba(255, 30, 30, 0.4);
}

/* --- CONTENEUR PRINCIPAL --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    min-height: calc(100vh - 150px); /* S'assure que le footer reste en bas */
}

/* --- ACCUEIL & COMPOSANTS --- */
.hero { text-align: center; margin-bottom: 5rem; }
.hero h1 { font-size: 3.5rem; margin-bottom: 0.5rem; }
.hero p { color: var(--text-muted); font-size: 1.2rem; }

.section-title {
    font-size: 2rem;
    border-left: 4px solid var(--red-neon);
    padding-left: 1rem;
    margin-bottom: 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.card {
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 8px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--red-neon);
}

.card h3 { margin-top: 0; color: var(--red-neon); }