/* --- Variables & Thèmes --- */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --card-border: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --tag-bg: #f1f5f9;
    --tag-color: #475569;
    --badge-bg: #dcfce7;
    --badge-color: #15803d;
    --badge-dot: #22c55e;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

[data-bs-theme="dark"] {
    --bg-body: #090d16;
    --bg-surface: #111827;
    --card-border: #1f2937;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --tag-bg: #1f2937;
    --tag-color: #d1d5db;
    --badge-bg: #064e3b;
    --badge-color: #6ee7b7;
    --badge-dot: #10b981;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-body);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- Navigation --- */
.navbar {
    background-color: var(--bg-surface) !important;
    border-color: var(--card-border) !important;
    box-shadow: 0 1px 3px var(--shadow-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-main) !important;
}

.nav-link {
    color: var(--text-muted) !important;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color) !important;
}

/* --- Bouton Dark Mode --- */
.btn-theme-toggle {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-main);
    border-radius: 8px;
    padding: 6px 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-theme-toggle:hover {
    background-color: var(--tag-bg);
}

/* --- Hero Section --- */
.hero-section {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--card-border);
    padding: 70px 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.hero-title {
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-main);
}

.badge-status {
    background-color: var(--badge-bg);
    color: var(--badge-color);
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.badge-status::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--badge-dot);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

/* --- Cartes Projets --- */
.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -10px var(--shadow-color);
}

.project-thumb {
    height: 180px;
    background-color: var(--tag-bg);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-thumb .project-icon {
    font-size: 3.5rem;
    color: var(--text-muted);
}

.tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 6px;
    background-color: var(--tag-bg);
    color: var(--tag-color);
}

/* --- Cartes Compétences --- */
.skill-box {
    background: var(--bg-surface);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: border-color 0.2s, background-color 0.3s;
}

.skill-box:hover {
    border-color: var(--primary-color);
}

.skill-box i {
    font-size: 2.2rem;
    margin-bottom: 8px;
    display: inline-block;
}

/* --- Section White / Surface --- */
.bg-surface-section {
    background-color: var(--bg-surface) !important;
    border-color: var(--card-border) !important;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* --- Boutons Contact --- */
.btn-contact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    background: var(--bg-surface);
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-contact:hover {
    background: var(--tag-bg);
    border-color: var(--text-muted);
    color: var(--primary-color);
}