/* ============================================
   Hibou Tools - PCB Tools Dark Theme
   ============================================ */

:root {
    /* Couleurs principales */
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --bg-card: #1e293b;
    --bg-card-hover: #263548;
    
    /* Accents Hibou Tools */
    --accent-amber: #fbbf24;
    --accent-amber-hover: #f59e0b;
    --accent-purple: #8b5cf6;
    --accent-purple-hover: #7c3aed;
    --accent-green: #10b981;
    --accent-green-hover: #059669;
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-red: #ef4444;
    
    /* Texte */
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* Bordures et ombres */
    --border-color: #374151;
    --border-accent: #4b5563;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow-amber: 0 0 20px rgba(251, 191, 36, 0.3);
    --shadow-glow-purple: 0 0 20px rgba(139, 92, 246, 0.3);
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Rayons de bordure */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Typographie */
    --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
}

/* Reset et base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Layout Principal
   ============================================ */

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ============================================
   Header / Navigation
   ============================================ */

.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-amber), var(--accent-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-glow-amber);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.logo:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow-purple);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--accent-amber);
}

/* ============================================
   Boutons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-amber);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-amber-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow-amber);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
}

.btn-success {
    background: var(--accent-green);
    color: white;
}

.btn-success:hover {
    background: var(--accent-green-hover);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--accent-amber);
    border: 2px solid var(--accent-amber);
}

.btn-outline:hover {
    background: var(--accent-amber);
    color: var(--bg-primary);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
}

/* ============================================
   Cartes Produits (style launcher)
   ============================================ */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-amber), var(--accent-purple));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-lg);
}

.product-card:hover::before {
    opacity: 1;
}

.product-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
}

.product-icon.amber { background: rgba(251, 191, 36, 0.15); color: var(--accent-amber); }
.product-icon.purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.product-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.product-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }

.product-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.product-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-lg);
    flex: 1;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.price-amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-amber);
}

.price-period {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.product-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.product-features li::before {
    content: '✓';
    color: var(--accent-green);
    font-weight: bold;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--text-primary), var(--accent-amber));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ============================================
   Badges et Tags
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
}

.badge-new {
    background: var(--accent-green);
    color: white;
}

.badge-popular {
    background: var(--accent-purple);
    color: white;
}

.badge-sale {
    background: var(--accent-red);
    color: white;
}

/* ============================================
   Formulaires
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-amber);
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.2);
}

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

/* ============================================
   Messages / Alertes
   ============================================ */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    margin-top: auto;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent-amber);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   Utilitaires
   ============================================ */

.text-amber { color: var(--accent-amber); }
.text-purple { color: var(--accent-purple); }
.text-green { color: var(--accent-green); }
.text-blue { color: var(--accent-blue); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.text-center { text-align: center; }
.text-right { text-align: right; }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease forwards;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}