/* ============================================================
   LAYOUT.CSS - Header, navigation, footer, sections
   ============================================================ */

/* ============================================================
   HEADER
   ============================================================ */
body {
    background-color: var(--color-bg-primary);
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-header);
    transition: background var(--transition-base), border-color var(--transition-base);
}

.site-header.scrolled {
    background: rgba(10, 10, 10, 0.98);
    border-bottom-color: var(--color-accent);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    height: 60px;
    transition: transform var(--transition-fast);
}

.header-logo:hover {
    transform: scale(1.02);
}

.header-logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

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

.main-nav a {
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-base);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-text-primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    transform: scaleX(1);
}

/* CTA dans le header */
.header-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-accent);
    color: var(--color-text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-base);
}

.header-cta:hover {
    background: var(--color-accent-hover);
    color: var(--color-text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-red);
}

/* Menu burger mobile */
.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    border-radius: var(--radius-sm);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    padding-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
    background-color: var(--color-bg-primary);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    color: var(--color-text-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--color-border);
}

.footer-brand img {
    height: 60px;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer-column h6 {
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-column h6::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--color-accent);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast), padding-left var(--transition-fast);
    display: inline-block;
}

.footer-column a:hover {
    color: var(--color-accent);
    padding-left: var(--spacing-xs);
}

.footer-column .contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-column .contact-item svg {
    width: 16px;
    height: 16px;
    fill: var(--color-accent);
    flex-shrink: 0;
    margin-top: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.footer-bottom a {
    color: var(--color-text-muted);
}

.footer-bottom a:hover {
    color: var(--color-accent);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.footer-social svg {
    width: 16px;
    height: 16px;
    fill: var(--color-text-primary);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid var(--color-border);
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .main-nav ul {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-md);
    }

    .main-nav a {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}