/* ===================================================================
   Layout: Grid, Flexbox, Page Structure
   =================================================================== */

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg-dark);
    border-bottom: 2px solid var(--color-gold-dark);
    height: var(--header-height);
}

.header-container {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-gold);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo:hover {
    color: var(--color-gold-light);
}

.logo-icon {
    font-size: 1.4rem;
}

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

.nav-link {
    color: var(--color-text-light);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.85;
    transition: opacity 0.2s;
}

.nav-link:hover {
    opacity: 1;
    color: var(--color-gold-light);
}

/* --- Footer --- */
.site-footer {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: var(--space-2xl) var(--space-lg);
    border-top: 2px solid var(--color-gold-dark);
    margin-top: var(--space-3xl);
}

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

.footer-tagline {
    font-family: var(--font-body);
    font-style: italic;
    opacity: 0.7;
    font-size: 0.85rem;
    margin-top: var(--space-xs);
}

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

.footer-links a {
    color: var(--color-text-light);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    opacity: 0.7;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-gold-light);
}

.footer-copy {
    font-size: 0.8rem;
    opacity: 0.5;
}

/* --- Dashboard Layout (3-column) --- */
.dashboard-body {
    overflow: hidden;
}

.dashboard-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr var(--social-panel-width);
    height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    background: var(--color-bg-dark);
    border-right: 1px solid rgba(200, 168, 78, 0.2);
    padding: var(--space-lg) 0;
    overflow-y: auto;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    color: var(--color-text-light);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.7;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    opacity: 1;
    background: rgba(200, 168, 78, 0.1);
    color: var(--color-gold-light);
}

.sidebar-link.active {
    opacity: 1;
    color: var(--color-gold);
    border-left-color: var(--color-gold);
    background: rgba(200, 168, 78, 0.08);
}

.sidebar-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

/* --- Friend Request Notification Badge --- */
.friend-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    border-radius: 9px;
    background: var(--color-red);
    color: #fff;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
    margin-left: auto;
}

.friend-badge--inline {
    margin-left: var(--space-xs);
    vertical-align: middle;
}

/* Dashboard Main */
.dashboard-main {
    padding: var(--space-xl);
    overflow-y: auto;
    background: var(--color-bg-primary);
}

/* Social Panel */
.social-panel {
    background: var(--color-bg-card);
    border-left: var(--border-card-light);
    padding: var(--space-lg);
    overflow-y: auto;
}

.panel-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

.feed-empty {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* --- Admin Layout --- */
.admin-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    height: calc(100vh - var(--header-height));
}

.admin-sidebar {
    background: var(--color-bg-dark);
    padding: var(--space-lg) 0;
}

.admin-main {
    padding: var(--space-xl);
    overflow-y: auto;
}

.admin-header {
    background: #1a1a2e;
}

/* --- Page Sections --- */
.page-section {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-lg);
}

.page-section h1 {
    margin-bottom: var(--space-lg);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .dashboard-layout {
        grid-template-columns: 60px 1fr;
    }
    .social-panel {
        display: none;
    }
    .sidebar-link span:not(.sidebar-icon) {
        display: none;
    }
    .sidebar-link {
        justify-content: center;
        padding: var(--space-md);
    }
}

@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none;
    }
    .header-nav {
        gap: var(--space-md);
    }
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.35rem; }
}