/* --- Header --- */
.app-header {
    background: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
    padding-block: var(--space-md);
    padding-top: max(var(--space-md), var(--safe-top));
}

.logo {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.05em;
    color: var(--text-primary);
}

.desktop-nav {
    display: none;
}

@media (min-width: 768px) {
    .desktop-nav { display: block; }
    .mobile-only { display: none !important; }
}

.nav-link {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: color 0.2s, background 0.2s;
}

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

/* --- Mobile Drawer --- */
.drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    z-index: 100;
    pointer-events: none;
}

.drawer.active {
    pointer-events: auto;
}

.drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
}

.drawer.active .drawer-overlay {
    opacity: 1;
}

.drawer-content {
    position: absolute;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100%;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    padding: var(--space-xl);
    padding-top: max(var(--space-xl), var(--safe-top));
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.drawer.active .drawer-content {
    right: 0;
}

.drawer-nav {
    display: flex;
}

.drawer-nav .nav-link {
    font-size: var(--text-xl);
    padding-block: var(--space-sm);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0;
}

/* --- Buttons & Cards --- */
.btn-primary {
    background: var(--accent-primary);
    color: var(--bg-main);
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: var(--text-base);
    transition: transform 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: var(--text-base);
    transition: background 0.2s, border-color 0.2s;
}
.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: border-color 0.3s, transform 0.3s, background 0.3s;
}

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

/* Status Indicator */
.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}