@layer base {

/* ============================================
   Notification Center
   ============================================ */

.notification-center {
    position: relative;
}

.notification-bell {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: var(--radius-full);
    background: var(--color-danger);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    pointer-events: none;
    animation: badge-pop 0.3s ease-out;
}

@keyframes badge-pop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.notification-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 360px;
    max-height: 480px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-sticky);
    display: flex;
    flex-direction: column;
    animation: slide-down 0.2s ease-out;
    overflow: hidden;
}

.notification-panel.hidden {
    display: none;
}

@keyframes slide-down {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
    .notification-panel {
        position: fixed;
        top: 56px;
        right: var(--space-2);
        left: var(--space-2);
        width: auto;
        max-height: 60vh;
    }
}

.notification-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-color);
}

.notification-panel-title {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.notification-mark-all {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--accent);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.notification-mark-all:hover {
    background: rgba(59, 130, 246, 0.1);
}

.btn-text {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
}

.notification-panel-body {
    overflow-y: auto;
    flex: 1;
    padding: var(--space-1);
}

.notification-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    position: relative;
}

.notification-item:hover {
    background: var(--surface-1);
}

.notification-item.notification-unread {
    background: rgba(59, 130, 246, 0.05);
}

.notification-item.notification-unread {
    padding-left: 16px;
}

.notification-item.notification-unread::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.notification-item-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
}

.notification-type-achievement {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.notification-type-tournament {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.notification-type-system {
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-muted);
}

.notification-type-challenge {
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-success);
}

.notification-emoji {
    font-size: 16px;
    line-height: 1;
}

.notification-item-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.notification-item-title {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.notification-item-message {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.4;
}

.notification-item-time {
    font-size: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.notification-read-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--text-muted);
    border-radius: 50%;
    transition: background var(--transition-fast), color var(--transition-fast);
    flex-shrink: 0;
}

.notification-read-btn:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.notification-empty {
    text-align: center;
    padding: var(--space-4);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.notification-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-8) var(--space-4);
    color: var(--text-muted);
}

.notification-empty-state svg {
    opacity: 0.4;
}

.notification-empty-state p {
    font-size: var(--text-sm);
    margin: 0;
}

} /* end @layer base */