/* ============================================================================
   Notifications Center — .nc-* prefix
   ============================================================================ */

.nc-screen {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  max-width: 720px;
  margin: 0 auto;
  padding: 0 0 16px;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.nc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 12px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-shrink: 0;
}

.nc-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-1);
  margin: 0;
}

.nc-read-all {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent, #4f46e5);
  background: color-mix(in srgb, var(--accent, #4f46e5) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, #4f46e5) 25%, transparent);
  border-radius: 8px;
  padding: 5px 12px;
  cursor: pointer;
  transition: background .15s;
  white-space: nowrap;
}
.nc-read-all:hover {
  background: color-mix(in srgb, var(--accent, #4f46e5) 18%, transparent);
}

/* ── Tabs ────────────────────────────────────────────────────────────────── */
.nc-tabs {
  display: flex;
  gap: 4px;
  padding: 10px 24px 8px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.nc-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  background: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all .15s;
}
.nc-tab:hover {
  background: var(--bg-2);
}
.nc-tab.on {
  color: var(--accent, #4f46e5);
  background: color-mix(in srgb, var(--accent, #4f46e5) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent, #4f46e5) 25%, transparent);
}

.nc-badge {
  background: var(--accent, #4f46e5);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  padding: 0 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ── List ────────────────────────────────────────────────────────────────── */
.nc-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 16px 16px;
}

.nc-group {
  margin-bottom: 16px;
}

.nc-day-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-3);
  padding: 10px 8px 6px;
}

.nc-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  margin-bottom: 4px;
  cursor: pointer;
  transition: background .12s, border-color .12s;
  position: relative;
  background: var(--bg-2);
}
.nc-card:hover {
  border-color: var(--border);
  background: color-mix(in srgb, var(--bg-2) 80%, var(--accent, #4f46e5) 5%);
}
.nc-card.unread {
  background: color-mix(in srgb, var(--accent, #4f46e5) 6%, var(--bg));
  border-color: color-mix(in srgb, var(--accent, #4f46e5) 20%, transparent);
  border-left: 3px solid var(--accent, #4f46e5);
}

.nc-icon {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 1px;
}

.nc-card-body {
  flex: 1;
  min-width: 0;
}

.nc-text {
  font-size: 13px;
  color: var(--text-1);
  line-height: 1.45;
  margin: 0 0 4px;
}

.nc-time {
  font-size: 11px;
  color: var(--text-3);
}

.nc-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent, #4f46e5);
  flex-shrink: 0;
  margin-top: 5px;
}

/* ── States ──────────────────────────────────────────────────────────────── */
.nc-loading {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nc-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent, #4f46e5);
  border-radius: 50%;
  animation: nc-spin .7s linear infinite;
}
@keyframes nc-spin { to { transform: rotate(360deg); } }

.nc-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-3);
  padding: 40px;
}
.nc-empty-icon { font-size: 48px; }
.nc-empty p { font-size: 14px; font-weight: 500; margin: 0; }

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .nc-header { padding: 16px 16px 10px; }
  .nc-tabs   { padding: 8px 16px 6px; }
  .nc-list   { padding: 6px 8px 12px; }
}