:root {
  --nt-primary: #4361ee;
  --nt-primary-dark: #3a57d4;
  --nt-accent: #4cc9f0;
  --nt-danger: #ef476f;
  --nt-warning: #f4a261;
  --nt-success: #21c55d;
  --nt-muted: #6c768a;
  --nt-border: #e5e7f3;
  --nt-card-bg: #ffffff;
}

.notifications-page {
  padding: 2.5rem 1rem 3rem;
  background: linear-gradient(180deg, #eef2ff 0%, #ffffff 38%);
  min-height: calc(100vh - 120px);
  width: 100%;
  overflow-x: hidden;
}

.notifications-container {
  max-width: 1100px;
  width: min(100%, 1100px);
  margin: 0 auto;
  padding: 0 0.5rem;
  box-sizing: border-box;
}

.notifications-hero {
  background: var(--nt-card-bg);
  border-radius: 20px;
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  box-shadow: 0 30px 40px rgba(67, 97, 238, 0.08);
  border: 1px solid var(--nt-border);
  margin-bottom: 1.5rem;
}

.hero-text .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  color: var(--nt-accent);
  margin-bottom: 0.75rem;
}

.hero-text .page-title {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
  color: #1f2a44;
}

.hero-subtitle {
  color: var(--nt-muted);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn-pill {
  border-radius: 999px;
  font-weight: 600;
  padding: 0.65rem 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.notifications-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stats-card {
  background: var(--nt-card-bg);
  border-radius: 18px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--nt-border);
  box-shadow: 0 15px 25px rgba(99, 102, 241, 0.08);
  position: relative;
  overflow: hidden;
}

.stats-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--nt-primary);
  background: rgba(67, 97, 238, 0.12);
}

.stats-card.unread-card .stats-icon {
  color: var(--nt-warning);
  background: rgba(244, 162, 97, 0.16);
}

.stats-card.action-card .stats-icon {
  color: var(--nt-success);
  background: rgba(33, 197, 93, 0.15);
}

.stats-label {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--nt-muted);
  margin-bottom: 0.25rem;
}

.stats-value {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0;
  color: #0b1437;
}

.stats-pill {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--nt-primary);
  background: rgba(67, 97, 238, 0.1);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
}

.notifications-toolbar {
  background: var(--nt-card-bg);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  border: 1px solid var(--nt-border);
  box-shadow: 0 15px 30px rgba(15, 23, 42, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.filter-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-chip {
  border: 1px solid var(--nt-border);
  background: transparent;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-weight: 500;
  color: #1f2a44;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-chip .chip-count {
  background: rgba(67, 97, 238, 0.12);
  color: var(--nt-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.1rem 0.6rem;
  border-radius: 999px;
}

.filter-chip.active {
  background: var(--nt-primary);
  color: #fff;
  border-color: var(--nt-primary);
  box-shadow: 0 10px 20px rgba(67, 97, 238, 0.2);
}

.filter-chip.active .chip-count {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.search-field {
  border-radius: 999px;
  border: 1px solid var(--nt-border);
  padding: 0.4rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 260px;
  color: var(--nt-muted);
}

.search-field input {
  border: none;
  outline: none;
  width: 100%;
  font-size: 0.95rem;
}

.notifications-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.notification-card {
  background: var(--nt-card-bg);
  border-radius: 20px;
  border: 1px solid var(--nt-border);
  box-shadow: 0 25px 35px rgba(79, 89, 128, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  width: 100%;
  overflow: hidden;
}

.notification-card.unread {
  border-color: rgba(67, 97, 238, 0.5);
  box-shadow: 0 30px 40px rgba(67, 97, 238, 0.12);
}

.notification-card.is-hidden {
  display: none;
}

.notification-card:hover {
  transform: translateY(-3px);
}

.notification-wrapper {
  display: flex;
  padding: 1.5rem;
  gap: 1rem;
}

.notification-icon-container {
  position: relative;
}

.notification-icon {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  background: rgba(67, 97, 238, 0.1);
  color: var(--nt-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.status-dot {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--nt-primary);
  border: 2px solid var(--nt-card-bg);
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.2s ease;
}

.notification-card.unread .status-dot {
  opacity: 1;
  transform: scale(1);
}

.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.title-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.notification-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: #0f172a;
}

.notification-badge {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  background: rgba(99, 102, 241, 0.12);
  color: var(--nt-primary);
}

.notification-badge[data-type="message"] {
  background: rgba(244, 162, 97, 0.15);
  color: var(--nt-warning);
}

.notification-badge[data-type="system"] {
  background: rgba(108, 117, 125, 0.15);
  color: var(--nt-muted);
}

.notification-badge[data-type="leave_request"] {
  background: rgba(239, 71, 111, 0.12);
  color: var(--nt-danger);
}

.notification-time {
  color: var(--nt-muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.notification-message {
  color: #3f4c66;
  margin-bottom: 0.9rem;
}

.notification-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.status-chip {
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  border: 1px solid var(--nt-border);
  color: var(--nt-muted);
}

.status-chip.status-unread {
  background: rgba(67, 97, 238, 0.12);
  border-color: rgba(67, 97, 238, 0.3);
  color: var(--nt-primary);
}

.status-chip.status-read {
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(15, 23, 42, 0.08);
  color: #1f2937;
}

.status-chip.status-action {
  background: rgba(244, 162, 97, 0.15);
  border-color: rgba(244, 162, 97, 0.4);
  color: var(--nt-warning);
}

.status-chip.status-success {
  background: rgba(33, 197, 93, 0.12);
  border-color: rgba(33, 197, 93, 0.3);
  color: var(--nt-success);
}

.status-chip.status-danger {
  background: rgba(239, 71, 111, 0.12);
  border-color: rgba(239, 71, 111, 0.3);
  color: var(--nt-danger);
}

.notification-actions {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.primary-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.secondary-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.action-form {
  display: inline-flex;
  gap: 0.5rem;
}

.mark-read-link {
  font-weight: 600;
  color: var(--nt-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.mark-read-link:hover {
  text-decoration: underline;
}

.mark-read-link.is-loading {
  opacity: 0.5;
  pointer-events: none;
}

.js-mark-all-read.is-loading {
  opacity: 0.7;
  pointer-events: none;
}

.filter-empty-state {
  margin-top: 2rem;
  text-align: center;
  background: var(--nt-card-bg);
  border-radius: 18px;
  border: 1px dashed var(--nt-border);
  padding: 2.5rem 1rem;
}

.filter-empty-state .empty-icon {
  color: var(--nt-muted);
}

.pagination-container .page-link {
  border-radius: 999px;
  color: var(--nt-primary);
  border-color: transparent;
}

.pagination-container .page-item.active .page-link {
  background: var(--nt-primary);
  color: #fff;
}

@media (max-width: 768px) {
  .notifications-hero {
    flex-direction: column;
    width: 100%;
  }

  .notifications-stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    width: 100%;
  }

  .notifications-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    width: 100%;
  }

  .search-field {
    width: 100%;
    min-width: unset;
  }

  .notification-wrapper {
    flex-direction: column;
  }

  .notification-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .primary-actions {
    width: 100%;
  }

  .secondary-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .action-form {
    flex-wrap: wrap;
    width: 100%;
  }

  .action-form button {
    flex: 1 1 140px;
  }

  .notification-icon {
    width: 52px;
    height: 52px;
  }
}

@media (max-width: 600px) {
  .notifications-stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .filter-group {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-chip {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .notifications-page {
    padding: 1.5rem 0.5rem 2.5rem;
  }

  .filter-group {
    width: 100%;
  }
}