:root {
  --surface: #ffffff;
  --surface-muted: #f4f6f8;
  --line: #d8dee4;
  --text: #20242a;
  --muted: #667085;
  --primary: #0f6b58;
  --primary-dark: #0a5143;
  --danger: #b42318;
  --warning: #b54708;
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--surface-muted);
  color: var(--text);
}

a {
  color: var(--primary);
}

.btn {
  border-radius: 8px;
  font-weight: 600;
}

.btn-primary {
  --bs-btn-bg: var(--primary);
  --bs-btn-border-color: var(--primary);
  --bs-btn-hover-bg: var(--primary-dark);
  --bs-btn-hover-border-color: var(--primary-dark);
}

.btn-outline-primary {
  --bs-btn-color: var(--primary);
  --bs-btn-border-color: var(--primary);
  --bs-btn-hover-bg: var(--primary);
  --bs-btn-hover-border-color: var(--primary);
}

.form-control,
.form-select {
  border-radius: 8px;
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus,
.btn:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(15, 107, 88, 0.18);
}

.app-topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1030;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
}

.icon-link,
.profile-button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.icon-link {
  width: 42px;
}

.profile-button {
  max-width: 180px;
  padding: 0 0.75rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-icon {
  width: 20px;
  height: 20px;
}

.nav-icon path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.notification-badge,
.mobile-notification-badge {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--danger);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
}

.notification-badge {
  top: -6px;
  right: -6px;
}

.mobile-notification-badge {
  top: 3px;
  right: 8px;
}

.app-sidebar {
  position: fixed;
  top: 64px;
  bottom: 0;
  left: 0;
  width: 260px;
  padding: 1.25rem;
  background: var(--surface);
  border-right: 1px solid var(--line);
}

.side-nav {
  width: 100%;
  display: grid;
  gap: 0.35rem;
}

.side-link {
  display: block;
  padding: 0.75rem 0.85rem;
  border-radius: 8px;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.side-link:hover {
  background: #edf7f4;
  color: var(--primary-dark);
}

.app-main {
  width: 100%;
  max-width: 1220px;
  padding: 88px 1rem 96px;
  margin: 0 auto;
}

@media (min-width: 992px) {
  .app-main {
    margin-left: 260px;
    padding: 96px 2rem 3rem;
  }
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: linear-gradient(135deg, #f7f7f4 0%, #e8f2ef 48%, #f5efe8 100%);
}

.login-panel {
  width: min(100%, 460px);
}

.login-card,
.form-panel,
.filter-panel,
.table-shell,
.content-band,
.detail-main,
.detail-side {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 26px rgba(16, 24, 40, 0.06);
}

.login-card {
  padding: 1.5rem;
}

@media (min-width: 576px) {
  .login-card {
    padding: 2rem;
  }
}

.seed-credentials {
  padding: 0.9rem;
  border-radius: 8px;
  background: #f7faf9;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-heading {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.page-heading h1 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: 0;
}

.page-heading p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

@media (min-width: 768px) {
  .page-heading {
    flex-direction: row;
    align-items: center;
  }
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.metric-card {
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-weight: 600;
}

.metric-card strong {
  display: block;
  margin-top: 0.5rem;
  font-size: 2rem;
  line-height: 1;
}

.metric-danger strong {
  color: var(--danger);
}

.content-band,
.form-panel,
.filter-panel {
  padding: 1rem;
}

@media (min-width: 768px) {
  .content-band,
  .form-panel,
  .filter-panel {
    padding: 1.25rem;
  }
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-title h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
}

.quick-actions,
.action-row,
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.form-actions {
  justify-content: flex-end;
  margin-top: 1.25rem;
}

.narrow-form {
  max-width: 560px;
}

.table-shell {
  overflow: hidden;
}

.table th {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0;
  white-space: nowrap;
}

.filter-panel {
  margin-bottom: 1rem;
}

.task-list,
.notification-list {
  display: grid;
  gap: 0.85rem;
}

.task-card,
.notification-item {
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.task-card-main,
.notification-item {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .task-card-main,
  .notification-item {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.task-card h2,
.notification-item h2,
.detail-main h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0;
}

.task-meta,
.assigned-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.assigned-line {
  margin-top: 0.5rem;
}

.empty-state {
  padding: 2rem;
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.assignee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

.assignee-option {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.assignee-option small {
  display: block;
  color: var(--muted);
  word-break: break-word;
}

.detail-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 900px) {
  .detail-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
  }
}

.detail-main,
.detail-side {
  padding: 1.25rem;
}

.detail-main p {
  margin: 1rem 0 0;
  white-space: pre-wrap;
}

.detail-side dl {
  margin: 0;
}

.detail-side dt {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
}

.detail-side dd {
  margin: 0 0 1rem;
}

.stacked-actions {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

.notification-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

.notification-tabs a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.notification-tabs a.active {
  border-color: var(--primary);
  background: #edf7f4;
  color: var(--primary-dark);
}

.notification-tabs span {
  color: var(--muted);
}

.notification-item.unread {
  border-left: 4px solid var(--primary);
}

.notification-item p {
  margin: 0.25rem 0 0.5rem;
}

.mobile-bottom-nav {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 1040;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  min-height: 64px;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.mobile-bottom-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 0.4rem;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.alert {
  border-radius: 8px;
}

.text-danger {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.875rem;
}