:root {
  --primary: #56D189;
  --primary-container: #d8f5e8;
  --on-primary: #ffffff;
  --surface: #f8fdf9;
  --surface-container: #edf7f1;
  --surface-container-high: #e2f0e8;
  --on-surface: #1d1b20;
  --on-surface-variant: #49454f;
  --outline: #79747e;
  --error: #b3261e;
  --error-container: #f9dedc;
  --success: #386a20;
  --sidebar-width: 260px;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.5;
  min-height: 100vh;
}

h1, h2, h3, p {
  margin: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Layout */

.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--on-surface);
  color: #e6e1e5;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 20px;
  font-size: 1.1rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand .material-icons {
  color: var(--primary-container);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 28px;
  color: #cac4d0;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.15s, color 0.15s;
  border: none;
  background: none;
  width: 100%;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
}

.nav-link.active {
  background: var(--primary-container);
  color: var(--on-surface);
}

.nav-link .material-icons {
  font-size: 22px;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 32px;
  min-width: 0;
}

.page {
  max-width: 1200px;
}

.page-header {
  margin-bottom: 24px;
}

.page-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 400;
  margin-top: 8px;
}

.page-subtitle {
  color: var(--on-surface-variant);
  margin-top: 4px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--on-surface-variant);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.back-link:hover {
  color: var(--primary);
}

/* Cards */

.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--surface-container-high);
}

/* Login */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, var(--surface) 0%, var(--primary-container) 100%);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: 40px 32px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-icon {
  font-size: 48px !important;
  color: var(--primary);
  margin-bottom: 12px;
}

.login-header h1 {
  font-size: 1.5rem;
  font-weight: 500;
}

.login-header p {
  color: var(--on-surface-variant);
  margin-top: 8px;
}

/* Dashboard */

.dashboard-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.dashboard-card {
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s;
  display: block;
}

.dashboard-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  text-decoration: none;
}

.dashboard-card .material-icons {
  font-size: 40px;
  color: var(--primary);
  margin-bottom: 12px;
}

.dashboard-card h2 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.dashboard-card p {
  color: var(--on-surface-variant);
  font-size: 0.9rem;
}

/* Forms */

.form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-card {
  padding: 28px;
  max-width: 720px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--on-surface-variant);
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 12px 14px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--on-surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-container);
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  padding-top: 8px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover:not(:disabled) {
  background: #45c078;
  text-decoration: none;
  color: var(--on-primary);
}

.btn-outlined {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--outline);
}

.btn-outlined:hover:not(:disabled) {
  background: var(--surface-container);
  text-decoration: none;
}

.btn-icon {
  padding: 8px;
  border-radius: 50%;
  background: transparent;
  color: var(--on-surface-variant);
  border: none;
}

.btn-icon:hover {
  background: var(--surface-container);
  color: var(--primary);
}

.btn-danger:hover {
  background: var(--error-container);
  color: var(--error);
}

.btn-full {
  width: 100%;
}

.btn .material-icons {
  font-size: 20px;
}

/* Toolbar */

.toolbar {
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.filter-field label {
  font-size: 0.8rem;
}

.filter-field select {
  padding: 10px 12px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  background: #fff;
  color: var(--on-surface);
  width: 100%;
}

.filter-field select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-container);
}

.filters-actions {
  display: flex;
  justify-content: flex-end;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.85rem;
}

.user-cell {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-width: 200px;
}

.user-cell-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  min-width: 0;
}

.user-cell-name {
  font-weight: 500;
  white-space: nowrap;
}

.user-cell-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.grant-admin-btn {
  border-color: #c45c26;
  color: #c45c26;
}

.grant-admin-btn:hover:not(:disabled) {
  background: #fff3e8;
  color: #a34a1c;
}

.profile-btn {
  flex-shrink: 0;
}

.profile-btn .material-icons {
  font-size: 16px;
}

.badge-yes {
  background: #d4edda;
  color: var(--success);
}

.badge-no {
  background: var(--error-container);
  color: var(--error);
}

.text-muted {
  color: var(--on-surface-variant);
  font-size: 0.85rem;
}

/* Profile */

.profile-page {
  max-width: 960px;
}

.profile-header {
  padding: 28px;
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
}

.profile-header-main {
  display: flex;
  align-items: center;
  gap: 20px;
}

.profile-header h1 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-top: 4px;
}

.profile-meta {
  color: var(--on-surface-variant);
  font-size: 0.9rem;
  margin-top: 8px;
}

.profile-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 72px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--primary);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  margin-top: 4px;
}

.profile-section {
  padding: 24px;
  margin-bottom: 16px;
}

.profile-section-title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--on-surface);
}

.profile-subtitle {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  margin: 16px 0 8px;
}

.profile-text {
  line-height: 1.6;
  white-space: pre-wrap;
}

.profile-empty {
  color: var(--on-surface-variant);
  font-size: 0.9rem;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip-item {
  font-size: 0.8rem;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.social-link {
  text-decoration: none;
}

.social-link:hover {
  background: var(--primary-container);
  color: var(--primary);
}

.avatar-circle-lg {
  width: 72px;
  height: 72px;
  min-width: 72px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-pre-sm {
  font-size: 0.8rem;
  max-height: 280px;
  overflow: auto;
}

/* Profile info cards */

.card-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-card {
  background: var(--surface-container);
  border: 1px solid var(--surface-container-high);
  border-radius: 10px;
  padding: 14px 16px;
}

.info-card-title {
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0 0 6px;
}

.info-card-sub {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  margin: 0 0 4px;
}

.info-card-meta {
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  margin: 0;
}

.kv-grid {
  margin: 0;
}

.metric-sublist {
  margin: 8px 0 0;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--on-surface-variant);
}

.video-card-footer {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 12px;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  background: #fff;
  border-top: 1px solid var(--surface-container-high);
}

/* Athlete video cards */

.video-cards-row {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 2px 12px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.video-card {
  flex: 0 0 260px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--surface-container-high);
  border-radius: var(--radius);
  background: var(--surface-container);
  padding: 0;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: box-shadow 0.15s, transform 0.15s;
  overflow: hidden;
}

.video-card:hover:not(:disabled) {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.video-card-disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.video-card-type {
  display: block;
  padding: 10px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--on-surface);
  text-transform: capitalize;
  border-bottom: 1px solid var(--surface-container-high);
  background: #fff;
}

.video-card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #111;
  overflow: hidden;
}

.video-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-card-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  background: var(--surface-container-high);
}

.video-card-img-placeholder .material-icons {
  font-size: 40px;
}

.video-card-play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 48px;
  height: 48px;
  font-size: 48px !important;
  color: #fff;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.45));
  pointer-events: none;
}

/* Video player modal */

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.video-modal.hidden {
  display: none !important;
}

.video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.video-modal-content {
  position: relative;
  width: 100%;
  max-width: 900px;
  padding: 0;
  overflow: hidden;
  z-index: 1;
}

.video-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--surface-container-high);
}

.video-modal-header h3 {
  font-size: 1rem;
  font-weight: 500;
  margin: 0;
  text-transform: capitalize;
}

.video-modal-player-wrap {
  background: #000;
}

#athlete-video-player {
  width: 100%;
  max-height: 70vh;
  display: block;
  background: #000;
}

.th-hint {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 400;
}

.editable-cell {
  min-width: 130px;
}

.cell-select {
  appearance: none;
  padding: 4px 28px 4px 10px;
  border: 1px dashed var(--primary);
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: inherit;
  background: var(--primary-container) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%2349454f'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E") no-repeat right 8px center;
  color: var(--on-surface);
  cursor: pointer;
  transition: border-style 0.15s, opacity 0.15s;
}

.cell-select:hover:not(:disabled) {
  border-style: solid;
  background-color: #fff;
}

.cell-select:disabled,
.cell-toggle:disabled {
  opacity: 0.6;
  cursor: wait;
}

.cell-select.is-updating,
.cell-toggle.is-updating {
  opacity: 0.6;
}

.cell-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: inherit;
  border: 1px dashed var(--primary);
  cursor: pointer;
  transition: border-style 0.15s, opacity 0.15s;
}

.cell-toggle:hover:not(:disabled) {
  border-style: solid;
  filter: brightness(0.97);
}

.cell-toggle::after {
  content: '↻';
  font-size: 0.7rem;
  opacity: 0.7;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-container);
  border-radius: 28px;
  padding: 4px 16px;
}

.search-box .material-icons {
  color: var(--on-surface-variant);
  font-size: 22px;
}

.search-box input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 0;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
}

/* Table */

.table-card {
  overflow: hidden;
  margin-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
}

.table-scroll {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--surface-container-high);
}

.data-table th {
  background: var(--surface-container);
  font-weight: 500;
  color: var(--on-surface-variant);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background: var(--surface-container);
}

.data-table code {
  font-size: 0.85em;
  background: var(--surface-container);
  padding: 2px 6px;
  border-radius: 4px;
}

.actions-cell {
  white-space: nowrap;
}

/* Avatar */

.avatar {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.avatar-circle {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  background: var(--primary-container);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Badges */

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--surface-container-high);
  color: var(--on-surface-variant);
}

.badge-published {
  background: #d4edda;
  color: var(--success);
}

.badge-draft {
  background: #fff3cd;
  color: #856404;
}

/* Detail */

.detail-card {
  padding: 28px;
}

.detail-list {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px 16px;
  margin-bottom: 24px;
}

.detail-list dt {
  font-weight: 500;
  color: var(--on-surface-variant);
  font-size: 0.85rem;
}

.detail-list dd {
  margin: 0;
}

.article-content h2 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--on-surface-variant);
}

.content-pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--surface-container);
  padding: 20px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
  overflow-x: auto;
}

/* States */

.state-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  color: var(--on-surface-variant);
  gap: 12px;
}

.state-icon {
  font-size: 48px !important;
  opacity: 0.5;
}

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
}

.alert-error {
  background: var(--error-container);
  color: var(--error);
}

.hidden {
  display: none !important;
}

/* Pagination */

.pagination-footer {
  background: #fff;
  border: 1px solid var(--surface-container-high);
  border-top: 1px solid var(--surface-container-high);
  border-radius: 0 0 var(--radius) var(--radius);
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.pagination-footer .pagination {
  padding: 14px 16px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.pagination-info {
  color: var(--on-surface-variant);
  font-size: 0.9rem;
}

/* Spinner */

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-lg {
  width: 32px;
  height: 32px;
  border-color: var(--surface-container-high);
  border-top-color: var(--primary);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */

@media (max-width: 768px) {
  .sidebar {
    width: 72px;
  }

  .sidebar-brand span:not(.material-icons),
  .nav-link span:not(.material-icons) {
    display: none;
  }

  .sidebar-brand {
    justify-content: center;
    padding: 20px 12px;
  }

  .nav-link {
    justify-content: center;
    padding: 12px;
  }

  .main-content {
    margin-left: 72px;
    padding: 20px 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}