.section {
  margin-bottom: 36px;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--md-on-surface);
}

.section-header a {
  font-size: 0.875rem;
  font-weight: 600;
}

.resource-card {
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  overflow: hidden;
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: border-color 200ms ease;

  /* Fallback subject custom properties */
  --art-c1: #CFD8DC;
  --art-c2: #90A4AE;
  --art-c3: #546E7A;
  --art-c4: #37474F;
  --subject-badge-bg: #ECEFF1;
  --subject-badge-fg: #546E7A;
}

.resource-card:hover {
  border-color: var(--md-outline);
  text-decoration: none;
  color: inherit;
}

.resource-card-art {
  position: relative;
  height: 120px;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 10px 12px;
}

.resource-card-art svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.resource-card-type-pill {
  position: absolute;
  top: 10px;
  left: 12px;
  z-index: 2;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--art-c4);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  line-height: 1.5;
}

.resource-card-art-icon {
  position: absolute;
  bottom: 10px;
  right: 12px;
  z-index: 2;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--art-c4);
  border: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 18px !important;
  font-variation-settings: 'FILL' 1;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

[data-theme="dark"] .resource-card-art-icon {
  background: rgba(15, 23, 42, 0.85);
  color: var(--art-c1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.resource-card-info {
  padding: 14px 16px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.resource-card-subject-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--md-radius-full);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
  background: var(--subject-badge-bg, var(--md-surface-container));
  color: var(--subject-badge-fg, var(--md-on-surface-variant));
  width: fit-content;
}

.resource-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 5px;
  color: var(--md-on-surface);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.resource-card-badge {
  display: none;
}

.resource-card-meta {
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 12px;
}

.resource-card-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
}

.resource-card-download .material-symbols-outlined {
  font-size: 18px;
}

.subject-physics {
  --art-c1: #BBDEFB;
  --art-c2: #64B5F6;
  --art-c3: #1E88E5;
  --art-c4: #0D47A1;
  --subject-badge-bg: #E3F2FD;
  --subject-badge-fg: #0D47A1;
}

.subject-chemistry {
  --art-c1: #C8E6C9;
  --art-c2: #66BB6A;
  --art-c3: #2E7D32;
  --art-c4: #1B5E20;
  --subject-badge-bg: #E8F5E9;
  --subject-badge-fg: #1B5E20;
}

.subject-mathematics,
.subject-math {
  --art-c1: #FFE0B2;
  --art-c2: #FFA726;
  --art-c3: #E65100;
  --art-c4: #BF360C;
  --subject-badge-bg: #FFF3E0;
  --subject-badge-fg: #BF360C;
}

.subject-biology {
  --art-c1: #E1BEE7;
  --art-c2: #AB47BC;
  --art-c3: #7B1FA2;
  --art-c4: #4A148C;
  --subject-badge-bg: #F3E5F5;
  --subject-badge-fg: #4A148C;
}

.subject-english {
  --art-c1: #FFCDD2;
  --art-c2: #EF5350;
  --art-c3: #C62828;
  --art-c4: #B71C1C;
  --subject-badge-bg: #FFEBEE;
  --subject-badge-fg: #B71C1C;
}

.subject-nepali {
  --art-c1: #B3E5FC;
  --art-c2: #29B6F6;
  --art-c3: #0277BD;
  --art-c4: #01579B;
  --subject-badge-bg: #E1F5FE;
  --subject-badge-fg: #01579B;
}

.subject-computer-science {
  --art-c1: #B2EBF2;
  --art-c2: #26C6DA;
  --art-c3: #00838F;
  --art-c4: #006064;
  --subject-badge-bg: #E0F7FA;
  --subject-badge-fg: #006064;
}

.subject-economics {
  --art-c1: #FFE082;
  --art-c2: #FFCA28;
  --art-c3: #F9A825;
  --art-c4: #F57F17;
  --subject-badge-bg: #FFE082;
  --subject-badge-fg: #D84315;
}

.subject-accountancy {
  --art-c1: #B2DFDB;
  --art-c2: #26A69A;
  --art-c3: #00796B;
  --art-c4: #004D40;
  --subject-badge-bg: #E0F2F1;
  --subject-badge-fg: #004D40;
}

.subject-general {
  --art-c1: #CFD8DC;
  --art-c2: #90A4AE;
  --art-c3: #546E7A;
  --art-c4: #37474F;
  --subject-badge-bg: #ECEFF1;
  --subject-badge-fg: #546E7A;
}

.subject-exam-tips {
  --art-c1: #F8BBD0;
  --art-c2: #EC407A;
  --art-c3: #C2185B;
  --art-c4: #880E4F;
  --subject-badge-bg: #FCE4EC;
  --subject-badge-fg: #C2185B;
}


.hscroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 16px;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  max-width: 100%;
}

.hscroll::-webkit-scrollbar {
  display: none;
}

.hscroll .resource-card {
  min-width: 260px;
  max-width: 300px;
  flex-shrink: 0;
  scroll-snap-align: start;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

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

.post-card {
  padding: 20px;
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-lg);
  transition: border-color 150ms ease, box-shadow 150ms ease;
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  border-color: var(--md-outline);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.activity-item {
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  background: transparent;
  border-bottom: 1px solid var(--md-outline-variant, #e2e8f0);
}

.activity-item:first-child {
  padding-top: 8px;
}

.activity-item:last-child {
  border-bottom: none;
  padding-bottom: 8px;
}

.post-card-header,
.activity-item-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  position: relative;
}

.post-card-avatar,
.act-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--md-primary);
  color: var(--md-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8125rem;
  flex-shrink: 0;
  border: none;
}

.post-card-avatar img,
.act-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-card-avatar .contributor-avatar-letter,
.act-avatar span {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--md-on-primary);
  text-transform: uppercase;
}

.post-card-meta,
.act-meta {
  flex: 1;
  min-width: 0;
}

.post-card-meta-line,
.act-meta-line {
  font-size: 0.9375rem;
  color: var(--md-on-surface-variant);
  line-height: 1.5;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.post-card-meta-line strong,
.act-username {
  color: var(--md-on-surface);
  font-weight: 600;
  cursor: pointer;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  padding: 1.5px 6px;
  border-radius: var(--md-radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  background: var(--md-primary-container, #dbeafe);
  color: var(--md-on-primary-container, #004ac6);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  vertical-align: middle;
}

/* Role badge icons — verified ticks, moderator shields, admin crown */
.role-badge {
  display: inline-flex;
  align-items: center;
  vertical-align: middle;
  margin-left: 3px;
  line-height: 1;
}
.role-badge .material-symbols-outlined {
  font-size: 16px;
}
.role-badge-admin { background: rgba(245,158,11,0.15); border-radius: 100px; padding: 1px 4px 1px 2px; }
.role-badge-admin .material-symbols-outlined { color: #D97706; }
.role-badge-bot { background: rgba(124,77,255,0.15); border-radius: 100px; padding: 1px 4px 1px 2px; }
.role-badge-bot .material-symbols-outlined { color: #7C4DFF; }
[data-theme="dark"] .role-badge-bot { background: rgba(124,77,255,0.25); }
[data-theme="dark"] .role-badge-bot .material-symbols-outlined { color: #B388FF; }
.fp-mention { color: var(--md-primary, #1B6EF3); font-weight: 500; text-decoration: none; cursor: pointer; border-radius: 3px; padding: 0 1px; }
.fp-mention:hover { text-decoration: underline; }
.role-badge-mod-1 { background: rgba(27,154,240,0.12); border-radius: 100px; padding: 1px 4px 1px 2px; }
.role-badge-mod-1 .material-symbols-outlined { color: #1B9AF0; }
.role-badge-mod-2 { background: rgba(0,137,123,0.12); border-radius: 100px; padding: 1px 4px 1px 2px; }
.role-badge-mod-2 .material-symbols-outlined { color: #00897B; }
.role-badge-mod-3 { background: rgba(123,31,162,0.12); border-radius: 100px; padding: 1px 4px 1px 2px; }
.role-badge-mod-3 .material-symbols-outlined { color: #7B1FA2; }
.role-badge-verified-1 .material-symbols-outlined { color: #1B9AF0; }
.role-badge-verified-2 .material-symbols-outlined { color: #2E7D32; }
.role-badge-verified-3 .material-symbols-outlined { color: #D97706; }
.role-badge-verified-4 .material-symbols-outlined { color: #1a1a1a; }
[data-theme="dark"] .role-badge-admin { background: rgba(245,158,11,0.25); }
[data-theme="dark"] .role-badge-admin .material-symbols-outlined { color: #FBBF24; }
[data-theme="dark"] .role-badge-mod-1 { background: rgba(27,154,240,0.2); }
[data-theme="dark"] .role-badge-mod-2 { background: rgba(0,137,123,0.2); }
[data-theme="dark"] .role-badge-mod-3 { background: rgba(123,31,162,0.2); }
[data-theme="dark"] .role-badge-verified-3 .material-symbols-outlined { color: #FBBF24; }
[data-theme="dark"] .role-badge-verified-4 .material-symbols-outlined { color: #e0e0e0; }

/* Achievement badges — small pill with icon */
.achievement-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--md-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  vertical-align: middle;
}
.achievement-badge .material-symbols-outlined {
  font-size: 12px;
}
.achievement-badge.top_contributor { background: rgba(245,158,11,0.12); color: #F59E0B; }
.achievement-badge.helpful { background: rgba(236,64,122,0.12); color: #EC407A; }
.achievement-badge.scholar { background: rgba(27,154,240,0.12); color: #1B9AF0; }
.achievement-badge.streak { background: rgba(255,109,0,0.12); color: #FF6D00; }
.achievement-badge.first_post { background: rgba(46,125,50,0.12); color: #2E7D32; }
.achievement-badge.100_likes { background: rgba(229,57,53,0.12); color: #E53935; }
.achievement-badge.bookworm { background: rgba(0,137,123,0.12); color: #00897B; }
.achievement-badge.problem_solver { background: rgba(249,168,37,0.12); color: #F9A825; }
[data-theme="dark"] .achievement-badge.top_contributor { background: rgba(245,158,11,0.2); }
[data-theme="dark"] .achievement-badge.helpful { background: rgba(236,64,122,0.2); }
[data-theme="dark"] .achievement-badge.scholar { background: rgba(27,154,240,0.2); }
[data-theme="dark"] .achievement-badge.streak { background: rgba(255,109,0,0.2); }
[data-theme="dark"] .achievement-badge.first_post { background: rgba(46,125,50,0.2); }
[data-theme="dark"] .achievement-badge.100_likes { background: rgba(229,57,53,0.2); }
[data-theme="dark"] .achievement-badge.bookworm { background: rgba(0,137,123,0.2); }
[data-theme="dark"] .achievement-badge.problem_solver { background: rgba(249,168,37,0.2); }

.act-action-text {
  color: var(--md-on-surface-variant);
}

.post-card-category,
.post-card-category-link,
.act-category {
  display: inline-block;
  padding: 2.5px 10px;
  border-radius: var(--md-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.25;
  text-transform: capitalize;
  text-decoration: none;
  background-color: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  border: none;
  transition: background-color 150ms ease;
}

.post-card-category-link:hover {
  background-color: var(--md-surface-container-high);
  text-decoration: none;
}

.post-card-time,
.act-time {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  opacity: 0.85;
  margin-top: 3px;
}

.post-card h3,
.act-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin: 0 0 6px;
  line-height: 1.45;
}

.post-card h3 a,
.act-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s;
}

.post-card h3 a:hover,
.act-title a:hover {
  color: var(--md-primary);
}

.post-card-content,
.act-preview {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--md-on-surface-variant);
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.act-resource-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 12px 0 16px;
  transition: all 0.2s ease;
}

.act-resource-card:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-primary);
}

.act-resource-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--md-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.act-resource-icon .material-symbols-outlined {
  font-size: 22px;
  color: var(--md-primary);
}

.act-resource-info {
  flex: 1;
  min-width: 0;
}

.act-resource-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.act-resource-name a {
  color: inherit;
  text-decoration: none;
}

.act-resource-name a:hover {
  color: var(--md-primary);
}

.act-resource-meta {
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
}

.post-card-actions,
.act-footer {
  display: flex;
  align-items: center;
  gap: 4px;
}

.post-card-actions button,
.post-card-actions a,
.act-btn-stat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--md-radius-sm);
  transition: background 150ms ease, color 150ms ease;
  text-decoration: none !important;
  font-family: inherit;
  outline: none;
}

.post-card-actions button:hover,
.post-card-actions a:hover,
.act-btn-stat:hover {
  background: var(--md-surface-container-high);
  color: var(--md-primary);
  text-decoration: none !important;
}

.post-card-actions button.liked,
.act-btn-stat[data-liked="true"] {
  color: var(--md-primary);
}

.post-card-actions button .material-symbols-outlined,
.post-card-actions a .material-symbols-outlined,
.act-btn-stat .material-symbols-outlined {
  font-size: 18px;
}

.filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 0 12px;
  scrollbar-width: thin;
}

.filter-bar .md-chip {
  white-space: nowrap;
  flex-shrink: 0;
}

.md-btn-icon.has-filters {
  color: var(--md-primary);
}

.post-meta-line {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.post-meta-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  flex-wrap: wrap;
}

.dot-sep {
  opacity: 0.3;
}

.md-btn .material-symbols-outlined {
  font-size: 18px;
}

.icon-sm .material-symbols-outlined,
.material-symbols-outlined.icon-sm {
  font-size: 14px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 4px 8px;
  margin: -4px -8px;
  border-radius: var(--md-radius-sm);
  transition: background var(--md-transition);
}

.back-link:hover {
  background: var(--md-surface-variant);
  text-decoration: none;
  color: var(--md-on-surface);
}

.back-link .material-symbols-outlined {
  font-size: 20px;
}

.filter-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: md-fade-in 150ms ease;
}

.filter-dialog {
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-radius-xl);
  padding: 24px;
  max-width: 420px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--md-elevation-3);
  animation: md-scale-in 200ms ease;
}

.filter-dialog h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.filter-section {
  margin-bottom: 20px;
}

.filter-section:last-of-type {
  margin-bottom: 0;
}

.filter-section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-on-surface-variant);
  margin-bottom: 8px;
}

.filter-section .chip-group {
  gap: 8px;
}

.filter-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 24px;
}

.search-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 8px 2px 10px;
  border-radius: var(--md-radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 150ms ease;
}

.search-filter-chip:hover {
  opacity: 0.85;
  text-decoration: none;
}

.search-filter-chip .material-symbols-outlined {
  font-size: 14px;
}

.search-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--md-outline-variant);
  overflow-x: auto;
  margin-bottom: 16px;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--md-surface-container);
  border-radius: var(--md-radius-xl);
  padding: 4px 16px;
  border: 1px solid var(--md-outline-variant);
  transition: border-color var(--md-transition);
}

.search-bar:focus-within {
  border-color: var(--md-primary);
  border-width: 2px;
}

.search-bar input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 1rem;
  padding: 12px 0;
}

.search-bar input::placeholder {
  color: var(--md-on-surface-variant);
}

.search-bar .material-symbols-outlined {
  color: var(--md-on-surface-variant);
}

.md-input {
  width: 100%;
  padding: 15px 16px;
  border-radius: var(--md-radius-sm);
  border: 1.5px solid var(--md-outline-variant);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 1rem;
  transition: border-color var(--md-transition), box-shadow var(--md-transition);
  outline: none;
  box-shadow: none;
}

.md-input:hover {
  border-color: var(--md-outline);
}

.md-input:focus {
  border-color: var(--md-primary);
  outline: none;
}

.md-input::placeholder {
  color: var(--md-on-surface-variant);
}

.md-textarea {
  width: 100%;
  padding: 15px 16px;
  border-radius: var(--md-radius-sm);
  border: 1.5px solid var(--md-outline-variant);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 1rem;
  resize: vertical;
  min-height: 120px;
  transition: border-color var(--md-transition), box-shadow var(--md-transition);
  outline: none;
  box-shadow: none;
}

.md-textarea:hover {
  border-color: var(--md-outline);
}

.md-textarea:focus {
  border-color: var(--md-primary);
  outline: none;
}

.md-textarea::placeholder {
  color: var(--md-on-surface-variant);
}

.md-select {
  width: 100%;
  padding: 15px 16px;
  padding-right: 40px;
  border-radius: var(--md-radius-sm);
  border: 1.5px solid var(--md-outline-variant);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 1rem;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%2374777F' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color var(--md-transition), box-shadow var(--md-transition);
  box-shadow: none;
}

.md-select:hover {
  border-color: var(--md-outline);
}

.md-select:focus {
  border-color: var(--md-primary);
  outline: none;
}

.login-container {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.login-card {
  width: 100%;
  max-width: 440px;
  text-align: center;
}

.login-card .login-logo {
  margin-bottom: 24px;
}

.login-card .login-logo svg {
  width: 64px;
  height: 64px;
}

.login-card h1 {
  margin-bottom: 4px;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--md-on-surface);
}

.login-card .login-subtitle {
  color: var(--md-on-surface-variant);
  margin-bottom: 32px;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--md-radius-full);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--md-transition);
}

.google-btn:hover {
  background: var(--md-surface-container);
}

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

.google-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ──────────────────────────────────────────────────────────────────
   Login revamp — split-screen brand panel + form panel
   Clean professional two-column layout, inspired by modern SaaS.
   ────────────────────────────────────────────────────────────────── */

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #f5f6fa 0%, #ebeef5 100%);
}

[data-theme="dark"] .auth-shell {
  background: linear-gradient(135deg, #0a0a0c 0%, #16161a 100%);
}

.auth-card-outer {
  width: 100%;
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1fr;
  background: #ffffff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow:
    0 1px 2px rgba(15, 23, 42, 0.04),
    0 8px 24px rgba(15, 23, 42, 0.06),
    0 24px 48px rgba(15, 23, 42, 0.04);
  min-height: 600px;
}

[data-theme="dark"] .auth-card-outer {
  background: #131316;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 8px 24px rgba(0, 0, 0, 0.4),
    0 24px 48px rgba(0, 0, 0, 0.3);
}

/* ── Form panel (left) ── */
.auth-form-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 40px 56px;
  background: #ffffff;
}

[data-theme="dark"] .auth-form-panel {
  background: #131316;
}

.auth-form-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--md-on-surface);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  width: fit-content;
}
.auth-form-logo:hover { text-decoration: none; color: var(--md-on-surface); }

.auth-form-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  max-width: 420px;
  width: 100%;
  margin: 8px auto 32px;
  padding: 16px 0;
}

.auth-form-head {
  margin-bottom: 32px;
}
.auth-form-head h1 {
  margin: 0 0 8px;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--md-on-surface);
  line-height: 1.1;
}
.auth-form-head p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--md-on-surface-variant);
  line-height: 1.5;
}

.auth-form { display: flex; flex-direction: column; gap: 18px; }

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.auth-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-on-surface);
  letter-spacing: -0.005em;
}
.auth-field input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid #e5e7eb;
  border-radius: 10px;
  background: #ffffff;
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 0.9375rem;
  line-height: 1.4;
  outline: none;
  transition: border-color var(--md-transition), box-shadow var(--md-transition);
  height: 48px;
  box-sizing: border-box;
}
.auth-field input::placeholder { color: #9ca3af; }
[data-theme="dark"] .auth-field input {
  background: #1c1c20;
  border-color: #2a2a30;
}
[data-theme="dark"] .auth-field input::placeholder { color: #6b6b75; }
.auth-field input:hover { border-color: #c7c9d1; }
[data-theme="dark"] .auth-field input:hover { border-color: #3a3a44; }
.auth-field input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--md-primary) 14%, transparent);
}
.auth-field input.auth-code-input {
  text-align: center;
  letter-spacing: 0.5em;
  font-size: 1.25rem;
  font-weight: 700;
}

.auth-input-wrap {
  position: relative;
}
.auth-input-wrap input {
  padding-right: 48px;
}
.auth-input-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #9ca3af;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--md-transition);
}
.auth-input-toggle:hover { color: var(--md-on-surface); }
.auth-input-toggle .material-symbols-outlined { font-size: 20px !important; }

.auth-error {
  color: var(--md-error);
  font-size: 0.8125rem;
  text-align: left;
  margin: -4px 0 0;
  min-height: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.auth-error:empty { display: none; }

.auth-btn-primary {
  width: 100%;
  padding: 13px 20px;
  border-radius: 10px;
  border: none;
  background: var(--md-primary);
  color: var(--md-on-primary);
  font-family: var(--md-font);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--md-transition);
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 6px;
}
.auth-btn-primary:hover:not(:disabled) {
  background: color-mix(in srgb, var(--md-primary) 90%, #000);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--md-primary) 30%, transparent);
}
.auth-btn-primary:active:not(:disabled) { transform: scale(0.99); }
.auth-btn-primary:disabled { opacity: 0.7; cursor: not-allowed; }

.auth-btn-secondary-full {
  width: 100%;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1.5px solid #e5e7eb;
  background: transparent;
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--md-transition);
  min-height: 44px;
}
.auth-btn-secondary-full:hover { background: #f9fafb; border-color: #c7c9d1; }
[data-theme="dark"] .auth-btn-secondary-full { border-color: #2a2a30; }
[data-theme="dark"] .auth-btn-secondary-full:hover { background: #1c1c20; border-color: #3a3a44; }

.auth-divider-text {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 14px;
  color: var(--md-on-surface-variant);
  font-size: 0.8125rem;
}
.auth-divider-text::before,
.auth-divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #e5e7eb;
}
[data-theme="dark"] .auth-divider-text::before,
[data-theme="dark"] .auth-divider-text::after { background: #2a2a30; }

.auth-social-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 22px;
}

.auth-btn-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 11px 16px;
  border-radius: 10px;
  border: 1.5px solid #e5e7eb;
  background: #ffffff;
  color: var(--md-on-surface);
  font-family: var(--md-font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--md-transition);
  min-height: 48px;
  text-decoration: none;
}
.auth-btn-social:hover {
  background: #f9fafb;
  border-color: #c7c9d1;
  text-decoration: none;
}
[data-theme="dark"] .auth-btn-social { background: #1c1c20; border-color: #2a2a30; }
[data-theme="dark"] .auth-btn-social:hover { background: #232328; border-color: #3a3a44; }

.auth-form-foot {
  margin: 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}
.auth-form-link {
  background: none;
  border: none;
  color: var(--md-primary);
  font-family: var(--md-font);
  font-size: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  transition: opacity var(--md-transition);
}
.auth-form-link:hover { opacity: 0.8; text-decoration: underline; }
.auth-form-link:disabled { color: var(--md-on-surface-variant); cursor: not-allowed; text-decoration: none; }

.auth-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--md-on-surface-variant);
  font-family: var(--md-font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 10px 6px 8px;
  border-radius: 8px;
  margin-bottom: 16px;
  align-self: flex-start;
  transition: background var(--md-transition), color var(--md-transition);
}
.auth-back:hover { background: #f3f4f6; color: var(--md-on-surface); }
[data-theme="dark"] .auth-back:hover { background: #1c1c20; }
.auth-back .material-symbols-outlined { font-size: 18px !important; }

.auth-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: authSpin 0.7s linear infinite;
}

.auth-panel { animation: authFadeIn 250ms ease-out; }

@keyframes authSpin { to { transform: rotate(360deg); } }
@keyframes authFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Brand panel (right) ── */
.auth-brand-panel {
  position: relative;
  display: none;
  overflow: hidden;
  background: linear-gradient(140deg, #1d4ed8 0%, #4338ca 45%, #6d28d9 100%);
  color: #ffffff;
  padding: 56px 48px;
}

.auth-brand-decor {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.10) 0%, transparent 35%);
  pointer-events: none;
}

.auth-brand-content {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  gap: 28px;
}

.auth-brand-title {
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin: 0;
  max-width: 480px;
}
.auth-brand-sub {
  font-size: 1rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.80);
  margin: 0;
  max-width: 440px;
}

/* ── Dashboard mockup (HTML/CSS) ── */
.auth-dashboard-mock {
  background: #ffffff;
  border-radius: 14px;
  padding: 18px;
  color: #0b1c30;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.06),
    0 12px 32px rgba(0, 0, 0, 0.12),
    0 24px 48px rgba(0, 0, 0, 0.08);
  margin-top: 8px;
  max-width: 460px;
}

.adm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}
.adm-tile {
  position: relative;
  padding: 12px 14px;
  border-radius: 10px;
  background: #f8f9fb;
  overflow: hidden;
  min-height: 78px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.adm-tile--blue { background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%); }
.adm-tile--green { background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%); }
.adm-tile--purple { background: linear-gradient(135deg, #faf5ff 0%, #ede9fe 100%); }
.adm-tile--chart { grid-column: 1 / -1; min-height: 90px; }
.adm-tile-label {
  font-size: 0.6875rem;
  color: #6b7280;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.adm-tile-num {
  font-size: 1.375rem;
  font-weight: 700;
  color: #0b1c30;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.adm-tile-delta {
  font-size: 0.6875rem;
  font-weight: 500;
}
.adm-tile-delta--up { color: #059669; }
.adm-spark {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50px;
  width: 100%;
  display: block;
}

.adm-list {
  background: #ffffff;
  border: 1px solid #f0f1f5;
  border-radius: 10px;
  padding: 8px;
}
.adm-list-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 8px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.adm-list-head .material-symbols-outlined {
  font-size: 16px !important;
  color: #9ca3af;
}
.adm-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.15s;
}
.adm-row + .adm-row { border-top: 1px solid #f3f4f6; }
.adm-row-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.adm-row-icon--physics { background: #dbeafe; color: #1d4ed8; }
.adm-row-icon--math { background: #ffedd5; color: #c2410c; }
.adm-row-icon--forum { background: #ede9fe; color: #6d28d9; }
.adm-row-icon .material-symbols-outlined { font-size: 18px !important; }
.adm-row-text {
  flex: 1;
  min-width: 0;
}
.adm-row-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #0b1c30;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.adm-row-sub {
  font-size: 0.6875rem;
  color: #9ca3af;
  line-height: 1.2;
  margin-top: 2px;
}
.adm-row-pill {
  font-size: 0.625rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: #dbeafe;
  color: #1d4ed8;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.adm-row-pill--forum { background: #ede9fe; color: #6d28d9; }

/* ── Desktop split-screen ── */
@media (min-width: 960px) {
  .auth-card-outer { grid-template-columns: 1fr 1fr; }
  .auth-brand-panel { display: flex; }
  .auth-form-panel { padding: 40px 56px; min-height: 720px; }
}

/* ── Tablet ── */
@media (min-width: 720px) and (max-width: 959px) {
  .auth-form-panel { padding: 32px 40px; }
  .auth-form-content { max-width: 480px; }
  .auth-form-head h1 { font-size: 1.875rem; }
}

/* ── Mobile ── */
@media (max-width: 719px) {
  .auth-shell { padding: 12px; align-items: flex-start; }
  .auth-card-outer {
    border-radius: 16px;
  }
  .auth-form-panel { padding: 28px 20px 20px; }
  .auth-form-content { margin: 16px auto 0; }
  .auth-form-head h1 { font-size: 1.625rem; }
  .auth-social-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .auth-spinner { animation: none !important; }
  .auth-panel { animation: none !important; }
}


.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
}

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

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

.form-error {
  color: var(--md-error);
  font-size: 0.75rem;
  margin-top: 4px;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--md-on-surface-variant);
}

.empty-state .material-symbols-outlined {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  margin-bottom: 8px;
  color: var(--md-on-surface);
}

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

.chip-group .md-chip {
  font-size: 0.8125rem;
  padding: 6px 14px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 20px;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--md-primary);
}

.stat-card .stat-label {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  margin-top: 4px;
}

.admin-layout {
  display: flex;
  min-height: calc(100vh - 64px);
}

.admin-sidebar {
  width: 260px;
  background: var(--md-surface-container);
  padding: 16px 0;
  border-right: 1px solid var(--md-outline-variant);
  flex-shrink: 0;
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
}

.admin-sidebar a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--md-transition);
  text-decoration: none;
}

.admin-sidebar a:hover {
  background: var(--md-surface-variant);
  color: var(--md-on-surface);
  text-decoration: none;
}

.admin-sidebar a.active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  font-weight: 600;
}

.admin-sidebar a .material-symbols-outlined {
  font-size: 20px;
}

.admin-content {
  flex: 1;
  padding: 24px;
  min-width: 0;
}

/* Premium Admin Empty States */
.admin-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 56px 40px;
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: 28px;
  max-width: 520px;
  margin: 48px auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s ease;
}

.admin-empty:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
}

.admin-empty-icon-wrap {
  width: 80px;
  height: 80px;
  border-radius: 24px;
  background: color-mix(in srgb, var(--md-primary) 10%, transparent);
  color: var(--md-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border: 2px solid color-mix(in srgb, var(--md-primary) 20%, transparent);
  box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.admin-empty:hover .admin-empty-icon-wrap {
  transform: scale(1.1) rotate(4deg);
}

.admin-empty-icon-wrap .material-symbols-outlined {
  font-size: 40px;
  font-variation-settings: 'FILL' 1;
}

.admin-empty h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--md-on-surface);
  margin-bottom: 12px;
  margin-top: 0;
  letter-spacing: -0.01em;
}

.admin-empty p {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  max-width: 360px;
  line-height: 1.6;
  margin: 0;
}

.admin-empty-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  margin-top: 24px;
}

.md-table {
  width: 100%;
  border-collapse: collapse;
}

.md-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--md-outline-variant);
}

.md-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--md-outline-variant);
  font-size: 0.875rem;
}

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

.md-table-responsive {
  overflow-x: auto;
}

.pdf-viewer {
  width: 100%;
  min-height: 80vh;
  border: none;
}

.md-switch {
  position: relative;
  width: 52px;
  height: 32px;
  cursor: pointer;
}

.md-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.md-switch .slider {
  position: absolute;
  inset: 0;
  background: var(--md-surface-variant);
  border-radius: 16px;
  transition: background var(--md-transition);
  border: 2px solid var(--md-outline);
}

.md-switch .slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--md-outline);
  border-radius: 50%;
  transition: all var(--md-transition);
}

.md-switch input:checked+.slider {
  background: var(--md-primary);
  border-color: var(--md-primary);
}

.md-switch input:checked+.slider::before {
  transform: translateY(-50%) translateX(20px);
  background: var(--md-on-primary);
}

.shimmer {
  position: relative;
  overflow: hidden;
  background: var(--md-surface-container);
}

.shimmer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--md-surface-container-high), transparent);
  animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

.shimmer-card {
  height: 200px;
  border-radius: var(--md-radius-lg);
}

.shimmer-text {
  height: 16px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.shimmer-text-short {
  height: 16px;
  border-radius: 4px;
  width: 60%;
  margin-bottom: 8px;
}

.shimmer-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.shimmer-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.md-input:invalid:not(:placeholder-shown) {
  border-color: var(--md-error);
}

.md-textarea:invalid:not(:placeholder-shown) {
  border-color: var(--md-error);
}

:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.md-input:focus-visible,
.md-textarea:focus-visible,
.md-select:focus-visible {
  outline: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

.admin-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--md-on-surface);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--md-radius-full);
}

.admin-hamburger:hover {
  background: var(--md-surface-variant);
}

.admin-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
}

.admin-mobile-overlay.active {
  display: block;
}

.admin-mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: var(--md-surface-container);
  z-index: 999;
  padding: 16px 0;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.admin-mobile-nav.active {
  display: block;
  transform: translateX(0);
}

.admin-mobile-nav .mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px 16px;
  border-bottom: 1px solid var(--md-outline-variant);
  margin-bottom: 8px;
}

.admin-mobile-nav .mobile-header a {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--md-primary);
  font-weight: 600;
}

.admin-mobile-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}

.admin-mobile-nav a:hover {
  background: var(--md-surface-variant);
  color: var(--md-on-surface);
}

.admin-mobile-nav a.active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  font-weight: 600;
}

@media (max-width: 768px) {
  .admin-sidebar {
    display: none;
  }

  .admin-hamburger {
    display: inline-flex;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .resource-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .md-topbar {
    padding: 0 8px !important;
    gap: 6px !important;
  }

  .md-topbar-actions {
    gap: 6px !important;
  }

  .md-topbar-brand {
    font-size: 1.125rem !important;
    gap: 6px !important;
  }

  .md-topbar-brand svg {
    width: 24px !important;
    height: 24px !important;
  }

  .md-topbar .md-btn {
    padding: 6px 12px !important;
    min-height: 32px !important;
    font-size: 0.75rem !important;
    white-space: nowrap !important;
  }

  .md-topbar-actions .md-btn-icon {
    width: 32px !important;
    height: 32px !important;
    padding: 4px !important;
  }
}

.follow-btn-inline {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.follow-btn-inline.following {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: 1px solid var(--md-primary);
}

.follow-btn-inline.not-following {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline-variant);
}

.follow-btn-inline:hover {
  opacity: 0.85;
}

.follow-btn-small {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.follow-btn-small.following {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: 1px solid var(--md-primary);
}

.follow-btn-small.not-following {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline-variant);
}

.follow-btn-small:hover {
  opacity: 0.85;
}

.profile-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--md-primary);
  color: var(--md-on-primary);
  font-weight: 700;
  flex-shrink: 0;
  overflow: hidden;
}

.site-main {
  min-height: calc(100vh - 64px - 72px);
  padding-top: 16px;
  padding-bottom: 24px;
}

.site-footer {
  text-align: center;
  padding: 24px 16px 16px;
  color: var(--md-on-surface-variant);
  font-size: 0.75rem;
  background: transparent;
  border-top: 1px solid var(--md-border-subtle, var(--md-outline-variant));
}

.site-footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer-links a {
  color: var(--md-on-surface-variant);
  text-decoration: none;
}

.site-footer-links a:hover {
  text-decoration: underline;
}

.site-footer p {
  margin: 8px 0 0;
}

/* ---- Three-dot Menu ---- */
.more-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  color: var(--md-on-surface-variant);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  line-height: 1;
  flex-shrink: 0;
}
.more-btn:hover {
  background: var(--md-surface-container-high);
}
.more-btn .material-symbols-outlined {
  font-size: 20px;
}

.more-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: 12px;
  min-width: 180px;
  z-index: 100;
  overflow: hidden;
  padding: 4px 0;
  animation: menuFadeIn 0.12s ease-out;
}
@keyframes menuFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.more-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  font-size: 0.875rem;
  color: var(--md-on-surface);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: 'Poppins', sans-serif;
  transition: background 0.12s;
}
.more-menu-item:hover {
  background: var(--md-surface-container-high);
}
.more-menu-item .material-symbols-outlined {
  font-size: 20px;
  color: var(--md-on-surface-variant);
}
.more-menu-item.danger {
  color: var(--md-error, #B3261E);
}
.more-menu-item.danger .material-symbols-outlined {
  color: var(--md-error, #B3261E);
}
.more-menu-divider {
  height: 1px;
  background: var(--md-outline-variant);
  margin: 4px 0;
}

/* Post card more button positioning */
.post-card-header {
  position: relative;
}
.more-menu-wrapper {
  position: relative;
  margin-left: auto;
  align-self: flex-start;
  flex-shrink: 0;
}

/* Bookmark icon active state */
.bookmark-active .material-symbols-outlined {
  font-variation-settings: 'FILL' 1;
  color: var(--md-primary);
}

.liked .material-symbols-outlined {
  font-variation-settings: 'FILL' 1;
}

/* Start a Discussion CTA button */
.forum-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 24px;
  margin-top: 20px;
  border-radius: var(--md-radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: none;
  cursor: pointer;
}
.forum-cta:hover {
  filter: brightness(1.08);
  text-decoration: none;
}

/* ──────────────────────────────────────────────────────────────────────────
   NEW PROFILE DESIGN - MOCKUP INSPIRED CARD & LAYOUT
   ────────────────────────────────────────────────────────────────────────── */

/* Two-column layout grid */
.profile-grid-container {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 16px 48px;
}

.profile-left-col {
  position: sticky;
  top: 80px;
  z-index: 5;
}

/* Compact Premium Card */
.pf-compact-card {
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: 24px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.02);
  overflow: hidden;
  position: relative;
  transition: transform var(--md-transition), box-shadow var(--md-transition);
}

/* ── Profile Banner: NEBian Brand Gradient ── */
/* Performance notes:
   - All animations use transform/opacity only (GPU compositor, no paint)
   - No filter: blur (very expensive on mobile GPUs)
   - Single shine layer (one composited layer) with seamless loop
   - 18s loop so users can't detect start/end
   - will-change applied only on the animating layer
   - Reduced to a single GPU-friendly hue-shift on the gradient
*/
.pf-card-banner {
  height: 180px;
  position: relative;
  overflow: hidden;
  border-radius: 24px 24px 0 0;
  background: var(--md-primary-container);
  isolation: isolate;
}

@media (max-width: 600px) {
  .pf-card-banner { height: 140px; }
}
@media (min-width: 601px) and (max-width: 900px) {
  .pf-card-banner { height: 160px; }
}

/* Base gradient layer — rich brand mesh.
   Seamless 18s loop: 0%/100% states are identical (no visible snap).
   Uses linear-gradient rotation + subtle hue rotation. */
.pf-banner-holo-metallic {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(0, 83, 219, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(79, 70, 229, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(37, 99, 235, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(14, 165, 233, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #004ac6 0%, #2563eb 30%, #4f46e5 55%, #0ea5e9 80%, #004ac6 100%);
  background-size: 200% 200%;
  will-change: background-position, filter;
  animation: bannerGradientDrift 18s linear infinite;
}

/* Mesh grid overlay — static (no animation, no repaint cost) */
.pf-banner-mesh-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.10;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* Animated wave layer — SVG (cheap, GPU-composited) */
.pf-banner-wave-layer {
  position: absolute;
  bottom: -2px;
  left: -10%;
  width: 120%;
  height: 50%;
  pointer-events: none;
  will-change: transform;
  animation: bannerWaveDrift 14s ease-in-out infinite;
}

.pf-banner-wave-layer svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Shimmer sweep — single infinite loop using a wide gradient that
   translates from far right to far left. 0% and 100% positions
   are off-screen so there's no visible "snap" on loop. */
.pf-banner-shine-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0) 35%,
    rgba(255, 255, 255, 0.10) 48%,
    rgba(255, 255, 255, 0.22) 50%,
    rgba(255, 255, 255, 0.10) 52%,
    rgba(255, 255, 255, 0) 65%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 250% 100%;
  background-repeat: no-repeat;
  will-change: background-position;
  animation: bannerShimmer 9s linear infinite;
}

/* Brand watermark text — supports store customizations */
.pf-banner-deco-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--banner-text-size, 2.5rem);
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--banner-text-color, rgba(255, 255, 255, 0.18));
  font-family: 'Poppins', sans-serif;
  text-transform: uppercase;
  pointer-events: none;
  user-select: none;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15), 0 0 40px rgba(255, 255, 255, 0.10);
  white-space: nowrap;
  transition: color 0.3s, text-shadow 0.3s, font-size 0.3s;
  z-index: 2;
}

.pf-banner-deco-text[data-banner-text-color] {
  color: attr(data-banner-text-color color, rgba(255, 255, 255, 0.18));
}

.pf-banner-deco-text[data-banner-text-size] {
  font-size: attr(data-banner-text-size);
}

@media (max-width: 600px) {
  .pf-banner-deco-text {
    font-size: 1.4rem;
    letter-spacing: 0.15em;
  }
}

/* ── Store customization: banner type presets ── */
.pf-card-banner[data-banner-type="gradient-sunset"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(234, 88, 12, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(220, 38, 38, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(251, 146, 60, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(245, 158, 11, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #c2410c 0%, #ea580c 30%, #dc2626 55%, #f59e0b 80%, #c2410c 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-sunset"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(154, 52, 18, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(153, 27, 27, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(251, 146, 60, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(120, 53, 15, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #431407 0%, #7c2d12 25%, #991b1b 50%, #78350f 75%, #431407 100%);
  background-size: 200% 200%;
}

.pf-card-banner[data-banner-type="gradient-aurora"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(16, 185, 129, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(52, 211, 153, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(6, 182, 212, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(34, 197, 94, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #047857 0%, #10b981 30%, #06b6d4 55%, #22c55e 80%, #047857 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-aurora"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(6, 95, 70, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(22, 101, 52, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(8, 145, 178, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(21, 128, 61, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #022c22 0%, #064e3b 25%, #065f46 50%, #0c4a6e 75%, #022c22 100%);
  background-size: 200% 200%;
}

.pf-card-banner[data-banner-type="gradient-royal"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(124, 58, 237, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(168, 85, 247, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(139, 92, 246, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(192, 132, 252, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #6d28d9 0%, #8b5cf6 30%, #a855f7 55%, #c084fc 80%, #6d28d9 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-royal"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(91, 33, 182, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(109, 40, 217, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(139, 92, 246, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(88, 28, 135, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #2e1065 0%, #4c1d95 25%, #5b21b6 50%, #3b0764 75%, #2e1065 100%);
  background-size: 200% 200%;
}

.pf-card-banner[data-banner-type="gradient-ocean"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(2, 132, 199, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(6, 182, 212, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(14, 165, 233, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(8, 145, 178, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #0369a1 0%, #0284c7 30%, #0891b2 55%, #06b6d4 80%, #0369a1 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-ocean"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(7, 89, 133, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(14, 116, 144, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(8, 145, 178, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(3, 105, 161, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #082f49 0%, #0c4a6e 25%, #164e63 50%, #0e4555 75%, #082f49 100%);
  background-size: 200% 200%;
}

.pf-card-banner[data-banner-type="gradient-champion"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(202, 138, 4, 0.60) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(245, 158, 11, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(234, 179, 8, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(251, 191, 36, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #92400e 0%, #b45309 25%, #d97706 50%, #f59e0b 75%, #92400e 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-champion"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(120, 53, 15, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(146, 64, 14, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(202, 138, 4, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(180, 83, 9, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #451a03 0%, #78350f 25%, #92400e 50%, #78350f 75%, #451a03 100%);
  background-size: 200% 200%;
}

/* ── Role-based banner: Admin (gold/amber, crown-worthy) ── */
.pf-card-banner[data-banner-type="gradient-admin"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(202, 138, 4, 0.65) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(245, 158, 11, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(234, 179, 8, 0.40) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(251, 191, 36, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #78350f 0%, #b45309 25%, #d97706 50%, #f59e0b 75%, #78350f 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-admin"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(120, 53, 15, 0.75) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(146, 64, 14, 0.60) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(202, 138, 4, 0.30) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(180, 83, 9, 0.50) 0%, transparent 50%),
    linear-gradient(160deg, #451a03 0%, #78350f 25%, #92400e 50%, #78350f 75%, #451a03 100%);
  background-size: 200% 200%;
}
.pf-card-banner[data-banner-type="gradient-admin"] .pf-banner-deco-text {
  color: var(--banner-text-color, rgba(255, 255, 255, 0.25));
  text-shadow: 0 2px 20px rgba(245, 158, 11, 0.25), 0 0 40px rgba(255, 255, 255, 0.12);
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-admin"] .pf-banner-deco-text {
  color: rgba(251, 191, 36, 0.22);
  text-shadow: 0 2px 20px rgba(251, 191, 36, 0.30), 0 0 40px rgba(245, 158, 11, 0.10);
}

/* ── Role-based banner: Moderator (teal/emerald, shield-worthy) ── */
.pf-card-banner[data-banner-type="gradient-moderator"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(13, 148, 136, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(20, 184, 166, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(45, 212, 191, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(6, 182, 212, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #0f766e 0%, #0d9488 25%, #14b8a6 50%, #06b6d4 75%, #0f766e 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-moderator"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(15, 118, 110, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(20, 83, 45, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(13, 148, 136, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(8, 145, 178, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #042f2e 0%, #134e4a 25%, #115e59 50%, #0c4a6e 75%, #042f2e 100%);
  background-size: 200% 200%;
}
.pf-card-banner[data-banner-type="gradient-moderator"] .pf-banner-deco-text {
  color: var(--banner-text-color, rgba(255, 255, 255, 0.22));
  text-shadow: 0 2px 20px rgba(20, 184, 166, 0.22), 0 0 40px rgba(255, 255, 255, 0.10);
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-moderator"] .pf-banner-deco-text {
  color: rgba(45, 212, 191, 0.20);
  text-shadow: 0 2px 20px rgba(45, 212, 191, 0.25), 0 0 40px rgba(20, 184, 166, 0.08);
}

/* ── Role-based banner: Verified (sky blue, trustworthy) ── */
.pf-card-banner[data-banner-type="gradient-verified"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(2, 132, 199, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(14, 165, 233, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(56, 189, 248, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(6, 182, 212, 0.40) 0%, transparent 50%),
    linear-gradient(160deg, #0369a1 0%, #0284c7 25%, #0ea5e9 50%, #38bdf8 75%, #0369a1 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-verified"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(7, 89, 133, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(14, 116, 144, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(8, 145, 178, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(3, 105, 161, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #082f49 0%, #0c4a6e 25%, #164e63 50%, #0e4555 75%, #082f49 100%);
  background-size: 200% 200%;
}
.pf-card-banner[data-banner-type="gradient-verified"] .pf-banner-deco-text {
  color: var(--banner-text-color, rgba(255, 255, 255, 0.20));
  text-shadow: 0 2px 20px rgba(14, 165, 233, 0.20), 0 0 40px rgba(255, 255, 255, 0.10);
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-verified"] .pf-banner-deco-text {
  color: rgba(125, 211, 252, 0.18);
  text-shadow: 0 2px 20px rgba(56, 189, 248, 0.22), 0 0 40px rgba(14, 165, 233, 0.08);
}

/* ── Role-based banner: AI Bot (deep purple, futuristic) ── */
.pf-card-banner[data-banner-type="gradient-bot"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(124, 77, 255, 0.60) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(149, 117, 255, 0.50) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(179, 136, 255, 0.35) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(98, 0, 234, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #4a148c 0%, #6200ea 25%, #7c4dff 50%, #b388ff 75%, #4a148c 100%);
  background-size: 200% 200%;
  animation: bannerGradientDrift 18s linear infinite;
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-bot"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(74, 20, 140, 0.75) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(98, 0, 234, 0.60) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(124, 77, 255, 0.30) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(149, 117, 255, 0.50) 0%, transparent 50%),
    linear-gradient(160deg, #1a0033 0%, #311b92 25%, #4527a0 50%, #311b92 75%, #1a0033 100%);
  background-size: 200% 200%;
}
.pf-card-banner[data-banner-type="gradient-bot"] .pf-banner-deco-text {
  color: var(--banner-text-color, rgba(255, 255, 255, 0.25));
  text-shadow: 0 2px 20px rgba(124, 77, 255, 0.30), 0 0 40px rgba(179, 136, 255, 0.15);
}
[data-theme="dark"] .pf-card-banner[data-banner-type="gradient-bot"] .pf-banner-deco-text {
  color: rgba(179, 136, 255, 0.22);
  text-shadow: 0 2px 20px rgba(124, 77, 255, 0.35), 0 0 40px rgba(98, 0, 234, 0.10);
}

/* ── Dark mode variant (default brand) ── */
[data-theme="dark"] .pf-banner-holo-metallic {
  background:
    radial-gradient(ellipse 80% 120% at 10% 90%, rgba(0, 62, 168, 0.70) 0%, transparent 60%),
    radial-gradient(ellipse 70% 100% at 85% 20%, rgba(99, 102, 241, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(56, 189, 248, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 90% 90% at 95% 80%, rgba(14, 116, 200, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, #00174b 0%, #003ea8 25%, #1e3a8a 50%, #172554 75%, #0a0f2e 100%);
  background-size: 200% 200%;
}

[data-theme="dark"] .pf-banner-mesh-overlay {
  opacity: 0.05;
}

[data-theme="dark"] .pf-banner-shine-overlay {
  background: linear-gradient(105deg,
    rgba(180, 197, 255, 0) 0%,
    rgba(180, 197, 255, 0) 35%,
    rgba(180, 197, 255, 0.05) 48%,
    rgba(180, 197, 255, 0.13) 50%,
    rgba(180, 197, 255, 0.05) 52%,
    rgba(180, 197, 255, 0) 65%,
    rgba(180, 197, 255, 0) 100%
  );
  background-size: 250% 100%;
  background-repeat: no-repeat;
}

[data-theme="dark"] .pf-banner-deco-text {
  color: rgba(180, 197, 255, 0.16);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3), 0 0 40px rgba(180, 197, 255, 0.08);
}

/* ── Banner animations: seamless infinite loops ── */
/* Gradient drift: 0% and 100% share the same position, so the
   loop boundary is invisible. Linear timing avoids easing pop. */
@keyframes bannerGradientDrift {
  0%   { background-position: 0% 0%; }
  25%  { background-position: 50% 100%; }
  50%  { background-position: 100% 50%; }
  75%  { background-position: 50% 0%; }
  100% { background-position: 0% 0%; }
}

/* Shimmer sweep: gradient wider than the container, so 0% (off-screen right)
   and 100% (off-screen left) are both invisible. Linear timing. */
@keyframes bannerShimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Wave drift: subtle horizontal translation. The 0%/100% rest position
   is identical, with two sin-like motion peaks in between. */
@keyframes bannerWaveDrift {
  0%   { transform: translateX(0%); }
  50%  { transform: translateX(-3%); }
  100% { transform: translateX(0%); }
}

/* ── Mid-range / low-power device optimizations ── */
/* Disable gradient background-position animation (the most expensive
   repaint-heavy animation) on small screens. Keep shimmer (transform-like)
   which is cheap. */
@media (max-width: 600px) {
  .pf-banner-holo-metallic {
    animation: none;
  }
  .pf-banner-shine-overlay {
    animation-duration: 12s;
  }
  .pf-banner-wave-layer {
    height: 40%;
  }
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  .pf-banner-holo-metallic,
  .pf-banner-shine-overlay,
  .pf-banner-wave-layer {
    animation: none !important;
  }
}

/* Wave SVG paths — light mode fills (static, no animation) */
.pf-banner-wave-layer path { transition: fill 0.3s; }

[data-theme="dark"] .pf-banner-wave-layer path:nth-child(1) { fill: rgba(180, 197, 255, 0.05); }
[data-theme="dark"] .pf-banner-wave-layer path:nth-child(2) { fill: rgba(180, 197, 255, 0.03); }

/* Overlapping Circular Avatar Frame */
.pf-avatar-overlap-wrap {
  position: relative;
  margin-top: -52px;
  margin-left: 24px;
  width: 96px;
  height: 96px;
  display: inline-block;
  z-index: 10;
}

.pf-avatar-circle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 4px solid var(--md-surface-container-lowest);
  box-shadow: none;
  overflow: hidden;
  background: var(--md-surface-container-low);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pf-avatar-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pf-avatar-initial {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--md-primary);
  text-transform: uppercase;
}

/* Role Badge on Avatar — admin / moderator / verified */
.pf-avatar-badge {
  position: absolute;
  bottom: 4px;
  right: 4px;
  border-radius: 10px;
  width: 28px;
  height: 28px;
  border: 3px solid var(--md-surface-container-lowest);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 12;
}

.pf-avatar-badge .material-symbols-outlined {
  font-size: 17px !important;
  font-variation-settings: 'FILL' 1, 'wght' 700;
  color: #FFFFFF !important;
}

.pf-avatar-badge-admin,
.pf-avatar-badge-moderator,
.pf-avatar-badge-verified {
  box-shadow: none;
}

/* Camera toggle button positioning */
.pf-avatar-cam {
  position: absolute;
  bottom: 0px;
  left: 0px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: 3.5px solid var(--md-surface-container-lowest);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 12;
  box-shadow: none;
  transition: transform 0.2s;
}

.pf-avatar-cam:hover {
  transform: scale(1.08);
}

.pf-avatar-cam span {
  font-size: 12px !important;
  color: var(--md-on-primary) !important;
}

/* Card content body */
.pf-card-body {
  padding: 24px;
  padding-top: 14px;
}

/* Actions in top-right of body */
.pf-card-top-actions {
  position: absolute;
  top: 188px;
  right: 24px;
  display: flex;
  gap: 12px;
  z-index: 10;
}

.pf-action-icon-btn {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--md-on-surface-variant);
  opacity: 0.6;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, opacity 0.2s;
}

.pf-action-icon-btn:hover {
  background: var(--md-surface-container-high);
  opacity: 1;
}

.pf-action-icon-btn .material-symbols-outlined {
  font-size: 20px;
}

/* User identity labels */
.pf-card-name {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--md-on-surface);
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 6px;
  line-height: 1.25;
}

.pf-card-star {
  font-size: 1.125rem;
  user-select: none;
}

.pf-card-headline {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  margin: 0 0 20px;
  line-height: 1.4;
}

/* Statistics row layout */
.pf-stats-row {
  display: flex;
  gap: 28px;
  margin-bottom: 24px;
}

.pf-stat-col {
  display: flex;
  flex-direction: column;
  gap: 2px;
  cursor: pointer;
}

.pf-stat-col:last-child {
  cursor: default;
}

.pf-stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  text-transform: capitalize;
}

.pf-stat-num {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--md-on-surface);
  line-height: 1.15;
}

/* Action button row layout */
.pf-buttons-row {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.pf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none !important;
  height: 38px;
  box-sizing: border-box;
}

.pf-btn-icon-only {
  width: 38px;
  padding: 0;
}

.pf-btn-outlined {
  border: 1.5px solid var(--md-outline-variant);
  background: transparent;
  color: var(--md-on-surface);
}

.pf-btn-outlined:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-outline);
  color: var(--md-on-surface);
}

.pf-btn-outlined.pf-btn-primary {
  color: var(--md-on-surface);
  border-color: var(--md-outline-variant);
}

.pf-btn-outlined.pf-btn-primary:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-outline);
}

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

.pf-btn-filled:hover {
  filter: brightness(1.08);
  box-shadow: var(--md-elevation-1);
}

.pf-btn .material-symbols-outlined {
  font-size: 18px !important;
  transition: color var(--md-transition), opacity var(--md-transition);
}

/* Neutral grey icons inside outlined buttons */
.pf-btn-outlined .material-symbols-outlined {
  color: var(--md-on-surface-variant) !important;
  opacity: 0.75 !important;
}

/* White icons inside active filled buttons */
.pf-btn-filled .material-symbols-outlined {
  color: var(--md-on-primary) !important;
  opacity: 1 !important;
}

/* Elegant dotted divider styling */
.pf-dotted-divider {
  border-top: 2px dotted var(--md-outline-variant);
  margin: 0 0 24px;
  opacity: 0.5;
}

/* About biography block */
.pf-about-section {
  margin-bottom: 20px;
}

.pf-about-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--md-on-surface);
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pf-about-bio {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--md-on-surface-variant);
  margin: 0;
}

.pf-info-joined {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  margin-top: 10px;
}

.pf-info-joined .material-symbols-outlined {
  font-size: 16px;
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

/* Meta info details block (location, links) */
.pf-meta-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pf-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
}

.pf-meta-row .material-symbols-outlined {
  font-size: 18px !important;
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

.pf-meta-link {
  color: var(--md-primary);
  text-decoration: none;
  font-weight: 500;
}

.pf-meta-link:hover {
  text-decoration: underline;
}

/* Responsive grid media queries */
@media (max-width: 900px) {
  .profile-grid-container {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 8px 0 24px;
  }
  
  .profile-left-col {
    position: static;
  }

  .profile-right-col {
    min-width: 0;
    overflow: hidden;
  }
  
  .pf-compact-card {
    max-width: 100%;
    margin: 0;
    border-radius: 20px;
  }

  /* Remove double card-stack borders and shadows for interactive feeds on mobile */
  .profile-right-col .pf-card {
    border: none;
    box-shadow: none;
    background: transparent;
    padding: 12px 8px;
  }
}

@media (max-width: 600px) {
  .pf-compact-card {
    border-radius: 16px;
  }

  .pf-card-banner {
    height: 130px;
  }

  .pf-avatar-overlap-wrap {
    margin-top: -44px;
    margin-left: 16px;
    width: 80px;
    height: 80px;
  }

  .pf-avatar-cam {
    width: 24px;
    height: 24px;
    border-width: 2px;
  }

  .pf-avatar-cam span {
    font-size: 10px !important;
  }

  .pf-avatar-badge {
    width: 24px;
    height: 24px;
    border-width: 2px;
    border-radius: 8px;
  }

  .pf-avatar-badge .material-symbols-outlined {
    font-size: 14px !important;
  }

  .pf-card-top-actions {
    top: 142px;
    right: 16px;
    gap: 8px;
  }

  .pf-card-top-actions .pf-action-icon-btn {
    padding: 4px;
  }

  .pf-card-top-actions .pf-action-icon-btn .material-symbols-outlined {
    font-size: 18px;
  }

  .pf-card-body {
    padding: 16px;
    padding-top: 12px;
  }

  .pf-card-name {
    font-size: 1.25rem;
    margin-bottom: 2px;
  }

  .pf-card-star {
    font-size: 1rem;
  }

  .pf-card-headline {
    font-size: 0.75rem;
    margin-bottom: 16px;
  }

  .pf-stats-row {
    gap: 16px;
    margin-bottom: 20px;
    justify-content: space-between;
  }

  .pf-stat-num {
    font-size: 1.125rem;
  }

  .pf-stat-label {
    font-size: 0.6875rem;
  }

  .pf-buttons-row {
    gap: 8px;
    margin-bottom: 20px;
  }

  .pf-btn {
    flex: 1;
    min-width: 100px;
    padding: 6px 14px;
    height: 36px;
    font-size: 0.75rem;
    border-radius: 10px;
  }

  .pf-btn-icon-only {
    flex: 0 0 36px;
    min-width: 36px;
    width: 36px;
  }

  .pf-about-section {
    margin-bottom: 16px;
  }

  .pf-about-title {
    font-size: 0.75rem;
    margin-bottom: 6px;
  }

  .pf-about-bio {
    font-size: 0.8125rem;
  }

  .pf-meta-details {
    gap: 8px;
  }

  .pf-meta-row {
    font-size: 0.75rem;
  }

  .pf-meta-row .material-symbols-outlined {
    font-size: 16px !important;
  }
}