/* === Openclass · Reducto white-and-purple design system === */

:root,
html[data-theme="light"] {
  --oc-bg: #faf9f6;
  --oc-bg-alt: #f8fafc;
  --oc-card: #ffffff;
  --oc-border: #e5e7eb;
  --oc-radius: 6px;
  --oc-purple: #7c3aed;
  --oc-purple-soft: rgba(124, 58, 237, 0.1);
  --oc-text: #0f172a;
  --oc-muted: #475569;
  --oc-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

html[data-theme="dark"] {
  --oc-bg: #0f172a;
  --oc-bg-alt: #111827;
  --oc-card: #1e293b;
  --oc-border: #334155;
  --oc-radius: 6px;
  --oc-purple: #8b5cf6;
  --oc-purple-soft: rgba(139, 92, 246, 0.16);
  --oc-text: #f8fafc;
  --oc-muted: #94a3b8;
  --oc-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

html,
body,
#app {
  background: var(--oc-bg) !important;
  color: var(--oc-text) !important;
}

.shell,
.main,
.content,
.sidebar {
  background: var(--oc-bg) !important;
  color: var(--oc-text) !important;
}

.main,
.content {
  background: var(--oc-bg-alt) !important;
}

.sidebar {
  background: var(--oc-card) !important;
  border-right: 1px solid var(--oc-border) !important;
}

.topbar,
.reducto-topbar {
  background: #f3e8ff !important;
  border-bottom: 1px solid rgba(107, 33, 168, 0.12) !important;
  box-shadow: none !important;
  color: #0f172a !important;
}

html[data-theme="dark"] .topbar,
html[data-theme="dark"] .reducto-topbar {
  background: rgba(139, 92, 246, 0.18) !important;
  border-bottom-color: rgba(139, 92, 246, 0.28) !important;
  color: #f8fafc !important;
}

.panel,
.class-card,
.management-card,
.faculty-overview,
.feed-panel,
.graph-panel,
.schedule-panel,
.login-card,
.modal,
.batch-card,
.assignment-card,
.hub-filter-panel {
  background: var(--oc-card) !important;
  border: 1px solid var(--oc-border) !important;
  border-radius: var(--oc-radius) !important;
  box-shadow: var(--oc-shadow) !important;
  color: var(--oc-text) !important;
}

.hero-title,
.hero-title .accent,
.login-title,
.brand-name,
.panel-title,
.profile-name,
.assignment-card-title,
.class-title {
  color: var(--oc-text) !important;
}

.hero-copy,
.login-sub,
.panel-meta,
.profile-role,
.eyebrow,
.date-note,
.breadcrumb,
.breadcrumb span,
.breadcrumb strong {
  color: var(--oc-muted) !important;
}

.primary-btn,
.meet-btn,
.mini-btn.primary {
  background: #7c3aed !important;
  border: 1px solid #7c3aed !important;
  color: #ffffff !important;
  border-radius: var(--oc-radius) !important;
  box-shadow: none !important;
}

.primary-btn:hover,
.meet-btn:hover {
  background: #6d28d9 !important;
  border-color: #6d28d9 !important;
}

.secondary-btn,
.muted-btn,
.topbar-signout-btn,
.sidebar-signout-btn,
.icon-btn {
  background: var(--oc-card) !important;
  border: 1px solid var(--oc-border) !important;
  color: var(--oc-text) !important;
  border-radius: var(--oc-radius) !important;
}

.nav-item {
  color: var(--oc-muted) !important;
  border-radius: var(--oc-radius) !important;
}

.nav-item.active {
  background: var(--oc-purple-soft) !important;
  color: #7c3aed !important;
  border: 1px solid rgba(124, 58, 237, 0.25) !important;
}

.field-input,
.command-search,
.command-search input {
  background: var(--oc-card) !important;
  border: 1px solid var(--oc-border) !important;
  color: var(--oc-text) !important;
  border-radius: var(--oc-radius) !important;
}

.command-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
}

.command-search input {
  border: 0 !important;
  background: transparent !important;
  color: var(--oc-text) !important;
}

.avatar {
  background: var(--oc-purple-soft) !important;
  color: #7c3aed !important;
  border: 1px solid rgba(124, 58, 237, 0.2) !important;
}

.login-screen {
  background:
    radial-gradient(circle at 12% 88%, rgba(243, 232, 255, 0.9) 0%, transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(237, 233, 254, 0.95) 0%, transparent 38%),
    var(--oc-bg-alt) !important;
  position: relative;
  overflow: hidden;
}

.login-screen::before,
.login-screen::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.login-screen::before {
  width: 560px;
  height: 560px;
  top: -220px;
  right: -180px;
  border: 48px solid rgba(124, 58, 237, 0.12);
  background: radial-gradient(circle, rgba(243, 232, 255, 0.55) 0%, transparent 68%);
}

.login-screen::after {
  width: 440px;
  height: 440px;
  bottom: -180px;
  left: -160px;
  border: 32px solid rgba(124, 58, 237, 0.1);
  background: transparent;
}

.login-bg-rings {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.login-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(124, 58, 237, 0.16);
}

.login-ring-a {
  width: 280px;
  height: 280px;
  top: 12%;
  left: -70px;
  border-width: 22px;
  border-color: rgba(167, 139, 250, 0.18);
}

.login-ring-b {
  width: 180px;
  height: 180px;
  bottom: 18%;
  right: 8%;
  border-width: 16px;
  border-color: rgba(124, 58, 237, 0.14);
}

.login-ring-c {
  width: 90px;
  height: 90px;
  top: 28%;
  right: 18%;
  border-width: 10px;
  border-color: rgba(109, 40, 217, 0.16);
}

.login-screen .login-card {
  position: relative;
  z-index: 1;
}

html[data-theme="dark"] .login-screen {
  background:
    radial-gradient(circle at 12% 88%, rgba(124, 58, 237, 0.18) 0%, transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(139, 92, 246, 0.16) 0%, transparent 38%),
    var(--oc-bg) !important;
}

html[data-theme="dark"] .login-screen::before {
  border-color: rgba(167, 139, 250, 0.22);
  background: radial-gradient(circle, rgba(91, 33, 182, 0.18) 0%, transparent 68%);
}

html[data-theme="dark"] .login-screen::after {
  border-color: rgba(139, 92, 246, 0.18);
}

.login-card {
  background: var(--oc-card) !important;
  border: 1px solid var(--oc-border) !important;
  border-radius: var(--oc-radius) !important;
}

.shell {
  display: flex !important;
  flex-direction: row !important;
}

.sidebar .brand,
.sidebar .reducto-brand,
.sidebar .sidebar-brand {
  display: none !important;
}

.sidebar-logo-wrap {
  display: none !important;
}

.brand-mark,
.oc-logo-mark {
  height: 2.5rem;
  width: auto;
  max-height: 2.5rem;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

html[data-theme="light"] .oc-logo-mark {
  filter: invert(1);
}

html[data-theme="dark"] .oc-logo-mark {
  filter: none;
}

.reducto-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 10px 20px !important;
}

.reducto-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 160px;
}

.reducto-topbar .reducto-brand {
  gap: 12px;
  align-items: center;
}

.reducto-brand-name {
  font-family: "Space Grotesk", "Manrope", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #0f172a;
}

html[data-theme="dark"] .reducto-brand-name {
  color: #f8fafc;
}

html[data-theme="light"] .reducto-topbar .command-search,
html[data-theme="light"] .reducto-topbar .theme-toggle-btn,
html[data-theme="light"] .reducto-topbar .topbar-signout-btn {
  background: rgba(255, 255, 255, 0.72) !important;
  border-color: rgba(107, 33, 168, 0.16) !important;
  color: #0f172a !important;
}

.attendance-status-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0 18px;
  padding: 8px 12px;
  background: var(--oc-card);
  border: 1px solid var(--oc-border);
  border-radius: var(--oc-radius);
  font-size: 12px;
  color: var(--oc-muted);
}

.attendance-status-strip strong {
  font-size: 13px;
}

.attendance-status-strip .mini-track {
  flex: 1;
  max-width: 180px;
  height: 6px;
  border-radius: 999px;
  overflow: hidden;
}

.theme-toggle-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--oc-radius);
  border: 1px solid var(--oc-border);
  background: var(--oc-card);
  color: var(--oc-text);
  cursor: pointer;
}

.people-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.person-card {
  display: flex !important;
  align-items: center;
  gap: 14px;
  padding: 16px 18px !important;
  min-height: 0 !important;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: #ffffff !important;
  border: 1px solid #e5e7eb !important;
  border-radius: 6px !important;
  box-shadow: none !important;
}

.person-avatar {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  background: var(--oc-purple-soft);
  color: #7c3aed;
}

.person-copy {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.person-copy strong {
  color: var(--oc-text) !important;
  font-size: 14px;
  line-height: 1.3;
}

.person-copy span,
.person-copy small {
  color: var(--oc-muted) !important;
  font-size: 12px;
  line-height: 1.4;
}

.person-actions {
  flex-shrink: 0;
}

html[data-theme="dark"] .person-card {
  background: var(--oc-card) !important;
  border-color: var(--oc-border) !important;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.command-search:focus-within,
.field-input:focus,
input:focus,
textarea:focus {
  border-color: #7c3aed !important;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15) !important;
  outline: none;
}

.sso-btn,
.quick-action,
.status-pill,
.muted-btn {
  border-radius: var(--oc-radius) !important;
}

.faculty-stat strong,
.management-copy strong,
.assignment-row strong,
.count,
.class-sub,
.nav-label,
.profile-name {
  color: var(--oc-text) !important;
}

html[data-theme="dark"] .attendance-status-strip,
html[data-theme="dark"] .panel,
html[data-theme="dark"] .class-card {
  background: var(--oc-card) !important;
}

.attendance-subject-row {
  padding: 12px 14px;
  border-radius: 6px;
  background: var(--oc-bg-alt);
  border: 1px solid var(--oc-border);
}

.attendance-subject-row strong {
  color: var(--oc-text);
}

/* Light-mode contrast: override dark-theme leftovers in style.css + inline hex */
html[data-theme="light"] .login-title,
html[data-theme="light"] .login-sub,
html[data-theme="light"] .login-divider,
html[data-theme="light"] .role-tab-btn,
html[data-theme="light"] .demo-title,
html[data-theme="light"] .demo-chip,
html[data-theme="light"] .assignment-card-title,
html[data-theme="light"] .assignment-card-meta,
html[data-theme="light"] .mini-btn,
html[data-theme="light"] .host-badge-chip,
html[data-theme="light"] .class-sub,
html[data-theme="light"] .class-overline,
html[data-theme="light"] .count-label,
html[data-theme="light"] .management-copy,
html[data-theme="light"] .management-copy span,
html[data-theme="light"] .faculty-stat span,
html[data-theme="light"] .nav-label,
html[data-theme="light"] .panel-meta,
html[data-theme="light"] .hero-copy,
html[data-theme="light"] .eyebrow,
html[data-theme="light"] .date-note,
html[data-theme="light"] .profile-role {
  color: var(--oc-muted) !important;
}

html[data-theme="light"] .login-title,
html[data-theme="light"] .assignment-card-title,
html[data-theme="light"] .class-title,
html[data-theme="light"] .panel-title,
html[data-theme="light"] .hero-title,
html[data-theme="light"] .hero-title .accent,
html[data-theme="light"] .faculty-stat strong,
html[data-theme="light"] .management-copy strong,
html[data-theme="light"] .count,
html[data-theme="light"] table td,
html[data-theme="light"] table th,
html[data-theme="light"] .modal h2,
html[data-theme="light"] .modal p,
html[data-theme="light"] .modal label,
html[data-theme="light"] .modal strong {
  color: var(--oc-text) !important;
}

html[data-theme="light"] .login-sub,
html[data-theme="light"] .assignment-card-meta,
html[data-theme="light"] table th,
html[data-theme="light"] .panel-meta,
html[data-theme="light"] .class-sub,
html[data-theme="light"] .eyebrow,
html[data-theme="light"] .date-note,
html[data-theme="light"] .hero-copy,
html[data-theme="light"] .profile-role,
html[data-theme="light"] .demo-title,
html[data-theme="light"] .login-divider {
  color: var(--oc-muted) !important;
}

html[data-theme="light"] .mini-btn:not(.primary):not(.danger) {
  color: var(--oc-text) !important;
  border-color: var(--oc-border) !important;
}

html[data-theme="light"] .role-tab-btn.active {
  color: #ffffff !important;
}

html[data-theme="light"] .sso-ms {
  background: var(--oc-card) !important;
  color: var(--oc-text) !important;
  border: 1px solid var(--oc-border) !important;
}

html[data-theme="light"] .role-tabs {
  background: var(--oc-bg-alt) !important;
  border-color: var(--oc-border) !important;
}

html[data-theme="light"] [style*="color: #f4f1ff"],
html[data-theme="light"] [style*="color:#f4f1ff"],
html[data-theme="light"] [style*="color: #f7f5ff"],
html[data-theme="light"] [style*="color: #f3efff"],
html[data-theme="light"] [style*="color: #f2effc"],
html[data-theme="light"] [style*="color: #d8d3ea"],
html[data-theme="light"] [style*="color: #dcd4ff"] {
  color: #0f172a !important;
}

html[data-theme="light"] [style*="color: #8e87a2"],
html[data-theme="light"] [style*="color:#8e87a2"],
html[data-theme="light"] [style*="color: #9d94bf"],
html[data-theme="light"] [style*="color: #b3aec5"],
html[data-theme="light"] [style*="color: #cfc2ff"],
html[data-theme="light"] [style*="color: #8c879d"],
html[data-theme="light"] [style*="color: #c5c0d6"],
html[data-theme="light"] [style*="color: #aba5be"] {
  color: #475569 !important;
}

html[data-theme="light"] .primary-btn,
html[data-theme="light"] .meet-btn,
html[data-theme="light"] .mini-btn.primary,
html[data-theme="light"] .role-tab-btn.active {
  color: #ffffff !important;
}

html[data-theme="light"] .hub-filter-panel,
html[data-theme="light"] .knowledge-hub-view .panel:not(.hub-resource-card) {
  background: #ffffff !important;
  border: 1px solid #e5e7eb !important;
  color: #0f172a !important;
}

html[data-theme="light"] .hub-results-count {
  color: #475569 !important;
}

html[data-theme="light"] .notes-search-wrap {
  background: #ffffff !important;
  border: 1px solid #e5e7eb !important;
}

.hub-resource-card,
html[data-theme="light"] .hub-resource-card {
  background: linear-gradient(145deg, #1f1d2f, #151322) !important;
  border: 1px solid rgba(167, 139, 250, 0.22) !important;
  color: #f8fafc !important;
}

.hub-card-title,
html[data-theme="light"] .hub-card-title {
  color: #f8fafc !important;
}

.hub-card-filename,
.hub-card-meta,
.hub-meta-item,
html[data-theme="light"] .hub-card-filename,
html[data-theme="light"] .hub-card-meta,
html[data-theme="light"] .hub-meta-item {
  color: #cbd5e1 !important;
}

.hub-download-btn,
html[data-theme="light"] .hub-download-btn {
  color: #f8fafc !important;
  background: rgba(167, 139, 250, 0.16) !important;
  border: 1px solid rgba(167, 139, 250, 0.35) !important;
}

.hub-download-btn:hover,
html[data-theme="light"] .hub-download-btn:hover {
  color: #ffffff !important;
  background: #7c3aed !important;
  border-color: #7c3aed !important;
}

html[data-theme="light"] .schedule-details strong,
html[data-theme="light"] .feed-copy strong,
html[data-theme="light"] .count,
html[data-theme="light"] .assignment-row strong,
html[data-theme="light"] .timetable-view strong,
html[data-theme="light"] .person-copy strong {
  color: #0f172a !important;
}

html[data-theme="light"] .schedule-details span,
html[data-theme="light"] .schedule-time,
html[data-theme="light"] .feed-copy p,
html[data-theme="light"] .feed-time,
html[data-theme="light"] .class-overline,
html[data-theme="light"] .count-label,
html[data-theme="light"] .management-copy span,
html[data-theme="light"] .faculty-stat span {
  color: #475569 !important;
}

html[data-theme="light"] .notes-subject-pill,
html[data-theme="light"] .role-tab-btn {
  background: #ffffff !important;
  border: 1px solid #cbd5e1 !important;
  color: #0f172a !important;
}

html[data-theme="light"] .notes-subject-pill.active,
html[data-theme="light"] .role-tab-btn.active {
  background: #7c3aed !important;
  border-color: #7c3aed !important;
  color: #ffffff !important;
}

.notes-subject-pill.active {
  background: #7c3aed !important;
  border-color: #7c3aed !important;
  color: #ffffff !important;
}

.graph-node,
.graph-node * {
  color: #ffffff !important;
}

.graph-node .node-kicker,
.graph-node .node-name,
html[data-theme="light"] .graph-node .node-kicker,
html[data-theme="light"] .graph-node .node-name {
  color: #ffffff !important;
}

html[data-theme="light"] .faculty-stat,
html[data-theme="light"] .quick-action,
html[data-theme="light"] .compact-action,
html[data-theme="light"] .batch-card,
html[data-theme="light"] .faculty-note,
html[data-theme="light"] .roster-upload,
html[data-theme="light"] .class-card,
html[data-theme="light"] .management-card,
html[data-theme="light"] .faculty-overview {
  background: #ffffff !important;
  border: 1px solid #e5e7eb !important;
  color: #0f172a !important;
}

html[data-theme="light"] .faculty-stat,
html[data-theme="light"] .faculty-stat span,
html[data-theme="light"] .faculty-stat strong,
html[data-theme="light"] .faculty-stat small,
html[data-theme="light"] .quick-action,
html[data-theme="light"] .quick-action strong,
html[data-theme="light"] .quick-action span,
html[data-theme="light"] .compact-action,
html[data-theme="light"] .compact-action strong,
html[data-theme="light"] .compact-action span,
html[data-theme="light"] .batch-card,
html[data-theme="light"] .batch-card strong,
html[data-theme="light"] .batch-card small,
html[data-theme="light"] .batch-kicker,
html[data-theme="light"] .faculty-note,
html[data-theme="light"] .faculty-note strong,
html[data-theme="light"] .faculty-note span,
html[data-theme="light"] .progress-ring,
html[data-theme="light"] .progress-ring span,
html[data-theme="light"] .text-action,
html[data-theme="light"] .management-copy,
html[data-theme="light"] .management-copy strong,
html[data-theme="light"] .management-copy span,
html[data-theme="light"] .class-title,
html[data-theme="light"] .class-sub,
html[data-theme="light"] .class-overline,
html[data-theme="light"] .count,
html[data-theme="light"] .count-label {
  color: #0f172a !important;
}

html[data-theme="light"] .quick-action svg,
html[data-theme="light"] .compact-action svg {
  color: #7c3aed !important;
}

html[data-theme="light"] .quick-action:hover,
html[data-theme="light"] .compact-action:hover {
  background: #ffffff !important;
  border-color: #e5e7eb !important;
}

.upload-zone {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
}

#tt-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  font-size: 0;
}

.upload-zone.has-file,
.upload-zone.dragging {
  border-color: #7c3aed !important;
  background: rgba(243, 232, 255, 0.45) !important;
}

.tt-file-name {
  min-height: 18px;
  margin: 8px 0 12px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: #0f172a;
}

html[data-theme="dark"] .tt-file-name {
  color: #f8fafc;
}