/* style.css - Design System and Theme Rules for restarted Teacher Nexa */

:root {
  --font-family-headings: 'Outfit', sans-serif;
  --font-family-body: 'Plus Jakarta Sans', sans-serif;

  /* Colors */
  --color-primary-light: #2d4a43;
  --color-primary-dark: #4d7a70;
  --color-secondary-light: #576e68;
  --color-secondary-dark: #819892;

  --color-bg-light: #f2f4f2;
  --color-bg-dark: #121a18;
  --color-sidebar-bg-light: #e2e6e3;
  --color-sidebar-bg-dark: #1a2623;

  --color-card-bg-light: #ffffff;
  --color-card-bg-dark: #1f2c28;

  --color-text-primary-light: #1a2623;
  --color-text-primary-dark: #f2f4f2;
  --color-text-secondary-light: #576e68;
  --color-text-secondary-dark: #819892;

  --color-border-light: #d6dedb;
  --color-border-dark: #2d4a43;

  --color-success-light: #447a5d;
  --color-success-dark: #6eb38c;
  --color-danger-light: #a94442;
  --color-danger-dark: #e57373;

  /* Fallback definitions */
  --color-primary: var(--color-primary-light);
  --color-secondary: var(--color-secondary-light);
  --color-success: var(--color-success-light);
  --color-danger: var(--color-danger-light);
  --color-bg: var(--color-bg-light);
  --color-sidebar-bg: var(--color-sidebar-bg-light);
  --color-card-bg: var(--color-card-bg-light);
  --color-text-primary: var(--color-text-primary-light);
  --color-text-secondary: var(--color-text-secondary-light);
  --color-border: var(--color-border-light);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.06);
  --glass-border: 1px solid var(--color-border-light);
  --glass-backdrop: blur(0px);

  --color-scrollbar-track: oklch(94% 0.01 240);
  --color-scrollbar-thumb: oklch(80% 0.01 240);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: var(--color-primary-dark);
    --color-secondary: var(--color-secondary-dark);
    --color-success: var(--color-success-dark);
    --color-danger: var(--color-danger-dark);
    --color-bg: var(--color-bg-dark);
    --color-sidebar-bg: var(--color-sidebar-bg-dark);
    --color-card-bg: var(--color-card-bg-dark);
    --color-text-primary: var(--color-text-primary-dark);
    --color-text-secondary: var(--color-text-secondary-dark);
    --color-border: var(--color-border-dark);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
    --glass-border: 1px solid oklch(28% 0.02 245 / 0.5);
    --glass-backdrop: blur(20px);
    --color-scrollbar-track: oklch(18% 0.02 245);
    --color-scrollbar-thumb: oklch(35% 0.02 245);
  }
}

html.light {
  color-scheme: light;
  --color-primary: var(--color-primary-light);
  --color-secondary: var(--color-secondary-light);
  --color-success: var(--color-success-light);
  --color-danger: var(--color-danger-light);
  --color-bg: var(--color-bg-light);
  --color-sidebar-bg: var(--color-sidebar-bg-light);
  --color-card-bg: var(--color-card-bg-light);
  --color-text-primary: var(--color-text-primary-light);
  --color-text-secondary: var(--color-text-secondary-light);
  --color-border: var(--color-border-light);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.06);
  --glass-border: 1px solid var(--color-border-light);
  --glass-backdrop: blur(0px);
  --color-scrollbar-track: oklch(94% 0.01 240);
  --color-scrollbar-thumb: oklch(80% 0.01 240);
}

html.dark {
  color-scheme: dark;
  --color-primary: var(--color-primary-dark);
  --color-secondary: var(--color-secondary-dark);
  --color-success: var(--color-success-dark);
  --color-danger: var(--color-danger-dark);
  --color-bg: var(--color-bg-dark);
  --color-sidebar-bg: var(--color-sidebar-bg-dark);
  --color-card-bg: var(--color-card-bg-dark);
  --color-text-primary: var(--color-text-primary-dark);
  --color-text-secondary: var(--color-text-secondary-dark);
  --color-border: var(--color-border-dark);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.35);
  --glass-border: 1px solid oklch(28% 0.02 245 / 0.5);
  --glass-backdrop: blur(20px);
  --color-scrollbar-track: oklch(18% 0.02 245);
  --color-scrollbar-thumb: oklch(35% 0.02 245);
}

@supports (color: light-dark(white, black)) {
  :root {
    --color-primary: light-dark(var(--color-primary-light), var(--color-primary-dark));
    --color-secondary: light-dark(var(--color-secondary-light), var(--color-secondary-dark));
    --color-success: light-dark(var(--color-success-light), var(--color-success-dark));
    --color-danger: light-dark(var(--color-danger-light), var(--color-danger-dark));
    --color-bg: light-dark(var(--color-bg-light), var(--color-bg-dark));
    --color-sidebar-bg: light-dark(var(--color-sidebar-bg-light), var(--color-sidebar-bg-dark));
    --color-card-bg: light-dark(var(--color-card-bg-light), var(--color-card-bg-dark));
    --color-text-primary: light-dark(var(--color-text-primary-light), var(--color-text-primary-dark));
    --color-text-secondary: light-dark(var(--color-text-secondary-light), var(--color-text-secondary-dark));
    --color-border: light-dark(var(--color-border-light), var(--color-border-dark));
    --color-scrollbar-track: light-dark(oklch(94% 0.01 240), oklch(18% 0.02 245));
    --color-scrollbar-thumb: light-dark(oklch(80% 0.01 240), oklch(35% 0.02 245));
  }
}

/* Base resets */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-body);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s, color 0.3s;
}

h1, h2, h3, h4 {
  font-family: var(--font-family-headings);
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Scrollbars */
html {
  accent-color: var(--color-primary);
  scrollbar-color: var(--color-scrollbar-thumb) var(--color-scrollbar-track);
}
@supports not (scrollbar-color: auto) {
  ::-webkit-scrollbar { width: 8px; height: 8px; }
  ::-webkit-scrollbar-track { background: var(--color-scrollbar-track); }
  ::-webkit-scrollbar-thumb { background: var(--color-scrollbar-thumb); border-radius: 4px; }
}

/* --- Authentication views styles --- */
.Auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(circle at 10% 20%, oklch(from var(--color-primary) calc(l + 0.1) c h / 0.12) 0%, transparent 60%),
              radial-gradient(circle at 90% 80%, oklch(from var(--color-secondary) calc(l + 0.1) c h / 0.1) 0%, transparent 60%),
              var(--color-bg);
}

.Auth-container {
  width: 100%;
  max-width: 440px;
  background-color: var(--color-card-bg);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 20px;
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  backdrop-filter: var(--glass-backdrop);
  animation: authIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes authIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.Auth-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 30px;
}

.Brand-logo {
  font-family: var(--font-family-headings);
  font-weight: 700;
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.Brand-suffix {
  font-family: var(--font-family-headings);
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.Auth-title {
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.Auth-subtitle {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* App layout structures */
.App-layout {
  display: flex;
  min-height: 100vh;
}

/* Desktop Sidebar styling */
.Sidebar {
  width: 280px;
  background-color: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: background-color 0.3s, border-color 0.3s;
}

.Sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--color-border);
}

.Sidebar-user {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  background-color: oklch(from var(--color-border) l c h / 0.2);
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
}

.Sidebar-user:hover {
  background-color: oklch(from var(--color-border) l c h / 0.4);
}

.Profile-settings-cog {
  font-size: 1.1rem;
  opacity: 0.6;
  transition: transform 0.3s ease, opacity 0.2s;
  margin-left: auto;
  color: var(--color-text-secondary);
}

.Sidebar-user:hover .Profile-settings-cog {
  opacity: 1;
  transform: rotate(45deg);
  color: var(--color-text-primary);
}

.User-avatar {
  font-size: 1.8rem;
  width: 44px;
  height: 44px;
  background-color: var(--color-card-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.User-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.User-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.User-school {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.Sidebar-nav {
  flex: 1;
  padding: 20px 12px;
  overflow-y: auto;
}

.Nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.Nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.Nav-link:hover {
  background-color: oklch(from var(--color-primary) l c h / 0.08);
  color: var(--color-primary);
}

.Nav-link.active {
  background-color: oklch(from var(--color-primary) l c h / 0.12);
  color: var(--color-primary);
  font-weight: 600;
}

.Sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.Logout-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  border-radius: 10px;
  background-color: transparent;
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
  font-family: var(--font-family-body);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all 0.2s;
}

.Logout-btn:hover {
  background-color: oklch(from var(--color-danger) l c h / 0.08);
}

/* Theme toggle */
.Theme-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px;
  border-radius: 10px;
  background-color: oklch(from var(--color-border) l c h / 0.4);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-family: var(--font-family-body);
  font-weight: 500;
  cursor: pointer;
}

.light-icon, .dark-icon { display: none; }
html.dark .dark-icon { display: inline; }
html.light .light-icon { display: inline; }
html:not(.light):not(.dark) .dark-icon { display: inline; }

/* Main Content area */
.Main-content {
  flex: 1;
  margin-left: 280px;
  padding: 30px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.Viewport {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  animation: viewIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Mobile Header navigation drawer templates */
.Mobile-header {
  display: none;
  height: 60px;
  background-color: var(--color-sidebar-bg);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 101;
}

/* Responsive Navigation Drawer Popover */
.Drawer {
  --drawer-width: min(20em, 80dvw);
  --drawer-backdrop: 0;
  width: auto;
  height: auto;
  background: transparent;
  border: 0;
  overflow: visible;
  padding: 0;
  margin: 0;
}
.Drawer::backdrop {
  background: #000;
  opacity: calc(var(--drawer-backdrop) / 2);
}
.Drawer-scroller {
  position: relative;
  display: grid;
  grid-template-columns: var(--drawer-width) 100%;
  overflow-x: scroll;
  overscroll-behavior: none;
  scrollbar-width: none;
  scroll-snap-type: x mandatory;
}
.Drawer-scroller::-webkit-scrollbar { display: none; }
@media (prefers-reduced-motion: no-preference) {
  .Drawer-scroller { scroll-behavior: smooth; }
}
.Drawer-scroller::after {
  content: '';
  scroll-snap-align: end;
  scroll-initial-target: nearest;
}
.Drawer-sheet {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100svh;
  background: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-border);
  color: var(--color-text-primary);
  overflow-y: auto;
  scroll-snap-align: start;
}
.Drawer-header {
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}
.Drawer-brand { display: flex; align-items: center; gap: 8px; }
.Drawer-footer { padding: 16px; border-top: 1px solid var(--color-border); }

@supports (animation-timeline: scroll()) {
  .Drawer {
    timeline-scope: --drawer-fade;
    animation: fade-drawer-backdrop linear both;
    animation-timeline: --drawer-fade;
  }
  .Drawer-scroller { scroll-timeline: --drawer-fade x; }
  @property --drawer-backdrop { syntax: '<number>'; inherits: true; initial-value: 0; }
  @keyframes fade-drawer-backdrop { 0% { --drawer-backdrop: 1 } 100% { --drawer-backdrop: 0 } }
}

/* Glass card */
.Glass-card {
  background-color: var(--color-card-bg);
  border: var(--glass-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: var(--glass-backdrop);
  margin-bottom: 24px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.Glass-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
}

/* Buttons */
.Btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--font-family-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.Btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}
.Btn-primary:hover {
  background-color: oklch(from var(--color-primary) calc(l - 0.05) c h);
  box-shadow: 0 4px 12px oklch(from var(--color-primary) l c h / 0.2);
}

.Btn-secondary {
  background-color: oklch(from var(--color-border) l c h / 0.5);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}
.Btn-secondary:hover {
  background-color: oklch(from var(--color-border) l c h / 0.8);
}

.Btn-danger {
  background-color: var(--color-danger);
  color: #fff;
}
.Btn-danger:hover {
  background-color: oklch(from var(--color-danger) calc(l - 0.05) c h);
}
.Btn-outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.Btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.Btn-outline.active {
  background-color: oklch(from var(--color-primary) l c h / 0.15);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.Icon-btn {
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}
.Icon-btn:hover {
  background-color: oklch(from var(--color-border) l c h / 0.5);
}

/* Form Controls */
.Form-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.Form-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.Input, .Select, .Textarea {
  padding: 10px 14px;
  border-radius: 8px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-family: var(--font-family-body);
  font-size: 0.95rem;
  width: 100%;
  transition: all 0.2s;
}

.Input:focus, .Select:focus, .Textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

.Link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
}
.Link:hover {
  text-decoration: underline;
}

/* Spinner Loader */
.Loader-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.Spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Badges */
.Badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
}
.Badge-primary { background-color: oklch(from var(--color-primary) l c h / 0.15); color: var(--color-primary); }
.Badge-secondary { background-color: oklch(from var(--color-secondary) l c h / 0.15); color: var(--color-secondary); }
.Badge-success { background-color: oklch(from var(--color-success) l c h / 0.15); color: var(--color-success); }
.Badge-danger { background-color: oklch(from var(--color-danger) l c h / 0.15); color: var(--color-danger); }
.Badge-warning { background-color: oklch(from var(--color-warning) l c h / 0.15); color: var(--color-warning); }

/* Common layouts */
.Page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}
.Page-title-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.Page-subtitle {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.Dashboard-split {
  display: grid;
  grid-template-columns: 1.65fr 1.35fr;
  grid-template-areas:
    "schedule calendar"
    "passes planner";
  gap: 16px;
}
.Dashboard-split > * {
  min-width: 0;
}
@media (max-width: 992px) {
  .Dashboard-split {
    grid-template-columns: 1fr !important;
    grid-template-areas:
      "schedule"
      "calendar"
      "planner"
      "passes" !important;
  }
}

/* --- Timetable Grid Styles --- */
.Timetable-container {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background-color: var(--color-card-bg);
}

.Timetable-grid-header, .Timetable-grid-row {
  display: grid;
  grid-template-columns: 150px repeat(var(--days-count, 5), 140px);
  border-bottom: 1px solid var(--color-border);
  min-width: 100%;
  width: max-content;
}

.Timetable-grid-header {
  background-color: oklch(from var(--color-border) l c h / 0.3);
  font-weight: bold;
}

.Timetable-header-cell {
  padding: 12px;
  text-align: center;
  border-right: 1px solid var(--color-border);
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.Timetable-header-cell:last-child {
  border-right: none;
}

.Timetable-time-cell {
  padding: 14px 12px;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  background-color: oklch(from var(--color-border) l c h / 0.1);
}

.Timetable-slot-cell {
  padding: 10px;
  border-right: 1px solid var(--color-border);
  min-height: 70px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: background-color 0.2s;
}
.Timetable-slot-cell:last-child {
  border-right: none;
}

/* Interactive select slot styling */
.Slot-select {
  width: 100%;
  padding: 6px;
  font-size: 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  margin-top: auto;
}

/* Break bar slot */
.Timetable-break-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  border-bottom: 1px solid var(--color-border);
  background: repeating-linear-gradient(
    45deg,
    oklch(from var(--color-border) l c h / 0.2),
    oklch(from var(--color-border) l c h / 0.2) 10px,
    oklch(from var(--color-border) l c h / 0.1) 10px,
    oklch(from var(--color-border) l c h / 0.1) 20px
  );
}

.Timetable-break-cell {
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Timetable config list */
.Slot-config-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 10px;
}

/* Student roster tables */
.Table-container {
  overflow-x: auto;
  margin-top: 16px;
}
.Data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}
.Data-table th, .Data-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--color-border);
}
.Data-table th {
  background-color: oklch(from var(--color-border) l c h / 0.2);
  color: var(--color-text-secondary);
  font-weight: 600;
}

/* Bulk paste textarea */
.Bulk-textarea {
  font-family: monospace;
  font-size: 0.88rem;
  line-height: 1.4;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
  resize: vertical;
}

/* Toast container system */
.Toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
  width: calc(100vw - 48px);
}
.Toast {
  background-color: var(--color-card-bg);
  border-left: 5px solid var(--color-primary);
  border-radius: 8px;
  padding: 14px 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--color-text-primary);
  animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.Toast.success { border-left-color: var(--color-success); }
.Toast.danger { border-left-color: var(--color-danger); }
.Toast-body { font-size: 0.9rem; font-weight: 500; }
.Toast-close { background: transparent; border: none; color: var(--color-text-secondary); cursor: pointer; font-size: 1.1rem; }
@keyframes toastIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive styles */
@media (max-width: 768px) {
  .Mobile-header { display: flex; }
  .Sidebar { display: none; }
  .Main-content { margin-left: 0; padding: 80px 16px 20px 16px; }
  .Page-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .Page-header .Btn { width: 100%; }
}

/* --- Avatar & Profile Styles --- */
.Avatar-select-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.Avatar-select-card {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  background-color: var(--color-bg);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.Avatar-select-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.Avatar-select-card.active {
  border-color: var(--color-primary);
  background-color: oklch(from var(--color-primary) l c h / 0.08);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

.Avatar-large {
  font-size: 3.2rem;
  width: 76px;
  height: 76px;
  background-color: var(--color-card-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--glass-shadow);
}

.LinkedIn-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.LinkedIn-icon-prefix {
  position: absolute;
  left: 12px;
  font-size: 1.1rem;
  color: oklch(48% 0.15 250); /* LinkedIn blue oklch */
}

.Input-linkedin {
  padding-left: 36px !important;
}

.LinkedIn-connect-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  background-color: oklch(48% 0.15 250 / 0.1);
  color: oklch(48% 0.15 250);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid oklch(48% 0.15 250 / 0.2);
  transition: all 0.2s;
}

.LinkedIn-connect-badge:hover {
  background-color: oklch(48% 0.15 250 / 0.2);
  transform: scale(1.02);
}

/* --- Inline Student Editor Row --- */
.Edit-input {
  padding: 6px 10px;
  font-size: 0.88rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  width: 100%;
}

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

.Edit-row-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* --- Modal Overlay Layouts --- */
.Modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 38, 35, 0.65); /* Use our dark green color with transparency! */
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.25s ease-out;
}

.Modal-card {
  background-color: var(--color-card-bg);
  border: var(--glass-border);
  border-radius: 16px;
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.Modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.Modal-header h2 {
  font-size: 1.25rem;
  margin: 0;
  color: var(--color-text-primary);
}

.Modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

.Modal-close-btn:hover {
  background-color: oklch(from var(--color-border) l c h / 0.5);
  color: var(--color-text-primary);
}

.Modal-body {
  padding: 24px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* --- Hall Pass Styles --- */
.Timer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.Timer-card {
  border-left: 6px solid var(--color-primary) !important;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 180px;
}

.Timer-time {
  font-family: monospace;
  font-size: 2.2rem;
  font-weight: 700;
  margin: 12px 0;
  color: var(--color-primary);
}

@keyframes pulseDanger {
  0% { border-color: var(--color-danger); box-shadow: 0 0 0 oklch(from var(--color-danger) l c h / 0.15); }
  50% { border-color: oklch(from var(--color-danger) calc(l + 0.1) c h); box-shadow: 0 0 16px oklch(from var(--color-danger) l c h / 0.4); }
  100% { border-color: var(--color-danger); box-shadow: 0 0 0 oklch(from var(--color-danger) l c h / 0.15); }
}

.Timer-card.overdue {
  border-left-color: var(--color-danger) !important;
  border-right-color: var(--color-danger) !important;
  border-top-color: var(--color-danger) !important;
  border-bottom-color: var(--color-danger) !important;
  animation: pulseDanger 1.5s infinite;
}

.Timer-card.overdue .Timer-time {
  color: var(--color-danger);
  animation: blinkText 1.5s infinite;
}

@keyframes blinkText {
  0% { opacity: 1; }
  50% { opacity: 0.4; }
  100% { opacity: 1; }
}

/* Copy Email Area */
.Email-alarm-box {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 16px;
  font-family: monospace;
  font-size: 0.88rem;
  line-height: 1.4;
  white-space: pre-wrap;
  margin: 12px 0;
  max-height: 300px;
  overflow-y: auto;
}

/* --- Analytics & Patterns --- */
.Pattern-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 24px;
}
.Pattern-grid > * {
  min-width: 0;
}
@media (max-width: 992px) {
  .Pattern-grid {
    grid-template-columns: 1fr;
  }
}

.Pattern-alert {
  background-color: oklch(from var(--color-danger) l c h / 0.08);
  border: 1px solid oklch(from var(--color-danger) l c h / 0.25);
  border-left: 5px solid var(--color-danger);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.Pattern-alert-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-danger);
  margin-bottom: 4px;
}

.Pattern-alert-body {
  font-size: 0.85rem;
  color: var(--color-text-primary);
  line-height: 1.4;
}

.Frequency-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border-bottom: 1px solid var(--color-border);
}
.Frequency-item:last-child {
  border-bottom: none;
}

/* --- Timetable Grid Spacing Adjustments --- */
.Timetable-split {
  grid-template-columns: 22% calc(78% - 24px) !important;
}
@media (max-width: 992px) {
  .Timetable-split {
    grid-template-columns: 1fr !important;
  }
}

/* --- Sidebar Academic Year Selector --- */
.Sidebar-year-select:focus {
  border-color: var(--color-primary) !important;
}

/* --- Sub Tabs Segmented Switchers --- */
.Sub-tabs-header {
  display: flex;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
  padding-bottom: 8px;
}

.Sub-tab-btn {
  background: none;
  border: none;
  border-radius: 0;
  padding: 8px 16px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.25s ease;
  outline: none;
}

.Sub-tab-btn.active {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
}

.Sub-tab-btn:hover {
  color: var(--color-text-primary);
  background-color: oklch(from var(--color-border) l c h / 0.1);
}

/* Lesson Plan / Slide Generator custom styles */
.Quota-card {
  background: oklch(from var(--color-primary) l c h / 0.04);
  border: 1px dashed var(--color-primary);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.Quota-progress-bg {
  background: var(--color-border);
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  width: 100%;
}

.Quota-progress-fill {
  background: var(--color-primary);
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.Quota-progress-fill.limit-reached {
  background: var(--color-danger);
}

.File-dropzone {
  border: 2px dashed var(--color-border);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  background: oklch(from var(--color-card-bg) l c h / 0.5);
  transition: border-color 0.2s, background-color 0.2s;
}

.File-dropzone:hover, .File-dropzone.dragover {
  border-color: var(--color-primary);
  background: oklch(from var(--color-primary) l c h / 0.05);
}

.File-dropzone svg {
  margin-bottom: 8px;
  color: var(--color-text-secondary);
}

.File-dropzone.has-file {
  border-color: var(--color-success);
  background: oklch(from var(--color-success) l c h / 0.05);
}

.File-dropzone.has-file svg {
  color: var(--color-success);
}

.Output-tab-container {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 16px;
  padding-bottom: 8px;
}

.Output-tab-btn {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.25s, color 0.25s;
}

.Output-tab-btn.active {
  background: var(--color-primary);
  color: #fff;
}

.Output-tab-btn:hover:not(.active) {
  background: oklch(from var(--color-border) l c h / 0.15);
  color: var(--color-text-primary);
}

.Output-preview-box {
  background: oklch(from var(--color-card-bg) l c h / 0.8);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 16px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
}

/* AI Assistant Chat view styles */
.Chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px);
  min-height: 480px;
  background: oklch(from var(--color-card-bg) l c h / 0.4);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}

.Chat-timeline {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.Chat-msg {
  display: flex;
  max-width: 80%;
  flex-direction: column;
  animation: slideUpFade 0.3s ease forwards;
}

@keyframes slideUpFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.Chat-msg.user {
  align-self: flex-end;
}

.Chat-msg.assistant {
  align-self: flex-start;
}

.Chat-bubble {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
  position: relative;
}

.Chat-msg.user .Chat-bubble {
  background: var(--color-primary);
  color: #ffffff;
  border-bottom-right-radius: 2px;
}

.Chat-msg.assistant .Chat-bubble {
  background: oklch(from var(--color-card-bg) l c h / 0.95);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  border-bottom-left-radius: 2px;
}

.Chat-meta {
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.Chat-msg.user .Chat-meta {
  text-align: right;
}

.Chat-input-bar {
  display: flex;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--color-border);
  background: oklch(from var(--color-card-bg) l c h / 0.6);
  align-items: center;
}

.Chat-input-bar input {
  flex: 1;
  height: 42px;
}

.Chat-suggestion-btn {
  background: oklch(from var(--color-card-bg) l c h / 0.8);
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.Chat-suggestion-btn:hover {
  border-color: var(--color-primary);
  background: oklch(from var(--color-primary) l c h / 0.05);
  transform: translateY(-1px);
}

/* --- SaaS Trial Lockout Styles --- */
.trial-expired .Sidebar-nav a:not([data-view="billing"]),
.trial-expired #drawer a:not([data-view="billing"]),
.trial-expired #sidebar-profile-trigger {
  pointer-events: none !important;
  opacity: 0.3 !important;
  filter: grayscale(1);
}