*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f8f7f4;
  --surface: #ffffff;
  --border: rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.18);
  --text: #1a1a18;
  --text-muted: #6b6b67;
  --text-hint: #9b9b97;
  --accent: #4f46e5;
  --accent-light: #eef2ff;
  --accent-alt-light: #e8fcf0;
  --accent-text: #3730a3;
  --accent-alt-text: #057a30;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --success-text: #14532d;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
}

.dark {
  /* Core Backgrounds */
  --bg: #121211;
  /* Deep matte charcoal */
  --surface: #1c1c1a;
  /* Slightly lighter for cards/elevated elements */

  /* Borders */
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);

  /* Typography */
  --text: #ececeb;
  /* Off-white for better eye comfort */
  --text-muted: #a1a19f;
  /* Medium gray */
  --text-hint: #71716e;
  /* Dim gray */

  /* Accent (Indigo) */
  --accent: #6d79e6;
  /* Brightened for dark mode visibility */
  --accent-light: #1e1b4b;
  --accent-alt-light: #052412;
  /* Deep navy background */
  --accent-text: #c7d2fe;
  /* Soft lilac/indigo text */
  --accent-alt-text: #22c55e;
  /* Success (Green) */
  --success: #22c55e;
  --success-light: #052e16;
  --success-text: #86efac;

  /* Warning (Amber) */
  --warning: #fbbf24;
  --warning-light: #451a03;

  /* Danger (Red) */
  --danger: #f87171;
  --danger-light: #450a0a;

  /* Radii (Keeping these consistent) */
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows - Dark mode shadows need to be heavier/darker to be seen */
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

body {
  /* font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; */
  background: var(--bg);
  color: var(--text);
  /* font-size: 15px;
  line-height: 1.6; */
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--bg);
  border-bottom: none;
}


/* Role toggle */
.role-toggle {
  display: flex;
  background: var(--bg);
  border: 0.5px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.role-btn {
  padding: 4px 14px;
  border-radius: 999px;
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

@media (max-width: 360px) {
  .role-btn {
    font-size: 11px;
    padding: 4px 8px;
  }
}

@media (max-width: 330px) {
  .role-btn {
    font-size: 11px;
    padding: 4px 4px;
  }
}

@media (max-width: 315px) {
  .role-btn {
    font-size: 10px;
    padding: 4px 2px;
  }
}

@media (max-width: 295px) {
  .role-toggle {
    display: none;
  }
}

.role-btn.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

.role-toggle.hidden {
  display: none !important;
}

/* Layout */
.page {
  background-color: var(--bg);
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
}

.page-sm {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* Cards */
.card {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.card-lg {
  padding: 28px;
}

/* Grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 768px) {

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .stat-card .stat-label {
    min-width: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 16px !important;
    white-space: nowrap;

  }

  .student-link-btn {
    max-width: 100px;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .student-progress-table .sticky-assignments {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .student-progress-table .sticky-student {
    padding-right: 0 !important;
  }

  .summary-card,
  .stat-card {
    background: color-mix(in srgb, var(--surface) 50%, var(--bg) 50%) !important;
  }

}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 0.5px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: #4338ca;
  border-color: #4338ca;
}

.btn-sm {
  padding: 5px 12px;
  font-size: 13px;
}

.btn-ghost {
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--bg);
  border-color: var(--border);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.badge-purple {
  background: #eef2ff;
  color: #4338ca;
}

.badge-green {
  background: var(--success-light);
  color: var(--success-text);
}

.badge-amber {
  background: var(--warning-light);
  color: #92400e;
}

.badge-gray {
  background: var(--bg);
  color: var(--text-muted);
}

.badge-red {
  background: var(--danger-light);
  color: #991b1b;
}

.dark .badge-purple {
  background-color: rgba(67, 56, 202, 0.22);
  color: #c7d2fe;
}

.dark .badge-green {
  background-color: rgba(30, 70, 32, 0.4);
  color: #81c995;
}

.dark .badge-amber {
  background-color: rgba(102, 60, 0, 0.4);
  color: #fdd663;
}

.dark .badge-gray {
  background: var(--bg);
  color: var(--text-muted);
}

.dark .badge-red {
  background-color: rgba(92, 10, 10, 0.4);
  color: #f28b82;
}

/* .dark .feedback.correct {
  background: var(--success-light);
  color: var(--success-text);
  border: 0.5px solid rgba(34, 197, 94, 0.35);
}

.dark .feedback.wrong {
  background: var(--danger-light);
  color: var(--danger);
  border: 0.5px solid rgba(248, 113, 113, 0.35);
}

.dark .feedback.hint {
  background: var(--warning-light);
  color: var(--warning);
  border: 0.5px solid rgba(251, 191, 36, 0.35);
} */
/* Form elements */
.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 5px;
}

input[type=url],
input[type=text],
input[type=email],
textarea,
select {
  width: 100%;
  padding: 8px 12px;
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}

input[type=url]:focus,
input[type=text]:focus,
input[type=email]:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.08);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* Divider */
.divider {
  border: none;
  border-top: 0.5px solid var(--border);
  margin: 20px 0;
}

/* Section header */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 17px;
  font-weight: 600;
}

/* Empty state */
.empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.empty p {
  font-size: 14px;
  margin-top: 6px;
}

/* List items */
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 0.5px solid var(--border);
  gap: 12px;
}

.list-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.list-item:first-child {
  padding-top: 0;
}

/* Progress bar */
.progress-bar {
  height: 6px;
  background: var(--bg);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.3s;
}

.progress-fill.green {
  background: var(--success);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  max-height: 90%;
  overflow-y: auto;
}

.modal h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.modal-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
}

.hidden {
  display: none !important;
}

/* Stat cards */
.stat-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat-card .stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-card .stat-val {
  font-size: 26px;
  font-weight: 600;
  color: var(--text);
}

/* Avatar */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}

.avatar-purple {
  background: #eef2ff;
  color: #4338ca;
}

.avatar-teal {
  background: #f0fdf4;
  color: #15803d;
}

.avatar-coral {
  background: #fff7ed;
  color: #c2410c;
}

.avatar-pink {
  background: #fdf2f8;
  color: #9d174d;
}

/* Code editor */
.editor-wrap {
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  /* background: #1e1e2e; */

}

.dark .editor-wrap {
  /* background: #1e1e2e; */
}

.editor-bar {
  background: #f3f4f6;
  border-bottom: 0.5px solid var(--border);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.editor-bar span {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.dark .editor-bar {
  background: #282829;
}

#code-editor {
  display: block;
  width: 100%;
  min-height: 220px;
  padding: 16px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 13.5px;
  line-height: 1.7;
  border: none;
  outline: none;
  background: #1e1e2e;
  color: #cdd6f4;
  resize: vertical;
  tab-size: 4;
  border-radius: 0;
  margin: 0;
}

/* .dark #code-editor {
  background: #1e242e;
} */
.output-box {
  background: #13131f;
  color: #a6e3a1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  padding: 14px 16px;
  min-height: 64px;
  border-radius: var(--radius);
  white-space: pre-wrap;
  margin-top: 12px;
  border: 0.5px solid rgba(255, 255, 255, 0.06);
}

.dark .output-box {
  background: #1e1e2e;
}

.output-box.error {
  color: #f38ba8;
}

/* Feedback banner */
.feedback {
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feedback.correct {
  background: var(--success-light);
  color: var(--success-text);
  border: 0.5px solid #bbf7d0;
}

.feedback.wrong {
  background: var(--danger-light);
  color: #991b1b;
  border: 0.5px solid #fecaca;
}

.feedback.hint {
  background: var(--warning-light);
  color: #92400e;
  border: 0.5px solid #fde68a;
}

.dark .feedback.correct {
  background: var(--success-light);
  color: var(--success-text);
  border: 0.5px solid rgba(34, 197, 94, 0.35);
}

.dark .feedback.wrong {
  background: var(--danger-light);
  color: var(--danger);
  border: 0.5px solid rgba(248, 113, 113, 0.35);
}

.dark .feedback.hint {
  background: var(--warning-light);
  color: var(--warning);
  border: 0.5px solid rgba(251, 191, 36, 0.35);
}

/* Assignment step list */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.1s;
  font-size: 14px;
  border: 0.5px solid transparent;
}


.step-label {
  text-align: left;
}

.submission-output,
.submitted-answer-value {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.step-item:hover {
  background: var(--bg);
}

.step-item.active {
  background: var(--accent-light);
  color: var(--accent-text);
  font-weight: 500;
  border: 0.5px solid #c7d2fe;
}

.dark .step-item.active {
  background: var(--accent-light);
  color: var(--accent-text);
  font-weight: 500;
  border: 0.5px solid #444858;
}

.step-item.done {
  color: var(--text-muted);
}

.step-label {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.step-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}

.step-item.active .step-dot {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.step-item.done .step-dot {
  border-color: var(--success);
  background: var(--success);
  color: white;
}

/* Pill tabs */
.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 0.5px solid var(--border);
  width: fit-content;
}

.tab {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s;
  border: none;
  background: transparent;
}

.tab.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

/* Notification dot */
.notif {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: middle;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #1a1a18;
  color: white;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  z-index: 999;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
}

/* Checkerboard for empty avatars */
.class-color-0 {
  background: #eef2ff;
  color: #4338ca;
}

.class-color-1 {
  background: #f0fdf4;
  color: #15803d;
}

.class-color-2 {
  background: #fff7ed;
  color: #c2410c;
}

.class-color-3 {
  background: #fdf2f8;
  color: #9d174d;
}

.class-color-4 {
  background: #ecfdf5;
  color: #065f46;
}


.icon-ellipsis-btn {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: none;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: background .15s, color .15s, border-color .15s;
}

.icon-ellipsis-btn:hover {
  background: var(--bg);
  color: var(--text);
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  background: var(--bg);
  color: var(--text-muted);
  border: 0.5px solid var(--border);
}

.meta-pill.warn {
  background: var(--warning-light);
  color: #92400e;
}

.meta-pill.danger {
  background: var(--danger-light);
  color: #991b1b;
}

.meta-pill.success {
  background: var(--success-light);
  color: var(--success-text);
}









.learn-cal-wrap {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
}

.learn-cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px 14px;
  border-bottom: 0.5px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}

.learn-cal-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  /* width: 100%; */
}

.learn-cal-title {
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  min-width: 160px;
  text-align: center;
  width: 100%;
}

.learn-cal-nav-btn,
.learn-cal-today-btn {
  background: none;
  border: 0.5px solid var(--border-strong);
  color: var(--text-muted);
  font-family: inherit;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.learn-cal-nav-btn {
  border-radius: 8px;
  width: 30px;
  height: 30px;
  min-width: 30px;
  min-height: 30px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.learn-cal-today-btn {
  border-radius: 8px;
  padding: 0 12px;
  height: 30px;
  cursor: pointer;
  font-size: 12px;
}

.learn-cal-nav-btn:hover,
.learn-cal-today-btn:hover {
  background: var(--bg);
  color: var(--text);
}

.learn-cal-legend {
  display: flex;
  align-items: center;
  gap: 10px 14px;
  padding: 10px 22px 12px;
  flex-wrap: wrap;
  display: none;
}

.learn-cal-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--text-muted);
}

.learn-cal-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.learn-cal-dot--code {
  background: #7F77DD;
}

.learn-cal-dot--project {
  background: #639922;
}

.learn-cal-dot--multiple-choice {
  background: #378ADD;
}

.learn-cal-dot--true-false {
  background: #4F8EF7;
}

.learn-cal-dot--multiple-response {
  background: #2F6DCB;
}

.learn-cal-dot--sequence {
  background: #8B5CF6;
}

.learn-cal-dot--fill-blank {
  background: #0EA5A4;
}

.learn-cal-dot--short-answer {
  background: #F59E0B;
}

.learn-cal-dot--essay {
  background: #C27A1A;
}

.learn-cal-dot--default {
  background: #888780;
}

.learn-cal-dot--overdue {
  background: #E24B4A;
}

.learn-cal-grid-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  border-bottom: 0.5px solid var(--border);
}

.learn-cal-day-label {
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 0;
  letter-spacing: 0.04em;
}

.learn-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.learn-cal-cell {
  min-height: 80px;
  border-right: 0.5px solid color-mix(in srgb, var(--border) 72%, transparent 28%);
  border-bottom: 0.5px solid color-mix(in srgb, var(--border) 72%, transparent 28%);
  padding: 6px 6px 5px;
  cursor: pointer;
  transition: background 0.1s;
  background: var(--surface);
  text-align: left;
  appearance: none;
  font: inherit;
  min-width: 0;
  overflow: hidden;
}

.learn-cal-cell:nth-child(7n) {
  border-right: none;
}

.learn-cal-cell.other-month .learn-cal-day-num {
  color: var(--text-hint);
}

.learn-cal-cell.today .learn-cal-day-num {
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
}

.learn-cal-cell.selected {
  background: color-mix(in srgb, var(--surface) 72%, var(--accent-light) 50%);
  outline: 0.5px solid color-mix(in srgb, var(--accent) 30%, var(--surface) 50%);
  outline-offset: -1px;
}

.dark .learn-cal-cell.selected {
  background: color-mix(in srgb, var(--surface) 72%, var(--accent-light) 30%);
  outline: 0.5px solid color-mix(in srgb, var(--accent) 50%, var(--surface) 50%);
  outline-offset: -1px;
}

.learn-cal-cell:hover {
  background: color-mix(in srgb, var(--surface) 72%, var(--accent-light) 50%);
}

.dark .learn-cal-cell:hover {
  background: color-mix(in srgb, var(--surface) 72%, var(--accent-light) 30%);
}

.learn-cal-day-num {
  font-size: 12px;
  color: var(--text);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 3px;
}

.learn-cal-pill {
  font-size: 10px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 2px;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  line-height: 1.4;
}


.learn-cal-pill--code {
  background: #EEEDFE;
  color: #3C3489;
}

.learn-cal-pill--project {
  background: #EAF3DE;
  color: #27500A;
}

.learn-cal-pill--multiple-choice {
  background: #E6F1FB;
  color: #0C447C;
}

.learn-cal-pill--true-false {
  background: #E8F0FE;
  color: #1D4ED8;
}

.learn-cal-pill--multiple-response {
  background: #E4EEFB;
  color: #1E40AF;
}

.learn-cal-pill--sequence {
  background: #F1EAFE;
  color: #6D28D9;
}

.learn-cal-pill--fill-blank {
  background: #DCF8F6;
  color: #0F766E;
}

.learn-cal-pill--short-answer {
  background: #FEF3C7;
  color: #92400E;
}

.learn-cal-pill--essay {
  background: #FAEEDA;
  color: #633806;
}

.learn-cal-pill--default {
  background: #f1efe8;
  color: #5f5e5a;
}

.learn-cal-pill--overdue {
  background: #FCEBEB;
  color: #791F1F;
}

.learn-cal-more-pill {
  font-size: 10px;
  color: var(--text-muted);
  padding: 1px 4px;
  cursor: pointer;
}

.learn-cal-panel {
  padding: 20px 22px 22px;
  border-top: 0.5px solid var(--border);
  min-height: 140px;
}

.learn-cal-panel-date {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 12px;
}

.learn-cal-panel-empty {
  font-size: 13px;
  color: var(--text-hint);
  padding: 12px 0;
}

.learn-cal-panel-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.learn-cal-panel-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 0.5px solid var(--border);
  background: color-mix(in srgb, var(--surface) 72%, var(--bg) 28%);
  width: 100%;
  text-align: left;
  cursor: pointer;
  appearance: none;
  font: inherit;
  transition: background 0.12s, border-color 0.12s;
}

.learn-cal-panel-item:hover {
  background: color-mix(in srgb, var(--surface) 60%, var(--bg) 40%);
  border-color: var(--border-strong);
}

.learn-cal-item-color {
  width: 3px;
  border-radius: 3px;
  align-self: stretch;
  min-height: 36px;
  flex-shrink: 0;
}

.learn-cal-item-color--code {
  background: #7F77DD;
}

.learn-cal-item-color--project {
  background: #639922;
}

.learn-cal-item-color--multiple-choice {
  background: #378ADD;
}

.learn-cal-item-color--true-false {
  background: #4F8EF7;
}

.learn-cal-item-color--multiple-response {
  background: #2F6DCB;
}

.learn-cal-item-color--sequence {
  background: #8B5CF6;
}

.learn-cal-item-color--fill-blank {
  background: #0EA5A4;
}

.learn-cal-item-color--short-answer {
  background: #F59E0B;
}

.learn-cal-item-color--essay {
  background: #C27A1A;
}

.learn-cal-item-color--default {
  background: #888780;
}

.learn-cal-item-color--overdue {
  background: #E24B4A;
}

.learn-cal-item-body {
  flex: 1;
  min-width: 0;
}

.learn-cal-item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.learn-cal-item-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.learn-cal-item-badge {
  font-size: 10px;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 5px;
  margin-left: auto;
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: 1px;
}

.learn-cal-item-badge--code {
  background: #EEEDFE;
  color: #3C3489;
}

.learn-cal-item-badge--project {
  background: #EAF3DE;
  color: #27500A;
}

.learn-cal-item-badge--multiple-choice {
  background: #E6F1FB;
  color: #0C447C;
}

.learn-cal-item-badge--true-false {
  background: #E8F0FE;
  color: #1D4ED8;
}

.learn-cal-item-badge--multiple-response {
  background: #E4EEFB;
  color: #1E40AF;
}

.learn-cal-item-badge--sequence {
  background: #F1EAFE;
  color: #6D28D9;
}

.learn-cal-item-badge--fill-blank {
  background: #DCF8F6;
  color: #0F766E;
}

.learn-cal-item-badge--short-answer {
  background: #FEF3C7;
  color: #92400E;
}

.learn-cal-item-badge--essay {
  background: #FAEEDA;
  color: #633806;
}

.learn-cal-item-badge--default {
  background: #f1efe8;
  color: #5f5e5a;
}

.learn-cal-item-badge--overdue {
  background: #FCEBEB;
  color: #791F1F;
}

.learn-cal-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 14px 150px 14px 22px;
}

.learn-cal-stat-card {
  background: color-mix(in srgb, var(--surface) 74%, var(--bg) 26%);
  border-radius: 10px;
  padding: 10px 12px;
}

.learn-cal-stat-val {
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
}

.learn-cal-stat-val--accent {
  color: var(--accent);
}

.learn-cal-stat-val--accent-2 {
  color: #3C3489;
}

.learn-cal-stat-val--danger {
  color: var(--danger);
}

.learn-cal-stat-lbl {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 1px;
}

@media (max-width: 900px) {
  .learn-cal-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .learn-cal-header {
    align-items: flex-start;
  }

  .learn-cal-title {
    min-width: 120px;
  }

  .learn-cal-cell {
    min-height: 72px;
  }

  .learn-cal-stats-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .learn-cal-mode-toggle-btn {
    top: 12px;
    right: 14px;
  }

  .learn-cal-stats-row {
    padding: 56px 14px 14px;
    grid-template-columns: 1fr;
  }
}


.dark .learn-cal-wrap {
  background: var(--surface);
  border-color: var(--border);
}

.dark .learn-cal-header,
.dark .learn-cal-grid-header,
.dark .learn-cal-panel {
  border-color: var(--border);
}

.dark .learn-cal-nav-btn,
.dark .learn-cal-today-btn {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-muted);
}

.dark .learn-cal-nav-btn:hover,
.dark .learn-cal-today-btn:hover {
  background: #282829;
  color: var(--text);
}

.dark .learn-cal-cell {
  background: var(--surface);
  border-right-color: rgba(255, 255, 255, 0.06);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

/* .dark .learn-cal-cell:hover {
  background: #232321;
} */

/* .dark .learn-cal-cell.selected {
  background: rgba(109, 121, 230, 0.18);
} */

.dark .learn-cal-cell.other-month .learn-cal-day-num {
  color: #6f6f6a;
}

.dark .learn-cal-cell.today .learn-cal-day-num {
  background: var(--accent);
  color: #fff;
}

.dark .learn-cal-stat-card {
  background: #232321;
}

.dark .learn-cal-panel-item {
  background: #232321;
  border-color: var(--border);
}

.dark .learn-cal-panel-item:hover {
  background: #282829;
  border-color: var(--border-strong);
}

.dark .learn-cal-more-pill {
  color: var(--text-hint);
}

/* Compiler */
.dark .learn-cal-pill--code,
.dark .learn-cal-item-badge--code {
  background: rgba(127, 119, 221, 0.18);
  color: #c9c3ff;
}

/* Project */
.dark .learn-cal-pill--project,
.dark .learn-cal-item-badge--project {
  background: rgba(99, 153, 34, 0.18);
  color: #b8e986;
}

/* Multiple choice */
.dark .learn-cal-pill--multiple-choice,
.dark .learn-cal-item-badge--multiple-choice {
  background: rgba(55, 138, 221, 0.18);
  color: #9dd0ff;
}

/* True / False */
.dark .learn-cal-pill--true-false,
.dark .learn-cal-item-badge--true-false {
  background: rgba(79, 142, 247, 0.18);
  color: #aecdff;
}

/* Select all that apply */
.dark .learn-cal-pill--multiple-response,
.dark .learn-cal-item-badge--multiple-response {
  background: rgba(47, 109, 203, 0.18);
  color: #9bbcff;
}

/* Sequence */
.dark .learn-cal-pill--sequence,
.dark .learn-cal-item-badge--sequence {
  background: rgba(139, 92, 246, 0.18);
  color: #d2b8ff;
}

/* Fill in the blank */
.dark .learn-cal-pill--fill-blank,
.dark .learn-cal-item-badge--fill-blank {
  background: rgba(14, 165, 164, 0.18);
  color: #97f1ec;
}

/* Short answer */
.dark .learn-cal-pill--short-answer,
.dark .learn-cal-item-badge--short-answer {
  background: rgba(245, 158, 11, 0.18);
  color: #ffd08a;
}

/* Essay */
.dark .learn-cal-pill--essay,
.dark .learn-cal-item-badge--essay {
  background: rgba(194, 122, 26, 0.18);
  color: #f0c27d;
}

/* Default */
.dark .learn-cal-pill--default,
.dark .learn-cal-item-badge--default {
  background: rgba(136, 135, 128, 0.18);
  color: #d2d0c9;
}

/* Overdue */
.dark .learn-cal-pill--overdue,
.dark .learn-cal-item-badge--overdue {
  background: rgba(226, 75, 74, 0.18);
  color: #ffadad;
}


.learn-cal-cell.other-month .learn-cal-pill {
  opacity: 0.5;
}

.dark .learn-cal-cell.other-month .learn-cal-pill {
  opacity: 0.5;
}












.learn-cal-mode-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.learn-cal-mode-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
}

.learn-cal-wrap {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  position: relative;
}

.learn-cal-mode-toggle-btn {
  position: absolute;
  top: 14px;
  right: 22px;
  z-index: 4;
  background: none;
  border: 0.5px solid var(--border-strong);
  border-radius: 8px;
  padding: 0 12px;
  height: 32px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-muted);
  font-family: inherit;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.learn-cal-mode-toggle-btn:hover {
  background: var(--bg);
  color: var(--text);
}

.learn-cal-simple {
  padding: 0 22px 18px;
}

.learn-cal-simple-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.learn-cal-simple-cell {
  min-width: 132px;
  max-width: 132px;
  flex: 0 0 132px;
  min-height: 118px;
  border-radius: 12px;
  border: 0.5px solid var(--border);
}

.learn-cal-simple-cell {
  border-right: 0.5px solid var(--border) !important;
  border-bottom: 0.5px solid var(--border) !important;
}

.learn-cal-simple-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 2px;
}

.learn-cal-simple-weekday {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
}

.learn-cal-simple-date {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.learn-cal-simple-panel {
  padding: 0 22px 22px;
}

.learn-cal-simple-empty {
  padding: 6px 0 2px;
  font-size: 13px;
  color: var(--text-muted);
}

.dark .learn-cal-mode-toggle-btn {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-muted);
}

.dark .learn-cal-mode-toggle-btn:hover {
  background: #282829;
  color: var(--text);
}