/* ========================================================
   CourseFlow — style.css
   Design: Deep navy shell + electric indigo accent
   Typography: Inter (variable weight)
   ======================================================== */

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Palette */
  --navy-950:  #0a0e1a;
  --navy-900:  #0f1629;
  --navy-800:  #151d38;
  --navy-700:  #1e2a4a;
  --navy-600:  #263354;
  --navy-400:  #4a5980;
  --navy-300:  #6b7aaa;
  --navy-200:  #94a3c8;
  --navy-100:  #c8d0e8;
  --navy-50:   #eef1f8;

  --indigo:    #6366f1;
  --indigo-dk: #4f46e5;
  --indigo-lt: #a5b4fc;
  --indigo-bg: rgba(99, 102, 241, 0.1);

  --surface:   #111827;
  --surface-2: #1a2236;
  --surface-3: #1f2b42;
  --border:    rgba(255,255,255,0.07);
  --border-md: rgba(255,255,255,0.12);

  --text-primary:   #f0f4ff;
  --text-secondary: #8fa3c8;
  --text-muted:     #5a6b8a;

  /* Status colours */
  --green:  #10b981;
  --green-bg: rgba(16,185,129,0.12);
  --amber:  #f59e0b;
  --amber-bg: rgba(245,158,11,0.12);
  --blue:   #3b82f6;
  --blue-bg: rgba(59,130,246,0.12);
  --red:    #ef4444;
  --red-bg: rgba(239,68,68,0.12);

  /* Spacing */
  --sidebar-w: 240px;
  --topbar-h:  64px;

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.35), 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 0 3px rgba(99,102,241,0.3);
}

html { font-size: 15px; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--navy-950);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select { font-family: inherit; }
.hidden { display: none !important; }

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--navy-600); border-radius: 10px; }

/* ========================================================
   SIDEBAR
   ======================================================== */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--navy-900);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.28s cubic-bezier(0.4,0,0.2,1);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px;
  height: var(--topbar-h);
  border-bottom: 1px solid var(--border);
}

.logo-icon {
  width: 36px; height: 36px;
  background: var(--indigo);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 16px rgba(99,102,241,0.4);
}

.logo-text {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.sidebar-nav {
  flex: 1;
  padding: 24px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0 10px;
  margin-bottom: 8px;
  display: block;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy-300);
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover {
  background: var(--navy-800);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--indigo-bg);
  color: var(--indigo-lt);
  font-weight: 600;
}

.nav-item svg { flex-shrink: 0; }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--r-sm);
}

.user-avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--indigo), var(--indigo-dk));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  display: block;
  color: var(--text-primary);
}

.user-role {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
}

/* ========================================================
   MAIN WRAPPER + TOPBAR
   ======================================================== */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: var(--topbar-h);
  background: var(--navy-900);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 90;
  gap: 16px;
}

.topbar-left { display: flex; align-items: center; gap: 14px; }

.menu-toggle {
  width: 36px; height: 36px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  transition: background 0.15s;
  display: none;
}

.menu-toggle:hover { background: var(--surface-3); }

.page-breadcrumb {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.topbar-right { display: flex; align-items: center; gap: 10px; }

/* ========================================================
   BUTTONS
   ======================================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--indigo);
  color: #fff;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--r-sm);
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  letter-spacing: -0.01em;
  box-shadow: 0 1px 3px rgba(99,102,241,0.4);
}

.btn-primary:hover {
  background: var(--indigo-dk);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 500;
  padding: 9px 16px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-md);
  transition: background 0.15s, color 0.15s;
}

.btn-ghost:hover {
  background: var(--surface-3);
  color: var(--text-primary);
}

.btn-icon {
  width: 30px; height: 30px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  transition: background 0.15s, color 0.15s;
}

.btn-icon--red { color: var(--red); }
.btn-icon--red:hover { background: var(--red-bg); }
.btn-icon--blue { color: var(--blue); }
.btn-icon--blue:hover { background: var(--blue-bg); }

/* ========================================================
   PAGE CONTENT
   ======================================================== */
.page-content {
  flex: 1;
  padding: 32px 28px 48px;
  max-width: 1280px;
  width: 100%;
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.section-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1.2;
}

.section-title-sm {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.section-sub {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ========================================================
   STATS GRID
   ======================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color 0.2s, transform 0.2s;
}

.stat-card:hover {
  border-color: var(--border-md);
  transform: translateY(-2px);
}

.stat-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.stat-icon--blue   { background: var(--blue-bg);   color: var(--blue); }
.stat-icon--indigo { background: var(--indigo-bg);  color: var(--indigo-lt); }
.stat-icon--amber  { background: var(--amber-bg);   color: var(--amber); }
.stat-icon--green  { background: var(--green-bg);   color: var(--green); }

.stat-body { display: flex; flex-direction: column; }

.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 4px;
  font-weight: 500;
}

/* ========================================================
   PROGRESS
   ======================================================== */
.progress-section {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  margin-bottom: 8px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.progress-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.progress-pct {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--indigo-lt);
}

.progress-bar-track {
  height: 8px;
  background: var(--navy-700);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--indigo), #a78bfa);
  border-radius: 99px;
  width: 0%;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* ========================================================
   COURSES GRID (dashboard cards)
   ======================================================== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}

.course-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 0;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  cursor: default;
}

.course-card:hover {
  border-color: var(--border-md);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-accent-bar {
  height: 4px;
  border-radius: 0;
}

.card-body {
  padding: 20px 22px;
}

.card-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
}

.card-course-icon {
  width: 40px; height: 40px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

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

.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-code {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.card-stats-row {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
}

.card-stat-pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 99px;
  background: var(--surface-3);
  color: var(--text-secondary);
}

.card-add-task-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 7px 12px;
  border-radius: var(--r-sm);
  border: 1px dashed var(--border-md);
  width: 100%;
  justify-content: center;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.card-add-task-btn:hover {
  background: var(--indigo-bg);
  color: var(--indigo-lt);
  border-color: var(--indigo);
}

/* ========================================================
   COURSE SECTION (full list view)
   ======================================================== */
.course-section {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  margin-bottom: 20px;
  overflow: hidden;
}

.course-section-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}

.section-accent-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.section-course-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  flex: 1;
}

.section-course-code {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.section-task-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-3);
  padding: 3px 10px;
  border-radius: 99px;
}

.course-section-body {
  padding: 0 22px;
}

.assignment-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.assignment-row:last-child { border-bottom: none; }

.assign-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 2px solid var(--navy-600);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.assign-check.done {
  background: var(--green);
  border-color: var(--green);
}

.assign-check.done::after {
  content: '';
  width: 6px; height: 10px;
  border: 2px solid #fff;
  border-top: none; border-left: none;
  transform: rotate(45deg) translate(-1px, -2px);
  display: block;
}

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

.assign-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.assign-title.strikethrough {
  text-decoration: line-through;
  color: var(--text-muted);
}

.assign-deadline {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.assign-deadline.overdue { color: var(--red); }

.assign-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Status select as a styled badge */
.status-select {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 99px;
  border: none;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238fa3c8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 7px center;
  padding-right: 22px;
  transition: opacity 0.15s;
}

.status-select:hover { opacity: 0.85; }

.status-select.status-open {
  background-color: var(--amber-bg);
  color: var(--amber);
}

.status-select.status-inprogress {
  background-color: var(--blue-bg);
  color: var(--blue);
}

.status-select.status-done {
  background-color: var(--green-bg);
  color: var(--green);
}

/* Priority badge */
.priority-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 99px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.priority-badge.Low    { background: rgba(148,163,200,0.12); color: var(--navy-200); }
.priority-badge.Medium { background: var(--amber-bg);  color: var(--amber); }
.priority-badge.High   { background: var(--red-bg);    color: var(--red); }

.assign-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* Add task row inside section */
.add-assignment-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0 14px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s;
  border-top: 1px solid var(--border);
}

.course-section-body:empty + .add-assignment-row,
.add-assignment-row { border-top: none; }

.add-assignment-row:hover { color: var(--indigo-lt); }

/* ========================================================
   EMPTY STATE
   ======================================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  background: var(--surface-2);
  border: 1px dashed var(--border-md);
  border-radius: var(--r-xl);
  gap: 10px;
}

.empty-icon { color: var(--navy-600); margin-bottom: 4px; }

.empty-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.empty-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 320px;
  line-height: 1.5;
}

/* ========================================================
   MODAL
   ======================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 18, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
}

.modal {
  background: var(--surface-2);
  border: 1px solid var(--border-md);
  border-radius: var(--r-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.93) translateY(12px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
  margin-bottom: 18px;
}

.modal-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.modal-close {
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  font-size: 1.3rem;
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, color 0.15s;
}

.modal-close:hover {
  background: var(--surface-3);
  color: var(--text-primary);
}

.modal-body {
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 20px 24px;
}

/* ---------- FORMS ---------- */
.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.form-label .optional {
  font-weight: 400;
  color: var(--text-muted);
}

.form-input {
  width: 100%;
  background: var(--navy-800);
  border: 1px solid var(--border-md);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus {
  border-color: var(--indigo);
  box-shadow: var(--shadow-glow);
}

.form-input::placeholder { color: var(--text-muted); }

select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238fa3c8' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group { display: flex; flex-direction: column; }

/* Color picker */
.color-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.color-swatch {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  transition: transform 0.15s, border-color 0.15s;
  flex-shrink: 0;
}

.color-swatch:hover { transform: scale(1.15); }

.color-swatch.active {
  border-color: #fff;
  transform: scale(1.15);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.3);
}

/* ========================================================
   RESPONSIVE
   ======================================================== */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 240px; }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .menu-toggle { display: flex; }

  .page-content { padding: 20px 16px 40px; }

  .topbar { padding: 0 16px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

  .stat-value { font-size: 1.5rem; }

  .section-title { font-size: 1.3rem; }

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

  .assign-badges { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }

  .stat-card { padding: 14px; gap: 10px; }

  .stat-icon { width: 36px; height: 36px; }

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

/* ========================================================
   TOAST NOTIFICATION
   ======================================================== */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--surface-2);
  border: 1px solid var(--border-md);
  border-radius: var(--r-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  animation: toastIn 0.25s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 320px;
}

.toast.fade-out { animation: toastOut 0.25s forwards; }

.toast-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

.toast-dot.warn { background: var(--red); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  to { opacity: 0; transform: translateY(8px); }
}

/* Overlay for mobile sidebar close */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

.sidebar-overlay.show { display: block; }
/* ========================================================
   RECENT ASSIGNMENTS — Dashboard
   ======================================================== */

.recent-list {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.recent-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
}

.recent-item:last-child {
  border-bottom: none;
}

.recent-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.recent-meta {
  margin-top: 4px;
  font-size: 0.76rem;
  color: var(--text-muted);
}