/* ============================================================
   PLANNING HUB — Design System
   Media · Colchester Institute
   Dark mode (default) + Light mode via [data-theme="light"]
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&display=swap');

/* ── DARK THEME (default) ── */
:root {
  --bg:           #0C0F11;
  --bg-deep:      #090C0E;
  --bg-surface:   #0F1518;
  --bg-hover:     #111820;

  --border:       #1A2228;
  --border-mid:   #1E2830;
  --border-light: #141C22;

  --text-primary:   #EDE8E0;
  --text-secondary: #6B7B85;
  --text-muted:     #4A5A63;
  --text-faint:     #2A3840;

  --accent-orange:  #E8622A;
  --accent-orange-bg: #1A0C08;
  --accent-orange-border: #3A1A10;
  --accent-orange-hover: #D4541F;

  --accent-teal:    #29B6C8;
  --accent-teal-bg: #0A1C24;
  --accent-teal-border: #1A3840;

  --accent-purple:  #A855F7;
  --accent-purple-bg: #140A1E;
  --accent-purple-border: #2A1A3A;

  --accent-green:   #4A9A5A;
  --accent-green-bg: #0A1810;
  --accent-green-border: #1A3020;
}

/* ── LIGHT THEME ── */
:root[data-theme="light"] {
  --bg:           #F0F2F5;
  --bg-deep:      #E4E8EE;
  --bg-surface:   #FFFFFF;
  --bg-hover:     #EBEEf3;

  --border:       #D8DDE6;
  --border-mid:   #C8CED8;
  --border-light: #E2E6ED;

  --text-primary:   #0F1623;
  --text-secondary: #3D4A5C;
  --text-muted:     #64748B;
  --text-faint:     #94A3B8;

  --accent-orange:  #C8510A;
  --accent-orange-bg: #FEF0E6;
  --accent-orange-border: #FDBA74;
  --accent-orange-hover: #B84C00;

  --accent-teal:    #0891A8;
  --accent-teal-bg: #E0F7FA;
  --accent-teal-border: #7DD3E0;

  --accent-purple:  #7C3AED;
  --accent-purple-bg: #F3E8FF;
  --accent-purple-border: #C4B5FD;

  --accent-green:   #16773A;
  --accent-green-bg: #DCFCE7;
  --accent-green-border: #86EFAC;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}

/* Light mode pill overrides for readability */
:root[data-theme="light"] .pill-ns { background:#F1F5F9; border-color:#CBD5E1; color:#475569; }
:root[data-theme="light"] .pill-ip { background:#E0F7FA; border-color:#7DD3E0; color:#005F6B; }
:root[data-theme="light"] .pill-nm { background:#FEF0E6; border-color:#FDBA74; color:#B84C00; }
:root[data-theme="light"] .pill-fn { background:#DCFCE7; border-color:#86EFAC; color:#16773A; }
:root[data-theme="light"] .pill-rr { background:#C8510A; border-color:#C8510A; color:#fff; }

/* Light mode card overrides */
:root[data-theme="light"] .card { box-shadow: 0 1px 3px rgba(0,0,0,0.06); }

/* Light mode chip overrides */
:root[data-theme="light"] .chip-p { background:#E0F7FA; color:#005F6B; border-color:#7DD3E0; }
:root[data-theme="light"] .chip-m { background:#FEF0E6; color:#B84C00; border-color:#FDBA74; }
:root[data-theme="light"] .chip-d { background:#F3E8FF; color:#6D28D9; border-color:#C4B5FD; }

/* Light mode sidebar stays dark — explicit colours so nothing inherits from light body */
:root[data-theme="light"] .sidebar {
  background: #1A1F2E;
  border-right: none;
}
:root[data-theme="light"] .sidebar .brand-label { color: #EDE8E0; }
:root[data-theme="light"] .sidebar .nav-section-label { color: rgba(255,255,255,0.28); }
:root[data-theme="light"] .sidebar .nav-icon { color: rgba(255,255,255,0.35); }
:root[data-theme="light"] .sidebar .nav-label { color: rgba(255,255,255,0.5); }
:root[data-theme="light"] .sidebar .nav-item:hover .nav-icon { color: rgba(255,255,255,0.7); }
:root[data-theme="light"] .sidebar .nav-item:hover .nav-label { color: rgba(255,255,255,0.7); }
:root[data-theme="light"] .sidebar .nav-item.active { background: rgba(41,182,200,0.15); }
:root[data-theme="light"] .sidebar .nav-item.active .nav-icon { color: #29B6C8; }
:root[data-theme="light"] .sidebar .nav-item.active .nav-label { color: #EDE8E0; font-weight: 600; }
:root[data-theme="light"] .sidebar .nav-item:hover { background: rgba(255,255,255,0.06); }
:root[data-theme="light"] .sidebar-footer { border-top-color: rgba(255,255,255,0.06); }
:root[data-theme="light"] .sidebar .user-avatar { background: #29B6C8; color: #fff; }
:root[data-theme="light"] .sidebar .user-name { color: rgba(255,255,255,0.7); }
:root[data-theme="light"] .sidebar .user-role { color: rgba(255,255,255,0.3); }

/* Light mode sidebar hover expand — must re-declare to override any variable changes */


/* Light mode topbar */
:root[data-theme="light"] .topbar {
  background: #FFFFFF;
  border-bottom: 1px solid #D8DDE6;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* Light mode field inputs */
:root[data-theme="light"] .field-input,
:root[data-theme="light"] .field-select,
:root[data-theme="light"] .field-textarea {
  background: #FFFFFF;
  border-color: #C8CED8;
  color: #0F1623;
}
:root[data-theme="light"] .field-input:focus,
:root[data-theme="light"] .field-select:focus,
:root[data-theme="light"] .field-textarea:focus {
  border-color: #0891A8;
}

/* Light mode modal */
:root[data-theme="light"] .modal {
  background: #FFFFFF;
  border-color: #D8DDE6;
  box-shadow: 0 8px 40px rgba(0,0,0,0.14);
}
:root[data-theme="light"] .modal-backdrop {
  background: rgba(15,22,35,0.5);
}

/* Light mode code/drop zones */
:root[data-theme="light"] .code-box { background:#F1F5F9; border-color:#D8DDE6; }
:root[data-theme="light"] .code-box-content { color:#3D4A5C; }
:root[data-theme="light"] .drop-zone { border-color:#C8CED8; background:#F8FAFC; }

/* Light mode avatar */
:root[data-theme="light"] .avatar-muted { background:#E2E8F0; color:#475569; }

/* Light mode empty state */
:root[data-theme="light"] .empty-state { color:#64748B; }

/* Light mode tabs */
:root[data-theme="light"] .tab { color:#64748B; border-bottom-color:#D8DDE6; }
:root[data-theme="light"] .tab.active { color:#0891A8; border-bottom-color:#0891A8; }

/* Light mode view toggle */
:root[data-theme="light"] .vt-btn { background:#F1F5F9; border-color:#D8DDE6; color:#64748B; }
:root[data-theme="light"] .vt-btn.active { background:#0891A8; border-color:#0891A8; color:#fff; }

/* Light mode filter select */
:root[data-theme="light"] .filter-select { background:#FFFFFF; border-color:#C8CED8; color:#0F1623; }

/* Light mode search box */
:root[data-theme="light"] .search-box { background:#FFFFFF; border-color:#C8CED8; }
:root[data-theme="light"] .search-box input { color:#0F1623; }
:root[data-theme="light"] .search-box i { color:#94A3B8; }

/* Light mode tag overrides */
:root[data-theme="light"] .tag-teal   { background:#E0F7FA; color:#005F6B; border-color:#7DD3E0; }
:root[data-theme="light"] .tag-orange { background:#FEF0E6; color:#B84C00; border-color:#FDBA74; }
:root[data-theme="light"] .tag-purple { background:#F3E8FF; color:#6D28D9; border-color:#C4B5FD; }
:root[data-theme="light"] .tag-muted  { background:#F1F5F9; color:#475569; border-color:#CBD5E1; }

/* Light mode summary strip */
:root[data-theme="light"] .summary-strip { background:#F8FAFC; }
:root[data-theme="light"] .summary-card  { background:#FFFFFF; border-color:#D8DDE6; }

/* Light mode table cells */
:root[data-theme="light"] td, [data-theme="light"] th {
  border-color: #E2E6ED;
}

/* Light mode colour strip in cards */
:root[data-theme="light"] .colour-strip { opacity: 0.9; }

/* Light mode btn overrides */
:root[data-theme="light"] .btn-secondary {
  background: #FFFFFF;
  border-color: #C8CED8;
  color: #3D4A5C;
}
:root[data-theme="light"] .btn-secondary:hover {
  background: #F1F5F9;
  border-color: #0891A8;
}
:root[data-theme="light"] .btn-icon {
  color: #64748B;
}
:root[data-theme="light"] .btn-icon:hover {
  background: #F1F5F9;
  color: #0F1623;
}

/* ── LAYOUT & STRUCTURAL TOKENS ── */
:root {
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 10px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);

  --sidebar-collapsed: 56px;
  --sidebar-expanded:  220px;
  --topbar-height:     56px;
  --transition:        0.18s cubic-bezier(0.4,0,0.2,1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
img, svg { display: block; max-width: 100%; }

/* ── TYPOGRAPHY ── */
.eyebrow {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-teal);
}

.page-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

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

.section-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--text-faint);
  text-transform: uppercase;
  padding: 8px 4px 4px;
}

/* ── LAYOUT ── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-collapsed);
  background: var(--bg-deep);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width var(--transition);
  overflow: hidden;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar:hover,
.sidebar.expanded {
  width: var(--sidebar-expanded);
}

.sidebar-brand {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 12px;
  overflow: hidden;
}

.brand-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.brand-label {
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.15s 0.08s;
}

.sidebar:hover .brand-label,
.sidebar.expanded .brand-label { opacity: 1; }

.brand-eyebrow {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent-orange);
  text-transform: uppercase;
}

.brand-name {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  padding: 8px 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-nav::-webkit-scrollbar { width: 0; }

.nav-section-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--text-faint);
  text-transform: uppercase;
  padding: 12px 18px 4px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.15s 0.08s;
  height: 28px;
}

.sidebar:hover .nav-section-label,
.sidebar.expanded .nav-section-label { opacity: 1; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: 40px;
  cursor: pointer;
  position: relative;
  transition: background var(--transition);
  white-space: nowrap;
  overflow: hidden;
  border: none;
  background: transparent;
  width: 100%;
  color: inherit;
}

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

.nav-item.active { background: #0F1C24; }

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--accent-orange);
  border-radius: 0 2px 2px 0;
}

.nav-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: 17px;
  transition: color var(--transition);
}

.nav-item:hover .nav-icon { color: var(--text-secondary); }
.nav-item.active .nav-icon { color: var(--accent-orange); }

.nav-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  opacity: 0;
  transition: color var(--transition), opacity 0.15s 0.08s;
}

.sidebar:hover .nav-label,
.sidebar.expanded .nav-label { opacity: 1; }

.nav-item:hover .nav-label { color: var(--text-secondary); }
.nav-item.active .nav-label { color: var(--text-primary); font-weight: 600; }

.nav-badge {
  margin-left: auto;
  background: var(--accent-orange);
  color: var(--text-primary);
  font-size: 9px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  opacity: 0;
  transition: opacity 0.15s 0.08s;
}

.sidebar:hover .nav-badge,
.sidebar.expanded .nav-badge { opacity: 1; }

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: 8px 0;
  flex-shrink: 0;
}

/* MAIN AREA */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin-left: var(--sidebar-collapsed);
  transition: margin-left var(--transition);
}

/* TOPBAR */
.topbar {
  height: var(--topbar-height);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  flex-shrink: 0;
  background: #0A0D0F;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-page { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.topbar-eyebrow { font-size: 9px; font-weight: 600; letter-spacing: 0.2em; color: var(--accent-teal); text-transform: uppercase; }
.topbar-title { font-size: 14px; font-weight: 700; color: var(--text-primary); letter-spacing: 0.02em; text-transform: uppercase; }

.topbar-divider { width: 1px; height: 28px; background: var(--border); flex-shrink: 0; }

.class-context {
  display: flex;
  flex-direction: column;
  gap: 2px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: border-color var(--transition), background var(--transition);
}

.class-context:hover { border-color: var(--accent-teal); background: #0F1C24; }
.class-context-label { font-size: 9px; font-weight: 600; letter-spacing: 0.16em; color: var(--text-muted); text-transform: uppercase; }
.class-context-value { display: flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; color: var(--text-primary); letter-spacing: 0.04em; }
.class-context-value i { color: var(--accent-teal); font-size: 12px; }

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

/* ── THEME TOGGLE ── */
.theme-toggle-wrap { display: flex; align-items: center; gap: 6px; padding: 0 4px; }
.theme-toggle {
  width: 36px; height: 20px;
  background: var(--bg-deep); border: 1px solid var(--border-mid);
  border-radius: 10px; position: relative; cursor: pointer;
  transition: background 0.25s, border-color 0.25s; flex-shrink: 0;
}
.theme-toggle[aria-checked="true"] { background: #0891A8; border-color: #0891A8; }
.theme-toggle-thumb {
  position: absolute; top: 2px; left: 2px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--text-faint);
  transition: transform 0.22s cubic-bezier(0.4,0,0.2,1), background 0.22s;
}
.theme-toggle[aria-checked="true"] .theme-toggle-thumb { transform: translateX(16px); background: #fff; }

.notif-btn {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  transition: border-color var(--transition), color var(--transition);
}
.notif-btn:hover { border-color: var(--border-mid); color: var(--text-secondary); }

.user-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color var(--transition);
  position: relative;
}
.user-chip:hover { border-color: var(--border-mid); }

.user-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: #1A2830;
  border: 1px solid var(--accent-teal);
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700;
  color: var(--accent-teal);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.user-name { font-size: 11px; font-weight: 600; color: var(--text-primary); letter-spacing: 0.02em; }
.user-role { font-size: 9px; font-weight: 600; letter-spacing: 0.12em; color: var(--accent-orange); text-transform: uppercase; }

/* USER MENU DROPDOWN */
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 6px;
  min-width: 160px;
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 200;
}
.user-menu.visible { display: block; }
.user-menu-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  font-size: 12px; color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  border: none; background: transparent; width: 100%;
}
.user-menu-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.user-menu-item.danger:hover { color: var(--accent-orange); }
.user-menu-item i { font-size: 14px; }

/* PAGE CONTENT */
.page-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.page-header-left { display: flex; flex-direction: column; gap: 2px; }

.header-actions { display: flex; gap: 8px; align-items: center; }

.rule { height: 1px; background: var(--border); margin-bottom: 20px; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: none;
  transition: background var(--transition), opacity var(--transition);
  white-space: nowrap;
}

.btn i { font-size: 14px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary { background: var(--accent-orange); color: var(--text-primary); }
.btn-primary:hover:not(:disabled) { background: var(--accent-orange-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-mid);
}
.btn-secondary:hover:not(:disabled) { border-color: var(--accent-teal); color: var(--accent-teal); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: none;
}
.btn-ghost:hover { color: var(--text-secondary); }

.btn-sm { padding: 5px 10px; font-size: 9px; }
.btn-icon {
  width: 32px; height: 32px; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  transition: border-color var(--transition), color var(--transition);
}
.btn-icon:hover { border-color: var(--accent-teal); color: var(--accent-teal); }
.btn-icon.danger:hover { border-color: var(--accent-orange); color: var(--accent-orange); }

/* ── FORMS ── */
.field { display: flex; flex-direction: column; gap: 6px; }

.field-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.field-input,
.field-select,
.field-textarea {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 9px 12px;
  font-size: 12px;
  color: var(--text-primary);
  outline: none;
  width: 100%;
  transition: border-color var(--transition);
}

.field-input:focus,
.field-select:focus,
.field-textarea:focus { border-color: var(--accent-teal); }

.field-input::placeholder,
.field-textarea::placeholder { color: var(--text-faint); }

.field-input[type="date"] { color-scheme: dark; }

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

.field-row { display: flex; gap: 10px; }
.field-row .field { flex: 1; }

/* SEARCH BOX */
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 7px 12px;
}
.search-box i { color: var(--text-faint); font-size: 14px; flex-shrink: 0; }
.search-box input {
  background: none; border: none; outline: none;
  font-size: 12px; color: var(--text-primary); width: 100%;
}
.search-box input::placeholder { color: var(--text-faint); }

/* FILTER SELECT */
.filter-select {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 7px 12px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  outline: none;
  cursor: pointer;
  text-transform: uppercase;
  transition: border-color var(--transition);
}
.filter-select:focus { border-color: var(--accent-teal); }

/* TOOLBAR */
.toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.results-count {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-left: auto;
}

/* VIEW TOGGLE */
.view-toggle {
  display: flex;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.vt-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px;
  font-size: 10px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer; color: var(--text-muted);
  background: transparent; border: none;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.vt-btn i { font-size: 13px; }
.vt-btn.active { background: var(--border); color: var(--text-primary); }
.vt-btn:hover:not(.active) { color: var(--text-secondary); }

/* ── CARDS & ROWS ── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}
.card:hover { border-color: var(--border-mid); }
.card.highlighted { border-color: var(--accent-teal); }

.card-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
}

.colour-strip {
  width: 3px;
  border-radius: 2px;
  flex-shrink: 0;
  align-self: stretch;
}

/* ── TAGS & CHIPS ── */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid;
}

.tag-teal   { color: var(--accent-teal);   border-color: var(--accent-teal-border);   background: var(--accent-teal-bg); }
.tag-orange { color: var(--accent-orange); border-color: var(--accent-orange-border); background: var(--accent-orange-bg); }
.tag-purple { color: var(--accent-purple); border-color: var(--accent-purple-border); background: var(--accent-purple-bg); }
.tag-green  { color: var(--accent-green);  border-color: var(--accent-green-border);  background: var(--accent-green-bg); }
.tag-muted  { color: var(--text-muted);    border-color: var(--border);               background: transparent; }

/* CRITERIA CHIPS */
.chip {
  display: inline-flex;
  align-items: center;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  border: 1px solid;
}
.chip-p { color: var(--accent-teal);   border-color: var(--accent-teal-border);   background: var(--accent-teal-bg); }
.chip-m { color: var(--accent-orange); border-color: var(--accent-orange-border); background: var(--accent-orange-bg); }
.chip-d { color: var(--accent-purple); border-color: var(--accent-purple-border); background: var(--accent-purple-bg); }
.chip-x { color: var(--text-muted);    border-color: var(--border);               background: transparent; }

/* STATUS PILLS */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  cursor: pointer;
  transition: opacity var(--transition);
  white-space: nowrap;
}
.pill:hover { opacity: 0.8; }
.pill i { font-size: 10px; }

.pill-ns { color: var(--text-muted);    border-color: var(--border);               background: var(--bg); }
.pill-ip { color: var(--accent-teal);   border-color: var(--accent-teal-border);   background: var(--accent-teal-bg); }
.pill-nm { color: var(--accent-orange); border-color: var(--accent-orange-border); background: var(--accent-orange-bg); }
.pill-fn { color: var(--accent-green);  border-color: var(--accent-green-border);  background: var(--accent-green-bg); }
.pill-rr { color: #fff; border-color: var(--accent-orange); background: var(--accent-orange); font-weight: 700; }

/* ROLE TAGS */
.role-tag { display: inline-flex; align-items: center; font-size: 9px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; padding: 3px 9px; border-radius: var(--radius-sm); border: 1px solid; }
.role-admin  { color: var(--accent-teal);   border-color: var(--accent-teal-border);   background: var(--accent-teal-bg); }
.role-tutor  { color: #8B6BAE; border-color: #2A1A3A; background: #140A1E; }
.role-pending{ color: #4A5A40; border-color: #2A3020; background: #141810; }

/* STATUS DOT */
.status-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.dot-active  { background: #2A7A3A; }
.dot-pending { background: #4A5A40; }

/* ── MODAL ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 20px;
}
.modal-backdrop.visible { display: flex; }

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-xl);
  padding: 0;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* Modals without .modal-scroll get padding on all children */
.modal:not(:has(.modal-scroll)) > *:not(.modal-actions):not(.modal-title-row) {
  padding-left: 28px;
  padding-right: 28px;
}

/* Gap between items in non-scroll modals */
.modal:not(:has(.modal-scroll)) {
  gap: 14px;
  padding-bottom: 0;
}

.modal-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 8px 28px 12px;
  display: block;
  width: 100%;
  box-sizing: border-box;
  gap: 14px;
}

.modal-scroll > * {
  display: block;
  width: 100%;
  box-sizing: border-box;
}

.modal-scroll > .field-row {
  display: flex;
}

.modal-scroll > .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modal-actions {
  padding: 14px 28px 22px;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  flex-shrink: 0;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-sm { max-width: 380px; }
.modal-lg { max-width: 680px; max-height: 96vh; }

.modal-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 28px 0;
  flex-shrink: 0;
}

.modal-title { font-size: 16px; font-weight: 800; color: var(--text-primary); text-transform: uppercase; letter-spacing: -0.01em; }
.modal-sub { font-size: 12px; color: var(--text-muted); line-height: 1.6; margin-top: 4px; }
.modal-rule { height: 1px; background: var(--border); }

/* ── TABS ── */
.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab {
  padding: 8px 16px;
  font-size: 10px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
  border: none; background: transparent;
}
.tab:hover { color: var(--text-secondary); }
.tab.active { color: var(--text-primary); border-bottom: 2px solid var(--accent-orange); margin-bottom: -1px; }

/* ── AVATAR ── */
.avatar {
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; letter-spacing: 0.05em;
  flex-shrink: 0;
}
.avatar-sm { width: 26px; height: 26px; font-size: 9px; }
.avatar-md { width: 32px; height: 32px; font-size: 11px; }
.avatar-lg { width: 40px; height: 40px; font-size: 13px; }
.avatar-teal   { background: #1A2830; border: 1px solid var(--accent-teal);   color: var(--accent-teal); }
.avatar-purple { background: #1A1420; border: 1px solid #4A3860;              color: #8B6BAE; }
.avatar-muted  { background: #1A2228; border: 1px solid var(--border-mid);    color: var(--text-secondary); }

/* ── DROP ZONE ── */
.drop-zone {
  border: 1px dashed var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  text-align: center;
}
.drop-zone:hover { border-color: var(--accent-teal); background: var(--accent-teal-bg); }
.drop-zone i { font-size: 26px; color: var(--text-faint); }
.drop-zone-title { font-size: 12px; font-weight: 600; color: var(--text-secondary); }
.drop-zone-sub { font-size: 10px; color: var(--text-faint); letter-spacing: 0.06em; text-transform: uppercase; }

/* CODE FORMAT BOX */
.code-box {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}
.code-box-label { font-size: 9px; font-weight: 600; letter-spacing: 0.16em; color: var(--text-muted); text-transform: uppercase; margin-bottom: 8px; }
.code-box-content { font-size: 10px; color: var(--accent-teal); font-family: monospace; line-height: 2; }
.code-box-note { font-size: 10px; color: var(--text-faint); margin-top: 8px; }

/* ── SUMMARY STRIP ── */
.summary-strip { display: flex; gap: 10px; margin-bottom: 20px; }
.summary-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  display: flex; flex-direction: column; gap: 3px;
  flex: 1;
}
.summary-card-label { font-size: 8px; font-weight: 600; letter-spacing: 0.16em; color: var(--text-muted); text-transform: uppercase; }
.summary-card-val { font-size: 20px; font-weight: 800; letter-spacing: -0.02em; }

/* ── PROGRESS BAR ── */
.progress-wrap { display: flex; align-items: center; gap: 10px; }
.progress-outer { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.progress-inner { height: 100%; border-radius: 2px; background: var(--accent-teal); transition: width 0.3s; }
.progress-label { font-size: 10px; font-weight: 600; color: var(--text-muted); white-space: nowrap; }

/* COLOUR SWATCHES */
.colour-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.colour-swatch {
  width: 22px; height: 22px; border-radius: 50%;
  cursor: pointer; border: 2px solid transparent;
  transition: border-color var(--transition);
}
.colour-swatch.selected { border-color: var(--text-primary); }

/* OR DIVIDER */
.or-divider { display: flex; align-items: center; gap: 10px; }
.or-line { flex: 1; height: 1px; background: var(--border); }
.or-text { font-size: 9px; color: var(--text-faint); letter-spacing: 0.1em; text-transform: uppercase; }

/* INVITE NOTE */
.info-note {
  background: var(--accent-teal-bg);
  border: 1px solid var(--accent-teal-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex; gap: 10px; align-items: flex-start;
}
.info-note i { color: var(--accent-teal); font-size: 14px; margin-top: 1px; flex-shrink: 0; }
.info-note-text { font-size: 11px; color: #4A6A70; line-height: 1.6; }

/* ERROR NOTE */
.error-note {
  background: var(--accent-orange-bg);
  border: 1px solid var(--accent-orange-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 11px;
  color: var(--accent-orange);
  display: none;
  letter-spacing: 0.04em;
}
.error-note.visible { display: block; }

/* ── LOADING STATE ── */
.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  gap: 12px;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border-mid);
  border-top-color: var(--accent-teal);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* EMPTY STATE */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  gap: 12px;
  text-align: center;
}
.empty-state i { font-size: 32px; color: var(--text-faint); }
.empty-state-title { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.empty-state-sub { font-size: 11px; color: var(--text-muted); max-width: 260px; line-height: 1.6; }

/* ── TOAST NOTIFICATIONS ── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: 12px;
  color: var(--text-primary);
  min-width: 240px;
  animation: slideIn 0.2s ease;
}

.toast i { font-size: 15px; flex-shrink: 0; }
.toast-success { border-color: var(--accent-green-border); }
.toast-success i { color: var(--accent-green); }
.toast-error { border-color: var(--accent-orange-border); }
.toast-error i { color: var(--accent-orange); }
.toast-info { border-color: var(--accent-teal-border); }
.toast-info i { color: var(--accent-teal); }

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

/* ── GLOW EFFECTS (login) ── */
.bg-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.bg-glow-teal {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(41,182,200,0.06) 0%, transparent 70%);
}
.bg-glow-orange {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(232,98,42,0.05) 0%, transparent 70%);
}

/* ── UTILITY ── */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.ml-auto { margin-left: auto; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.w-full { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .page-content { padding: 20px 16px; }
  .summary-strip { flex-wrap: wrap; }
  .summary-card { min-width: calc(50% - 5px); }
  .toolbar { flex-wrap: wrap; }
  .topbar { padding: 0 16px; gap: 8px; }
  .class-context { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}