/* ===========================
   GLOBAL BASE
   =========================== */
*{ box-sizing:border-box; }
html, body{ height:100%; }

body{
  margin:0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% 0%, var(--bg2), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, color-mix(in oklab, var(--ok) 10%, transparent), transparent 55%),
    radial-gradient(800px 500px at 50% 100%, color-mix(in oklab, var(--danger) 10%, transparent), transparent 55%),
    var(--bg);
}

/* Subtle matrix background */
.matrix-bg{
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.26;
}
html[data-theme="dark"] .matrix-bg{
  opacity: 0.12;
}
.matrix-bg canvas{
  width: 100%;
  height: 100%;
  display: block;
}
.container, .wrap, .drawer, .modal, .toast{
  position: relative;
  z-index: 1;
}

a{ color:inherit; text-decoration:none; }

.small{ font-size:13px; color: var(--muted); }
.mono{ font-family: var(--mono); }
.nocopy{ -webkit-user-select:none; user-select:none; }

hr{
  border:0;
  border-top: var(--border-w) solid var(--border);
  margin: 14px 0;
}

/* Spacing helpers */
.mt10{ margin-top:10px; }
.w100{ width:100%; }
.ghost{ visibility:hidden; }
.spread{ justify-content:space-between; }

/* ===========================
   LAYOUT WRAPPERS
   =========================== */
.container{
  width: min(1200px, 96%);
  margin: 18px auto;
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

/* Footer */
.site-footer{
  width: min(1200px, 96%);
  margin: 14px auto 24px;
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.footer-inner{
  padding: 14px 16px;
}
.footer-title{
  font-weight: 800;
  margin-bottom: 6px;
}
.footer-row{
  font-size: 13px;
  color: var(--muted);
  margin: 4px 0;
}

/* Admin login tweaks */
.login-card{
  max-width: 520px;
  margin: 40px auto;
}
.login-title{
  text-align: center;
  margin-top: 6px;
  margin-bottom: 14px;
}
.login-card .input{
  margin: 10px 0;
}
.login-card .row{
  gap: 12px;
}
.login-actions{
  justify-content: center;
}
.login-actions .btn{
  min-width: 120px;
}
.login-card #msg{
  margin-top: 8px;
  color: var(--danger);
  text-align: center;
}

.wrap{
  max-width: 1440px;
  margin: 16px auto;
  padding: 0 14px;
}

/* Landing (index) */
.landing-wrap{
  min-height: 100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 18px;
}
.landing{
  width: min(980px, 92vw);
  padding: 16px;
}
.landing-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 12px;
  flex-wrap:wrap;
}
.cards{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}
@media (max-width: 900px){
  .cards{ grid-template-columns: 1fr; }
}
.role-card{
  border: var(--border-w) solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 14px;
}
.role-card h2{ margin:0 0 6px 0; }
.role-card p{ margin:0 0 12px 0; color: var(--muted); }
.role-actions{ display:flex; gap:10px; }

/* ===========================
   TOPBAR
   =========================== */
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  flex-wrap: wrap;

  padding: 14px;
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.brand h1{ margin: 0; font-size: 20px; letter-spacing: .2px; }
.brand .sub{ font-size: 12px; color: var(--muted); margin-top: 2px; }

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

/* ===========================
   BUTTONS
   =========================== */
.btn{
  appearance:none;
  border: var(--border-w) solid var(--border);
  background: var(--panel2);
  color: var(--text);

  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor:pointer;

  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;

  white-space: nowrap;
  user-select:none;

  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.btn:hover{
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--accent) 30%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 12%, transparent);
}
.btn:active{ transform: translateY(0); }
.btn:disabled{ opacity:.45; cursor:not-allowed; transform:none; box-shadow:none; }

.btn.primary{
  background: color-mix(in oklab, var(--accent) 16%, var(--panel2));
  border-color: color-mix(in oklab, var(--accent) 28%, var(--border));
}
.btn.ok{
  background: color-mix(in oklab, var(--ok) 14%, var(--panel2));
  border-color: color-mix(in oklab, var(--ok) 26%, var(--border));
}
.btn.danger{
  background: color-mix(in oklab, var(--danger) 14%, var(--panel2));
  border-color: color-mix(in oklab, var(--danger) 26%, var(--border));
}
.btn.secondary{
  background: color-mix(in oklab, #94a3b8 14%, var(--panel2));
  border-color: color-mix(in oklab, #94a3b8 22%, var(--border));
}
.btn.soft{ background: var(--panel2); }

.bigbtn{ padding: 12px 16px; border-radius: 14px; }

/* ===========================
   INPUTS
   =========================== */
.input, select, textarea{
  width:100%;
  border: var(--border-w) solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  outline: none;

  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}
textarea{ resize: vertical; }

.input:focus, select:focus, textarea:focus{
  border-color: color-mix(in oklab, var(--accent) 35%, var(--border));
  box-shadow: 0 0 0 3px var(--ring);
}

/* Better <select> dropdown colors in dark mode (Windows/Chrome) */
html[data-theme="dark"] select,
html[data-theme="dark"] select option,
html[data-theme="dark"] select optgroup{
  background-color: color-mix(in oklab, var(--bg) 70%, #000);
  color: var(--text);
}
html[data-theme="dark"] select optgroup{
  color: var(--muted);
}
html[data-theme="dark"] select option:checked{
  background-color: color-mix(in oklab, var(--accent) 70%, #000);
  color: #fff;
}

/* ===========================
   GRID / ROW / COL
   =========================== */
.row{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}
.row.between{ justify-content:space-between; }
.col{ flex:1; min-width: 200px; }
.mini{ min-width: 150px; }

label.small{
  display:block;
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 6px;
}

/* ===========================
   CARDS
   =========================== */
.card{
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  overflow:hidden;
}

.cardHead{
  padding: 14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  border-bottom: var(--border-w) solid var(--border);
  background: color-mix(in oklab, var(--panel2) 70%, transparent);
}

.pad{ padding: 14px; }
.title{ font-weight: 800; }
.muted{ color: var(--muted); font-size: 12px; }
.hint{ font-size: 12px; color: var(--muted); line-height: 1.4; }
.h3{ margin:0; font-size:14px; }
.divider{ height:1px; background: var(--border); margin: 10px 0; }

/* Badge */
.badge{
  display:inline-flex;
  align-items:center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: var(--border-w) solid var(--border);
  background: color-mix(in oklab, var(--accent) 10%, transparent);
  font-size: 12px;
  color: var(--muted);
}
.badge.warn{
  background: color-mix(in oklab, var(--danger) 12%, transparent);
  border-color: color-mix(in oklab, var(--danger) 22%, var(--border));
}

/* ===========================
   ADMIN TESTS PAGE
   =========================== */
.grid{
  display:grid;
  grid-template-columns: 380px 1fr;
  gap: 14px;
  margin-top: 14px;
  align-items:stretch;
}

/* Drawer mode (desktop) */
.admin-tests-drawer .grid{
  grid-template-columns: 1fr;
}
.admin-tests-drawer .desktopOnly{
  display:none;
}
.admin-tests-drawer .mobileOnly{
  display:inline-flex;
}

.filters{
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.list{
  max-height: calc(100vh - 280px);
  overflow:auto;
  padding: 12px;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in oklab, var(--accent) 45%, var(--border)) transparent;
}
.list::-webkit-scrollbar{ width: 10px; }
.list::-webkit-scrollbar-track{ background: transparent; }
.list::-webkit-scrollbar-thumb{
  background: color-mix(in oklab, var(--accent) 45%, var(--border));
  border-radius: 999px;
  border: 3px solid transparent;
  background-clip: padding-box;
}

/* Admin tests: left panel should scroll nicely */
.card.desktopOnly{
  display:flex;
  flex-direction:column;
  max-height: calc(100vh - 140px);
}
.card.desktopOnly .cardHead{
  position: sticky;
  top: 0;
  z-index: 2;
}
.card.desktopOnly .list{
  flex:1;
  max-height: none;
  overflow:auto;
  padding-bottom: 16px;
}

.listitem{
  padding: 12px;
  border: var(--border-w) solid var(--border);
  background: var(--input-bg2);
  border-radius: 14px;
  cursor:pointer;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
  margin-bottom: 14px;
}
.listitem:hover{
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--accent) 25%, var(--border));
}
.listitem.active{
  border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 18%, transparent) inset;
}

.listTop{
  display:flex;
  justify-content:space-between;
  gap:10px;
  align-items:flex-start;
}
.listTitle{ font-weight: 800; }
.listMeta{
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.4;
}

.toolbar{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
  justify-content:flex-end;
}

.section{
  padding: 14px;
  border-top: var(--border-w) solid var(--border);
}

/* Admin Test Manager: keep "Add question" + Math toolbar visible while scrolling */
.editorCard{
  overflow: visible;
}
.qTools{
  position: sticky;
  top: 12px;
  z-index: 20;
  margin: -14px -14px 12px;
  padding: 14px;

  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  box-shadow: 0 12px 34px rgba(0,0,0,.18);
  backdrop-filter: blur(14px);
}

.tabs{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 10px 14px;
  border-top: var(--border-w) solid var(--border);
  border-bottom: var(--border-w) solid var(--border);
  background: color-mix(in oklab, var(--panel2) 70%, transparent);
}

.tab{
  padding: 8px 10px;
  border-radius: 999px;
  border: var(--border-w) solid var(--border);
  background: var(--input-bg2);
  color: var(--muted);
  cursor:pointer;
  font-size: 12px;
}
.tab.active{
  background: color-mix(in oklab, var(--accent) 16%, var(--panel2));
  border-color: color-mix(in oklab, var(--accent) 28%, var(--border));
  color: var(--text);
}

/* Tables */
.tableWrap{ overflow:auto; padding: 0 14px 14px; max-width:100%; }
table{ width:100%; border-collapse: separate; border-spacing: 0 10px; table-layout: fixed; }
th{
  font-size: 11px;
  color: var(--muted2);
  text-transform: uppercase;
  letter-spacing: .12em;
  text-align:left;
  padding: 0 12px;
}
td{
  padding: 10px 12px;
  background: var(--input-bg2);
  border-top: var(--border-w) solid var(--border);
  border-bottom: var(--border-w) solid var(--border);
}
th, td{ min-width: 120px; }
th:first-child, td:first-child{ width:40px; min-width:40px; }
th:last-child, td:last-child{ width:120px; min-width:120px; }

/* Admin results table */
.admin-table{
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  border-spacing: 0 10px;
}
.admin-table th,
.admin-table td{
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
  word-break: break-word;
  text-align: center;
  vertical-align: middle;
}
.admin-table th{
  font-size: 10px;
  letter-spacing: .06em;
  white-space: nowrap;
}
.admin-table .td-time{
  width: 22%;
  white-space: nowrap;
}
.admin-table .td-student{ width: 20%; }
.admin-table .td-class{
  width: 6%;
  text-align: center;
}
.admin-table .td-subj{ width: 16%; }
.admin-table .td-score{ width: 18%; }
.admin-table .td-actions{ width: 18%; }
.admin-table .td-actions{
  display:flex;
  justify-content:center;
  gap:8px;
}
.admin-table .td-actions{
  white-space: normal;
}
.time-small{
  font-size: 11px;
  color: var(--muted);
}
.collapsible-detail td{
  background: transparent;
  border: none;
  padding: 0 12px 12px;
}
.detailBox{
  border: var(--border-w) solid var(--border);
  background: var(--input-bg2);
  border-radius: 12px;
  padding: 10px 12px;
  line-height: 1.5;
  display:grid;
  gap:4px;
}
.detail-qs{
  margin-top: 8px;
  display: grid;
  gap: 8px;
}
.detail-q{
  border: var(--border-w) solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  background: color-mix(in oklab, var(--panel2) 70%, transparent);
}
.detail-q-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--muted);
}
.detail-q-title{
  font-weight: 700;
  color: var(--text);
  font-size: 13px;
}
.detail-q-meta{
  display:grid;
  gap: 4px;
  font-size: 12px;
}
.detail-q-meta span{
  color: var(--muted);
}
.detail-q.correct{
  border-color: color-mix(in oklab, var(--ok) 35%, var(--border));
  background: color-mix(in oklab, var(--ok) 8%, var(--panel2));
}
.detail-q.wrong{
  border-color: color-mix(in oklab, var(--danger) 35%, var(--border));
  background: color-mix(in oklab, var(--danger) 8%, var(--panel2));
}
.detail-q.unanswered{
  border-color: color-mix(in oklab, var(--muted) 35%, var(--border));
  background: color-mix(in oklab, var(--muted) 6%, var(--panel2));
}
.detail-q-badge{
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  border: var(--border-w) solid var(--border);
  background: var(--input-bg2);
}
.detail-q-badge.ok{
  border-color: color-mix(in oklab, var(--ok) 40%, var(--border));
  background: color-mix(in oklab, var(--ok) 12%, transparent);
}
.detail-q-badge.bad{
  border-color: color-mix(in oklab, var(--danger) 40%, var(--border));
  background: color-mix(in oklab, var(--danger) 12%, transparent);
}
.detail-q-badge.neutral{
  border-color: color-mix(in oklab, var(--muted) 40%, var(--border));
  background: color-mix(in oklab, var(--muted) 12%, transparent);
}

@media (max-width: 1024px){
  .admin-table th,
  .admin-table td{
    font-size: 12px;
  }
  .admin-table .td-actions{
    display:flex;
    gap:8px;
    justify-content:flex-start;
  }
  .admin-table .td-actions .btn{
    padding: 6px 10px;
  }
}

@media (max-width: 720px){
  .admin-table{
    font-size: 12px;
  }
  .admin-table th,
  .admin-table td{
    padding: 8px 6px;
    text-align: center;
    white-space: nowrap;
  }
  .admin-table th{ font-size: 10px; }

  .admin-table .td-actions{
    display:flex;
    gap:6px;
    justify-content:center;
    align-items:center;
  }
  .admin-table .td-actions .btn{
    padding: 6px 8px;
    font-size: 11px;
  }
}
tr td:first-child{ border-left: var(--border-w) solid var(--border); border-radius: 12px 0 0 12px; }
tr td:last-child{ border-right: var(--border-w) solid var(--border); border-radius: 0 12px 12px 0; }

/* Drawer (mobile) */
.drawerOverlay{
  position:fixed;
  inset:0;
  background: rgba(0,0,0,.45);
  z-index: 50;
  display:none;
}
.drawer{
  position:fixed;
  top:0;
  left:0;
  height:100vh;
  width: min(420px, 92vw);
  z-index: 51;
  transform: translateX(-105%);
  transition: transform var(--dur2) var(--ease);
}
.drawer.open{ transform: translateX(0); }

.mobileOnly{ display:none; }
.desktopOnly{ display:block; }

@media (max-width: 980px){
  .grid{ grid-template-columns: 1fr; }
  .desktopOnly{ display:none; }
  .mobileOnly{ display:inline-flex; }
  .list{ max-height: none; }
  /* Admin editor rows: avoid horizontal overflow */
  .col{ min-width: 100%; }
  .mini{ min-width: 100%; }
}

/* ===========================
   MATH TOOLBAR (admin preview)
   =========================== */
.mathbox{
  margin-top: 10px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
@media (max-width: 980px){
  .mathbox{ grid-template-columns: 1fr; }
}

.mathbar{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  padding: 10px;
  border: var(--border-w) solid var(--border);
  background: var(--input-bg2);
  border-radius: var(--radius);
}

.mbtn{
  border: var(--border-w) solid var(--border);
  background: var(--panel2);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 10px;
  cursor:pointer;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.mbtn:hover{
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--accent) 28%, var(--border));
}

.mathpreview{
  padding: 12px;
}
.mathPreviewBody{
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: var(--border-w) solid var(--border);
  background: var(--input-bg);
  min-height: 46px;
}

/* WYSIWYG math inputs */
.math-input{
  min-height: 44px;
  padding: 10px 12px;
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  outline: none;
  line-height: 1.4;
  word-break: break-word;
}
.math-input:focus{
  border-color: color-mix(in oklab, var(--accent) 35%, var(--border));
  box-shadow: 0 0 0 3px var(--ring);
}
.math-token{
  padding: 2px 4px;
  border-radius: 6px;
  background: color-mix(in oklab, var(--accent) 10%, transparent);
}

/* Room panel */
#roomPanel .room-list{
  list-style: none;
  padding: 0;
  margin: 6px 0 0 0;
  display: grid;
  gap: 6px;
}
#roomPanel .room-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--input-bg2);
  border: var(--border-w) solid var(--border);
}
#roomPanel .room-list li.room-me{
  border-color: color-mix(in oklab, var(--ok) 35%, var(--border));
  background: color-mix(in oklab, var(--ok) 10%, var(--input-bg2));
}
#roomPanel .room-rank{
  font-weight: 800;
  background: color-mix(in oklab, var(--accent) 15%, transparent);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
}
#roomPanel .room-rank.medal{
  background: color-mix(in oklab, var(--warn) 25%, transparent);
}
#roomPanel .room-score{
  font-size: 12px;
  color: var(--muted);
}

/* Certificate preview */
.certPreview{
  background: #fff;
  color: #111;
  padding: 40px;
  border-radius: 12px;
  border: 1px solid #ddd;
}
.certBorder1{ border: 10mm solid #111; }
.certBorder2{ border: 10mm double #111; }
.certBorder3{ border: 10mm solid #111; box-shadow: inset 0 0 0 6px #111; }
.certBorder4{ border: 10mm solid #111; position: relative; }
.certBorder4:after{ content:""; position:absolute; left:22mm; right:22mm; bottom:22mm; height:1px; background:#111; }

/* ===========================
   STUDENT TEST PAGE
   =========================== */
.options .optLabel{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding: 12px 12px;
  border: var(--border-w) solid var(--border);
  border-radius: 14px;
  cursor:pointer;
  background: var(--input-bg2);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.options .optLabel:hover{
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--accent) 25%, var(--border));
}
.options input{ margin-top: 2px; }

.options .optLabel.selected{
  border-color: color-mix(in oklab, var(--accent) 32%, var(--border));
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 16%, transparent) inset;
  background: color-mix(in oklab, var(--accent) 10%, var(--input-bg2));
}

.options .optLabel.correct{
  border-color: color-mix(in oklab, var(--ok) 38%, var(--border));
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--ok) 20%, transparent) inset;
  background: color-mix(in oklab, var(--ok) 14%, var(--input-bg2));
}

.options .optLabel.wrong{
  border-color: color-mix(in oklab, var(--danger) 38%, var(--border));
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--danger) 20%, transparent) inset;
  background: color-mix(in oklab, var(--danger) 12%, var(--input-bg2));
}

/* Navigator */
.qgrid{
  display:grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.qbtn{
  padding: 8px 0;
  border-radius: 12px;
  border: var(--border-w) solid var(--border);
  cursor:pointer;
  background: var(--input-bg2);
  font-size: 13px;
  user-select:none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.qbtn:hover{ transform: translateY(-1px); }
.qbtn.current{
  outline: 2px solid color-mix(in oklab, var(--accent) 28%, transparent);
  border-color: color-mix(in oklab, var(--accent) 35%, var(--border));
}
.qbtn.answered{
  background: color-mix(in oklab, var(--accent) 12%, var(--input-bg2));
  border-color: color-mix(in oklab, var(--accent) 26%, var(--border));
}
.qbtn.correct{
  background: color-mix(in oklab, var(--ok) 14%, var(--input-bg2));
  border-color: color-mix(in oklab, var(--ok) 34%, var(--border));
}
.qbtn.wrong{
  background: color-mix(in oklab, var(--danger) 14%, var(--input-bg2));
  border-color: color-mix(in oklab, var(--danger) 34%, var(--border));
}
.qbtn.empty{
  background: var(--input-bg2);
}

/* Legend */
.legend{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  font-size: 12px;
  color: var(--muted);
  margin-top: 10px;
}
.dot{
  width:10px; height:10px; border-radius: 999px;
  display:inline-block; margin-right: 6px; vertical-align:middle;
}
.dot.ok{ background: color-mix(in oklab, var(--ok) 55%, transparent); }
.dot.bad{ background: color-mix(in oklab, var(--danger) 55%, transparent); }
.dot.cur{ background: color-mix(in oklab, var(--accent) 65%, transparent); }

/* ===========================
   TIMER + TOAST
   =========================== */
.timer{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: var(--border-w) solid var(--border);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  color: var(--text);
  font-weight: 800;
  letter-spacing: .2px;
}
.timer.warn{
  background: color-mix(in oklab, var(--warn) 14%, transparent);
  border-color: color-mix(in oklab, var(--warn) 26%, var(--border));
}
.timer.danger{
  background: color-mix(in oklab, var(--danger) 14%, transparent);
  border-color: color-mix(in oklab, var(--danger) 26%, var(--border));
}
.timer.compact{ padding: 6px 8px; font-size: 12px; }

@keyframes shake{
  0%,100%{ transform: translateX(0); }
  20%{ transform: translateX(-2px); }
  40%{ transform: translateX(2px); }
  60%{ transform: translateX(-2px); }
  80%{ transform: translateX(2px); }
}
.timer.shake{ animation: shake .4s linear infinite; }

.toast{
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 18px;
  z-index: 99999;

  background: linear-gradient(180deg, var(--panel), var(--panel2));
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-strong);
  border-radius: 999px;

  padding: 10px 14px;
  display:flex;
  align-items:center;
  gap:10px;
  max-width: min(520px, 92vw);
}
.toast.hide{ display:none; }

/* ===========================
   MODAL (unanswered, confirm, etc.)
   =========================== */
.modalOverlay{
  display:none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 9999;
}
.modal{
  display:none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modalCard{
  width: min(760px, 92vw);
  max-height: 80vh;
  overflow:auto;

  background: linear-gradient(180deg, var(--panel), var(--panel2));
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-strong);
  padding: 14px;
  color: var(--text);
}
.modalHead{
  display:flex;
  justify-content: space-between;
  align-items:center;
  gap: 10px;
}
.modalTitle{ font-weight: 900; }
.modalBody{ margin-top: 10px; }
.modalActions{
  display:flex;
  justify-content:flex-end;
  gap:10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* ===========================
   RESPONSIVE TWEAKS
   =========================== */
@media (max-width: 520px){
  .container{ padding: 14px; }
  .qgrid{ grid-template-columns: repeat(5, 1fr); }
}

@media (max-width: 720px){
  /* Stack form fields on small screens */
  .col{ min-width: 100%; }
  .mini{ min-width: 100%; }
}