:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #1a1a1a);
  --hint: var(--tg-theme-hint-color, #707579);
  --link: var(--tg-theme-link-color, #2481cc);
  --button: var(--tg-theme-button-color, #2481cc);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f5f5f5);
  --section-bg: var(--tg-theme-section-bg-color, #ffffff);
  --separator: var(--tg-theme-section-separator-color, #e1e1e1);
  --success: #2ea043;
  --warning: #d29922;
  --danger: #cf222e;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.4;
}

#app { min-height: 100vh; padding: 16px; max-width: 720px; margin: 0 auto; }

.screen { padding: 16px 0; }
.center { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 70vh; text-align: center; }

h1 { font-size: 22px; margin: 8px 0 16px; }
h2 { font-size: 18px; margin: 16px 0 8px; }
h3 { font-size: 16px; margin: 12px 0 6px; }
p { margin: 8px 0; }

.muted { color: var(--hint); }
.danger { color: var(--danger); }
.success { color: var(--success); }

.btn {
  display: inline-block; padding: 12px 16px; border-radius: 10px;
  background: var(--button); color: var(--button-text);
  border: 0; font-size: 16px; font-weight: 500; cursor: pointer; width: 100%;
  text-align: center;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: var(--secondary-bg); color: var(--text); }
.btn.danger { background: var(--danger); color: white; }
.btn + .btn { margin-top: 8px; }

.input-group { margin-bottom: 14px; }
.input-group label { display: block; font-size: 14px; color: var(--hint); margin-bottom: 6px; }
.input-group input, .input-group select {
  width: 100%; padding: 12px; border-radius: 10px;
  border: 1px solid var(--separator); background: var(--bg); color: var(--text);
  font-size: 16px;
}
.input-group .err { color: var(--danger); font-size: 13px; margin-top: 4px; }

.card {
  background: var(--section-bg);
  border: 1px solid var(--separator);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 12px;
}

.header-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0 12px;
  border-bottom: 1px solid var(--separator);
  margin-bottom: 16px;
  font-size: 14px;
}
.timer { font-weight: 700; font-size: 18px; }
.timer.warn { color: var(--warning); }
.timer.danger { color: var(--danger); }

.progress {
  height: 6px; background: var(--separator); border-radius: 3px; overflow: hidden;
  margin-bottom: 14px;
}
.progress > div { height: 100%; background: var(--button); transition: width .25s; }

.question-text { font-size: 17px; margin: 16px 0; }
.question-image { max-width: 100%; border-radius: 10px; margin: 12px 0; display: block; }

.options { display: flex; flex-direction: column; gap: 10px; }
.options.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.options.grid-2 .option { min-height: 60px; justify-content: center; text-align: center; }
.option {
  padding: 14px; border-radius: 10px;
  border: 1.5px solid var(--separator);
  background: var(--section-bg); color: var(--text);
  cursor: pointer; text-align: left;
  font-size: 16px;
  display: flex; align-items: center; gap: 10px;
}
.option:hover { border-color: var(--button); }
.option.selected { border-color: var(--button); background: rgba(36, 129, 204, 0.08); }
.option .letter {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--secondary-bg); font-weight: 600; flex-shrink: 0;
}
.option.selected .letter { background: var(--button); color: var(--button-text); }

.dont-know {
  margin-top: 16px;
  padding: 12px;
  border-radius: 10px;
  background: transparent;
  border: 1.5px dashed var(--hint);
  color: var(--hint);
  width: 100%; cursor: pointer; font-size: 15px;
}
.dont-know:hover { color: var(--text); border-color: var(--text); }
.dont-know.selected { border-color: var(--warning); color: var(--warning); border-style: solid; }

.compare-cells { display: flex; gap: 12px; margin: 16px 0; }
.compare-cell {
  flex: 1; padding: 18px; border-radius: 12px;
  background: var(--secondary-bg); text-align: center;
  font-size: 20px; min-height: 80px;
  display: flex; align-items: center; justify-content: center;
}
.compare-cell .label { font-size: 13px; color: var(--hint); display: block; margin-bottom: 6px; }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; border-bottom: 1px solid var(--separator); }
.tab { padding: 10px 14px; cursor: pointer; border-bottom: 2px solid transparent; color: var(--hint); }
.tab.active { border-bottom-color: var(--button); color: var(--text); font-weight: 600; }

.session-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px; border-bottom: 1px solid var(--separator); cursor: pointer;
}
.session-row:last-child { border-bottom: 0; }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 10px;
  font-size: 12px; background: var(--secondary-bg); color: var(--hint);
}
.badge.done { background: rgba(46, 160, 67, 0.15); color: var(--success); }
.badge.in_progress { background: rgba(210, 153, 34, 0.15); color: var(--warning); }
.badge.pending, .badge.name_entered { background: var(--secondary-bg); color: var(--hint); }

.score-big { font-size: 38px; font-weight: 700; line-height: 1; }
.score-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 14px 0; }
.score-cell { background: var(--secondary-bg); border-radius: 10px; padding: 12px; text-align: center; }
.score-cell .name { font-size: 12px; color: var(--hint); margin-bottom: 4px; }
.score-cell .val { font-size: 22px; font-weight: 700; }
.score-cell .small { font-size: 11px; color: var(--hint); }

.chart-wrap { background: var(--section-bg); border-radius: 12px; padding: 12px; margin-bottom: 12px; border: 1px solid var(--separator); }

.q-detail {
  border: 1px solid var(--separator); border-radius: 10px; padding: 12px;
  margin-bottom: 10px;
}
.q-detail .top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.q-detail .status-correct { color: var(--success); font-weight: 600; }
.q-detail .status-wrong { color: var(--danger); font-weight: 600; }
.q-detail .status-dk { color: var(--warning); font-weight: 600; }
.q-detail .answers-row { display: flex; gap: 12px; font-size: 14px; color: var(--hint); margin-top: 6px; flex-wrap: wrap; }
.q-detail .answers-row b { color: var(--text); font-weight: 500; }

.spinner {
  width: 30px; height: 30px;
  border: 3px solid var(--separator);
  border-top-color: var(--button);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 18px;
  border-radius: 20px; font-size: 14px; z-index: 1000;
  animation: fadeIn .2s ease;
}
@keyframes fadeIn { from { opacity: 0; transform: translate(-50%, 10px); } to { opacity: 1; transform: translate(-50%, 0); } }

.link-result { background: var(--secondary-bg); padding: 10px; border-radius: 8px; word-break: break-all; font-size: 13px; margin: 10px 0; font-family: ui-monospace, monospace; }

/* Выдача ссылки ученику */
.link-label { font-weight: 600; font-size: 15px; margin-top: 4px; }
.link-action { color: var(--link); text-decoration: none; font-size: 14px; white-space: nowrap; }
.link-action:hover { text-decoration: underline; }

/* Шапка панели: имя, смена пароля, выход */
.header-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; justify-content: flex-end; font-size: 14px; }

/* Кнопки в строке менеджера */
.mgr-buttons { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.mgr-btn {
  border: 1px solid var(--separator); background: var(--bg); color: var(--text);
  border-radius: 8px; padding: 6px 10px; font-size: 13px; cursor: pointer;
}
.mgr-btn:hover { background: var(--secondary-bg); }
.mgr-btn:disabled { opacity: .5; cursor: not-allowed; }

/* Выданный доступ — показывается один раз */
.creds { margin-top: 16px; padding: 12px; border-radius: 10px; background: var(--secondary-bg); }
.creds .link-result { white-space: pre-line; background: var(--bg); }

/* Manager management list */
.mgr-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.mgr-row {
  display: flex; gap: 12px; align-items: center;
  padding: 10px 12px; border-radius: 10px; background: var(--secondary-bg);
}
.mgr-info { flex: 1; min-width: 0; }
.mgr-name { font-weight: 600; font-size: 14px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.mgr-sub { font-size: 12px; margin-top: 2px; word-break: break-all; }
.owner-badge { background: rgba(99,102,241,0.15); color: #4338ca; font-weight: 700; }
.mgr-remove {
  background: transparent; color: var(--danger);
  border: 1px solid var(--danger); border-radius: 8px;
  padding: 4px 10px; font-size: 12px; cursor: pointer;
}
.mgr-remove:hover { background: var(--danger); color: white; }
.mgr-remove:disabled { opacity: 0.4; cursor: wait; }

/* Answer tree (per-subject adaptive path) */
.answer-tree { width: 100%; height: auto; display: block; }
.answer-tree .tree-guide { stroke: var(--separator); stroke-width: 1; stroke-dasharray: 3 3; }
.answer-tree .tree-axis { fill: var(--hint); font-size: 10px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.answer-tree .tree-num { fill: white; font-size: 11px; font-weight: 700; font-family: -apple-system, BlinkMacSystemFont, sans-serif; pointer-events: none; }

.answer-tree .tree-circle { stroke: white; stroke-width: 2; }
.answer-tree .tree-correct { fill: var(--success); }
.answer-tree .tree-correct.tree-seg { stroke: var(--success); }
.answer-tree .tree-wrong { fill: var(--danger); }
.answer-tree .tree-wrong.tree-seg { stroke: var(--danger); }
.answer-tree .tree-dk { fill: var(--warning); }
.answer-tree .tree-dk.tree-seg { stroke: var(--warning); }
.answer-tree .tree-pending { fill: var(--separator); }

.answer-tree .tree-seg {
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: var(--len);
  stroke-dashoffset: var(--len);
  animation: treeDraw .35s ease-out forwards;
}

.answer-tree .tree-node {
  transform-origin: center;
  transform-box: fill-box;
  animation: treePop .35s cubic-bezier(.34,1.56,.64,1) backwards;
}

@keyframes treeDraw {
  to { stroke-dashoffset: 0; }
}
@keyframes treePop {
  0%   { opacity: 0; transform: scale(0.2); }
  60%  { opacity: 1; transform: scale(1.15); }
  100% { opacity: 1; transform: scale(1); }
}

/* ============================================================
   Gallup-style sales report
   ============================================================ */

.report-screen { padding-bottom: 60px; }

.section-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--hint);
  font-weight: 600;
  margin: 24px 0 10px;
}

/* Hero */
.hero {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 18px 0 22px;
  border-bottom: 1px solid var(--separator);
  margin-bottom: 18px;
}
.avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white; display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}
.hero-info { flex: 1; min-width: 0; }
.hero-sub { font-size: 12px; color: var(--hint); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.hero-name { font-size: 24px; margin: 4px 0 2px; line-height: 1.2; font-weight: 700; }
.hero-meta { font-size: 13px; color: var(--hint); }

/* Total card */
.total-card {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent, var(--button)) 8%, var(--section-bg)), var(--section-bg));
  border: 1px solid var(--separator);
  border-left: 4px solid var(--accent, var(--button));
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 18px;
}
.total-label {
  font-size: 11px; color: var(--hint);
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600;
}
.total-row {
  display: flex; align-items: baseline; gap: 14px; margin-top: 6px; flex-wrap: wrap;
}
.total-score {
  font-size: 56px; font-weight: 800; line-height: 1;
  color: var(--accent, var(--text));
  font-variant-numeric: tabular-nums;
}
.total-score span {
  font-size: 22px; color: var(--hint); font-weight: 500;
}
.total-summary {
  flex: 1; min-width: 0;
  font-size: 16px; font-weight: 600; color: var(--text); line-height: 1.3;
}
.total-meta {
  display: flex; gap: 16px; margin-top: 14px; flex-wrap: wrap;
  font-size: 13px; color: var(--hint);
}
.total-meta b { color: var(--text); font-weight: 600; }
.total-bars { margin-top: 16px; display: grid; gap: 10px; }
.total-bar .bar-head {
  display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 4px;
  color: var(--text);
}
.total-bar .bar-head b { font-weight: 600; }
.bar-track {
  height: 8px; background: var(--separator); border-radius: 4px; overflow: hidden;
}
.bar-fill {
  height: 100%; border-radius: 4px;
  transition: width .6s cubic-bezier(.34,1.56,.64,1);
}

/* Strength / Growth panels */
.panel {
  background: var(--section-bg);
  border: 1px solid var(--separator);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 14px;
}
.panel-strength { border-left: 4px solid var(--success); }
.panel-growth { border-left: 4px solid var(--warning); }
.panel-head {
  display: flex; gap: 12px; align-items: flex-start; margin-bottom: 14px;
}
.panel-head h2 {
  margin: 0; font-size: 17px; font-weight: 700;
}
.panel-icon {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; flex-shrink: 0;
}
.panel-strength .panel-icon { background: rgba(46,160,67,0.15); color: var(--success); }
.panel-growth .panel-icon { background: rgba(210,153,34,0.15); color: var(--warning); }
.panel-hint { margin: 4px 0 0; font-size: 13px; color: var(--hint); line-height: 1.4; }

.topic-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.topic-row {
  display: flex; gap: 12px; padding: 10px 12px; border-radius: 10px;
  background: var(--secondary-bg);
  align-items: center;
}
.topic-strength { border-left: 3px solid var(--success); }
.topic-growth { border-left: 3px solid var(--warning); }
.topic-text { flex: 1; min-width: 0; }
.topic-name { font-weight: 600; font-size: 14px; line-height: 1.3; }
.topic-sub { font-size: 11px; color: var(--hint); margin-top: 2px; }
.topic-score { text-align: right; flex-shrink: 0; }
.topic-pct { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }
.topic-strength .topic-pct { color: var(--success); }
.topic-growth .topic-pct { color: var(--warning); }
.topic-frac { font-size: 11px; color: var(--hint); }

/* Subjects overview grid */
.subjects-overview { margin-top: 6px; }
.subj-grid {
  display: grid; grid-template-columns: 1fr; gap: 10px;
}
@media (min-width: 480px) {
  .subj-grid { grid-template-columns: 1fr 1fr 1fr; }
}
.subj-card {
  background: var(--section-bg); border: 1px solid var(--separator);
  border-radius: 12px; padding: 14px;
}
.subj-card-head { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
.subj-icon {
  width: 36px; height: 36px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; flex-shrink: 0;
}
.subj-icon-math { background: rgba(59,130,246,0.12); color: #1e40af; }
.subj-icon-logic { background: rgba(168,85,247,0.12); color: #6b21a8; }
.subj-icon-english { background: rgba(16,185,129,0.12); color: #047857; }
.subj-card-title { flex: 1; min-width: 0; }
.subj-card-title > div:first-child { font-size: 13px; color: var(--hint); }
.subj-score { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.mastery {
  display: inline-block; padding: 3px 9px; border-radius: 10px;
  font-size: 11px; font-weight: 600; margin-bottom: 8px;
}
.mastery-high { background: rgba(46,160,67,0.15); color: var(--success); }
.mastery-mid { background: rgba(210,153,34,0.15); color: var(--warning); }
.mastery-low { background: rgba(207,34,46,0.15); color: var(--danger); }
.subj-stats { display: flex; flex-direction: column; gap: 2px; font-size: 12px; color: var(--hint); }
.subj-stats b { color: var(--text); font-weight: 600; }

/* Tree block (replaces old chart-wrap labelling) */
.tree-block {
  background: var(--secondary-bg);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 12px;
}
.tree-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.tree-hint { font-size: 12px; color: var(--hint); margin-bottom: 12px; line-height: 1.4; }

.qs-details {
  margin-top: 8px; padding: 10px 0 0;
  border-top: 1px solid var(--separator);
}
.qs-details summary {
  cursor: pointer; font-weight: 600; font-size: 14px; color: var(--link);
  padding: 4px 0;
}
.qs-list { margin-top: 10px; }

/* CTA */
.cta-block {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  border-radius: 16px;
  padding: 22px;
  margin: 24px 0 12px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(99,102,241,0.25);
}
.cta-icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.18); color: white;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; margin-bottom: 8px;
}
.cta-block h2 { color: white; margin: 0 0 8px; font-size: 20px; font-weight: 700; }
.cta-block p { color: rgba(255,255,255,0.92); font-size: 14px; line-height: 1.5; margin: 0 0 16px; }
.cta-btn {
  display: inline-block; background: white; color: #4338ca;
  font-weight: 700; padding: 12px 20px; border-radius: 10px;
  text-decoration: none; max-width: 280px; width: auto;
}

/* Manager action row — Share / Download PDF / WhatsApp */
.report-actions {
  display: grid; gap: 8px; margin-top: 18px;
}

/* PDF export — force light theme so the captured page isn't dark.
   !important on every variable because Telegram desktop sets the
   --tg-theme-* vars inline on the root, and inline beats CSS-only
   without !important. */
.pdf-export {
  --bg: #ffffff !important;
  --text: #1a1a1a !important;
  --section-bg: #ffffff !important;
  --secondary-bg: #f5f5f5 !important;
  --separator: #e1e1e1 !important;
  --hint: #707579 !important;
  --link: #2481cc !important;
  --button: #2481cc !important;
  --button-text: #ffffff !important;
  --tg-theme-bg-color: #ffffff !important;
  --tg-theme-text-color: #1a1a1a !important;
  --tg-theme-hint-color: #707579 !important;
  --tg-theme-link-color: #2481cc !important;
  --tg-theme-button-color: #2481cc !important;
  --tg-theme-button-text-color: #ffffff !important;
  --tg-theme-secondary-bg-color: #f5f5f5 !important;
  --tg-theme-section-bg-color: #ffffff !important;
  --tg-theme-section-separator-color: #e1e1e1 !important;
  background: #ffffff !important;
  color: #1a1a1a !important;
}
.pdf-export .header-bar,
.pdf-export .report-actions { display: none !important; }
.pdf-export .panel,
.pdf-export .total-card,
.pdf-export .cta-block,
.pdf-export .subj-card,
.pdf-export .q-detail { page-break-inside: avoid; break-inside: avoid; }

/* Plain solid background during PDF capture / print (replaces
   color-mix gradient which some renderers can't parse). */
.pdf-export .total-card {
  background: #f5f7fb !important;
}

@media print {
  /* Apply the same light overrides during the system print dialog */
  :root, html, body {
    --bg: #ffffff !important;
    --text: #1a1a1a !important;
    --section-bg: #ffffff !important;
    --secondary-bg: #f5f5f5 !important;
    --separator: #e1e1e1 !important;
    --hint: #707579 !important;
    --link: #2481cc !important;
    --button: #2481cc !important;
    --button-text: #ffffff !important;
    background: #ffffff !important;
    color: #1a1a1a !important;
  }
  .header-bar, .report-actions { display: none !important; }
  .panel, .total-card, .cta-block, .q-detail, .subj-card,
  .topic-row, .tree-block {
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .total-card { background: #f5f7fb !important; }
  .cta-block {
    background: #6366f1 !important;
    color: white !important;
    box-shadow: none !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  /* Keep the colour bars and avatar visible on print */
  .avatar, .bar-fill, .panel-icon, .badge, .total-score,
  .topic-strength, .topic-growth, .panel-strength, .panel-growth,
  .subj-icon-math, .subj-icon-logic, .subj-icon-english,
  .mastery-high, .mastery-mid, .mastery-low {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  @page { margin: 12mm; size: A4; }
}