/* ==========================================================================
   Контрольное тестирование по истории России — оформление
   Стиль: академический, «печатный» — бумага, тушь, один акцентный цвет.
   ========================================================================== */

:root {
  --ink: #17171a;
  --ink-soft: #4a4a52;
  --ink-muted: #7b7b85;
  --paper: #ffffff;
  --paper-warm: #f8f7f4;
  --paper-edge: #e6e2d9;
  --rule: #d8d4ca;
  --accent: #8c1d2f;
  --accent-dark: #6d1424;
  --accent-tint: #f6ecee;
  --ok: #1f6b45;
  --ok-tint: #eaf4ee;
  --bad: #a3242b;
  --bad-tint: #fbeceb;
  --warn: #9a6b12;
  --warn-tint: #fdf4e3;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", "PT Serif", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, "Menlo", "Consolas", monospace;
  --shadow-sm: 0 1px 2px rgba(23, 23, 26, 0.05);
  --shadow-md: 0 8px 28px -18px rgba(23, 23, 26, 0.35);
  --radius: 3px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  overflow-x: hidden;
  background: var(--paper-warm);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Тонкая «бумажная» фактура фона */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to bottom, rgba(23, 23, 26, 0.015) 1px, transparent 1px),
    radial-gradient(circle at 18% 12%, rgba(140, 29, 47, 0.035), transparent 42%);
  background-size: 100% 28px, 100% 100%;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.22;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 64px;
}
.wrap--narrow { max-width: 880px; }

/* --------------------------------------------------------------------------
   Шапка
   -------------------------------------------------------------------------- */

.masthead {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: relative;
  z-index: 2;
}
.masthead__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.masthead__mark {
  width: 42px;
  height: 42px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex: none;
}
.masthead__titles { flex: 1 1 auto; min-width: 0; }
.masthead__title {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.masthead__sub {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-top: 3px;
}
.masthead__aside {
  font-size: 12.5px;
  color: var(--ink-soft);
  text-align: right;
  line-height: 1.35;
  flex: none;
}
.masthead__aside strong { font-weight: 600; }

.rule-double {
  height: 5px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  opacity: 0.85;
}

/* --------------------------------------------------------------------------
   Типографические блоки
   -------------------------------------------------------------------------- */

.kicker {
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}
.lede {
  font-family: var(--serif);
  font-size: 17.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}
.muted { color: var(--ink-muted); }
.small { font-size: 13.5px; }
.tabular { font-variant-numeric: tabular-nums; }

.section-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-family: var(--sans);
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 8px;
  margin: 0 0 16px;
}

/* --------------------------------------------------------------------------
   Карточки
   -------------------------------------------------------------------------- */

.card {
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 26px 28px;
}
.card + .card { margin-top: 20px; }
.card--flush { padding: 0; overflow: hidden; }

/* --------------------------------------------------------------------------
   Стартовая страница
   -------------------------------------------------------------------------- */

.hero {
  padding: 46px 0 30px;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 44px;
  align-items: start;
}
.hero__title {
  font-size: 42px;
  margin-bottom: 14px;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
}
.hero__facts {
  display: flex;
  gap: 34px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}
.fact__value {
  font-family: var(--serif);
  font-size: 27px;
  line-height: 1;
}
.fact__label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-muted);
  margin-top: 6px;
}

.rules { margin: 0; padding: 0; list-style: none; }
.rules li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  color: var(--ink-soft);
  font-size: 14.6px;
}
.rules li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  transform: rotate(45deg);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px 22px;
  margin-top: 4px;
}
.types-grid span {
  font-size: 14px;
  color: var(--ink-soft);
  border-left: 2px solid var(--paper-edge);
  padding-left: 12px;
}

/* --------------------------------------------------------------------------
   Формы
   -------------------------------------------------------------------------- */

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  font-weight: 700;
  margin-bottom: 7px;
}
.field input[type="text"],
.field select,
input[type="text"].input,
select.input {
  width: 100%;
  padding: 12px 13px;
  font-size: 16px;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.field input:focus,
.field select:focus,
.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.field__hint { font-size: 12.5px; color: var(--ink-muted); margin-top: 6px; }
.field__error {
  font-size: 13px;
  color: var(--bad);
  margin-top: 6px;
  min-height: 18px;
}

.length-picker { display: flex; gap: 8px; flex-wrap: wrap; }
.length-picker input { position: absolute; opacity: 0; pointer-events: none; }
.length-picker label {
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  padding: 9px 16px;
  font-size: 14px;
  cursor: pointer;
  background: var(--paper);
  transition: all 0.16s ease;
  font-weight: 600;
  color: var(--ink-soft);
  text-transform: none;
  letter-spacing: 0;
  margin: 0;
}
.length-picker label:hover { border-color: var(--ink-muted); color: var(--ink); }
.length-picker input:checked + label {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* --------------------------------------------------------------------------
   Кнопки
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 13px 24px;
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); text-decoration: none; }
.btn--ink { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn--ink:hover { background: #000; text-decoration: none; }
.btn--ghost { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; text-decoration: none; }
.btn--quiet {
  background: transparent;
  border-color: var(--paper-edge);
  color: var(--ink-soft);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
}
.btn--quiet:hover { border-color: var(--ink); color: var(--ink); text-decoration: none; }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; }
.btn--wide { width: 100%; }
.btn--lg { padding: 16px 30px; font-size: 14.5px; }

.btn-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   Экран теста
   -------------------------------------------------------------------------- */

.exam {
  display: grid;
  grid-template-columns: 1fr 268px;
  gap: 26px;
  align-items: start;
  padding-top: 26px;
}

.exam__main { min-width: 0; }

.progress {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.progress__bar {
  position: relative;
  flex: 1 1 auto;
  height: 6px;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: 99px;
  overflow: hidden;
}
.progress__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #b23c50);
  transition: width 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.progress__label {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  white-space: nowrap;
}

.paper {
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 34px 38px 30px;
  position: relative;
  overflow: hidden;
}
.paper__stamp {
  position: absolute;
  top: 16px;
  right: 18px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.qmeta {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-muted);
  margin-bottom: 14px;
}
.qmeta__section { color: var(--accent); font-weight: 700; }
.qmeta__type {
  border: 1px solid var(--paper-edge);
  border-radius: 99px;
  padding: 2px 10px;
  letter-spacing: 0.08em;
}

.question-text {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.45;
  margin: 0 0 22px;
}

.question-figure {
  margin: 0 0 22px;
  border: 1px solid var(--paper-edge);
  background: var(--paper-warm);
  padding: 14px;
  text-align: center;
}
.question-figure img {
  max-width: 100%;
  max-height: 400px;
  display: block;
  margin: 0 auto;
  filter: saturate(0.94);
}
.question-figure figcaption {
  font-size: 12.5px;
  color: var(--ink-muted);
  margin-top: 10px;
}

/* Варианты ответа */
.options { display: flex; flex-direction: column; gap: 10px; margin: 0; padding: 0; }
.option {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  background: var(--paper);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.12s ease;
  position: relative;
}
.option:hover { border-color: var(--ink-muted); transform: translateX(2px); }
.option__chip {
  flex: none;
  width: 26px;
  height: 26px;
  border: 1px solid var(--paper-edge);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink-soft);
  background: var(--paper-warm);
  transition: all 0.16s ease;
}
.option__body { flex: 1 1 auto; min-width: 0; }
.option__text { font-size: 16.2px; }
.option__image {
  display: block;
  margin-top: 10px;
  border: 1px solid var(--paper-edge);
  max-height: 230px;
  width: auto;
  background: var(--paper-warm);
}
.option input { position: absolute; opacity: 0; pointer-events: none; }

.option.is-selected {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.option.is-selected .option__chip {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.option.is-correct {
  border-color: var(--ok);
  background: var(--ok-tint);
}
.option.is-correct .option__chip { background: var(--ok); border-color: var(--ok); color: #fff; }
.option.is-wrong {
  border-color: var(--bad);
  background: var(--bad-tint);
}
.option.is-wrong .option__chip { background: var(--bad); border-color: var(--bad); color: #fff; }
.option.is-locked { cursor: default; }
.option.is-locked:hover { transform: none; }

/* Ввод текста */
.answer-input {
  width: 100%;
  max-width: 420px;
  padding: 14px 15px;
  font-size: 18px;
  font-family: var(--serif);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  background: var(--paper);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.answer-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

/* Таблица в задании */
.qtable { width: 100%; border-collapse: collapse; font-size: 15px; }
.qtable th, .qtable td {
  border: 1px solid var(--paper-edge);
  padding: 10px 12px;
  text-align: left;
  vertical-align: middle;
}
.qtable th {
  background: var(--paper-warm);
  font-family: var(--sans);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}
.qtable td:first-child { font-weight: 600; width: 42%; }
.qtable input, .qtable select {
  width: 100%;
  padding: 8px 10px;
  font-size: 15px;
  font-family: var(--sans);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  background: var(--paper);
}
.qtable input:focus, .qtable select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.qtable tr.is-correct td { background: var(--ok-tint); }
.qtable tr.is-wrong td { background: var(--bad-tint); }

/* Соответствие */
.match-grid { display: flex; flex-direction: column; gap: 10px; }
.match-row {
  display: grid;
  grid-template-columns: 1fr 30px 1.1fr;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  background: var(--paper);
}
.match-row__left { font-size: 15.5px; }
.match-row__arrow { color: var(--ink-muted); text-align: center; }
.match-row select {
  padding: 9px 10px;
  font-size: 15px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  background: var(--paper);
  width: 100%;
}
.match-row select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.match-row.is-correct { border-color: var(--ok); background: var(--ok-tint); }
.match-row.is-wrong { border-color: var(--bad); background: var(--bad-tint); }

/* Порядок */
.order-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.order-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  background: var(--paper);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.order-item__num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-muted);
  width: 20px;
  text-align: right;
}
.order-item__text { flex: 1 1 auto; font-size: 15.5px; }
.order-item__handle {
  flex: none;
  display: flex;
  gap: 4px;
}
.order-item__btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1;
  display: grid;
  place-items: center;
  transition: all 0.14s ease;
}
.order-item__btn:hover { border-color: var(--ink); color: var(--ink); }
.order-item.is-dragging { opacity: 0.5; }
.order-item.is-drop-target { border-color: var(--accent); background: var(--accent-tint); }
.order-item.is-correct { border-color: var(--ok); background: var(--ok-tint); }
.order-item.is-wrong { border-color: var(--bad); background: var(--bad-tint); }

/* Подсказка и служебная строка */
.question-hint {
  font-size: 13.5px;
  color: var(--warn);
  background: var(--warn-tint);
  border-left: 3px solid var(--warn);
  padding: 9px 13px;
  margin-bottom: 18px;
}

.exam__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}
.exam__actions .spacer { flex: 1 1 auto; }
.timer {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 7px;
}
.timer__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.82); }
}

/* Обратная связь после ответа */
.feedback {
  margin-top: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--paper-edge);
  background: var(--paper-warm);
  padding: 18px 20px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.32s ease, transform 0.32s ease;
}
.feedback:empty { display: none; }
.feedback.is-visible { opacity: 1; transform: translateY(0); }
.feedback--ok { border-color: #bfdccb; background: var(--ok-tint); }
.feedback--bad { border-color: #ecc6c5; background: var(--bad-tint); }
.feedback--skip { border-color: #e8dcb9; background: var(--warn-tint); }
.feedback__head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 10px;
}
.feedback--ok .feedback__head { color: var(--ok); }
.feedback--bad .feedback__head { color: var(--bad); }
.feedback--skip .feedback__head { color: var(--warn); }
.feedback__line { font-size: 14.5px; color: var(--ink-soft); margin: 5px 0; }
.feedback__line b { color: var(--ink); font-weight: 600; }
.feedback__explain {
  font-size: 14.5px;
  color: var(--ink-soft);
  border-top: 1px dashed var(--rule);
  margin-top: 10px;
  padding-top: 10px;
  font-family: var(--serif);
}

/* Маркер верно/неверно — рисуется анимацией */
.mark { width: 22px; height: 22px; flex: none; }
.mark path {
  fill: none;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: draw 0.45s ease forwards;
}
.mark--ok path { stroke: var(--ok); }
.mark--bad path { stroke: var(--bad); }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* --------------------------------------------------------------------------
   Боковая колонка экзамена
   -------------------------------------------------------------------------- */

.side { position: sticky; top: 20px; display: flex; flex-direction: column; gap: 16px; }
.side .card { padding: 18px 20px; }
.dots { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 4px; }
.dot {
  width: 15px;
  height: 15px;
  border: 1px solid var(--paper-edge);
  border-radius: 2px;
  background: var(--paper);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}
.dot--current { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-tint); transform: scale(1.12); }
.dot--ok { background: var(--ok); border-color: var(--ok); }
.dot--bad { background: var(--bad); border-color: var(--bad); }
.dot--skip { background: var(--warn); border-color: var(--warn); }

.statline {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--rule);
}
.statline:last-child { border-bottom: none; }
.statline span:last-child { font-family: var(--mono); font-weight: 600; }
.statline--alert span:last-child { color: var(--bad); }

/* --------------------------------------------------------------------------
   Предупреждение о выходе со страницы
   -------------------------------------------------------------------------- */

.guard {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(23, 23, 26, 0.55);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.guard.is-open { opacity: 1; pointer-events: auto; }
.guard__box {
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-top: 4px solid var(--bad);
  padding: 28px 32px;
  max-width: 520px;
  text-align: center;
  transform: translateY(14px) scale(0.98);
  transition: transform 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.guard.is-open .guard__box { transform: translateY(0) scale(1); }
.guard__box h2 { font-size: 22px; color: var(--bad); margin-bottom: 10px; }
.guard__box p { color: var(--ink-soft); font-size: 15px; }

/* Водяной знак с данными студента — виден на скриншотах */
.watermark {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(4, 1fr);
  opacity: 0.055;
  overflow: hidden;
}
.watermark span {
  font-family: var(--serif);
  font-size: 17px;
  transform: rotate(-24deg);
  white-space: nowrap;
  align-self: center;
  justify-self: center;
}

/* --------------------------------------------------------------------------
   Страница результата
   -------------------------------------------------------------------------- */

.result-head {
  padding: 40px 0 26px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: center;
}
.verdict__score {
  font-family: var(--serif);
  font-size: 76px;
  line-height: 1;
  letter-spacing: -0.03em;
}
.verdict__score small { font-size: 26px; color: var(--ink-muted); }
.verdict__line { font-size: 17px; color: var(--ink-soft); margin-top: 12px; }
.verdict__mark {
  display: inline-block;
  font-family: var(--serif);
  font-size: 15px;
  border: 1px solid var(--ink);
  padding: 4px 12px;
  margin-top: 14px;
  letter-spacing: 0.06em;
}

.seal {
  justify-self: center;
  width: 220px;
  height: 220px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--accent);
  position: relative;
  opacity: 0;
  transform: rotate(-16deg) scale(1.4);
  animation: stamp 0.7s 0.25s cubic-bezier(0.2, 0.9, 0.3, 1.1) forwards;
}
.seal::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid var(--accent);
  border-radius: 50%;
}
.seal__inner { padding: 0 16px; }
.seal__label {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.seal__mark {
  font-family: var(--serif);
  font-size: 58px;
  line-height: 1;
  margin: 8px 0 6px;
}
.seal__text { font-size: 11.5px; letter-spacing: 0.06em; }
@keyframes stamp {
  0% { opacity: 0; transform: rotate(-16deg) scale(1.4); }
  60% { opacity: 1; }
  100% { opacity: 0.92; transform: rotate(-8deg) scale(1); }
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
}
.metric {
  background: var(--paper);
  padding: 18px 20px;
  border: 1px solid var(--paper-edge);
  margin: -1px 0 0 -1px;
}
.metric__value {
  font-family: var(--serif);
  font-size: 27px;
  line-height: 1.1;
}
.metric__value--alert { color: var(--bad); }
.metric__label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-top: 5px;
}

.flags { margin: 16px 0 0; padding: 0; list-style: none; }
.flags li {
  font-size: 14px;
  color: var(--bad);
  padding: 7px 0;
  border-bottom: 1px dashed var(--rule);
}
.flags li::before { content: "▲"; font-size: 10px; margin-right: 9px; }

.review { border-top: 1px solid var(--rule); margin-top: 26px; }
.review__item {
  padding: 18px 0;
  border-bottom: 1px solid var(--paper-edge);
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
}
.review__num {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--ink-muted);
  padding-top: 2px;
}
.review__prompt { font-family: var(--serif); font-size: 16.5px; margin-bottom: 8px; }
.review__row { font-size: 14px; color: var(--ink-soft); margin: 3px 0; }
.review__row b { font-weight: 600; color: var(--ink); }
.review__row--ok b { color: var(--ok); }
.review__row--bad b { color: var(--bad); }
.review__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  margin-left: 8px;
  vertical-align: 1px;
}
.review__tag--ok { background: var(--ok-tint); color: var(--ok); }
.review__tag--bad { background: var(--bad-tint); color: var(--bad); }
.review__tag--skip { background: var(--warn-tint); color: var(--warn); }

.copy-box {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}
.copy-link {
  font-family: var(--mono);
  font-size: 13.5px;
  background: var(--paper-warm);
  border: 1px solid var(--paper-edge);
  padding: 12px 14px;
  flex: 1 1 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink-soft);
  border-radius: var(--radius);
}
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 16px);
  background: var(--ink);
  color: #fff;
  padding: 13px 22px;
  border-radius: var(--radius);
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 70;
}
.toast.is-open { opacity: 1; transform: translate(-50%, 0); }

/* --------------------------------------------------------------------------
   Панель преподавателя
   -------------------------------------------------------------------------- */

.admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 18px;
  flex-wrap: wrap;
}
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.filters input, .filters select {
  padding: 10px 12px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  font-size: 14.5px;
  background: var(--paper);
}

.table-wrap { overflow-x: auto; border: 1px solid var(--paper-edge); background: var(--paper); }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th, table.data td {
  padding: 11px 13px;
  border-bottom: 1px solid var(--paper-edge);
  text-align: left;
  white-space: nowrap;
}
table.data th {
  background: var(--paper-warm);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  position: sticky;
  top: 0;
}
table.data tbody tr { transition: background 0.14s ease; }
table.data tbody tr:hover { background: var(--paper-warm); }
table.data td.num { font-family: var(--mono); text-align: right; }
.badge {
  display: inline-block;
  font-size: 11.5px;
  padding: 2px 9px;
  border-radius: 99px;
  border: 1px solid transparent;
}
.badge--ok { background: var(--ok-tint); color: var(--ok); border-color: #cfe5d8; }
.badge--bad { background: var(--bad-tint); color: var(--bad); border-color: #ecc6c5; }
.badge--warn { background: var(--warn-tint); color: var(--warn); border-color: #e8dcb9; }
.badge--muted { background: var(--paper-warm); color: var(--ink-muted); border-color: var(--paper-edge); }
.flag-cell { color: var(--bad); font-weight: 600; }

/* --------------------------------------------------------------------------
   Подвал
   -------------------------------------------------------------------------- */

.footer {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Анимации появления
   -------------------------------------------------------------------------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.rise { animation: rise 0.42s cubic-bezier(0.22, 0.61, 0.36, 1) both; }
.rise-2 { animation-delay: 0.08s; }
.rise-3 { animation-delay: 0.16s; }
.rise-4 { animation-delay: 0.24s; }

@keyframes swap {
  from { opacity: 0; transform: translateX(26px); }
  to { opacity: 1; transform: translateX(0); }
}
.paper.is-swapping { animation: swap 0.34s cubic-bezier(0.22, 0.61, 0.36, 1) both; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* --------------------------------------------------------------------------
   Адаптив
   -------------------------------------------------------------------------- */

@media (max-width: 1020px) {
  .hero { grid-template-columns: 1fr; gap: 30px; }
  .exam { grid-template-columns: 1fr; }
  .side { position: static; flex-direction: row; flex-wrap: wrap; }
  .side .card { flex: 1 1 260px; }
  .result-head { grid-template-columns: 1fr; }
  .seal { justify-self: start; }
}

@media (max-width: 720px) {
  .wrap, .masthead__inner { padding-left: 16px; padding-right: 16px; }
  .hero__title { font-size: 30px; }
  .paper { padding: 24px 20px; }
  .question-text { font-size: 19px; }
  .masthead__aside { display: none; }
  .exam__actions { flex-wrap: wrap; }
  .exam__actions .btn { flex: 1 1 100%; }
  .match-row { grid-template-columns: 1fr; }
  .match-row__arrow { display: none; }
  .option { padding: 13px 14px; }
  .option__text { font-size: 15.6px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .verdict__score { font-size: 58px; }
  .review__item { grid-template-columns: 30px 1fr; gap: 12px; }
}

/* --------------------------------------------------------------------------
   Телефоны: отдельная проработка (до 720 px)
   -------------------------------------------------------------------------- */

.hint-touch { display: none; }

@media (max-width: 720px) {
  body { font-size: 15.5px; }

  /* Шапка компактнее */
  .masthead__inner { padding: 11px 16px; gap: 11px; }
  .masthead__mark { width: 34px; height: 34px; font-size: 15px; border-width: 1.2px; }
  .masthead__title { font-size: 16px; }
  .masthead__sub { font-size: 10.5px; letter-spacing: 0.1em; }
  .rule-double { height: 4px; }

  /* Подсказки: на телефоне вместо клавиатуры — про нажатия */
  .hint-desktop { display: none; }
  .hint-touch { display: block; }

  /* --- Экран работы --- */
  .exam { padding-top: 12px; gap: 14px; }

  .progress {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--paper-warm);
    padding: 9px 0 9px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--paper-edge);
  }
  .progress__label { font-size: 12px; }

  .paper {
    padding: 18px 16px 16px;
    box-shadow: none;
    border-radius: 0;
  }
  .paper__stamp {
    position: static;
    display: block;
    text-align: right;
    margin-bottom: 10px;
    font-size: 10px;
  }
  .qmeta { gap: 8px; font-size: 10.5px; margin-bottom: 10px; }
  .qmeta__type { padding: 2px 8px; }

  .question-text { font-size: 18.5px; line-height: 1.42; margin-bottom: 16px; }
  .question-figure { padding: 8px; margin-bottom: 16px; }
  .question-figure img { max-height: 250px; }
  .question-hint { font-size: 13.5px; padding: 9px 11px; }

  /* Варианты: крупнее для пальца */
  .option { padding: 14px 12px; gap: 11px; }
  .option__chip { width: 29px; height: 29px; font-size: 13px; }
  .option__text { font-size: 16px; }
  .option:hover { transform: none; }
  .option.is-selected { box-shadow: inset 3px 0 0 var(--accent); }

  /* Поля: 16px, чтобы iOS не увеличивал страницу при фокусе */
  .answer-input { font-size: 16px; max-width: none; }
  .qtable { display: block; overflow-x: auto; white-space: nowrap; }
  .qtable th, .qtable td { padding: 9px 10px; }
  .qtable input, .qtable select { font-size: 16px; min-width: 118px; }
  .match-row { padding: 12px; gap: 8px; }
  .match-row__left { font-size: 15.5px; }
  .match-row select { font-size: 16px; padding: 11px 10px; }
  .order-item { padding: 13px 12px; gap: 10px; }
  .order-item__text { font-size: 15.5px; }
  .order-item__btn { width: 38px; height: 38px; font-size: 16px; }

  /* Кнопки — «липкая» панель внизу, под большой палец */
  .exam__actions {
    position: sticky;
    bottom: 0;
    z-index: 20;
    background: var(--paper);
    margin: 18px -16px -16px;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--paper-edge);
    gap: 10px;
  }
  .exam__actions .spacer { display: none; }
  #next-btn { flex: 1 1 auto; padding: 15px 18px; font-size: 14px; }
  #skip-btn { flex: 0 0 auto; padding: 15px 14px; font-size: 12.5px; }
  .timer { font-size: 12.5px; }

  .feedback { padding: 14px 14px; margin-top: 16px; }
  .feedback__head { font-size: 14.5px; }
  .feedback__line, .feedback__explain { font-size: 14px; }

  /* Боковая панель уходит под вопрос и сжимается */
  .side { flex-direction: column; gap: 12px; }
  .side .card { padding: 14px 16px; flex: none; }
  .side .card:nth-child(3) { display: none; }   /* «Памятка» не нужна — она есть под вопросом */
  .dots { gap: 4px; }
  .dot { width: 13px; height: 13px; }
  .statline { padding: 6px 0; font-size: 13.5px; }

  /* --- Стартовая страница --- */
  .hero { padding: 22px 0 18px; }
  .hero__title { font-size: 27px; }
  .lede { font-size: 16px; }
  .hero__facts { gap: 18px; margin-top: 20px; padding-top: 16px; }
  .fact__value { font-size: 22px; }
  .fact__label { font-size: 10.5px; }
  .card { padding: 18px 16px; }
  .rules li { font-size: 14.5px; padding-left: 22px; }
  .field input[type="text"] { font-size: 16px; padding: 13px; }
  /* Объём работы — крупные «таблетки» в две колонки */
  .length-picker { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }
  .length-picker label { padding: 12px 0; text-align: center; font-size: 15px; }
  .types-grid { grid-template-columns: 1fr 1fr; gap: 8px 14px; }
  .types-grid span { font-size: 13.5px; }

  /* --- Результат --- */
  .result-head { gap: 18px; padding: 22px 0 14px; }
  .verdict__score { font-size: 54px; }
  .verdict__line { font-size: 15.5px; }
  .verdict__mark { font-size: 14px; }
  .seal { width: 170px; height: 170px; justify-self: start; }
  .seal__mark { font-size: 44px; }
  .seal__label { font-size: 9.5px; }
  .seal__text { font-size: 10.5px; }
  .metric { padding: 14px 14px; border: none; border-bottom: 1px solid var(--paper-edge); margin: 0; }
  .metric__value { font-size: 23px; }
  .metric__label { font-size: 10.5px; }
  .copy-box { flex-direction: column; align-items: stretch; }
  .copy-link { flex: none; font-size: 12.5px; }
  .copy-box .btn { width: 100%; }
  .review__item { padding: 15px 0; }
  .review__prompt { font-size: 15.5px; }
  .review__row { font-size: 13.5px; }

  /* --- Панель преподавателя --- */
  .admin-head { padding: 20px 0 14px; gap: 12px; }
  .admin-head h2 { font-size: 21px; }
  .filters { width: 100%; }
  .filters input, .filters select { flex: 1 1 100%; }
  .filters .btn { flex: 1 1 auto; }
  table.data { font-size: 13px; }
  table.data th, table.data td { padding: 9px 10px; }

  .footer { flex-direction: column; gap: 8px; font-size: 12.5px; }
}

/* На сенсорных экранах убираем «залипающие» hover-эффекты */
@media (hover: none) {
  .option:hover { border-color: var(--paper-edge); transform: none; }
  .order-item__btn:hover { border-color: var(--paper-edge); color: var(--ink-soft); }
  .btn:hover { text-decoration: none; }
  .card:hover, table.data tbody tr:hover { background: inherit; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}