/* Parker: подробный кейс (case-bank.html). Использует токены и компоненты из site.css.
   Акцент на странице отмечает один момент: переключение трафика (шаг 4, полоса в хронологии). */

/* ---------- Шапка кейса ---------- */
.cb-hero-grid { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: 40px clamp(32px, 5vw, 96px); align-items: end; }
.cb-client { font-size: 15px; font-weight: 500; color: var(--text-2); margin-bottom: 26px; }
.cb-title { font-size: clamp(38px, 4vw, 64px); line-height: 1.02; max-width: 23ch; }
.cb-hero-copy .lead { margin-top: 30px; max-width: 50ch; }
.cb-facts { display: grid; border-bottom: 1px solid var(--line); }
.cb-facts > div { display: grid; grid-template-columns: 116px 1fr; gap: 16px; padding: 13px 0; border-top: 1px solid var(--line); }
.cb-facts dt { font-size: 14px; color: var(--text-3); padding-top: 1px; }
.cb-facts dd { font-size: 15px; line-height: 1.45; }
.cb-facts .link { padding-bottom: 2px; }
.cb-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin-top: clamp(48px, 5vw, 72px); }
.cb-metrics .metric { padding-top: 26px; border-top: 1px solid var(--line-2); }
.cb-metrics .metric-value { white-space: nowrap; }

/* ---------- Разделы ---------- */
.cb-sec { padding-block: clamp(80px, 9vw, 140px); border-top: 1px solid var(--line); }
.cb-row { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 24px clamp(32px, 5vw, 96px); align-items: start; }
.cb-row > .cb-h { position: sticky; top: calc(var(--header-h) + 32px); }
.cb-h { font-weight: 400; font-size: clamp(30px, 2.8vw, 44px); line-height: 1.08; letter-spacing: -0.03em; text-wrap: balance; }
.cb-head { display: grid; gap: 16px; margin-bottom: clamp(40px, 5vw, 64px); }
.cb-head p { font-size: 17px; line-height: 1.55; color: var(--text-2); max-width: 46ch; }
.cb-first { font-weight: 380; font-size: clamp(21px, 1.8vw, 26px); line-height: 1.4; letter-spacing: -0.015em; color: var(--text); max-width: 36ch; text-wrap: pretty; }
.cb-prose p:not(.cb-first) { font-size: 18px; line-height: 1.65; color: var(--text-2); max-width: 62ch; }
.cb-prose p + p { margin-top: 20px; }
.cb-prose .cb-first + p { margin-top: 28px; }

/* Ограничения: ключ крупно, пояснение рядом */
.limits li { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 16px clamp(24px, 3vw, 48px); padding: 30px 0 34px; border-top: 1px solid var(--line); }
.limits li:first-child { border-top: 0; padding-top: 4px; }
.limit-key { font-weight: 300; font-size: clamp(34px, 3.2vw, 52px); line-height: 1; letter-spacing: -0.04em; white-space: nowrap; font-variant-numeric: lining-nums; }
.limits h3 { font-weight: 450; font-size: clamp(20px, 1.6vw, 23px); letter-spacing: -0.015em; line-height: 1.25; }
.limits p:not(.limit-key) { margin-top: 10px; font-size: 17px; line-height: 1.6; color: var(--text-2); max-width: 54ch; }

/* Решение: последовательные шаги */
.cb-steps { margin-top: 36px; }
.cb-steps li { position: relative; display: grid; grid-template-columns: 44px 1fr; gap: 20px; padding-bottom: 34px; }
.cb-steps li:last-child { padding-bottom: 0; }
.cb-steps li:not(:last-child)::before { content: ""; position: absolute; left: 21.5px; top: 52px; bottom: 8px; width: 1px; background: var(--line-2); }
.cb-step-num { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line-2); font-size: 15px; font-weight: 500; color: var(--text-2); font-variant-numeric: tabular-nums; }
.cb-steps li:last-child .cb-step-num { border-color: var(--accent); color: var(--accent); }
.cb-steps h3 { font-weight: 450; font-size: clamp(20px, 1.6vw, 23px); letter-spacing: -0.015em; line-height: 1.25; padding-top: 9px; }
.cb-steps p { margin-top: 10px; font-size: 17px; line-height: 1.6; color: var(--text-2); max-width: 56ch; }

/* Схема миграции крупно */
.cb-schema { margin-top: clamp(64px, 7vw, 104px); }
.cb-schema-viz {
  position: relative; aspect-ratio: 21 / 9; min-height: 360px; overflow: clip;
  border-radius: var(--r-l); border: 1px solid var(--line);
  background: radial-gradient(90% 120% at 50% 0%, #161b23, #0e1116 72%);
}
.cb-schema-viz canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.cb-schema figcaption { margin-top: 16px; font-size: 15px; line-height: 1.5; color: var(--text-3); max-width: 70ch; }

/* ---------- Хронология: этапы на сетке месяцев ---------- */
.gantt { --cols: 11; }
.g-scale, .g-row { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 12px clamp(24px, 3vw, 56px); }
.g-scale { padding-bottom: 12px; }
.g-scale-label { font-size: 13px; color: var(--text-3); align-self: end; }
.g-months { display: grid; grid-template-columns: repeat(var(--cols), minmax(0, 1fr)); }
.g-months { border-right: 1px solid var(--line); }
.g-months span { padding-left: 7px; font-size: 13px; color: var(--text-3); font-variant-numeric: tabular-nums; border-left: 1px solid var(--line); line-height: 1.8; }
.g-rows { border-bottom: 1px solid var(--line); }
.g-row { align-items: center; padding: 22px 0; border-top: 1px solid var(--line); }
.g-when { display: block; font-size: 13px; color: var(--text-3); font-variant-numeric: tabular-nums; margin-bottom: 6px; }
.g-label h3 { font-weight: 450; font-size: 19px; letter-spacing: -0.012em; line-height: 1.3; }
.g-label p { margin-top: 6px; font-size: 15px; line-height: 1.5; color: var(--text-2); max-width: 46ch; }
.g-track {
  display: grid; grid-template-columns: repeat(var(--cols), minmax(0, 1fr)); align-items: center; align-self: stretch; min-height: 40px;
  background-image: linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: calc(100% / var(--cols)) 100%;
  border-right: 1px solid var(--line);
}
.g-bar { grid-column: var(--s) / var(--e); grid-row: 1; height: 12px; margin-inline: 3px; border-radius: 999px; background: rgba(233, 236, 241, 0.34); transform-origin: 0 50%; }
.g-row--key .g-bar { background: var(--accent); }
.g-row--key .g-when { color: var(--accent); }
.js .gantt .g-bar { transform: scaleX(0); transition: transform 0.9s var(--ease-out); transition-delay: calc(0.25s + var(--i, 0) * 0.12s); }
.js .gantt.is-in .g-bar { transform: none; }

/* ---------- Результаты ---------- */
.results { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(32px, 5vw, 96px); }
.results > div { padding: 32px 0 44px; border-top: 1px solid var(--line-2); }
.results dt { font-weight: 300; font-size: clamp(56px, 7vw, 112px); line-height: 0.92; letter-spacing: -0.05em; font-variant-numeric: lining-nums; white-space: nowrap; }
.results dd { margin-top: 20px; font-size: 17px; line-height: 1.55; color: var(--text-2); max-width: 40ch; }
.results strong { color: var(--text); font-weight: 500; }

/* ---------- Команда и технологии ---------- */
.cb-split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px clamp(40px, 7vw, 128px); align-items: start; }
.cb-split .cb-h { margin-bottom: 28px; }
.team { border-bottom: 1px solid var(--line); }
.team li { display: grid; grid-template-columns: 64px 1fr; gap: 12px; align-items: baseline; padding: 13px 0; border-top: 1px solid var(--line); }
.team-n { font-weight: 330; font-size: 30px; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums lining-nums; }
.team li span:last-child { font-size: 17px; line-height: 1.4; }
.team-note { margin-top: 24px; font-size: 16px; line-height: 1.55; color: var(--text-2); max-width: 44ch; }
.tech { border-bottom: 1px solid var(--line); }
.tech > div { display: grid; grid-template-columns: 160px 1fr; gap: 12px 24px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); }
.tech dt { font-size: 15px; font-weight: 500; color: var(--text-2); }
.tech ul { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Следующий кейс ---------- */
.cb-next { padding-bottom: clamp(48px, 5vw, 72px); }
.cb-next-label { font-size: 15px; font-weight: 500; color: var(--text-3); margin-bottom: 20px; }
.next-case {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); text-decoration: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-l);
  transition: border-color 0.3s ease, transform 0.3s var(--ease-out);
}
.next-case.glow-card { overflow: clip; }
@media (hover: hover) and (pointer: fine) { .next-case:hover { border-color: var(--line-2); } .next-case:hover .next-more { color: var(--accent-2); } }
.next-case:active { transform: scale(0.995); }
.next-viz { position: relative; min-height: 400px; background: radial-gradient(120% 100% at 50% 0%, #161b23, #0e1116 70%); border-right: 1px solid var(--line); }
.next-viz canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.next-body { display: flex; flex-direction: column; gap: 18px; padding: clamp(28px, 3.6vw, 56px); }
.next-client { font-size: 14px; font-weight: 500; color: var(--text-2); }
.next-title { font-weight: 400; font-size: clamp(26px, 2.4vw, 36px); letter-spacing: -0.026em; line-height: 1.14; text-wrap: balance; }
.next-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); }
.next-metrics dt { font-weight: 330; font-size: clamp(26px, 2.2vw, 34px); letter-spacing: -0.035em; line-height: 1; white-space: nowrap; }
.next-metrics dd { margin-top: 8px; font-size: 14px; line-height: 1.4; color: var(--text-2); }
.next-more { font-size: 15px; font-weight: 500; transition: color 0.2s ease; }

/* ---------- Финальный призыв ---------- */
.cb-cta { border-top: 0; padding-top: 0; padding-bottom: clamp(72px, 8vw, 120px); }
.cta-panel {
  position: relative; isolation: isolate; overflow: clip;
  /* The side column is never narrower than both CTAs in one row */
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(min-content, 5fr); gap: 32px clamp(32px, 5vw, 96px); align-items: end;
  padding: clamp(32px, 5.4vw, 88px);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-l);
}
.cta-panel .h2 { font-size: clamp(34px, 3.8vw, 58px); max-width: 16ch; }
.cta-side p { font-size: 18px; line-height: 1.55; color: var(--text-2); max-width: 42ch; }
.cta-actions { display: flex; flex-wrap: nowrap; gap: 12px; margin-top: 28px; }

/* Правило .footer a в site.css перекрашивает текст кнопки в серый (контраст 1,9:1). Возвращаем цвет кнопки */

/* ---------- Адаптив ---------- */
@media (max-width: 1100px) {
  .cb-hero-grid { grid-template-columns: 1fr; }
  .cb-facts { max-width: 560px; }
  .cb-split { grid-template-columns: 1fr; }
  .cta-panel { grid-template-columns: 1fr; }
  .cta-actions { flex-wrap: wrap; }
}
@media (max-width: 900px) {
  .cb-metrics { grid-template-columns: 1fr; gap: 28px; }
  .cb-row { grid-template-columns: 1fr; }
  .cb-row > .cb-h { position: static; margin-bottom: 8px; }
  .cb-schema-viz { aspect-ratio: 4 / 3; min-height: 0; }
  .g-scale, .g-row { grid-template-columns: 1fr; }
  .g-scale-label { display: none; }
  .g-row { padding: 20px 0 22px; }
  .g-track { min-height: 28px; }
  .results { grid-template-columns: 1fr; }
  .next-case { grid-template-columns: 1fr; }
  .next-viz { min-height: 0; aspect-ratio: 16 / 10; border-right: 0; border-bottom: 1px solid var(--line); }
  .cta-panel { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .cb-facts > div { grid-template-columns: 104px 1fr; }
  .cb-title { font-size: 34px; line-height: 1.04; }
  .team li { grid-template-columns: 48px 1fr; }
  .team-n { font-size: 26px; }
  .limits li { grid-template-columns: 1fr; padding: 24px 0 26px; }
  .cb-steps li { grid-template-columns: 38px 1fr; gap: 16px; }
  .cb-step-num { width: 38px; height: 38px; font-size: 14px; }
  .cb-steps li:not(:last-child)::before { left: 18.5px; top: 46px; }
  .cb-steps h3 { padding-top: 6px; }
  .g-months span { padding-left: 4px; font-size: 12px; }
  .tech > div { grid-template-columns: 1fr; gap: 10px; }
  .next-metrics { gap: 10px; }
  .next-metrics dt { font-size: clamp(22px, 7vw, 28px); }
  .next-metrics dd { font-size: 13px; }
  .cta-actions { display: grid; grid-template-columns: 1fr; }
}