/* ===========================================================
   serv1c.ru — калькулятор релизов 1С (публичная страница)
   Внешний вид повторяет внутренний инструмент платформы, но здесь нет
   ни данных, ни расчётов — все списки и результат приходят с сервера.
   Использует переменные :root из styles.css + несколько дополнительных
   ниже (только для этой страницы).
   =========================================================== */

:root {
  --calc-input-bg: var(--color-input-bg);
  --calc-warning-bg: var(--color-warning-bg);
  --calc-warning-text: var(--color-warning-text);
}

/* ---------- Hero ---------- */

.calc-hero {
  text-align: center;
  padding: 56px 0 32px;
  background:
    radial-gradient(600px 260px at 15% -10%, var(--color-accent-soft), transparent 60%),
    var(--color-bg);
}

.calc-hero h1 {
  font-size: clamp(28px, 4.4vw, 40px);
  line-height: 1.15;
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.calc-hero .calc-lead {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin: 0 auto;
  max-width: 560px;
}

/* ---------- Секция и контейнер ---------- */

.calc-section { padding: 48px 0 80px; }
.calc-container { max-width: 640px; }

/* ---------- Инфо-полоса ---------- */

.calc-info-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; min-height: 0; }

.calc-chip {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  white-space: nowrap;
}

/* ---------- Карточка формы ---------- */

.calc-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-card);
}

.calc-step { margin-bottom: 24px; }
.calc-step:last-child { margin-bottom: 0; }

.calc-step-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
}

.calc-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* ---------- Select ---------- */

.calc-select {
  width: 100%;
  padding: 13px 40px 13px 14px;
  font-size: 14.5px;
  font-weight: 500;
  font-family: inherit;
  background-color: var(--calc-input-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%239CA3AF' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.calc-select:hover:not(:disabled) { border-color: var(--color-text-muted); }

.calc-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}

.calc-select:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- Переключатель «Последняя / LTS» ---------- */

.calc-seg-switch {
  display: inline-flex;
  background: var(--color-bg-section);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
  margin-bottom: 8px;
}

.calc-seg-switch button {
  border: none;
  background: transparent;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: 7px;
  transition: background .15s ease, color .15s ease;
}

.calc-seg-switch button:hover:not(.active):not(.disabled) { color: var(--color-text); }

.calc-seg-switch button.active {
  background: var(--color-bg-card);
  color: var(--color-accent-dark);
  font-weight: 600;
  box-shadow: var(--shadow-card);
}

.calc-seg-switch button.disabled { opacity: .45; cursor: not-allowed; }

.calc-seg-hint {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 6px;
  line-height: 1.45;
}

/* ---------- Кнопка «Рассчитать» ---------- */

.calc-btn {
  width: 100%;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  background: var(--color-accent);
  color: var(--color-on-accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .15s ease, transform .1s ease;
}

.calc-btn:hover:not(:disabled) { background: var(--color-accent-dark); }
.calc-btn:active:not(:disabled) { transform: translateY(1px); }

.calc-btn:disabled {
  background: var(--color-bg-section);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

/* ---------- Результат ---------- */

.calc-result {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.calc-result-summary {
  padding: 24px 28px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 18px;
  align-items: center;
  background: linear-gradient(180deg, var(--color-accent-soft) 0%, transparent 100%);
}

.calc-metric { text-align: center; }

.calc-metric-val {
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--color-accent-dark);
  line-height: 1;
}

.calc-metric-lbl {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 6px;
}

.calc-result-target {
  grid-column: 1 / -1;
  text-align: left;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.calc-result-divider { height: 1px; background: var(--color-border); }

/* ---------- Цепочка версий ---------- */

.calc-chain { padding: 20px 28px; list-style: none; margin: 0; }

.calc-chain-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 10px 0;
  position: relative;
}

.calc-chain-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 15px;
  top: 40px;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.calc-chain-dot {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.calc-chain-dot.start {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border: 2px solid var(--color-accent);
}

.calc-chain-dot.mid {
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  border: 2px solid var(--color-border);
}

.calc-chain-dot.end {
  background: var(--color-accent);
  color: var(--color-on-accent);
  border: 2px solid var(--color-accent);
}

.calc-chain-info {
  flex: 1;
  padding-top: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.calc-chain-ver { font-size: 15px; font-weight: 600; color: var(--color-text); letter-spacing: -.01em; }
.calc-chain-date { font-size: 12px; color: var(--color-text-muted); margin-top: 2px; font-weight: 500; }

.calc-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.calc-badge-warn { background: var(--calc-warning-bg); color: var(--calc-warning-text); }

/* ---------- Копирование ---------- */

.calc-copy-row { padding: 14px 28px 20px; display: flex; justify-content: flex-end; }

.calc-copy-btn {
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}

.calc-copy-btn:hover { color: var(--color-text); border-color: var(--color-text-muted); }

/* ---------- Ошибка ---------- */

.calc-result-error { padding: 36px 28px; text-align: center; }
.calc-err-icon { font-size: 1.8rem; margin-bottom: 10px; color: var(--color-warning); }
.calc-result-error p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.5; max-width: 380px; margin: 0 auto; }

/* ---------- Адаптив ---------- */

@media (max-width: 560px) {
  .calc-grid-2 { grid-template-columns: 1fr; }
  .calc-card { padding: 20px; }
  .calc-result-summary { padding: 18px 20px; grid-template-columns: 1fr 1fr; }
  .calc-chain, .calc-copy-row { padding-left: 20px; padding-right: 20px; }
}