/**
 * Калькулятор единиц информации (/kalkulyator-informacii/).
 * Оформление повторяет калькулятор IP-сетей: стеклянные панели, вкладки, моноширинные поля.
 */

.page--info-calc {
  --infc-accent: #22d3ee;
  --infc-accent-soft: rgba(34, 211, 238, 0.14);
  --infc-violet-soft: rgba(139, 92, 246, 0.16);
  --infc-error: #f43f5e;
  --infc-panel-bg: linear-gradient(165deg, rgba(30, 41, 59, 0.74) 0%, rgba(15, 23, 42, 0.9) 100%);
  --infc-panel-border: rgba(255, 255, 255, 0.1);
  --infc-cell-bg: rgba(255, 255, 255, 0.04);
  --infc-input-bg: rgba(15, 23, 42, 0.6);
  --infc-text: var(--white);
  --infc-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  padding-bottom: 0 !important;
}

[data-theme="light"] .page--info-calc {
  --infc-accent: #0891b2;
  --infc-accent-soft: rgba(8, 145, 178, 0.1);
  --infc-violet-soft: rgba(124, 58, 237, 0.1);
  --infc-panel-bg: linear-gradient(165deg, #ffffff 0%, #f1f5f9 100%);
  --infc-panel-border: rgba(15, 23, 42, 0.08);
  --infc-cell-bg: rgba(15, 23, 42, 0.04);
  --infc-input-bg: #ffffff;
}

.infc-main {
  width: min(60rem, 100%);
  margin: 0 auto;
  padding: 0 clamp(0.75rem, 2vw, 1.5rem) 1.5rem;
  color: var(--infc-text);
}

/* ── Hero ── */

.infc-hero {
  margin: 0.75rem 0 1rem;
}

.infc-hero__badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  background: var(--infc-accent-soft);
  color: var(--infc-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.infc-hero__title {
  margin: 0.45rem 0 0.35rem;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.15;
}

.infc-hero__text {
  margin: 0;
  max-width: 42rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ── Вкладки ── */

.infc-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
  padding: 0.35rem;
  border-radius: 1rem;
  border: 1px solid var(--infc-panel-border);
  background: var(--infc-panel-bg);
}

.infc-tabs__tab {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 0.75rem;
  padding: 0.6rem 0.5rem;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.infc-tabs__tab:hover {
  color: var(--infc-text);
}

.infc-tabs__tab.is-active {
  color: var(--infc-text);
  border-color: rgba(34, 211, 238, 0.35);
  background: linear-gradient(135deg, var(--infc-accent-soft) 0%, var(--infc-violet-soft) 100%);
}

/* ── Панель ── */

.infc-panel {
  margin-top: 0.75rem;
  padding: 1.1rem clamp(0.85rem, 2.5vw, 1.4rem) 1.3rem;
  border-radius: 1.1rem;
  border: 1px solid var(--infc-panel-border);
  background: var(--infc-panel-bg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.26), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  animation: infc-fade-in 0.25s ease-out;
}

[data-theme="light"] .infc-panel {
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

@keyframes infc-fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Форма ── */

.infc-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.75rem 1rem;
}

.infc-field {
  display: grid;
  gap: 0.3rem;
}

.infc-field__label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.infc-field__input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.6rem 0.75rem;
  border-radius: 0.6rem;
  border: 1px solid var(--infc-panel-border);
  background: var(--infc-input-bg);
  color: var(--infc-text);
  font-family: var(--infc-mono);
  font-size: 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.infc-field__input:focus {
  outline: none;
  border-color: var(--infc-accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.18);
}

select.infc-field__input {
  font-family: inherit;
  font-size: 0.9rem;
}

.infc-field--check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  grid-column: 1 / -1;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

.infc-status {
  min-height: 1.2rem;
  margin: 0.6rem 0 0.2rem;
  font-size: 0.85rem;
}

.infc-status.is-error {
  color: var(--infc-error);
}

/* ── Таблица перевода ── */

.infc-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--infc-mono);
  font-size: 0.95rem;
}

.infc-table th,
.infc-table td {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--infc-panel-border);
  text-align: left;
}

.infc-table th {
  width: 8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.infc-table td {
  word-break: break-all;
}

.infc-table tr.is-source {
  background: var(--infc-accent-soft);
}

.infc-table--static {
  margin: 0.75rem 0 1rem;
  font-size: 0.88rem;
}

/* ── Шаги решения ── */

.infc-steps {
  margin: 0.4rem 0 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 0.45rem;
}

.infc-steps__item {
  font-family: var(--infc-mono);
  font-size: 0.92rem;
  line-height: 1.5;
}

.infc-steps__item:last-child {
  font-weight: 700;
  color: var(--infc-accent);
}

/* ── Справка ── */

.infc-guide {
  margin-top: 1.5rem;
  padding: 1.1rem clamp(0.85rem, 2.5vw, 1.4rem);
  border-radius: 1.1rem;
  border: 1px solid var(--infc-panel-border);
  background: var(--infc-cell-bg);
}

.infc-guide__title {
  margin: 0.4rem 0 0.5rem;
  font-size: 1.15rem;
}

.infc-guide__text,
.infc-guide__list {
  margin: 0 0 0.75rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.infc-guide__list {
  padding-left: 1.2rem;
}

.infc-guide__text a,
.infc-guide__links a {
  color: var(--infc-accent);
}

.infc-guide__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.88rem;
}

@media (max-width: 640px) {
  .infc-tabs {
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .infc-panel {
    animation: none;
  }
}