/* ===================================================================
   VibeTools — Калькулятор юнит-экономики WB/Ozon
   Архетип: Analyst + Helper (teal, side-by-side, светофор маржи)
   Источник: Dev/mp/DESIGN.md
   =================================================================== */

/* ─── 1. Переменные ──────────────────────────────────────────────── */
:root {
  /* Основные — Deep Teal (analyst + expertise) */
  --color-primary:        #0E7C86;
  --color-primary-hover:  #0B6570;
  --color-primary-light:  #E6F5F6;
  --color-primary-muted:  rgba(14, 124, 134, 0.10);

  /* Брендовые акценты колонок */
  --color-wb:             #CB11AB;
  --color-wb-light:       #FDF0FA;
  --color-wb-border:      #F5C9EB;
  --color-ozon:           #005BFF;
  --color-ozon-light:     #EAF1FF;
  --color-ozon-border:    #C7D9FB;

  /* Светофор маржи */
  --color-margin-green:         #15803D;
  --color-margin-green-bg:      #F0FDF4;
  --color-margin-yellow:        #B45309;
  --color-margin-yellow-bg:     #FEFCE8;
  --color-margin-orange:        #C2410C;
  --color-margin-orange-bg:     #FFF7ED;
  --color-margin-red:           #B91C1C;
  --color-margin-red-bg:        #FEF2F2;

  /* Семантические */
  --color-success:        #15803D;
  --color-success-light:  #F0FDF4;
  --color-warning:        #B45309;
  --color-warning-light:  #FEFCE8;
  --color-danger:         #B91C1C;
  --color-danger-light:   #FEF2F2;

  /* Текст */
  --color-text:           #0F1E20;
  --color-text-muted:     #5A6E71;
  --color-text-subtle:    #8A9A9D;

  /* Поверхности */
  --color-bg:             #FAFBFB;
  --color-bg-secondary:   #F1F4F5;
  --color-surface:        #FFFFFF;
  --color-surface-raised: #FFFFFF;
  --color-border:         #D9E0E1;
  --color-border-strong:  #B9C4C6;

  /* Геометрия */
  --radius-sm:   0.25rem;
  --radius:      0.375rem;
  --radius-lg:   0.5rem;
  --radius-xl:   0.75rem;

  /* Отступы (8px grid) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Тени */
  --shadow-sm:  0 1px 2px 0 rgba(15, 30, 32, 0.04);
  --shadow:     0 1px 3px 0 rgba(15, 30, 32, 0.06), 0 1px 2px -1px rgba(15, 30, 32, 0.04);
  --shadow-md:  0 4px 8px -2px rgba(15, 30, 32, 0.08), 0 2px 4px -2px rgba(15, 30, 32, 0.04);
  --shadow-accent: 0 4px 16px -4px rgba(14, 124, 134, 0.25);

  /* Типографика */
  --font-sans:    'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs:  0.75rem;
  --font-size-sm:  0.875rem;
  --font-size-md:  0.9375rem;
  --font-size-lg:  1.125rem;
  --font-size-xl:  1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --line-height:   1.55;

  /* Анимация */
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Контейнер */
  --container-max: 1120px;
  --container-px:  var(--space-4);
}

/* ─── 2. Сброс ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ─── 3. Контейнер ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* ─── 4. Header ──────────────────────────────────────────────────── */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5) 0 var(--space-4);
}

.site-header__title {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.site-header__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.tariff-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-3);
  background: #FFFFFF;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(14, 124, 134, 0.06);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.tariff-badge:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(14, 124, 134, 0.12);
  transform: translateY(-1px);
  text-decoration: none;
}
.tariff-badge__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-margin-green);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

/* ─── 5. Main ────────────────────────────────────────────────────── */
.site-main { flex: 1; padding: var(--space-6) 0 var(--space-10); }

/* ─── 6. Calc Layout ─────────────────────────────────────────────── */
.calc-section { margin-bottom: var(--space-10); }

.calc-layout {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 960px) {
  .calc-layout {
    grid-template-columns: 360px 1fr;
    align-items: start;
  }
}

.calc-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
}

@keyframes calc-pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(14, 124, 134, 0.35); }
  100% { box-shadow: 0 0 0 12px rgba(14, 124, 134, 0); }
}
.calc-layout--pulse .calc-form {
  animation: calc-pulse-ring 1.2s ease-out;
  border-radius: var(--radius-lg);
}

/* ─── 7. Form ────────────────────────────────────────────────────── */
.calc-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 2.5vw, 1.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.form-group:last-child { border-bottom: none; padding-bottom: 0; }

.field { display: flex; flex-direction: column; gap: var(--space-1); }

.field__label {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.field__label .tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 600;
  cursor: help;
  background: var(--color-surface);
}

.field__label .tooltip-icon:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.field__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.field__input,
.field__select {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-md);
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  -moz-appearance: textfield;
}

.field__input::-webkit-outer-spin-button,
.field__input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.field__input:hover,
.field__select:hover { border-color: var(--color-border-strong); }

.field__input:focus,
.field__select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-muted);
}

.field__input--error { border-color: var(--color-danger); }
.field__error { font-size: var(--font-size-xs); color: var(--color-danger); margin-top: var(--space-1); }

/* ─── 8. Toggle Group (FBO/FBS) ──────────────────────────────────── */
.toggle-group {
  display: flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.toggle-group__btn {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: 500;
  font-family: var(--font-sans);
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  min-height: 40px;
}

.toggle-group__btn--active {
  background: var(--color-surface);
  color: var(--color-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* ─── 9. Ozon 06.04 Toggle (KILLER) ──────────────────────────────── */
.ozon-toggle {
  background: linear-gradient(135deg, var(--color-ozon-light) 0%, #FFFFFF 100%);
  border: 1px solid var(--color-ozon-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  transition: border-color var(--transition);
}

.ozon-toggle:hover { border-color: var(--color-ozon); }

.ozon-toggle__info { flex: 1; }

.ozon-toggle__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.ozon-toggle__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.ozon-toggle__switch {
  position: relative;
  width: 42px; height: 24px;
  background: var(--color-border-strong);
  border-radius: 9999px;
  flex-shrink: 0;
  transition: background var(--transition);
  cursor: pointer;
  border: none;
  padding: 0;
}

.ozon-toggle__switch::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  background: #fff;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}

.ozon-toggle__switch--on { background: var(--color-ozon); }
.ozon-toggle__switch--on::after { transform: translateX(18px); }

/* ─── 10. Compare Grid ───────────────────────────────────────────── */
.compare-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 600px) {
  .compare-grid { grid-template-columns: 1fr 1fr; }
}

.compare-col {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 2.5vw, 1.25rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.compare-col--wb   { border-top: 3px solid var(--color-wb); }
.compare-col--ozon { border-top: 3px solid var(--color-ozon); }

.compare-col__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.compare-col__brand,
.compare-col__model {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.compare-col--wb   .compare-col__brand { color: var(--color-wb); }
.compare-col--ozon .compare-col__brand { color: var(--color-ozon); }
.compare-col__model {
  color: var(--color-text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.compare-col__head .tooltip-trigger {
  width: 14px;
  height: 14px;
  font-size: 10px;
  color: var(--color-text-subtle);
  border-color: var(--color-border);
}

/* ─── 11. Result Amount ──────────────────────────────────────────── */
.result-amount {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--color-text);
}
.result-amount__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}
.result-amount__label .tooltip-trigger {
  width: 14px;
  height: 14px;
  font-size: 10px;
}
.result-amount__value {
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.result-amount--positive { color: var(--color-margin-green); }
.result-amount--negative { color: var(--color-margin-red); }

.result-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

/* ─── 12. Margin Verdict (светофор) ──────────────────────────────── */
.margin-verdict {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: background var(--transition), color var(--transition);
}

.margin-verdict--green   { background: var(--color-margin-green-bg);  color: var(--color-margin-green); }
.margin-verdict--yellow  { background: var(--color-margin-yellow-bg); color: var(--color-margin-yellow); }
.margin-verdict--orange  { background: var(--color-margin-orange-bg); color: var(--color-margin-orange); }
.margin-verdict--red     { background: var(--color-margin-red-bg);    color: var(--color-margin-red); }

.margin-verdict__icon { font-size: var(--font-size-md); }
.margin-verdict__pct  { font-variant-numeric: tabular-nums; font-weight: 700; }

/* ─── 13. Breakeven ──────────────────────────────────────────────── */
.breakeven-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-2) 0;
  border-top: 1px dashed var(--color-border);
  font-size: var(--font-size-sm);
}

.breakeven-row__label { color: var(--color-text-muted); }
.breakeven-row__value {
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

/* ─── 14. Breakdown (разбивка через CSS bars) ───────────────────── */
.breakdown {
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}

.breakdown__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0;
  background: none;
  border: none;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-sans);
}

.breakdown__toggle::after { content: "▾"; font-size: 10px; transition: transform var(--transition); }
.breakdown__toggle[aria-expanded="true"]::after { transform: rotate(180deg); }

.breakdown__list {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.breakdown__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
}

.breakdown__label { color: var(--color-text-muted); }
.breakdown__value {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--color-text);
}

.breakdown__bar {
  grid-column: 1 / -1;
  height: 6px;
  background: var(--color-bg-secondary);
  border-radius: 9999px;
  overflow: hidden;
}

.breakdown__bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 9999px;
  transition: width 300ms ease;
}

.breakdown__bar-fill--cost      { background: #64748B; }
.breakdown__bar-fill--fee       { background: var(--color-primary); }
.breakdown__bar-fill--logistics { background: #0EA5E9; }
.breakdown__bar-fill--ads       { background: var(--color-wb); }
.breakdown__bar-fill--tax       { background: var(--color-warning); }
.breakdown__bar-fill--other     { background: var(--color-text-subtle); }

/* ─── 15. Compare Delta ──────────────────────────────────────────── */
.compare-delta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary-muted);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
}

.compare-delta__icon { font-size: var(--font-size-lg); }
.compare-delta__value { font-variant-numeric: tabular-nums; font-weight: 700; }

.result-disclaimer {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-muted);
  text-align: center;
}
.result-disclaimer time { font-weight: 600; color: var(--color-text); }

/* ─── 15b. Расширенные параметры ──────────────────────────────────── */
.advanced {
  margin-top: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
}

.advanced__summary {
  cursor: pointer;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  list-style: none;
  user-select: none;
}

.advanced__summary::before {
  content: '+';
  display: inline-block;
  margin-right: var(--space-2);
  font-weight: 700;
  color: var(--color-primary);
  transition: transform 0.15s ease;
}

.advanced[open] .advanced__summary::before {
  content: '−';
}

.advanced__summary::-webkit-details-marker { display: none; }

.advanced__body {
  padding: 0 var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.advanced__reset {
  align-self: flex-start;
  font-size: var(--font-size-sm);
}

/* ─── 16. What-if ────────────────────────────────────────────────── */
.whatif {
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.whatif__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.whatif__row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}

.whatif__row:last-child { margin-bottom: 0; }

.whatif__row-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 70px;
}

.whatif__chip {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  background: var(--color-surface);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  min-height: 32px;
  font-family: var(--font-sans);
}

.whatif__chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.whatif__chip--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.whatif__target {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.whatif__target-input {
  width: 56px;
  height: 32px;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-family: var(--font-sans);
}

.whatif__target-input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-muted);
}

.whatif__target-result {
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

/* ─── 17. Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  text-decoration: none;
  min-height: 44px;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  text-decoration: none;
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  text-decoration: none;
}

.btn--tg {
  background: #229ED9;
  color: #fff;
  border-color: #229ED9;
}

.btn--tg:hover { background: #1a85b8; border-color: #1a85b8; color: #fff; text-decoration: none; }

/* ─── 18. Actions Row ────────────────────────────────────────────── */
.actions-row {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

/* ─── 19. Section Heading ────────────────────────────────────────── */
.section-heading {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-5);
  color: var(--color-text);
}

/* ─── 20. FAQ ────────────────────────────────────────────────────── */
.faq-section { margin-bottom: var(--space-10); }

.faq-list { display: flex; flex-direction: column; gap: var(--space-2); }

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface);
}

.faq-item__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-md);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--transition);
}

.faq-item__question::-webkit-details-marker { display: none; }

.faq-item__question::after {
  content: "+";
  font-size: var(--font-size-xl);
  font-weight: 300;
  color: var(--color-text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: var(--space-3);
}

.faq-item[open] .faq-item__question { background: var(--color-primary-light); color: var(--color-primary); }
.faq-item[open] .faq-item__question::after { transform: rotate(45deg); color: var(--color-primary); }

/* faq__item — стиль для статей (wb-vs-ozon, komissii-*) */
.faq__item { border-bottom: 1px solid var(--color-border); }
.faq__item:first-of-type { border-top: 1px solid var(--color-border); }
.faq__item > summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-4) 0; font-weight: 600; cursor: pointer;
  list-style: none; user-select: none; gap: var(--space-4);
  transition: color var(--transition);
}
.faq__item > summary::-webkit-details-marker { display: none; }
.faq__item > summary:hover { color: var(--color-primary); }
.faq__item > summary::after {
  content: '+'; font-size: 1.4rem; font-weight: 300;
  color: var(--color-text-muted); flex-shrink: 0;
  transition: transform var(--transition), color var(--transition);
}
.faq__item[open] > summary { color: var(--color-primary); }
.faq__item[open] > summary::after { transform: rotate(45deg); color: var(--color-primary); }
.faq__item .faq__answer { padding: 0 0 var(--space-4); color: var(--color-text-muted); line-height: 1.7; }

.faq-item__answer {
  padding: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
}

.faq-item__answer p + p { margin-top: var(--space-3); }

/* ─── 21. TG CTA ─────────────────────────────────────────────────── */
.tg-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: linear-gradient(135deg, #EAF5FD 0%, #FFFFFF 100%);
  border: 1px solid #C7E3F5;
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
  flex-wrap: wrap;
}

.tg-cta__info { flex: 1; min-width: 200px; }
.tg-cta__title { font-size: var(--font-size-sm); font-weight: 700; color: var(--color-text); }
.tg-cta__hint  { font-size: var(--font-size-xs); color: var(--color-text-muted); margin-top: 2px; }

/* ─── 22. SEO Content ────────────────────────────────────────────── */
.seo-content {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

.seo-content h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: var(--space-6) 0 var(--space-3);
}

.seo-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  max-width: 72ch;
  margin-bottom: var(--space-3);
}

.seo-content ul, .seo-content ol {
  font-size: var(--font-size-sm);
  padding-left: var(--space-5);
  margin-bottom: var(--space-3);
  max-width: 72ch;
}

.seo-content li { margin-bottom: var(--space-1); }

/* ─── 23. Tariff Table ───────────────────────────────────────────── */
/* Таблица комиссий */
.tariff-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  margin: var(--space-4) 0;
  background: var(--color-surface);
}

.tariff-table th,
.tariff-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.tariff-table th {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background: var(--color-bg-secondary);
}

.tariff-table td { font-variant-numeric: tabular-nums; }
.tariff-table tr:hover { background: var(--color-primary-light); }

/* ─── 24. Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, #F1F5F5 100%);
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 0 var(--space-4);
  margin-top: auto;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--color-primary) 0%,
    var(--color-wb) 50%,
    var(--color-ozon) 100%);
  opacity: 0.85;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  align-items: center;
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links a:hover { color: var(--color-primary); text-decoration: underline; }

.footer-meta { display: flex; flex-direction: column; gap: var(--space-1); }
.footer-meta a { font-size: var(--font-size-sm); color: var(--color-text-muted); }
.footer-meta__copy { font-size: var(--font-size-xs); color: var(--color-text-subtle); }

/* ─── 25. Cookie Banner ──────────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  max-width: 500px;
  background: var(--color-text);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  gap: var(--space-3);
  align-items: center;
  box-shadow: var(--shadow-md);
  z-index: 100;
}

@media (min-width: 768px) {
  .cookie-banner { left: auto; right: var(--space-6); bottom: var(--space-6); }
}

.cookie-banner__text { font-size: var(--font-size-sm); flex: 1; }
.cookie-banner__text a { color: #93c5fd; }

/* ─── 26. Toast ──────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  box-shadow: var(--shadow-md);
  z-index: 200;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms ease;
}

.toast.toast--visible { opacity: 1; }

/* ─── 27. Utility ────────────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

[hidden] { display: none !important; }
[x-cloak] { display: none !important; }

/* ─── 28. /tarify/ — снапшот тарифов ──────────────────────────────── */
.tarify-intro {
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}
.tarify-intro__disclaimer {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}
.tarify-intro code {
  background: var(--color-surface);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.85em;
}

.tarify-block {
  margin-bottom: var(--space-7);
}

.tarify-brand {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  color: #fff;
  margin-right: var(--space-1);
}
.tarify-brand--wb   { background: var(--color-wb); }
.tarify-brand--ozon { background: var(--color-ozon); }

.tarify-notes {
  list-style: disc;
  padding-left: var(--space-5);
  margin: 0 0 var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}
.tarify-notes li { margin-bottom: var(--space-1); }

.tarify-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--space-3);
}

.tariff-table__note {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.tariff-table__delta--up {
  color: var(--color-margin-red);
  font-weight: 600;
}

.tarify-sources {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
.tarify-sources summary {
  cursor: pointer;
  padding: var(--space-2) 0;
  font-weight: 600;
  color: var(--color-primary);
}
.tarify-sources ul {
  padding-left: var(--space-5);
  margin: var(--space-2) 0;
}
.tarify-sources a {
  word-break: break-all;
  font-size: var(--font-size-xs);
}

/* ─── 27. Hero header (homepage) ─────────────────────────────────── */
.site-header--hero {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--color-primary-light) 100%);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) 0 var(--space-8);
}
.site-header--hero .site-header__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.site-header--hero .hero-block + .hero-widget {
  /* reset for flow below */
}
@media (min-width: 960px) {
  .site-header--hero .site-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    grid-template-areas:
      "brand  brand"
      "hero   widget";
    gap: var(--space-6) var(--space-7);
    align-items: end;
  }
  .site-header--hero .site-header__brand { grid-area: brand; }
  .site-header--hero .hero-block         { grid-area: hero; }
  .site-header--hero .hero-widget        { grid-area: widget; }
}
.site-header--hero .site-header__brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.site-header--hero .site-header__logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
}
.hero-block { max-width: 680px; }
.hero-block__title {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.hero-block__title .hero-accent--wb   { color: var(--color-wb); }
.hero-block__title .hero-accent--ozon { color: var(--color-ozon); }
.hero-block__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 560px;
}
.hero-trust {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-4);
  padding: 0;
}
.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}
.hero-trust li::before {
  content: "";
  width: 18px; height: 18px;
  flex-shrink: 0;
  background: var(--color-primary);
  mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/contain no-repeat;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/contain no-repeat;
}

/* ─── 27b. Hero widget (presets + rates) ─────────────────────────── */
.hero-widget {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  overflow: hidden;
}
.hero-widget::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-wb) 50%, var(--color-ozon) 100%);
}
.hero-widget__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.hero-widget__title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.hero-widget__spark {
  color: #F59E0B;
  font-size: 1em;
}
.hero-widget__hint {
  font-size: 12px;
  color: var(--color-text-muted);
}
.hero-widget__presets {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.preset-card {
  appearance: none;
  background: #FAFBFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  text-align: left;
  transition: transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
  font-family: inherit;
  color: inherit;
  width: 100%;
}
.preset-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent);
}
.preset-card:hover .preset-card__arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}
.preset-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.preset-card:active {
  transform: translateY(0);
}
.preset-card__emoji {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
}
.preset-card__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.preset-card__name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}
.preset-card__price {
  font-size: 12px;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}
.preset-card__arrow {
  font-size: 18px;
  color: var(--color-text-muted);
  transition: transform .15s ease, color .15s ease;
  flex-shrink: 0;
}
.hero-widget__footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}
.hero-widget__date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}
.hero-widget__divider {
  color: var(--color-border);
}
.hero-widget__rates {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.hero-widget__rate {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.hero-widget__rate-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 11px;
}
.hero-widget__rate-val {
  font-weight: 600;
  color: var(--color-text);
}
.hero-widget__rate-source {
  font-size: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.preset-card--loading {
  opacity: 0.6;
  pointer-events: none;
}

@media (max-width: 600px) {
  .hero-widget__rates {
    margin-left: 0;
    width: 100%;
    justify-content: flex-start;
  }
}

/* ─── 28. Content header (about/privacy/terms/contact) ───────────── */
.site-header--content {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}
.site-header--content .site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.site-header__right {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
}
.site-header__logo:hover { color: var(--color-primary); text-decoration: none; }
.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}
.site-header__logo-text {
  font-size: var(--font-size-md);
  letter-spacing: -0.01em;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb [aria-current="page"] { color: var(--color-text); font-weight: 600; }

/* Lang switch (RU/EN toggle) */
.lang-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  flex-shrink: 0;
}
.lang-switch__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: calc(var(--radius) - 2px);
  transition: all var(--transition);
}
.lang-switch__btn:hover { color: var(--color-text); background: var(--color-surface); text-decoration: none; }
.lang-switch__btn--active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  pointer-events: none;
}

/* ─── 29. Tooltip (hover + focus, CSS-only) ──────────────────────── */
.tooltip-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.tooltip-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 600;
  font-style: normal;
  cursor: help;
  user-select: none;
  transition: all var(--transition);
}
.tooltip-wrap:hover .tooltip-trigger,
.tooltip-trigger:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
  outline: none;
}
.tooltip-wrap::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 200px;
  max-width: 280px;
  padding: var(--space-2) var(--space-3);
  background: var(--color-text);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: 400;
  line-height: 1.4;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 20;
  white-space: normal;
  text-align: left;
}
.tooltip-wrap:hover::after,
.tooltip-wrap:focus-within::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
@media (max-width: 540px) {
  .tooltip-wrap::after {
    left: auto;
    right: 0;
    transform: translateY(4px);
    min-width: 180px;
    max-width: calc(100vw - var(--space-8));
  }
  .tooltip-wrap:hover::after,
  .tooltip-wrap:focus-within::after {
    transform: translateY(0);
  }
}

/* ─── 30a. Article Header (статьи /articles/) ───────────────────── */
.article-header {
  color: #fff;
  padding: var(--space-10) 0 var(--space-8);
}
.article-header .container { max-width: 900px; }

/* Breadcrumb в article-header */
.article-header .breadcrumb {
  margin-bottom: var(--space-3);
  opacity: 0.8;
}
.article-header .breadcrumb,
.article-header .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
}
.article-header .breadcrumb a:hover { color: #fff; text-decoration: underline; }
.article-header .breadcrumb [aria-current="page"] {
  color: #fff;
  font-weight: 500;
  opacity: 1;
}
.article-header .breadcrumb__sep {
  margin: 0 0.35em;
  opacity: 0.6;
  font-style: normal;
}

.article-header__title {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 var(--space-3);
}

.article-header__subtitle {
  font-size: 1.05rem;
  opacity: 0.88;
  max-width: 680px;
  margin: 0 0 var(--space-5);
  line-height: 1.6;
}

.article-header__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* ─── 30b. Breadcrumb-nav на светлых страницах ───────────────────── */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb-nav a { color: var(--color-text-muted); }
.breadcrumb-nav a:hover { color: var(--color-primary); }
.breadcrumb-nav [aria-current="page"] { color: var(--color-text); font-weight: 600; }
.breadcrumb-nav__sep { margin: 0 0.4em; opacity: 0.5; }

/* ─── 30c. Abbr Tooltip (inline термины в тексте статей) ─────────── */
.abbr-tip {
  position: relative;
  display: inline;
  border-bottom: 1px dashed var(--color-text-muted);
  cursor: help;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
}
.abbr-tip::after {
  content: attr(data-tip);
  position: absolute;
  /* По умолчанию: слева от начала слова, чуть выше */
  bottom: calc(100% + 8px);
  left: 0;
  transform: translateY(4px);
  width: 260px;
  max-width: min(260px, calc(100vw - 2rem));
  padding: var(--space-2) var(--space-3);
  background: var(--color-text);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: 400;
  line-height: 1.5;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
  z-index: 50;
  white-space: normal;
  text-align: left;
  word-break: break-word;
}
.abbr-tip:hover::after,
.abbr-tip:focus::after {
  opacity: 1;
  transform: translateY(0);
}
/* Если аббревиатура у правого края — смещаем tooltip вправо */
.abbr-tip--right::after {
  left: auto;
  right: 0;
}

/* ─── 30d. Th-abbr (tooltips в заголовках таблиц) ───────────────── */
.th-abbr {
  position: relative;
  display: inline-block;
  border-bottom: 1px dashed var(--color-text-muted);
  cursor: help;
  white-space: nowrap;
}
.th-abbr::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  width: 240px;
  max-width: min(240px, calc(100vw - 2rem));
  padding: var(--space-2) var(--space-3);
  background: var(--color-text);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: 400;
  line-height: 1.5;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
  z-index: 50;
  white-space: normal;
  text-align: left;
  word-break: break-word;
}
.th-abbr:hover::after,
.th-abbr:focus::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── 30e. Article body (контент статей) ─────────────────────────── */
.article-body {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-8) var(--container-px) var(--space-12);
}
.article-body h2 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: var(--space-8) 0 var(--space-4);
  color: var(--color-text);
}
.article-body h2:first-child { margin-top: 0; }
.article-body p { margin-bottom: var(--space-4); line-height: 1.7; }
.article-body ul, .article-body ol {
  padding-left: var(--space-5);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}
.article-body li { margin-bottom: var(--space-1); }

/* Answer block (ключевой ответ вверху статьи) */
.answer-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  padding-left: calc(var(--space-5) + 4px); /* компенсирует border-left 4px — текст не прилипает к полосе */
  box-shadow: var(--shadow-sm);
}

/* Related links grid */
.related-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.related-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.related-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  text-decoration: none;
  color: inherit;
}
.related-card__title { font-weight: 600; margin-bottom: var(--space-1); }
.related-card__desc { font-size: var(--font-size-sm); color: var(--color-text-muted); }

/* ─── 30. Action bar (share + print) ─────────────────────────────── */
.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.action-bar__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
}
.action-bar__btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.action-bar__btn svg { flex-shrink: 0; }
.action-bar__btn--tg:hover   { border-color: #26A5E4; color: #26A5E4; background: #E9F5FD; }
.action-bar__btn--vk:hover   { border-color: #0077FF; color: #0077FF; background: #E5F0FF; }
.action-bar__btn--print:hover{ border-color: var(--color-text); color: var(--color-text); background: var(--color-bg-secondary); }

/* ─── 31. Content pages (about/privacy/terms/contact) ────────────── */
.content-hero {
  position: relative;
  padding: var(--space-8) 0 var(--space-7);
  background:
    linear-gradient(180deg, var(--color-primary-light) 0%, transparent 100%),
    var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}
.content-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-wb) 50%, var(--color-ozon) 100%);
  opacity: 0.9;
}
.content-hero__inner { max-width: 820px; }
.content-hero h1 {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-3);
  color: var(--color-text);
}
.content-hero__lead {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: 1.55;
  max-width: 680px;
  margin: 0;
}

.content-page { max-width: 820px; padding-top: var(--space-6); padding-bottom: var(--space-6); }
.content-stack { display: flex; flex-direction: column; gap: var(--space-5); }

.content-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-sm);
}
@media (max-width: 640px) {
  .content-card { padding: var(--space-4); }
}
.content-card h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-3);
  color: var(--color-text);
}
.content-card p { margin: 0 0 var(--space-3); line-height: 1.6; }
.content-card p:last-child { margin-bottom: 0; }
.content-card ul { margin: 0 0 var(--space-3); padding: 0; }
.content-card ul:last-child { margin-bottom: 0; }
.content-card__note {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.content-card--accent {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-surface) 60%);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-accent);
}
.content-card__badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  margin-bottom: var(--space-3);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  list-style: none;
  padding: 0 !important;
}
@media (min-width: 640px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3) var(--space-4); }
}
.feature-grid li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-secondary);
  border-radius: var(--radius);
  line-height: 1.5;
  font-size: var(--font-size-sm);
}
.feature-grid__icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.check-list, .term-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.check-list li {
  position: relative;
  padding-left: 1.75rem;
  line-height: 1.55;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.4em;
  width: 1.1rem; height: 1.1rem;
  background: var(--color-primary);
  border-radius: 50%;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='white' d='M6.4 10.4 3.6 7.6l-1 1L6.4 12.4 14 4.8l-1-1z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='white' d='M6.4 10.4 3.6 7.6l-1 1L6.4 12.4 14 4.8l-1-1z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.term-list li {
  position: relative;
  padding-left: 1.25rem;
  line-height: 1.55;
}
.term-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.content-card p code,
.content-card li code,
.rates-table code {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.875em;
  padding: 2px 6px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  word-break: break-word;
}

.code-block {
  margin: 0 0 var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}
.code-block code { background: none; border: none; padding: 0; font-size: inherit; }

.rates-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  margin: 0 0 var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.rates-table th,
.rates-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.5;
  vertical-align: top;
}
.rates-table tbody tr:last-child td { border-bottom: none; }
.rates-table th {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-subtle);
  background: var(--color-bg-secondary);
}
.rates-table tbody tr:nth-child(even) td { background: var(--color-bg-secondary); }
.rates-table td:first-child {
  font-weight: 600;
  white-space: nowrap;
  color: var(--color-text);
}

.content-card--contact { text-align: left; }
.content-card__email {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-light);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.content-card__email:hover {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.back-link {
  margin-top: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.back-link a { font-weight: 600; }

/* ─── 32. Contact grid ───────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}
@media (min-width: 600px) {
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: repeat(3, 1fr); }
}
.contact-card {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}
.contact-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  text-decoration: none;
  color: inherit;
  transform: translateY(-1px);
}
.contact-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius);
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.contact-card__icon--tg { background: #E9F5FD; color: #26A5E4; }
.contact-card__icon--vk { background: #E5F0FF; color: #0077FF; }
.contact-card__body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.contact-card__label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}
.contact-card__value {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-text);
  word-break: break-word;
}
.contact-card__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}
.contact-topics { margin-top: var(--space-8); }
.contact-topics h2 { margin-bottom: var(--space-3); }
.contact-topics ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.contact-topics li {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* ─── 33. Footer (компактный: 2 строки) ──────────────────────────── */
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-5);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  padding-bottom: var(--space-3);
}
.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}
.site-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 800;
  font-size: var(--font-size-sm);
  letter-spacing: -0.01em;
}
.site-footer__logo:hover { color: var(--color-primary); text-decoration: none; }
.site-footer__slogan { display: none; }

.site-footer__nav {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-3);
  flex: 1 1 auto;
}
.site-footer__nav a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s ease;
}
.site-footer__nav a:hover { color: var(--color-primary); }
.site-footer__nav a + a::before {
  content: "·";
  margin-right: var(--space-3);
  color: var(--color-border);
}

.site-footer__social { flex-shrink: 0; }
.site-footer__social-links {
  display: inline-flex;
  gap: var(--space-1);
}
.site-footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: var(--radius-sm, 6px);
  background: transparent;
  color: var(--color-text-subtle);
  transition: all var(--transition);
}
.site-footer__social-link:hover {
  color: var(--color-primary);
  background: var(--color-surface);
}
.site-footer__social-link svg { width: 16px; height: 16px; }
.site-footer__social-link--tg:hover { color: #26A5E4; }
.site-footer__social-link--vk:hover { color: #0077FF; }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-1) var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  color: var(--color-text-subtle);
  line-height: 1.5;
}
.site-footer__copy { font-weight: 500; color: var(--color-text-muted); flex-shrink: 0; }
.site-footer__disclaimer { flex: 1 1 320px; text-align: right; }

@media (max-width: 640px) {
  .site-footer__disclaimer { text-align: left; }
}

/* ─── 34. Print (PDF export via window.print) ────────────────────── */
@media print {
  :root { --color-bg: #fff; --color-bg-secondary: #fff; }
  body { background: #fff; font-size: 10.5pt; color: #000; }
  .no-print,
  .site-header,
  .site-footer,
  .cookie-banner,
  .toast,
  .tg-cta,
  .faq-block,
  .action-bar,
  form .calc-form,
  .intro-block,
  .tariff-badge,
  .breadcrumb,
  details,
  .site-header--hero,
  .site-header--content { display: none !important; }
  .site-main { padding: 0 !important; }
  .container { max-width: 100% !important; padding: 0 !important; }
  main, .compare-grid, .compare-card, .compare-delta, .result-card {
    box-shadow: none !important;
    border-color: #999 !important;
    page-break-inside: avoid;
  }
  h1, h2, h3 { page-break-after: avoid; }
  a { color: #000 !important; text-decoration: underline; }
  .print-only { display: block !important; }
}
.print-only { display: none; }


/* ══════════════════════════════════════════════════════════════════════════
   Contact Form — форма обратной связи на /contact/
   ══════════════════════════════════════════════════════════════════════════ */
.contact-intro {
  font-size: var(--font-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}
.contact-intro strong { color: var(--color-text); font-weight: 600; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.contact-form__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.contact-form__label {
  font-weight: 600;
  font-size: var(--font-sm);
  color: var(--color-text);
}
.contact-form__hint {
  font-size: var(--font-xs);
  color: var(--color-text-dim);
  font-weight: 400;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
  font-size: var(--font-base);
  background: var(--color-bg, #fff);
  color: var(--color-text);
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.contact-form textarea {
  resize: vertical;
  min-height: 140px;
  font-family: var(--font);
}
.contact-form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.contact-form__captcha {
  display: flex;
  justify-content: center;
}
.contact-form__submit {
  align-self: flex-start;
  min-width: 200px;
}
.contact-form__status {
  min-height: 1.5em;
  font-size: var(--font-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
}
.contact-form__status.is-error {
  color: var(--color-danger, #ef4444);
}
.contact-form__status.is-success {
  color: var(--color-success, #10b981);
  padding: var(--space-3) var(--space-4);
  background: var(--color-success-light, #ecfdf5);
  border-radius: var(--radius);
  font-weight: 500;
}

.contact-socials {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-8);
}
@media (min-width: 560px) {
  .contact-socials { grid-template-columns: 1fr 1fr; }
}
.contact-social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface, #f8fafc);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.contact-social,
.contact-social:hover,
.contact-social:focus,
.contact-social *,
.contact-social:hover * { text-decoration: none !important; }
.contact-social:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
.contact-social__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-social__icon--tg { background: #e8f4fd; color: #2AABEE; }
.contact-social__icon--vk { background: #e8efff; color: #0077FF; }
.contact-social__title {
  font-weight: 600;
  margin: 0 0 2px;
  font-size: var(--font-base);
}
.contact-social__handle {
  margin: 0;
  font-size: var(--font-sm);
  color: var(--color-text-muted);
}

/* Footer CTA — «Напишите нам» */
.site-footer__cta {
  background: var(--color-primary-light, rgba(99, 102, 241, 0.08));
  color: var(--color-text);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
  font-size: var(--font-sm);
  text-align: center;
  line-height: 1.5;
}
.site-footer__cta a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}
.site-footer__cta a:hover { text-decoration: underline; }


/* ═══════════════════════════════════════════════════════════════
   CONTENT HUB — тематическая навигация по статьям и разделам
   ═══════════════════════════════════════════════════════════════ */
.content-hub {
  padding: var(--space-10) 0;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}
.content-hub__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.content-hub__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}
.content-hub__eyebrow {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.content-hub__group { margin-bottom: var(--space-8); }
.content-hub__group:last-child { margin-bottom: 0; }
.content-hub__group-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.content-hub__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-3);
}
.content-hub__card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.content-hub__card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}
.content-hub__card-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.content-hub__card-icon svg { display: block; }
.content-hub__card-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.content-hub__card-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text);
}
.content-hub__card:hover .content-hub__card-name { color: var(--color-primary); }
.content-hub__card-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.45;
}
.breadcrumb__item--group { color: var(--color-text-dim); }
@media (max-width: 639px) {
  .content-hub__grid { grid-template-columns: 1fr; }
  .content-hub__header { flex-direction: column; gap: var(--space-2); }
}

/* ── Кнопка «Наверх» ───────────────────────────────────────────── */
.scroll-to-top {
  position: fixed; bottom: 1.5rem; right: 1.25rem; z-index: 500;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--color-primary); color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0; pointer-events: none; transform: translateY(8px);
  transition: opacity 250ms ease, transform 250ms ease;
}
.scroll-to-top--visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.scroll-to-top:hover { background: var(--color-primary-hover); }
.scroll-to-top:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
  .scroll-to-top { transition: opacity 0.01ms; transform: none !important; }
}
/* ─── Bottom Nav (mobile only, brand-tinted) ──────────────────────────────────
   Цвет берётся из --bnav-color (fallback --color-primary, затем --primary).
   Каждый инструмент окрашивает меню в свой brand-токен.
   ──────────────────────────────────────────────────────────────────────────── */

.bnav { display: none; }

@media (max-width: 767px) {
  .bnav {
    --bnav-color: var(--color-primary, var(--primary, #1F5FFF));
    --bnav-ink: #0f172a;
    --bnav-bg: color-mix(in srgb, var(--bnav-color) 6%, #ffffff 94%);
    --bnav-border: color-mix(in srgb, var(--bnav-color) 22%, transparent);
    --bnav-shadow: color-mix(in srgb, var(--bnav-color) 28%, transparent);
    --bnav-muted: color-mix(in srgb, var(--bnav-ink) 62%, transparent);
    --bnav-active-bg: color-mix(in srgb, var(--bnav-color) 12%, transparent);

    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
    background: var(--bnav-bg);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
            backdrop-filter: saturate(180%) blur(16px);
    border-top: 1px solid var(--bnav-border);
    box-shadow: 0 -8px 24px -12px var(--bnav-shadow);
    transform: translateY(110%);
    transition: transform .28s cubic-bezier(.32, .72, .24, 1);
    will-change: transform;
  }

  /* Тонкая цветная линия-акцент сверху */
  .bnav::before {
    content: "";
    position: absolute;
    top: 0;
    left: 12%;
    right: 12%;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg,
      transparent,
      var(--bnav-color) 30%,
      var(--bnav-color) 70%,
      transparent);
    opacity: .55;
  }

  .bnav[data-state="visible"] { transform: translateY(0); }

  @media (prefers-color-scheme: dark) {
    .bnav {
      --bnav-ink: #e6edf3;
      --bnav-bg: color-mix(in srgb, var(--bnav-color) 10%, #11151c 90%);
      --bnav-border: color-mix(in srgb, var(--bnav-color) 32%, transparent);
      --bnav-shadow: rgba(0, 0, 0, .45);
      --bnav-muted: color-mix(in srgb, var(--bnav-ink) 60%, transparent);
      --bnav-active-bg: color-mix(in srgb, var(--bnav-color) 22%, transparent);
    }
  }

  /* Fallback без backdrop-filter: плотный тонированный фон */
  @supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
    .bnav {
      background: color-mix(in srgb, var(--bnav-color) 8%, #ffffff 92%);
    }
    @media (prefers-color-scheme: dark) {
      .bnav {
        background: color-mix(in srgb, var(--bnav-color) 14%, #11151c 86%);
      }
    }
  }

  .bnav__link {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 6px 2px;
    min-height: 52px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--bnav-muted);
    transition: color .15s ease, background-color .2s ease, transform .15s ease;
  }

  .bnav__link:hover { color: var(--bnav-ink); }
  .bnav__link:active { transform: scale(.96); }
  .bnav__link:focus-visible {
    outline: 2px solid var(--bnav-color);
    outline-offset: -2px;
  }

  .bnav__link[aria-current="page"] {
    color: var(--bnav-color);
    background: var(--bnav-active-bg);
    font-weight: 600;
  }
  .bnav__link[aria-current="page"] .bnav__icon {
    transform: translateY(-1px);
  }

  .bnav__icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    transition: transform .2s ease;
  }

  .bnav__label {
    font-size: 11px;
    line-height: 1.1;
    font-weight: 500;
    letter-spacing: -0.01em;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  @media (max-width: 380px) {
    .bnav__label { font-size: 10px; }
    .bnav__link { gap: 2px; padding: 6px 1px; }
  }

  /* Защита от перекрытия контента нижним меню */
  body { padding-bottom: calc(60px + env(safe-area-inset-bottom)); }

  /* Кнопка «Наверх» поднимается над меню */
  .scroll-to-top {
    bottom: calc(72px + env(safe-area-inset-bottom)) !important;
  }

  @media (prefers-reduced-motion: reduce) {
    .bnav { transition: none; }
    .bnav__link, .bnav__icon { transition: none; }
  }
}

#faq { scroll-margin-top: 80px; }