/* ==========================================================================
   CALCULATOR HERO
   ========================================================================== */

.calc-hero {
  min-height: 260px;
  /* Промежуточная переменная: мобильный media query подставляет -sm вариант. */
  --roof-calc-bg-resolved: var(--roof-calc-bg);
  background:
    linear-gradient(rgba(2, 6, 23, 0.65), rgba(2, 6, 23, 0.72)),
    var(--roof-calc-bg-resolved) center / cover no-repeat;
  color: #fff;
  display: flex;
  align-items: center;
}

@media (max-width: 768px) {
  .calc-hero {
    --roof-calc-bg-resolved: var(--roof-calc-bg-sm, var(--roof-calc-bg));
  }
}

.calc-hero__inner {
  padding: 48px 0;
}

.calc-hero .roof-section__title {
  margin-top: 8px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.calc-hero .roof-section__text {
  color: #cbd5e1;
  margin-top: 10px;
  font-size: 1rem;
  max-width: 560px;
}

.calc-back {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--accent-warm);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}

.calc-back:hover { color: #fff; }

/* ==========================================================================
   SHELL & LAYOUT
   ========================================================================== */

.calc-shell {
  padding: 48px 0 80px;
  background: #f1f5f9;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  align-items: start;
}

.calc-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-sidebar {
  position: sticky;
  /* Нижняя кромка фиксированной шапки (--header-height из site.css). */
  top: var(--header-height, 102px);
}

/* ==========================================================================
   CARD
   ========================================================================== */

.calc-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid #e2e8f0;
  padding: 24px;
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
}

.calc-card__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}

.calc-badge {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.calc-card__title {
  font-size: 1.1rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.2;
}

.calc-card__sub {
  margin-top: 4px;
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.5;
}

.calc-diagram {
  margin-bottom: 20px;
  border-radius: 14px;
  background: #f1f5f9;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  height: 300px;
}

.calc-diagram img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  box-sizing: border-box;
}

/* ==========================================================================
   FIELDS
   ========================================================================== */

.calc-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-field__label {
  font-size: 0.83rem;
  font-weight: 600;
  color: #374151;
}

.calc-field__row {
  display: flex;
  align-items: stretch;
  border: 1.5px solid #dbe4ee;
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.calc-field__row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.calc-input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  padding: 11px 12px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: #0f172a;
  background: transparent;
}

/* убираем стрелки у числовых полей */
.calc-input::-webkit-inner-spin-button,
.calc-input::-webkit-outer-spin-button { -webkit-appearance: none; }
.calc-input[type="number"] { -moz-appearance: textfield; }

.calc-field__unit {
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #94a3b8;
  background: #f8fafc;
  border-left: 1.5px solid #e2e8f0;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ==========================================================================
   MATERIALS
   ========================================================================== */

.calc-materials {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-mat-group__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #94a3b8;
  margin-bottom: 10px;
}

.calc-mat-row,
.roof-calculator-material-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  border: 1.5px solid #e2e8f0;
  background: #f8fafc;
  font: inherit;
  text-align: left;
  cursor: pointer;
  color: inherit;
  appearance: none;
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
  margin-bottom: 8px;
}

.calc-mat-row:last-child,
.roof-calculator-material-row:last-child { margin-bottom: 0; }

.calc-mat-row:hover,
.roof-calculator-material-row:hover {
  border-color: var(--accent-ring-strong);
  background: #fff;
}

.calc-mat-row.is-active,
.roof-calculator-material-row.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 2px 12px var(--accent-veil-soft);
}

.calc-mat-row__name {
  font-size: 0.92rem;
  font-weight: 700;
  color: #0f172a;
}

.calc-mat-row__meta {
  margin-top: 3px;
  font-size: 0.8rem;
  color: #64748b;
}

.calc-mat-row__specs {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  font-size: 0.78rem;
  color: #64748b;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ==========================================================================
   RESULT CARD
   ========================================================================== */

.calc-result {
  background: #fff;
  border-radius: 20px;
  border: 1px solid #e2e8f0;
  padding: 24px;
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
}

.calc-result__label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #94a3b8;
}

.calc-result__title {
  margin-top: 6px;
  font-size: 1.4rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.15;
}

.calc-result__rows {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calc-result__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  font-size: 0.88rem;
  color: #64748b;
}

.calc-result__row strong {
  color: #0f172a;
  font-weight: 700;
  text-align: right;
  font-size: 0.88rem;
}

.calc-result__row--accent {
  background: var(--accent-soft);
  border-color: var(--accent-ring);
}

.calc-result__row--accent strong {
  color: var(--accent-ink);
  font-size: 1rem;
}

.calc-result__cta {
  display: block;
  width: 100%;
  margin-top: 18px;
  padding: 13px 20px;
  border-radius: 999px;
  text-align: center;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  box-sizing: border-box;
}

.calc-result__note {
  margin-top: 10px;
  font-size: 0.78rem;
  color: #94a3b8;
  line-height: 1.6;
}

/* ==========================================================================
   BREAKDOWN
   ========================================================================== */

.calc-breakdown {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.calc-breakdown__sec { }

.calc-breakdown__title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #94a3b8;
  margin-bottom: 8px;
}

/* JS-generated breakdown items */
.roof-calculator-breakdown__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.roof-calculator-breakdown__item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.85rem;
  color: #475569;
}

.roof-calculator-breakdown__item:last-child { border-bottom: 0; }

.roof-calculator-breakdown__item strong {
  color: #0f172a;
  font-weight: 600;
}

.roof-calculator-breakdown__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.roof-calculator-breakdown__table th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  font-weight: 700;
  padding: 0 0 7px;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
}

.roof-calculator-breakdown__table th:last-child { text-align: right; }

.roof-calculator-breakdown__table td {
  padding: 7px 0;
  border-bottom: 1px solid #f1f5f9;
  color: #374151;
}

.roof-calculator-breakdown__table td:last-child { text-align: right; }

.roof-calculator-breakdown__table tr:last-child td { border-bottom: 0; }

.roof-calculator-breakdown__empty,
.roof-calculator-breakdown__empty-cell {
  color: #94a3b8;
  font-size: 0.82rem;
  font-style: italic;
  padding: 4px 0;
}

/* ==========================================================================
   INDEX PAGE
   ========================================================================== */

.roof-calculator-hero {
  min-height: 260px;
  --roof-calc-bg-resolved: var(--roof-calc-bg);
  background:
    linear-gradient(rgba(2, 6, 23, 0.65), rgba(2, 6, 23, 0.72)),
    var(--roof-calc-bg-resolved) center / cover no-repeat;
  color: #fff;
  display: flex;
  align-items: center;
}

@media (max-width: 768px) {
  .roof-calculator-hero {
    --roof-calc-bg-resolved: var(--roof-calc-bg-sm, var(--roof-calc-bg));
  }
}

.roof-calculator-hero--compact { min-height: 260px; }

.roof-calculator-hero__inner {
  padding: 48px 0;
}

.roof-calculator-hero .roof-section__text { color: #cbd5e1; }

.roof-calculator-back {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--accent-warm);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}

.roof-calculator-back:hover { color: #fff; }

.roof-calculator-shell {
  padding: 48px 0 80px;
  background: #f1f5f9;
}

.roof-calculator-section {
  background: #fff;
  border-radius: 20px;
  border: 1px solid #e2e8f0;
  padding: 28px;
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
  max-width: 1100px;
  margin: 0 auto;
}

.roof-calculator-section__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}

.roof-calculator-step {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.roof-calculator-section__title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
}

.roof-calculator-section__text {
  margin-top: 4px;
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.6;
}

.roof-calculator-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.roof-calculator-type-card {
  border-radius: 16px;
  border: 1.5px solid #e2e8f0;
  background: #fff;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.roof-calculator-type-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-ring-strong);
  box-shadow: 0 10px 28px var(--accent-veil-soft);
}

.roof-calculator-type-card--link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.roof-calculator-type-card--link .roof-calculator-type-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.roof-calculator-type-card__media {
  height: 160px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.roof-calculator-type-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 10px;
  box-sizing: border-box;
}

.roof-calculator-type-card__placeholder {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 1.6rem;
  font-weight: 800;
}

.roof-calculator-type-card__body {
  padding: 18px 20px 20px;
}

.roof-calculator-type-card__title {
  font-size: 1rem;
  font-weight: 800;
  color: #0f172a;
}

.roof-calculator-type-card__text {
  margin-top: 7px;
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.roof-calculator-type-card__cta {
  display: inline-flex;
  align-items: center;
  margin-top: auto;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  transition: background 0.18s, color 0.18s;
}

.roof-calculator-type-card:hover .roof-calculator-type-card__cta {
  background: var(--accent);
  color: #fff;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1060px) {
  .calc-layout {
    grid-template-columns: 1fr 320px;
  }
}

@media (max-width: 860px) {
  .calc-layout {
    grid-template-columns: 1fr;
  }

  .calc-sidebar {
    position: static;
  }

  .roof-calculator-types {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .calc-shell,
  .roof-calculator-shell {
    padding: 32px 0 56px;
  }

  .calc-fields {
    grid-template-columns: 1fr;
  }

  .roof-calculator-types {
    grid-template-columns: 1fr;
  }

  .calc-mat-row,
  .roof-calculator-material-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .calc-mat-row__specs {
    flex-direction: row;
    gap: 10px;
  }
}

/* === Pro calculator: errors, totals, slopes, lead modal === */

.calc-error {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f1f5f9;
  border: 1px solid #94a3b8;
  color: #0f172a;
  font-size: 0.9rem;
}

.calc-error__retry {
  display: inline-block;
  margin-left: 6px;
  padding: 4px 12px;
  border: 1.5px solid currentColor;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

/* Индикатор расчёта: на медленной сети калькулятор выглядел зависшим */
/* display на классе сильнее браузерного [hidden] — без этой строки спиннер виден всегда */
.calc-result__loading[hidden] { display: none; }

.calc-result__loading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
  font-size: 0.9rem;
  color: var(--muted, #64748b);
}

.calc-spinner {
  width: 18px;
  height: 18px;
  flex: none;
  border: 2.5px solid rgba(0, 0, 0, 0.15);
  border-top-color: var(--text, #111);
  border-radius: 50%;
  animation: calc-spin 0.8s linear infinite;
}

@keyframes calc-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .calc-spinner { animation-duration: 2.4s; }
}

.calc-success {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  color: #0f172a;
  font-size: 0.95rem;
}

.calc-result__row--total {
  border-top: 1.5px solid #e2e8f0;
  padding-top: 10px;
  font-size: 1.05rem;
}

.calc-result__row--total strong {
  color: var(--accent, #0f172a);
}

.calc-result__cta:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.calc-mat-row__price {
  font-weight: 600;
  color: #0f172a;
}

.calc-slope {
  margin-bottom: 14px;
}

.calc-slope__head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
}

.calc-slope__head span:last-child {
  color: #64748b;
  font-weight: 500;
  white-space: nowrap;
}

/* Lead modal */

.calc-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.calc-modal[hidden] { display: none; }

body.calc-modal-open { overflow: hidden; }

.calc-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
}

.calc-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: #fff;
  border-radius: 16px;
  padding: 26px 24px 24px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
}

.calc-modal__close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: 0;
  background: none;
  font-size: 1.6rem;
  line-height: 1;
  color: #94a3b8;
  cursor: pointer;
}

.calc-modal__close:hover { color: #0f172a; }

.calc-modal__title {
  margin: 0 0 6px;
  font-size: 1.25rem;
  color: #0f172a;
}

.calc-modal__text {
  margin: 0 0 16px;
  font-size: 0.92rem;
  color: #64748b;
}

.calc-modal__dialog .calc-field {
  display: block;
  margin-bottom: 12px;
}

.calc-input--textarea {
  width: 100%;
  resize: vertical;
}

.calc-modal__submit {
  width: 100%;
  margin-top: 6px;
}

/* === Cutting scheme (schema de taiere) === */

.calc-slope__svg {
  display: block;
  width: 100%;
  max-height: 240px;
  margin-bottom: 8px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #fff;
  padding: 6px;
  box-sizing: border-box;
}

.calc-svg-waste rect {
  fill: #f1f5f9;
  stroke: #cbd5e1;
  stroke-width: 0.02;
  stroke-dasharray: 0.08 0.06;
}

.calc-svg-sheet rect {
  fill: #e2e8f0;
  stroke: #60a5fa;
  stroke-width: 0.025;
}

.calc-svg-outline {
  fill: none;
  stroke: #0f172a;
  stroke-width: 0.05;
  stroke-linejoin: round;
}

.calc-svg-labels text {
  fill: #1e40af;
  font-family: inherit;
  font-weight: 600;
  text-anchor: middle;
  dominant-baseline: middle;
}

.calc-slope-legend {
  display: flex;
  gap: 16px;
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: #64748b;
}

.calc-slope-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.calc-slope-legend__dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}

.calc-slope-legend__dot--sheet {
  background: #e2e8f0;
  border: 1px solid #60a5fa;
}

.calc-slope-legend__dot--waste {
  background: #f1f5f9;
  border: 1px dashed #cbd5e1;
}

/* === Full-width cutting section === */

.calc-cutting {
  margin-top: 28px;
}

.calc-cutting__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
  align-items: start;
}

.calc-cutting__grid > .roof-calculator-breakdown__empty,
.calc-cutting__grid > .calc-slope-legend {
  grid-column: 1 / -1;
}

.calc-cutting__grid .calc-slope-legend {
  margin-bottom: 0;
}

.calc-cutting__grid .calc-slope {
  margin-bottom: 0;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 16px;
}

.calc-cutting__grid .calc-slope__head {
  font-size: 0.95rem;
}

.calc-cutting__grid .calc-slope__svg {
  max-height: 480px;
  background: #fff;
}

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

.calc-saved-note {
  grid-column: 1 / -1;
  margin: 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  color: #0f172a;
  font-size: 0.88rem;
}