/**
 * ═══════════════════════════════════════════════════════════════
 *  SERVICE-CALC.CSS  —  Стили универсального движка калькулятора
 *  Город мастеров, Астана
 *  Используется на: electro, plumbing, bamboo-panels, windows,
 *                   humidity, capital-build, wood-build и др.
 * ═══════════════════════════════════════════════════════════════
 */

/* ─────────────────────────────────────────────────────────────
   CSS переменные (наследуют от основного styles.css)
───────────────────────────────────────────────────────────── */
:root {
  --sc-bg:      #0D0D0D;
  --sc-bg2:     #1A1A1A;
  --sc-card:    #242424;
  --sc-card2:   #2E2E2E;
  --sc-accent:  var(--accent, #8A2BE2);
  --sc-accent2: var(--accent2, #c084fc);
  --sc-text:    #F0F0F0;
  --sc-muted:   #999;
  --sc-border:  #333;
  --sc-green:   #22c55e;
  --sc-yellow:  #eab308;
  --sc-red:     #ef4444;
  --sc-radius:  12px;
}

/* ─────────────────────────────────────────────────────────────
   УТИЛИТЫ
───────────────────────────────────────────────────────────── */
.sc-hidden { display: none !important; }

/* ─────────────────────────────────────────────────────────────
   ЗАГРУЗКА
───────────────────────────────────────────────────────────── */
.sc-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  color: var(--sc-muted);
  gap: 1rem;
}
.sc-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--sc-border);
  border-top-color: var(--sc-accent);
  border-radius: 50%;
  animation: sc-spin 0.8s linear infinite;
}
@keyframes sc-spin { to { transform: rotate(360deg); } }

/* ─────────────────────────────────────────────────────────────
   СТРАНИЦА (обёртка)
───────────────────────────────────────────────────────────── */
.sc-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* ─────────────────────────────────────────────────────────────
   HERO
───────────────────────────────────────────────────────────── */
.sc-hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
  background: linear-gradient(135deg, rgba(138,43,226,.12), rgba(0,0,0,0));
  border-radius: var(--sc-radius);
  border: 1px solid rgba(138,43,226,.2);
}
.sc-hero-icon {
  font-size: 3.5rem;
  line-height: 1;
  margin-bottom: .75rem;
}
.sc-hero-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: .6rem;
  background: linear-gradient(135deg, #fff, var(--sc-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sc-hero-sub {
  color: var(--sc-muted);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.sc-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
}
.sc-badge {
  background: rgba(138,43,226,.15);
  color: var(--sc-accent2);
  border: 1px solid rgba(138,43,226,.3);
  padding: .3rem .85rem;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 500;
}

/* ─────────────────────────────────────────────────────────────
   ФАКТЫ / ПРЕИМУЩЕСТВА
───────────────────────────────────────────────────────────── */
.sc-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.sc-fact {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: border-color .2s;
}
.sc-fact:hover { border-color: var(--sc-accent); }
.sc-fact-icon { font-size: 1.8rem; flex-shrink: 0; }
.sc-fact-title { font-weight: 700; margin-bottom: .3rem; font-size: .95rem; }
.sc-fact-text  { color: var(--sc-muted); font-size: .85rem; line-height: 1.5; }

/* ─────────────────────────────────────────────────────────────
   БЛОК "НА ЧЁМ ОБМАНЫВАЮТ"
───────────────────────────────────────────────────────────── */
.sc-warnings-block {
  background: rgba(239,68,68,.06);
  border: 1px solid rgba(239,68,68,.25);
  border-radius: var(--sc-radius);
  padding: 1.5rem;
}
.sc-warn-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 1rem;
  color: #fca5a5;
}
.sc-warn-item {
  color: var(--sc-muted);
  font-size: .88rem;
  padding: .4rem 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  line-height: 1.5;
}
.sc-warn-item:last-child { border-bottom: none; }

/* ─────────────────────────────────────────────────────────────
   МЕДИА БЛОК
───────────────────────────────────────────────────────────── */
.sc-media-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.sc-media-video {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  overflow: hidden;
}
.sc-video-title {
  padding: .85rem 1.25rem;
  font-weight: 600;
  font-size: .92rem;
  border-bottom: 1px solid var(--sc-border);
}
.sc-video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}
.sc-video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.sc-media-photos {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  overflow: hidden;
}
.sc-photos-title {
  padding: .85rem 1.25rem;
  font-weight: 600;
  font-size: .92rem;
  border-bottom: 1px solid var(--sc-border);
}
.sc-photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 3px;
  padding: .5rem;
}
.sc-photo {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
  transition: transform .2s, opacity .2s;
}
.sc-photo:hover { transform: scale(1.03); opacity: .9; }
.sc-photo-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.sc-photo-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 8px;
  object-fit: contain;
}
.sc-photo-overlay button {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  font-size: 1.5rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.sc-photo-overlay button:hover { background: rgba(255,255,255,.25); }

/* ─────────────────────────────────────────────────────────────
   КАЛЬКУЛЯТОР
───────────────────────────────────────────────────────────── */
.sc-calc-wrapper {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  overflow: hidden;
}
.sc-calc-title {
  padding: 1.25rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  border-bottom: 1px solid var(--sc-border);
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.sc-calc-sub {
  font-size: .82rem;
  font-weight: 400;
  color: var(--sc-muted);
}
.sc-cons-note {
  padding: .6rem 1.5rem;
  font-size: .82rem;
  color: var(--sc-yellow);
  background: rgba(234,179,8,.06);
  border-bottom: 1px solid var(--sc-border);
}
.sc-calc { padding: 1rem 1.5rem; }

/* Строка площади */
.sc-area-row {
  background: rgba(138,43,226,.07);
  border: 1px solid rgba(138,43,226,.2);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.sc-area-block { display: flex; flex-direction: column; gap: .5rem; }
.sc-area-label {
  font-size: .9rem;
  font-weight: 600;
  color: var(--sc-accent2);
  display: flex;
  align-items: center;
  gap: .4rem;
}
.sc-hint-icon {
  cursor: help;
  font-size: .85rem;
  opacity: .7;
}
.sc-area-input-wrap {
  display: flex;
  align-items: center;
  gap: .6rem;
  max-width: 250px;
}
.sc-area-input {
  flex: 1;
  background: var(--sc-bg2);
  border: 1px solid var(--sc-border);
  border-radius: 8px;
  padding: .65rem 1rem;
  color: var(--sc-text);
  font-size: 1.1rem;
  font-weight: 600;
  font-family: inherit;
  outline: none;
  transition: border-color .2s;
  width: 100%;
}
.sc-area-input:focus { border-color: var(--sc-accent); }
.sc-area-unit {
  color: var(--sc-muted);
  font-size: .92rem;
  white-space: nowrap;
}

/* Группы позиций */
.sc-group { margin-bottom: 1.5rem; }
.sc-group-title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--sc-muted);
  padding: .4rem 0;
  border-bottom: 1px solid var(--sc-border);
  margin-bottom: .75rem;
}
.sc-group-items { display: flex; flex-direction: column; gap: .5rem; }

/* Карточка позиции */
.sc-item {
  background: var(--sc-bg2);
  border: 1px solid var(--sc-border);
  border-radius: 10px;
  padding: .85rem 1rem;
  transition: border-color .2s;
}
.sc-item:hover { border-color: rgba(138,43,226,.4); }
.sc-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}
.sc-item-check-wrap {
  display: flex;
  align-items: center;
  gap: .6rem;
  cursor: pointer;
  flex: 1;
  min-width: 0;
}
.sc-item-cb { display: none; }
.sc-item-checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--sc-border);
  border-radius: 5px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  background: var(--sc-card);
}
.sc-item-cb:checked + .sc-item-checkmark {
  background: var(--sc-accent);
  border-color: var(--sc-accent);
}
.sc-item-cb:checked + .sc-item-checkmark::after {
  content: '✓';
  color: #fff;
  font-size: .8rem;
  font-weight: 700;
}
.sc-item-name {
  font-size: .9rem;
  font-weight: 500;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: .35rem;
  flex-wrap: wrap;
}
.sc-cons-badge {
  background: rgba(234,179,8,.2);
  color: var(--sc-yellow);
  border-radius: 6px;
  padding: .05rem .4rem;
  font-size: .72rem;
  font-weight: 600;
  white-space: nowrap;
}
.sc-item-right {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-shrink: 0;
}
.sc-item-price {
  font-size: .85rem;
  color: var(--sc-accent2);
  font-weight: 600;
  white-space: nowrap;
}
.sc-hint-btn {
  cursor: pointer;
  opacity: .6;
  font-size: .9rem;
  transition: opacity .2s;
  user-select: none;
}
.sc-hint-btn:hover { opacity: 1; }

/* Поле количества (для штучных позиций) */
.sc-item-qty-row {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-top: .6rem;
  padding-top: .6rem;
  border-top: 1px solid rgba(255,255,255,.06);
  flex-wrap: wrap;
}
.sc-qty-label { font-size: .82rem; color: var(--sc-muted); }
.sc-qty-input {
  width: 80px;
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: 6px;
  padding: .35rem .6rem;
  color: var(--sc-text);
  font-size: .9rem;
  font-family: inherit;
  outline: none;
}
.sc-qty-input:focus { border-color: var(--sc-accent); }
.sc-qty-unit { font-size: .82rem; color: var(--sc-muted); }

/* Подсказка */
.sc-item-hint {
  margin-top: .6rem;
  padding: .75rem 1rem;
  background: rgba(138,43,226,.07);
  border-left: 3px solid var(--sc-accent);
  border-radius: 0 8px 8px 0;
  font-size: .85rem;
  line-height: 1.6;
}
.sc-hint-desc { color: var(--sc-muted); margin-bottom: .35rem; }
.sc-hint-tip  { color: var(--sc-accent2); }
.sc-hint-warn {
  color: #fca5a5;
  background: rgba(239,68,68,.08);
  border-radius: 6px;
  padding: .4rem .75rem;
  margin-top: .35rem;
}

/* Результат позиции */
.sc-item-result {
  margin-top: .6rem;
  padding: .65rem 1rem;
  background: rgba(34,197,94,.06);
  border: 1px solid rgba(34,197,94,.15);
  border-radius: 8px;
  font-size: .85rem;
}
.sc-item-res-line {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  color: var(--sc-muted);
}
.sc-item-res-total {
  margin-left: auto;
  font-weight: 700;
  color: var(--sc-green);
  font-size: .92rem;
}

/* Расходники в результате */
.sc-cons-list {
  margin-top: .5rem;
  padding-top: .5rem;
  border-top: 1px dashed rgba(255,255,255,.08);
}
.sc-cons-header {
  font-size: .78rem;
  color: var(--sc-yellow);
  font-weight: 600;
  margin-bottom: .4rem;
}
.sc-cons-row {
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-wrap: wrap;
  padding: .25rem 0;
  font-size: .8rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.sc-cons-row:last-of-type { border-bottom: none; }
.sc-cons-name  { flex: 1; min-width: 120px; color: var(--sc-text); }
.sc-cons-qty   { color: var(--sc-muted); white-space: nowrap; }
.sc-cons-price { color: var(--sc-muted); white-space: nowrap; }
.sc-cons-total { margin-left: auto; font-weight: 600; color: var(--sc-yellow); white-space: nowrap; }
.sc-cons-hint  { cursor: help; opacity: .6; }
.sc-cons-subtotal {
  text-align: right;
  font-size: .82rem;
  font-weight: 700;
  color: var(--sc-yellow);
  padding-top: .4rem;
  margin-top: .3rem;
  border-top: 1px solid rgba(234,179,8,.2);
}

/* Итог */
.sc-total-block {
  background: rgba(138,43,226,.1);
  border: 1px solid rgba(138,43,226,.3);
  border-radius: var(--sc-radius);
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
}
.sc-total-row {
  display: flex;
  justify-content: space-between;
  padding: .35rem 0;
  font-size: .9rem;
  color: var(--sc-muted);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.sc-total-cons { color: var(--sc-yellow); }
.sc-total-final {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: .75rem;
  margin-top: .5rem;
  font-size: 1.05rem;
  font-weight: 700;
}
.sc-total-sum {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--sc-accent2);
}
.sc-order-btn {
  width: 100%;
  margin-top: 1rem;
  padding: .9rem;
  background: var(--sc-accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: filter .2s, transform .1s;
}
.sc-order-btn:hover  { filter: brightness(1.15); }
.sc-order-btn:active { transform: scale(.98); }
.sc-total-note {
  text-align: center;
  font-size: .78rem;
  color: var(--sc-muted);
  margin-top: .6rem;
}

/* ─────────────────────────────────────────────────────────────
   ЭТАПЫ РАБОТЫ
───────────────────────────────────────────────────────────── */
.sc-steps-block {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  padding: 1.5rem;
}
.sc-steps-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}
.sc-steps {
  display: flex;
  flex-direction: column;
  gap: .85rem;
}
.sc-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.sc-step-num {
  width: 32px;
  height: 32px;
  background: var(--sc-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .82rem;
  font-weight: 700;
  flex-shrink: 0;
}
.sc-step-title { font-weight: 600; font-size: .9rem; margin-bottom: .2rem; }
.sc-step-text  { font-size: .83rem; color: var(--sc-muted); line-height: 1.5; }

/* ─────────────────────────────────────────────────────────────
   SPEC TABLE (таблица характеристик / размеров)
───────────────────────────────────────────────────────────── */
.sc-spec-block {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  overflow: hidden;
}
.sc-spec-title {
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  border-bottom: 1px solid var(--sc-border);
}
.sc-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.sc-spec-table th {
  background: rgba(255,255,255,.04);
  color: var(--sc-muted);
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .6rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--sc-border);
}
.sc-spec-table td {
  padding: .6rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
  vertical-align: top;
}
.sc-spec-table tr:last-child td { border-bottom: none; }
.sc-spec-table tr:hover td { background: rgba(255,255,255,.02); }
.sc-spec-note {
  padding: .75rem 1rem;
  font-size: .8rem;
  color: var(--sc-yellow);
  border-top: 1px solid var(--sc-border);
  background: rgba(234,179,8,.04);
}

/* ─────────────────────────────────────────────────────────────
   FAQ АККОРДИОН
───────────────────────────────────────────────────────────── */
.sc-faq-block {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius);
  overflow: hidden;
}
.sc-faq-title {
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  border-bottom: 1px solid var(--sc-border);
}
.sc-faq-item { border-bottom: 1px solid rgba(255,255,255,.05); }
.sc-faq-item:last-child { border-bottom: none; }
.sc-faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--sc-text);
  font-family: inherit;
  font-size: .9rem;
  font-weight: 500;
  padding: 1rem 1.5rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .5rem;
  transition: background .2s;
}
.sc-faq-q:hover { background: rgba(255,255,255,.03); }
.sc-faq-arrow {
  color: var(--sc-accent);
  font-size: 1rem;
  transition: transform .25s;
  flex-shrink: 0;
}
.sc-faq-item.open .sc-faq-arrow { transform: rotate(180deg); }
.sc-faq-a {
  display: none;
  padding: 0 1.5rem 1rem;
  font-size: .85rem;
  color: var(--sc-muted);
  line-height: 1.7;
}
.sc-faq-item.open .sc-faq-a { display: block; }

/* ─────────────────────────────────────────────────────────────
   CTA блок
───────────────────────────────────────────────────────────── */
.sc-cta-block {
  background: linear-gradient(135deg, rgba(138,43,226,.2), rgba(0,160,200,.1));
  border: 1px solid rgba(138,43,226,.3);
  border-radius: var(--sc-radius);
  padding: 2.5rem 2rem;
  text-align: center;
}
.sc-cta-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: .6rem;
}
.sc-cta-sub {
  color: var(--sc-muted);
  margin-bottom: 1.5rem;
  font-size: .95rem;
}
.sc-cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: center;
}
.sc-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2rem;
  border-radius: 10px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: inherit;
  text-decoration: none;
  transition: filter .2s, transform .1s;
}
.sc-cta-btn:active { transform: scale(.97); }
.sc-cta-btn-primary { background: var(--sc-accent); color: #fff; }
.sc-cta-btn-primary:hover { filter: brightness(1.15); }
.sc-cta-btn-wa {
  background: #25D366;
  color: #fff;
}
.sc-cta-btn-wa:hover { filter: brightness(1.1); }

/* ─────────────────────────────────────────────────────────────
   АДАПТИВ
───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sc-page { padding: 1rem .75rem 3rem; gap: 1.5rem; }
  .sc-hero  { padding: 2rem .75rem 1.5rem; }
  .sc-hero-title { font-size: 1.5rem; }
  .sc-calc { padding: .75rem; }
  .sc-area-input-wrap { max-width: 100%; }
  .sc-total-block, .sc-calc-title, .sc-steps-block,
  .sc-faq-block, .sc-cta-block, .sc-spec-block { padding: 1rem; }
  .sc-faq-q { padding: .85rem 1rem; }
  .sc-faq-a { padding: 0 1rem .85rem; }
  .sc-item-header { flex-direction: column; align-items: flex-start; }
  .sc-item-right { flex-direction: row; }
  .sc-cta-btn { width: 100%; justify-content: center; }
  .sc-media-block { grid-template-columns: 1fr; }
}