/* ═══════════════════════════════════════════════════════════════
   styles-responsive.css — мобильная и планшетная адаптация
   Брейкпоинты: 1024 (планшет), 768 (крупный телефон), 480 (телефон)
   ═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────
   TABLET — до 1024px
   ───────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .container { padding: 0 32px; }
  .section { padding: 80px 0; }

  /* Header — прячем навигацию и телефон уже на планшете, чтобы кнопка не вылезала */
  .nav-links { display: none; }
  .header-phone { display: none; }
  .header-inner { gap: 0; }
  .header-actions { margin-left: auto; }

  /* Заголовки */
  .section-title { font-size: 44px; }
  .hero h1 { font-size: 58px; }

  /* Hero → одна колонка */
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-side { max-width: 480px; }

  /* Differentiators 4 → 2 */
  .diff-grid { grid-template-columns: 1fr 1fr; }
  .diff-q { min-height: 0; }
  .diff-bottom { flex-direction: column; align-items: flex-start; gap: 20px; }

  /* Production 2 → 1 */
  .prod-grid { grid-template-columns: 1fr; gap: 32px; }

  /* Calculator 2 → 1 */
  .pc-shell { grid-template-columns: 1fr; }
  .pc-result { position: static; min-height: 0; }
  .pc-radio-cards { grid-template-columns: 1fr 1fr 1fr; }

  /* Process 4 → 2 */
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-step::after { display: none; }

  /* Cases */
  .cases-tabs { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .case-shell { grid-template-columns: 1fr; gap: 28px; }
  .case-title { font-size: 30px; }

  /* Reviews 2 → 1 */
  .reviews-grid { grid-template-columns: 1fr; gap: 40px; }
  .reviews-left { position: static; }
  .reviews-title { font-size: 42px; }
  .reviews-bottom { grid-template-columns: 1fr 1fr; gap: 24px; }

  /* Documents 3 → 2 */
  .docs-grid-real { grid-template-columns: 1fr 1fr; }

  /* Final CTA */
  .cta-band-inner { grid-template-columns: 1fr; gap: 32px; align-items: start; }
  .cta-band h2 { font-size: 44px; }
  .cta-band-actions { grid-template-columns: 1fr 1fr; }

  /* Stats band */
  .stats-band-inner { grid-template-columns: 1fr 1fr; gap: 28px; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
}

/* ─────────────────────────────────────────────────────────────
   MOBILE — до 768px
   ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; overflow-x: clip; }

  /* ── Header — мобильная шапка ── */
  .header { height: 64px; }
  .header-inner { gap: 0; }
  .header .brand img { height: 30px !important; }
  .header-actions { gap: 8px; }
  .header-msgr { display: none; }            /* мессенджеры уходят в floating */
  .header-actions .btn-sm { padding: 10px 16px; }

  /* ── Eyebrow / titles ── */
  .eyebrow, .hero-eyebrow, .reviews-eyebrow { font-size: 11px; }
  .section-title { font-size: 32px; margin-bottom: 16px; }
  .section-lead { font-size: 16px; margin-bottom: 36px; }

  /* ── Hero ── */
  .hero { padding: 48px 0 56px; }
  .hero h1 { font-size: 40px; margin-bottom: 20px; }
  .hero-sub { font-size: 16px; margin-bottom: 28px; }
  .hero-magnet { font-size: 12px; margin-bottom: 24px; }
  .hero-cta-row { flex-direction: column; align-items: stretch; gap: 10px; margin-bottom: 40px; }
  .hero-cta-row .btn { width: 100%; }
  .hero-trust { grid-template-columns: 1fr; gap: 14px; }
  .hero-side { max-width: 100%; padding: 24px; }
  .hero-side h3 { font-size: 22px; }

  /* ── Buttons ── */
  .btn-lg { padding: 16px 24px; font-size: 15px; }

  /* ── Differentiators 2 → 1 ── */
  .diff-grid { grid-template-columns: 1fr; gap: 12px; }
  .diff-card { padding: 22px; }
  .diff-bottom { padding: 24px; }
  .diff-bottom h3 { font-size: 21px; }
  .diff-bottom .btn { width: 100%; }

  /* ── Production ── */
  .prod-photos {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 180px 130px 130px;
  }
  .prod-photo.p1 { grid-column: 1 / 3; grid-row: 1; }
  .prod-photo.p2 { grid-column: 1; grid-row: 2; }
  .prod-photo.p3 { grid-column: 2; grid-row: 2; }
  .prod-photo.p4 { grid-column: 1; grid-row: 3; }
  .prod-photo.p5 { grid-column: 2; grid-row: 3; }
  .prod-doc { flex-direction: column; }
  .prod-doc-preview { width: 100%; height: 160px; }
  .prod-text h3 { font-size: 19px; }
  .prod-quote { font-size: 15px; padding: 20px; }

  /* ── Compare table → вертикальные карточки без скролла ── */
  .compare-table { overflow: visible; }
  .compare-row { grid-template-columns: 1fr; min-width: 0; }
  .compare-row.head { display: none; }
  .compare-row .cell { padding: 14px 18px; font-size: 14px; }
  .compare-row .cell.label {
    background: #0A0A0A; color: #fff;
    font-size: 13px; font-weight: 800;
    text-transform: uppercase; letter-spacing: 0.04em;
    padding: 10px 18px;
  }
  .compare-row.final .cell.label { background: #E3421F; }
  .compare-row .cell.them {
    background: #F8F8F7;
    border-left: none;
  }
  .compare-row .cell.them::before {
    content: "Обычное предложение";
    display: block;
    font-size: 10px; font-weight: 700;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--color-fg-3);
    margin-bottom: 4px;
  }
  .compare-row .cell.us {
    border-left: none;
    border-top: 1px solid var(--color-border-1);
  }
  .compare-row .cell.us::before {
    content: "HELIX PRO";
    display: block;
    font-size: 10px; font-weight: 800;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: #E3421F;
    margin: 0 0 4px 0;
  }
  .compare-row.final .cell.them::before { color: #808080; }
  .compare-row.final .cell.us::before { color: #fff; }

  /* ── Calculator ── */
  .pc-form { padding: 20px; min-width: 0; }
  .pc-tabs { flex-direction: column; gap: 4px; }
  .pc-radio-cards { grid-template-columns: 1fr; }
  .pc-row-2 { grid-template-columns: 1fr 1fr; gap: 10px; }
  .pc-input { width: 100%; min-width: 0; }
  .pc-field { min-width: 0; }
  .pc-chips { gap: 6px; }
  .pc-chip { flex: 0 1 auto; }
  .pc-result { padding: 22px; }
  .pc-result-total { font-size: 38px; word-break: break-word; }

  /* ── Process 2 → 1 ── */
  .process-grid { grid-template-columns: 1fr; gap: 12px; }
  .process-step { padding: 24px; }
  .process-num { font-size: 44px; }
  .process-pledge { flex-direction: column; align-items: flex-start; padding: 22px; }

  /* ── Cases ── */
  .cases-tabs {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    gap: 8px;
  }
  .cases-tab {
    flex: 0 0 auto;
    min-width: 200px;
    scroll-snap-align: start;
  }
  .case-title { font-size: 26px; }
  .case-stats { grid-template-columns: 1fr; gap: 10px; }
  .case-stat { flex-direction: row; align-items: baseline; gap: 10px; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--color-border-1); }
  .case-stat-num { font-size: 24px; }
  .case-photo-grid { grid-template-columns: repeat(4, 1fr); }
  .cases-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  .case-lightbox { padding: 16px; }
  .case-lightbox-nav { width: 42px; height: 42px; }
  .case-lightbox-nav.prev { left: 8px; }
  .case-lightbox-nav.next { right: 8px; }

  /* ── Reviews ── */
  .reviews-title { font-size: 32px; }
  .stack { height: 580px; }
  .stack-card { padding: 26px 24px 22px; }
  .stack-text { font-size: 15px; -webkit-line-clamp: 11; }
  .yandex-card { padding: 22px; }
  .reviews-bottom { grid-template-columns: 1fr; gap: 18px; text-align: left; }
  .reviews-bottom-stat { border-left: none; border-top: 1px solid #232323; padding-left: 0; padding-top: 16px; }
  .reviews-bottom .btn { width: 100%; }
  .stack-controls { padding: 0; }
  .stack-tip { display: none; }

  /* ── Documents 2 → 1 ── */
  .docs-grid-real { grid-template-columns: 1fr; }
  .doc-real-cover { height: 280px; }
  .doc-lightbox { padding: 16px; }
  .doc-lightbox-inner { grid-template-columns: 1fr; max-height: 92vh; overflow-y: auto; }
  .doc-lightbox-image { border-left: none; border-top: 1px solid var(--color-border-1); }
  .doc-lightbox-meta { padding: 28px; }

  /* ── Final CTA ── */
  .cta-band { padding: 56px 0; }
  .cta-band h2 { font-size: 32px; }
  .cta-band-form { flex-direction: column; }
  .cta-band-form .input { width: 100%; }
  .cta-band-form .btn { width: 100%; }
  .cta-band-actions { grid-template-columns: 1fr; }

  /* ── Stats band ── */
  .stats-band { padding: 44px 0; }
  .stat-band-num { font-size: 42px; }

  /* ── Footer ── */
  .footer { padding: 48px 0 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }

  /* ── Modal ── */
  .modal { padding: 28px 24px; }
  .modal h3 { font-size: 24px; }

  /* ── Tweaks panel — приподнять, чтобы не лез под floating ── */
}

/* ─────────────────────────────────────────────────────────────
   SMALL PHONE — до 480px
   ───────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .section-title { font-size: 27px; }
  .hero h1 { font-size: 33px; }
  .hero-side { padding: 20px; }

  .case-title { font-size: 23px; }
  .case-photo-grid { grid-template-columns: repeat(3, 1fr); }

  .reviews-title { font-size: 27px; }
  .stack { height: 620px; }

  .pc-result-total { font-size: 34px; }
  .doc-real-cover { height: 240px; }

  .diff-bottom h3, .process-title { font-size: 19px; }

  /* Чуть крупнее тач-таргеты */
  .calc-option, .pc-chip { min-height: 44px; }
}

/* ─────────────────────────────────────────────────────────────
   Floating call button — только на мобильных
   ───────────────────────────────────────────────────────────── */
.mobile-call-fab { display: none; }

@media (max-width: 768px) {
  .mobile-call-fab {
    display: flex;
    position: fixed;
    right: 16px; bottom: 16px;
    z-index: 90;
    gap: 10px;
    align-items: center;
  }
  .mobile-call-fab a {
    width: 54px; height: 54px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.28);
    color: #fff;
  }
  .mobile-call-fab a.wa { background: #25D366; }
  .mobile-call-fab a.tg { background: #229ED9; }
  .mobile-call-fab a.call { background: #E3421F; }
  .mobile-call-fab a svg { width: 24px; height: 24px; }
}