/* B2C landing — Друк підручників (mobile-first) */
:root {
  --tb-ink: #1a1f2c;
  --tb-muted: #5b6475;
  --tb-line: #d7dde8;
  --tb-bg: #f5f7fb;
  --tb-card: #ffffff;
  --tb-blue: #1a56d6;
  --tb-deep: #0b2c6b;
  --tb-orange: #ff7a29;
  --tb-ok: #0f7b4c;
  --tb-radius: 14px;
  --tb-dock: 64px;
  --tb-tap: 48px;
  --tb-font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --tb-header-offset: 158px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--tb-header-offset) + 12px);
}

body.op-tb-landing #content.site-content,
body.op-tb-landing #content,
body.op-tb-landing .col-full,
body.op-tb-landing .content-area,
body.op-tb-landing .site-main {
  margin: 0 !important;
  padding: 0 !important;
  max-width: none !important;
  width: 100% !important;
  float: none !important;
}

body.op-tb-landing {
  margin: 0;
  font-family: var(--tb-font);
  color: var(--tb-ink);
  background: var(--tb-bg);
  line-height: 1.45;
  padding-bottom: calc(var(--tb-dock) + env(safe-area-inset-bottom, 0px));
}

body.op-tb-landing main img { max-width: 100%; height: auto; display: block; }

body.op-tb-landing main a { color: var(--tb-blue); }

.op-tb-skip {
  position: absolute;
  left: -9999px;
}
.op-tb-skip:focus {
  left: 12px;
  top: 12px;
  z-index: 100;
  background: #fff;
  padding: 8px 12px;
}

.op-tb-wrap {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

/* Site-like header (no catalog menu). Mobile = main-site compact chrome. */
.op-tb-sitehead {
  position: sticky;
  top: 0;
  z-index: 40;
  color: #fff;
  background: linear-gradient(135deg, var(--tb-deep) 0%, var(--tb-blue) 100%);
  box-shadow: 0 8px 22px rgba(11, 44, 107, .18);
}
.op-tb-sitehead a { color: inherit; text-decoration: none; }
.op-tb-sitehead__top {
  border-bottom: 1px solid rgba(255,255,255,.14);
  font-size: 12.5px;
}
.op-tb-sitehead__top-inner {
  min-height: 38px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 6px 0;
}
.op-tb-sitehead__meta { margin: 0; opacity: .92; color: #cfe0ff; }
.op-tb-sitehead__socials {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.op-tb-social {
  width: 32px;
  height: 32px;
  min-height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.28);
  flex: none;
  transition: transform .15s ease, border-color .15s ease;
}
.op-tb-social:hover,
.op-tb-social:focus-visible {
  border-color: #fff;
  transform: translateY(-1px);
}
.op-tb-social svg {
  display: block;
  pointer-events: none;
}
.op-tb-sitehead__main-inner {
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
}
.op-tb-sitehead__burger {
  display: none;
  flex: none;
  width: 38px;
  height: 38px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  color: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.op-tb-sitehead__burger svg { width: 22px; height: 22px; display: block; }
.op-tb-sitehead__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.op-tb-sitehead__brand img {
  width: auto;
  height: 42px;
  filter: brightness(0) invert(1);
}
.op-tb-sitehead__brand span {
  font-size: 12px;
  opacity: .85;
  display: none;
}
.op-tb-sitehead__phones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-weight: 700;
  margin-left: auto;
}
.op-tb-sitehead__phones a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.op-tb-sitehead__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
}
.op-tb-cart {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.16);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.35);
  flex: none;
  text-decoration: none;
  transition: background .15s ease, border-color .15s ease;
}
.op-tb-cart:hover,
.op-tb-cart:focus-visible {
  background: rgba(255,255,255,.28);
  border-color: rgba(255,255,255,.55);
}
.op-tb-cart svg { width: 20px; height: 20px; display: block; }
.op-tb-cart__count {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--tb-orange);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  box-shadow: 0 0 0 2px rgba(11,44,107,.35);
}
.op-tb-cart__count[hidden] { display: none !important; }
@keyframes op-tb-cart-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.16); }
  100% { transform: scale(1); }
}
.op-tb-cart.is-updated { animation: op-tb-cart-pop .35s ease; }
.op-tb-sitehead__icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.12);
  color: #fff;
}
.op-tb-sitehead__icon-btn--call { background: var(--tb-orange); }
.op-tb-sitehead__icon-btn svg { width: 19px; height: 19px; display: block; }
.op-tb-sitehead__mobile-social {
  display: none;
}
.op-tb-sitehead__mobile-social-inner {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 2px 0 12px;
}
.op-tb-sitehead__mobile-social .op-tb-social {
  width: 28px;
  height: 28px;
  min-height: 28px;
}
.op-tb-sitehead__mobile-social .op-tb-social svg {
  width: 13px;
  height: 13px;
}

/* Mobile drawer (info links only — no catalog). */
.op-tb-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(11, 20, 40, .55);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}
.op-tb-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.op-tb-drawer {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 91;
  width: min(92vw, 380px);
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--tb-deep);
  color: #fff;
  transform: translateX(-100%);
  transition: transform .25s ease;
  overflow: hidden;
}
.op-tb-drawer.is-open { transform: translateX(0); }
.op-tb-drawer[hidden],
.op-tb-drawer-overlay[hidden] { display: none !important; }
.op-tb-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
  border-bottom: 1px solid rgba(255,255,255,.14);
  flex: none;
}
.op-tb-drawer__logo img {
  height: 34px;
  width: auto;
  filter: brightness(0) invert(1);
}
.op-tb-drawer__close {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--tb-orange);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.op-tb-drawer__nav {
  flex: 1 1 auto;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px 0;
}
.op-tb-drawer__nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.op-tb-drawer__nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 10px 16px;
  color: #eef3ff;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.op-tb-drawer__count {
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--tb-orange);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  flex: none;
}
.op-tb-drawer__count[hidden] { display: none !important; }
.op-tb-drawer__foot {
  flex: none;
  padding: 14px 16px 20px;
  border-top: 1px solid rgba(255,255,255,.14);
}
.op-tb-drawer__meta {
  margin: 0 0 10px;
  font-size: 13px;
  color: #cfe0ff;
  line-height: 1.4;
}
.op-tb-drawer__phones {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}
.op-tb-drawer__phones a {
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
}
.op-tb-drawer__socials {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
body.op-tb-drawer-open {
  overflow: hidden;
}

/* ≤899px: same compact pattern as main site header. */
@media (max-width: 899px) {
  .op-tb-sitehead__top { display: none; }
  .op-tb-sitehead__phones { display: none; }
  .op-tb-sitehead__burger { display: flex; }
  .op-tb-sitehead__actions { margin-left: auto; }
  .op-tb-sitehead__icon-btn--call { display: inline-flex; }
  .op-tb-cart { width: 38px; height: 38px; }
  .op-tb-sitehead__mobile-social {
    display: block;
    max-height: 56px;
    opacity: 1;
    overflow: hidden;
    transition: max-height .22s ease, opacity .18s ease;
  }
  .op-tb-sitehead__main-inner {
    min-height: 0;
    padding: 12px 0 6px;
    gap: 8px;
  }
  .op-tb-sitehead__brand img { height: 32px; }
  .op-tb-sitehead.is-compact .op-tb-sitehead__mobile-social {
    max-height: 0;
    opacity: 0;
    pointer-events: none;
  }
  .op-tb-sitehead.is-compact .op-tb-sitehead__main-inner { padding: 8px 0; }
  .op-tb-sitehead.is-compact .op-tb-sitehead__brand img { height: 28px; }
  .op-tb-sitehead.is-compact .op-tb-sitehead__burger,
  .op-tb-sitehead.is-compact .op-tb-sitehead__icon-btn,
  .op-tb-sitehead.is-compact .op-tb-cart {
    width: 34px;
    height: 34px;
  }
}

@media (min-width: 900px) {
  .op-tb-sitehead__brand span { display: inline; }
  .op-tb-sitehead__burger,
  .op-tb-sitehead__icon-btn--call,
  .op-tb-sitehead__mobile-social { display: none !important; }
  .op-tb-drawer,
  .op-tb-drawer-overlay { display: none !important; }
}

.op-tb-combo-grid {
  display: grid;
  gap: 12px;
}
@media (min-width: 560px) {
  .op-tb-combo-grid { grid-template-columns: 1fr 1fr; }
}

/* Site-like footer (info + socials, no catalog). */
.op-tb-sitefoot {
  margin-top: 28px;
  background: #0b2c6b;
  color: #e8eefc;
}
.op-tb-sitefoot a { color: #fff; text-decoration: none; }
.op-tb-sitefoot__consult {
  background: linear-gradient(120deg, #123a86, #1a56d6);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.op-tb-sitefoot__consult-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 0;
}
.op-tb-sitefoot__consult strong {
  display: block;
  font-size: 18px;
  margin-bottom: 4px;
}
.op-tb-sitefoot__consult-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.op-tb-sitefoot__consult-actions .op-tb-btn--ghost {
  border-color: rgba(255,255,255,.55);
  color: #fff;
  background: transparent;
}
.op-tb-sitefoot__grid {
  display: grid;
  gap: 22px;
  padding: 28px 0 18px;
}
@media (min-width: 800px) {
  .op-tb-sitefoot__grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}
.op-tb-sitefoot__brand img {
  width: 130px;
  height: auto;
  margin-bottom: 10px;
  filter: brightness(0) invert(1);
}
.op-tb-sitefoot__brand p,
.op-tb-sitefoot .op-tb-hint {
  color: rgba(255,255,255,.78);
}
.op-tb-sitefoot__links h3,
.op-tb-sitefoot__social h3 {
  margin: 0 0 10px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .04em;
  opacity: .85;
}
.op-tb-sitefoot__links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.op-tb-sitefoot__links a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.op-tb-sitefoot__social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}
.op-tb-sitefoot__social-row .op-tb-social {
  width: 36px;
  height: 36px;
}
.op-tb-sitefoot__bottom {
  border-top: 1px solid rgba(255,255,255,.14);
}
.op-tb-sitefoot__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0 18px;
  font-size: 13px;
}
.op-tb-sitefoot__bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.op-tb-hero {
  padding: 28px 0 12px;
  background: linear-gradient(160deg, #eaf1ff 0%, var(--tb-bg) 55%);
}
.op-tb-hero__grid {
  display: grid;
  gap: 20px;
}
.op-tb-eyebrow {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--tb-blue);
}
.op-tb-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.55rem, 5.2vw, 2.35rem);
  line-height: 1.15;
  color: var(--tb-deep);
}
.op-tb-hero__lead {
  margin: 0 0 18px;
  color: var(--tb-muted);
  font-size: 1.02rem;
}
.op-tb-hero__cta {
  display: grid;
  gap: 10px;
}
.op-tb-hero__media {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--tb-line);
  background: #fff;
  box-shadow: 0 16px 40px rgba(11, 44, 107, .12);
}
.op-tb-hero__media img { width: 100%; aspect-ratio: 1; object-fit: cover; }

.op-tb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tb-tap);
  padding: 12px 18px;
  border-radius: 12px;
  border: 0;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.op-tb-btn--primary {
  background: var(--tb-orange);
  color: #fff;
}
.op-tb-btn--ghost {
  background: #fff;
  color: var(--tb-deep);
  border: 1px solid var(--tb-line);
}

.op-tb-link-quiet {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  color: var(--tb-muted);
  font-size: .92rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.op-tb-form__actions--stack {
  display: grid;
  gap: 10px;
}
.op-tb-form__actions--after-price {
  display: grid;
  gap: 10px;
  margin: 4px 0 4px;
}
.op-tb-form__actions--after-price:not(:has(button:not([hidden]))) {
  display: none;
}
.op-tb-form [data-op-tb-calculate][hidden],
.op-tb-form [data-op-tb-order][hidden],
.op-tb-form [data-op-tb-save-calc][hidden] {
  display: none !important;
}
.op-tb-form__msg-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.op-tb-compare {
  margin: 0 0 12px;
  display: grid;
  gap: 10px;
}
.op-tb-compare__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.op-tb-chip {
  min-height: 40px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--tb-line);
  background: #fff;
  font: inherit;
  font-weight: 700;
  color: var(--tb-deep);
  cursor: pointer;
}
.op-tb-compare-board {
  margin: 0 0 14px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--tb-line);
  background: #eef3ff;
}
.op-tb-compare-board__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.op-tb-compare-board__grid {
  display: grid;
  gap: 10px;
}
@media (min-width: 720px) {
  .op-tb-compare-board__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.op-tb-cmp-card {
  background: #fff;
  border: 1px solid var(--tb-line);
  border-radius: 12px;
  padding: 12px;
}
.op-tb-cmp-card strong { display: block; font-size: 1.2rem; color: var(--tb-deep); }
.op-tb-cmp-card small { color: var(--tb-muted); }
.op-tb-cmp-card ul {
  margin: 10px 0;
  padding-left: 1.1rem;
  color: var(--tb-ink);
  font-size: .92rem;
}
.op-tb-cmp-card__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.op-tb-cmp-card__actions button {
  min-height: 40px;
  border-radius: 10px;
  border: 1px solid var(--tb-line);
  background: #f5f7fb;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.op-tb-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(11, 44, 107, .45);
  display: grid;
  place-items: center;
  padding: 16px;
}
.op-tb-modal__card {
  width: min(440px, 100%);
  background: #fff;
  border-radius: 16px;
  padding: 20px 18px 18px;
  position: relative;
  box-shadow: 0 20px 50px rgba(11, 44, 107, .28);
}
.op-tb-modal__card h3 { margin: 0 0 8px; }
.op-tb-modal__card p { margin: 0 0 14px; color: var(--tb-muted); }
.op-tb-modal__close {
  position: absolute;
  top: 8px;
  right: 10px;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--tb-muted);
}
.op-tb-modal__actions {
  display: grid;
  gap: 8px;
}

.op-tb-benefits { padding: 8px 0 24px; }
.op-tb-benefits__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.op-tb-benefits__grid li {
  background: var(--tb-card);
  border: 1px solid var(--tb-line);
  border-radius: var(--tb-radius);
  padding: 14px 16px;
}
.op-tb-benefits__grid strong { display: block; font-size: 1.05rem; margin-bottom: 4px; }
.op-tb-benefits__grid span { color: var(--tb-muted); font-size: .95rem; }

.op-tb-callout-wrap { padding: 8px 0 4px; }
.op-tb-callout {
  margin: 0;
  padding: 16px 18px 16px 20px;
  border-radius: var(--tb-radius);
  background: #fff7ef;
  border: 1px solid #ffd2b0;
  box-shadow: inset 4px 0 0 var(--tb-orange);
}
.op-tb-callout h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  color: var(--tb-deep);
  line-height: 1.3;
}
.op-tb-callout p {
  margin: 0 0 8px;
  color: var(--tb-ink);
  font-size: .98rem;
  line-height: 1.5;
}
.op-tb-callout p:last-child { margin-bottom: 0; }
.op-tb-callout a {
  color: var(--tb-blue);
  font-weight: 700;
  text-decoration: none;
}
.op-tb-callout a:hover { text-decoration: underline; }

.op-tb-specs,
.op-tb-calc,
.op-tb-gallery,
.op-tb-steps,
.op-tb-faq,
.op-tb-contacts {
  padding: 28px 0;
}
#op-tb-calc,
#op-tb-order,
#op-tb-contacts,
#op-tb-hero {
  scroll-margin-top: calc(var(--tb-header-offset) + 12px);
}
.op-tb-specs h2,
.op-tb-calc h2,
.op-tb-gallery h2,
.op-tb-steps h2,
.op-tb-faq h2,
.op-tb-contacts h2 {
  margin: 0 0 14px;
  font-size: 1.45rem;
  color: var(--tb-deep);
}
.op-tb-specs__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.op-tb-specs__list li {
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--tb-line);
  padding: 12px 14px;
}

.op-tb-calc { background: #fff; border-block: 1px solid var(--tb-line); }
.op-tb-form {
  display: grid;
  gap: 16px;
}
.op-tb-field {
  margin: 0;
  padding: 0;
  border: 0;
}
.op-tb-field__label,
.op-tb-field legend {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  font-size: .95rem;
}

.op-tb-seg {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.op-tb-seg--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.op-tb-seg--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.op-tb-seg__item {
  position: relative;
  min-height: var(--tb-tap);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 10px 8px;
  border: 1px solid var(--tb-line);
  border-radius: 12px;
  background: #fff;
  font-weight: 600;
  font-size: .92rem;
  cursor: pointer;
}
.op-tb-seg__item input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.op-tb-seg__item:has(input:checked) {
  border-color: var(--tb-blue);
  background: #eef4ff;
  color: var(--tb-deep);
  box-shadow: inset 0 0 0 1px var(--tb-blue);
}
.op-tb-seg__item:has(input:disabled) {
  opacity: .45;
  cursor: not-allowed;
}

.op-tb-stepper {
  display: grid;
  grid-template-columns: var(--tb-tap) 1fr var(--tb-tap);
  gap: 8px;
  align-items: center;
}
.op-tb-stepper__btn {
  width: var(--tb-tap);
  height: var(--tb-tap);
  border-radius: 12px;
  border: 1px solid var(--tb-line);
  background: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  cursor: pointer;
}
.op-tb-stepper input {
  width: 100%;
  min-height: var(--tb-tap);
  border: 1px solid var(--tb-line);
  border-radius: 12px;
  text-align: center;
  font-size: 1.15rem;
  font-weight: 700;
  background: #fbfcfe;
}

.op-tb-input {
  width: 100%;
  min-height: var(--tb-tap);
  margin: 0 0 12px;
  padding: 12px 14px;
  border: 1px solid var(--tb-line);
  border-radius: 12px;
  background: #fbfcfe;
  font: inherit;
  color: var(--tb-ink);
}
.op-tb-input--area {
  min-height: 96px;
  resize: vertical;
  line-height: 1.4;
}
.op-tb-field--layout .op-tb-field__label {
  display: block;
  margin: 0 0 6px;
}
.op-tb-field--layout .op-tb-hint strong {
  color: var(--tb-ink);
}

.op-tb-hint {
  margin: 8px 0 0;
  color: var(--tb-muted);
  font-size: .86rem;
}

.op-tb-price {
  margin-top: 4px;
  padding: 16px;
  border-radius: 16px;
  background: var(--tb-deep);
  color: #fff;
}
.op-tb-price__row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}
.op-tb-price__row strong {
  font-size: clamp(1.4rem, 5vw, 1.85rem);
  font-variant-numeric: tabular-nums;
}
.op-tb-price__row em {
  font-style: normal;
  opacity: .75;
  font-weight: 500;
  font-size: .85em;
}
.op-tb-price__row--unit {
  margin-top: 8px;
  opacity: .92;
}
.op-tb-price__row--unit strong { font-size: 1.05rem; }
.op-tb-price__status {
  margin: 12px 0 0;
  font-size: .9rem;
  opacity: .85;
}
.op-tb-price__calc {
  width: 100%;
  margin-top: 14px;
  background: var(--tb-cta, #ff7a29);
  color: #fff;
  border: 0;
}
.op-tb-price__calc:disabled {
  opacity: .65;
  cursor: wait;
}
.op-tb-price.is-loading { opacity: .72; }
.op-tb-seg__item.is-disabled,
.op-tb-seg__item:has(input:disabled) {
  opacity: .45;
  cursor: not-allowed;
}
.op-tb-btn--ghost {
  background: #fff;
  color: var(--tb-deep);
  border: 1px solid var(--tb-line);
}

.op-tb-form__actions {
  display: grid;
  gap: 10px;
}

.op-tb-gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.op-tb-gallery__grid figure {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--tb-line);
  background: #fff;
}
.op-tb-gallery__grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.op-tb-steps__list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 12px;
}
.op-tb-steps__list li { padding-left: 4px; }

.op-tb-faq details {
  background: #fff;
  border: 1px solid var(--tb-line);
  border-radius: 12px;
  padding: 4px 14px;
  margin-bottom: 8px;
}
.op-tb-faq summary {
  min-height: var(--tb-tap);
  display: flex;
  align-items: center;
  font-weight: 700;
  cursor: pointer;
}
.op-tb-faq p { margin: 0 0 12px; color: var(--tb-muted); }

.op-tb-contacts__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.op-tb-contacts__list a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tb-tap);
  font-weight: 700;
  text-decoration: none;
  color: var(--tb-deep);
}

.op-tb-foot {
  padding: 24px 0 32px;
  color: var(--tb-muted);
  font-size: .85rem;
}

.op-tb-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom, 0px));
  background: rgba(255,255,255,.96);
  border-top: 1px solid var(--tb-line);
  box-shadow: 0 -8px 24px rgba(16, 24, 40, .08);
}
.op-tb-dock__btn {
  min-height: var(--tb-tap);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  background: var(--tb-deep);
  color: #fff;
  font-size: .9rem;
}
.op-tb-dock__btn--tg { background: #2aabee; }
.op-tb-dock__btn--vb { background: #7360f2; }

@media (min-width: 768px) {
  .op-tb-hero__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
    gap: 36px;
  }
  .op-tb-hero__cta {
    grid-template-columns: auto auto;
    justify-content: start;
  }
  .op-tb-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .op-tb-gallery__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .op-tb-form__actions {
    grid-template-columns: auto auto;
    justify-content: start;
  }
}

@media (min-width: 960px) {
  .op-tb-benefits__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}