:root {
  --bg: #f3f6f5;
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: rgba(15, 23, 42, 0.1);
  --teal: #0f766e;
  --teal-bright: #14b8a6;
  --teal-soft: #ccfbf1;
  --amber: #ea8c00;
  --amber-hover: #d97706;
  --hero-deep: #0b3d3a;
  --hero-mid: #12665f;
  --radius: 4px;
  --font-display: "Unbounded", sans-serif;
  --font-body: "Manrope", sans-serif;
  --container: 1120px;
  --header-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 100% 0%, rgba(20, 184, 166, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 0% 30%, rgba(234, 140, 0, 0.06), transparent 50%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

#top {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  pointer-events: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--teal);
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(12px);
  background: rgba(243, 246, 245, 0.85);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
}

.logo-mark-wrap {
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--hero-deep);
}

.logo-mark {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.14);
  display: block;
}

.logo-text {
  line-height: 1;
}

.logo:hover {
  color: var(--teal);
}

.nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
}

.nav a {
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
}

.nav a:hover {
  color: var(--teal);
}

.header-phone {
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  color: var(--amber);
}

.header-phone:hover {
  color: var(--amber-hover);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 1.35rem;
  height: 2px;
  margin: 6px auto;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.75rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  color: inherit;
}

.btn-primary {
  background: var(--amber);
  color: #1a1200;
}

.btn-primary:hover {
  background: var(--amber-hover);
  color: #1a1200;
}

.btn-secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #f8fffe;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(11, 61, 58, 0.92) 0%, rgba(18, 102, 95, 0.78) 48%, rgba(15, 118, 110, 0.55) 100%),
    radial-gradient(circle at 75% 35%, rgba(20, 184, 166, 0.35), transparent 42%),
    linear-gradient(160deg, var(--hero-deep), #164e4a 55%, #0f766e);
  transform: scale(1.02);
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 85%);
  pointer-events: none;
}

@keyframes heroDrift {
  from { transform: scale(1.02) translate3d(0, 0, 0); }
  to { transform: scale(1.06) translate3d(-1.5%, 1%, 0); }
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(3rem, 8vh, 5rem);
}

.brand-mark {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: #fff;
}

.brand-us {
  color: var(--amber);
}

.hero h1 {
  margin: 0 0 0.65rem;
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.2vw, 2.15rem);
  font-weight: 600;
  line-height: 1.2;
  color: rgba(255, 255, 255, 0.94);
}

.hero-sub {
  margin: 0 0 1rem;
  max-width: 28ch;
  font-family: var(--font-display);
  font-size: clamp(0.98rem, 2vw, 1.2rem);
  font-weight: 500;
  line-height: 1.35;
  color: rgba(255, 255, 255, 0.88);
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 36ch;
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.82);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  min-height: 280px;
}

.hero-photo {
  width: min(100%, 540px);
  display: grid;
  place-items: center;
  animation: photoFloat 7s ease-in-out infinite;
}

@keyframes photoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.bike-silhouette {
  width: min(100%, 480px);
  color: #fff;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.25));
}

/* Sections */
.section {
  padding-block: clamp(3.5rem, 8vw, 5.5rem);
}

.section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.35rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0 0 2rem;
  max-width: 42ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

/* Audience */
.audience {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), transparent),
    var(--bg);
}

.audience-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 3rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.audience-item h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}

.audience-item p {
  margin: 0;
  color: var(--ink-soft);
}

/* Gallery */
.gallery {
  background:
    linear-gradient(180deg, rgba(15, 118, 110, 0.08), transparent 45%),
    var(--bg);
}

.gallery h2 {
  margin-bottom: 2rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
  align-items: stretch;
}

.gallery-item {
  position: relative;
  z-index: 0;
  margin: 0;
  padding: 0;
  overflow: visible;
  background: linear-gradient(160deg, #0b3d3a, #12665f 55%, #0f766e);
  aspect-ratio: 4 / 5;
  box-shadow: 0 16px 36px rgba(15, 118, 110, 0.22);
}

.gallery-item::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 4% -14% -22% -14%;
  background: radial-gradient(
    ellipse at center,
    rgba(45, 212, 191, 0.5) 0%,
    rgba(20, 184, 166, 0.26) 40%,
    transparent 74%
  );
  filter: blur(26px);
  pointer-events: none;
}

.gallery-open {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
  display: block;
  transition: transform 0.45s ease;
  pointer-events: none;
}

.gallery-item:hover img {
  transform: scale(1.04);
}

.gallery-dots {
  display: none;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3.5rem 4rem;
  background: rgba(8, 30, 28, 0.88);
  backdrop-filter: blur(6px);
  overflow: hidden;
}

.lightbox[hidden] {
  display: none !important;
}

.lightbox-frame {
  width: min(92vw, 920px);
  height: min(82vh, 820px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  overflow: hidden;
  touch-action: none;
  cursor: zoom-in;
}

.lightbox-frame.is-zoomed {
  cursor: grab;
}

.lightbox-frame.is-dragging {
  cursor: grabbing;
}

.lightbox-image {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: center;
  transform-origin: center center;
  user-select: none;
  -webkit-user-drag: none;
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  z-index: 2;
  border: 0;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-family: var(--font-body);
  line-height: 1;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
  outline: none;
  box-shadow: none;
  -webkit-tap-highlight-color: transparent;
}

.lightbox-close:focus,
.lightbox-close:focus-visible,
.lightbox-nav:focus,
.lightbox-nav:focus-visible {
  outline: none;
  box-shadow: none;
}

.lightbox-close {
  top: 0.85rem;
  right: 1rem;
  width: 2.75rem;
  height: 2.75rem;
  font-size: 2.1rem;
  font-weight: 300;
}

.lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  font-size: 2.4rem;
  font-weight: 300;
}

.lightbox-prev {
  left: 0.5rem;
}

.lightbox-next {
  right: 0.5rem;
}

.lightbox-close:hover,
.lightbox-nav:hover {
  background: transparent;
  color: #ffe4b0;
}

body.lightbox-open {
  overflow: hidden;
}

@media (max-width: 600px) {
  .lightbox {
    padding: 3.25rem 0.75rem;
  }

  .lightbox-frame {
    width: min(96vw, 920px);
    height: min(75vh, 820px);
  }

  .lightbox-nav {
    width: 2.4rem;
    height: 2.4rem;
  }
}

/* Benefits */
.benefit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.benefit-list li {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--line);
}

.benefit-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.benefit-num {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--teal);
  padding-top: 0.15rem;
}

.benefit-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.benefit-list p {
  margin: 0;
  color: var(--ink-soft);
}

/* Pricing */
.pricing {
  background:
    linear-gradient(160deg, #e7f7f4 0%, #f7faf9 45%, #fff8eb 100%);
}

.tariff-switch {
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.3rem;
  margin-bottom: 1.75rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
}

.tariff-btn {
  min-width: 6.5rem;
  min-height: 2.6rem;
  padding: 0.45rem 1rem;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.tariff-btn.is-active {
  background: var(--amber);
  color: #1a1200;
}

.price-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.price-item {
  padding: 1.25rem 1rem 1.35rem;
  background: rgba(255, 255, 255, 0.72);
  border-top: 3px solid var(--teal-bright);
}

.price-term {
  margin: 0 0 0.65rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.price-value {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.price-value span {
  color: var(--teal);
}

.calculator {
  margin-top: 2.25rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.calculator-title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}

.calculator-hint {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.calculator-label {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.days-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 0.4rem;
  border-radius: var(--radius);
  background: linear-gradient(90deg, var(--teal-soft), rgba(20, 184, 166, 0.35));
  outline: none;
  cursor: pointer;
}

.days-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--teal);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.25);
  cursor: pointer;
}

.days-range::-moz-range-thumb {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--teal);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.25);
  cursor: pointer;
}

.days-scale {
  display: flex;
  justify-content: space-between;
  margin: 0.45rem 0 1.35rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.calc-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.calc-stat {
  padding: 1rem 0;
  border-top: 3px solid var(--teal-bright);
}

.calc-stat-total {
  border-top-color: var(--amber);
}

.calc-stat-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.calc-stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--teal);
}

.calc-stat-total .calc-stat-value {
  color: var(--ink);
}

/* Floating socials */
.social-float {
  position: fixed;
  right: 1rem;
  bottom: 1.25rem;
  top: auto;
  z-index: 55;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transform: none;
}

.social-float-btn {
  display: grid;
  place-items: center;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  background: rgba(15, 118, 110, 0.94);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(15, 46, 44, 0.18);
  transition: transform 0.2s ease, background-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.social-float-btn svg {
  width: 1.5rem;
  height: 1.5rem;
}

.social-float-btn[aria-label="Telegram"] svg {
  transform: translateX(-1.5px);
}

.social-float-btn[aria-label="VK"] svg {
  width: 2.15rem;
  height: 2.15rem;
}

.social-float-btn:hover {
  transform: translateY(-2px);
  background: var(--hero-deep);
  color: #fff;
}

.social-float.is-on-dark .social-float-btn {
  background: rgba(255, 255, 255, 0.94);
  color: var(--teal);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

.social-float.is-on-dark .social-float-btn:hover {
  background: #fff;
  color: var(--hero-deep);
}

/* Mobile sticky CTA */
.mobile-cta {
  display: none;
}

.tariff-panel {
  animation: panelIn 0.35s ease;
}

@keyframes panelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Specs */
.specs h2 {
  margin-bottom: 2rem;
}

.spec-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.spec-grid li {
  padding: 1.15rem 1rem 1.15rem 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-weight: 600;
  padding-left: 1rem;
}

.spec-grid li:nth-child(3n) {
  border-right: 0;
}

/* Steps */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.steps li {
  padding-top: 1rem;
  border-top: 2px solid var(--teal-bright);
}

.step-num {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--teal);
}

.steps h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.steps p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

/* Contacts */
.contacts {
  background:
    linear-gradient(135deg, var(--hero-deep), var(--hero-mid) 60%, #0f766e);
  color: #f5fffd;
}

.contacts .section-lead {
  color: rgba(255, 255, 255, 0.78);
}

.contacts-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: end;
  margin-bottom: 2rem;
}

.contacts-address {
  margin: 0 0 1rem;
  font-style: normal;
  line-height: 1.45;
}

.contacts-address p {
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 600;
}

.contacts-district {
  margin-top: 0.25rem !important;
  font-weight: 500 !important;
  color: rgba(255, 255, 255, 0.7) !important;
  font-size: 0.95rem;
}

.contacts-phone {
  display: inline-block;
  margin: 0.25rem 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 600;
  text-decoration: none;
  color: #fff;
}

.contacts-phone:hover {
  color: #ffe4b0;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-bottom: 1.25rem;
}

.social-links a {
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.social-links a:hover {
  color: #ffe4b0;
  border-bottom-color: #ffe4b0;
}

.extra-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.contacts-cta {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.contacts-cta p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
}

.contacts .contacts-route.btn-secondary {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
  width: 100%;
}

.contacts .contacts-route.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.contacts-cta .btn-primary {
  width: 100%;
}

.contacts-map {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.2);
  aspect-ratio: 21 / 9;
  min-height: 260px;
}

.contacts-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  filter: saturate(0.72) brightness(0.86) contrast(0.96);
  transition: filter 0.35s ease;
}

.contacts-map:hover iframe,
.contacts-map:focus-within iframe {
  filter: saturate(0.82) brightness(0.92) contrast(0.98);
}

/* Footer */
.site-footer {
  padding: 1.5rem 0;
  background: #082e2c;
  color: rgba(255, 255, 255, 0.7);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
}

.footer-brand {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  color: #fff;
}

.footer-meta {
  margin: 0;
  font-size: 0.9rem;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal.reveal-instant {
  transition: none;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .contacts-grid,
  .audience-row,
  .steps {
    grid-template-columns: 1fr;
  }

  .price-row,
  .spec-grid,
  .calc-result {
    grid-template-columns: 1fr;
  }

  .spec-grid li {
    border-right: 0;
  }

  .gallery-grid {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: 1rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.25rem;
  }

  .gallery-grid::-webkit-scrollbar {
    display: none;
  }

  .gallery-item {
    flex: 0 0 min(78vw, 320px);
    scroll-snap-align: center;
    aspect-ratio: 4 / 5;
  }

  .gallery-dots {
    display: flex;
    justify-content: center;
    gap: 0.45rem;
    margin-top: 1rem;
  }

  .gallery-dot {
    width: 0.55rem;
    height: 0.55rem;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(15, 118, 110, 0.28);
    cursor: pointer;
  }

  .gallery-dot.is-active {
    background: var(--teal);
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 0.75rem 1rem 1rem;
    background: rgba(243, 246, 245, 0.98);
    border-bottom: 1px solid var(--line);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--line);
  }

  .header-phone {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .brand-mark {
    font-size: clamp(2.2rem, 12vw, 3.4rem);
  }

  .hero h1 {
    max-width: none;
  }

  body {
    padding-bottom: calc(4.25rem + env(safe-area-inset-bottom, 0px));
  }

  .mobile-cta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    padding: 0.65rem 0.75rem calc(0.65rem + env(safe-area-inset-bottom, 0px));
    background: rgba(243, 246, 245, 0.94);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(12px);
  }

  .mobile-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.85rem;
    border-radius: var(--radius);
    font-weight: 700;
    text-decoration: none;
  }

  .mobile-cta-msg {
    background: var(--amber);
    color: #1a1200;
  }

  .mobile-cta-msg:hover {
    background: var(--amber-hover);
    color: #1a1200;
  }

  .mobile-cta-call {
    background: var(--teal);
    color: #fff;
  }

  .mobile-cta-call:hover {
    background: var(--hero-mid);
    color: #fff;
  }

  .social-float {
    right: 0.7rem;
    bottom: calc(5.1rem + env(safe-area-inset-bottom, 0px));
    gap: 0.5rem;
  }

  .social-float-btn {
    width: 2.55rem;
    height: 2.55rem;
  }

  .social-float-btn svg {
    width: 1.35rem;
    height: 1.35rem;
  }

  .social-float-btn[aria-label="VK"] svg {
    width: 1.95rem;
    height: 1.95rem;
  }
}

@media (max-width: 600px) {
  .contacts-map {
    aspect-ratio: 4 / 3;
    min-height: 240px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .benefit-list li {
    grid-template-columns: 3rem 1fr;
  }
}

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

  .hero-bg,
  .hero-photo,
  .tariff-panel,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}