:root {
  --bg: #f3f4f7;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-solid: #ffffff;
  --text: #181c22;
  --muted: #636c77;
  --line: rgba(24, 28, 34, 0.1);
  --accent: #c96f27;
  --accent-strong: #e58a3d;
  --dark: #10141a;
  --dark-soft: #171d25;
  --dark-text: #ebedf0;
  --shadow: 0 24px 60px rgba(16, 20, 26, 0.14);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1160px, calc(100% - 32px));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(201, 111, 39, 0.08), transparent 24%),
    linear-gradient(180deg, #f7f7f8 0%, var(--bg) 100%);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(243, 244, 247, 0.8);
  border-bottom: 1px solid rgba(24, 28, 34, 0.06);
}

.header-inner,
.footer-inner,
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-inner {
  min-height: 74px;
  gap: 24px;
}

.brand {
  font-family: "Montserrat", sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand span {
  background: linear-gradient(135deg, var(--accent) 0%, #ffb165 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 1rem;
}

.site-nav a {
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.footer-contact a:hover,
.card-footer a:hover {
  color: var(--accent);
}

.header-phone,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background-color 0.2s ease,
    color 0.2s ease;
}

.header-phone,
.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 18px 35px rgba(201, 111, 39, 0.25);
}

.button-secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
}

.button-light {
  color: var(--text);
  background: #fff;
}

.header-phone:hover,
.button:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(24, 28, 34, 0.06);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-overlay {
  background: linear-gradient(135deg, rgba(16, 20, 26, 0.9), rgba(16, 20, 26, 0.45));
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 120px 0 80px;
}

.hero-copy {
  max-width: 700px;
  color: var(--dark-text);
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.eyebrow {
  background: rgba(201, 111, 39, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero h1,
.section-heading h2,
.promo h2 {
  margin: 0;
  font-family: "Montserrat", sans-serif;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.8rem);
  line-height: 0.98;
}

.hero h1 span {
  display: inline-block;
  color: #ffb165;
}

.hero-text {
  max-width: 600px;
  margin: 22px 0 0;
  font-size: clamp(1.1rem, 2.3vw, 1.45rem);
  color: rgba(235, 237, 240, 0.76);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 38px;
}

.scroll-down {
  position: absolute;
  left: 50%;
  bottom: 36px;
  width: 30px;
  height: 52px;
  margin-left: -15px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
}

.scroll-down::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 12px;
  width: 6px;
  height: 12px;
  margin-left: -3px;
  border-radius: 999px;
  background: #fff;
  animation: wheel 1.8s infinite;
}

.section {
  padding: 110px 0;
}

.section-light {
  background: transparent;
}

.section-dark {
  background:
    radial-gradient(circle at top right, rgba(201, 111, 39, 0.16), transparent 24%),
    linear-gradient(180deg, var(--dark-soft), var(--dark));
  color: var(--dark-text);
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-kicker {
  color: var(--accent);
  background: rgba(201, 111, 39, 0.12);
}

.section-kicker-light {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.12);
}

.section-heading h2,
.promo h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.section-heading p,
.promo-copy p,
.benefit p,
.offer p,
.site-footer p,
.site-footer span,
.card-body p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
}

.section-dark .section-heading p,
.section-dark .benefit p,
.promo-copy p {
  color: rgba(235, 237, 240, 0.72);
}

.product-grid,
.benefits-grid,
.offer-grid {
  display: grid;
  gap: 24px;
}

.product-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 32px 70px rgba(16, 20, 26, 0.18);
}

.card-media {
  position: relative;
  aspect-ratio: 1 / 0.82;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.card:hover .card-media img {
  transform: scale(1.05);
}

.card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
}

.card-body {
  padding: 24px;
}

.card-body h3,
.benefit h3 {
  margin: 0 0 12px;
  font-family: "Montserrat", sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
}

.card-body p {
  margin: 0 0 20px;
  font-size: 1rem;
}

.card-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.price-block {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-block strong {
  font-family: "Montserrat", sans-serif;
  font-size: 2rem;
  font-weight: 900;
}

.card-footer a {
  font-weight: 700;
  color: var(--accent);
}

.benefits-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.benefit {
  text-align: center;
}

.benefit-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background: rgba(201, 111, 39, 0.16);
}

.benefit-icon svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: var(--accent-strong);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.promo {
  padding: clamp(32px, 5vw, 60px);
  border-radius: 36px;
  color: #fff;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.16), transparent 30%),
    linear-gradient(135deg, var(--accent) 0%, #804115 100%);
  box-shadow: 0 30px 80px rgba(201, 111, 39, 0.24);
}

.promo-copy {
  max-width: 720px;
  margin-bottom: 34px;
}

.offer-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 34px;
}

.offer {
  padding: 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.offer strong {
  display: block;
  margin-bottom: 10px;
  font-family: "Montserrat", sans-serif;
  font-size: 1.08rem;
}

.site-footer {
  background: #0e1218;
  color: var(--dark-text);
  padding: 48px 0 28px;
}

.brand-footer {
  display: inline-block;
  margin-bottom: 10px;
}

.site-footer p,
.site-footer span {
  margin: 0;
  color: rgba(235, 237, 240, 0.6);
}

.footer-contact {
  text-align: right;
}

.footer-contact a {
  display: inline-block;
  margin-top: 8px;
  font-family: "Montserrat", sans-serif;
  font-size: 1.9rem;
  font-weight: 800;
  color: #ffb165;
}

.footer-bottom {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

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

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

.reveal-delay-4 {
  transition-delay: 0.32s;
}

@keyframes wheel {
  0% {
    opacity: 0;
    transform: translate(-50%, 0);
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, 16px);
  }
}

@media (max-width: 1080px) {
  .product-grid,
  .benefits-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .offer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: grid;
    gap: 0;
    padding: 10px;
    border-radius: 22px;
    background: rgba(243, 244, 247, 0.98);
    border: 1px solid rgba(24, 28, 34, 0.08);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition:
      opacity 0.2s ease,
      transform 0.2s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px 16px;
    border-radius: 16px;
  }

  .site-nav a:hover {
    background: rgba(24, 28, 34, 0.04);
  }

  .header-phone {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding: 130px 0 90px;
  }
}

@media (max-width: 640px) {
  .header-inner,
  .footer-inner,
  .footer-bottom,
  .card-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions,
  .button,
  .button-secondary,
  .button-light {
    width: 100%;
  }

  .product-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 84px 0;
  }

  .card-body,
  .offer {
    padding: 20px;
  }

  .footer-contact {
    text-align: left;
  }

  .footer-contact a {
    font-size: 1.6rem;
  }
}