:root {
  --background: #f8f8f6;
  --foreground: #202426;
  --card: #ffffff;
  --primary: #e23b2f;
  --primary-hover: #c92f24;
  --primary-foreground: #ffffff;
  --secondary: #eef0ed;
  --muted: #e9ebe8;
  --muted-foreground: #657074;
  --border: #dfe2de;
  --dark: #24292b;
  --radius: 1rem;
  --container: 1120px;
  --font: "DM Sans", system-ui, sans-serif;
  --heading: "Space Grotesk", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.topbar {
  background: #dd0000;
  color: #fff;
  font-size: 12px;
  line-height: 1;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 40px;
  min-height: 40px;
  padding: 0;
  flex-wrap: nowrap;
}
.topbar-claim {
  flex: 1 1 auto;
  min-width: 0;
  font-weight: 700;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  flex: 0 0 auto;
  flex-wrap: nowrap;
  height: 100%;
}
.topbar a { color: #fff; }
.topbar a:hover { opacity: .9; }
.topbar-wa {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  padding: 0 12px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.35);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
  line-height: 1;
}
.topbar-wa:hover { background: rgba(255,255,255,.22); }
.topbar-link {
  display: inline-flex;
  align-items: center;
  height: 100%;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1;
}
.topbar-sep {
  width: 1px;
  height: 14px;
  background: rgba(255,255,255,.4);
  display: block;
  flex: 0 0 auto;
  align-self: center;
}
.topbar-phones {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 100%;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .01em;
  white-space: nowrap;
  line-height: 1;
}
.topbar-phones span:first-child {
  font-size: 11px;
  font-weight: 700;
  opacity: .95;
}
.lang {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 100%;
}
.lang a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.3);
}
.lang a.is-on, .lang a:hover {
  background: #fff;
  color: #dd0000;
  border-color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(223,226,222,.7);
  background: rgba(248,248,246,.95);
  backdrop-filter: blur(12px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 80px;
  position: relative;
}
.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.brand-logo {
  width: auto;
  height: 64px;
  max-width: min(243px, 42vw);
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a:hover, .nav a.is-on { color: var(--foreground); }
.nav-toggle {
  display: none;
  border: 0;
  background: var(--secondary);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--primary);
  font-size: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 14px 24px;
  font-size: 13px;
  font-weight: 700;
  transition: .2s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
}
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-dark {
  background: var(--foreground);
  color: #fff;
}
.header-cta { white-space: nowrap; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--heading);
  font-weight: 900;
  letter-spacing: -.06em;
  line-height: .98;
  font-size: clamp(32px, 5vw, 52px);
  margin: 0 0 18px;
}
.lead {
  color: var(--muted-foreground);
  max-width: 540px;
  line-height: 1.7;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(20,25,28,.94) 0%, rgba(20,25,28,.72) 37%, rgba(20,25,28,.12) 75%),
    url("/img/antislip-hero.png") center/cover;
}
.hero .container {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 620px;
  padding: 80px 0;
}
.hero-kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #e53b2d;
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--heading);
  font-weight: 900;
  letter-spacing: -.065em;
  line-height: .98;
  font-size: clamp(42px, 7vw, 72px);
  max-width: 720px;
  margin: 0 0 22px;
}
.hero h1 em {
  font-style: normal;
  color: #e53b2d;
}
.hero p {
  max-width: 520px;
  color: rgba(255,255,255,.75);
  font-size: 18px;
  line-height: 1.7;
  margin: 0 0 28px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.section { padding: 80px 0; }
.section.alt { background: var(--secondary); }
.section.dark {
  background: var(--dark);
  color: #fff;
}
.section.dark .lead { color: rgba(255,255,255,.7); }

.grid-2 {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 40px;
  align-items: end;
}
.grid-2.center { align-items: center; }
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: #fff;
  border-radius: 1.5rem;
  padding: 28px;
  border: 1px solid var(--border);
}
.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--secondary);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  font-weight: 800;
}
.stat-card h3 {
  font-family: var(--heading);
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -.04em;
}
.stat-card p {
  margin: 0;
  color: var(--muted-foreground);
  font-size: 14px;
  line-height: 1.6;
}
.stat-big {
  font-family: var(--heading);
  font-size: 56px;
  font-weight: 900;
  letter-spacing: -.06em;
  color: var(--primary);
  line-height: 1;
  margin: 0 0 8px;
}

.product-card {
  border-radius: 2rem;
  padding: 28px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
}
.product-card.tone-a { background: #e6e7e2; }
.product-card.tone-b { background: #e9eef0; }
.product-card.tone-c { background: #f0e2d8; }
.product-card.tone-d { background: #eef0ed; }
.product-number {
  font-family: var(--heading);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--muted-foreground);
  margin-bottom: 28px;
}
.product-card h3 {
  font-family: var(--heading);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -.04em;
  margin: 0 0 12px;
}
.product-card p {
  color: var(--muted-foreground);
  margin: 0 0 24px;
  flex: 1;
}
.product-card a {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.step:last-child { border-bottom: 0; }
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--heading);
  font-weight: 900;
}
.step h3 {
  margin: 0 0 6px;
  font-family: var(--heading);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.03em;
}
.step p { margin: 0; color: var(--muted-foreground); font-size: 14px; }

.logo-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: center;
}
.logo-row span {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  color: rgba(255,255,255,.55);
  padding: 18px 10px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 1rem;
}

.page-hero {
  background: var(--dark);
  color: #fff;
  padding: 72px 0 56px;
}
.page-hero h1 {
  font-family: var(--heading);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 900;
  letter-spacing: -.06em;
  margin: 10px 0 0;
}
.breadcrumb {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb .current { color: #e53b2d; }

.prose {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 36px;
}
.prose h3 {
  font-family: var(--heading);
  color: var(--primary);
  font-size: 20px;
  margin: 1.5rem 0 .6rem;
  letter-spacing: -.03em;
}
.prose p, .prose li {
  color: #3a4246;
  margin: 0 0 1rem;
}
.prose ul { padding-left: 1.2rem; }
.prose img {
  border-radius: 1rem;
  width: 100%;
  height: auto;
}
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.video-grid h4 {
  font-family: var(--heading);
  text-align: center;
  margin: 0 0 10px;
}
.ratio-16x9 {
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: 1rem;
  background: #000;
}
.ratio-16x9 iframe { width: 100%; height: 100%; border: 0; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.field {
  width: 100%;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 1rem;
  padding: 14px 16px;
  margin: 0 0 12px;
  color: var(--foreground);
}
.field:focus {
  outline: 2px solid rgba(226,59,47,.25);
  border-color: var(--primary);
}
.flash {
  background: #e8f6ec;
  color: #146c2e;
  border-radius: 1rem;
  padding: 12px 14px;
  margin-bottom: 14px;
}
.contact-boxes {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}
.contact-box {
  background: var(--secondary);
  border-radius: 1rem;
  padding: 16px;
  white-space: pre-line;
  font-size: 14px;
}
.contact-box strong {
  display: block;
  color: var(--primary);
  margin-bottom: 6px;
}

.cta-panel {
  display: grid;
  grid-template-columns: 1fr .8fr;
  gap: 40px;
  align-items: center;
}
.cta-panel .phone-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  font-weight: 800;
  font-size: 22px;
  font-family: var(--heading);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  font-size: 13px;
  color: var(--muted-foreground);
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.site-footer a:hover { color: var(--foreground); }

@media (max-width: 1100px) {
  .nav { gap: 12px; font-size: 10px; }
  .topbar-claim { font-size: 11px; }
  .topbar-phones { font-size: 12px; gap: 4px; }
  .topbar-actions { gap: 10px; }
}
@media (max-width: 980px) {
  .nav, .header-cta { display: none; }
  .nav.open {
    display: flex;
    position: absolute;
    left: 0;
    right: 0;
    top: 80px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    box-shadow: 0 16px 40px rgba(32,36,38,.08);
    z-index: 50;
  }
  .nav-toggle { display: inline-grid; place-items: center; }
  .grid-2, .grid-3, .grid-4, .form-grid, .cta-panel, .video-grid, .logo-row {
    grid-template-columns: 1fr;
  }
  .hero, .hero .container { min-height: 520px; }
  .topbar .container {
    height: auto;
    min-height: 0;
    flex-wrap: wrap;
    padding: 8px 0;
    gap: 8px;
  }
  .topbar-claim {
    flex: 1 1 100%;
    white-space: normal;
  }
  .topbar-actions {
    flex: 1 1 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
    height: auto;
    gap: 8px 12px;
  }
  .topbar-sep { display: none; }
  .topbar-phones,
  .topbar-link,
  .lang { height: auto; }
  .brand-logo { height: 48px; }
}