:root {
  --bg: #07151f;
  --bg-soft: #0c2030;
  --panel: #10283a;
  --panel-2: #15354b;
  --line: rgba(133, 220, 255, 0.18);
  --text: #f3fbff;
  --muted: #9db4c3;
  --accent: #38d5ff;
  --accent-2: #7cf7c1;
  --pink: #ff6fae;
  --ink: #031018;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(56, 213, 255, 0.16), transparent 30%),
    radial-gradient(circle at 90% 0%, rgba(124, 247, 193, 0.13), transparent 28%),
    var(--bg);
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 max(28px, calc((100vw - 1180px) / 2));
  background: rgba(5, 16, 24, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  color: var(--text);
  font-size: 23px;
  font-weight: 950;
  letter-spacing: 0;
  white-space: nowrap;
}
.brand-mark {
  width: 38px;
  height: 38px;
  margin-right: 8px;
  flex: 0 0 38px;
  border-radius: 10px;
  box-shadow: 0 7px 22px rgba(56, 213, 255, 0.2);
}
.brand span {
  color: transparent;
  background: linear-gradient(135deg, #38d5ff 10%, #7cf7c1 88%);
  -webkit-background-clip: text;
  background-clip: text;
  text-shadow: 0 0 24px rgba(56, 213, 255, 0.22);
}
.brand strong {
  color: #f8fcff;
  font-weight: 950;
}
.brand em {
  margin-left: 2px;
  color: var(--accent-2);
  font-style: normal;
  font-weight: 950;
}
.nav-links { display: flex; align-items: center; gap: 24px; color: var(--muted); font-weight: 800; font-size: 14px; }
.nav-links a:hover { color: var(--accent); }
.cart-button {
  position: relative;
  min-height: 38px;
  padding: 0 18px;
  color: var(--text);
  background: rgba(56, 213, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 900;
}
.cart-button span {
  position: absolute;
  top: -10px;
  right: -8px;
  display: grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  color: var(--ink);
  background: var(--accent-2);
  border-radius: 999px;
  font-size: 12px;
}
.menu-button { display: none; width: 42px; height: 40px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
.menu-button span { display: block; height: 2px; margin: 5px 8px; background: var(--text); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 44px;
  align-items: center;
  max-width: 1180px;
  min-height: 690px;
  margin: 0 auto;
  padding: 74px 28px 58px;
}
.pill {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 22px;
  padding: 10px 16px;
  color: var(--accent-2);
  background: rgba(124, 247, 193, 0.1);
  border: 1px solid rgba(124, 247, 193, 0.24);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 740px;
  margin-bottom: 24px;
  font-size: clamp(48px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}
.hero-copy > p:not(.pill) {
  max-width: 650px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 950;
}
.button.primary { color: var(--ink); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.button.secondary { color: var(--text); background: rgba(255,255,255,0.04); border-color: var(--line); }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 38px;
}
.hero-stats div, .hero-panel article {
  padding: 18px;
  background: rgba(16, 40, 58, 0.78);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.hero-stats strong { display: block; color: var(--accent); font-size: 24px; }
.hero-stats span, .hero-panel span { color: var(--muted); font-size: 13px; }
.hero-panel {
  display: grid;
  gap: 16px;
  padding: 22px;
  background: linear-gradient(180deg, rgba(56,213,255,0.12), rgba(124,247,193,0.05));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
}
.hero-panel article strong { display: block; margin-top: 10px; color: var(--text); font-size: 28px; }

.provider-strip, .catalog-section, .use-cases, .ai-section, .why-section, .testimonials, .faq-section, .cta-section, .provider-articles {
  padding: 78px max(28px, calc((100vw - 1180px) / 2));
}
.provider-strip { background: #06121b; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.provider-strip > p { color: var(--muted); }
.provider-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
  text-align: left;
}
.provider-grid a, .case-grid article, .feature-grid article, .quote-grid blockquote, details {
  padding: 22px;
  background: rgba(16, 40, 58, 0.72);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.provider-grid span { display: block; margin-top: 8px; color: var(--accent); font-size: 13px; }

.section-heading { max-width: 720px; margin: 0 auto 34px; text-align: center; }
.section-heading p, .eyebrow { color: var(--accent-2); font-weight: 950; letter-spacing: 0.16em; text-transform: uppercase; font-size: 12px; }
.section-heading h2, .ai-section h2, .cta-section h2 { margin-bottom: 16px; font-size: clamp(34px, 5vw, 54px); line-height: 1.05; }
.section-heading span, .case-grid p, .feature-grid p, .ai-section p, .faq-list p, .cta-section p, .site-footer p { color: var(--muted); line-height: 1.65; }
.search-box {
  display: block;
  width: min(760px, 100%);
  min-height: 54px;
  margin: 0 auto 22px;
  padding: 0 20px;
  color: #fff;
  background: #071923;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.product-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.tab {
  min-height: 40px;
  padding: 0 16px;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 900;
}
.tab.active, .tab:hover { color: var(--ink); background: var(--accent); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 390px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.product-link {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
}
.product-card > *:not(.product-link) {
  position: relative;
  z-index: 2;
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 213, 255, 0.42);
  box-shadow: 0 20px 65px rgba(0, 0, 0, 0.25);
}
.product-card.hot { box-shadow: 0 0 0 1px rgba(124,247,193,0.3), 0 22px 60px rgba(0,0,0,0.22); }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.card-top span { display: grid; place-items: center; width: 48px; height: 48px; background: #092331; border: 1px solid var(--line); border-radius: 14px; font-weight: 950; }
.card-top b { color: var(--pink); font-size: 12px; text-transform: uppercase; }
.product-card h3 { margin-bottom: 8px; font-size: 20px; }
.product-card p { color: var(--muted); }
.price { display: flex; gap: 12px; align-items: baseline; margin: 16px 0 20px; }
.price strong { color: var(--accent-2); font-size: 32px; }
.price em { color: var(--muted); font-style: normal; }
.product-card ul { display: grid; gap: 12px; padding: 0; margin: 0 0 22px; color: #c6d6df; list-style: none; }
.product-card li::before { content: "OK"; margin-right: 8px; color: var(--accent-2); font-weight: 950; }
.add-cart { margin-top: auto; min-height: 46px; color: var(--accent); background: rgba(56,213,255,0.08); border: 1px solid rgba(56,213,255,0.35); border-radius: 999px; cursor: pointer; font-weight: 950; }
.add-cart:hover { color: var(--ink); background: var(--accent); }
.product-card[hidden] { display: none; }

.case-grid, .feature-grid, .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-grid h3, .feature-grid h3 { margin-bottom: 10px; }
.case-grid a { color: var(--accent); font-weight: 950; }
.ai-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: 34px;
  align-items: center;
  background: linear-gradient(135deg, rgba(56,213,255,0.08), rgba(124,247,193,0.06));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.ai-section li { margin-bottom: 10px; color: #c6d6df; }
.cost-card { padding: 26px; background: #071923; border: 1px solid var(--line); border-radius: 24px; }
.cost-card span { color: var(--muted); }
.cost-card div { display: flex; justify-content: space-between; gap: 16px; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); }
.cost-card em { color: var(--muted); font-style: normal; }
.cost-card strong { color: var(--accent-2); font-size: 24px; }
.quote-grid blockquote { margin: 0; color: #dcebf2; line-height: 1.65; }
.quote-grid span { display: block; margin-top: 18px; color: var(--accent); font-weight: 950; }
.faq-list { display: grid; gap: 12px; max-width: 850px; margin: 0 auto; }
summary { cursor: pointer; font-weight: 950; }
details p { margin: 14px 0 0; }
.cta-section { text-align: center; background: #06121b; }
.cta-section .hero-actions { justify-content: center; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 30px auto;
  max-width: 980px;
  text-align: left;
}
.contact-card {
  display: grid;
  gap: 10px;
  width: 100%;
  min-height: 132px;
  padding: 22px;
  color: var(--text);
  background: rgba(16, 40, 58, 0.72);
  border: 1px solid var(--line);
  border-radius: 20px;
  cursor: pointer;
}
.contact-card strong {
  font-size: 20px;
}
.contact-card span,
.payment-panel p,
.payment-help {
  color: var(--muted);
  line-height: 1.6;
}
.tg-card { border-color: rgba(42, 168, 232, 0.45); }
.wa-card { border-color: rgba(37, 211, 102, 0.45); }
.chat-card { border-color: rgba(124, 247, 193, 0.4); }
.payment-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  max-width: 980px;
  margin: 0 auto 28px;
  padding: 24px;
  text-align: left;
  background: rgba(4, 17, 25, 0.66);
  border: 1px solid var(--line);
  border-radius: 22px;
}
.payment-panel h3 {
  margin: 8px 0 10px;
  font-size: 28px;
}
.payment-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.payment-contact {
  min-height: 40px;
  padding: 0 14px;
  color: var(--text);
  background: rgba(56, 213, 255, 0.08);
  border: 1px solid rgba(56, 213, 255, 0.28);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 950;
}
.payment-contact:hover {
  color: var(--ink);
  background: var(--accent-2);
  border-color: transparent;
}

.product-detail {
  max-width: 1180px;
  margin: 0 auto;
  padding: 70px 28px;
}
.provider-page-hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 70px 28px 34px;
}
.provider-page-hero h1 {
  max-width: 760px;
  margin: 18px 0;
  font-size: clamp(44px, 7vw, 76px);
}
.provider-page-hero > p:not(.pill) {
  max-width: 690px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}
.provider-catalog {
  padding-top: 34px;
}
.provider-articles {
  display: grid;
  gap: 24px;
  background: #06121b;
  border-top: 1px solid var(--line);
}
.provider-copy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.provider-copy-grid article,
.provider-steps,
.provider-faq details {
  padding: 24px;
  background: rgba(16, 40, 58, 0.72);
  border: 1px solid var(--line);
  border-radius: 20px;
}
.provider-copy-grid h2,
.provider-steps h2 {
  margin: 8px 0 12px;
  font-size: 24px;
}
.provider-copy-grid p:not(.eyebrow),
.provider-steps p,
.provider-steps span,
.provider-faq p {
  color: var(--muted);
  line-height: 1.65;
}
.provider-steps {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}
.provider-steps ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.provider-steps li {
  padding: 18px;
  background: rgba(4, 17, 25, 0.58);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.provider-steps strong,
.provider-steps span {
  display: block;
}
.provider-steps strong {
  margin-bottom: 8px;
  color: var(--text);
}
.provider-faq {
  display: grid;
  gap: 12px;
}
.back-link {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--accent);
  font-weight: 950;
}
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 28px;
  align-items: stretch;
}
.detail-main,
.detail-card,
.detail-info article {
  padding: 30px;
  background: rgba(16, 40, 58, 0.76);
  border: 1px solid var(--line);
  border-radius: 24px;
}
.detail-main h1 {
  margin: 12px 0 18px;
  font-size: clamp(44px, 7vw, 72px);
}
.detail-main p {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.detail-card {
  display: flex;
  flex-direction: column;
}
.detail-label {
  color: var(--muted);
  font-weight: 900;
}
.detail-card > strong {
  margin-top: 12px;
  color: var(--accent-2);
  font-size: 56px;
  line-height: 1;
}
.detail-card > em {
  color: var(--muted);
  font-style: normal;
}
.detail-card ul {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}
.detail-card li {
  color: #d6e7ee;
}
.detail-card li::before {
  content: "OK";
  margin-right: 8px;
  color: var(--accent-2);
  font-weight: 950;
}
.detail-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 78px;
}
.detail-info p {
  color: var(--muted);
  line-height: 1.65;
}

.product-buy-page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 70px 28px;
}
.buy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 410px);
  gap: 28px;
  align-items: start;
}
.buy-main,
.purchase-card,
.related-products,
.buy-section {
  background: rgba(16, 40, 58, 0.76);
  border: 1px solid var(--line);
  border-radius: 24px;
}
.buy-main {
  padding: 32px;
}
.buy-main h1 {
  margin: 16px 0;
  font-size: clamp(44px, 7vw, 76px);
}
.buy-subtitle,
.buy-section p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0;
}
.trust-row span {
  padding: 10px 14px;
  color: var(--accent-2);
  background: rgba(124, 247, 193, 0.08);
  border: 1px solid rgba(124, 247, 193, 0.22);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
}
.buy-section {
  margin-top: 18px;
  padding: 22px;
}
.buy-section h2 {
  margin-bottom: 14px;
}
.detail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.detail-list li {
  color: #d6e7ee;
}
.detail-list li::before {
  content: "OK";
  margin-right: 8px;
  color: var(--accent-2);
  font-weight: 950;
}
.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.timeline div {
  padding: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.timeline b {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  color: var(--ink);
  background: var(--accent);
  border-radius: 50%;
}
.timeline span {
  color: var(--muted);
}
.purchase-card {
  position: sticky;
  top: 92px;
  padding: 26px;
}
.provider-badge {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
  color: var(--text);
  background: #092331;
  border: 1px solid var(--line);
  border-radius: 18px;
  font-size: 22px;
  font-weight: 950;
}
.purchase-card p,
.payment-note span {
  color: var(--muted);
}
.purchase-price {
  margin: 22px 0;
}
.purchase-price strong {
  color: var(--accent-2);
  font-size: 54px;
  line-height: 1;
}
.purchase-price span {
  margin-left: 8px;
  color: var(--muted);
}
.purchase-card .button {
  width: 100%;
  margin-top: 12px;
}
.payment-note {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.payment-note strong {
  color: var(--accent);
}
.related-products {
  max-width: 1180px;
  margin: 0 auto 78px;
  padding: 28px;
}
.mini-product-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.mini-product-row a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.mini-product-row strong {
  color: var(--accent-2);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 28px;
  padding: 48px max(28px, calc((100vw - 1180px) / 2));
  background: #040d13;
  border-top: 1px solid var(--line);
}
.site-footer nav { display: grid; gap: 10px; color: var(--muted); }
.site-footer strong { color: var(--text); }

.cart-drawer, .checkout-modal { position: fixed; inset: 0; z-index: 50; background: rgba(1, 8, 12, 0.76); backdrop-filter: blur(8px); }
.cart-drawer[hidden], .checkout-modal[hidden], .chat-box[hidden] { display: none; }
.drawer-panel { width: min(420px, calc(100vw - 20px)); height: 100%; margin-left: auto; padding: 26px; background: #071923; border-left: 1px solid var(--line); }
.drawer-header { display: flex; justify-content: space-between; align-items: center; }
.drawer-header button, .checkout-card > button, .chat-head button { color: var(--text); background: transparent; border: 0; cursor: pointer; font-size: 20px; }
.cart-items { display: grid; gap: 12px; min-height: 180px; color: var(--muted); }
.cart-line { display: flex; justify-content: space-between; gap: 16px; padding: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.cart-total { display: flex; justify-content: space-between; margin: 20px 0; padding-top: 16px; border-top: 1px solid var(--line); }
.cart-total strong, .checkout-summary strong { color: var(--accent-2); }
.checkout-button { width: 100%; }
.checkout-modal { display: grid; place-items: center; padding: 18px; }
.checkout-card { width: min(620px, 100%); max-height: calc(100vh - 36px); overflow: auto; padding: 26px; background: #071923; border: 1px solid var(--line); border-radius: 22px; }
.checkout-card > button { float: right; }
.checkout-summary { display: flex; justify-content: space-between; margin: 16px 0; padding: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.checkout-card label { display: grid; gap: 8px; margin-bottom: 14px; color: var(--muted); font-weight: 800; }
.checkout-card input, .chat-input input { min-height: 44px; padding: 0 14px; color: #fff; background: #04121a; border: 1px solid var(--line); border-radius: 12px; }
.confirm-row { grid-template-columns: 20px 1fr; align-items: start; }
.confirm-row input { min-height: auto; margin-top: 4px; }
.coins { margin: 16px 0; color: var(--accent); font-weight: 950; word-spacing: 10px; }
.checkout-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}
.checkout-actions .button {
  width: 100%;
}
.floating-left { position: fixed; left: 20px; bottom: 24px; z-index: 40; display: grid; gap: 12px; }
.float-btn, .chat-bubble { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; color: #fff; font-weight: 950; }
.tg { background: #2aa8e8; }
.wa { background: #25d366; }
.chat-bubble { position: fixed; right: 20px; bottom: 24px; z-index: 40; color: var(--ink); background: var(--accent-2); border: 0; cursor: pointer; }
.chat-box { position: fixed; right: 20px; bottom: 90px; z-index: 45; width: min(360px, calc(100vw - 28px)); padding: 18px; background: #071923; border: 1px solid var(--line); border-radius: 18px; }
.chat-head { display: flex; align-items: center; gap: 10px; }
.chat-head strong { display: grid; place-items: center; width: 38px; height: 38px; color: var(--ink); background: var(--accent-2); border-radius: 50%; }
.chat-head button { margin-left: auto; }
.chat-box p { color: var(--muted); }
.chat-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0;
}
.mini-contact {
  display: grid;
  place-items: center;
  min-height: 40px;
  border-radius: 12px;
  font-weight: 950;
}
.chat-input { display: flex; gap: 8px; }
.chat-input input { min-width: 0; flex: 1; }
.chat-input button { padding: 0 14px; color: var(--ink); background: var(--accent); border: 0; border-radius: 12px; font-weight: 950; }

@media (max-width: 980px) {
  .hero, .ai-section, .site-footer, .detail-grid, .detail-info, .buy-layout, .mini-product-row, .contact-grid, .payment-panel { grid-template-columns: 1fr; }
  .product-grid, .provider-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid, .feature-grid, .quote-grid, .provider-copy-grid, .provider-steps, .provider-steps ol { grid-template-columns: 1fr; }
  .purchase-card { position: static; }
}
@media (max-width: 720px) {
  .brand { font-size: 19px; }
  .brand-mark { width: 34px; height: 34px; flex-basis: 34px; margin-right: 6px; }
  .menu-button { display: block; }
  .nav-links { position: absolute; top: 72px; right: 18px; left: 18px; display: none; flex-direction: column; align-items: stretch; padding: 18px; background: #071923; border: 1px solid var(--line); border-radius: 18px; }
  .nav-links.open { display: flex; }
  .cart-button { width: 100%; }
  .hero { min-height: 0; padding-top: 48px; }
  .hero-stats, .product-grid, .provider-grid { grid-template-columns: 1fr; }
  .detail-list, .timeline { grid-template-columns: 1fr; }
  h1 { font-size: 44px; }
  .button { width: 100%; }
}
@media (max-width: 420px) {
  .site-header { padding-inline: 18px; }
  .brand { font-size: 17px; }
  .brand-mark { width: 31px; height: 31px; flex-basis: 31px; }
}