:root {
  --bg: #eef1f4;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --surface-dark: #12181b;
  --surface-dark-soft: rgba(18, 24, 27, 0.94);
  --text: #11161a;
  --ink: #11161a;
  --muted: #56636c;
  --line: rgba(17, 22, 26, 0.12);
  --accent: #f36b09;
  --accent-soft: #ffb169;
  --accent-deep: #c84f00;
  --teal: #203239;
  --shadow: 0 16px 34px rgba(8, 16, 20, 0.1);
  --shadow-strong: 0 30px 82px rgba(8, 16, 20, 0.16);
  --radius: 20px;
  --radius-sm: 12px;
  --max-width: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(243, 107, 9, 0.14), transparent 24rem),
    radial-gradient(circle at 85% 14%, rgba(32, 50, 57, 0.08), transparent 20rem),
    linear-gradient(180deg, #fbfcfd 0%, #edf1f4 52%, #e7ecf0 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(17, 25, 29, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 25, 29, 0.018) 1px, transparent 1px),
    linear-gradient(135deg, rgba(17, 25, 29, 0.012) 25%, transparent 25%, transparent 50%, rgba(17, 25, 29, 0.012) 50%, rgba(17, 25, 29, 0.012) 75%, transparent 75%, transparent);
  background-size: 38px 38px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 88%);
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.background-orb {
  position: fixed;
  z-index: -1;
  width: 20rem;
  height: 20rem;
  border-radius: 50%;
  filter: blur(28px);
  opacity: 0.42;
}

.orb-one {
  top: 10rem;
  right: -6rem;
  background: rgba(243, 107, 9, 0.18);
}

.orb-two {
  left: -8rem;
  bottom: 6rem;
  background: rgba(54, 88, 98, 0.1);
}

.top-rail,
.site-nav,
.hero-section,
.signal-strip,
.content-section,
.site-footer {
  width: min(var(--max-width), calc(100% - 1.5rem));
  margin: 0 auto;
}

.site-header {
  padding-top: 0.85rem;
}

.top-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(26, 31, 35, 0.98), rgba(14, 18, 21, 0.96));
  backdrop-filter: blur(16px);
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.top-rail a {
  color: #fff;
  font-weight: 700;
}

.site-nav {
  position: sticky;
  top: 0.8rem;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 249, 251, 0.9));
  backdrop-filter: blur(18px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 12px 40px rgba(17, 25, 29, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 1 auto;
  text-decoration: none;
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-style: italic;
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 1;
  white-space: nowrap;
}

.brand-mylar,
.brand-dotcom {
  color: var(--ink);
}

.brand-duct {
  color: var(--accent);
}

.brand-dotcom {
  font-size: 0.7em;
  font-style: normal;
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-left: 0.06em;
}

.nav-links,
.footer-actions {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.nav-links a:not(.button) {
  color: var(--muted);
  font-size: 0.95rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.82rem 1.3rem;
  border: 1px solid transparent;
  border-radius: 10px;
  transition:
    transform 0.25s ease,
    background-color 0.25s ease,
    border-color 0.25s ease,
    color 0.25s ease,
    box-shadow 0.25s ease;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-deep) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 16px 30px rgba(200, 79, 0, 0.2);
}

.button-primary:hover {
  background: linear-gradient(135deg, var(--accent-deep) 0%, var(--accent) 100%);
}

.button-secondary,
.button-ghost {
  border-color: rgba(17, 25, 29, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(248, 250, 252, 0.74));
  color: var(--text);
}

.button-secondary:hover,
.button-ghost:hover {
  border-color: rgba(225, 138, 40, 0.5);
  background: rgba(255, 255, 255, 0.8);
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 2rem;
  padding: 4.5rem 0 2.2rem;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.eyebrow {
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
.thank-you-card h1 {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.92;
  text-transform: uppercase;
}

h1 {
  max-width: 10ch;
  font-size: clamp(4rem, 9vw, 7rem);
}

.lede {
  max-width: 38rem;
  color: #273138;
  font-size: 1.15rem;
  line-height: 1.45;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 0.4rem;
}

.hero-lanes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.55rem;
}

.hero-lanes span {
  padding: 0.65rem 0.9rem;
  border: 1px solid rgba(21, 28, 32, 0.14);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 248, 250, 0.88));
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.signal-chip,
.info-card,
.offer-card,
.advantage-panel,
.timeline-step,
.faq-list details,
.order-form,
.order-intro,
.thank-you-card {
  border: 1px solid rgba(255, 255, 255, 0.62);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    var(--shadow);
}

.hero-visual {
  position: relative;
}

.duct-illustration {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 3 / 2;
  padding: 0.9rem;
  border-radius: 22px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(248, 250, 252, 0.96));
  box-shadow: var(--shadow-strong);
}

.duct-photo {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  filter: none;
}

.duct-illustration::before {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(19, 25, 28, 0.08);
  border-radius: 16px;
}

.duct-illustration::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(19, 25, 28, 0.04));
  pointer-events: none;
}

.signal-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  padding-bottom: 2rem;
}

.signal-chip {
  padding: 0.95rem 1.15rem;
  border-radius: 8px;
  color: #f6f8fa;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(22, 28, 32, 0.96), rgba(15, 20, 24, 0.92));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 10px 18px rgba(7, 15, 18, 0.14);
}

.content-section {
  padding: 2.2rem 0;
}

.section-head {
  max-width: 45rem;
  margin-bottom: 1.4rem;
}

.compact-head {
  margin-top: 0.6rem;
}

.split-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  max-width: none;
}

h2 {
  font-size: clamp(2.8rem, 4vw, 4.6rem);
}

.support-copy,
.text-link,
.contact-note,
.footer-meta,
.site-footer p,
.form-note {
  color: var(--muted);
}

.text-link {
  font-weight: 700;
}

.size-grid,
.spec-grid,
.offer-grid,
.advantage-layout,
.timeline {
  display: grid;
  gap: 1rem;
}

.size-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 1.5rem;
}

.spec-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.size-card,
.info-card,
.offer-card,
.advantage-panel,
.timeline-step {
  padding: 1.45rem;
  border-radius: var(--radius);
}

.size-card {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.58);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 249, 251, 0.86));
  backdrop-filter: blur(18px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.58),
    var(--shadow);
  position: relative;
  overflow: hidden;
}

.size-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: linear-gradient(180deg, var(--accent-deep), var(--accent));
  opacity: 0.92;
}

.size-card-featured {
  background: linear-gradient(180deg, rgba(255, 245, 235, 0.98), rgba(255, 251, 247, 0.9));
  border-color: rgba(200, 79, 0, 0.18);
}

.size-badge {
  position: absolute;
  top: 0.95rem;
  right: 0.95rem;
  padding: 0.3rem 0.5rem;
  border-radius: 999px;
  background: rgba(18, 24, 27, 0.92);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.size-label {
  display: inline-flex;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.size-visual {
  min-height: 7.5rem;
  border-radius: 10px;
  background:
    linear-gradient(145deg, rgba(243, 245, 247, 0.98), rgba(226, 232, 237, 0.9)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
  position: relative;
  overflow: hidden;
}

.size-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(17, 25, 29, 0.024) 0 8px, transparent 8px 18px);
  opacity: 0.35;
}

.size-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  position: absolute;
  inset: 0;
  filter: saturate(0.92) contrast(1.02);
}

.size-card p {
  color: var(--muted);
  line-height: 1.5;
}

.size-details {
  display: grid;
  gap: 0.3rem;
}

.size-spec {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.size-price {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.size-pack {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.4;
}

.size-status {
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.size-button {
  margin-top: auto;
}

.card-index,
.offer-label,
.timeline-step span {
  display: inline-flex;
  margin-bottom: 0.9rem;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.info-card h3,
.offer-card h3,
.advantage-panel h3,
.timeline-step h3 {
  margin-bottom: 0.7rem;
  font-size: 1.34rem;
}

.info-card p,
.offer-card p,
.advantage-panel p,
.timeline-step p,
.faq-list p,
.order-intro p,
.site-footer p {
  color: var(--muted);
  line-height: 1.7;
}

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

.offer-card {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.offer-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
  line-height: 1.8;
}

.offer-card.featured {
  background: linear-gradient(180deg, rgba(255, 240, 219, 0.98), rgba(255, 249, 240, 0.88));
  border-color: rgba(168, 80, 5, 0.2);
}

.card-button {
  margin-top: auto;
}

.advantage-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.faq-list {
  display: grid;
  gap: 0.85rem;
}

.faq-list details {
  padding: 1.25rem 1.3rem;
  border-radius: 10px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin-top: 0.8rem;
}

.order-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1rem;
}

.order-intro,
.order-form {
  padding: 1.5rem;
  border-radius: 14px;
}

.contact-stack {
  margin: 1.4rem 0;
}

.contact-pill {
  display: inline-flex;
  margin-bottom: 0.55rem;
  padding: 0.82rem 1rem;
  border-radius: 10px;
  background: rgba(17, 25, 29, 0.94);
  color: #fff;
  font-weight: 700;
}

.order-points {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.order-points p {
  padding: 0.95rem 1rem;
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(241, 244, 239, 0.64));
  border: 1px solid rgba(17, 25, 29, 0.08);
}

.hidden-field {
  position: absolute;
  left: -9999px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.order-form label {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 500;
}

.order-form input,
.order-form select,
.order-form textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(17, 25, 29, 0.12);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 247, 242, 0.94));
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.order-form input:focus,
.order-form select:focus,
.order-form textarea:focus {
  outline: none;
  border-color: rgba(225, 138, 40, 0.75);
  box-shadow: 0 0 0 3px rgba(225, 138, 40, 0.14);
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 1rem;
  align-items: center;
  padding: 2rem 0 3rem;
}

.footer-actions a {
  font-weight: 700;
}

.thank-you-body {
  display: grid;
  place-items: center;
  padding: 2rem;
}

.thank-you-card {
  width: min(42rem, 100%);
  padding: 2rem;
  border-radius: 18px;
}

.thank-you-card h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.8rem, 6vw, 4.6rem);
}

.thank-you-card p {
  margin-bottom: 1rem;
  color: var(--muted);
  line-height: 1.8;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

@media (max-width: 1080px) {
  .hero-section,
  .order-layout,
  .size-grid,
  .offer-grid,
  .spec-grid,
  .timeline,
  .advantage-layout {
    grid-template-columns: 1fr;
  }

  .split-head,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: start;
  }
}

@media (max-width: 860px) {
  .top-rail,
  .site-nav,
  .nav-links,
  .hero-actions,
  .footer-actions,
  .form-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    position: static;
  }

  .nav-links {
    gap: 0.8rem;
  }

  .brand {
    justify-content: center;
  }

  .brand-wordmark {
    font-size: min(2.2rem, 11vw);
  }

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

  .form-footer {
    align-items: stretch;
  }
}

@media (max-width: 620px) {
  body::before {
    background-size: 28px 28px;
  }

  .top-rail,
  .site-nav,
  .signal-chip,
  .info-card,
  .offer-card,
  .advantage-panel,
  .timeline-step,
  .faq-list details,
  .order-intro,
  .order-form,
  .thank-you-card {
    border-radius: 16px;
  }

  .hero-section {
    padding-top: 3rem;
  }

  .duct-illustration {
    padding: 0.55rem;
  }
}