@font-face {font-family: Inter; font-style: normal; font-weight: 300; font-display: swap; src: url("assets/fonts/inter-300.woff2") format("woff2");}
@font-face {font-family: Inter; font-style: normal; font-weight: 400; font-display: swap; src: url("assets/fonts/inter-400.woff2") format("woff2");}
@font-face {font-family: Inter; font-style: normal; font-weight: 500; font-display: swap; src: url("assets/fonts/inter-500.woff2") format("woff2");}
@font-face {font-family: Inter; font-style: normal; font-weight: 600; font-display: swap; src: url("assets/fonts/inter-600.woff2") format("woff2");}
@font-face {font-family: Inter; font-style: normal; font-weight: 700; font-display: swap; src: url("assets/fonts/inter-700.woff2") format("woff2");}
/* =========================================================
   ZoneGuard Plus — HYBRID
   Emotional hero + visual problem + engineering thesis +
   category comparison + clean offer.
   Premium minimalism with controlled visual richness.
   ========================================================= */

:root {
  --c-bg:        #ffffff;
  --c-bg-soft:   #fafaf8;
  --c-bg-cream:  #f5f3ee;
  --c-ink:       #0a0a0a;
  --c-ink-soft:  #1a1a1a;
  --c-muted:     #6b6b6b;
  --c-muted-soft:#8a8a87;
  --c-line:      #e8e8e6;
  --c-line-soft: #f0f0ee;
  --c-gold:      #ecb318;
  --c-gold-deep: #d49a06;
  --c-navy:      #0a0e1a;
  --c-ink-deep:  #050608;

  --shadow-sm:   0 1px 2px rgba(10,10,10,0.04);
  --shadow-md:   0 8px 24px rgba(10,10,10,0.06);
  --shadow-lg:   0 24px 60px rgba(10,10,10,0.10);
  --shadow-prod: 0 30px 80px rgba(10,10,10,0.14);

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   18px;

  --t-ease:      cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast:      180ms var(--t-ease);
  --t-base:      300ms var(--t-ease);

  --container:        1200px;
  --container-narrow: 780px;

  --pad-section:  140px;
  --pad-section-tight: 110px;
}

/* ---------- reset ---------- */

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, picture, source { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; margin: 0; }
button { font: inherit; cursor: pointer; }
::selection { background: var(--c-ink); color: var(--c-bg); }

/* ---------- containers ---------- */

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.container-narrow { max-width: var(--container-narrow); }

/* ---------- typography ---------- */

.display {
  font-size: clamp(44px, 6.4vw, 80px);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.035em;
  margin: 0 0 28px;
  color: var(--c-ink);
}

.display-soft {
  font-weight: 300;
  color: var(--c-muted);
  letter-spacing: -0.03em;
}

.display-cta {
  font-size: clamp(40px, 5.5vw, 68px);
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 28px;
  text-align: center;
}

.h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--c-ink);
  margin: 0 0 24px;
}

.h2-tight { margin-bottom: 0; }

.h2-soft {
  font-weight: 300;
  color: var(--c-muted);
}

.eyebrow,
.section-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin: 0 0 20px;
}

.lede {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.55;
  font-weight: 400;
  color: var(--c-ink-soft);
  max-width: 560px;
  margin: 0 0 36px;
}

.prose {
  font-size: 18px;
  line-height: 1.7;
  color: var(--c-ink-soft);
  margin: 0 0 24px;
}

.prose-bold {
  font-weight: 500;
  color: var(--c-ink);
}

.section-head {
  max-width: 760px;
  margin: 0 auto 80px;
  text-align: center;
}

.section-head-left {
  text-align: left;
  margin: 0 0 64px;
  max-width: 880px;
}

.section-sub {
  font-size: 18px;
  line-height: 1.6;
  color: var(--c-muted);
  margin: 0 auto;
  max-width: 600px;
}

.section-head-left .section-sub { margin: 0; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: all var(--t-base);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-gold), var(--c-gold-deep));
  color: var(--c-ink);
  box-shadow: 0 6px 20px rgba(236, 179, 24, 0.32);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(236, 179, 24, 0.42);
}

.btn-ghost {
  background: transparent;
  color: var(--c-ink);
  border: 1px solid var(--c-line);
}

.btn-ghost:hover {
  border-color: var(--c-ink);
  background: var(--c-bg-soft);
}

.btn-sm  { padding: 11px 20px; font-size: 14px; }
.btn-lg  { padding: 20px 36px; font-size: 16px; }
.btn-block {
  display: flex;
  width: 100%;
  margin-top: 4px;
}

/* ---------- nav (identical on every page) ---------- */

.nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: #ffffff;
  border-bottom: 1px solid var(--c-line-soft);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo { display: inline-flex; align-items: center; }
.nav-logo img { height: 28px; width: auto; }
.nav .nav-logo-dark { display: block; }
.nav .nav-logo-light { display: none; }

.nav-links {
  display: flex;
  gap: 32px;
  margin-left: 16px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-ink-soft);
}

.nav-links a:hover { color: var(--c-ink); }

.nav .btn { margin-left: auto; }

/* =========================================================
   1. HERO
   ========================================================= */

.hero {
  padding: 110px 0 130px;
  background:
    radial-gradient(1200px 600px at 80% 10%, rgba(236,179,24,0.06), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--c-bg-soft) 100%);
  border-bottom: 1px solid var(--c-line-soft);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.hero-copy { max-width: 640px; }

/* full-bleed hero variant — image fills section, text stays left-aligned */
.hero.hero-fullbleed {
  position: relative;
  overflow: hidden;
  padding: 200px 0 140px;
  isolation: isolate;
}

.hero.hero-fullbleed .hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero.hero-fullbleed .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  display: block;
  filter: saturate(105%) contrast(102%);
}

.hero.hero-fullbleed .hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg,
      rgba(5,6,8,0.92) 0%,
      rgba(5,6,8,0.78) 35%,
      rgba(5,6,8,0.45) 65%,
      rgba(5,6,8,0.20) 100%),
    linear-gradient(180deg,
      rgba(5,6,8,0.55) 0%,
      rgba(5,6,8,0.25) 40%,
      rgba(5,6,8,0.55) 100%);
}

.hero.hero-fullbleed .hero-inner {
  position: relative;
  z-index: 2;
  display: block;
  text-align: left;
}

.hero.hero-fullbleed .hero-copy {
  max-width: 640px;
  text-align: left;
}

.hero-cta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 36px;
  border-top: 1px solid var(--c-line);
}

.hero-strip li { display: flex; flex-direction: column; gap: 4px; }

.hero-strip span {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

.hero-strip em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  line-height: 1.4;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 6% 12%;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(236,179,24,0.18), transparent 70%);
  filter: blur(40px);
  z-index: 0;
}

.hero-visual img {
  position: relative;
  z-index: 1;
  max-height: 620px;
  width: auto;
  filter: drop-shadow(0 30px 60px rgba(10,10,10,0.14));
}

/* =========================================================
   2. VISUAL PROBLEM
   ========================================================= */

.visual-problem {
  padding: var(--pad-section) 0 var(--pad-section-tight);
}

.vp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.vp-tile {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
  transition: transform var(--t-base);
}

.vp-tile:hover { transform: translateY(-4px); }

.vp-tile img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--c-bg-soft);
  box-shadow: var(--shadow-sm);
}

.vp-tile figcaption { display: flex; flex-direction: column; gap: 6px; padding: 0 4px; }

.vp-tile strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  letter-spacing: -0.005em;
}

.vp-tile span {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.55;
}

/* =========================================================
   3. PROBLEM FRAMING
   ========================================================= */

.problem-frame {
  padding: var(--pad-section-tight) 0;
  background: var(--c-bg);
}

.problem-frame .h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}

.problem-frame .prose:last-child { margin-bottom: 0; }

/* =========================================================
   4. THESIS / TRANSITION
   ========================================================= */

.thesis {
  padding: var(--pad-section) 0;
  background: var(--c-ink-deep);
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.thesis::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 400px at 50% 0%, rgba(236,179,24,0.08), transparent 70%);
  pointer-events: none;
}

.thesis > .container { position: relative; z-index: 1; }

.thesis-eyebrow { color: rgba(255,255,255,0.5); }

.thesis-display {
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: -0.035em;
  margin: 0 0 28px;
  color: #ffffff;
}

.thesis-soft {
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  letter-spacing: -0.03em;
}

.thesis-body {
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.65;
  color: rgba(255,255,255,0.72);
  max-width: 600px;
  margin: 0 auto;
}

/* =========================================================
   5. MECHANISM
   ========================================================= */

.mechanism {
  padding: var(--pad-section) 0;
  background: var(--c-bg-cream);
  border-top: 1px solid var(--c-line-soft);
  border-bottom: 1px solid var(--c-line-soft);
}

.mech-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.mech-figure {
  display: flex;
  justify-content: center;
  align-items: center;
}

.mech-figure img {
  max-height: 520px;
  width: auto;
  filter: drop-shadow(0 30px 70px rgba(10,10,10,0.14));
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.step {
  border-top: 1px solid var(--c-line);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-num {
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--c-gold-deep);
}

.step-title {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  margin: 0;
  line-height: 1.15;
}

.step-body {
  font-size: 16px;
  color: var(--c-muted);
  line-height: 1.6;
  margin: 0;
}

/* =========================================================
   6. ALTERNATIVES
   ========================================================= */

.alternatives {
  padding: var(--pad-section) 0;
  background-color: #000000;
  color: #ffffff;
}

.alternatives .h2 { color: #ffffff; }
.alternatives .section-eyebrow { color: rgba(255,255,255,0.55); }
.alternatives .section-sub { color: rgba(255,255,255,0.65); }

.alt-table {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid rgba(255,255,255,0.08);
  max-width: 1000px;
  margin: 0 auto;
}

.alt-row {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 1.6fr;
  gap: 40px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  align-items: start;
  transition: background var(--t-base);
}

.alt-head {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  padding: 22px 0;
}

.alt-row > div { font-size: 16px; line-height: 1.55; color: rgba(255,255,255,0.78); }

.alt-row > div:first-child {
  color: #ffffff;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.alt-row strong { font-weight: 600; color: #ffffff; }

.alt-row-self {
  background: linear-gradient(90deg, rgba(236,179,24,0.10), rgba(236,179,24,0.0));
  border-bottom-color: rgba(236,179,24,0.25);
  border-top: 1px solid rgba(236,179,24,0.20);
  margin-top: -1px;
}

.alt-row-self > div { color: #ffffff; }
.alt-row-self > div:first-child { color: var(--c-gold); }

.alt-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 64px;
}

.alt-cta-note {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
  margin: 0;
}

/* =========================================================
   7. PROOF
   ========================================================= */

.proof {
  padding: var(--pad-section) 0;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 0;
}

.proof-card {
  padding: 40px 36px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  background: var(--c-bg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-base);
}

.proof-card:hover {
  border-color: #d8d8d4;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.proof-card-feature {
  background: var(--c-ink);
  color: #ffffff;
  border-color: var(--c-ink);
}

.proof-card-feature:hover { border-color: var(--c-ink); }

.proof-quote {
  font-size: 18px;
  line-height: 1.55;
  font-weight: 400;
  letter-spacing: -0.005em;
  margin: 0;
  color: inherit;
}

.proof-card-feature .proof-quote {
  font-size: 22px;
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.015em;
}

.proof-attrib {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin: 0;
  font-weight: 500;
}

.proof-card-feature .proof-attrib { color: rgba(255,255,255,0.55); }

.proof-disclaimer {
  font-size: 13px;
  color: var(--c-muted);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.6;
}

/* =========================================================
   8. PRODUCT
   ========================================================= */

.product {
  padding: var(--pad-section) 0;
  background-color: #ffffff;
  border-top: 1px solid var(--c-line-soft);
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.product-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding: 32px;
}

.product-visual::before {
  content: "";
  position: absolute;
  inset: 12% 18%;
  border-radius: 50%;
  background: transparent;
  filter: none;
  z-index: 0;
}

.product-visual img {
  position: relative;
  z-index: 1;
  max-height: 560px;
  width: auto;
  filter: drop-shadow(var(--shadow-prod));
}

.product-badges {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.product-badges span {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
  padding: 8px 14px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: var(--c-bg);
}

.product-copy { max-width: 540px; }

.spec-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 48px;
  row-gap: 0;
  margin: 32px 0 40px;
  border-top: 1px solid var(--c-line);
}

.spec-list > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
  gap: 32px;
}

.spec-list dt {
  font-size: 13px;
  color: var(--c-muted);
  letter-spacing: 0.02em;
  font-weight: 500;
  margin-right: 16px;
}

.spec-list dd {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  margin: 0;
  text-align: right;
  letter-spacing: -0.005em;
}

.product-price {
  margin-top: 8px;
  padding: 32px 0 0;
  border-top: 1px solid var(--c-line);
}

.price-line {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 4px;
}

.price {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--c-ink);
  line-height: 1;
}

.price-note {
  font-size: 12px;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.price-sub {
  font-size: 14px;
  color: var(--c-muted);
  margin: 0 0 24px;
}

.price-foot {
  font-size: 12px;
  color: var(--c-muted-soft);
  letter-spacing: 0.04em;
  margin: 12px 0 0;
  text-align: center;
}

/* =========================================================
   9. INSTALL
   ========================================================= */

.install {
  padding: var(--pad-section) 0;
}

.install-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1040px;
  margin: 0 auto;
}

.install-step {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 36px 32px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  background: var(--c-bg);
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
}

.install-step:hover {
  border-color: #d8d8d4;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.install-num {
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--c-gold-deep);
}

.install-step h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--c-ink);
  margin: 0;
}

.install-step p {
  font-size: 15px;
  color: var(--c-muted);
  margin: 0;
  line-height: 1.6;
}

/* =========================================================
   10. FINAL CTA
   ========================================================= */

.final-cta {
  padding: var(--pad-section) 0;
  background: var(--c-ink-deep);
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 400px at 50% 100%, rgba(236,179,24,0.08), transparent 70%);
  pointer-events: none;
}

.final-cta > .container { position: relative; z-index: 1; }

.final-eyebrow { color: rgba(255,255,255,0.5); }

.final-cta .display-cta { color: #ffffff; }
.final-cta .display-soft { color: rgba(255,255,255,0.5); }

.final-lede {
  font-size: 16px;
  letter-spacing: 0.01em;
  color: rgba(255,255,255,0.7);
  margin: 0 0 36px;
}

.cta-row { display: flex; justify-content: center; }

/* =========================================================
   FOOTER
   ========================================================= */

.footer {
  background: var(--c-ink-deep);
  color: rgba(255,255,255,0.6);
  padding: 80px 0 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-logo { height: 28px; width: auto; margin-bottom: 24px; }

.footer-brand p {
  font-size: 14px;
  margin: 0 0 8px;
  line-height: 1.6;
}

.footer-fine { font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 20px; }

.footer-fine a {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 2px;
}







.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-nav h4 {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin: 0 0 16px;
  font-weight: 600;
}

.footer-nav a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  padding: 4px 0;
  transition: color var(--t-fast);
}

.footer-nav a:hover { color: #ffffff; }

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.footer-disclaimer { max-width: 540px; }

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 1024px) {
  :root {
    --pad-section: 100px;
    --pad-section-tight: 80px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .hero-visual { order: -1; }
  .hero-visual img { max-height: 460px; }

  .hero.hero-fullbleed { padding: 160px 0 110px; }
  .hero.hero-fullbleed .hero-bg img { object-position: 70% center; }
  .hero.hero-fullbleed .hero-overlay {
    background:
      linear-gradient(180deg,
        rgba(5,6,8,0.78) 0%,
        rgba(5,6,8,0.62) 60%,
        rgba(5,6,8,0.78) 100%);
  }

  .mech-layout {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .product-grid { grid-template-columns: 1fr; gap: 48px; }
  .product-copy { max-width: none; margin: 0 auto; }
  .product-visual { padding: 0; }

  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-card-feature { grid-column: 1 / -1; }

  .footer-inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 720px) {
  :root {
    --pad-section: 72px;
    --pad-section-tight: 56px;
  }

  body { font-size: 16px; }

  .container { padding: 0 20px; }

  .nav-inner { padding: 14px 20px; gap: 16px; }
  .nav-links { display: none; }

  .hero { padding: 56px 0 80px; }
  .hero.hero-fullbleed { padding: 120px 0 80px; }
  .hero-strip { grid-template-columns: 1fr 1fr; gap: 20px; }
  .hero-cta { margin-bottom: 40px; }
  .hero-cta .btn { width: 100%; }

  .vp-grid { grid-template-columns: 1fr; gap: 24px; }

  .steps { gap: 24px; }

  .alt-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px 0;
  }
  .alt-head { display: none; }
  .alt-row > div:first-child { font-size: 16px; }
  .alt-row > div { font-size: 15px; }

  .proof-grid { grid-template-columns: 1fr; }
  .proof-card { padding: 32px 28px; }
  .proof-card-feature .proof-quote { font-size: 19px; }

  .spec-list { grid-template-columns: 1fr; }

  .install-steps { grid-template-columns: 1fr; gap: 16px; }

  .footer-nav { grid-template-columns: 1fr 1fr; gap: 32px; }

  .footer-bottom { flex-direction: column; padding: 24px 20px; }

  .price { font-size: 44px; }
}

/* =========================================================
   REFINEMENT MODULE — hero, trust strip, uses,
   proof feature, observed performance stats, FAQ.
   ========================================================= */

/* ---------- hero — dark variant ---------- */

.hero.hero-dark {
  background:
    radial-gradient(1200px 600px at 78% 8%, rgba(236, 179, 24, 0.14), transparent 60%),
    radial-gradient(800px 500px at 18% 95%, rgba(236, 179, 24, 0.05), transparent 65%),
    var(--c-ink-deep);
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.hero.hero-dark .display { color: #ffffff; }
.hero.hero-dark .display-soft { color: rgba(255, 255, 255, 0.55); }
.hero.hero-dark .lede { color: rgba(255, 255, 255, 0.78); }
.hero.hero-dark .eyebrow { color: rgba(255, 255, 255, 0.5); }

.hero.hero-dark .btn-ghost {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.20);
  background: transparent;
}

.hero.hero-dark .btn-ghost:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.hero.hero-dark .hero-strip { border-top-color: rgba(255, 255, 255, 0.10); }
.hero.hero-dark .hero-strip span { color: #ffffff; }
.hero.hero-dark .hero-strip em { color: rgba(255, 255, 255, 0.55); }

.hero.hero-dark .hero-visual::before {
  background: radial-gradient(closest-side, rgba(236, 179, 24, 0.22), transparent 70%);
  filter: blur(50px);
}

.hero.hero-dark .hero-visual img {
  filter: drop-shadow(0 30px 70px rgba(0, 0, 0, 0.55));
}

/* ---------- trust strip ---------- */

.trust-strip {
  padding: 36px 0;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line-soft);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}







.trust-icon {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-gold-deep);
  flex-shrink: 0;
}

.trust-icon svg {
  width: 20px;
  height: 20px;
}

.trust-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  flex: 1 1 auto;
}

.trust-text strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  letter-spacing: -0.005em;
  line-height: 1.3;
  display: block;
}

.trust-text span {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.45;
  display: block;
}

/* ---------- uses (whole-home coverage) ---------- */

.uses {
  padding: var(--pad-section) 0;
  background: var(--c-bg);
  border-top: 1px solid var(--c-line-soft);
}

.uses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.use-tile {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform var(--t-base);
}

.use-tile:hover { transform: translateY(-4px); }

.use-tile img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--c-bg-soft);
  box-shadow: var(--shadow-sm);
}

.use-tile picture {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.use-tile picture img {
  width: 100%;
  height: 100%;
  border-radius: 0;
  box-shadow: none;
}

.use-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0 4px;
}

.use-text strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  letter-spacing: -0.005em;
}

.use-text span {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.55;
}

/* ---------- proof feature (Uncle Osaka) ---------- */

.proof-feature {
  position: relative;
  padding: 56px 56px 48px;
  background: linear-gradient(180deg, #ffffff 0%, var(--c-bg-soft) 100%);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  margin: 0 0 28px;
  overflow: hidden;
}

.proof-feature-mark {
  position: absolute;
  top: -24px;
  left: 36px;
  font-size: 180px;
  line-height: 1;
  font-weight: 700;
  color: var(--c-gold);
  opacity: 0.20;
  pointer-events: none;
  user-select: none;
}

.proof-feature-quote {
  position: relative;
  z-index: 1;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--c-ink);
  margin: 0 0 28px;
  max-width: 880px;
}

.proof-feature-attrib {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
}

.proof-feature-attrib strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  letter-spacing: -0.005em;
}

.proof-feature-attrib span {
  font-size: 12px;
  color: var(--c-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- observed performance stats ---------- */

.proof-stats {
  margin-top: 64px;
  padding: 48px 0 0;
  border-top: 1px solid var(--c-line);
}

.proof-stats-label {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin: 0 0 36px;
}

.proof-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 8px;
  text-align: center;
  align-items: center;
}

.stat-num {
  font-size: clamp(34px, 4.4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--c-ink);
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.55;
  max-width: 280px;
}

.proof-disclaimer {
  margin-top: 8px;
}

/* ---------- FAQ ---------- */

.faq {
  padding: var(--pad-section) 0;
  background: var(--c-bg-cream);
  border-top: 1px solid var(--c-line-soft);
}

.faq .section-head { margin-bottom: 56px; }

.faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.faq-item {
  border-bottom: 1px solid var(--c-line);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 4px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--c-ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transition: color var(--t-fast);
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ""; }

.faq-item summary::after {
  content: "+";
  font-size: 26px;
  font-weight: 300;
  color: var(--c-muted);
  transition: transform var(--t-base), color var(--t-base);
  flex-shrink: 0;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
  color: var(--c-ink);
}

.faq-item summary:hover { color: var(--c-gold-deep); }

.faq-item p {
  margin: 0 0 24px;
  padding: 0 4px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-muted);
  max-width: 660px;
}

/* ---------- responsive overrides for refinement module ---------- */

@media (max-width: 1024px) {
  .trust-grid { grid-template-columns: 1fr; gap: 20px; }
  .uses-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .proof-feature { padding: 44px 40px 36px; }
  .proof-feature-mark { font-size: 140px; left: 24px; top: -16px; }
  .proof-stats-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}

@media (max-width: 720px) {
  .trust-strip { padding: 22px 0; }
  .trust-grid { gap: 14px; }
  .trust-item { gap: 12px; }
  .trust-icon { height: 36px; width: 36px; }
  .trust-icon svg { width: 18px; height: 18px; }

  .uses-grid { grid-template-columns: 1fr; gap: 24px; }

  .proof-feature { padding: 32px 24px 28px; border-radius: var(--radius-md); }
  .proof-feature-mark { font-size: 100px; left: 14px; top: -8px; }
  .proof-feature-quote { font-size: 18px; line-height: 1.55; }

  .proof-stats { margin-top: 48px; padding-top: 36px; }
  .proof-stats-grid { grid-template-columns: 1fr; gap: 28px; margin-bottom: 32px; }

  .faq-item summary { font-size: 16px; padding: 20px 4px; }
  .faq-item p { font-size: 15px; }
}

/* ---------- final closing line ---------- */

.final-line {
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.45;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: rgba(255, 255, 255, 0.85);
  margin: -8px 0 16px;
  font-style: normal;
}

@media (max-width: 720px) {
  .final-line { font-size: 17px; margin: -4px 0 12px; }
}

/* =========================================================
   SUPPORT PAGES — solid white nav (no scroll transform),
   page hero, prose content. Reuses main site styles.
   ========================================================= */

.page-hero {
  padding: 96px 0 56px;
  background: var(--c-bg-soft);
  border-bottom: 1px solid var(--c-line-soft);
}

.page-hero h1 {
  font-size: clamp(36px, 4.6vw, 56px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--c-ink);
  margin: 0 0 16px;
}

.page-hero p {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.6;
  color: var(--c-muted);
  max-width: 640px;
  margin: 0;
}

.support-content {
  padding: 80px 0 110px;
}

.support-prose {
  max-width: 780px;
  margin: 0 auto;
}

.support-prose h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--c-ink);
  margin: 36px 0 14px;
  line-height: 1.3;
}

.support-prose h3:first-of-type { margin-top: 24px; }

.support-prose p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-ink-soft);
  margin: 0 0 18px;
}

.support-prose a {
  color: var(--c-gold-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.support-prose a:hover { color: var(--c-ink); }

.support-prose strong { color: var(--c-ink); }

/* contact form — uses same minimal aesthetic */

.contact-card {
  max-width: 560px;
  margin: 0 auto;
  padding: 40px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.contact-form { display: flex; flex-direction: column; gap: 16px; }

.contact-form input,
.contact-form textarea {
  width: 100%;
  font: inherit;
  font-size: 15px;
  padding: 14px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: var(--c-bg);
  color: var(--c-ink);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--c-ink);
  box-shadow: 0 0 0 3px rgba(10,10,10,0.06);
}

.contact-form textarea { resize: vertical; min-height: 140px; line-height: 1.55; }

.contact-form button {
  align-self: flex-start;
  margin-top: 4px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--c-gold), var(--c-gold-deep));
  color: var(--c-ink);
  box-shadow: 0 6px 20px rgba(236, 179, 24, 0.32);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}

.contact-form button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(236, 179, 24, 0.42);
}

.contact-note {
  margin: 24px 0 0;
  font-size: 13px;
  color: var(--c-muted);
  text-align: center;
}

@media (max-width: 720px) {
  .page-hero { padding: 72px 0 40px; }
  .support-content { padding: 56px 0 80px; }
  .contact-card { padding: 28px; }
}

/* ---------- confidence note under primary CTA ---------- */

.cta-note {
  margin-top: 12px;
  font-size: 0.9em;
  color: rgba(0, 0, 0, 0.65);
  text-align: center;
  font-weight: 400;
}

/* ---------- credibility line (thesis section) ---------- */

.credibility-line {
  font-size: 0.9em;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 16px;
  text-align: center;
  font-weight: 400;
  letter-spacing: 0.2px;
}

/* ---------- home-page hero (index only) ----------
   Pull the hero up so its background sits behind the static
   header (header stays solid white, z-index 60). Internal
   padding keeps hero text clear of the header on all screens. */

.home-page .hero.hero-fullbleed {
  position: relative;
  margin-top: -64px;
  padding: 128px 0 96px;
}

@media (max-width: 1024px) {
  .home-page .hero.hero-fullbleed {
    margin-top: -64px;
    padding: 112px 0 84px;
  }
}

@media (max-width: 720px) {
  .home-page .hero.hero-fullbleed {
    margin-top: -56px;
    padding: 96px 0 64px;
  }
}

/* ---------- contact page additions ---------- */

.contact-meta {
  margin-bottom: 12px;
  padding: 0 16px;
  font-size: 0.9rem;
  color: rgba(0, 0, 0, 0.75);
  line-height: 1.6;
}

.contact-trust {
  margin-top: 12px;
  font-size: 0.9em;
  color: rgba(0, 0, 0, 0.75);
  text-align: center;
}

.contact-security {
  margin-top: 6px;
  font-size: 0.8em;
  color: rgba(0, 0, 0, 0.5);
  text-align: center;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  border: 1px solid rgba(0, 0, 0, 0.15);
  padding: 14px 16px;
  font-size: 0.95rem;
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: rgba(0, 0, 0, 0.35);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.05);
}

/* Launch refinement: preserve original visual language, strengthen usable detail. */
[hidden] { display: none !important; }
img { height: auto; }
:focus-visible { outline: 3px solid #947000; outline-offset: 5px; }
:target { scroll-margin-top: 110px; }
#main:focus { outline: none; }
.skip-link { position: fixed; top: 8px; left: 16px; z-index: 200; padding: 12px 20px; background: #fff; color: #0a0a0a; border: 2px solid #947000; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.nav-logo { flex-shrink: 0; }
.nav-logo img { width: 118px; height: 28px; }
.nav-inner { gap: 24px; }
.nav-links { gap: 24px; }
.nav-links a { padding: 10px 0; }
.nav-links a[aria-current=page] { text-decoration: underline; text-underline-offset: 6px; }
.menu-toggle { display: none; border: 1px solid var(--c-line); border-radius: 999px; background: white; color: var(--c-ink); padding: 12px 16px; font-size: 14px; }
.home-page .hero.hero-fullbleed { margin-top: 0; padding: 96px 0 84px; }
.hero.hero-fullbleed .hero-copy { max-width: 700px; }
.hero .display { font-size: clamp(40px, 5.1vw, 70px); }
.hero .display-soft { display: inline-block; margin-top: 12px; font-size: .72em; line-height: 1.16; }
.hero.hero-dark .eyebrow, .hero.hero-dark .display-soft, .hero.hero-dark .hero-strip em { color: #bcbcbc; }
.hero .alt-cta-note, .alternatives .alt-cta-note { color: #c5c5c5; font-size: 14px; }
.hero-strip em { font-size: 12px; }
.hero.hero-fullbleed .hero-bg img { height: 100%; }
.thesis-eyebrow, .thesis-soft, .final-eyebrow, .final-cta .display-soft { color: #b2b2b2; }
.trust-text span, .product-badges span, .price-note, .price-foot { font-size: 14px; }
.product-badges span { letter-spacing: .04em; text-transform: none; }
.trust-text span, .price-foot { color: #606060; }
.product-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 64px; }
.product-copy { min-width: 0; }
.spec-list { grid-template-columns: 1fr; }
.spec-list > div { padding: 12px 0; }
.spec-list dt { font-size: 14px; }
.visual-note { font-size: 14px; color: #606060; margin-top: 20px; line-height: 1.6; }
.visual-note { text-align: center; }
.proof-grid { margin-bottom: 0; }
.proof-card { justify-content: flex-start; gap: 12px; }
.proof-card h3 { font-size: 21px; margin: 0; }
.proof-card p { font-size: 16px; margin: 0; color: #606060; }
.support-prose h2 { font-size: 22px; font-weight: 600; letter-spacing: -.015em; margin: 36px 0 14px; line-height: 1.3; }
.support-prose a, .faq-item a, .dispatch-note a, .contact-card a, .cta-note a { color: #705100; text-decoration: underline; text-underline-offset: 3px; }
.support-prose a.btn { color: #0a0a0a; text-decoration: none; }
.dispatch-note { border-left: 2px solid var(--c-gold); padding-left: 18px; font-size: 15px; color: #505050; margin: 24px 0; }
.price-line { flex-wrap: wrap; }
.price-foot { line-height: 1.65; }
.contact-meta { padding: 0; margin-bottom: 24px; overflow-wrap: anywhere; }
.contact-form { gap: 10px; }
.contact-form label { font-size: 14px; font-weight: 500; margin-top: 12px; }
.contact-form input, .contact-form textarea, .contact-form select { font: inherit; font-size: 16px; width: 100%; min-width: 0; color: #0a0a0a; background: #fff; }
.contact-form input:focus-visible, .contact-form textarea:focus-visible, .contact-form select:focus-visible { outline: 2px solid #947000; outline-offset: 2px; }
.contact-form button { min-height: 48px; white-space: normal; line-height: 1.4; }
.contact-form button:disabled { cursor: not-allowed; box-shadow: none; background: #e8e8e6; color: #555; transform: none; }
.form-availability, .form-status, .form-privacy, .contact-note { font-size: 14px; line-height: 1.65; }
.form-status:empty { display: none; }
.form-status { border-left: 2px solid #947000; padding-left: 14px; }
.form-privacy { color: #606060; margin-bottom: 0; }
.step-num, .install-num { color: #806000; }
.faq-item summary:hover { color: #705100; }
.footer-nav h4, .footer-bottom { color: #a8a8a8; }
.footer-nav h4, .footer-bottom, .footer-fine { font-size: 14px; }
.footer-logo { max-width: 180px; }
.btn { min-height: 44px; white-space: normal; line-height: 1.2; text-align: center; }
@media (max-width: 1024px) {
  .nav-inner { flex-wrap: wrap; }
  .nav-links { display: flex; flex-basis: 100%; order: 3; margin: 0; flex-wrap: wrap; gap: 4px 24px; }
  .has-navigation .nav-links { display: none; }
  .has-navigation .nav-links.is-open { display: flex; }
  .menu-toggle { display: inline-flex; }
  .nav .btn { margin-left: auto; }
  .product-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-copy { width: 100%; max-width: 680px; }
  .proof-grid { grid-template-columns: 1fr; }
  .home-page .hero.hero-fullbleed { padding: 72px 0; }
}
@media (max-width: 480px) {
  .nav-inner { gap: 10px; padding: 12px 16px; }
  .nav-logo img { width: 94px; height: auto; }
  .nav .btn { font-size: 12px; padding: 11px 13px; }
  .menu-toggle { font-size: 13px; padding: 11px 13px; }
  .has-navigation .nav-links.is-open { flex-direction: column; }
  .hero .display { font-size: 40px; }
  .hero .display-soft { font-size: .8em; }
  .home-page .hero.hero-fullbleed { padding: 56px 0; }
  .contact-card { padding: 24px 20px; }
  .spec-list > div { gap: 16px; }
  .price-note { max-width: 200px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media (max-width: 360px) {
  .nav-inner { gap: 6px; }
  .nav-logo img { width: 82px; }
  .menu-toggle { padding: 10px 11px; }
  .nav .btn { padding: 10px 11px; }
}

/* Owner-directed premium refinement. Original substantive copy remains visible. */
:root { --pad-section: 112px; --pad-section-tight: 88px; --radius-md: 6px; --radius-lg: 8px; --c-bg-cream: #f4f3ee; }
body { line-height: 1.65; }
h1,h2,h3 { text-wrap: balance; }
p { text-wrap: pretty; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.display,.thesis-display,.display-cta { letter-spacing: -.045em; font-weight: 600; }
.display-soft,.thesis-soft { font-weight: 300; }
.h2 { font-size: clamp(30px,3.3vw,46px); line-height: 1.13; letter-spacing: -.035em; }
.section-head { margin-bottom: 56px; }
.section-eyebrow,.eyebrow { letter-spacing: .13em; font-size: 12px; line-height: 1.65; }
.section-sub { max-width: 690px; line-height: 1.7; }
.btn { border-radius: 6px; transition: background-color .18s ease, border-color .18s ease, box-shadow .18s ease; }
.btn-primary { background: #e9b21b; box-shadow: none; }
.btn-primary:hover { background: #f4c03c; box-shadow: none; transform: none; }
.btn-primary:active { background: #d8a113; }
.btn-ghost:hover { transform: none; }
.btn-lg { padding: 19px 28px; }
.nav { border-bottom: 1px solid #e7e6e2; box-shadow: none; }
.nav-inner { min-height: 76px; }
.nav-logo img { width: 125px; height: auto; }
.nav-links a { font-size: 13px; font-weight: 500; }
.nav-links a:hover { text-decoration: underline; text-underline-offset: 6px; }
.menu-toggle { border-radius: 5px; }
.home-page .hero.hero-fullbleed { padding: 78px 0 64px; }
.hero.hero-fullbleed .hero-copy { max-width: 780px; }
.hero .display { font-size: clamp(42px,4.4vw,64px); line-height: 1.035; max-width: 780px; margin-bottom: 28px; }
.hero .display-soft { font-size: .64em; margin-top: 17px; line-height: 1.3; letter-spacing: -.035em; }
.hero .lede { max-width: 560px; font-size: 18px; line-height: 1.65; margin-bottom: 16px; }
.category-note { max-width: 520px; font-size: 14px; color: #bcbcbc; margin: 0 0 28px; }
.hero-cta { gap: 12px 18px; }
.hero-cta .btn-ghost { border-color: #626366; }
.hero-strip { max-width: 660px; gap: 30px; padding-top: 25px; }
.hero-strip span { font-size: 22px; font-weight: 500; font-variant-numeric: tabular-nums; }
.hero-strip em { font-size: 12px; line-height: 1.5; }
.hero.hero-fullbleed .hero-overlay { background: linear-gradient(90deg,rgba(5,6,8,.92) 0%,rgba(5,6,8,.79) 37%,rgba(5,6,8,.30) 76%,rgba(5,6,8,.10)),linear-gradient(180deg,rgba(5,6,8,.20),rgba(5,6,8,.18)); }
.trust-strip { padding: 34px 0; background: #f4f3ee; }
.trust-grid-pair { grid-template-columns: 1fr 1fr; gap: 60px; }
.trust-item { justify-content: flex-start; }
.trust-text strong { font-size: 15px; font-weight: 600; }
.trust-icon { width: 30px; height: 30px; }
.chapter-nav { border-bottom: 1px solid #e0dfda; background: #fff; }
.chapter-nav .container { display: flex; justify-content: space-between; gap: 24px; }
.chapter-nav a { display: flex; align-items: baseline; gap: 13px; padding: 23px 0; font-size: 11px; color: #7b6b44; font-variant-numeric: tabular-nums; }
.chapter-nav a span { font-size: 13px; color: #242424; }
.chapter-nav a:hover span { text-decoration: underline; text-underline-offset: 5px; }
.vp-tile,.use-tile { transition: none; }
.vp-tile:hover,.use-tile:hover { transform: none; }
.vp-tile img { border-radius: 3px; box-shadow: none; }
.vp-tile figcaption { padding: 0; }
.vp-tile strong { font-size: 17px; }
.vp-tile span { font-size: 15px; line-height: 1.65; }
.problem-frame { padding: 88px 0; }
.problem-frame .prose { font-size: 18px; }
.thesis { padding: 112px 0; }
.thesis::before { background: none; }
.thesis-display { font-size: clamp(38px,5vw,66px); }
.credibility-line { font-size: 14px; color: #bfc0c0; margin-top: 28px; }
.mechanism .section-head { max-width: 840px; }
.mech-layout { display: block; }
.steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 40px; }
.step { border-top: 1px solid #c9c6bd; padding-top: 24px; gap: 16px; }
.step-num { color: #786024; }
.step-title { font-size: 30px; font-weight: 500; }
.step-body { line-height: 1.75; }
.use-tile { border: 0; border-radius: 3px; box-shadow: none; background: transparent; }
.use-tile:hover { box-shadow: none; }
.use-text { padding: 20px 0 0; }
.proof { background: #f4f3ee; }
.proof .section-head { text-align: left; margin-left: 0; }
.proof-feature { background: transparent; border: 0; border-top: 1px solid #c9c6bd; border-radius: 0; padding: 48px 0 0 100px; margin-bottom: 0; overflow: visible; }
.proof-feature-mark { top: 30px; left: 0; font-size: 100px; font-weight: 400; color: #98752c; opacity: 1; }
.proof-feature-quote { font-size: clamp(23px,2.35vw,32px); font-weight: 400; letter-spacing: -.025em; line-height: 1.5; max-width: 950px; margin-bottom: 32px; }
.proof-feature-attrib { border-top: 0; padding-top: 0; gap: 6px; }
.proof-feature-attrib strong { font-size: 17px; }
.proof-feature-attrib span { font-size: 12px; color: #60605d; }
.proof-stats { border-color: #c9c6bd; margin-top: 60px; padding-top: 30px; }
.proof-stats-label { text-align: left; margin-bottom: 38px; }
.proof-stats-grid { gap: 0; margin-bottom: 32px; }
.stat { padding: 0 32px; text-align: left; align-items: flex-start; border-left: 1px solid #cecbc3; }
.stat:first-child { padding-left: 0; border-left: 0; }
.stat-num { font-size: clamp(42px,4.8vw,64px); font-weight: 400; font-variant-numeric: tabular-nums; letter-spacing: -.05em; }
.stat-label { font-size: 15px; color: #52534f; line-height: 1.65; max-width: 290px; }
.proof-disclaimer { max-width: none; text-align: left; font-size: 13px; line-height: 1.65; color: #62635e; }
.alternatives { background: #101214; }
.alternatives .section-head { max-width: none; text-align: left; }
.alternatives .section-sub { margin-left: 0; max-width: 700px; }
.alternatives .section-eyebrow { color: #b8babb; }
.comparison-scroll { overflow-x: auto; overscroll-behavior-x: contain; }
.comparison-table { width: 100%; border-collapse: collapse; text-align: left; }
.comparison-table th,.comparison-table td { padding: 25px 24px; vertical-align: top; border-bottom: 1px solid #383a3c; font-size: 15px; line-height: 1.65; color: #c6c8c9; }
.comparison-table thead th { color: #b9babc; font-size: 12px; font-weight: 500; padding-top: 16px; padding-bottom: 16px; border-top: 1px solid #383a3c; }
.comparison-table th:first-child { width: 24%; }
.comparison-table tbody th { color: #fff; font-weight: 500; }
.comparison-table strong { font-weight: 500; }
.comparison-table td { width: 38%; }
.comparison-table .comparison-self { background: #27251e; }
.comparison-table .comparison-self th { border-left: 2px solid #e9b21b; color: #f0c454; }
.comparison-table .comparison-self td { color: #fff; }
.cost-table td:last-child { width: 22%; font-size: 25px; font-weight: 500; letter-spacing: -.03em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.cost-table td:nth-child(2) { width: 54%; }
.alt-cta { margin-top: 44px; align-items: flex-start; text-align: left; }
.product-grid { align-items: start; gap: 80px; }
.product-visual { padding: 40px 0; position: sticky; top: 108px; gap: 24px; }
.product-visual img { filter: none; max-height: 580px; }
.product-badges { border-top: 1px solid #e0dfda; width: 100%; padding-top: 24px; flex-direction: column; gap: 10px; }
.product-badges span { background: transparent; border: 0; border-radius: 0; padding: 0; text-align: center; font-size: 13px; letter-spacing: .01em; font-weight: 400; }
.product-copy { max-width: none; }
.spec-list { margin: 32px 0; }
.spec-list > div { padding: 14px 0; }
.spec-list dt { font-size: 14px; font-weight: 400; letter-spacing: 0; }
.spec-list dd { font-size: 15px; font-weight: 500; font-variant-numeric: tabular-nums; }
.product-price { border: 1px solid #dedbd1; background: #f6f5f0; padding: 28px; margin-top: 32px; }
.product-price .section-eyebrow { margin-bottom: 22px; }
.price { font-size: 62px; font-weight: 500; letter-spacing: -.05em; }
.price-note { text-transform: none; letter-spacing: 0; font-size: 14px; }
.price-line { gap: 12px 20px; margin-bottom: 20px; }
.price-sub { font-size: 14px; line-height: 1.6; margin-bottom: 20px; }
.price-sub a { color: #5d4b23; text-decoration: underline; text-underline-offset: 3px; }
.dispatch-note { padding: 0 0 0 16px; margin: 24px 0; border-color: #ae8837; font-size: 14px; }
.price-foot { font-size: 13px; letter-spacing: 0; }
.cta-note { font-size: 13px; line-height: 1.65; }
.install { border-top: 1px solid #e7e6e2; }
.install-step { border: 0; border-top: 1px solid #c9c6bd; border-radius: 0; background: transparent; padding: 24px 0 0; box-shadow: none; }
.install-step:hover { transform: none; box-shadow: none; border-color: #c9c6bd; }
.install-step h3 { font-weight: 500; }
.install-step p { font-size: 16px; line-height: 1.75; }
.faq-item { border-radius: 0; background: transparent; border-left: 0; border-right: 0; border-top: 0; box-shadow: none; }
.faq-item summary { font-size: 18px; font-weight: 500; line-height: 1.5; padding: 24px 40px 24px 0; }
.faq-item p { padding-left: 0; padding-right: 24px; font-size: 16px; line-height: 1.75; }
.final-cta { background: #101214; }
.footer { padding-top: 72px; }
.footer-logo { width: 150px; }
.footer-fine { max-width: 370px; font-size: 13px; line-height: 1.8; }
.footer-nav a { font-size: 14px; padding: 3px 0; }
.footer-nav h4 { text-transform: none; letter-spacing: 0; color: #fff; }
.footer-bottom { margin-top: 50px; padding: 24px 32px; font-size: 12px; }
.page-hero { padding: 80px 0 56px; background: #f4f3ee; border-bottom: 1px solid #e0dfda; }
.page-hero h1 { font-size: clamp(34px,4vw,52px); font-weight: 500; letter-spacing: -.04em; line-height: 1.15; }
.page-hero p { max-width: 650px; margin: 20px auto 0; line-height: 1.7; }
.support-content { padding: 64px 0; }
.support-prose { max-width: 760px; }
.support-prose h2 { font-size: 24px; font-weight: 500; margin-top: 40px; }
.support-prose p { font-size: 16px; line-height: 1.8; }
.pro-model { margin-top: 42px; border-top: 1px solid #c9c6bd; padding-top: 28px; }
.pro-model .section-eyebrow { margin-bottom: 12px; }
.pro-model h2 { margin-top: 0; }
.contact-card { max-width: 760px; border-radius: 6px; padding: 40px; border: 1px solid #deddd7; box-shadow: none; }
.form-heading h2 { font-size: 30px; line-height: 1.2; font-weight: 500; letter-spacing: -.025em; margin: 0 0 26px; }
.form-heading .section-eyebrow { margin-bottom: 12px; }
.form-availability { padding: 18px 20px; background: #f4f3ee; border-left: 2px solid #ae8837; overflow-wrap: anywhere; }
.form-field { min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.contact-form { gap: 20px; }
.contact-form label { margin: 0; font-size: 14px; line-height: 1.5; }
.contact-form input,.contact-form textarea,.contact-form select { border-radius: 4px; padding: 13px 14px; border-color: #bcbdb8; box-shadow: none; }
.contact-form textarea { resize: vertical; min-height: 125px; }
.installer-form { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.installer-form > :not(.form-field),.installer-form .form-field-wide { grid-column: 1/-1; }
.contact-form button { border-radius: 5px; box-shadow: none; }
@media (max-width: 1024px) {
  :root { --pad-section: 80px; }
  .hero .display { font-size: clamp(40px,6vw,62px); }
  .hero .display-soft { font-size: .65em; }
  .product-grid { grid-template-columns: 1fr; gap: 30px; }
  .product-visual { position: static; max-width: 650px; width: 100%; margin: auto; }
  .product-copy { max-width: 760px; margin: auto; }
  .steps { gap: 28px; }
  .chapter-nav .container { gap: 20px; }
  .chapter-nav a { gap: 8px; }
}
@media (max-width: 720px) {
  :root { --pad-section: 64px; }
  .container { padding-left: 24px; padding-right: 24px; }
  .home-page .hero.hero-fullbleed { padding: 48px 0; }
  .hero .display { font-size: clamp(37px,7.8vw,54px); }
  .hero .display-soft { font-size: .66em; }
  .hero .lede { font-size: 17px; }
  .hero-cta { align-items: stretch; }
  .hero-cta .btn { padding: 17px 20px; }
  .hero.hero-fullbleed .hero-overlay { background: linear-gradient(90deg,rgba(5,6,8,.94),rgba(5,6,8,.76)); }
  .hero-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 28px; }
  .hero-strip span { font-size: 23px; }
  .hero-strip em { font-size: 13px; }
  .trust-grid-pair { grid-template-columns: 1fr; gap: 26px; }
  .trust-item { padding: 0; border: 0; }
  .chapter-nav .container { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 20px; padding-top: 12px; padding-bottom: 12px; }
  .chapter-nav a { padding: 10px 0; }
  .section-head { margin-bottom: 36px; }
  .h2 { font-size: 32px; }
  .section-sub { font-size: 17px; }
  .problem-frame { padding: 64px 0; }
  .problem-frame .prose { font-size: 17px; }
  .thesis { padding: 72px 0; }
  .thesis-display { font-size: 39px; }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .step { gap: 12px; }
  .step-body { font-size: 16px; }
  .proof-feature { padding: 76px 0 0; }
  .proof-feature-mark { top: 22px; left: 0; font-size: 80px; }
  .proof-feature-quote { font-size: 24px; }
  .proof-stats { margin-top: 40px; }
  .proof-stats-grid { grid-template-columns: 1fr; gap: 28px; }
  .stat,.stat:first-child { border: 0; padding: 0 0 24px; border-bottom: 1px solid #cecbc3; }
  .stat-num { font-size: 54px; }
  .stat-label { max-width: 100%; }
  .comparison-table { min-width: 660px; }
  .comparison-table th,.comparison-table td { padding: 18px 16px; font-size: 14px; }
  .comparison-table thead th { font-size: 12px; }
  .comparison-scroll { margin-right: -24px; padding-right: 24px; }
  .cost-table td:last-child { font-size: 23px; }
  .alt-cta { margin-top: 30px; }
  .product-price { padding: 24px 20px; }
  .product-visual { padding-top: 0; }
  .price { font-size: 58px; }
  .price-note { max-width: 160px; }
  .install-steps { gap: 30px; }
  .faq-item summary { font-size: 17px; }
  .page-hero { padding: 56px 0 40px; }
  .support-content { padding: 40px 0; }
  .contact-card { padding: 28px 20px; }
  .installer-form { grid-template-columns: 1fr; }
  .footer { padding-top: 48px; }
  .footer-bottom { padding-left: 24px; padding-right: 24px; }
}
@media (max-width: 480px) {
  .nav-inner { min-height: 66px; }
  .nav-logo img { width: 96px; }
  .hero-cta .btn { width: 100%; }
  .hero .alt-cta-note { font-size: 13px; }
}
@media (max-width: 360px) {
  .nav-logo img { width: 82px; }
  .hero .display { font-size: 35px; }
  .hero .display-soft { font-size: .70em; }
}
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}
.table-hint { display: none; }
@media (max-width: 720px) { .table-hint { display: block; color: #bfc1c1; font-size: 12px; margin: 0 0 14px; } }

.proof-intro { margin-left: 0; }
.skip-link:not(:focus) { clip-path: inset(50%); width: 1px; height: 1px; overflow: hidden; padding: 0; border: 0; }

/* Research & Evidence: shared type, measured reading width and distinct evidence categories. */
.evidence-hero{padding:88px 0 52px;background:#f3f2ed;border-bottom:1px solid #deded5}.evidence-hero h1{font-size:clamp(42px,5.5vw,76px);font-weight:500;letter-spacing:-.045em;line-height:1.04;margin:20px 0 28px}.evidence-lead{font-size:clamp(19px,2vw,25px);line-height:1.55;max-width:740px;color:#4b4e48}.evidence-jump{display:flex;gap:28px;flex-wrap:wrap;margin-top:44px;font-size:13px}.evidence-jump a,.study-source,.research-note a,.research-context-link a,.evidence-meaning a{color:#6a4e0c;text-decoration:underline;text-underline-offset:5px}.evidence-intro{padding:62px 0;border-bottom:1px solid #e5e5dd}.evidence-intro-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:72px}.evidence-intro h2{font-size:30px;line-height:1.2;letter-spacing:-.025em;font-weight:500}.evidence-intro p{max-width:650px;line-height:1.75;color:#55584f}.evidence-intro p+p{margin-top:18px}.evidence-section{padding:80px 0}.study{display:grid;grid-template-columns:280px 1fr;border-top:1px solid #cfd1c7;padding:44px 0;gap:56px}.study-index>span:first-child{display:block;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:#666a60}.study-index strong{display:block;font-size:clamp(32px,4vw,48px);letter-spacing:-.04em;line-height:1.1;font-weight:500;margin:20px 0 12px}.study-index p{max-width:230px;color:#55594f;font-size:14px;line-height:1.6}.study-kind{display:block;font-size:11px;color:#64675d;margin-top:30px}.study-content{max-width:750px}.study-content h3{font-size:clamp(24px,2.6vw,31px);font-weight:500;letter-spacing:-.025em;line-height:1.2;margin:0 0 14px}.study-byline{color:#666b61;font-size:13px;line-height:1.65}.study-facts{margin:26px 0;display:grid;gap:16px}.study-facts>div{display:grid;grid-template-columns:100px 1fr;gap:16px}.study-facts dt{font-size:12px;font-weight:600;color:#565b51}.study-facts dd{font-size:14px;line-height:1.65;margin:0}.study-content h4{font-size:14px;font-weight:600;margin:24px 0 9px}.study-content p{line-height:1.75}.study-content .study-limit{font-size:13px;border-left:2px solid #b3964a;padding:12px 18px;background:#f5f4ef;margin:24px 0}.study-source{font-size:13px;display:inline-block;line-height:1.65}.study-feature .study-index strong{color:#735316}.research-note{background:#f3f2ed;padding:30px 34px;margin-top:24px;max-width:900px}.research-note h3{font-size:21px;font-weight:500;letter-spacing:-.02em;margin-bottom:14px}.research-note p{font-size:14px;line-height:1.75;margin-bottom:20px}.research-note a{font-size:13px}.evidence-meaning{background:#f5f4ef;border-top:1px solid #e2e1d8;border-bottom:1px solid #e2e1d8}.evidence-meaning-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:38px}.evidence-meaning-grid h3{font-size:20px;font-weight:500;letter-spacing:-.025em;margin-bottom:15px}.evidence-meaning-grid p{font-size:14px;line-height:1.8}.evidence-bottom{display:grid;grid-template-columns:1.4fr 1fr;gap:60px;align-items:center}.evidence-bottom p{max-width:630px;line-height:1.8}.evidence-actions{display:flex;gap:16px;flex-direction:column;align-items:flex-start}.evidence-actions>a:last-child{font-size:13px;text-decoration:underline;text-underline-offset:5px}.research-context-link{font-size:14px;margin:24px 0 0}.evidence-field .proof-feature{margin-top:32px}@media(max-width:800px){.evidence-hero{padding:55px 0 35px}.evidence-intro{padding:38px 0}.evidence-intro-grid,.study,.evidence-bottom{grid-template-columns:1fr;gap:26px}.evidence-jump{gap:14px 24px;margin-top:28px}.evidence-section{padding:52px 0}.study{padding:32px 0}.study-index strong{font-size:37px;margin:15px 0 10px}.study-index p{max-width:none}.study-kind{margin-top:12px}.study-facts>div{grid-template-columns:1fr;gap:4px}.evidence-meaning-grid{grid-template-columns:1fr;gap:28px}.research-note{padding:24px}.evidence-hero h1{font-size:42px}}@media(prefers-reduced-motion:reduce){.evidence-page{scroll-behavior:auto}}