:root {
  --carbon: #1b1c1a;
  --carbon-2: #24261f;
  --gold: #c9a36a;
  --gold-hi: #e6c486;
  --gold-lo: #9c7a43;
  --plaster: #efebe3;
  --plaster-2: #e4dfd4;
  --concrete: #8d8f88;
  --ink: #232420;
  --white: #fbfaf7;
  --display: "Anton", "Bebas Neue", Impact, sans-serif;
  --body: "DM Sans", Inter, system-ui, sans-serif;
  --gutter: clamp(20px, 5vw, 72px);
  --radius-sm: 6px;
  --radius-lg: 18px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
html.lenis, html.lenis body { height: auto; }
body {
  margin: 0;
  background: var(--carbon);
  color: var(--white);
  font-family: var(--body);
  font-size: clamp(17px, 1.05vw + 10px, 19px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, video { display: block; max-width: 100%; }
h1, h2, h3 {
  font-family: var(--display);
  font-stretch: 112%;
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}
h2 { font-size: clamp(34px, 4.4vw, 64px); }
h3 { font-size: clamp(20px, 1.6vw, 24px); font-stretch: 105%; font-weight: 700; }
p { margin: 0 0 1em; max-width: 64ch; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--gold-hi); outline-offset: 3px; border-radius: 4px; }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--gold); color: var(--carbon); padding: 10px 16px; border-radius: var(--radius-sm);
  font-family: var(--display); font-weight: 700; text-decoration: none;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--gutter); }

.kicker {
  font-family: var(--display);
  font-weight: 600;
  font-size: 16px;
  color: var(--gold-lo);
  margin-bottom: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--display); font-weight: 700; font-stretch: 105%;
  font-size: 17px; text-decoration: none;
  padding: 16px 26px; border-radius: 999px;
  transition: transform .25s ease, background-color .25s ease, color .25s ease, box-shadow .25s ease;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-hi), var(--gold) 55%, var(--gold-lo));
  color: var(--carbon);
  box-shadow: 0 10px 30px -10px rgba(201, 163, 106, .6);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(201, 163, 106, .8); }
.btn-ghost { color: var(--white); border: 1.5px solid rgba(251, 250, 247, .4); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-hi); }
.btn-sm { padding: 11px 18px; font-size: 15px; }
.btn-lg { padding: 20px 34px; font-size: clamp(17px, 1.5vw, 21px); }

/* ---------- Top bar ---------- */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  padding: 14px var(--gutter);
  transition: background-color .35s ease, backdrop-filter .35s ease, padding .35s ease;
}
.topbar.is-solid { background: rgba(27, 28, 26, .82); backdrop-filter: blur(14px); padding-top: 10px; padding-bottom: 10px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { display: block; }
.brand-name {
  font-family: var(--display); font-weight: 800; font-stretch: 118%; font-size: 20px; color: var(--gold-hi);
  display: flex; flex-direction: column; line-height: 1.05;
}
.brand-name small { font-weight: 500; font-stretch: 100%; font-size: 12px; color: rgba(251, 250, 247, .7); letter-spacing: .04em; }
.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a {
  font-family: var(--display); font-weight: 600; font-size: 15px; text-decoration: none;
  color: rgba(251, 250, 247, .78); position: relative; padding: 6px 0;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.nav a:hover { color: var(--white); }
.nav a:hover::after { transform: scaleX(1); }

/* ---------- Fissurômetro (scroll gauge) ---------- */
.gauge {
  position: fixed; left: 18px; top: 50%; z-index: 40;
  height: 56vh; width: 54px; transform: translateY(-50%);
  pointer-events: none;
}
.gauge-scale {
  position: absolute; inset: 0 auto 0 0; width: 22px;
  border: 1px solid rgba(201, 163, 106, .45);
  border-radius: 4px;
  background:
    repeating-linear-gradient(to bottom, rgba(201,163,106,.75) 0 1px, transparent 1px 10px) left / 8px 100% no-repeat,
    repeating-linear-gradient(to bottom, rgba(201,163,106,.95) 0 2px, transparent 2px 50px) left / 14px 100% no-repeat,
    rgba(27, 28, 26, .35);
  backdrop-filter: blur(4px);
}
.gauge-marker {
  position: absolute; left: -4px; top: 0; width: 30px; height: 3px;
  background: var(--gold-hi); box-shadow: 0 0 12px var(--gold);
}
.gauge-marker span {
  position: absolute; left: 38px; top: -11px; white-space: nowrap;
  font-family: var(--display); font-weight: 600; font-size: 13px; color: var(--gold-hi);
  background: rgba(27, 28, 26, .7); padding: 2px 8px; border-radius: 4px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: flex-end;
  overflow: hidden; isolation: isolate;
}
.hero-media { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-stage {
  position: absolute; top: 0; height: 100%; aspect-ratio: 16 / 9; min-width: 100%;
  left: 50%; transform: translateX(var(--stage-x, -50%));
}
.hero-img { width: 100%; height: 100%; object-fit: cover; transform-origin: 65% 40%; }
.hero-media::after {
  z-index: 1;
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to top, rgba(27,28,26,.96) 8%, rgba(27,28,26,.55) 45%, rgba(27,28,26,.25) 70%, rgba(27,28,26,.6)),
    linear-gradient(to right, rgba(27,28,26,.75), transparent 60%);
}
.hero-crack { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 2; overflow: visible; }
.hero-crack path {
  fill: none; stroke: var(--gold-hi); stroke-width: 3.5; stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(230, 196, 134, .8));
}
.crack-reading {
  position: absolute; z-index: 3; left: 66%; top: 68%;
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px; border-left: 3px solid var(--gold);
  background: rgba(27, 28, 26, .72); backdrop-filter: blur(6px); border-radius: 0 8px 8px 0;
}
.reading-value { font-family: var(--display); font-weight: 800; font-size: 26px; font-stretch: 112%; color: var(--gold-hi); line-height: 1; }
.reading-note { font-family: var(--display); font-size: 13px; color: rgba(251, 250, 247, .7); }
.hero-content { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--gutter) clamp(72px, 12vh, 130px); }
.hero-title { font-size: clamp(46px, 8.2vw, 128px); font-stretch: 116%; letter-spacing: -0.02em; line-height: .98; }
.hero-title .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero-title .line > span { display: inline-block; }
.hero-title .gold > span {
  background: linear-gradient(100deg, var(--gold-hi), var(--gold) 50%, var(--gold-lo));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(18px, 1.4vw, 22px); color: rgba(251, 250, 247, .85); margin-top: 26px; max-width: 46ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; }
.scroll-cue {
  position: absolute; right: var(--gutter); bottom: 40px; width: 28px; height: 46px;
  border: 2px solid rgba(251, 250, 247, .5); border-radius: 16px;
}
.scroll-cue span {
  position: absolute; left: 50%; top: 9px; width: 4px; height: 9px; margin-left: -2px;
  border-radius: 2px; background: var(--gold-hi); animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } 100% { opacity: 0; } }

/* ---------- Sections common ---------- */
section { position: relative; }
.section-head { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px 64px; align-items: end; margin-bottom: clamp(40px, 6vw, 80px); }
.section-head p { color: inherit; opacity: .78; margin: 0; }
.fineprint { font-size: 14px; opacity: .6; max-width: 70ch; }

/* ---------- Problems ---------- */
.problems { background: var(--plaster); color: var(--ink); padding: clamp(90px, 12vw, 160px) 0; }
.problems-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .82fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.problem-list { list-style: none; margin: 0; padding: 0; counter-reset: p; border-top: 1px solid rgba(35, 36, 32, .18); }
.problem-list li { border-bottom: 1px solid rgba(35, 36, 32, .18); }
.problem-list button {
  all: unset; box-sizing: border-box; cursor: pointer; width: 100%;
  display: grid; grid-template-columns: 1fr; gap: 4px;
  padding: 22px 18px 22px 0; position: relative;
  transition: padding .35s cubic-bezier(.2, .8, .2, 1);
}
.problem-list button strong {
  font-family: var(--display); font-weight: 800; font-stretch: 110%;
  font-size: clamp(22px, 2.3vw, 34px); line-height: 1.1; color: var(--ink);
  transition: color .3s ease;
}
.problem-list button span { font-size: 16px; color: #5c5d57; max-width: 48ch; }
.problem-list button::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 0; height: 3px; background: var(--gold-lo);
  transition: width .35s cubic-bezier(.2, .8, .2, 1);
}
.problem-list button:hover, .problem-list button[aria-selected="true"] { padding-left: 46px; }
.problem-list button[aria-selected="true"]::before, .problem-list button:hover::before { width: 30px; }
.problem-list button[aria-selected="true"] strong { color: var(--gold-lo); }
.problem-list button:focus-visible { outline-offset: -3px; }

.viewer { margin: 0; position: sticky; top: 110px; }
.viewer-frame {
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--carbon); box-shadow: 0 40px 80px -40px rgba(27, 28, 26, .55);
}
.viewer-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.viewer-corner { position: absolute; width: 34px; height: 34px; border: 3px solid var(--white); z-index: 2; opacity: .9; }
.viewer-corner.tl { left: 18px; top: 18px; border-right: 0; border-bottom: 0; }
.viewer-corner.tr { right: 18px; top: 18px; border-left: 0; border-bottom: 0; }
.viewer-corner.bl { left: 18px; bottom: 18px; border-right: 0; border-top: 0; }
.viewer-corner.br { right: 18px; bottom: 18px; border-left: 0; border-top: 0; }
.viewer figcaption {
  font-family: var(--display); font-weight: 700; font-size: 16px; margin-top: 14px; color: var(--gold-lo);
}

/* ---------- Laudo ---------- */
.laudo { padding: clamp(100px, 13vw, 180px) 0; background: var(--carbon); }
.laudo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.laudo-text h2 { margin-bottom: 26px; }
.lead { font-size: clamp(20px, 1.6vw, 25px); color: var(--gold-hi); font-weight: 500; }
.laudo-text p:not(.lead):not(.kicker) { color: rgba(251, 250, 247, .8); }
.norm {
  margin-top: 30px; padding: 16px 20px; border-left: 3px solid var(--gold); background: var(--carbon-2);
  border-radius: 0 8px 8px 0; font-size: 16px;
}
.norm strong { font-family: var(--display); font-stretch: 108%; color: var(--gold-hi); display: block; font-size: 18px; }
.doc { perspective: 1400px; }
.doc-paper {
  position: relative; background: var(--white); color: var(--ink);
  border-radius: 10px; padding: clamp(28px, 3.4vw, 46px);
  box-shadow: 0 50px 100px -40px rgba(0, 0, 0, .8), 0 0 0 1px rgba(0, 0, 0, .04);
  transform-origin: 50% 100%;
}
.doc-head { display: flex; gap: 16px; align-items: center; padding-bottom: 22px; border-bottom: 2px solid var(--gold); }
.doc-head img { display: block; }
.doc-title { font-family: var(--display); font-weight: 800; font-stretch: 112%; font-size: 26px; margin: 0; line-height: 1.1; }
.doc-meta { margin: 2px 0 0; font-size: 14px; color: #6b6c66; }
.doc-sub { font-family: var(--display); font-weight: 700; font-size: 15px; margin: 24px 0 8px; color: var(--gold-lo); }
.doc-items { list-style: none; margin: 0; padding: 0; }
.doc-items li {
  display: flex; align-items: center; gap: 14px; padding: 13px 0;
  border-bottom: 1px dashed rgba(35, 36, 32, .2); font-size: 17px;
}
.doc-items i {
  flex: none; width: 26px; height: 26px; border-radius: 50%; border: 2px solid #b9b6ad; position: relative;
  transition: background-color .3s ease, border-color .3s ease;
}
.doc-items i::after {
  content: ""; position: absolute; left: 7px; top: 3px; width: 7px; height: 12px;
  border: solid var(--white); border-width: 0 3px 3px 0; transform: rotate(45deg) scale(0); transition: transform .3s ease .05s;
}
.doc-items li.is-done i { background: var(--gold-lo); border-color: var(--gold-lo); }
.doc-items li.is-done i::after { transform: rotate(45deg) scale(1); }
.doc-stamp {
  position: absolute; right: 26px; bottom: -22px; transform: rotate(-9deg);
  font-family: var(--display); font-weight: 800; font-stretch: 115%; font-size: 18px;
  color: #a23b2c; border: 3px solid #a23b2c; border-radius: 8px; padding: 8px 14px; background: var(--white);
  opacity: 0;
}
.doc-note { font-size: 14px; color: rgba(251, 250, 247, .55); margin-top: 40px; }

/* ---------- Steps ---------- */
.steps { background: var(--carbon-2); padding: clamp(90px, 11vw, 150px) 0 clamp(70px, 8vw, 110px); overflow: hidden; }
.steps-head { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px 64px; align-items: end; margin-bottom: 60px; }
.steps-head p { opacity: .78; margin: 0; }
.steps-track-wrap { position: relative; padding-left: var(--gutter); }
.steps-line { position: absolute; left: var(--gutter); right: 0; top: 34px; height: 2px; background: rgba(201, 163, 106, .2); }
.steps-line span { display: block; height: 100%; width: 100%; background: var(--gold); transform-origin: left; transform: scaleX(0); }
.steps-track { list-style: none; margin: 0; padding: 0 var(--gutter) 0 0; display: flex; gap: clamp(24px, 3vw, 44px); width: max-content; }
.steps-track li { width: clamp(280px, 30vw, 400px); position: relative; padding-top: 74px; }
.steps-track li::before {
  content: ""; position: absolute; left: 0; top: 26px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--carbon-2); border: 3px solid var(--gold);
}
.step-n {
  position: absolute; left: 36px; top: 16px;
  font-family: var(--display); font-weight: 900; font-stretch: 120%; font-size: 30px; color: var(--gold);
}
.steps-track h3 { margin-bottom: 12px; }
.steps-track p { color: rgba(251, 250, 247, .76); font-size: 17px; }

/* ---------- Tech ---------- */
.tech { padding: clamp(100px, 12vw, 170px) 0; background: var(--carbon); }
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.4vw, 32px); }
.tool { position: relative; }
.tool-img {
  position: relative; aspect-ratio: 1; border-radius: var(--radius-lg); overflow: hidden;
  background:
    radial-gradient(circle at 50% 58%, rgba(201, 163, 106, .32), transparent 58%),
    linear-gradient(160deg, #2a2c27, #161714);
  border: 1px solid rgba(201, 163, 106, .18);
  display: grid; place-items: center; margin-bottom: 22px; isolation: isolate;
}
.tool-img::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(135deg, #2b2dff, #8a1fd1 30%, #ff3d1f 62%, #ffd23f);
  clip-path: circle(0% at 50% 100%);
  transition: clip-path .7s cubic-bezier(.2, .8, .2, 1);
}
.tool-img::after {
  content: ""; position: absolute; left: 22%; right: 22%; bottom: 13%; height: 18px; z-index: -1;
  background: radial-gradient(ellipse, rgba(0, 0, 0, .55), transparent 70%);
  filter: blur(4px);
}
.tool:hover .tool-img::before { clip-path: circle(150% at 50% 100%); }
.tool-img img {
  width: 74%; height: 74%; object-fit: contain;
  filter: drop-shadow(0 24px 30px rgba(0, 0, 0, .55));
  animation: float 6s ease-in-out infinite;
  transition: transform .6s cubic-bezier(.2, .8, .2, 1);
}
.tool:nth-child(2) .tool-img img { animation-delay: -2s; }
.tool:nth-child(3) .tool-img img { width: 92%; animation-delay: -4s; }
.tool:hover .tool-img img { transform: scale(1.08) rotate(-3deg); }
@keyframes float { 0%, 100% { translate: 0 -6px; } 50% { translate: 0 8px; } }
.tool h3 { margin-bottom: 10px; }
.tool p { color: rgba(251, 250, 247, .75); font-size: 17px; }
.tech .fineprint { margin-top: 26px; }
.toolkit { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(28px, 4vw, 60px); align-items: center; margin-top: clamp(70px, 9vw, 120px); }
.toolkit-img { border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 16 / 9; }
.toolkit-img img { width: 100%; height: 120%; object-fit: cover; }
.toolkit-text h3 { font-size: clamp(26px, 2.6vw, 38px); margin-bottom: 18px; }
.toolkit-text p { color: rgba(251, 250, 247, .78); }

/* ---------- Budget ---------- */
.budget { background: var(--plaster); color: var(--ink); padding: clamp(90px, 11vw, 150px) 0; }
.budget-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(30px, 6vw, 90px); }
.budget-list { list-style: none; padding: 0; margin: 26px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.budget-list li {
  padding: 16px 18px; border: 1.5px solid rgba(35, 36, 32, .16); border-radius: 10px;
  font-family: var(--display); font-weight: 600; font-size: 16px; background: var(--white);
}
.budget .fineprint { opacity: .7; }

/* ---------- Reel ---------- */
.reel { background: var(--carbon); padding: clamp(90px, 11vw, 150px) 0; overflow: hidden; }
.reel-grid { display: grid; grid-template-columns: auto 1fr; gap: clamp(40px, 7vw, 120px); align-items: center; }
.phone {
  position: relative; width: clamp(240px, 24vw, 330px); aspect-ratio: 9 / 16;
  border-radius: 38px; padding: 10px; background: linear-gradient(145deg, #3a3b36, #121310);
  box-shadow: 0 50px 90px -30px rgba(0, 0, 0, .9), inset 0 0 0 1px rgba(255, 255, 255, .08);
}
.phone video { width: 100%; height: 100%; object-fit: cover; border-radius: 30px; }
.sound {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  font-family: var(--display); font-weight: 700; font-size: 14px;
  background: rgba(27, 28, 26, .8); color: var(--white); border: 1px solid rgba(255, 255, 255, .25);
  padding: 9px 16px; border-radius: 999px; cursor: pointer; backdrop-filter: blur(6px);
}
.sound[aria-pressed="true"] { background: var(--gold); color: var(--carbon); }
.reel-text h2 { margin-bottom: 22px; }
.reel-text p { color: rgba(251, 250, 247, .78); }

/* ---------- About ---------- */
.about { background: var(--plaster); color: var(--ink); padding: clamp(100px, 12vw, 170px) 0; }
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(36px, 6vw, 100px); align-items: start; }
.portrait { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4 / 5; }
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 8px;
  background: linear-gradient(90deg, var(--gold-hi), var(--gold-lo));
}
.about-text h2 { margin-bottom: 28px; }
.about-text > p { color: #45463f; }
.creds { margin: 34px 0 0; display: grid; gap: 0; border-top: 1px solid rgba(35, 36, 32, .18); }
.creds div { display: grid; grid-template-columns: 1fr 1.2fr; gap: 20px; padding: 14px 0; border-bottom: 1px solid rgba(35, 36, 32, .18); }
.creds dt { font-family: var(--display); font-weight: 700; font-size: 16px; }
.creds dd { margin: 0; font-size: 16px; color: #45463f; }

/* ---------- CTA ---------- */
.cta {
  padding: clamp(110px, 14vw, 200px) 0; text-align: center; overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 120%, rgba(201, 163, 106, .28), transparent 60%),
    var(--carbon);
}
.cta-inner { display: flex; flex-direction: column; align-items: center; }
.cta h2 { font-size: clamp(38px, 6vw, 92px); max-width: 16ch; margin-bottom: 26px; }
.cta p { color: rgba(251, 250, 247, .78); margin-bottom: 40px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid rgba(201, 163, 106, .2); padding: 40px 0 110px; background: var(--carbon); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 40px; }
.footer p { margin: 0; font-size: 14px; color: rgba(251, 250, 247, .6); }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 60; width: 62px; height: 62px; border-radius: 50%;
  background: #25d366; display: grid; place-items: center;
  box-shadow: 0 14px 30px -8px rgba(37, 211, 102, .6);
  transition: transform .25s ease;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 32px; height: 32px; fill: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .nav { display: none; }
  .topbar .btn-sm { margin-left: auto; white-space: nowrap; }
  .hero-stage { --stage-x: -68%; }
  .gauge { display: none; }
}
@media (max-width: 860px) {
  .section-head, .steps-head, .laudo-grid, .budget-grid, .about-grid, .toolkit { grid-template-columns: 1fr; }
  .problems-grid { grid-template-columns: 1fr; }
  .viewer { position: relative; top: 0; order: -1; }
  .viewer-frame { aspect-ratio: 4 / 4; }
  .tech-grid { grid-template-columns: 1fr; }
  .tool-img { aspect-ratio: 4 / 3; }
  .reel-grid { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .reel-text p { margin-inline: auto; }
  .budget-list { grid-template-columns: 1fr; }
  .steps-track { flex-direction: column; width: auto; padding-right: var(--gutter); }
  .steps-track li { width: auto; padding-top: 0; padding-left: 56px; }
  .steps-track li::before { top: 6px; }
  .step-n { position: static; display: block; margin-bottom: 6px; }
  .steps-line { left: calc(var(--gutter) + 8px); right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .steps-line span { transform: scaleY(0); transform-origin: top; }
  .crack-reading { left: auto; right: var(--gutter); top: 22%; }
  .brand-name small { display: none; }
  .creds div { grid-template-columns: 1fr; gap: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media (max-width: 520px) {
  .brand-name { display: none; }
  .hero-actions .btn { width: 100%; }
}

@media (max-width: 1500px) {
  .gauge-marker span { display: none; }
}

/* ---------- Type test: Anton (display) + DM Sans 500 (text) ---------- */
body { font-weight: 500; }
h1, h2, h3,
.brand-name, .reading-value, .doc-title, .step-n, .doc-stamp,
.problem-list button strong, .norm strong {
  font-family: var(--display);
  font-weight: 400;
  font-stretch: normal;
  text-transform: uppercase;
  letter-spacing: .02em;
}
h2 { font-size: clamp(42px, 5.4vw, 80px); line-height: 1.04; }
h3 { font-size: clamp(26px, 2.1vw, 32px); line-height: 1.02; }
.hero-title { font-size: clamp(60px, 10vw, 160px); line-height: .94; letter-spacing: .02em; }
.hero-title .line { padding-top: .28em; margin-top: -.28em; }
.hero-title .line > span { padding-top: .28em; margin-top: -.28em; }
.brand-name { font-size: 24px; letter-spacing: .04em; }
.brand-name small, .btn, .nav a, .kicker, .gauge-marker span, .reading-note,
.viewer figcaption, .doc-sub, .budget-list li, .sound, .creds dt, .skip {
  font-family: var(--body);
  font-weight: 500;
  font-stretch: normal;
  text-transform: none;
}
.btn { font-weight: 700; }
.creds dt { font-weight: 700; }
.reading-value { font-size: 34px; }
.doc-title { font-size: 34px; }
.step-n { font-size: 44px; top: 8px; }
.problem-list button strong { font-size: clamp(28px, 2.8vw, 42px); }
.norm strong { font-size: 24px; }
.doc-stamp { font-size: 22px; }
.cta h2 { font-size: clamp(48px, 7vw, 112px); }
.reading-value { text-transform: none; }

/* ---------- Problems: scroll-driven sequence ---------- */
.problems { overflow: visible; }
.problems-grid { align-items: center; }
.viewer { position: relative; top: 0; }
.viewer-frame { aspect-ratio: auto; height: min(68vh, 640px); }
.problem-progress { display: flex; gap: 6px; margin-bottom: 18px; }
.problem-progress span {
  flex: 1; height: 4px; border-radius: 2px; background: rgba(35, 36, 32, .15);
  position: relative; overflow: hidden;
}
.problem-progress span::after {
  content: ""; position: absolute; inset: 0; background: var(--gold-lo);
  transform: scaleX(0); transform-origin: left; transition: transform .45s cubic-bezier(.2, .8, .2, 1);
}
.problem-progress span.is-done::after { transform: scaleX(1); }
.problem-list button { padding-top: 16px; padding-bottom: 16px; }
.problem-list li:not(.is-active) button strong { opacity: .45; }
.problem-list li:not(.is-active) button span { opacity: .55; }
.problem-list button strong, .problem-list button span { transition: opacity .35s ease, color .35s ease; }

@media (max-width: 860px) {
  .problems-grid { display: flex; flex-direction: column; align-items: stretch; gap: 14px; background: var(--plaster); padding-bottom: 8px; }
  .viewer { order: -1; width: 100%; }
  .problem-progress { width: 100%; }
  .viewer-frame { height: 46vh; aspect-ratio: auto; }
  .viewer figcaption { display: none; }
  .problem-progress { margin: 0 0 6px; }
  .problem-list { border-top: 0; display: grid; }
  .problem-list li { grid-area: 1 / 1; border-bottom: 0; opacity: 0; transform: translateY(18px); pointer-events: none; transition: opacity .4s ease, transform .5s cubic-bezier(.2, .8, .2, 1); }
  .problem-list li.is-active { opacity: 1; transform: none; pointer-events: auto; }
  .problem-list li.is-active button strong, .problem-list li.is-active button span { opacity: 1; }
  .problem-list button { padding: 4px 0 0; }
  .problem-list button:hover, .problem-list button[aria-selected="true"] { padding-left: 0; }
  .problem-list button::before { display: none; }
  .problem-list button strong { font-size: clamp(34px, 9vw, 46px); }
  .problem-list button span { font-size: 17px; }
}

/* ---------- Cover: scroll-scrubbed crack sequence ---------- */
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-stage { display: none; }
.hero-media::after {
  background:
    linear-gradient(to top, rgba(27,28,26,.95) 6%, rgba(27,28,26,.55) 40%, rgba(27,28,26,.15) 68%, rgba(27,28,26,.45)),
    linear-gradient(to right, rgba(27,28,26,.7), transparent 62%);
}
.crack-reading { opacity: 0; transform: translateX(-16px); transition: opacity .5s ease, transform .6s cubic-bezier(.2,.8,.2,1); left: auto; right: calc(var(--gutter) + 40px); top: 25%; }
.crack-reading.is-on { opacity: 1; transform: none; }
@media (max-width: 860px) {
  .crack-reading { left: auto; right: var(--gutter); top: 16%; }
}

@media (min-width: 861px) {
  .problems-grid {
    grid-template-areas: "progress viewer" "list viewer";
    grid-template-rows: auto 1fr;
    align-items: start;
  }
  .problem-progress { grid-area: progress; }
  .problem-list { grid-area: list; }
  .viewer { grid-area: viewer; align-self: center; }
}

/* ---------- Equipment carousel (one at a time) ---------- */
.equip { position: relative; }
.equip-track { display: grid; }
.equip-slide {
  grid-area: 1 / 1;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(28px, 5vw, 80px); align-items: center;
  opacity: 0; visibility: hidden; pointer-events: none;
}
.equip-slide.is-active { opacity: 1; visibility: visible; pointer-events: auto; }
.equip-media {
  position: relative; aspect-ratio: 1; width: 100%; max-width: 600px; justify-self: center;
  border-radius: 28px; overflow: hidden; background: #1b1c1a;
  border: 1px solid rgba(201, 163, 106, .22);
  box-shadow: 0 50px 90px -40px rgba(0, 0, 0, .8);
  perspective: 1200px;
}
.equip-media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.equip-tag {
  display: inline-block; margin: 0 0 18px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid rgba(201, 163, 106, .5); color: var(--gold-hi); font-size: 15px;
}
.equip-text h3 { font-size: clamp(40px, 4.4vw, 68px); line-height: 1; margin-bottom: 22px; }
.equip-text p:last-child { font-size: clamp(17px, 1.3vw, 20px); color: rgba(251, 250, 247, .8); max-width: 40ch; }
.equip-controls {
  display: flex; align-items: center; gap: 24px; margin-top: clamp(26px, 4vw, 48px);
}
.equip-count { margin: 0; font-family: var(--display); font-size: 28px; letter-spacing: .04em; color: rgba(251, 250, 247, .5); }
.equip-count span { color: var(--gold-hi); }
.equip-dots { display: flex; gap: 10px; flex: 1; }
.equip-dots button {
  all: unset; cursor: pointer; height: 4px; flex: 1; max-width: 90px; border-radius: 2px;
  background: rgba(201, 163, 106, .25); position: relative; overflow: hidden;
}
.equip-dots button::after {
  content: ""; position: absolute; inset: 0; background: var(--gold-hi);
  transform: scaleX(0); transform-origin: left; transition: transform .5s cubic-bezier(.2, .8, .2, 1);
}
.equip-dots button[aria-selected="true"]::after { transform: scaleX(1); }
.equip-dots button:focus-visible { outline: 3px solid var(--gold-hi); outline-offset: 4px; }
.equip-arrows { display: flex; gap: 12px; }
.equip-arrow {
  width: 60px; height: 60px; border-radius: 50%; cursor: pointer;
  display: grid; place-items: center;
  background: transparent; border: 1.5px solid rgba(201, 163, 106, .55); color: var(--gold-hi);
  transition: background-color .25s ease, color .25s ease, transform .25s cubic-bezier(.2, .8, .2, 1);
}
.equip-arrow svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.equip-arrow:hover { background: var(--gold); color: var(--carbon); transform: scale(1.06); }
.equip-arrow:active { transform: scale(.95); }

@media (max-width: 860px) {
  .equip-slide { grid-template-columns: 1fr; gap: 22px; }
  .equip-media { max-width: none; border-radius: 22px; }
  .equip-text h3 { font-size: clamp(34px, 9vw, 46px); margin-bottom: 14px; }
  .equip-controls { gap: 16px; }
  .equip-arrow { width: 52px; height: 52px; }
}
.portrait img { object-position: 50% 22%; }

/* Problem viewer: stacked media, class-based GPU fade (no clip-path / no DOM churn) */
.viewer-frame { contain: layout paint; }
.viewer-media {
  opacity: 0; transform: scale(1.06);
  transition: opacity .45s ease, transform .7s cubic-bezier(.2, .8, .2, 1);
  will-change: opacity, transform;
}
.viewer-media.is-active { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .viewer-media { transform: none; }
}

/* ---------- 3D models in the equipment carousel ---------- */
.equip-media.has-3d {
  background:
    radial-gradient(circle at 50% 58%, rgba(201, 163, 106, .34), rgba(201, 163, 106, 0) 55%),
    linear-gradient(160deg, #2a2c27, #1b1c1a 70%);
}
.equip-media.has-3d::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(201, 163, 106, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 163, 106, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(circle at 50% 55%, #000 20%, transparent 68%);
  mask-image: radial-gradient(circle at 50% 55%, #000 20%, transparent 68%);
}
.equip-media model-viewer {
  position: absolute; inset: 0; width: 100%; height: 100%;
  --poster-color: transparent;
  background: transparent;
  cursor: grab;
}
.equip-media model-viewer:active { cursor: grabbing; }
.equip-hint {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(27, 28, 26, .72); backdrop-filter: blur(6px);
  border: 1px solid rgba(201, 163, 106, .35);
  color: var(--gold-hi); font-size: 13px; white-space: nowrap; pointer-events: none;
  transition: opacity .5s ease, transform .5s ease;
  animation: hintPulse 2.6s ease-in-out infinite;
}
.equip-hint svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.equip-media.was-used .equip-hint { opacity: 0; transform: translateX(-50%) translateY(8px); }
@keyframes hintPulse { 0%, 100% { opacity: .75; } 50% { opacity: 1; } }

@media (max-width: 860px) {
  .equip-controls { padding-right: 76px; }
  .equip-dots button { max-width: 40px; }
}

/* ---------- Thermal camera demo ---------- */
.thermal-demo { cursor: none; touch-action: pan-y; }
.thermal-demo canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.thermal-demo.was-used .equip-hint { opacity: 0; transform: translateX(-50%) translateY(8px); }

/* Header wordmark logo */
.brand .brand-logo { height: 40px; width: auto; filter: drop-shadow(0 2px 6px rgba(0,0,0,.35)); }
@media (max-width: 520px) { .brand .brand-logo { height: 32px; } }

/* Problems: continuous card list (each pathology is its own card) */
.problem-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 56px clamp(20px, 2.6vw, 40px); list-style: none; margin: 8px 0 0; padding: 0; }
.problem-card { opacity: 0; transform: translateY(36px); transition: opacity .6s ease, transform .8s cubic-bezier(.2, .8, .2, 1); }
.problem-card.is-in { opacity: 1; transform: none; }
.problem-card-media {
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--carbon); box-shadow: 0 30px 60px -34px rgba(27, 28, 26, .6);
}
.problem-card-media video, .problem-card-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 1.2s cubic-bezier(.2, .8, .2, 1); }
.problem-card:hover .problem-card-media video, .problem-card:hover .problem-card-media img { transform: scale(1.04); }
.problem-card-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(27, 28, 26, .55), transparent 40%); pointer-events: none; }
.problem-card-tag {
  position: absolute; left: 14px; top: 14px; z-index: 2;
  background: #e0352b; color: #fff; font: 700 15px/1 var(--body); letter-spacing: .01em;
  padding: 9px 13px; border-radius: 8px; box-shadow: 0 10px 24px rgba(0, 0, 0, .35);
  transform: rotate(-2deg);
}
.problem-card-tag::before { content: "⚠ "; }
.problem-card-n {
  position: absolute; right: 16px; bottom: 10px; z-index: 2;
  font-family: var(--display); font-size: 56px; line-height: 1; color: var(--white); letter-spacing: .02em;
}
.problem-card-n small { font-size: 20px; color: var(--gold-hi); margin-left: 2px; }
.problem-card h3 { font-family: var(--display); font-weight: 400; font-size: clamp(26px, 2.2vw, 32px); line-height: 1.1; color: var(--ink); margin: 18px 0 6px; padding-top: .1em; }
.problem-card p { margin: 0; font-size: 16px; color: #5c5d57; max-width: 40ch; }
@media (min-width: 861px) {
  .problem-card:nth-child(3n + 2) { transition-delay: .12s; }
  .problem-card:nth-child(3n + 3) { transition-delay: .24s; }
}
@media (max-width: 1100px) { .problem-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) { .problem-cards { grid-template-columns: 1fr; gap: 40px; } }
@media (prefers-reduced-motion: reduce) { .problem-card { opacity: 1; transform: none; } }

/* Equipment: side-by-side cards (same rhythm as the problem cards) */
.equip-track { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 56px clamp(20px, 2.6vw, 40px); align-items: start; }
.equip-slide {
  grid-area: auto; display: block;
  opacity: 0; visibility: visible; pointer-events: auto;
  transform: translateY(36px); transition: opacity .6s ease, transform .8s cubic-bezier(.2, .8, .2, 1);
}
.equip-slide.is-in { opacity: 1; transform: none; }
.equip-media { aspect-ratio: 4 / 5; max-width: none; border-radius: var(--radius-lg); }
.equip-text { padding-top: 22px; }
.equip-tag { margin-bottom: 14px; font-size: 14px; }
.equip-text h3 { font-size: clamp(28px, 2.3vw, 36px); line-height: 1.05; margin-bottom: 10px; }
.equip-text p:last-child { font-size: 16px; }
.equip-hint { white-space: nowrap; }
@media (max-width: 1100px) { .equip-track { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) {
  .equip-track { grid-template-columns: 1fr; gap: 44px; }
  .equip-media { aspect-ratio: 1; }
  .equip-text h3 { font-size: clamp(30px, 8vw, 40px); }
}
@media (prefers-reduced-motion: reduce) { .equip-slide { opacity: 1; transform: none; } }

/* Contact: WhatsApp + e-mail */
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.footer a[href^="mailto:"] { color: var(--gold-hi); text-decoration: none; }
.footer a[href^="mailto:"]:hover { text-decoration: underline; }
@media (max-width: 520px) {
  .cta-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .cta-actions .btn { text-align: center; justify-content: center; }
}