/* Self-hosted fonts (latin subset covers pt-BR); variable files, same families and weights as before */
@font-face { font-family: "Familjen Grotesk"; font-style: normal; font-weight: 500 700; font-display: swap; src: url("/assets/fonts/familjen-grotesk-latin.woff2") format("woff2"); }
@font-face { font-family: "Onest"; font-style: normal; font-weight: 400 600; font-display: swap; src: url("/assets/fonts/onest-latin.woff2") format("woff2"); }

/* Odonto Modular · concept preview
   Hybrid: graphite scenes for the problem, paper sections for the answer, turquoise from the logo as the only accent. */

:root {
  --graphite: oklch(0.235 0.009 205);
  --graphite-2: oklch(0.29 0.01 205);
  --paper: oklch(0.975 0.006 185);
  --paper-2: oklch(0.94 0.009 185);
  --ink: oklch(0.24 0.012 205);
  --ink-soft: oklch(0.43 0.012 205);
  --mist: oklch(0.95 0.008 185);
  --mist-soft: oklch(0.78 0.012 195);
  --tq: oklch(0.74 0.115 188);       /* #30c1bd, logo turquoise */
  --tq-deep: oklch(0.52 0.09 190);
  --tq-ink: oklch(0.2 0.03 195);

  --f-display: "Familjen Grotesk", system-ui, sans-serif;
  --f-body: "Onest", system-ui, sans-serif;

  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.92rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.12rem);
  --step-1: clamp(1.25rem, 1.15rem + 0.5vw, 1.55rem);
  --step-2: clamp(1.7rem, 1.4rem + 1.4vw, 2.6rem);
  --step-3: clamp(2.3rem, 1.6rem + 3.2vw, 4.4rem);
  --step-4: clamp(3rem, 1.6rem + 6.5vw, 7.6rem);

  --gutter: clamp(1rem, 4vw, 4rem);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--graphite);
  color: var(--mist);
  font: 400 var(--step-0)/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }

.skip { position: absolute; left: -999px; top: 0; }
.skip:focus { left: 1rem; top: 1rem; z-index: 99; background: var(--paper); color: var(--ink); padding: .5rem 1rem; }

/* ---------- type ---------- */
.display {
  font: 700 var(--step-3)/1.02 var(--f-display);
  letter-spacing: -0.03em;
  text-wrap: balance;
}
.display em { font-style: normal; color: var(--tq); }
.display--xl { font-size: var(--step-4); line-height: 0.95; letter-spacing: -0.04em; }
.h2 {
  font: 600 var(--step-2)/1.08 var(--f-display);
  letter-spacing: -0.025em;
  text-wrap: balance;
  max-width: 22ch;
}
.eyebrow {
  font: 600 var(--step--1)/1.3 var(--f-body);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tq);
  margin-bottom: 1.1rem;
}
.eyebrow--ink { color: var(--tq-deep); }
.lede { font-size: var(--step-1); line-height: 1.45; color: var(--mist-soft); max-width: 34ch; margin-top: 1.4rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 1.6rem;
  border-radius: 999px; border: 1.5px solid var(--tq);
  background: var(--tq); color: var(--tq-ink);
  font: 600 var(--step-0)/1 var(--f-body); text-decoration: none;
  transition: transform .35s var(--ease-out), background-color .25s, color .25s;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid var(--mist); outline-offset: 3px; }
.btn--ghost { background: transparent; color: var(--mist); border-color: oklch(0.95 0.008 185 / .45); }
.btn--ghost:hover { border-color: var(--tq); color: var(--tq); }
.btn--ink { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn--small { min-height: 40px; padding: 0 1.1rem; font-size: var(--step--1); }

/* ---------- top bar ---------- */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; gap: 2rem;
  padding: 1rem var(--gutter);
  transition: background-color .4s, color .4s, box-shadow .4s;
}
.topbar.is-light { background: oklch(0.975 0.006 185 / .92); color: var(--ink); box-shadow: 0 1px 0 oklch(0.24 0.012 205 / .08); -webkit-backdrop-filter: saturate(1.4) blur(10px); backdrop-filter: saturate(1.4) blur(10px); }
.topbar.is-accent { background: oklch(0.235 0.009 205 / .94); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.brand { position: relative; width: 112px; }
.brand__mark { width: 112px; height: auto; transition: opacity .4s; }
.brand__mark--light { position: absolute; inset: 0; opacity: 0; }
.topbar.is-light .brand__mark--dark { opacity: 0; }
.topbar.is-light .brand__mark--light { opacity: 1; }
.topbar__nav { display: flex; gap: 1.8rem; margin-left: auto; font-size: var(--step--1); font-weight: 500; }
.topbar__nav a { text-decoration: none; opacity: .8; }
.topbar__nav a:hover { opacity: 1; color: var(--tq); }
.topbar.is-light .topbar__nav a:hover { color: var(--tq-deep); }

/* ---------- scene ---------- */
.scene { position: relative; height: 520vh; }
.scene__sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.scene__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.scene__shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, oklch(0.18 0.01 205 / .78) 0%, oklch(0.18 0.01 205 / .35) 45%, transparent 70%),
    linear-gradient(0deg, oklch(0.18 0.01 205 / .55) 0%, transparent 35%);
}
.beat { position: absolute; z-index: 2; }
.beat--intro { left: var(--gutter); bottom: clamp(5rem, 14vh, 9rem); max-width: 40rem; }
.beat--outro {
  left: var(--gutter); bottom: clamp(4rem, 10vh, 7rem);
  opacity: 0; visibility: hidden;
}
.beat--outro .display { color: var(--paper); text-shadow: 0 2px 40px oklch(0.18 0.01 205 / .45); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }

.scroll-cue { display: flex; align-items: center; gap: .8rem; margin-top: 2.4rem; font-size: var(--step--1); color: var(--mist-soft); }
.scroll-cue span { width: 1.5px; height: 2.4rem; background: linear-gradient(var(--tq), transparent); animation: cue 2s var(--ease-out) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

.tags { list-style: none; margin: 0; padding: 0; position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.tag {
  position: absolute; left: 0; top: 0;
  display: flex; align-items: center; gap: .55rem;
  padding: .45rem .8rem .45rem .55rem;
  border-radius: 999px;
  background: oklch(0.2 0.01 205 / .78);
  border: 1px solid oklch(0.74 0.115 188 / .55);
  color: var(--paper);
  font: 500 var(--step--1)/1 var(--f-body);
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, -50%) scale(.9);
}
.tag::before {
  content: ""; width: .55rem; height: .55rem; border-radius: 50%;
  background: var(--tq); box-shadow: 0 0 0 4px oklch(0.74 0.115 188 / .25);
}
.tag.is-on { opacity: 1; transform: translate(-50%, -50%) scale(1); transition: opacity .5s var(--ease-out), transform .6s var(--ease-out); }
.tag.is-off-canvas { display: none; }

.counter {
  position: absolute; right: var(--gutter); bottom: clamp(1.4rem, 5vh, 3rem); z-index: 2;
  display: grid; grid-template-columns: auto auto; align-items: baseline; column-gap: .2rem;
  font-family: var(--f-display); color: var(--paper);
  opacity: 0;
}
.counter__num { font-size: var(--step-3); font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; color: var(--tq); }
.counter__of { font-size: var(--step-1); opacity: .6; }
.counter__label { grid-column: 1 / -1; font: 500 var(--step--1)/1.2 var(--f-body); color: var(--mist-soft); }

/* ---------- light sections ---------- */
[data-theme="light"] { background: var(--paper); color: var(--ink); }

.how {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 6vw, 7rem);
  padding: clamp(5rem, 14vh, 10rem) var(--gutter) clamp(4rem, 10vh, 7rem);
}
.how__note { margin-top: 1.6rem; color: var(--ink-soft); max-width: 34ch; font-size: var(--step-1); line-height: 1.45; }
/* blueprint grid: the floor guide lines of the scene, carried into the light sections */
.how {
  background-image:
    linear-gradient(oklch(0.52 0.09 190 / .07) 1px, transparent 1px),
    linear-gradient(90deg, oklch(0.52 0.09 190 / .07) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: -1px -1px;
}
.how::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 40%;
  background: linear-gradient(transparent, var(--paper)); pointer-events: none;
}
.how > * { position: relative; z-index: 1; }
.steps { --fill: 0; position: relative; list-style: none; margin: 0; padding: 0 0 0 1.6rem; display: grid; gap: clamp(2rem, 5vh, 3.4rem); }
.steps::before, .steps::after {
  content: ""; position: absolute; left: 0; top: .4rem; bottom: .4rem; width: 2px; border-radius: 2px;
}
.steps::before { background: oklch(0.24 0.012 205 / .12); }
.steps::after { background: var(--tq); transform-origin: top; transform: scaleY(var(--fill)); }
.step { position: relative; display: grid; grid-template-columns: 4.2rem 1fr; column-gap: 1.2rem; padding: 1.4rem 1.4rem 1.6rem; border-radius: 6px; background: oklch(0.975 0.006 185 / .85); box-shadow: 0 1px 0 oklch(0.24 0.012 205 / .06), 0 18px 40px -28px oklch(0.24 0.012 205 / .35); }
.step::before {
  content: ""; position: absolute; left: calc(-1.6rem - 5px); top: 1.9rem; width: 12px; height: 12px; border-radius: 50%;
  background: var(--paper); border: 2px solid oklch(0.24 0.012 205 / .25); transition: background-color .4s, border-color .4s, box-shadow .4s;
}
.step.is-reached::before { background: var(--tq); border-color: var(--tq); box-shadow: 0 0 0 6px oklch(0.74 0.115 188 / .2); }
.step__n { grid-row: span 2; font: 700 var(--step-2)/1 var(--f-display); color: oklch(0.24 0.012 205 / .25); letter-spacing: -0.03em; transition: color .4s; }
.step.is-reached .step__n { color: var(--tq-deep); }
.step__t { font: 600 var(--step-1)/1.2 var(--f-display); letter-spacing: -0.015em; margin-bottom: .5rem; }
.step p { color: var(--ink-soft); max-width: 48ch; }
.how__line { display: none; }

/* ---------- person (dark) ---------- */
.person {
  display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); grid-template-rows: auto auto;
  gap: clamp(1.5rem, 4vw, 4rem);
  padding: clamp(5rem, 14vh, 10rem) var(--gutter);
  background: var(--graphite);
  align-items: center;
}
.person__photo { margin: 0; grid-row: span 2; border-radius: 4px; overflow: hidden; aspect-ratio: 4 / 5; }
.person__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 62% 30%; filter: saturate(.9) contrast(1.03); }
.person__text { display: grid; gap: 1.2rem; max-width: 36rem; }
.person__text .h2 { max-width: 20ch; }
.person__text p:not(.eyebrow):not(.person__sign) { color: var(--mist-soft); }
.person__sign { font: 600 var(--step-0)/1 var(--f-display); color: var(--tq); }
.person__aside { margin: 0; border-radius: 4px; overflow: hidden; max-width: 30rem; aspect-ratio: 3 / 2; }
.person__aside img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- group (accent drench) ---------- */
.group { background: var(--tq); color: var(--tq-ink); padding: clamp(5rem, 14vh, 10rem) var(--gutter); }
.group__inner { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 5vw, 5rem); align-items: end; }
.group__title { font-size: var(--step-3); max-width: 14ch; }
.group__list { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; font-size: var(--step-1); line-height: 1.35; }
.group__list li { padding-top: .9rem; border-top: 1.5px solid oklch(0.2 0.03 195 / .25); }
.group .btn { grid-column: 1 / -1; justify-self: start; }

/* ---------- kit ---------- */
.kit {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(5rem, 12vh, 9rem) var(--gutter);
}
.kit__copy { display: grid; gap: 1.2rem; align-content: start; }
.kit__copy p { color: var(--ink-soft); max-width: 52ch; }
.kit__form { display: grid; gap: .5rem; align-content: start; background: var(--paper-2); padding: clamp(1.4rem, 3vw, 2.4rem); border-radius: 6px; }
.kit__form label { font-weight: 500; font-size: var(--step--1); margin-top: .6rem; }
.kit__form input {
  min-height: 50px; padding: 0 1rem; border-radius: 6px;
  border: 1px solid oklch(0.24 0.012 205 / .2); background: var(--paper);
  font: 400 var(--step-0)/1 var(--f-body); color: var(--ink);
}
.kit__form input:focus-visible { outline: 2px solid var(--tq-deep); outline-offset: 1px; }
.kit__form .btn { margin-top: 1rem; }
.kit__status { min-height: 1.4em; font-size: var(--step--1); color: var(--tq-deep); }

/* ---------- footer ---------- */
.foot { display: grid; gap: .6rem; justify-items: start; padding: 4rem var(--gutter); background: var(--graphite); color: var(--mist-soft); font-size: var(--step--1); }
.foot__small { opacity: .6; }

/* ---------- reveal helpers (JS adds) ---------- */
.reveal { opacity: 0; transform: translateY(24px); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .topbar__nav { display: none; }
  .topbar { justify-content: space-between; }
  .how, .person, .group__inner, .kit { grid-template-columns: 1fr; }
  .person__photo { grid-row: auto; aspect-ratio: 4 / 4.4; }
  .step { grid-template-columns: 2.6rem 1fr; column-gap: .8rem; padding: 1.2rem 1.1rem 1.3rem; }
  .step__n { font-size: var(--step-1); }
  .scene__shade { background: linear-gradient(0deg, oklch(0.18 0.01 205 / .85) 0%, oklch(0.18 0.01 205 / .4) 45%, transparent 75%); }
  .beat--intro { bottom: 4.5rem; right: var(--gutter); }
  .counter { top: 5.5rem; bottom: auto; right: var(--gutter); }
  .counter__num { font-size: var(--step-2); }
}

@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- static scene: reduced motion, or GSAP/ScrollTrigger failed to load (class set by main.js) ----------
   Flow layout: intro text, then the assembled room with its seven labels, then the closing text. No pinning, no overlap. */
.is-static-scene .reveal { opacity: 1; transform: none; }
.is-static-scene .scene { height: auto; background: var(--graphite); overflow-x: clip; }
.is-static-scene .scene__sticky { position: relative; height: auto; overflow: visible; display: grid; grid-template-columns: minmax(0, 1fr); }
.is-static-scene .scene__sticky > * { grid-column: 1; }
.is-static-scene .beat { position: relative; left: auto; right: auto; bottom: auto; max-width: none; opacity: 1; visibility: visible; transform: none; }
.is-static-scene .beat--intro { grid-row: 1; padding: clamp(7rem, 16vh, 9rem) var(--gutter) clamp(2rem, 5vh, 3.5rem); }
.is-static-scene .beat--intro > * { max-width: 40rem; }
.is-static-scene .beat--outro { grid-row: 3; padding: clamp(2.5rem, 6vh, 4rem) var(--gutter) clamp(3.5rem, 9vh, 6rem); }
.is-static-scene .scroll-cue, .is-static-scene .counter, .is-static-scene .scene__shade { display: none; }
.is-static-scene .scene__canvas { position: relative; grid-row: 2; height: auto; aspect-ratio: 16 / 9; }
.is-static-scene .tags { grid-row: 2; position: relative; inset: auto; }
.is-static-scene .tag { opacity: 1; transform: translate(-50%, -50%); }
@media (max-width: 767px) {
  /* narrow screens: the frame is cropped, so the labels become a readable list under it */
  .is-static-scene .scene__canvas { aspect-ratio: 4 / 5; }
  .is-static-scene .tags { grid-row: 3; display: flex; flex-wrap: wrap; gap: .6rem; padding: 1.4rem var(--gutter) 0; }
  .is-static-scene .tag { position: relative; left: auto !important; top: auto !important; transform: none; }
  .is-static-scene .tag.is-off-canvas { display: flex; }
  .is-static-scene .beat--outro { grid-row: 4; }
}