/* =========================================================
   Tecemos , protótipo de home v2 (versão aprimorada)
   Sistema gráfico da trama, gradientes, animações de scroll.
   Paleta da marca: petróleo #0E6786, ciano #13F0FC, laranja #F15A24, vermelho #C1272D.
   ========================================================= */

:root {
  --petrol: #0E6786;
  --petrol-700: #0b5169;
  --petrol-800: #093f52;
  --petrol-900: #06303f;
  --petrol-950: #04222d;
  --petrol-050: #eef4f6;
  --petrol-100: #dbe9ec;
  --petrol-200: #bcd6dc;

  --cyan: #13f0fc;
  --cyan-soft: #7ff5fb;

  --orange: #f15a24;
  --orange-400: #ff7a45;
  --orange-600: #d8481a;
  --orange-700: #b93c15;
  --red: #c1272d;

  --ink: #14242b;
  --slate: #4d5f67;
  --slate-light: #6c7e85;
  --line: #e2e8ea;
  --paper: #ffffff;
  --paper-2: #f5f8f8;

  --grad-petrol: linear-gradient(135deg, #0E6786 0%, #093f52 55%, #06303f 100%);
  --grad-deep: linear-gradient(160deg, #0b4a5f 0%, #06303f 45%, #041d27 100%);
  --grad-orange: linear-gradient(135deg, #ff7a45 0%, #f15a24 55%, #d8481a 100%);
  --grad-cyan-petrol: linear-gradient(120deg, #13f0fc 0%, #0E6786 60%);
  --grad-border: linear-gradient(140deg, var(--petrol) 0%, var(--cyan) 45%, var(--orange) 100%);

  --font-head: "Poppins", -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-serif: "PT Serif", Georgia, "Times New Roman", serif;
  --font-body: "Poppins", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-6: 24px; --space-8: 32px; --space-12: 48px; --space-16: 64px;
  --space-24: 96px; --space-32: 128px;

  --wrap: 1200px;
  --radius: 6px;
  --radius-lg: 14px;
  --ease: cubic-bezier(0.22, 0.61, 0.24, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* trama SVG (linhas finas cruzadas, tom petróleo) */
  --weave: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='36' height='36' viewBox='0 0 36 36'%3E%3Cg fill='none' stroke='%230E6786' stroke-width='1.4' stroke-opacity='0.5'%3E%3Cpath d='M0 6h36M0 15h36M0 24h36M0 33h36'/%3E%3Cpath d='M6 0v36M15 0v36M24 0v36M33 0v36'/%3E%3C/g%3E%3C/svg%3E");
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--orange); color: #fff; }

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

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
  color: var(--ink);
}
h1 { font-size: clamp(2.5rem, 6vw, 4.25rem); font-weight: 700; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.85rem, 3.8vw, 2.85rem); }
h3 { font-size: clamp(1.1rem, 1.7vw, 1.32rem); }

p { margin: 0 0 var(--space-4); max-width: 64ch; }

a { color: var(--petrol-700); text-decoration: none; }

strong { font-weight: 600; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* ---------- utilitários ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--space-6); position: relative; z-index: 2; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--space-4); top: -60px; z-index: 500;
  background: var(--ink); color: #fff; padding: var(--space-3) var(--space-4);
  border-radius: var(--radius); transition: top .18s var(--ease);
}
.skip-link:focus { top: var(--space-4); color: #fff; }

:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 3px; }

/* eyebrow com traço laranja */
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-serif); font-style: italic; font-size: 1.02rem;
  color: var(--petrol-700); margin: 0 0 var(--space-4);
}
.eyebrow-tick {
  width: 30px; height: 2px; background: var(--grad-orange); border-radius: 2px;
  flex: none; transform-origin: left; animation: tick-grow .7s var(--ease-out) both;
}
.eyebrow-light { color: rgba(255,255,255,0.82); }
.eyebrow-center { justify-content: center; }
@keyframes tick-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* número-fantasma da seção */
.ghost-num {
  position: absolute; top: -0.55em; left: -0.06em; z-index: 0;
  font-family: var(--font-head); font-weight: 700; font-size: clamp(5rem, 13vw, 10rem);
  line-height: 1; letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--petrol-100);
  pointer-events: none; user-select: none;
}
.ghost-num-light { -webkit-text-stroke-color: rgba(255,255,255,0.14); }

/* ---------- botões ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: var(--space-3) var(--space-8);
  font-family: var(--font-head); font-weight: 500; font-size: 0.98rem; letter-spacing: 0.01em;
  border-radius: var(--radius); cursor: pointer; overflow: hidden;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-orange {
  background: var(--grad-orange); color: #fff;
  box-shadow: 0 10px 30px -8px rgba(241,90,36,0.55), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-orange::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255,255,255,0.35) 50%, transparent 80%);
  transform: translateX(-120%); transition: transform .6s var(--ease);
}
.btn-orange:hover { box-shadow: 0 16px 40px -8px rgba(241,90,36,0.6), inset 0 1px 0 rgba(255,255,255,0.25); }
.btn-orange:hover::after { transform: translateX(120%); }
.btn-orange span { position: relative; z-index: 1; }
.btn-lg { min-height: 58px; padding: var(--space-4) var(--space-12); font-size: 1.05rem; }

.btn-glass {
  background: rgba(255,255,255,0.08); color: #fff;
  border: 1.5px solid rgba(255,255,255,0.35); backdrop-filter: blur(4px);
}
.btn-glass:hover { background: rgba(255,255,255,0.16); border-color: #fff; }

.btn-outline {
  background: transparent; color: var(--petrol-700);
  border: 1.5px solid var(--petrol-200);
}
.btn-outline:hover { background: var(--petrol); border-color: var(--petrol); color: #fff; box-shadow: 0 12px 30px -10px rgba(14,103,134,0.5); }

/* links com sublinhado animado */
.card-link, .model-link {
  position: relative; font-family: var(--font-head); font-weight: 500; font-size: 0.92rem;
  color: var(--petrol-700); background-image: linear-gradient(var(--orange), var(--orange));
  background-size: 0% 2px; background-position: 0 100%; background-repeat: no-repeat;
  transition: background-size .3s var(--ease), color .2s var(--ease);
  padding-bottom: 2px;
}
.card-link::after, .model-link::after { content: "\00a0\2192"; display: inline-block; transition: transform .2s var(--ease); }
.card-link:hover, .model-link:hover { color: var(--orange-700); background-size: 100% 2px; }
.card-link:hover::after, .model-link:hover::after { transform: translateX(4px); }
.card-link-light { color: var(--cyan-soft); }
.card-link-light:hover { color: #fff; }

/* ---------- barra de progresso ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 300;
  background: rgba(14,103,134,0.12);
}
.scroll-progress span {
  display: block; height: 100%; width: 0;
  background: var(--grad-orange);
  box-shadow: 0 0 12px rgba(241,90,36,0.6);
}

/* ---------- header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), backdrop-filter .3s var(--ease);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 80px; }
.brand { display: inline-flex; line-height: 0; position: relative; }
.brand img { width: 142px; height: auto; transition: opacity .3s var(--ease); }
.brand-dark { position: absolute; inset: 0; opacity: 0; }

.site-header.is-scrolled {
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(180%) blur(10px);
  box-shadow: 0 1px 0 var(--line), 0 8px 30px -12px rgba(6,48,63,0.15);
}
.site-header.is-scrolled .brand-light { opacity: 0; }
.site-header.is-scrolled .brand-dark { opacity: 1; }

.site-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: var(--space-6); }
.nav-list a { font-family: var(--font-head); font-size: 0.95rem; color: rgba(255,255,255,0.85); transition: color .2s var(--ease); }
.nav-list a:hover { color: #fff; }
.site-header.is-scrolled .nav-list a { color: var(--slate); }
.site-header.is-scrolled .nav-list a:hover { color: var(--petrol-900); }

.nav-cta a {
  border: 1.5px solid rgba(255,255,255,0.4); border-radius: var(--radius);
  padding: 10px 18px; color: #fff !important; font-weight: 500;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.nav-cta a:hover { background: var(--orange); border-color: var(--orange); }
.site-header.is-scrolled .nav-cta a { border-color: var(--petrol-200); color: var(--petrol-700) !important; }
.site-header.is-scrolled .nav-cta a:hover { background: var(--orange); border-color: var(--orange); color: #fff !important; }

.nav-toggle {
  display: none; width: 46px; height: 46px; border: 1px solid rgba(255,255,255,0.4);
  border-radius: var(--radius); background: rgba(255,255,255,0.1); cursor: pointer; position: relative;
}
.site-header.is-scrolled .nav-toggle { border-color: var(--line); background: #fff; }
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  content: ""; position: absolute; left: 13px; width: 20px; height: 2px; background: #fff;
  transition: transform .2s var(--ease), opacity .2s var(--ease), background .2s var(--ease);
}
.site-header.is-scrolled .nav-toggle-bar,
.site-header.is-scrolled .nav-toggle-bar::before,
.site-header.is-scrolled .nav-toggle-bar::after { background: var(--ink); }
.nav-toggle-bar { top: 22px; }
.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(9rem, 15vw, 12rem) 0 clamp(5rem, 9vw, 8rem);
  background: var(--grad-deep);
  color: #fff;
  isolation: isolate;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-bloom {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.55;
  animation: bloom-drift 18s ease-in-out infinite alternate;
}
.hero-bloom-1 { width: 46vw; height: 46vw; left: -12vw; top: -14vw; background: radial-gradient(circle, #13f0fc 0%, transparent 68%); opacity: 0.28; }
.hero-bloom-2 { width: 40vw; height: 40vw; right: -8vw; bottom: -16vw; background: radial-gradient(circle, #f15a24 0%, transparent 70%); opacity: 0.3; animation-delay: -6s; }
@keyframes bloom-drift {
  from { transform: translate3d(0,0,0) scale(1); }
  to { transform: translate3d(4%, 6%, 0) scale(1.12); }
}
.hero-grid {
  position: absolute; inset: -2px;
  background-image: var(--weave);
  background-size: 44px 44px;
  opacity: 0.05;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 30%, transparent 75%);
}
.hero-noise {
  position: absolute; inset: 0; opacity: 0.5; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
}

.hero-grid-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-16); align-items: center; }
.hero-copy h1 { color: #fff; margin-bottom: var(--space-6); }
.h1-accent {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  background: linear-gradient(100deg, var(--cyan-soft), var(--orange-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: .06em;
}
.hero-lead {
  font-size: clamp(1.1rem, 1.5vw, 1.3rem); color: rgba(255,255,255,0.78);
  max-width: 42ch; margin-bottom: var(--space-8);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-bottom: var(--space-6); }
.hero-note { font-size: 0.92rem; color: rgba(255,255,255,0.55); margin: 0; }

.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; min-height: 380px; }
.hero-visual-glow {
  position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(241,90,36,0.4) 0%, rgba(19,240,252,0.15) 45%, transparent 70%);
  filter: blur(30px); animation: pulse-glow 6s ease-in-out infinite;
}
@keyframes pulse-glow { 0%,100% { transform: scale(0.92); opacity: 0.7; } 50% { transform: scale(1.06); opacity: 1; } }
.hero-weave {
  position: relative; z-index: 1; width: min(78%, 340px);
  animation: weave-float 9s ease-in-out infinite;
  filter: drop-shadow(0 24px 50px rgba(0,0,0,0.45));
  -webkit-mask-image: radial-gradient(circle at 50% 48%, #000 46%, transparent 82%);
  mask-image: radial-gradient(circle at 50% 48%, #000 46%, transparent 82%);
}
.hero-weave img { width: 100%; opacity: 0.92; }
@keyframes weave-float {
  0%,100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-16px) rotate(1deg); }
}
.hero-chip {
  position: absolute; z-index: 2;
  font-family: var(--font-head); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.06em;
  padding: 7px 14px; border-radius: 100px;
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(6px); color: #fff;
  animation: chip-float 7s ease-in-out infinite;
}
.hero-chip-1 { top: 6%; right: 2%; animation-delay: -1s; }
.hero-chip-2 { bottom: 16%; left: -4%; animation-delay: -3.5s; border-color: rgba(241,90,36,0.5); }
.hero-chip-3 { bottom: 2%; right: 14%; animation-delay: -5s; border-color: rgba(19,240,252,0.5); }
@keyframes chip-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

.hero-scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 3;
  width: 26px; height: 44px; border: 1.5px solid rgba(255,255,255,0.35); border-radius: 100px;
  display: flex; justify-content: center; padding-top: 8px;
}
.hero-scroll-line { width: 3px; height: 8px; border-radius: 3px; background: var(--orange-400); animation: scroll-cue 1.8s ease-in-out infinite; }
@keyframes scroll-cue { 0% { opacity: 0; transform: translateY(-4px); } 40% { opacity: 1; } 80%,100% { opacity: 0; transform: translateY(14px); } }

/* transição suave hero -> trust */
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 120px;
  background: linear-gradient(to bottom, transparent, var(--paper));
  z-index: -1;
}

/* ---------- trust ---------- */
.trust { padding: var(--space-16) 0 var(--space-12); background: var(--paper); overflow: hidden; }
.trust-line {
  font-family: var(--font-serif); font-size: clamp(1.05rem, 1.6vw, 1.22rem); line-height: 1.6;
  color: var(--slate); max-width: 60ch; margin: 0 auto var(--space-12); text-align: center;
}
.trust-line strong {
  color: var(--petrol-900);
  background: linear-gradient(transparent 68%, rgba(241,90,36,0.16) 68%);
}
.marquee { position: relative; overflow: hidden; padding: var(--space-4) 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; align-items: center; gap: var(--space-8); width: max-content; animation: marquee 46s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span:not(.marquee-dot) {
  font-family: var(--font-head); font-weight: 600; font-size: 1.15rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate-light); white-space: nowrap;
}
.marquee-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--orange); flex: none; opacity: 0.6; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- seções genéricas ---------- */
.section { position: relative; padding: clamp(4.5rem, 10vw, 8rem) 0; overflow: hidden; }
.section-head { position: relative; max-width: 60ch; margin-bottom: var(--space-16); }
.section-head > * { position: relative; z-index: 1; }
.section-intro { font-size: 1.08rem; color: var(--slate); }

.section-bloom {
  position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; z-index: 0;
}
.section-bloom-petrol { width: 40vw; height: 40vw; top: -10vw; left: -14vw; background: radial-gradient(circle, rgba(14,103,134,0.14), transparent 70%); }
.section-bloom-petrol-soft { width: 36vw; height: 36vw; bottom: -12vw; right: -12vw; background: radial-gradient(circle, rgba(14,103,134,0.1), transparent 70%); }
.section-bloom-orange { width: 38vw; height: 38vw; top: -8vw; right: -12vw; background: radial-gradient(circle, rgba(241,90,36,0.13), transparent 70%); }

/* ---------- o modelo ---------- */
.model { background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); }
.model-flow { position: relative; margin-bottom: var(--space-16); }
.model-line {
  position: absolute; left: 20px; top: 8px; bottom: 8px; width: 4px; border-radius: 4px;
  background: var(--petrol-100); overflow: hidden;
}
.model-line-fill {
  position: absolute; inset: 0; transform: scaleY(0); transform-origin: top;
  background: linear-gradient(to bottom, #0bb8c4 0%, var(--petrol) 38%, var(--red) 66%, var(--orange) 100%);
  box-shadow: 0 0 16px rgba(241,90,36,0.45);
  transition: transform 1.2s var(--ease-out);
}
.model-flow.is-in .model-line-fill { transform: scaleY(1); }

.model-stack { display: grid; gap: var(--space-4); }
.model-layer {
  position: relative;
  display: grid; grid-template-columns: minmax(190px, 300px) 1fr;
  column-gap: var(--space-12); row-gap: var(--space-1);
  padding: var(--space-6) var(--space-8) var(--space-6) var(--space-12);
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  backdrop-filter: blur(2px);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.model-layer::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  border-radius: 4px 0 0 4px; background: var(--petrol);
}
.model-layer:nth-child(1)::before { background: linear-gradient(var(--cyan), var(--petrol)); }
.model-layer:nth-child(2)::before { background: var(--petrol); }
.model-layer:nth-child(3)::before { background: var(--petrol-700); }
.model-layer:nth-child(4)::before { background: var(--red); }
.model-layer:nth-child(5)::before { background: var(--orange); }
.model-layer:nth-child(6)::before { background: linear-gradient(var(--orange), var(--orange-700)); }
.model-layer:hover {
  transform: translateX(6px);
  background: #fff; border-color: var(--petrol-200);
  box-shadow: 0 18px 45px -18px rgba(6,48,63,0.28);
}
.model-node {
  position: absolute; left: 14px; top: 30px; width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--petrol); z-index: 2;
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.model-layer:hover .model-node { border-color: var(--orange); transform: scale(1.25); box-shadow: 0 0 0 6px rgba(241,90,36,0.14); }

.model-layer-head { grid-column: 1; grid-row: 1; display: flex; align-items: baseline; gap: var(--space-3); flex-wrap: wrap; }
.model-layer h3 { grid-column: 1; grid-row: 2; align-self: start; margin: 0; font-size: 1.16rem; }
.model-layer p { grid-column: 2; grid-row: 1 / span 2; align-self: start; margin: 0 0 var(--space-2); color: var(--slate); font-size: 0.98rem; }
.model-link { grid-column: 2; grid-row: 3; }
.model-abbr {
  font-family: var(--font-head); font-weight: 700; font-size: 0.9rem; letter-spacing: 0.05em;
  color: #fff; padding: 3px 11px; border-radius: 4px;
  background: var(--grad-petrol);
}
.model-layer:nth-child(n+4) .model-abbr { background: var(--grad-orange); }
.model-horizon { font-size: 0.85rem; color: var(--slate-light); font-style: italic; font-family: var(--font-serif); }

.model-axes { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); padding-top: var(--space-12); border-top: 1px solid var(--line); }
.model-axis { position: relative; padding-left: var(--space-6); }
.model-axis-mark { position: absolute; left: 0; top: 4px; width: 14px; height: 14px; background: var(--weave); background-size: 7px 7px; border-radius: 3px; opacity: 0.9; }
.model-axis-title { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--slate-light); margin-bottom: var(--space-2); font-weight: 600; }
.model-axis p { font-size: 0.98rem; color: var(--slate); margin: 0; }

/* ---------- soluções ---------- */
.solutions { background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%); }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.solution-card {
  position: relative; isolation: isolate;
  background: #fff; border-radius: var(--radius-lg); padding: var(--space-8);
  display: flex; flex-direction: column; gap: var(--space-3);
  border: 1px solid var(--line);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease);
}
.solution-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: var(--grad-border);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .28s var(--ease); z-index: -1;
}
.solution-card:hover { transform: translateY(-6px); box-shadow: 0 26px 55px -22px rgba(6,48,63,0.3); }
.solution-card:hover::before { opacity: 1; }
.card-num {
  font-family: var(--font-head); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.08em;
  color: var(--orange);
}
.card-corner {
  position: absolute; top: var(--space-6); right: var(--space-6); width: 22px; height: 22px;
  background: var(--weave); background-size: 7px 7px; opacity: 0.5;
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}
.solution-card:hover .card-corner { opacity: 1; transform: rotate(45deg); }
.solution-card h3 { margin: 0; }
.solution-card h3 a { color: var(--ink); }
.solution-card:hover h3 a { color: var(--petrol-700); }
.solution-card p { margin: 0; font-size: 0.97rem; color: var(--slate); flex-grow: 1; }
.solution-card .card-link { margin-top: var(--space-2); align-self: flex-start; }

/* ---------- método ---------- */
.method { background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); }
.method-steps { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-6); padding-top: var(--space-8); }
.method-line { position: absolute; left: 0; right: 0; top: 6px; height: 3px; background: var(--petrol-100); border-radius: 3px; overflow: hidden; }
.method-line-fill {
  position: absolute; inset: 0; transform: scaleX(0); transform-origin: left;
  background: var(--grad-orange); box-shadow: 0 0 12px rgba(241,90,36,0.4);
  transition: transform 1.2s var(--ease-out);
}
.method-steps.is-in .method-line-fill { transform: scaleX(1); }
.method-steps li { position: relative; padding-top: var(--space-8); }
.method-node {
  position: absolute; left: 0; top: -6px; width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--orange); box-shadow: 0 0 0 5px rgba(241,90,36,0.12);
}
.method-num { font-family: var(--font-head); font-weight: 700; font-size: 0.9rem; color: var(--orange); letter-spacing: 0.05em; }
.method-steps h3 { margin: var(--space-3) 0 var(--space-2); font-size: 1.05rem; }
.method-steps p { font-size: 0.93rem; color: var(--slate); margin: 0; }
.method-steps li { transition: transform .25s var(--ease); }
.method-steps li:hover { transform: translateY(-4px); }

/* ---------- cases ---------- */
.cases { background: var(--grad-deep); color: #fff; }
.cases-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.cases-bloom {
  position: absolute; width: 50vw; height: 50vw; right: -12vw; top: -16vw; border-radius: 50%;
  background: radial-gradient(circle, rgba(241,90,36,0.25), transparent 68%); filter: blur(60px);
  animation: bloom-drift 20s ease-in-out infinite alternate;
}
.cases-weave { position: absolute; inset: 0; background-image: var(--weave); background-size: 46px 46px; opacity: 0.05; mask-image: radial-gradient(ellipse 70% 80% at 30% 50%, #000, transparent 75%); }
.cases .eyebrow { color: var(--cyan-soft); }
.cases h2 { color: #fff; }
.cases::after {
  content: "\201D"; position: absolute; right: clamp(1rem, 6vw, 7rem); bottom: -0.35em;
  font-family: var(--font-serif); font-size: clamp(14rem, 30vw, 26rem); line-height: 1;
  color: rgba(255,255,255,0.06); pointer-events: none; z-index: 0;
}
.quote { margin: 0 0 var(--space-8); max-width: 62ch; position: relative; padding-left: var(--space-8); }
.quote::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px; border-radius: 3px; background: var(--grad-orange); }
.quote blockquote { margin: 0; }
.quote blockquote p {
  font-family: var(--font-serif); font-size: clamp(1.35rem, 2.6vw, 1.95rem); line-height: 1.5;
  color: #fff; max-width: none;
}
.quote figcaption { margin-top: var(--space-4); display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.quote-mark-sm { width: 28px; height: 28px; background: var(--weave); background-size: 9px 9px; border-radius: 4px; opacity: 0.9; flex: none; }
.quote-name { font-family: var(--font-head); font-weight: 600; color: #fff; }
.quote-org { color: var(--petrol-200); font-size: 0.92rem; }
.quote-metrics { display: flex; flex-wrap: wrap; gap: var(--space-3); margin: 0 0 var(--space-8); }
.quote-metrics li {
  font-family: var(--font-head); font-size: 0.86rem; font-weight: 500;
  padding: 8px 16px; border-radius: 100px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); color: rgba(255,255,255,0.9);
}
.cases-more { margin: 0; }

/* ---------- livro ---------- */
.book { background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); }
.book-grid { display: grid; grid-template-columns: 320px 1fr; gap: var(--space-24); align-items: center; }
.book-cover-wrap { position: relative; display: flex; justify-content: center; perspective: 1200px; }
.book-glow {
  position: absolute; inset: -12%; border-radius: 50%;
  background: radial-gradient(circle, rgba(241,90,36,0.28), rgba(19,240,252,0.12) 50%, transparent 72%);
  filter: blur(34px); animation: pulse-glow 7s ease-in-out infinite;
}
.book-cover {
  position: relative; width: 100%; aspect-ratio: 3 / 4; overflow: hidden;
  background: var(--grad-petrol);
  border-radius: 3px 8px 8px 3px;
  box-shadow: 0 30px 60px -20px rgba(6,48,63,0.55), inset 7px 0 14px -6px rgba(0,0,0,0.35);
  display: flex; align-items: center; justify-content: center; padding: var(--space-8);
  transform: rotateY(-14deg) rotateX(3deg); transform-style: preserve-3d;
  transition: transform .5s var(--ease);
  animation: book-float 8s ease-in-out infinite;
}
.book-cover-wrap:hover .book-cover { transform: rotateY(-4deg) rotateX(1deg) translateY(-6px); }
@keyframes book-float { 0%,100% { transform: rotateY(-14deg) rotateX(3deg) translateY(0); } 50% { transform: rotateY(-11deg) rotateX(2deg) translateY(-12px); } }
.book-cover::after { content: ""; position: absolute; inset: 0; background-image: var(--weave); background-size: 40px 40px; opacity: 0.08; }
.book-cover-sheen {
  position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 35%, rgba(255,255,255,0.22) 50%, transparent 65%);
  transform: translateX(-100%); animation: sheen 6s ease-in-out infinite;
}
@keyframes sheen { 0%, 70% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.book-cover-inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-4); }
.book-cover-inner img { width: 92px; height: auto; }
.book-cover-title { font-family: var(--font-head); font-weight: 700; font-size: 1.7rem; line-height: 1.1; color: #fff; }
.book-cover-sub { font-family: var(--font-serif); font-style: italic; color: var(--cyan-soft); font-size: 0.98rem; }
.book-copy { position: relative; }

/* ---------- autoridade ---------- */
.authority { background: var(--paper); }
.authority-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-16); align-items: start; }
.authority-inner { position: relative; max-width: 52ch; }
.authority-facts { display: grid; gap: var(--space-8); padding-left: var(--space-8); position: relative; }
.authority-facts::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 2px; background: linear-gradient(var(--cyan), var(--petrol), var(--orange)); border-radius: 2px; }
.authority-facts dt { font-family: var(--font-head); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.11em; color: var(--orange); font-weight: 600; margin-bottom: 4px; }
.authority-facts dd { margin: 0; color: var(--ink); font-size: 1rem; }
.fact-num { font-family: var(--font-head); font-weight: 700; font-size: 1.5rem; color: var(--petrol-900); letter-spacing: -0.02em; }

/* ---------- cta final ---------- */
.final-cta { background: var(--grad-deep); color: #fff; text-align: center; }
.final-cta-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.final-bloom { position: absolute; border-radius: 50%; filter: blur(80px); animation: bloom-drift 16s ease-in-out infinite alternate; }
.final-bloom-1 { width: 52vw; height: 52vw; left: -14vw; bottom: -22vw; background: radial-gradient(circle, rgba(241,90,36,0.55), rgba(241,90,36,0.12) 45%, transparent 70%); }
.final-bloom-2 { width: 40vw; height: 40vw; right: -12vw; top: -18vw; background: radial-gradient(circle, rgba(19,240,252,0.26), transparent 70%); animation-delay: -5s; }
.final-weave { position: absolute; inset: 0; background-image: var(--weave); background-size: 48px 48px; opacity: 0.05; mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, #000, transparent 78%); }
.final-cta h2 { color: #fff; font-size: clamp(2.2rem, 5vw, 3.4rem); }
.final-cta p { color: rgba(255,255,255,0.8); margin-left: auto; margin-right: auto; }
.final-cta-inner { display: flex; flex-direction: column; align-items: center; gap: var(--space-4); }
.final-cta .btn { margin-top: var(--space-4); }
.final-cta-contact { font-size: 0.95rem; color: rgba(255,255,255,0.65); }
.final-cta-contact a { color: #fff; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,0.4); }
.final-cta-contact a:hover { text-decoration-color: var(--orange-400); color: var(--orange-400); }

/* ---------- footer ---------- */
.site-footer { position: relative; background: var(--grad-deep); color: #fff; padding: var(--space-24) 0 var(--space-8); }
.site-footer::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--grad-border); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-12); }
.footer-brand img { width: 160px; height: auto; margin-bottom: var(--space-4); }
.footer-brand p { color: rgba(255,255,255,0.6); font-family: var(--font-serif); font-style: italic; }
.site-footer h2 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--cyan-soft); margin-bottom: var(--space-4); font-weight: 600; }
.footer-nav ul, .footer-contact ul { display: flex; flex-direction: column; gap: var(--space-2); }
.site-footer a { color: rgba(255,255,255,0.82); font-size: 0.95rem; transition: color .2s var(--ease); }
.site-footer a:hover { color: var(--orange-400); }
.footer-contact li { color: rgba(255,255,255,0.6); font-size: 0.95rem; }
.footer-legal { margin-top: var(--space-16); padding-top: var(--space-6); border-top: 1px solid rgba(255,255,255,0.12); }
.footer-legal p { color: rgba(255,255,255,0.5); font-size: 0.86rem; margin: 0; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
.reveal.is-in { opacity: 1; transform: none; }
.model-stack.reveal .model-layer { opacity: 0; transform: translateY(14px); transition: opacity .55s var(--ease-out), transform .55s var(--ease-out); }
.model-stack.reveal.is-in .model-layer { opacity: 1; transform: none; }
.model-stack.reveal.is-in .model-layer:nth-child(1) { transition-delay: 0ms; }
.model-stack.reveal.is-in .model-layer:nth-child(2) { transition-delay: 80ms; }
.model-stack.reveal.is-in .model-layer:nth-child(3) { transition-delay: 160ms; }
.model-stack.reveal.is-in .model-layer:nth-child(4) { transition-delay: 240ms; }
.model-stack.reveal.is-in .model-layer:nth-child(5) { transition-delay: 320ms; }
.model-stack.reveal.is-in .model-layer:nth-child(6) { transition-delay: 400ms; }

/* =========================================================
   responsivo
   ========================================================= */
@media (max-width: 1024px) {
  .hero-grid-layout { grid-template-columns: 1fr; gap: var(--space-12); }
  .hero-visual { order: -1; min-height: 260px; }
  .hero-weave { width: 220px; }
  .hero-chip { display: none; }
  .solution-grid { grid-template-columns: repeat(2, 1fr); }
  .method-steps { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); padding-top: 0; }
  .method-line { display: none; }
  .method-node { display: none; }
  .model-axes { grid-template-columns: 1fr; gap: var(--space-6); }
  .book-grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .book-cover-wrap { max-width: 260px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .authority-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .authority-inner { max-width: 62ch; }
  .authority-facts { padding-left: 0; }
  .authority-facts::before { display: none; }
  .authority-facts { grid-template-columns: 1fr 1fr; gap: var(--space-6) var(--space-8); border-top: 2px solid var(--petrol-100); padding-top: var(--space-6); }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-toggle { display: block; }
  .nav-list {
    position: absolute; right: 0; top: calc(100% + 14px);
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(6,48,63,0.18); min-width: 230px; padding: var(--space-2);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  }
  .nav-list.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav-list a, .site-header .nav-list a { display: block; padding: var(--space-3) var(--space-4); color: var(--slate); }
  .nav-cta { margin-top: var(--space-2); border-top: 1px solid var(--line); padding-top: var(--space-2); }
  .nav-cta a { border: none !important; text-align: left; padding: var(--space-3) var(--space-4); color: var(--petrol-700) !important; }

  .solution-grid { grid-template-columns: 1fr; }
  .method-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .authority-facts { grid-template-columns: 1fr; }
  .model-layer { grid-template-columns: 1fr; padding: var(--space-4) var(--space-6) var(--space-4) var(--space-8); row-gap: var(--space-2); }
  .model-layer-head, .model-layer h3, .model-layer p, .model-link { grid-column: 1; grid-row: auto; }
  .model-line { left: 13px; }
  .model-node { left: 7px; top: 22px; }
  .hero-actions .btn { width: 100%; }
  .ghost-num { font-size: clamp(4rem, 20vw, 6rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal, .model-stack.reveal .model-layer { opacity: 1 !important; transform: none !important; }
  .model-line-fill { transform: scaleY(1) !important; }
  .method-line-fill { transform: scaleX(1) !important; }
  .marquee-track { animation: none !important; }
}