/* ==========================================================================
   Elo Consultoria — LP Curso de Licitação v2
   Design system: editorial premium sobre a paleta institucional (bordô + marrom escuro)
   ========================================================================== */

:root {
  /* Tinta (marrom-preto institucional) */
  --ink-950: #120e0b;
  --ink-900: #171310;
  --ink-850: #1d1712;
  --ink-800: #241c15;
  --ink-700: #322820;

  /* Bordô institucional (#6d1b30) em escala tonal */
  --wine-900: #451020;
  --wine-800: #571628;
  --wine-700: #6d1b30;
  --wine-600: #83243c;
  --wine-500: #9b3049;
  --wine-400: #b44a60;
  --wine-300: #cf7285;
  --wine-200: #e3a4b1;

  /* Papel (tints quentes derivados do marrom) */
  --paper: #f4eee4;
  --paper-soft: #efe7da;
  --paper-deep: #e9dfcf;
  --paper-card: #fbf8f2;

  /* Texto */
  --cream: #f3ede4;
  --cream-dim: #c9bcab;
  --cream-faint: #a2937f;
  --ink-text: #241c15;
  --ink-dim: #5c5248;

  /* Hairlines */
  --line-on-dark: rgba(243, 237, 228, 0.1);
  --line-on-dark-strong: rgba(243, 237, 228, 0.18);
  --line-on-paper: rgba(36, 28, 21, 0.14);

  /* Tipografia */
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Archivo", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Spline Sans Mono", "Cascadia Code", ui-monospace, monospace;

  /* Movimento */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Sombras em camadas */
  --shadow-card:
    0 1px 2px rgba(18, 14, 11, 0.08),
    0 4px 10px rgba(18, 14, 11, 0.08),
    0 16px 32px rgba(18, 14, 11, 0.1);
  --shadow-lift:
    0 2px 4px rgba(18, 14, 11, 0.1),
    0 8px 16px rgba(18, 14, 11, 0.12),
    0 24px 48px rgba(18, 14, 11, 0.16),
    0 48px 96px rgba(18, 14, 11, 0.14);
  --shadow-btn:
    inset 0 1px 0 rgba(243, 237, 228, 0.14),
    0 1px 2px rgba(18, 14, 11, 0.3),
    0 6px 16px rgba(69, 16, 32, 0.35);
  --shadow-btn-hover:
    inset 0 1px 0 rgba(243, 237, 228, 0.18),
    0 2px 4px rgba(18, 14, 11, 0.3),
    0 10px 28px rgba(69, 16, 32, 0.45);

  /* Ruído (grain) — SVG inline dessaturado */
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");

  --header-h: 76px;
  --sec-pad: clamp(4.5rem, 9vw, 7.5rem);
}

/* ==========================================================================
   Reset / base
   ========================================================================== */

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

html {
  scroll-padding-top: calc(var(--header-h) + 16px);
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--cream);
  background: var(--ink-900);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Grain global sutil — um único overlay fixo para toda a página */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: var(--grain);
  background-size: 180px 180px;
  opacity: 0.05;
  pointer-events: none;
  z-index: 2147483000;
}

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

h1,
h2,
h3,
h4,
p,
dl,
dd,
ol,
ul {
  margin: 0;
}

ol,
ul {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--wine-400);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

/* Tipos utilitários */
.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.serif {
  font-family: var(--font-serif);
}

.serif-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
}

h1,
h2 {
  font-family: var(--font-serif);
  font-weight: 560;
  font-optical-sizing: auto;
  letter-spacing: -0.015em;
  line-height: 1.08;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.3rem, 3.3vw + 0.75rem, 3.35rem);
}

h2 {
  font-size: clamp(1.75rem, 2.6vw + 0.7rem, 2.9rem);
}

h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.35;
}

/* Bandas */
.band-dark {
  position: relative;
  background: var(--ink-900);
  color: var(--cream);
}

.band-dark .serif-accent {
  color: var(--wine-300);
}

.band-paper {
  position: relative;
  background:
    radial-gradient(70rem 40rem at 85% -5%, rgba(109, 27, 48, 0.05), transparent 60%),
    var(--paper);
  color: var(--ink-text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.band-paper .serif-accent {
  color: var(--wine-700);
}

/* Cabeçalho de seção editorial */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: clamp(1.25rem, 4vw, 3rem);
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--line-on-paper);
}

.band-dark .section-head {
  border-bottom-color: var(--line-on-dark);
}

.section-index {
  color: var(--wine-700);
  padding-top: 0.55em;
  position: relative;
}

.section-index::after {
  content: "";
  display: block;
  width: 2rem;
  height: 1px;
  margin-top: 0.6rem;
  background: var(--wine-700);
}

.section-head h2 {
  max-width: 22ch;
}

.section-sub {
  margin-top: 0.75rem;
  color: var(--ink-dim);
  font-size: 1.05rem;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 300;
  background: var(--wine-700);
  color: var(--cream);
  padding: 0.6rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s var(--ease-out);
}

.skip-link:focus-visible {
  top: 1rem;
}

/* ==========================================================================
   Botões
   ========================================================================== */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.2;
  text-decoration: none;
  border-radius: 10px;
  padding: 0.95rem 1.6rem;
  white-space: nowrap;
  transition:
    transform 0.4s var(--ease-spring),
    box-shadow 0.4s var(--ease-out),
    background-color 0.3s var(--ease-out),
    border-color 0.3s var(--ease-out),
    color 0.3s var(--ease-out);
}

.btn-arrow {
  width: 17px;
  height: 17px;
  flex: none;
  transition: transform 0.45s var(--ease-spring);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-primary {
  background: linear-gradient(180deg, var(--wine-600), var(--wine-700) 78%);
  color: var(--cream);
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(180deg, var(--wine-500), var(--wine-600) 78%);
  box-shadow: var(--shadow-btn-hover);
}

.btn-primary:active {
  transform: translateY(0) scale(0.985);
}

.btn-ghost {
  color: var(--cream);
  border: 1px solid var(--line-on-dark-strong);
  background: rgba(243, 237, 228, 0.02);
}

.btn-ghost:hover {
  border-color: var(--wine-400);
  background: rgba(109, 27, 48, 0.28);
  transform: translateY(-1px);
}

.btn-outline {
  color: var(--cream);
  border: 1px solid var(--line-on-dark-strong);
}

.btn-outline:hover {
  border-color: var(--wine-300);
  color: var(--wine-200);
  transform: translateY(-2px);
}

.btn-paper {
  background: var(--paper);
  color: var(--wine-800);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 2px 6px rgba(18, 14, 11, 0.35),
    0 12px 32px rgba(18, 14, 11, 0.3);
}

.btn-paper:hover {
  transform: translateY(-2px);
  background: #fff;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 4px 10px rgba(18, 14, 11, 0.35),
    0 18px 44px rgba(18, 14, 11, 0.38);
}

.btn-sm {
  padding: 0.6rem 1.1rem;
  font-size: 0.88rem;
  border-radius: 8px;
}

.btn-lg {
  padding: 1.1rem 2rem;
  font-size: 1.05rem;
  border-radius: 12px;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition:
    background-color 0.35s var(--ease-out),
    box-shadow 0.35s var(--ease-out),
    border-color 0.35s var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(23, 19, 16, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom-color: var(--line-on-dark);
}

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

.logo-img {
  width: auto;
  height: 46px;
  transition: height 0.35s var(--ease-out);
}

.site-header.is-scrolled .logo-img {
  height: 38px;
}

.header-note {
  color: var(--cream-faint);
}

@media (max-width: 900px) {
  .header-note {
    display: none;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding-top: calc(var(--header-h) + clamp(2.5rem, 6vw, 5rem));
  padding-bottom: clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}

/* Desktop: a faixa de estatisticas precisa caber na primeira dobra, inclusive
   em laptops de 768px de altura. Escopo minimo em altura para nao afetar o
   layout mobile (que ja tem seu proprio ajuste em max-width: 640px). */
@media (min-width: 1025px) and (max-height: 950px) {
  .hero {
    padding-top: calc(var(--header-h) + 2rem);
    padding-bottom: 3rem;
  }

  .hero-copy h1 {
    margin-top: 1rem;
  }

  .subhead {
    margin-top: 1rem;
  }

  .hero-actions {
    margin-top: 1.5rem;
  }

  .stat-strip {
    margin-top: 1.75rem;
  }

  .stat {
    padding-top: 1.1rem;
  }
}

@media (min-width: 1025px) and (max-height: 820px) {
  .hero {
    padding-top: calc(var(--header-h) + 1.5rem);
  }

  .hero-copy h1 {
    font-size: clamp(2.15rem, 2.6vw + 0.5rem, 2.7rem);
  }

  .subhead {
    margin-top: 0.85rem;
    font-size: 1.02rem;
  }

  .hero-actions {
    margin-top: 1.25rem;
  }

  .stat-strip {
    margin-top: 1.25rem;
  }

  .stat {
    padding-top: 0.9rem;
  }
}

.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58rem 40rem at 82% 8%, rgba(109, 27, 48, 0.38), transparent 62%),
    radial-gradient(40rem 30rem at -8% 100%, rgba(109, 27, 48, 0.16), transparent 60%),
    radial-gradient(30rem 22rem at 15% -10%, rgba(243, 237, 228, 0.05), transparent 65%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--wine-300);
}

.eyebrow::before {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: var(--wine-400);
}

.hero-copy h1 {
  margin-top: 1.4rem;
  max-width: 17ch;
}

.hero-copy h1 .serif-accent {
  white-space: nowrap;
}

.subhead {
  margin-top: 1.4rem;
  max-width: 46ch;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.65;
  color: var(--cream-dim);
}

.subhead em {
  color: var(--cream);
}

.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.microtrust {
  color: var(--cream-faint);
  letter-spacing: 0.08em;
}

/* Faixa de estatísticas */
.stat-strip {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-on-dark);
}

.stat {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.35rem;
  padding: 1.4rem 1.25rem 0 0;
}

.stat + .stat {
  border-left: 1px solid var(--line-on-dark);
  padding-left: 1.25rem;
}

.stat dd {
  font-family: var(--font-serif);
  font-weight: 560;
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cream);
  font-variant-numeric: tabular-nums;
}

.stat dt {
  color: var(--cream-faint);
  font-size: 0.68rem;
}

/* ==========================================================================
   Formulário (cartão de papel)
   ========================================================================== */

.hero-form-wrap {
  position: relative;
}

.form-card {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0) 30%),
    var(--paper);
  color: var(--ink-text);
  border-radius: 16px;
  padding: clamp(1.6rem, 3vw, 2.2rem);
  box-shadow: var(--shadow-lift);
}

.form-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 16px 16px 0 0;
  background: linear-gradient(90deg, var(--wine-800), var(--wine-500) 55%, var(--wine-700));
}

.form-card-head h2 {
  font-size: 1.55rem;
  letter-spacing: -0.01em;
}

.form-card-head p {
  margin-top: 0.5rem;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.form-card form {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.05rem;
}

.field label {
  display: block;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  margin-bottom: 0.4rem;
  color: var(--ink-text);
}

.field input,
.field select {
  width: 100%;
  font: inherit;
  font-size: 0.98rem;
  color: var(--ink-text);
  background: var(--paper-card);
  border: 1px solid rgba(36, 28, 21, 0.2);
  border-radius: 9px;
  padding: 0.78rem 0.95rem;
  transition:
    border-color 0.25s var(--ease-out),
    box-shadow 0.25s var(--ease-out),
    background-color 0.25s var(--ease-out);
}

.field input::placeholder {
  color: rgba(92, 82, 72, 0.55);
}

.field input:hover,
.field select:hover {
  border-color: rgba(36, 28, 21, 0.38);
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--wine-600);
  background: #fff;
  box-shadow: 0 0 0 3.5px rgba(109, 27, 48, 0.14);
}

.select-wrap {
  position: relative;
}

.select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.6rem;
  cursor: pointer;
}

.select-caret {
  position: absolute;
  right: 0.95rem;
  top: 50%;
  width: 16px;
  height: 16px;
  translate: 0 -50%;
  color: var(--ink-dim);
  pointer-events: none;
}

.field-error {
  display: none;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--wine-700);
}

.field.is-invalid .field-error {
  display: block;
}

.field.is-invalid input,
.field.is-invalid select {
  border-color: var(--wine-600);
  box-shadow: 0 0 0 3.5px rgba(109, 27, 48, 0.1);
}

.form-card .btn-block {
  margin-top: 0.4rem;
}

.form-disclaimer {
  margin-top: 0.9rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-dim);
}

/* ==========================================================================
   Prova social / logos
   ========================================================================== */

.clients {
  padding-block: clamp(2.5rem, 5vw, 4rem) var(--sec-pad);
}

.clients-label {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--cream-faint);
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.clients-label::before,
.clients-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-on-dark);
}

.client-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 12px;
  padding: 0.6rem 0.75rem;
  box-shadow:
    inset 0 0 0 1px rgba(18, 14, 11, 0.04),
    0 1px 3px rgba(18, 14, 11, 0.35);
  transition:
    transform 0.45s var(--ease-spring),
    box-shadow 0.35s var(--ease-out);
}

.client-tile:hover {
  transform: translateY(-4px);
  box-shadow:
    inset 0 0 0 1px rgba(18, 14, 11, 0.04),
    0 2px 6px rgba(18, 14, 11, 0.35),
    0 14px 30px rgba(18, 14, 11, 0.4);
}

.client-tile img {
  max-height: 140px;
  width: auto;
  object-fit: contain;
}

/* Marquee das demais instituições */
.clients-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.clients-track {
  display: flex;
  gap: clamp(0.75rem, 1.6vw, 1.25rem);
  width: max-content;
  padding-block: 0.5rem;
  /* --marquee-shift é medido em JS (largura exata de um conjunto + gap).
     Sem isso o loop nao fecha e aparece um vao branco no fim do ciclo. */
  animation: marquee var(--marquee-duration, 46s) linear infinite;
}

.clients-track .client-tile {
  /* Largura fixa (não apenas mínima) para o marquee poder ser medido antes
     de as imagens lazy carregarem, mantendo o loop sempre alinhado. */
  flex: 0 0 clamp(200px, 17vw, 250px);
  width: clamp(200px, 17vw, 250px);
  height: clamp(150px, 13vw, 185px);
  /* Padding enxuto: a logo ocupa quase todo o cartão, como no site da Elo. */
  padding: 0.6rem 0.75rem;
}

.clients-track .client-tile img {
  /* ~92% da altura do cartão — mesma proporção do site institucional. */
  max-height: clamp(132px, 11.6vw, 166px);
  max-width: clamp(178px, 15vw, 224px);
}

.clients-marquee:hover .clients-track {
  animation-play-state: paused;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(var(--marquee-shift, 50%) * -1));
  }
}

@media (prefers-reduced-motion: reduce) {
  .clients-track {
    animation: none;
    width: auto;
    flex-wrap: wrap;
    justify-content: center;
  }

  .clients-marquee {
    -webkit-mask-image: none;
    mask-image: none;
    padding-inline: clamp(1.25rem, 5vw, 3rem);
  }
}

/* ==========================================================================
   Dores (banda papel)
   ========================================================================== */

.pain {
  padding-block: var(--sec-pad) calc(var(--sec-pad) * 0.7);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.pain-col {
  padding: 0.5rem clamp(1.25rem, 3vw, 2.5rem) 0.5rem 0;
}

.pain-col + .pain-col {
  border-left: 1px solid var(--line-on-paper);
  padding-left: clamp(1.25rem, 3vw, 2.5rem);
}

.pain-num {
  font-style: italic;
  font-weight: 500;
  font-size: clamp(2.6rem, 4vw, 3.6rem);
  line-height: 1;
  color: var(--wine-700);
  opacity: 0.85;
}

.pain-col h3 {
  margin-top: 1.1rem;
  font-size: 1.12rem;
}

.pain-col p {
  margin-top: 0.7rem;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ==========================================================================
   Diferenciais (banda papel)
   ========================================================================== */

.differentials {
  padding-block: calc(var(--sec-pad) * 0.7);
}

.differentials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 2.4vw, 1.75rem);
  align-items: stretch;
}

.differential-card {
  background: var(--paper-card);
  border: 1px solid rgba(36, 28, 21, 0.08);
  border-radius: 16px;
  padding: clamp(1.5rem, 2.6vw, 2.1rem);
  transition:
    transform 0.5s var(--ease-spring),
    box-shadow 0.4s var(--ease-out),
    border-color 0.4s var(--ease-out);
}

/* Sem deslocamentos verticais: o escalonamento anterior fazia os cartoes
   se encostarem e ficarem com alturas visivelmente diferentes. */

.differential-card:hover {
  transform: translateY(-5px);
  border-color: rgba(109, 27, 48, 0.25);
  box-shadow: var(--shadow-card);
}

.differential-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(109, 27, 48, 0.08);
  color: var(--wine-700);
  transition:
    background-color 0.35s var(--ease-out),
    color 0.35s var(--ease-out),
    transform 0.45s var(--ease-spring);
}

.differential-icon svg {
  width: 22px;
  height: 22px;
}

.differential-card:hover .differential-icon {
  background: var(--wine-700);
  color: var(--cream);
  transform: rotate(-4deg) scale(1.05);
}

.differential-card h3 {
  margin-top: 1.2rem;
  font-size: 1.1rem;
}

.differential-card p {
  margin-top: 0.6rem;
  color: var(--ink-dim);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* ==========================================================================
   Trilha de capacitação (peça central)
   ========================================================================== */

.trail {
  padding-block: calc(var(--sec-pad) * 0.7);
}

.trail-head {
  text-align: center;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.trail-sub {
  margin-top: 0.5rem;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
}

.trail-track {
  position: relative;
  max-width: 880px;
  margin-inline: auto;
  padding-block: 0.5rem;
}

.trail-rail {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  translate: -50% 0;
  background: var(--line-on-paper);
  border-radius: 2px;
  overflow: hidden;
}

.trail-rail-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--wine-500), var(--wine-700));
  transform: scaleY(0);
  transform-origin: top;
  will-change: transform;
}

.trail-steps {
  display: flex;
  flex-direction: column;
  gap: clamp(1.1rem, 2.4vw, 1.6rem);
  counter-reset: none;
}

.trail-step {
  position: relative;
  width: 50%;
}

.trail-step:nth-child(odd) {
  padding-right: clamp(2.6rem, 5vw, 3.6rem);
  text-align: right;
}

.trail-step:nth-child(even) {
  margin-left: 50%;
  padding-left: clamp(2.6rem, 5vw, 3.6rem);
  text-align: left;
}

.trail-node {
  position: absolute;
  top: 50%;
  width: 44px;
  height: 44px;
  translate: 0 -50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--line-on-paper);
  color: var(--ink-dim);
  font-size: 0.85rem;
  letter-spacing: 0;
  z-index: 1;
  transition:
    background-color 0.4s var(--ease-out),
    border-color 0.4s var(--ease-out),
    color 0.4s var(--ease-out),
    transform 0.5s var(--ease-spring),
    box-shadow 0.4s var(--ease-out);
}

.trail-step:nth-child(odd) .trail-node {
  right: -22px;
}

.trail-step:nth-child(even) .trail-node {
  left: -22px;
}

.trail-body {
  display: inline-block;
  background: var(--paper-card);
  border: 1px solid rgba(36, 28, 21, 0.08);
  border-radius: 12px;
  padding: 0.95rem 1.3rem;
  transition:
    border-color 0.4s var(--ease-out),
    box-shadow 0.4s var(--ease-out),
    transform 0.4s var(--ease-out);
}

.trail-body h3 {
  font-size: 1rem;
  font-weight: 600;
}

.trail-step.is-active .trail-node {
  background: var(--wine-700);
  border-color: var(--wine-700);
  color: var(--cream);
  transform: scale(1.08);
  box-shadow: 0 0 0 5px rgba(109, 27, 48, 0.14);
}

.trail-step.is-active .trail-body {
  border-color: rgba(109, 27, 48, 0.28);
  box-shadow: var(--shadow-card);
}

/* estado de entrada controlado por JS (progressivo com o rail) */
html.js .trail-step {
  opacity: 0.4;
  transition: opacity 0.5s var(--ease-out);
}

html.js .trail-step.is-active {
  opacity: 1;
}

.trail-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--wine-700);
  text-align: center;
}

.trail-footer::before,
.trail-footer::after {
  content: "";
  width: clamp(2rem, 8vw, 5rem);
  height: 1px;
  background: var(--line-on-paper);
}

@media (max-width: 820px) {
  .trail-rail {
    left: 21px;
    translate: 0;
  }

  .trail-step,
  .trail-step:nth-child(odd),
  .trail-step:nth-child(even) {
    width: 100%;
    margin-left: 0;
    padding: 0 0 0 4rem;
    text-align: left;
  }

  .trail-step:nth-child(odd) .trail-node,
  .trail-step:nth-child(even) .trail-node {
    left: 0;
    right: auto;
  }

  .trail-body {
    display: block;
  }
}

/* ==========================================================================
   Curriculum (banda papel) — índice editorial
   ========================================================================== */

.curriculum {
  padding-block: calc(var(--sec-pad) * 0.7) var(--sec-pad);
}

.curriculum-list {
  border-bottom: 1px solid var(--line-on-paper);
}

.curriculum-item {
  display: grid;
  grid-template-columns: 3.6rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding-block: clamp(1.1rem, 2.4vw, 1.6rem);
  border-top: 1px solid var(--line-on-paper);
  transition: background-color 0.35s var(--ease-out);
}

.curriculum-num {
  color: var(--wine-700);
  font-size: 0.82rem;
}

.curriculum-text {
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.25;
  transition: transform 0.45s var(--ease-out), color 0.3s var(--ease-out);
}

.curriculum-arrow {
  width: 22px;
  height: 22px;
  color: var(--wine-700);
  opacity: 0;
  transform: translateX(-10px);
  transition:
    opacity 0.35s var(--ease-out),
    transform 0.45s var(--ease-spring);
}

.curriculum-item:hover {
  background: linear-gradient(90deg, rgba(109, 27, 48, 0.05), transparent 70%);
}

.curriculum-item:hover .curriculum-text {
  transform: translateX(8px);
  color: var(--wine-800);
}

.curriculum-item:hover .curriculum-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ==========================================================================
   Corpo docente (banda escura)
   ========================================================================== */

.faculty {
  padding-block: var(--sec-pad);
  background:
    radial-gradient(50rem 34rem at 0% 0%, rgba(109, 27, 48, 0.16), transparent 60%),
    var(--ink-900);
}

.faculty-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.faculty-copy h2 {
  margin-top: 1.4rem;
}

.faculty-copy > p {
  margin-top: 1.4rem;
  color: var(--cream-dim);
  line-height: 1.7;
  max-width: 44ch;
}

.faculty-point {
  padding-block: 1.5rem;
  border-top: 1px solid var(--line-on-dark);
}

.faculty-point:last-child {
  border-bottom: 1px solid var(--line-on-dark);
}

.faculty-point h3 {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 1.08rem;
  color: var(--cream);
}

.faculty-point h3::before {
  content: "";
  flex: none;
  width: 1.1rem;
  height: 2px;
  translate: 0 -0.2em;
  background: var(--wine-400);
}

.faculty-point p {
  margin-top: 0.55rem;
  padding-left: 1.85rem;
  color: var(--cream-dim);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ==========================================================================
   Formatos (banda escura)
   ========================================================================== */

.formats {
  padding-block: 0 var(--sec-pad);
}

.formats-head {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.formats-title {
  max-width: 24ch;
  margin-top: 1.2rem;
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: stretch;
}

.format-card {
  position: relative;
  border-radius: 18px;
  padding: clamp(1.75rem, 3.4vw, 2.6rem);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.25rem;
  transition:
    transform 0.5s var(--ease-spring),
    box-shadow 0.4s var(--ease-out),
    border-color 0.4s var(--ease-out);
}

.format-kicker {
  color: var(--wine-300);
  font-size: 0.7rem;
  margin-bottom: 0.6rem;
}

.format-highlight .format-kicker {
  color: var(--wine-700);
}

.format-card h3 {
  font-family: var(--font-serif);
  font-weight: 560;
  font-size: clamp(1.4rem, 2vw, 1.85rem);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.format-lead {
  line-height: 1.65;
  font-size: 0.97rem;
}

/* Lista de benefícios */
.format-list {
  display: grid;
  gap: 0.7rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-on-dark);
}

.format-highlight .format-list {
  border-top-color: rgba(36, 28, 21, 0.14);
}

.format-list li {
  position: relative;
  padding-left: 1.75rem;
  font-size: 0.93rem;
  line-height: 1.5;
}

.format-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.34em;
  width: 15px;
  height: 8px;
  border-left: 1.8px solid var(--wine-300);
  border-bottom: 1.8px solid var(--wine-300);
  rotate: -45deg;
}

.format-highlight .format-list li::before {
  border-color: var(--wine-700);
}

.format-card .btn {
  margin-top: auto;
}

.format-individual {
  background: linear-gradient(180deg, var(--ink-800), var(--ink-850));
  border: 1px solid var(--line-on-dark);
  color: var(--cream-dim);
  overflow: hidden;
}

.format-individual h3 {
  color: var(--cream);
}

.format-individual:hover {
  transform: translateY(-4px);
  border-color: var(--line-on-dark-strong);
}

/* brilho que segue o cursor (JS define --mx / --my) */
.format-individual::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    22rem 18rem at var(--mx, 50%) var(--my, 50%),
    rgba(243, 237, 228, 0.07),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  pointer-events: none;
}

.format-individual:hover::after {
  opacity: 1;
}

.format-highlight {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0) 32%),
    var(--paper);
  color: var(--ink-text);
  border: 1px solid rgba(109, 27, 48, 0.3);
  box-shadow: var(--shadow-lift);
  padding-top: clamp(2.4rem, 4vw, 3.2rem);
}

.format-highlight .format-lead,
.format-highlight .format-list {
  color: var(--ink-dim);
}

.format-highlight h3 {
  color: var(--ink-text);
}

.format-highlight:hover {
  transform: translateY(-5px);
}

.badge {
  position: absolute;
  top: 0;
  left: clamp(1.75rem, 3.4vw, 2.6rem);
  translate: 0 -50%;
  display: inline-block;
  background: linear-gradient(180deg, var(--wine-600), var(--wine-700));
  color: var(--cream);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  white-space: nowrap;
  box-shadow:
    inset 0 1px 0 rgba(243, 237, 228, 0.16),
    0 3px 12px rgba(69, 16, 32, 0.45);
}

@media (max-width: 420px) {
  .badge {
    white-space: normal;
    left: 50%;
    translate: -50% -50%;
    text-align: center;
  }
}

/* ==========================================================================
   Sobre (banda escura)
   ========================================================================== */

.about {
  padding-block: var(--sec-pad);
  background:
    radial-gradient(56rem 38rem at 100% 20%, rgba(109, 27, 48, 0.2), transparent 60%),
    var(--ink-850);
  overflow: hidden;
}

.about-ghost {
  position: absolute;
  top: 50%;
  right: -0.06em;
  translate: 0 -50%;
  font-size: clamp(11rem, 26vw, 24rem);
  font-weight: 600;
  font-style: italic;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(243, 237, 228, 0.06);
  pointer-events: none;
  user-select: none;
}

.about-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.about-copy p {
  margin-top: 1.4rem;
  color: var(--cream-dim);
  line-height: 1.7;
  max-width: 54ch;
}

.stat-strip-vertical {
  margin-top: 0;
  display: flex;
  flex-direction: column;
  border-top: 0;
  border-left: 1px solid var(--line-on-dark);
}

.stat-strip-vertical .stat {
  padding: 1.1rem 0 1.1rem 1.75rem;
  border-left: 0;
}

.stat-strip-vertical .stat + .stat {
  border-top: 1px solid var(--line-on-dark);
  border-left: 0;
  padding-left: 1.75rem;
}

/* ==========================================================================
   FAQ (banda papel)
   ========================================================================== */

.faq {
  padding-block: var(--sec-pad);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.faq-head .section-index {
  margin-bottom: 1rem;
  display: inline-block;
}

.faq-head h2 {
  max-width: 12ch;
}

.faq-list {
  border-bottom: 1px solid var(--line-on-paper);
}

.faq-item {
  border-top: 1px solid var(--line-on-paper);
}

.faq-h {
  margin: 0;
  font: inherit;
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
  text-align: left;
  padding-block: 1.3rem;
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.35;
  color: var(--ink-text);
  transition: color 0.3s var(--ease-out);
}

.faq-q:hover {
  color: var(--wine-700);
}

.faq-icon {
  position: relative;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line-on-paper);
  transition:
    transform 0.5s var(--ease-spring),
    background-color 0.35s var(--ease-out),
    border-color 0.35s var(--ease-out);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 1.6px;
  translate: -50% -50%;
  background: var(--wine-700);
  transition: background-color 0.35s var(--ease-out);
}

.faq-icon::after {
  rotate: 90deg;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  background: var(--wine-700);
  border-color: var(--wine-700);
}

.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after {
  background: var(--cream);
}

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease-out);
}

.faq-a-inner {
  overflow: hidden;
}

.faq-a-inner p {
  padding-bottom: 1.4rem;
  max-width: 60ch;
  color: var(--ink-dim);
  font-size: 0.96rem;
  line-height: 1.7;
}

.faq-item.is-open .faq-a {
  grid-template-rows: 1fr;
}

/* ==========================================================================
   CTA final
   ========================================================================== */

.final-cta {
  position: relative;
  padding-block: var(--sec-pad);
  text-align: center;
  color: var(--cream);
  background: linear-gradient(165deg, var(--wine-900), var(--wine-700) 90%);
  overflow: hidden;
}

.final-cta-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(46rem 30rem at 50% -20%, rgba(243, 237, 228, 0.1), transparent 60%),
    radial-gradient(40rem 28rem at 90% 110%, rgba(18, 14, 11, 0.4), transparent 60%);
}

.final-cta .container {
  position: relative;
}

.final-cta h2 {
  max-width: 22ch;
  margin-inline: auto;
}

.final-cta .serif-accent {
  color: var(--wine-200);
}

.final-cta p {
  margin-top: 1.2rem;
  color: rgba(243, 237, 228, 0.85);
  font-size: 1.1rem;
}

.final-cta .btn {
  margin-top: 2.2rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--ink-950);
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line-on-dark);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-logo {
  width: auto;
  height: 44px;
  opacity: 0.9;
}

.footer-info {
  color: var(--cream-faint);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  line-height: 2;
  text-align: right;
}

/* ==========================================================================
   Flutuantes
   ========================================================================== */

.sticky-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 210;
  padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
  background: rgba(23, 19, 16, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--line-on-dark);
  transform: translateY(110%);
  transition: transform 0.5s var(--ease-out);
}

.sticky-bar.is-visible {
  transform: translateY(0);
}

@media (max-width: 820px) {
  .sticky-bar {
    display: block;
  }
}

/* ==========================================================================
   Sistema de reveal por scroll
   ========================================================================== */

html.js [data-reveal] {
  opacity: 0;
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.9s var(--ease-out);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}

/* No mobile o hero inteiro cabe em poucas rolagens: encurtar a cascata
   evita que a faixa de estatísticas pareça atrasada ao abrir a página. */
@media (max-width: 820px) {
  html.js .hero [data-reveal] {
    transition-duration: 0.65s;
    transition-delay: calc(var(--d, 0s) * 0.5);
  }
}

html.js [data-reveal="up"] {
  transform: translateY(26px);
}

html.js [data-reveal="left"] {
  transform: translateX(30px);
}

html.js [data-reveal="right"] {
  transform: translateX(34px);
}

html.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   Movimento reduzido
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  html.js .trail-step {
    opacity: 1;
  }

  .trail-rail-fill {
    transform: scaleY(1);
  }
}

/* ==========================================================================
   Responsivo
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-copy h1 {
    max-width: 20ch;
  }

  .hero-form-wrap {
    max-width: 560px;
    width: 100%;
    margin-inline: auto;
  }
}

@media (max-width: 900px) {
  .faculty-grid,
  .about-grid,
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .stat-strip-vertical {
    flex-direction: row;
    border-left: 0;
    border-top: 1px solid var(--line-on-dark);
  }

  .stat-strip-vertical .stat {
    flex: 1;
    padding: 1.2rem 1rem 0 0;
  }

  .stat-strip-vertical .stat + .stat {
    border-top: 0;
    border-left: 1px solid var(--line-on-dark);
    padding-left: 1.25rem;
  }

  .about-ghost {
    font-size: clamp(9rem, 34vw, 15rem);
    top: auto;
    bottom: -0.1em;
    translate: 0;
  }

  .pain-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pain-col,
  .pain-col + .pain-col {
    border-left: 0;
    padding: 0;
  }

  .pain-col + .pain-col {
    border-top: 1px solid var(--line-on-paper);
    padding-top: 2rem;
  }
}

@media (max-width: 760px) {
  .differentials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  /* Hero compacto: a faixa de estatísticas precisa caber na primeira tela,
     senão a prova social só aparece depois de rolar. */
  .hero {
    padding-top: calc(var(--header-h) + 1.25rem);
  }

  .hero-copy h1 {
    margin-top: 0.9rem;
    font-size: clamp(1.95rem, 8.2vw, 2.4rem);
    line-height: 1.12;
  }

  .subhead {
    font-size: 1rem;
    line-height: 1.55;
  }

  .subhead {
    margin-top: 0.9rem;
  }

  .hero-actions {
    margin-top: 1.4rem;
    gap: 0.8rem;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stat-strip {
    margin-top: 1.6rem;
  }

  .stat {
    padding-top: 1rem;
  }

  .stat dd {
    font-size: 1.7rem;
  }

  .stat,
  .stat + .stat {
    padding-left: 0.9rem;
    padding-right: 0.5rem;
  }

  .stat:first-child {
    padding-left: 0;
  }

  /* Cartões de logo proporcionais à tela pequena: grandes o suficiente para
     a marca respirar, sem ocupar meia viewport cada. */
  .clients-track .client-tile {
    flex-basis: 168px;
    width: 168px;
    height: 118px;
  }

  .clients-track .client-tile img {
    max-height: 104px;
    max-width: 148px;
  }

  .curriculum-item {
    grid-template-columns: 2.4rem 1fr auto;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-info {
    text-align: left;
  }
}