/* ==========================================================================
   Claude Code Descomplicado — Landing Page
   Conceito: a página narra a transição de "papel" (pensamento, dúvida,
   linguagem comum) para "terminal" (comando, execução, resultado real).
   Seções alternam entre um fundo claro tipo papel e um fundo escuro tipo
   terminal — isso É a promessa do curso, não só decoração.
   ========================================================================== */

/* ---------- Fontes ---------- */
@import url("https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,500&family=Public+Sans:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap");

/* ---------- Tokens ---------- */
:root {
  /* Identidade oficial KyCurso */
  --brand-navy: #06263d;
  --brand-navy-deep: #031b2c;
  --brand-teal: #149889;
  --brand-teal-light: #39b9a9;
  --brand-gold: #f6b73c;

  /* Paleta clara (papel) */
  --paper: #f1efe9;
  --paper-raised: #fbfaf6;
  --stone-100: #e7e2d5;
  --stone-300: #d3ccba;
  --ink-900: #1d1a15;
  --ink-700: #4a453c;
  --ink-500: #766f61;

  --brass-600: #d58d12;
  --brass-500: #eda72a;
  --brass-100: #fff0c9;

  --teal-800: #0b645d;
  --teal-100: #d7f1ed;

  --sage-600: #4f7355;

  --danger-600: #a13d3d;

  /* Paleta escura (terminal) */
  --ink-950: #031b2c;
  --ink-880: #06263d;
  --ink-800: #0a314a;
  --ink-750: #17445d;
  --paper-100: #f1efe9;
  --paper-200: #cfc9bc;
  --brass-300: #f6b73c;
  --brass-200: #ffd77f;

  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 22px;

  --shadow-card: 0 1px 2px rgba(29, 26, 21, 0.06), 0 12px 32px -12px rgba(29, 26, 21, 0.18);
  --shadow-card-dark: 0 1px 2px rgba(0, 0, 0, 0.3), 0 20px 40px -16px rgba(0, 0, 0, 0.55);

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Public Sans", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Consolas", monospace;

  --measure: 62ch;

  color-scheme: light;
}

:root[data-theme="dark"] {
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@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; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 24px;
}

section { padding-block: clamp(64px, 9vw, 128px); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--brass-600);
  font-weight: 500;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: var(--brass-600); display: inline-block; }

p.lede { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--ink-700); max-width: var(--measure); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15.5px;
  padding: 15px 28px;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--brass-600);
  color: var(--paper-100);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08), 0 10px 24px -10px rgba(168, 103, 42, 0.55);
}
.btn-primary:hover { background: #96591f; }
.btn-ghost {
  background: transparent;
  color: var(--ink-900);
  border-color: var(--stone-300);
}
.btn-ghost:hover { border-color: var(--ink-500); }
.btn-on-dark { background: var(--brass-300); color: var(--ink-950); box-shadow: 0 10px 24px -10px rgba(232, 183, 107, 0.4); }
.btn-on-dark:hover { background: var(--brass-200); }
.btn-sm { padding: 10px 18px; font-size: 14px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header.is-scrolled { border-color: var(--stone-300); box-shadow: 0 4px 20px -12px rgba(29,26,21,0.25); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; text-decoration: none; color: var(--ink-900); flex-shrink: 0; }
.brand-logo { display: block; width: auto; height: 47px; object-fit: contain; }
.brand-logo--dark { display: none; }
.footer-brand { display: flex; align-items: center; gap: 18px; }
.footer-brand .brand-logo { height: 42px; border-radius: 5px; }
.footer-brand-copy { display: grid; gap: 2px; }
.footer-brand-copy small { color: var(--paper-200); opacity: 0.78; }
.logo .dot { color: var(--brass-600); }
.nav-links { display: flex; align-items: center; gap: 32px; font-size: 14.5px; font-weight: 600; }
.nav-links a { text-decoration: none; color: var(--ink-700); }
.nav-links a:hover { color: var(--ink-900); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .brand-logo { height: 40px; }
}

/* ---------- Hero ---------- */
.hero { padding-top: clamp(48px, 8vw, 88px); }
.hero .container { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { font-size: clamp(2.3rem, 4.4vw, 3.6rem); }
.hero h1 em { font-style: italic; color: var(--brass-600); font-weight: 500; }
.hero-sub { margin-top: 22px; font-size: clamp(1.05rem, 1.7vw, 1.22rem); color: var(--ink-700); max-width: 46ch; }
.hero-cta-row { display: flex; align-items: center; gap: 18px; margin-top: 34px; flex-wrap: wrap; }
.hero-note { font-size: 13.5px; color: var(--ink-500); }
.hero-trust { display: flex; gap: 28px; margin-top: 40px; flex-wrap: wrap; }
.hero-trust div { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-500); display: flex; align-items: center; gap: 8px; }
.hero-trust svg { width: 15px; height: 15px; color: var(--sage-600); flex-shrink: 0; }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
}

/* ---------- Terminal card (peça central do conceito visual) ---------- */
.terminal-card {
  background: var(--ink-950);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-card-dark);
  overflow: hidden;
  font-family: var(--font-mono);
  border: 1px solid var(--ink-750);
}
.terminal-bar { display: flex; align-items: center; gap: 8px; padding: 14px 18px; background: var(--ink-880); border-bottom: 1px solid var(--ink-750); }
.terminal-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--ink-750); }
.terminal-bar span:nth-child(1) { background: #c9645a; }
.terminal-bar span:nth-child(2) { background: #d6a94f; }
.terminal-bar span:nth-child(3) { background: #6f9f77; }
.terminal-bar-title { margin-left: 8px; font-size: 12px; color: var(--paper-200); }
.terminal-body { padding: 22px 22px 26px; font-size: 13.5px; line-height: 1.75; color: var(--paper-200); min-height: 220px; }
.t-line { display: flex; gap: 10px; margin-bottom: 10px; }
.t-prompt { color: var(--brass-300); flex-shrink: 0; }
.t-user { color: var(--paper-100); }
.t-out { color: var(--paper-200); padding-left: 22px; }
.t-out strong { color: var(--brass-200); font-weight: 600; }
.t-cursor { display: inline-block; width: 7px; height: 14px; background: var(--brass-300); margin-left: 2px; animation: blink 1s steps(1) infinite; vertical-align: middle; }
@keyframes blink { 50% { opacity: 0; } }
.t-typing { border-right: 2px solid var(--brass-300); white-space: nowrap; overflow: hidden; display: inline-block; }

/* ---------- Seções escuras (banda "terminal") ---------- */
.band-dark { background: var(--ink-950); color: var(--paper-100); }
.band-dark .eyebrow { color: var(--brass-300); }
.band-dark .eyebrow::before { background: var(--brass-300); }
.band-dark p.lede { color: var(--paper-200); }
.band-dark h2, .band-dark h3 { color: var(--paper-100); }

/* ---------- Seção: dores ---------- */
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.pain-card { background: var(--paper-raised); border: 1px solid var(--stone-300); border-radius: var(--radius-m); padding: 26px 24px; }
.pain-card .mark { font-family: var(--font-mono); color: var(--danger-600); font-size: 13px; font-weight: 600; }
.pain-card p { margin: 12px 0 0; color: var(--ink-700); font-size: 15px; }
@media (max-width: 860px) { .pain-grid { grid-template-columns: 1fr; } }

/* ---------- Seção: virada ---------- */
.flip-section .container { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.flip-visual { display: flex; flex-direction: column; gap: 14px; }
.flip-row { display: flex; align-items: center; gap: 14px; font-family: var(--font-mono); font-size: 13.5px; padding: 14px 16px; border-radius: var(--radius-s); }
.flip-row.before { background: var(--stone-100); color: var(--ink-500); text-decoration: line-through; }
.flip-row.after { background: var(--ink-950); color: var(--brass-300); }
.flip-arrow { align-self: center; color: var(--brass-600); font-size: 20px; }
@media (max-width: 900px) { .flip-section .container { grid-template-columns: 1fr; } }

/* ---------- Para quem é ---------- */
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 48px; }
.audience-card { border-radius: var(--radius-m); padding: 30px 28px; }
.audience-card.yes { background: var(--teal-100); border: 1px solid #c1d6d1; }
.audience-card.no { background: var(--stone-100); border: 1px solid var(--stone-300); }
.audience-card h3 { font-size: 1.1rem; margin-bottom: 18px; }
.audience-card ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.audience-card li { display: flex; gap: 10px; font-size: 15px; color: var(--ink-700); }
.audience-card.yes li::before { content: "✓"; color: var(--sage-600); font-weight: 700; }
.audience-card.no li::before { content: "✕"; color: var(--danger-600); font-weight: 700; }
@media (max-width: 860px) { .audience-grid { grid-template-columns: 1fr; } }

/* ---------- Currículo (accordion estilo terminal) ---------- */
.curriculum-list { margin-top: 44px; border-top: 1px solid var(--ink-750); }
.module {
  border-bottom: 1px solid var(--ink-750);
}
.module-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 4px;
  background: none;
  border: none;
  color: var(--paper-100);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}
.module-num { font-family: var(--font-mono); color: var(--brass-300); font-size: 13px; width: 34px; flex-shrink: 0; }
.module-title { font-family: var(--font-display); font-size: 1.08rem; font-weight: 600; flex: 1; }
.module-chevron { color: var(--paper-200); transition: transform 0.2s ease; flex-shrink: 0; }
.module[data-open="true"] .module-chevron { transform: rotate(45deg); }
.module-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
}
.module[data-open="true"] .module-body { grid-template-rows: 1fr; }
.module-body-inner { overflow: hidden; }
.module-body p { margin: 0 0 18px 54px; color: var(--paper-200); font-size: 14.5px; max-width: 58ch; }
.module-tag { margin-left: 54px; display: inline-block; font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-950); background: var(--brass-300); padding: 3px 9px; border-radius: 999px; margin-bottom: 14px; font-weight: 600; }

/* ---------- Depoimentos ---------- */
.testi-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 22px; margin-top: 48px; }
.testi-card { background: var(--paper-raised); border: 1px solid var(--stone-300); border-radius: var(--radius-m); padding: 26px; box-shadow: var(--shadow-card); }
.testi-card { grid-column: span 2; }
.testi-card:nth-child(n+4) { grid-column: span 3; }
.testi-stars { color: var(--brass-600); font-size: 13px; letter-spacing: 2px; margin-bottom: 14px; }
.testi-card p { font-size: 15px; color: var(--ink-700); margin: 0 0 18px; }
.testi-person { display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.testi-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--brass-100); color: var(--brass-600); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; font-size: 14px; flex-shrink: 0; overflow: hidden; }
.testi-avatar--photo { background-image: url("../images/testimonial-avatars-synthetic.png"); background-size: 300% 100%; background-repeat: no-repeat; border: 2px solid color-mix(in srgb, var(--brand-teal) 45%, transparent); }
.testi-avatar--photo-1 { background-position: 0 center; }
.testi-avatar--photo-2 { background-position: 50% center; }
.testi-avatar--photo-3 { background-position: 100% center; }
.testi-person strong { display: block; color: var(--ink-900); }
.testi-person span { color: var(--ink-500); }
.testi-placeholder-note { margin-top: 28px; font-size: 12.5px; color: var(--ink-500); font-family: var(--font-mono); }
@media (max-width: 900px) {
  .testi-grid { grid-template-columns: 1fr 1fr; }
  .testi-card, .testi-card:nth-child(n+4) { grid-column: span 1; }
  .testi-card:last-child { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .testi-grid { grid-template-columns: 1fr; }
  .testi-card, .testi-card:nth-child(n+4), .testi-card:last-child { grid-column: auto; }
}

/* ---------- Instrutor ---------- */
.instructor .container { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 48px; align-items: center; }
.instructor-photo { aspect-ratio: 4/5; border-radius: var(--radius-m); background: linear-gradient(160deg, var(--brass-100), var(--stone-100)); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-500); text-align: center; padding: 20px; border: 1px solid var(--stone-300); }
.instructor-credentials { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.credential { font-family: var(--font-mono); font-size: 12px; background: var(--paper-raised); border: 1px solid var(--stone-300); padding: 6px 12px; border-radius: 999px; color: var(--ink-700); }
@media (max-width: 860px) { .instructor .container { grid-template-columns: 1fr; } .instructor-photo { max-width: 240px; } }

/* ---------- Oferta ---------- */
.offer-card {
  max-width: 620px;
  margin-inline: auto;
  background: var(--paper-raised);
  border: 1px solid var(--stone-300);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-card);
  padding: clamp(28px, 5vw, 48px);
  text-align: center;
}
.offer-badge { display: inline-block; font-family: var(--font-mono); font-size: 12px; background: var(--brass-100); color: var(--brass-600); padding: 6px 14px; border-radius: 999px; font-weight: 600; }
.offer-price { margin-top: 22px; font-family: var(--font-display); font-size: clamp(2.6rem, 6vw, 3.4rem); font-variant-numeric: tabular-nums; }
.offer-price small { font-size: 1rem; font-family: var(--font-body); color: var(--ink-500); font-weight: 500; }
.offer-installment { font-family: var(--font-mono); color: var(--ink-500); font-size: 13.5px; margin-top: 6px; }
.offer-list { list-style: none; padding: 0; margin: 32px 0; text-align: left; display: flex; flex-direction: column; gap: 14px; }
.offer-list li { display: flex; gap: 12px; font-size: 15px; }
.offer-list li::before { content: "✓"; color: var(--sage-600); font-weight: 700; flex-shrink: 0; }
.offer-card .btn { width: 100%; padding-block: 18px; font-size: 16.5px; }
.offer-guarantee-note { margin-top: 18px; font-size: 13px; color: var(--ink-500); }

/* ---------- Garantia ---------- */
.guarantee .container { display: flex; align-items: center; gap: 40px; }
.guarantee-badge { flex-shrink: 0; width: 128px; height: 128px; border-radius: 50%; border: 2px solid var(--brass-300); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 2.4rem; color: var(--brass-300); }
@media (max-width: 700px) { .guarantee .container { flex-direction: column; text-align: center; } }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 48px auto 0; }
.faq-item { border-bottom: 1px solid var(--stone-300); }
.faq-q { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 22px 4px; background: none; border: none; font-family: var(--font-body); font-weight: 700; font-size: 16px; text-align: left; cursor: pointer; color: var(--ink-900); }
.faq-chevron { flex-shrink: 0; transition: transform 0.2s ease; color: var(--brass-600); }
.faq-item[data-open="true"] .faq-chevron { transform: rotate(180deg); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.25s ease; }
.faq-item[data-open="true"] .faq-a { grid-template-rows: 1fr; }
.faq-a-inner { overflow: hidden; }
.faq-a p { margin: 0 0 20px; color: var(--ink-700); font-size: 15px; max-width: 64ch; }

/* ---------- CTA final ---------- */
.final-cta { text-align: center; }
.final-cta h2 { font-size: clamp(2rem, 4vw, 2.8rem); max-width: 18ch; margin-inline: auto; }
.final-cta .btn { margin-top: 32px; }

/* ---------- Sticky mobile bar ---------- */
.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 50;
  background: var(--ink-950);
  padding: 14px 20px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 -10px 30px -10px rgba(0,0,0,0.4);
  transform: translateY(100%);
  transition: transform 0.25s ease;
}
.sticky-cta.is-visible { transform: translateY(0); }
.sticky-cta span { color: var(--paper-100); font-family: var(--font-mono); font-size: 13px; }
@media (max-width: 700px) { .sticky-cta { display: flex; } }

/* ---------- Footer ---------- */
footer.site-footer { background: var(--ink-950); color: var(--paper-200); padding-block: 56px 100px; }
footer.site-footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; font-size: 13.5px; }
footer.site-footer a { color: var(--paper-200); text-decoration: none; }
footer .foot-links { display: flex; gap: 24px; }
@media (max-width: 700px) { footer.site-footer { padding-bottom: 130px; } }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }