/* ============================================================
   WALLACE MACHADO — ECOSSISTEMA DE ENSINO
   Design System v1.0 — "Fase 1: fundação visual"
   Inspirado na energia do Descomplica, com a identidade Wallace Machado.
   ============================================================ */

/* ---------- TOKENS ---------- */
:root {
  /* Marca */
  --petroleo: #003B46;
  --petroleo-escuro: #00262e;
  --petroleo-claro: #0b5b69;
  --petroleo-suave: #e6f0f2;
  --terracota: #C35A3A;
  --terracota-escuro: #a8462a;
  --terracota-claro: #e0805f;
  --terracota-suave: #fbeee8;
  --offwhite: #F5F5F5;
  --grafite: #2E2E2E;
  --grafite-claro: #5c5c5c;

  /* Acentos vibrantes (energia Descomplica) */
  --ambar: #ffb627;
  --ambar-suave: #fff4dd;
  --verde: #00a878;
  --verde-suave: #e3f7ef;
  --coral: #ff6b6b;
  --coral-suave: #ffecec;
  --roxo: #7c5cbf;
  --roxo-suave: #efeafb;
  --teal: #2ec4b6;
  --teal-suave: #e2f8f5;
  --azul: #3a86ff;
  --azul-suave: #e8f0ff;

  /* Neutros */
  --branco: #ffffff;
  --cinza-100: #f7f7f7;
  --cinza-200: #eeeeee;
  --cinza-300: #e0e0e0;
  --cinza-400: #bdbdbd;

  /* Tipografia */
  --font-display: 'Sora', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Raios */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 59, 70, .08);
  --shadow-md: 0 8px 24px rgba(0, 59, 70, .12);
  --shadow-lg: 0 16px 48px rgba(0, 59, 70, .16);
  --shadow-cta: 0 10px 28px rgba(195, 90, 58, .38);

  /* Transições */
  --ease: cubic-bezier(.22, 1, .36, 1);
  --dur: .35s;
}

/* ---------- RESET / BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--grafite);
  background: var(--branco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--petroleo);
}

.container {
  width: min(1180px, 100% - 40px);
  margin-inline: auto;
}

section { padding: 72px 0; }

/* ---------- TIPOGRAFIA UTILITÁRIA ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; color: var(--terracota);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 3px; border-radius: 3px;
  background: var(--terracota);
}

.titulo-secao { font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 12px; }
.subtitulo-secao { font-size: 1.05rem; color: var(--grafite-claro); max-width: 640px; }
.centro { text-align: center; }
.centro .subtitulo-secao { margin-inline: auto; }
.centro .eyebrow::before { display: none; }

/* ---------- BOTÕES ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px; border-radius: var(--radius-pill);
  font-weight: 800; font-size: 1rem; line-height: 1;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }

.btn-primario {
  background: linear-gradient(135deg, var(--terracota), var(--terracota-escuro));
  color: #fff; box-shadow: var(--shadow-cta);
}
.btn-primario:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(195, 90, 58, .45); }

.btn-petroleo { background: var(--petroleo); color: #fff; box-shadow: var(--shadow-md); }
.btn-petroleo:hover { transform: translateY(-3px); background: var(--petroleo-claro); }

.btn-branco { background: #fff; color: var(--petroleo); box-shadow: var(--shadow-md); }
.btn-branco:hover { transform: translateY(-3px); }

.btn-contorno { border: 2px solid var(--petroleo); color: var(--petroleo); background: transparent; }
.btn-contorno:hover { background: var(--petroleo); color: #fff; transform: translateY(-3px); }

.btn-grande { padding: 18px 40px; font-size: 1.08rem; }
.btn-bloco { width: 100%; }

.btn:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }

/* ---------- BADGES / SELOS ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: var(--radius-pill);
  font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
}
.badge-terracota { background: var(--terracota-suave); color: var(--terracota-escuro); }
.badge-petroleo { background: var(--petroleo-suave); color: var(--petroleo); }
.badge-ambar { background: var(--ambar-suave); color: #9a6b00; }
.badge-verde { background: var(--verde-suave); color: #007a55; }
.badge-roxo { background: var(--roxo-suave); color: var(--roxo); }
.badge-branco { background: rgba(255,255,255,.18); color: #fff; backdrop-filter: blur(6px); }

/* ---------- CARDS ---------- */
.card {
  background: var(--branco); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); border: 1px solid var(--cinza-200);
  overflow: hidden; transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }

/* Card de curso */
.card-curso { display: flex; flex-direction: column; height: 100%; }
.card-curso__capa {
  height: 168px; position: relative; overflow: hidden;
  display: flex; align-items: flex-end; padding: 16px;
}
.card-curso__capa .badge { position: absolute; top: 14px; left: 14px; z-index: 2; }
.card-curso__icone {
  position: absolute; right: -18px; bottom: -24px;
  font-size: 7rem; opacity: .22; transform: rotate(-12deg); line-height: 1;
  user-select: none;
}
.card-curso__area { position: relative; z-index: 1; color: #fff; font-weight: 800; font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; opacity: .95; }
.card-curso__corpo { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-curso__titulo { font-size: 1.12rem; font-weight: 800; }
.card-curso__desc { font-size: .9rem; color: var(--grafite-claro); flex: 1; }
.card-curso__meta { display: flex; gap: 14px; font-size: .8rem; color: var(--grafite-claro); font-weight: 600; }
.card-curso__meta span { display: inline-flex; align-items: center; gap: 6px; }
.card-curso__rodape { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; padding-top: 14px; border-top: 1px dashed var(--cinza-300); }
.preco { display: flex; flex-direction: column; line-height: 1.2; }
.preco__de { font-size: .8rem; color: var(--grafite-claro); text-decoration: line-through; }
.preco__por { font-size: 1.35rem; font-weight: 800; color: var(--petroleo); font-family: var(--font-display); }
.preco__parcela { font-size: .75rem; color: var(--grafite-claro); }

/* Capas coloridas por área */
.capa-farmaco { background: linear-gradient(135deg, #C35A3A, #8f3a22); }
.capa-urgencia { background: linear-gradient(135deg, #ff6b6b, #c0392b); }
.capa-calculos { background: linear-gradient(135deg, #ffb627, #e08a00); }
.capa-questoes { background: linear-gradient(135deg, #7c5cbf, #4e3591); }
.capa-fundamentos { background: linear-gradient(135deg, #2ec4b6, #0b7d74); }
.capa-gestao { background: linear-gradient(135deg, #00a878, #006e4f); }
.capa-semiologia { background: linear-gradient(135deg, #3a86ff, #1d4fb8); }
.capa-petroleo { background: linear-gradient(135deg, #0b5b69, #003B46); }

/* ---------- FORMULÁRIOS ---------- */
.campo { margin-bottom: 18px; }
.campo label { display: block; font-weight: 700; font-size: .88rem; margin-bottom: 8px; color: var(--petroleo); }
.input, .select, .textarea {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-sm);
  border: 2px solid var(--cinza-300); background: var(--branco);
  transition: border-color .2s, box-shadow .2s; color: var(--grafite);
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--terracota);
  box-shadow: 0 0 0 4px rgba(195, 90, 58, .12);
}
.input::placeholder { color: var(--cinza-400); }
.textarea { min-height: 120px; resize: vertical; }

.check { display: flex; gap: 10px; align-items: flex-start; font-size: .88rem; color: var(--grafite-claro); }
.check input { width: 20px; height: 20px; accent-color: var(--terracota); margin-top: 2px; flex-shrink: 0; }

.form-erro {
  display: none; background: var(--coral-suave); color: #b03a3a;
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: .88rem; font-weight: 600; margin-bottom: 16px;
}
.form-erro.visivel { display: block; }

/* ---------- BARRA DE PROGRESSO ---------- */
.progresso { height: 10px; background: var(--cinza-200); border-radius: 99px; overflow: hidden; }
.progresso__barra {
  height: 100%; border-radius: 99px;
  background: linear-gradient(90deg, var(--terracota), var(--ambar));
  transition: width 1s var(--ease);
}

/* ---------- REVEAL ON SCROLL ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visivel { opacity: 1; transform: none; }
.reveal--esq { transform: translateX(-48px); }
.reveal--dir { transform: translateX(48px); }
.reveal--esq.visivel, .reveal--dir.visivel { transform: none; }
.reveal--atraso-1 { transition-delay: .12s; }
.reveal--atraso-2 { transition-delay: .24s; }
.reveal--atraso-3 { transition-delay: .36s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- HEADER ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--cinza-200);
}
.header__in { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 800; font-size: 1.15rem; color: var(--petroleo); white-space: nowrap; flex-shrink: 0; }
.logo__marca {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--petroleo), var(--petroleo-claro));
  color: #fff; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800; font-size: 1rem;
  font-style: italic;
}
.logo small { display: block; font-size: .62rem; font-weight: 700; letter-spacing: .18em; color: var(--terracota); line-height: 1; }
.nav { display: flex; gap: 24px; align-items: center; flex-shrink: 0; }
.nav a { font-weight: 600; font-size: .95rem; color: var(--grafite); transition: color .2s; white-space: nowrap; }
.nav a:hover { color: var(--terracota); }
.header__acoes { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
.menu-mobile-btn { display: none; font-size: 1.6rem; color: var(--petroleo); padding: 8px; }

/* ---------- FOOTER ---------- */
.footer { background: var(--petroleo-escuro); color: #d7e3e6; padding: 64px 0 28px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 44px; }
.footer .logo { color: #fff; }
.footer h4 { color: #fff; font-size: .95rem; margin-bottom: 16px; }
.footer ul { display: grid; gap: 10px; }
.footer ul a { font-size: .92rem; opacity: .85; transition: opacity .2s, color .2s; }
.footer ul a:hover { opacity: 1; color: var(--ambar); }
.footer__base { border-top: 1px solid rgba(255,255,255,.12); padding-top: 24px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .82rem; opacity: .75; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 36px auto 0; display: grid; gap: 12px; }
.faq__item { background: #fff; border: 1px solid var(--cinza-200); border-radius: var(--radius-md); overflow: hidden; transition: box-shadow .25s; }
.faq__item.aberto { box-shadow: var(--shadow-md); }
.faq__pergunta {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 22px; font-weight: 700; color: var(--petroleo); text-align: left; font-size: 1rem;
}
.faq__icone { flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; background: var(--terracota-suave); color: var(--terracota); display: grid; place-items: center; font-weight: 800; transition: transform .3s var(--ease), background .3s, color .3s; }
.faq__item.aberto .faq__icone { transform: rotate(45deg); background: var(--terracota); color: #fff; }
.faq__resposta { max-height: 0; overflow: hidden; transition: max-height .4s var(--ease); }
.faq__resposta p { padding: 0 22px 20px; color: var(--grafite-claro); font-size: .95rem; }

/* ---------- RESPONSIVO BASE ---------- */
@media (max-width: 1150px) and (min-width: 901px) {
  .nav { gap: 16px; }
  .nav a { font-size: .88rem; }
  .header__acoes { gap: 8px; }
  .header__acoes .btn { padding: 10px 16px !important; font-size: .88rem; }
}
@media (max-width: 900px) {
  .nav, .header__acoes .btn-contorno { display: none; }
  .menu-mobile-btn { display: block; }
  .nav--aberto {
    display: flex; position: fixed; inset: 72px 0 auto 0; z-index: 99;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--cinza-200);
    box-shadow: var(--shadow-lg); padding: 8px 20px 20px;
  }
  .nav--aberto a { padding: 14px 4px; border-bottom: 1px solid var(--cinza-200); font-size: 1.05rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  section { padding: 52px 0; }
}
@media (max-width: 560px) {
  .footer__grid { grid-template-columns: 1fr; }
  .btn-grande { width: 100%; }
}