/* ==========================================================================
   EDUALFA — Folha de estilo principal
   Paleta baseada na logo (globo azul + monograma "EA")
   ========================================================================== */

:root {
  /* Cores da marca */
  --navy-900: #061a3a;
  --navy-800: #0a2450;
  --navy-700: #0f2f6b;
  --blue-600: #1747b8;
  --blue-500: #1e56d6;
  --blue-400: #2f74f0;
  --cyan-400: #22c9ec;
  --cyan-300: #58dcf5;
  --cyan-200: #9aebfb;

  --ink: #0c1a2e;
  --muted: #5a6b85;
  --line: #e3eaf5;
  --bg: #ffffff;
  --bg-soft: #f4f8ff;
  --bg-softer: #eef4ff;

  --grad-brand: linear-gradient(135deg, var(--navy-700) 0%, var(--blue-500) 45%, var(--cyan-400) 100%);
  --grad-hero: linear-gradient(140deg, #061a3a 0%, #0f2f6b 40%, #1747b8 75%, #1e88d6 100%);
  --grad-text: linear-gradient(90deg, var(--blue-500), var(--cyan-400));

  --shadow-sm: 0 2px 8px rgba(15, 47, 107, .06);
  --shadow-md: 0 10px 30px rgba(15, 47, 107, .10);
  --shadow-lg: 0 24px 60px rgba(15, 47, 107, .18);

  --radius: 16px;
  --radius-lg: 24px;
  --container: 1200px;

  --font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Utilidades de texto ---------------------------------------------------- */
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section {
  padding: 96px 0;
}
.section--soft { background: var(--bg-soft); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-500);
  background: var(--bg-softer);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.5px;
}
.section-head p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 17px;
}

/* Botões ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 100px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 8px 22px rgba(30, 86, 214, .35);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(30, 86, 214, .45); }
.btn-light {
  background: #fff;
  color: var(--navy-700);
  box-shadow: var(--shadow-sm);
}
.btn-outline {
  background: transparent;
  border-color: var(--blue-500);
  color: var(--blue-500);
}
.btn-outline:hover { background: var(--blue-500); color: #fff; }
.btn-ghost-light {
  background: rgba(255,255,255,.12);
  color: #fff;
  border-color: rgba(255,255,255,.35);
}
.btn-ghost-light:hover { background: rgba(255,255,255,.22); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: all .3s ease;
  padding: 16px 0;
}
.header.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand img {
  height: 54px;
  width: auto;
  transition: height .3s ease, opacity .3s ease;
}
.header.scrolled .brand img { height: 46px; }

/* Duas variantes sobrepostas: negativa no topo (hero escuro),
   colorida quando o header ganha fundo branco ao rolar. */
.brand__cor { position: absolute; top: 0; left: 0; opacity: 0; }
.header.scrolled .brand__neg { opacity: 0; }
.header.scrolled .brand__cor { opacity: 1; }

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav a {
  font-weight: 500;
  font-size: 15px;
  color: #fff;
  padding: 8px 16px;
  border-radius: 100px;
  transition: background .2s, color .2s;
}
.header.scrolled .nav a { color: var(--ink); }
.nav a:hover { background: rgba(255,255,255,.15); }
.header.scrolled .nav a:hover { background: var(--bg-softer); color: var(--blue-500); }

.header__cta { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 26px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: .3s;
}
.header.scrolled .nav-toggle span { background: var(--ink); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  background: var(--grad-hero);
  color: #fff;
  padding: 170px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(88,220,245,.25), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(47,116,240,.35), transparent 45%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: center;
  gap: 48px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero__badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan-300); box-shadow: 0 0 12px var(--cyan-300); }
.hero h1 {
  font-size: clamp(36px, 5.2vw, 60px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -1px;
}
.hero h1 .hl {
  background: linear-gradient(90deg, var(--cyan-300), #fff);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p.lead {
  margin-top: 22px;
  font-size: 18px;
  color: rgba(255,255,255,.85);
  max-width: 520px;
}
.hero__actions {
  margin-top: 36px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero__stats {
  margin-top: 52px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero__stats .stat strong {
  display: block;
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
}
.hero__stats .stat span {
  font-size: 14px;
  color: rgba(255,255,255,.7);
}

/* Card flutuante do hero */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero__visual .glow {
  position: absolute;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(88,220,245,.35), transparent 60%);
  filter: blur(20px);
  border-radius: 50%;
}
.hero__logo-orb {
  position: relative;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.18);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  animation: float 6s ease-in-out infinite;
}
.hero__logo-orb img { width: 74%; filter: drop-shadow(0 20px 40px rgba(0,0,0,.35)); }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-16px)} }

.hero__chip {
  position: absolute;
  background: rgba(255,255,255,.95);
  color: var(--ink);
  padding: 12px 18px;
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero__chip i { font-size: 20px; }
.hero__chip--1 { top: 6%; left: -6%; animation: float 5s ease-in-out infinite; }
.hero__chip--2 { bottom: 8%; right: -8%; animation: float 7s ease-in-out infinite .5s; }

.hero__wave {
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  line-height: 0;
}
.hero__wave svg { width: 100%; height: 80px; }

/* ==========================================================================
   CATEGORIAS
   ========================================================================== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.cat-card {
  position: relative;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.cat-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.cat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: var(--grad-brand);
}
.cat-card .ic {
  width: 66px; height: 66px;
  border-radius: 18px;
  background: var(--bg-softer);
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
  margin-bottom: 22px;
  color: var(--blue-500);
}
.cat-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.cat-card p { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.cat-card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.cat-card .tags span {
  font-size: 12px; font-weight: 500;
  background: var(--bg-soft);
  color: var(--navy-700);
  padding: 5px 12px; border-radius: 100px;
}
.cat-card .more {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; color: var(--blue-500);
}
.cat-card .more:hover { gap: 10px; }

/* ==========================================================================
   CURSOS
   ========================================================================== */
.filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 44px;
}
.filter-bar button {
  font-family: var(--font);
  font-weight: 500;
  font-size: 15px;
  padding: 10px 22px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  transition: all .2s;
}
.filter-bar button:hover { border-color: var(--blue-400); color: var(--blue-500); }
.filter-bar button.active {
  background: var(--grad-brand);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(30,86,214,.3);
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}
.course-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.course-card__media {
  position: relative;
  height: 150px;
  background: var(--grad-hero);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
}
.course-card__media .emoji { font-size: 48px; filter: drop-shadow(0 6px 12px rgba(0,0,0,.3)); }
.course-card__badge {
  position: absolute; top: 14px; left: 14px;
  background: rgba(255,255,255,.95);
  color: var(--navy-700);
  font-size: 12px; font-weight: 600;
  padding: 5px 12px; border-radius: 100px;
}
.course-card__body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.course-card__body h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.course-card__body p { color: var(--muted); font-size: 14px; margin-bottom: 16px; flex: 1; }
.course-card__meta {
  display: flex; align-items: center; gap: 14px;
  font-size: 13px; color: var(--muted);
  margin-bottom: 18px;
}
.course-card__meta span { display: inline-flex; align-items: center; gap: 5px; }
.course-card__foot {
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.course-card__price small { display: block; font-size: 12px; color: var(--muted); }
.course-card__price strong { font-size: 22px; color: var(--navy-700); }
.course-card__price strong span { font-size: 13px; font-weight: 500; color: var(--muted); }

.empty {
  grid-column: 1/-1;
  text-align: center;
  color: var(--muted);
  padding: 40px;
}

/* ==========================================================================
   DIFERENCIAIS
   ========================================================================== */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feat {
  text-align: center;
  padding: 34px 22px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .3s;
}
.feat:hover { transform: translateY(-6px); }
.feat .ic {
  width: 62px; height: 62px; margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--grad-brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: #fff;
}
.feat h4 { font-size: 17px; margin-bottom: 8px; }
.feat p { font-size: 14px; color: var(--muted); }

/* ==========================================================================
   CTA FAIXA
   ========================================================================== */
.cta-band {
  position: relative;
  background: var(--grad-hero);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px;
  overflow: hidden;
  text-align: center;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(88,220,245,.3), transparent 50%);
}
.cta-band h2 { position: relative; font-size: clamp(26px, 3.5vw, 38px); font-weight: 700; }
.cta-band p { position: relative; margin: 14px auto 30px; max-width: 560px; color: rgba(255,255,255,.85); }
.cta-band .btn { position: relative; }

/* ==========================================================================
   DEPOIMENTOS
   ========================================================================== */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.testi {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}
.testi .stars { color: #ffb400; margin-bottom: 14px; }
.testi p { font-size: 15px; color: var(--ink); margin-bottom: 22px; }
.testi .who { display: flex; align-items: center; gap: 12px; }
.testi .who .av {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad-brand); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.testi .who strong { display: block; font-size: 15px; }
.testi .who span { font-size: 13px; color: var(--muted); }

/* ==========================================================================
   CONTATO
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.contact-info h2 { font-size: clamp(26px,3.5vw,38px); font-weight:700; margin-bottom: 16px; }
.contact-info p { color: var(--muted); margin-bottom: 30px; }
.contact-info .line {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 20px;
}
.contact-info .line .ic {
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--bg-softer); color: var(--blue-500);
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  flex-shrink: 0;
}
.contact-info .line strong { display: block; font-size: 15px; }
.contact-info .line span { font-size: 14px; color: var(--muted); }

.contact-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 15px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-soft);
  transition: border .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-400);
  box-shadow: 0 0 0 4px rgba(47,116,240,.12);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 110px; }
.form-alert {
  padding: 14px 16px; border-radius: 12px; margin-bottom: 18px; font-size: 14px; font-weight: 500;
}
.form-alert.ok { background: #e6f9ef; color: #0f7a44; }
.form-alert.err { background: #fdecec; color: #c0392b; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--navy-900);
  color: rgba(255,255,255,.75);
  padding: 72px 0 30px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer__brand img { height: 56px; margin-bottom: 18px; }
.footer__brand p { font-size: 14px; max-width: 300px; }
.footer h5 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 14px; transition: color .2s; }
.footer ul li a:hover { color: var(--cyan-300); }
.footer__social { display: flex; gap: 12px; margin-top: 20px; }
.footer__social a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff;
  transition: background .2s, transform .2s;
}
.footer__social a:hover { background: var(--blue-500); transform: translateY(-3px); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 26px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px;
}

/* Botão flutuante WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 26px; right: 26px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
  box-shadow: 0 10px 26px rgba(37,211,102,.45);
  z-index: 900;
  transition: transform .2s;
}
.whatsapp-float:hover { transform: scale(1.08); }

/* Animações de entrada */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal].in { opacity: 1; transform: none; }

/* ==========================================================================
   RESPONSIVO
   ========================================================================== */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__visual { display: none; }
  .hero__actions, .hero__stats { justify-content: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
  .cat-grid { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .testi-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav, .header__cta .btn-outline { display: none; }
  .nav-toggle { display: flex; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 100%; left: 16px; right: 16px;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    padding: 14px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    margin-top: 10px;
  }
  .nav.open a { color: var(--ink); text-align: center; }
  .section { padding: 68px 0; }
  .cta-band { padding: 40px 24px; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { justify-content: center; text-align: center; }
}