/* ==========================================================================
   Variáveis e reset base — compartilhado pela landing page e pelas páginas
   públicas (login, cadastro, checkout). app.css importa este arquivo.
   ========================================================================== */

:root {
  --bg: #0a0a12;
  --bg-alt: #0f0f1a;
  --surface: #14141f;
  --surface-2: #1b1b2a;
  --border: #26263a;
  --text: #f2f2f7;
  --text-dim: #a3a3b8;
  --text-faint: #6c6c85;
  --accent: #8b5cf6;
  --accent-2: #ec4899;
  --accent-3: #22d3ee;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --gradient-text: linear-gradient(135deg, #a78bfa 0%, #f472b6 50%, #22d3ee 100%);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 60px -15px rgba(139, 92, 246, 0.5);
  --container: 1160px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

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

.text-gradient {
  background: var(--gradient-text);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(236, 72, 153, 0.6);
}

.btn-primary:hover {
  box-shadow: 0 12px 32px -8px rgba(236, 72, 153, 0.8);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  background: rgba(139, 92, 246, 0.08);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 17px;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(10, 10, 18, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 18px;
  transition: padding 0.3s ease;
}

.site-header.is-scrolled .container {
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: var(--shadow-glow);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-desktop a {
  font-size: 14px;
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-desktop a:hover {
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg);
  padding: 100px 24px 40px;
  flex-direction: column;
  gap: 8px;
}

.nav-mobile.is-open {
  display: flex;
}

.nav-mobile a {
  padding: 16px 4px;
  font-size: 20px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

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

.hero {
  position: relative;
  padding: 170px 0 110px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  z-index: -1;
  animation: float-blob 16s ease-in-out infinite;
}

.hero-glow.one {
  background: var(--accent);
  top: -250px;
  left: -150px;
}

.hero-glow.two {
  background: var(--accent-2);
  top: -100px;
  right: -200px;
  animation-delay: -8s;
}

@keyframes float-blob {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, 60px) scale(1.1); }
  66% { transform: translate(-30px, 20px) scale(0.95); }
}

.hero-inner {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 600;
  animation: fade-up 0.7s ease both;
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 24px 0 20px;
  animation: fade-up 0.7s ease 0.1s both;
}

.hero .lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 auto;
  animation: fade-up 0.7s ease 0.2s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
  animation: fade-up 0.7s ease 0.3s both;
}

.hero-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-faint);
  animation: fade-up 0.7s ease 0.35s both;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 620px;
  margin: 64px auto 0;
  animation: fade-up 0.7s ease 0.4s both;
}

.hero-stats .stat {
  text-align: center;
}

.hero-stats .stat strong {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
}

.hero-stats .stat span {
  font-size: 13px;
  color: var(--text-faint);
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.is-visible > * {
  animation: fade-up 0.6s ease both;
}

.reveal-stagger.is-visible > *:nth-child(1) { animation-delay: 0s; }
.reveal-stagger.is-visible > *:nth-child(2) { animation-delay: 0.08s; }
.reveal-stagger.is-visible > *:nth-child(3) { animation-delay: 0.16s; }
.reveal-stagger.is-visible > *:nth-child(4) { animation-delay: 0.24s; }
.reveal-stagger.is-visible > *:nth-child(5) { animation-delay: 0.32s; }
.reveal-stagger.is-visible > *:nth-child(6) { animation-delay: 0.4s; }

/* ==========================================================================
   Sections
   ========================================================================== */

section {
  padding: 100px 0;
}

.section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-3);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-dim);
  font-size: 1.05rem;
}

/* Benefícios */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.benefit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-6px);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: var(--shadow);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.benefit-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.benefit-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Currículo / módulos */

.curriculum {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.curriculum-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.curriculum-item summary {
  list-style: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 700;
  gap: 16px;
}

.curriculum-item summary::-webkit-details-marker {
  display: none;
}

.curriculum-item summary .chev {
  transition: transform 0.25s ease;
  color: var(--text-faint);
  flex-shrink: 0;
}

.curriculum-item[open] summary .chev {
  transform: rotate(180deg);
}

.curriculum-item .module-meta {
  font-size: 13px;
  color: var(--text-faint);
  font-weight: 500;
}

.curriculum-lessons {
  padding: 0 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.curriculum-lesson {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-size: 14px;
  color: var(--text-dim);
}

.curriculum-lesson .lesson-duration {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-faint);
}

/* Depoimentos */

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.testimonial-stars {
  color: var(--warning);
  letter-spacing: 2px;
}

.testimonial-card p.quote {
  color: var(--text-dim);
  font-size: 0.95rem;
}

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

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
}

.testimonial-author span {
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* Preço */

.pricing-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid rgba(139, 92, 246, 0.4);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-glow);
}

.pricing-card .ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  padding: 6px 20px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-original {
  color: var(--text-faint);
  text-decoration: line-through;
  font-size: 1rem;
}

.price-current {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 6px 0 4px;
}

.price-installments {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.price-features {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-dim);
}

.price-features li .check {
  color: var(--success);
  font-weight: 800;
  flex-shrink: 0;
}

.price-guarantee {
  margin-top: 20px;
  font-size: 12.5px;
  color: var(--text-faint);
}

/* FAQ */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 24px;
}

.faq-item summary {
  list-style: none;
  padding: 18px 0;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .chev {
  transition: transform 0.25s ease;
  color: var(--text-faint);
  flex-shrink: 0;
}

.faq-item[open] summary .chev {
  transform: rotate(45deg);
}

.faq-item p {
  padding-bottom: 20px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* CTA final */

.cta-final {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 64px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-final::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.25), transparent 60%);
  pointer-events: none;
}

.cta-final h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-final p {
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto 32px;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  color: var(--text-faint);
  font-size: 13px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a:hover {
  color: var(--text-dim);
}

/* ==========================================================================
   Cartões de "modo demonstração" (avisos visuais reutilizáveis)
   ========================================================================== */

.demo-banner {
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fcd34d;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

/* ==========================================================================
   Formulários (login, cadastro, checkout)
   ========================================================================== */

.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
}

.auth-visual {
  position: relative;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 40px;
}

.auth-visual .hero-glow {
  opacity: 0.5;
}

.auth-visual-content {
  position: relative;
  z-index: 1;
  max-width: 420px;
}

.auth-visual-content h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.auth-visual-content p {
  color: var(--text-dim);
}

.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

.auth-card .brand {
  margin-bottom: 32px;
}

.auth-card h1 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.auth-card .sub {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dim);
}

.field input, .field select, .field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text);
  font-size: 14.5px;
  font-family: var(--font);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.field-hint {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 6px;
}

.form-footer-link {
  text-align: center;
  margin-top: 24px;
  font-size: 13.5px;
  color: var(--text-dim);
}

.form-footer-link a {
  color: var(--accent-3);
  font-weight: 600;
}

.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  margin-bottom: 20px;
  border: 1px solid transparent;
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.35);
  color: #86efac;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

.alert-info {
  background: rgba(34, 211, 238, 0.1);
  border-color: rgba(34, 211, 238, 0.35);
  color: #67e8f9;
}

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

@media (max-width: 960px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .benefits-grid, .testimonials-grid { grid-template-columns: 1fr 1fr; }
  .auth-shell { grid-template-columns: 1fr; }
  .auth-visual { display: none; }
}

@media (max-width: 640px) {
  section { padding: 70px 0; }
  .hero { padding: 130px 0 70px; }
  .hero-stats { grid-template-columns: 1fr; gap: 20px; }
  .benefits-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .pricing-card { padding: 32px 22px; }
  .cta-final { padding: 44px 22px; }
  .footer-grid { flex-direction: column; text-align: center; }
}