:root {
  --bg-primary: #0f1014;
  --bg-secondary: #1a1d24;
  --bg-card: #1e222d;
  --bg-input: #2a2e39;
  --border: #2a2e39;
  --text-primary: #d1d4dc;
  --text-secondary: #787b86;
  --accent: #7c3aed;
  --accent-light: #a78bfa;
  --accent-glow: rgba(124, 58, 237, 0.3);
  --success: #4ade80;
  --error: #ef4444;
  --warning: #f59e0b;
  --radius: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 16, 20, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 56px;
}

.brand-name {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

.brand-tm {
  font-size: 10px;
  color: var(--accent);
  vertical-align: super;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--accent-light);
}

/* ── Hero ── */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, rgba(124, 58, 237, 0.08) 0%, transparent 100%);
}

.hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.pro-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 14px;
  padding: 3px 12px;
  border-radius: 6px;
  vertical-align: middle;
  margin-left: 8px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--accent-light);
  margin-bottom: 16px;
  font-weight: 500;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border: none;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: #fff;
}

/* ── Sections ── */
section {
  padding: 80px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 48px;
}

/* ── Features ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Plans ── */
.plans {
  background: var(--bg-secondary);
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}

.plan-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.plan-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 24px var(--accent-glow);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 12px;
  white-space: nowrap;
}

.plan-name {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
}

.plan-price {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-light);
  margin-bottom: 4px;
}

.plan-period {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.plan-features {
  list-style: none;
  margin-bottom: 24px;
  text-align: left;
}

.plan-features li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 0;
  position: relative;
  padding-left: 20px;
}

.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.plan-card .btn {
  width: 100%;
}

/* ── Feedback ── */
.feedback-form {
  max-width: 520px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  font-size: 15px;
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.feedback-status {
  max-width: 520px;
  margin: 16px auto 0;
  text-align: center;
  font-size: 14px;
}

.feedback-status.success {
  color: var(--success);
}

.feedback-status.error {
  color: var(--error);
}

/* ── How It Works ── */
.how-it-works {
  background: var(--bg-secondary);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Download ── */
.download-content {
  display: flex;
  justify-content: center;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  max-width: 400px;
  width: 100%;
}

.download-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.download-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.download-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.download-note {
  margin-top: 16px;
  padding: 12px;
  background: rgba(124, 58, 237, 0.1);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--accent-light);
}

/* ── FAQ ── */
.faq-list {
  max-width: 640px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  user-select: none;
  transition: background 0.2s;
}

.faq-question:hover {
  background: rgba(124, 58, 237, 0.05);
}

.faq-arrow {
  font-size: 10px;
  color: var(--text-secondary);
  transition: transform 0.2s;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s, padding 0.3s;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 20px 16px;
}

.faq-answer p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Contact (removed, manter por compatibilidade) ── */

/* ── Toast ── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

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

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-copyright p {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-size: 13px;
  color: var(--text-primary);
  z-index: 200;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--error); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero h1 { font-size: 28px; }
  .hero-subtitle { font-size: 16px; }
  .plans-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .section-title { font-size: 22px; }
}