:root {
  --bg-main: #020617;
  --bg-alt: #0b1120;
  --bg-card: #020617;
  --purple: #8b5cf6;
  --purple-strong: #7c3aed;
  --green-xp: #22c55e;
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --radius-lg: 22px;
  --radius-md: 14px;
}

/* RESET */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: radial-gradient(circle at top, #111827 0, #020617 55%);
  color: var(--text-main);
  font-family: "Nunito", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* HELPERS */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: #030712;
}

.section-title {
  font-family: "Baloo 2", system-ui;
  font-size: 2.3rem;
  text-align: center;
  margin: 0 0 32px;
  color: #e5e7eb;
}

.section-subtitle {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--text-muted);
}

/* NAVBAR */

.navbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(2, 6, 23, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Baloo 2", system-ui;
  letter-spacing: 0.04em;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 0, #fff 0, #a855f7 40%, #4c1d95 100%);
  display: grid;
  place-items: center;
  color: #020617;
  font-size: 0.9rem;
  font-weight: 700;
}

.logo-text {
  color: var(--purple);
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--purple);
  transition: width 0.18s ease;
}

.nav-links a:hover {
  color: #f9fafb;
}

.nav-links a:hover::after {
  width: 100%;
}

/* BUTTONS */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 11px 24px;
  border: none;
  cursor: pointer;
  font-family: "Baloo 2", system-ui;
  font-size: 1rem;
  text-decoration: none;
  transition:
    transform 0.12s ease,
    box-shadow 0.12s ease,
    background 0.12s ease,
    color 0.12s ease,
    border-color 0.12s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--purple-strong));
  color: #f9fafb;
  box-shadow: 0 18px 40px rgba(139, 92, 246, 0.7);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 50px rgba(139, 92, 246, 0.9);
}

.btn-ghost {
  border: 2px solid rgba(148, 163, 184, 0.7);
  background: transparent;
  color: #e5e7eb;
}

.btn-ghost:hover {
  border-color: var(--purple);
  background: rgba(88, 28, 135, 0.35);
}

.btn-full {
  width: 100%;
}

/* HERO */

.hero {
  padding: 90px 0 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 56px;
  align-items: center;
}

.hero-copy h1 {
  font-family: "Baloo 2", system-ui;
  font-size: 3rem;
  line-height: 1.1;
  margin: 0 0 16px;
  color: #f9fafb;
}

.hero-subtitle {
  margin: 0 0 18px;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
}

.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  color: #e5e7eb;
  font-size: 0.96rem;
}

.hero-bullets li + li {
  margin-top: 3px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.hero-note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* GLOW CARD */

.glow-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid #1f2937;
  box-shadow:
    0 18px 40px rgba(15, 23, 42, 0.85),
    0 0 18px rgba(124, 58, 237, 0.4);
  position: relative;
}

.glow-card::after {
  content: "";
  position: absolute;
  left: 16%;
  right: 16%;
  bottom: -18px;
  height: 14px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.8), transparent 60%);
  opacity: 0.85;
  filter: blur(3px);
  pointer-events: none;
}

/* HERO MOCKUP */

.hero-mockup {
  padding: 18px 16px 16px;
}

.mockup-img {
  width: 100%;
  border-radius: 16px;
  display: block;
  margin-bottom: 12px;
}

.mockup-chat {
  background: #020617;
  border-radius: 14px;
  padding: 10px 10px 12px;
  border: 1px solid #111827;
}

.chat-line {
  font-size: 0.86rem;
  padding: 7px 9px;
  border-radius: 12px;
  margin-bottom: 6px;
}

.chat-line.user {
  background: #111827;
}

.chat-line.ai {
  background: rgba(55, 48, 163, 0.9);
}

.chat-line.ai strong {
  color: #f9fafb;
}

.chat-line.ai .tag {
  display: inline-block;
  margin-top: 3px;
  font-size: 0.72rem;
  color: #e5e7eb;
  opacity: 0.9;
}

.chat-line.xp {
  background: rgba(22, 163, 74, 0.2);
  border: 1px solid rgba(22, 163, 74, 0.7);
  color: #bbf7d0;
}

/* TUTORIAL */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.step {
  padding: 22px 20px 24px;
  text-align: left;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: rgba(124, 58, 237, 0.3);
  color: #f9fafb;
  font-family: "Baloo 2", system-ui;
  margin-bottom: 10px;
}

.step h3 {
  margin: 0 0 6px;
  font-family: "Baloo 2", system-ui;
  font-size: 1.1rem;
}

.step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* FEATURES */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.feature-card {
  padding: 20px 18px 22px;
  font-size: 0.96rem;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-family: "Baloo 2", system-ui;
  font-size: 1.05rem;
  color: var(--purple);
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
}

/* PRICING */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.pricing-card {
  padding: 24px 22px 26px;
}

.pricing-card h3 {
  margin: 0 0 6px;
  font-family: "Baloo 2", system-ui;
  font-size: 1.2rem;
}

.price {
  margin: 0 0 14px;
  font-family: "Baloo 2", system-ui;
  font-size: 1.6rem;
  color: #f9fafb;
}

.price span {
  font-family: "Nunito", sans-serif;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.pricing-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.pricing-list li + li {
  margin-top: 4px;
}

.pricing-card-featured {
  border-color: var(--green-xp);
  box-shadow:
    0 18px 40px rgba(22, 163, 74, 0.6),
    0 0 18px rgba(34, 197, 94, 0.55);
}

.pricing-card-featured::after {
  background: radial-gradient(circle, rgba(34, 197, 94, 0.9), transparent 60%);
}

.badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  background: rgba(22, 163, 74, 0.18);
  color: #bbf7d0;
  border: 1px solid rgba(34, 197, 94, 0.7);
}

/* CONTATO */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 26px;
  align-items: flex-start;
}

.contact-form {
  padding: 22px 20px 24px;
}

.form-group {
  margin-bottom: 12px;
}

.contact-form label {
  display: block;
  font-size: 0.86rem;
  margin-bottom: 4px;
  color: #e5e7eb;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #1f2937;
  padding: 9px 10px;
  background: #020617;
  color: #e5e7eb;
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 1px rgba(124, 58, 237, 0.6);
  background: #020617;
}

.contact-form textarea {
  resize: vertical;
}

.contact-note {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.contact-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.info-card {
  padding: 18px 16px 20px;
}

.info-card h3 {
  margin: 0 0 6px;
  font-family: "Baloo 2", system-ui;
}

.info-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* FOOTER */

.footer {
  border-top: 1px solid #111827;
  padding: 18px 0 22px;
  background: #020617;
}

.footer-inner {
  text-align: center;
}

.footer-inner p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* RESPONSIVO */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-grid,
  .pricing-grid,
  .steps-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    text-align: left;
  }

  .hero-cta {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .nav-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero-copy h1 {
    font-size: 2.4rem;
  }

  .section {
    padding: 64px 0;
  }
}


/* 💜 Bloco de correção */
.correcao-exemplo {
  max-width: 420px;
  background: transparent;
  color: #e5e5ff;
  font-size: 0.95rem;
}

.correcao-header {
  background: #181a2a;
  display: inline-block;
  padding: 8px 14px;
  border-radius: 10px;
  margin-bottom: 10px;
  font-weight: 600;
  color: #a5a7ff;
  font-size: 0.9rem;
}

.balão.roxo {
  background: rgba(130, 60, 255, 0.18);
  border: 1px solid #8d55ff;
  padding: 14px 18px;
  margin: 10px 0;
  border-radius: 14px;
  backdrop-filter: blur(5px);
  line-height: 1.45rem;
  box-shadow: 0 0 12px rgba(149, 76, 255, 0.3);
}

.balão strong.highlight {
  color: #d8b8ff;
  font-weight: 700;
}

.xp-gain {
  margin-top: 8px;
  font-size: 0.85rem;
  color: #9c8bff;
}