/* ─── Reset & Base ──────────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a28;
  --surface: #1e1e2e;
  --border: #2a2a3d;
  --text: #e4e4ed;
  --text-muted: #8888a4;
  --accent: #7c3aed;
  --accent-light: #a78bfa;
  --accent-glow: rgba(124, 58, 237, 0.15);
  --gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #a855f7 100%);
  --radius: 12px;
  --radius-lg: 20px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  line-height: 1.2;
}

a {
  color: var(--accent-light);
  text-decoration: none;
}

/* ─── Hero ──────────────────────────────────────────────────────── */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  background:
    radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 60%),
    var(--bg);
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  max-width: 700px;
  margin: 0 auto 20px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
}

.cta-btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--gradient);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.35);
}

/* ─── How It Works ──────────────────────────────────────────────── */
.how {
  padding: 100px 24px;
}

.how h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 60px;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
}

.step {
  flex: 1;
  max-width: 260px;
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color 0.3s, background 0.3s;
}

.step:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.step-arrow {
  display: flex;
  align-items: center;
  color: var(--accent-light);
  font-size: 1.5rem;
  padding-top: 80px;
  opacity: 0.5;
}

/* ─── Sample Output ─────────────────────────────────────────────── */
.sample {
  padding: 100px 24px;
  background: linear-gradient(180deg, var(--bg) 0%, #0d0d15 100%);
}

.sample h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 40px;
  font-size: 1rem;
}

.email-card {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.email-meta {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.email-label {
  color: var(--text-muted);
  margin-right: 8px;
}

.email-subject {
  color: var(--text);
  font-weight: 500;
}

.email-body {
  padding: 24px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.email-body p {
  margin-bottom: 14px;
}

.email-body .sign-off {
  margin-top: 20px;
  margin-bottom: 0;
  font-weight: 600;
}

.email-note {
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(124, 58, 237, 0.04);
}

.email-note span {
  color: #22c55e;
  font-weight: 600;
}

/* ─── Who It's For ──────────────────────────────────────────────── */
.who {
  padding: 100px 24px;
}

.who h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 50px;
}

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

.persona {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color 0.3s;
}

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

.persona-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.persona h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.persona p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ─── Download ──────────────────────────────────────────────────── */
.download {
  padding: 100px 24px;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 100%, var(--accent-glow) 0%, transparent 60%),
    var(--bg);
}

.download h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-big {
  padding: 18px 48px;
  font-size: 1.1rem;
  margin-top: 12px;
}

.install-note {
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: monospace;
}

/* ─── Footer ────────────────────────────────────────────────────── */
footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

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

footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.privacy {
  font-size: 0.75rem !important;
}

/* ─── Responsive ────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step {
    max-width: 100%;
    width: 100%;
  }

  .step-arrow {
    padding-top: 0;
    transform: rotate(90deg);
  }

  .personas {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2rem;
  }
}