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

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

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', sans-serif;
  color: #0f172a;
  background: radial-gradient(circle at top, #0f172a 0, #020617 45%, #020617 100%);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  padding: 0 1.5rem;
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(
      to bottom,
      rgba(15, 23, 42, 0.95),
      rgba(15, 23, 42, 0.85),
      transparent
    );
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: #e5e7eb;
}

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 10%, #38bdf8, #0ea5e9 40%, #1d4ed8);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.7),
    0 18px 35px rgba(15, 23, 42, 0.9);
}

.logo-text {
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.nav a {
  color: #cbd5f5;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

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

.nav-cta {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: radial-gradient(circle at top left, #22d3ee, #0ea5e9 40%, #1d4ed8);
  color: #0b1120 !important;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.7);
}

.hero {
  padding: 4.5rem 0 4rem;
  color: #e5e7eb;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.8rem;
  color: #38bdf8;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: clamp(2.3rem, 3.3vw, 3rem);
  line-height: 1.05;
  margin: 0 0 1rem;
}

.accent {
  color: #a5b4fc;
}

.hero-subtitle {
  margin: 0 0 1.6rem;
  font-size: 1rem;
  color: #cbd5f5;
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.btn {
  border-radius: 999px;
  border: none;
  font-size: 0.95rem;
  padding: 0.75rem 1.4rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  transition: transform 0.12s ease, box-shadow 0.12s ease,
    background 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #22d3ee, #0ea5e9, #6366f1);
  color: #020617;
  font-weight: 600;
  box-shadow: 0 14px 35px rgba(15, 23, 42, 0.85);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.95);
}

.btn.ghost {
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: #e5e7eb;
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.95), #020617);
}

.btn.ghost:hover {
  background: rgba(15, 23, 42, 0.9);
  transform: translateY(-1px);
}

.btn-full {
  width: 100%;
}

.hero-meta {
  font-size: 0.85rem;
}

.meta-label {
  display: inline-block;
  margin-right: 0.5rem;
  color: #9ca3af;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(148, 163, 184, 0.4);
  margin-right: 0.3rem;
}

.meta-note {
  margin-top: 0.6rem;
  color: #9ca3af;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-mock {
  width: 280px;
  border-radius: 32px;
  padding: 10px;
  background: radial-gradient(circle at 20% 0, #0ea5e9, #1e293b 45%, #020617);
  box-shadow: 0 35px 70px rgba(15, 23, 42, 0.95);
}

.phone-screen {
  background: radial-gradient(circle at top, #020617, #020617 60%, #0b1120);
  border-radius: 26px;
  padding: 0.75rem;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #e5e7eb;
  font-size: 0.75rem;
  margin-bottom: 0.8rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
}

.conversation {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.78rem;
  overflow: hidden;
}

.bubble {
  padding: 0.55rem 0.6rem;
  border-radius: 14px;
  max-width: 100%;
}

.bubble-user {
  align-self: flex-end;
  background: linear-gradient(135deg, #22d3ee, #6366f1);
  color: #020617;
  border-bottom-right-radius: 4px;
}

.bubble-ai {
  align-self: flex-start;
  background: rgba(15, 23, 42, 0.85);
  color: #e5e7eb;
  border-bottom-left-radius: 4px;
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.route-summary {
  margin-top: 0.75rem;
  padding: 0.55rem 0.6rem;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.route-label {
  color: #9ca3af;
  display: block;
  margin-bottom: 0.1rem;
}

.route-value {
  color: #e5e7eb;
  font-weight: 500;
}

.route-btn {
  border-radius: 999px;
  border: none;
  padding: 0.35rem 0.7rem;
  font-size: 0.72rem;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #022c22;
  font-weight: 600;
  cursor: pointer;
}

.section {
  padding: 3.5rem 0;
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), #020617);
  color: #e5e7eb;
}

.section-alt {
  background: radial-gradient(circle at top, #020617, #020617);
}

.section h2 {
  font-size: 1.6rem;
  margin: 0 0 0.6rem;
}

.section-intro {
  margin: 0 0 2rem;
  max-width: 34rem;
  color: #cbd5f5;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.3rem;
}

.step {
  padding: 1.1rem 1rem 1.2rem;
  border-radius: 18px;
  background: radial-gradient(circle at top left, #0f172a, #020617);
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.9);
}

.step-number {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
  background: radial-gradient(circle at top, #22d3ee, #6366f1);
  color: #020617;
  font-weight: 600;
}

.step h3 {
  margin: 0 0 0.3rem;
  font-size: 1rem;
}

.step p {
  margin: 0;
  font-size: 0.9rem;
  color: #cbd5f5;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.3rem;
}

.benefit-card {
  padding: 1.2rem 1.1rem 1.3rem;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.1), #020617);
}

.benefit-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.benefit-card p {
  margin: 0;
  font-size: 0.9rem;
  color: #cbd5f5;
}

.journey-timeline {
  border-left: 1px solid rgba(148, 163, 184, 0.45);
  margin-left: 0.5rem;
  padding-left: 1.5rem;
  display: grid;
  gap: 1.5rem;
}

.journey-item {
  position: relative;
}

.journey-item .dot {
  position: absolute;
  left: -1.9rem;
  top: 0.1rem;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: radial-gradient(circle at top, #22d3ee, #6366f1);
  box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.18);
}

.journey-item h3 {
  margin: 0 0 0.2rem;
}

.journey-item p {
  margin: 0;
  color: #cbd5f5;
  font-size: 0.93rem;
}

.section-signup {
  background: radial-gradient(circle at top left, #0f172a, #020617 55%, #020617);
}

.signup-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.signup-points {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
  color: #cbd5f5;
  font-size: 0.95rem;
}

.signup-points li::before {
  content: '✓';
  display: inline-block;
  margin-right: 0.35rem;
  color: #22c55e;
}

.signup-form {
  padding: 1.4rem 1.3rem 1.5rem;
  border-radius: 18px;
  background: radial-gradient(circle at top left, #0b1120, #020617);
  border: 1px solid rgba(148, 163, 184, 0.6);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.9);
}

.field {
  margin-bottom: 0.9rem;
}

.field label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  color: #e5e7eb;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.55rem 0.6rem;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.85);
  color: #e5e7eb;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease,
    background 0.15s ease;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #6b7280;
}

.field input:focus,
.field textarea:focus {
  border-color: #0ea5e9;
  box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.5);
  background: rgba(15, 23, 42, 0.95);
}

.form-note {
  margin-top: 0.65rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

.form-success {
  margin-top: 0.55rem;
  font-size: 0.85rem;
  color: #4ade80;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.4);
  padding: 1.3rem 0 1.6rem;
  background: #020617;
  color: #9ca3af;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-note strong {
  color: #e5e7eb;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 3.3rem;
  }

  .hero-visual {
    order: -1;
  }

  .steps-grid,
  .benefits-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signup-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .nav {
    display: none;
  }
}

@media (max-width: 640px) {
  .steps-grid,
  .benefits-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-subtitle {
    max-width: none;
  }

  .phone-mock {
    width: 260px;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}