/* Basic reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  color: #101827;
  background: #050816;
  -webkit-font-smoothing: antialiased;
}

/* Layout helpers */
main {
  padding-top: 72px;
}

.section {
  padding: 72px 16px;
}

.section-alt {
  background: radial-gradient(circle at top left, #111827, #020617 40%);
}

.section-inner {
  max-width: 1040px;
  margin: 0 auto;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(2, 6, 23, 0.92);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
  backdrop-filter: blur(14px);
}

.nav-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: white;
}

.brand-text {
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #e5e7eb;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
}

.nav-links a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.nav-links a:hover {
  color: #e5e7eb;
}

.nav-cta {
  padding: 6px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: white !important;
}

/* Hero */
.hero {
  padding: 80px 16px 72px;
  background: radial-gradient(circle at top left, #1f2937, #020617 55%);
}

.hero-inner {
  max-width: 1040px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #a5b4fc;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: 32px;
  line-height: 1.1;
  margin-bottom: 14px;
  color: #f9fafb;
}

.hero-sub {
  font-size: 15px;
  color: #e5e7eb;
  max-width: 480px;
  margin-bottom: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: white;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.8);
}

.btn-ghost {
  border-color: rgba(148, 163, 184, 0.5);
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.7);
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: #9ca3af;
}

/* Phone mock */
.hero-card {
  display: flex;
  justify-content: center;
}

.phone-mock {
  width: 280px;
  border-radius: 30px;
  padding: 16px;
  background: radial-gradient(circle at top, #111827, #020617 65%);
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow:
    0 20px 40px rgba(15, 23, 42, 0.9),
    0 0 0 1px rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.phone-status {
  display: flex;
  gap: 6px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #4b5563;
}

.dot.green {
  background: #22c55e;
}
.dot.yellow {
  background: #eab308;
}
.dot.red {
  background: #ef4444;
}

.phone-header h2 {
  font-size: 18px;
  margin-top: 4px;
}

.phone-sub {
  font-size: 11px;
  color: #9ca3af;
}

.phone-block-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.phone-block {
  padding: 8px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.phone-block .label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9ca3af;
}

.phone-block .value {
  font-size: 13px;
  font-weight: 500;
  margin-top: 4px;
  word-break: break-all;
}

.phone-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  font-size: 11px;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.phone-panel {
  border-radius: 14px;
  padding: 10px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(8, 47, 73, 0.5));
  border: 1px solid rgba(129, 140, 248, 0.6);
}

.phone-panel h3 {
  font-size: 14px;
  margin-bottom: 4px;
}

.phone-panel p {
  font-size: 12px;
  color: #d1d5db;
  margin-bottom: 8px;
}

.phone-btn {
  width: 100%;
  border-radius: 999px;
  padding: 7px;
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: white;
}

.phone-footer {
  margin-top: 4px;
  font-size: 10px;
  text-align: center;
  color: #6b7280;
}

/* Sections */
.section h2 {
  font-size: 24px;
  color: #f9fafb;
  margin-bottom: 10px;
}

.section-sub {
  font-size: 14px;
  color: #d1d5db;
  max-width: 540px;
  margin-bottom: 24px;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.step {
  border-radius: 16px;
  padding: 16px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(31, 41, 55, 0.9);
}

.step-number {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.25);
  border: 1px solid rgba(129, 140, 248, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: #e5e7eb;
  margin-bottom: 10px;
}

.step h3 {
  font-size: 14px;
  color: #e5e7eb;
  margin-bottom: 6px;
}

.step p {
  font-size: 13px;
  color: #9ca3af;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  border-radius: 16px;
  padding: 18px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.9);
}

.feature-card h3 {
  font-size: 14px;
  color: #e5e7eb;
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 13px;
  color: #9ca3af;
}

/* Benefits */
.benefits-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: 24px;
}

.benefits-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: #e5e7eb;
}

.benefits-note {
  margin-top: 12px;
  font-size: 13px;
  color: #9ca3af;
}

.benefits-card {
  border-radius: 18px;
  padding: 18px;
  background: linear-gradient(145deg, rgba(34, 197, 94, 0.15), rgba(15, 118, 110, 0.28));
  border: 1px solid rgba(45, 212, 191, 0.6);
  color: #ecfdf5;
}

.benefits-card h3 {
  font-size: 15px;
  margin-bottom: 10px;
}

.benefits-card ul {
  list-style: none;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* CTA */
.section-cta {
  background: radial-gradient(circle at top, #111827, #020617 60%);
  border-top: 1px solid rgba(55, 65, 81, 0.8);
}

.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.3fr);
  gap: 24px;
  align-items: center;
}

.cta-copy h2 {
  font-size: 22px;
  color: #f9fafb;
  margin-bottom: 8px;
}

.cta-copy p {
  font-size: 14px;
  color: #d1d5db;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cta-form input {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.8);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  font-size: 14px;
  outline: none;
}

.cta-form button {
  border-radius: 999px;
  padding: 10px 16px;
  border: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: white;
}

.cta-small {
  font-size: 11px;
  color: #9ca3af;
}

/* Footer */
.footer {
  border-top: 1px solid rgba(31, 41, 55, 0.9);
  padding: 18px 16px 28px;
  background: #020617;
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  font-size: 11px;
  color: #6b7280;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.footer-dot {
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

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

  .hero-card {
    order: -1;
    margin-bottom: 12px;
  }

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

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

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

@media (max-width: 640px) {
  .hero {
    padding-top: 72px;
  }

  .hero h1 {
    font-size: 26px;
  }

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

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

  .section {
    padding: 56px 14px;
  }
}