:root {
  --navy-950: #0b1220;
  --navy-900: #0f172a;
  --navy-800: #1e293b;
  --navy-700: #334155;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-50: #eff6ff;
  --green-600: #059669;
  --green-50: #ecfdf5;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.12);
  --container: 1140px;
  --font: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
  --channel-sms: #0284c7;
  --channel-rcs: #7c3aed;
  --channel-wa: #059669;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--white);
  color: var(--navy-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

/* ── Nav ─────────────────────────────────────────────── */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--slate-200);
  backdrop-filter: blur(12px);
}

.landing-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--navy-900);
}

.nav-brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, var(--blue-600), var(--navy-800));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a:not(.btn) {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-500);
  transition: color 0.15s ease;
}

.nav-links a:not(.btn):hover {
  color: var(--navy-900);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.24);
}

.btn-primary:hover {
  background: var(--blue-700);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--white);
  color: var(--navy-800);
  border-color: var(--slate-200);
}

.btn-secondary:hover {
  background: var(--slate-50);
  border-color: var(--slate-400);
}

.btn-lg {
  padding: 0.8125rem 1.5rem;
  font-size: 0.9375rem;
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(3.5rem, 6vw, 4.5rem);
  background:
    linear-gradient(180deg, var(--slate-50) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--slate-200);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 85%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-copy {
  max-width: 34rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--blue-50);
  border: 1px solid rgba(37, 99, 235, 0.12);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--blue-700);
}

.hero-eyebrow-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--green-600);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.125rem, 4.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--navy-900);
}

.hero h1 em {
  font-style: normal;
  color: var(--blue-600);
}

.hero-sub {
  margin: 0 0 2rem;
  font-size: 1.0625rem;
  color: var(--slate-500);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--slate-200);
}

.hero-trust-item strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--navy-900);
}

.hero-trust-item span {
  font-size: 0.8125rem;
  color: var(--slate-500);
}

.hero-panel {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.hero-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.25rem;
  background: var(--navy-900);
  color: var(--white);
}

.hero-panel-title {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-panel-status {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.72);
}

.hero-panel-status::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #34d399;
}

.hero-panel-body {
  padding: 1.25rem;
  display: grid;
  gap: 0.875rem;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.metric-card {
  padding: 0.875rem;
  border-radius: var(--radius-md);
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
}

.metric-card span {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate-500);
  margin-bottom: 0.25rem;
}

.metric-card strong {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--navy-900);
}

.channel-preview {
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-200);
  background: var(--white);
}

.channel-preview-label {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.channel-preview-label--sms { background: #e0f2fe; color: #0369a1; }
.channel-preview-label--rcs { background: #ede9fe; color: #6d28d9; }
.channel-preview-label--wa { background: var(--green-50); color: var(--green-600); }

.channel-preview p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--navy-800);
}

/* ── Sections ────────────────────────────────────────── */
.section {
  padding: clamp(3.5rem, 6vw, 5rem) 0;
}

.section--muted {
  background: var(--slate-50);
  border-block: 1px solid var(--slate-200);
}

.section-header {
  max-width: 40rem;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-header--left {
  margin-inline: 0;
  text-align: left;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-600);
}

.section-title {
  margin: 0 0 0.875rem;
  font-size: clamp(1.625rem, 3vw, 2.125rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--navy-900);
}

.section-sub {
  margin: 0;
  font-size: 1rem;
  color: var(--slate-500);
  line-height: 1.7;
}

.card-grid {
  display: grid;
  gap: 1.25rem;
}

.audience-grid { grid-template-columns: repeat(3, 1fr); }
.steps-grid { grid-template-columns: repeat(3, 1fr); }
.features-grid { grid-template-columns: repeat(4, 1fr); }
.pricing-grid { grid-template-columns: repeat(3, 1fr); max-width: 960px; margin-inline: auto; }

.card {
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.18);
}

.card-icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  background: var(--blue-50);
  color: var(--blue-600);
  font-size: 0.8125rem;
  font-weight: 800;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--slate-500);
  line-height: 1.6;
}

.step-number {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--blue-600);
}

/* ── Split sections ──────────────────────────────────── */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.feature-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--slate-200);
  font-size: 0.9375rem;
  color: var(--slate-500);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
  border-radius: 50%;
  background: var(--green-50);
  color: var(--green-600);
  display: grid;
  place-items: center;
  font-size: 0.6875rem;
  font-weight: 700;
}

.compliance-panel {
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.compliance-panel h3 {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--navy-800);
}

.compliance-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.625rem;
}

.compliance-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.875rem;
  color: var(--slate-500);
  line-height: 1.55;
}

.compliance-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 1px;
  background: var(--blue-600);
}

/* ── Integrations ────────────────────────────────────── */
.integrations-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.integration-chip {
  padding: 0.625rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--white);
  border: 1px solid var(--slate-200);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--navy-800);
}

/* ── Pricing ─────────────────────────────────────────── */
.price-card {
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  border-color: var(--blue-600);
  box-shadow: 0 0 0 1px var(--blue-600), var(--shadow-md);
}

.price-badge {
  position: absolute;
  top: -0.625rem;
  left: 1.5rem;
  padding: 0.2rem 0.625rem;
  border-radius: 4px;
  background: var(--blue-600);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.price-tier {
  margin: 0 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--slate-500);
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--navy-900);
}

.price-period {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--slate-500);
}

.price-card ul {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
  flex: 1;
}

.price-card li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.375rem;
  font-size: 0.875rem;
  color: var(--slate-500);
  border-bottom: 1px solid var(--slate-100);
}

.price-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green-600);
  font-weight: 700;
}

.price-extra {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  color: var(--slate-400);
}

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

/* ── FAQ ─────────────────────────────────────────────── */
.faq-list {
  max-width: 760px;
  margin-inline: auto;
}

.faq-item {
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  background: var(--white);
  overflow: hidden;
}

.faq-item summary {
  padding: 1.125rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy-900);
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  float: right;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--slate-400);
}

.faq-item[open] summary {
  border-bottom: 1px solid var(--slate-200);
  background: var(--slate-50);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  margin: 0;
  padding: 1rem 1.25rem 1.125rem;
  font-size: 0.9375rem;
  color: var(--slate-500);
  line-height: 1.65;
}

/* ── CTA + Footer ────────────────────────────────────── */
.cta-final {
  background: var(--navy-900);
  color: var(--white);
}

.cta-final .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-final-copy h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.cta-final-copy p {
  margin: 0;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.72);
}

.landing-footer {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.72);
  padding: 2.5rem 0;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.15s ease;
}

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

.footer-copy {
  width: 100%;
  margin: 1.5rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.45);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

  .hero-copy {
    max-width: none;
    text-align: center;
  }

  .hero-actions,
  .hero-trust {
    justify-content: center;
  }

  .hero-trust {
    text-align: center;
  }

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

  .section-header--left {
    text-align: center;
    margin-inline: auto;
  }

  .split-section .btn {
    width: 100%;
  }

  .cta-final .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .nav-links a:not(.btn) {
    display: none;
  }

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

  .metric-row {
    grid-template-columns: 1fr;
  }
}