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

* {
  margin: 0;
  padding: 0;
}

:root {
  --navy: #0A1628;
  --navy-mid: #1E3A5F;
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --black: #0A0A0A;
  --gray-mid: #6B7280;
  --gray-light: #E5E7EB;
  --blue: #2563EB;
  --blue-dark: #1D4ED8;
  --green: #10B981;
  --green-bg: #D1FAE5;
  --text-soft: #374151;
  --red: #EF4444;
  --shadow-soft: 0 20px 50px rgba(10, 22, 40, 0.10);
}

html {
  scroll-behavior: auto;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--black);
  background: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--gray-light);
  animation: navIn 0.5s ease both;
  backdrop-filter: blur(16px);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.site-nav.scrolled {
  border-color: transparent;
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.08);
}

.nav-inner {
  width: min(1120px, calc(100% - 48px));
  height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.wordmark {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
  white-space: nowrap;
}

.wordmark span {
  color: var(--green);
}

.nav-demo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 20px;
  border: 1px solid var(--gray-light);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  font-size: 15px;
  font-weight: 600;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-demo:hover {
  border-color: #CBD5E1;
  box-shadow: 0 8px 24px rgba(10, 22, 40, 0.08);
}

.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
  gap: 64px;
  align-items: center;
}

.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  margin-bottom: 22px;
  border: 1px solid rgba(16, 185, 129, 0.28);
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.10);
  color: #D1FAE5;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.live-pill span,
.phone-status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 1.4s ease-in-out infinite;
}

.hero-headline {
  font-size: clamp(36px, 5.5vw, 60px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--white);
}

.hero-subheadline {
  max-width: 620px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.70);
  font-size: 19px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-hero {
  padding: 12px 24px;
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  font-size: 15px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
}

.hero-link {
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  text-underline-offset: 5px;
}

.hero-link:hover {
  text-decoration: underline;
}

.trust-line {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.50);
  font-size: 14px;
}

.phone-card {
  border-radius: 20px;
  padding: 24px;
}

.hero-phone {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
}

.phone-status {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
}

.sms-thread {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  max-width: 84%;
  padding: 12px 14px;
  border-radius: 17px;
  font-size: 14px;
  line-height: 1.42;
  opacity: 0;
  transform: translateY(8px);
}

.msg.visible {
  animation: msgIn 0.35s ease forwards;
}

.msg.static {
  opacity: 1;
  transform: none;
}

.msg.customer {
  align-self: flex-start;
  border-bottom-left-radius: 5px;
  background: #EEF2F7;
  color: var(--black);
}

.hero-phone .msg.customer {
  background: rgba(255, 255, 255, 0.92);
}

.msg.bot {
  align-self: flex-end;
  border-bottom-right-radius: 5px;
  background: var(--blue);
  color: var(--white);
}

.msg.bot.green {
  background: var(--green);
}

.reply-note {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
  text-align: right;
}

.stats-bar {
  padding: 60px 0;
  background: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
  text-align: center;
}

.stat {
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 24px;
}

.stat + .stat {
  border-left: 1px solid var(--gray-light);
}

.stat-number {
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--blue);
  line-height: 1;
}

.stat p {
  margin-top: 12px;
  color: var(--gray-mid);
  font-size: 16px;
  line-height: 1.45;
}

.stats-kicker {
  margin-top: 28px;
  color: var(--text-soft);
  font-size: 17px;
  font-style: italic;
  text-align: center;
}

.section-pad {
  padding: 96px 0;
}

.problem,
.about {
  background: var(--off-white);
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 14px;
}

.section-headline {
  max-width: 780px;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--black);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 42px;
}

.scenario-card {
  border: 1px solid var(--gray-light);
  border-left: 4px solid var(--red);
  border-radius: 16px;
  background: var(--white);
  padding: 28px;
  box-shadow: 0 12px 32px rgba(10, 22, 40, 0.04);
}

.scenario-icon,
.step-icon,
.vertical-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border-radius: 12px;
  background: var(--off-white);
  font-size: 21px;
}

.scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.35;
}

.scenario-card p {
  margin-top: 10px;
  color: var(--gray-mid);
  font-size: 15px;
  line-height: 1.6;
}

.problem-close {
  margin-top: 40px;
  color: var(--black);
  font-size: 20px;
  font-weight: 700;
  text-align: center;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr 42px 1fr 42px 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 42px;
}

.step-card {
  min-height: 260px;
  padding: 30px;
  border: 1px solid var(--gray-light);
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.step-arrow {
  color: var(--blue);
  font-size: 30px;
  font-weight: 700;
  text-align: center;
}

.step-card h3,
.vertical-card h3,
.price-card h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.step-card p {
  margin-top: 10px;
  color: var(--gray-mid);
  font-size: 15px;
  line-height: 1.65;
}

.dark-section {
  background: var(--navy);
}

.dark-headline {
  color: var(--white);
}

.vertical-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 42px;
}

.vertical-card {
  min-height: 278px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.vertical-card:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.20);
  transform: translateY(-2px);
}

.vertical-icon {
  background: rgba(255, 255, 255, 0.10);
}

.vertical-card p {
  margin: 10px 0 22px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
  line-height: 1.65;
}

.vertical-card a,
.vertical-card .coming {
  display: inline-flex;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
}

.vertical-card .coming {
  color: rgba(255, 255, 255, 0.42);
}

.pricing {
  background: var(--white);
}

.pricing .section-headline {
  margin: 0 auto;
  text-align: center;
}

.pricing .eyebrow {
  text-align: center;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  max-width: 720px;
  margin: 42px auto 0;
}

.price-card {
  position: relative;
  padding: 32px;
  border: 1px solid var(--gray-light);
  border-radius: 16px;
  background: var(--white);
  box-shadow: 0 16px 42px rgba(10, 22, 40, 0.06);
}

.price-card.featured {
  border: 2px solid var(--blue);
  background: #EFF6FF;
}

.price-badge {
  position: absolute;
  top: -14px;
  left: 26px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
}

.price {
  margin-top: 14px;
  color: var(--black);
  font-size: clamp(34px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.price span {
  color: var(--gray-mid);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.price-card > p {
  margin-top: 18px;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.65;
}

.price-card ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
  list-style: none;
}

.price-card li {
  position: relative;
  padding-left: 26px;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.45;
}

.price-card li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 800;
}

.pricing-kicker {
  margin-top: 30px;
  color: var(--gray-mid);
  font-size: 18px;
  font-style: italic;
  text-align: center;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.88fr);
  gap: 72px;
  align-items: center;
}

.about-copy > p:not(.eyebrow) {
  margin-top: 18px;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.btn-primary {
  margin-top: 28px;
  padding: 12px 24px;
  border-radius: 8px;
  background: var(--blue);
  color: var(--white);
  font-size: 15px;
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.trust-signals {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 22px;
  color: var(--gray-mid);
  font-size: 14px;
}

.light-phone {
  border: 1px solid var(--gray-light);
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.phone-status.light {
  color: var(--black);
}

.reply-note.light {
  color: var(--gray-mid);
}

.final-cta {
  padding: 120px 0;
  background: var(--navy);
  color: var(--white);
  text-align: center;
}

.final-cta h2 {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.final-cta p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.70);
  font-size: 19px;
}

.btn-final {
  margin-top: 34px;
  padding: 14px 32px;
  border-radius: 10px;
  background: var(--white);
  color: var(--navy);
  font-size: 16px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
}

.final-note {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.50);
  font-size: 14px;
}

.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--gray-light);
  background: var(--white);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
}

.footer-inner p {
  color: var(--gray-mid);
  font-size: 13px;
}

.footer-inner p:last-child {
  text-align: right;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

@keyframes msgIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes navIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .msg {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 900px) {
  .hero-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero-phone {
    max-width: 440px;
  }

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

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

  .step-arrow {
    display: none;
  }

  .step-card {
    min-height: auto;
  }
}

@media (max-width: 768px) {
  .container,
  .nav-inner {
    width: min(100% - 32px, 1120px);
  }

  .hero {
    padding: 76px 0 68px;
  }

  .hero-phone {
    display: none;
  }

  .section-pad {
    padding: 72px 0;
  }

  .stats-grid,
  .vertical-grid {
    grid-template-columns: 1fr;
  }

  .stat {
    min-height: 116px;
  }

  .stat + .stat {
    border-left: 0;
    border-top: 1px solid var(--gray-light);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .footer-inner p:last-child {
    text-align: center;
  }
}

@media (max-width: 520px) {
  .nav-inner {
    height: 62px;
  }

  .nav-demo {
    min-height: 38px;
    padding: 9px 14px;
    font-size: 14px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 14px;
  }

  .btn-hero,
  .btn-final,
  .btn-primary {
    width: 100%;
  }

  .trust-line {
    line-height: 1.8;
  }

  .scenario-card,
  .step-card,
  .vertical-card,
  .price-card,
  .phone-card {
    padding: 24px;
  }
}