:root {
  --color-background: #f1faff;
  --color-foreground: #0f3c4b;
  --color-muted: #4f6b76;
  --color-primary: #1aa5d8;
  --color-primary-dark: #1186b1;
  --color-accent: #f4b5ff;
  --color-card-bg: #ffffff;
  --color-border: rgba(15, 60, 75, 0.1);
  --font-heading: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow-lg: 0 24px 56px rgba(13, 83, 116, 0.15);
  --shadow-md: 0 18px 40px rgba(19, 92, 126, 0.12);
  --shadow-sm: 0 10px 25px rgba(19, 92, 126, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-foreground);
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--color-primary);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  margin: 0 0 16px;
  line-height: 1.2;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 16px 0;
  padding: 0;
  list-style: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  border: 1px solid rgba(26, 165, 216, 0.25);
  color: var(--color-primary);
  background: rgba(26, 165, 216, 0.08);
}

.btn-secondary:hover {
  background: rgba(26, 165, 216, 0.15);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid rgba(15, 60, 75, 0.15);
  border-radius: 999px;
  padding: 12px 24px;
  font-weight: 600;
  color: var(--color-foreground);
}

.btn-outline:hover {
  border-color: rgba(15, 60, 75, 0.35);
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 3px solid rgba(26, 165, 216, 0.4);
  outline-offset: 2px;
}

.site-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav a {
  font-weight: 500;
  color: var(--color-muted);
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  height: 2px;
  left: 0;
  right: 0;
  bottom: -6px;
  background: var(--color-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px 0;
  cursor: pointer;
}

.mobile-nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-foreground);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 140px 0 120px;
  background: radial-gradient(circle at top right, rgba(244, 181, 255, 0.35), transparent 45%),
              linear-gradient(180deg, #f3fbff 0%, #e4f7ff 100%);
}

.hero-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.bubble {
  position: absolute;
  width: 280px;
  height: 280px;
  background: rgba(26, 165, 216, 0.12);
  border-radius: 50%;
  filter: blur(0px);
  animation: float 18s infinite ease-in-out;
}

.bubble-one {
  top: 10%;
  left: -120px;
}

.bubble-two {
  bottom: 0;
  right: -140px;
  animation-delay: 3s;
  background: rgba(244, 181, 255, 0.18);
}

.bubble-three {
  top: -140px;
  right: 12%;
  width: 200px;
  height: 200px;
  animation-delay: 6s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) scale(1);
    opacity: 0.7;
  }
  50% {
    transform: translateY(-20px) scale(1.05);
    opacity: 1;
  }
}

.hero-container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  position: relative;
}

.hero-copy h1 {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin-bottom: 16px;
}

.hero-copy p {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 24px 0;
}

.hero-note {
  color: var(--color-muted);
  font-size: 0.95rem;
}

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

.hero-card {
  width: min(360px, 100%);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow-lg);
  display: grid;
  gap: 16px;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-card .badge {
  background: rgba(26, 165, 216, 0.15);
  color: var(--color-primary);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-card .dot {
  width: 10px;
  height: 10px;
  background: #48c78e;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(72, 199, 142, 0.7);
}

.hero-message {
  padding: 16px;
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
}

.hero-message p {
  margin: 0;
}

.hero-message span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  font-weight: 600;
}

.hero-message.inbound {
  background: rgba(26, 165, 216, 0.12);
  color: var(--color-foreground);
}

.hero-message.outbound {
  background: #fff;
  border: 1px solid rgba(26, 165, 216, 0.18);
}

.trust {
  padding: 48px 0;
  background: #fff;
}

.trust-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.trust p {
  color: var(--color-muted);
  font-weight: 500;
  margin: 0;
}

.trust-logos {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.trust-logos span {
  padding: 12px 20px;
  border-radius: 12px;
  background: rgba(15, 60, 75, 0.06);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: rgba(15, 60, 75, 0.6);
}

.pillars {
  padding: 80px 0;
  background: #fff;
}

.pillars-container {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.pillar-card {
  background: var(--color-card-bg);
  padding: 32px;
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.pillar-icon {
  margin-bottom: 20px;
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(26, 165, 216, 0.12);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 1.05rem;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header p {
  color: var(--color-muted);
  max-width: 620px;
  margin: 0 auto;
}

.how-it-works {
  padding: 100px 0;
  background: linear-gradient(180deg, #f7fbff 0%, #ffffff 100%);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.timeline-step {
  padding: 32px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(26, 165, 216, 0.12);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 16px;
}

.use-cases {
  padding: 100px 0;
  background: #fff;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.use-case-card {
  padding: 32px;
  border-radius: 20px;
  background: var(--color-card-bg);
  border: 1px solid rgba(15, 60, 75, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.use-case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-sm);
}

.feature-detail {
  padding: 100px 0;
  background: linear-gradient(180deg, #f1faff 0%, #ffffff 100%);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--color-card-bg);
  border-radius: 24px;
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.feature-card ul li {
  color: var(--color-muted);
  padding-left: 18px;
  position: relative;
  margin-bottom: 10px;
}

.feature-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(26, 165, 216, 0.4);
}

.pricing {
  padding: 100px 0;
  background: #fff;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.price-card {
  background: var(--color-card-bg);
  border-radius: 24px;
  padding: 36px;
  box-shadow: var(--shadow-sm);
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.price-card ul li {
  color: var(--color-muted);
  margin-bottom: 12px;
}

.price {
  font-size: 2.4rem;
  font-weight: 700;
}

.price-note {
  color: var(--color-muted);
  margin-top: -12px;
}

.price-card .badge {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(26, 165, 216, 0.2);
  color: var(--color-primary);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.price-card.featured {
  border: 1px solid rgba(26, 165, 216, 0.2);
  box-shadow: var(--shadow-md);
}

.pricing-footer {
  margin-top: 32px;
  color: var(--color-muted);
  text-align: center;
}

.testimonials {
  padding: 100px 0;
  background: linear-gradient(180deg, #f7fbff 0%, #ffffff 100%);
}

.testimonials-note {
  color: var(--color-muted);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: var(--color-card-bg);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.testimonial-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(26, 165, 216, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--color-primary);
}

.faq {
  padding: 100px 0;
  background: #fff;
}

.faq-items {
  display: grid;
  gap: 16px;
}

.faq-item {
  background: var(--color-card-bg);
  border-radius: 20px;
  border: 1px solid rgba(15, 60, 75, 0.08);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
}

.faq-question .icon {
  font-size: 1.4rem;
  color: var(--color-primary);
  transition: transform 0.2s ease;
}

.faq-question[aria-expanded="true"] .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 28px;
}

.faq-answer p {
  color: var(--color-muted);
}

.faq-item.open .faq-answer {
  max-height: 180px;
  padding-bottom: 24px;
}

.contact {
  padding: 100px 0;
  background: linear-gradient(180deg, #f3fbff 0%, #ffffff 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-copy p {
  color: var(--color-muted);
}

.contact-note a {
  color: var(--color-primary);
}

.contact-form {
  background: #fff;
  border-radius: 24px;
  padding: 36px;
  box-shadow: var(--shadow-md);
  display: grid;
  gap: 18px;
}

.contact-form label {
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(15, 60, 75, 0.15);
  font-size: 1rem;
  font-family: inherit;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(26, 165, 216, 0.8);
  box-shadow: 0 0 0 4px rgba(26, 165, 216, 0.15);
  outline: none;
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.form-footnote {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0;
}

.final-cta {
  padding: 120px 0;
  background: radial-gradient(circle at top left, rgba(244, 181, 255, 0.35), transparent 40%),
              linear-gradient(180deg, #e4f7ff 0%, #f9fdff 100%);
  position: relative;
  overflow: hidden;
}

.final-cta::before,
.final-cta::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(26, 165, 216, 0.12);
  filter: blur(0px);
}

.final-cta::before {
  width: 240px;
  height: 240px;
  right: -80px;
  top: 10%;
}

.final-cta::after {
  width: 320px;
  height: 320px;
  left: -140px;
  bottom: -80px;
}

.final-cta-container {
  position: relative;
  text-align: center;
  display: grid;
  gap: 20px;
}

.final-cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.final-cta-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.final-cta-badges span {
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(15, 60, 75, 0.08);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer {
  background: #0f3c4b;
  color: rgba(255, 255, 255, 0.82);
  padding: 64px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.site-footer .brand {
  color: #fff;
  margin-bottom: 16px;
  display: inline-block;
}

.site-footer h4 {
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 12px;
}

.site-footer ul li {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
}

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
    justify-content: center;
  }

  .pillars-container,
  .feature-grid,
  .pricing-grid,
  .use-case-grid,
  .timeline,
  .footer-grid,
  .contact-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 14px 0;
  }

  .nav {
    position: absolute;
    inset: 64px 16px auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 16px;
    border-radius: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .trust-container {
    justify-content: center;
    text-align: center;
  }

  .pillars-container,
  .feature-grid,
  .pricing-grid,
  .use-case-grid,
  .timeline,
  .footer-grid,
  .testimonial-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 110px 0 80px;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .final-cta-actions {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .btn {
    width: 100%;
  }

  .trust-logos span {
    width: 100%;
    text-align: center;
  }
}