:root {
  color-scheme: light;
  --bg-main: #0c141a;
  --bg-glow: #0f1d26;
  --bg-soft: #f4f7fb;
  --card: rgba(255, 255, 255, 0.08);
  --card-light: rgba(255, 255, 255, 0.65);
  --text-main: #0e1216;
  --text-light: #f7f9fb;
  --muted: #5b6b77;
  --muted-light: #b9c5cf;
  --primary: #1b8ef2;
  --primary-dark: #0b5fa8;
  --accent: #62e0c2;
  --shadow: 0 24px 60px rgba(7, 16, 25, 0.16);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "SF Pro Text", "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background: radial-gradient(circle at top, rgba(98, 224, 194, 0.2), transparent 55%),
    linear-gradient(120deg, #eef4ff 0%, #f6f8fc 50%, #edf6f3 100%);
  min-height: 100vh;
}

html {
  scroll-behavior: smooth;
}

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

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

.container {
  width: min(100%, var(--container));
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 20px;
  background: #fff;
  color: #000;
  padding: 8px 12px;
  border-radius: 8px;
  z-index: 999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(15, 40, 60, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: #0b1117;
}

.brand-logo {
  height: 36px;
  width: auto;
}

.brand-name {
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-weight: 500;
}

.nav-links a {
  padding: 6px 0;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  height: 2px;
  width: 0;
  background: var(--primary);
  transition: width 0.2s ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(15, 40, 60, 0.2);
  border-radius: 10px;
  padding: 8px;
  gap: 4px;
  flex-direction: column;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #0e141b;
}

.mobile-panel {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(15, 40, 60, 0.08);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease;
}

.mobile-panel.is-open {
  max-height: 420px;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 16px 30px rgba(27, 142, 242, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(27, 142, 242, 0.35);
}

.btn-ghost {
  border-color: rgba(27, 142, 242, 0.4);
  color: var(--primary-dark);
  background: rgba(255, 255, 255, 0.6);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(27, 142, 242, 0.15);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
  padding: 72px 0 40px;
}

.hero-tag {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(98, 224, 194, 0.2);
  color: #0b5d4a;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-content h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
  margin-bottom: 16px;
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 24px;
}

.mini-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-weight: 600;
}

.mini-benefits span {
  background: rgba(15, 40, 60, 0.06);
  padding: 6px 12px;
  border-radius: 999px;
}

.hero-visual {
  position: relative;
  display: grid;
  gap: 18px;
  justify-items: center;
}

.hero-logo {
  width: min(200px, 60%);
  height: auto;
  opacity: 0.9;
}

.hero-card {
  background: rgba(12, 20, 26, 0.9);
  color: var(--text-light);
  padding: 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.hero-card p {
  color: var(--muted-light);
  margin-bottom: 18px;
}

.hero-metrics {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-metrics div {
  display: grid;
  gap: 4px;
}

.social-proof {
  padding: 32px 0 48px;
}

.social-proof p {
  font-weight: 600;
  color: #1b2b36;
  margin-bottom: 18px;
}

.proof-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.proof-badges span {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(15, 40, 60, 0.08);
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 600;
  color: #1a2630;
}

.section-header {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.section-header p {
  color: var(--muted);
  max-width: 560px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card-light);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(15, 40, 60, 0.1);
  border-radius: var(--radius-md);
  padding: 22px;
  display: grid;
  gap: 14px;
  box-shadow: 0 18px 40px rgba(15, 40, 60, 0.08);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(27, 142, 242, 0.12);
  color: #1b6dc2;
}

.card ul {
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.how-it-works {
  padding: 64px 0;
  background: linear-gradient(120deg, rgba(12, 20, 26, 0.9), rgba(15, 29, 38, 0.95));
  color: var(--text-light);
  margin-top: 64px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.step {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 22px;
  border-radius: var(--radius-md);
}

.step-number {
  font-size: 0.95rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.use-cases {
  padding: 72px 0;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.tab-btn {
  border: 1px solid rgba(15, 40, 60, 0.2);
  background: rgba(255, 255, 255, 0.7);
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.is-active {
  background: linear-gradient(120deg, rgba(27, 142, 242, 0.9), rgba(98, 224, 194, 0.9));
  color: #fff;
  border-color: transparent;
}

.tab-panels {
  display: grid;
}

.tab-panel {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(15, 40, 60, 0.1);
  border-radius: var(--radius-md);
  padding: 24px;
  display: none;
  box-shadow: 0 18px 40px rgba(15, 40, 60, 0.08);
  backdrop-filter: blur(14px);
}

.tab-panel.is-active {
  display: grid;
  gap: 12px;
}

.tab-panel ul {
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.impact {
  padding: 72px 0;
  background: radial-gradient(circle at 20% 20%, rgba(27, 142, 242, 0.18), transparent 60%),
    linear-gradient(120deg, #f7f8fc 0%, #f1f6f3 100%);
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.impact-card {
  background: rgba(255, 255, 255, 0.82);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid rgba(15, 40, 60, 0.1);
  box-shadow: 0 16px 30px rgba(15, 40, 60, 0.08);
  backdrop-filter: blur(12px);
}

.faq {
  padding: 72px 0;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq details {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(15, 40, 60, 0.1);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
}

.faq summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
}

.faq p {
  color: var(--muted);
  margin-top: 10px;
}

.contact {
  padding: 72px 0 96px;
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  background: rgba(12, 20, 26, 0.96);
  color: var(--text-light);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.contact-text p {
  color: var(--muted-light);
  margin: 14px 0 20px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  color: #eff4f8;
}

.contact-form input,
.contact-form textarea {
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}

.site-footer {
  background: #0c141a;
  color: var(--text-light);
  padding: 32px 0 40px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  align-items: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.footer-logo {
  height: 32px;
  width: auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted-light);
}

.footer-note {
  color: var(--muted-light);
  font-size: 0.95rem;
  display: grid;
  gap: 6px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

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

  .menu-toggle {
    display: inline-flex;
  }

  .hero {
    padding-top: 56px;
  }
}

@media (max-width: 600px) {
  .navbar {
    flex-wrap: wrap;
  }

  .brand-name {
    font-size: 1rem;
  }

  .hero-card {
    padding: 20px;
  }

  .contact-card {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }

  .reveal,
  .btn,
  .nav-links a::after {
    transition: none !important;
  }
}