:root {
  color-scheme: dark;
  --bg: #07131a;
  --text: #eef7f8;
  --muted: #97aab2;
  --line: rgba(163, 197, 206, 0.16);
  --accent: #29d3b2;
  --accent-strong: #17b78d;
  --accent-blue: #73bdfd;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.24);
  --radius: 22px;
  --max: 1160px;
  --font-body: "Segoe UI", "Avenir Next", "Helvetica Neue", sans-serif;
  --font-heading: "Trebuchet MS", "Avenir Next Condensed", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background:
    radial-gradient(circle at top, rgba(115, 189, 253, 0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(41, 211, 178, 0.1), transparent 26%),
    linear-gradient(180deg, #061218 0%, #08151c 100%);
  color: var(--text);
  line-height: 1.65;
}

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

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

.container {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
}

.section {
  padding: 2rem 0 4rem;
}

.section-tight {
  padding-top: 0;
  padding-bottom: 2rem;
}

.section-intro {
  padding-top: 2rem;
  padding-bottom: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(6, 18, 24, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.brand span {
  background: linear-gradient(135deg, #eef7f8 10%, var(--accent) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-list,
.footer-links,
.link-list,
.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-list a:hover,
.footer-links a:hover,
.link-list a:hover,
.text-link:hover,
.breadcrumbs a:hover {
  color: var(--accent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #05221c;
  font-weight: 700;
  border: 1px solid transparent;
  box-shadow: 0 10px 28px rgba(23, 183, 141, 0.22);
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
  box-shadow: none;
}

.button-small {
  min-height: 2.4rem;
  padding: 0.6rem 0.95rem;
  font-size: 0.92rem;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0 0 0.9rem;
  font-family: var(--font-heading);
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4.4rem);
  max-width: 14ch;
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}

h3 {
  font-size: 1.15rem;
}

p,
li,
summary {
  color: var(--muted);
  font-size: 1rem;
}

.lead {
  max-width: 70ch;
  font-size: 1.08rem;
}

.intro-copy {
  padding-top: 0.5rem;
}

.hero-grid,
.grid,
.footer-grid,
.article-layout {
  display: grid;
  gap: 1.25rem;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.85fr);
}

.card {
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(14, 31, 39, 0.92), rgba(10, 23, 30, 0.92));
  box-shadow: var(--shadow);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.4rem;
}

.proof-grid,
.grid-2,
.grid-3,
.footer-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.proof-grid {
  gap: 0.8rem;
}

.proof-item {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(12, 27, 34, 0.82);
}

.proof-item p {
  margin: 0;
}

.proof-bullet {
  width: 0.72rem;
  height: 0.72rem;
  margin-top: 0.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  box-shadow: 0 0 0 5px rgba(41, 211, 178, 0.1);
}

.section-heading {
  margin-bottom: 1.4rem;
}

.text-link {
  display: inline-flex;
  margin-top: 0.75rem;
  color: var(--accent-blue);
  font-weight: 600;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
}

.faq-item summary {
  cursor: pointer;
  color: var(--text);
  font-weight: 700;
}

.faq-item p {
  margin: 1rem 0 0;
}

.cta-box {
  text-align: center;
  padding: 2rem;
  background:
    radial-gradient(circle at top, rgba(41, 211, 178, 0.12), transparent 38%),
    linear-gradient(180deg, rgba(13, 31, 39, 0.98), rgba(9, 23, 30, 0.96));
}

.breadcrumbs {
  margin-bottom: 1rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 0.6rem;
  color: rgba(151, 170, 178, 0.55);
}

.article-header {
  margin-bottom: 1.6rem;
}

.article-layout {
  grid-template-columns: minmax(0, 1.6fr) minmax(250px, 0.7fr);
  align-items: start;
}

.article-section + .article-section {
  margin-top: 2rem;
}

.article ul,
.hero-panel ul,
.pricing-card ul {
  padding-left: 1.25rem;
}

.link-list {
  display: grid;
  gap: 0.8rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.8rem 0;
  background: rgba(4, 14, 18, 0.72);
}

.footer-grid {
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  align-items: start;
}

.brand-footer {
  margin-bottom: 0.75rem;
}

.footer-copy {
  max-width: 32ch;
}

.footer-links {
  display: grid;
  gap: 0.55rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .article-layout,
  .footer-grid,
  .grid-3,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-shell {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-list {
    flex-wrap: wrap;
    justify-content: center;
  }

  .container {
    width: min(calc(100% - 1.2rem), var(--max));
  }

  .section {
    padding: 1.4rem 0 3rem;
  }

  .card,
  .cta-box {
    padding: 1.15rem;
  }

  .actions {
    flex-direction: column;
  }

  .button,
  .button-secondary {
    width: 100%;
  }
}