:root {
  --bg: #050A14;
  --panel: #0B1220;

  --border: rgba(45, 212, 191, 0.10);
  --border-soft: rgba(255, 255, 255, 0.06);

  --primary: #2DD4BF;

  --text: #EAF0F8;
  --muted: #9AA6B2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, sans-serif;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(45, 212, 191, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* CONTAINER */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 26px;
}

.narrow {
  max-width: 740px;
}

/* TYPOGRAPHY */
.h1 {
  font-size: clamp(44px, 5.2vw, 70px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  margin-bottom: 18px;
}

h2 {
  font-size: 30px;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 16px;
}

p {
  font-size: 15.5px;
  line-height: 1.75;
}

.lead {
  color: var(--muted);
  font-size: 17px;
  max-width: 740px;
}

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

.mono {
  font-family: "IBM Plex Mono", monospace;
}

/* HEADER */
.glass {
  position: sticky;
  top: 0;
  z-index: 100;

  background: rgba(5, 10, 20, 0.55);
  backdrop-filter: blur(16px);

  border-bottom: 1px solid transparent;
  transition: all 0.25s ease;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;

  padding: 20px 0;
  transition: padding 0.25s ease;
}

.logo-img {
  height: 58px;
  transition: height 0.25s ease;
}

.glass.shrink {
  background: rgba(5, 10, 20, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(45, 212, 191, 0.14);
  box-shadow: 0 18px 50px rgba(0,0,0,0.35);
}

.glass.shrink .nav {
  padding: 10px 0;
}

.glass.shrink .logo-img {
  height: 40px;
}

/* NAV */
.nav-cta {
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
}

.nav-cta:visited {
  color: var(--primary);
}

/* SECTIONS */
.section {
  padding: 110px 0;
}

.subtle {
  background: linear-gradient(to bottom, rgba(255,255,255,0.02), transparent);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

/* HERO */
.hero {
  padding: 140px 0 110px;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

/* CARDS */
.card {
  padding: 22px;
  border-radius: 16px;

  border: 1px solid rgba(255,255,255,0.06);
  background: linear-gradient(to bottom right, rgba(14,23,38,0.65), rgba(11,18,32,0.35));

  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(45, 212, 191, 0.18);
}

/* INPUT */
.input {
  width: 100%;
  padding: 15px;
  margin-bottom: 12px;

  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);

  background: rgba(11,18,32,0.7);
  color: var(--text);
}

/* BUTTON */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, #2DD4BF, #14B8A6);
  color: #041015;

  padding: 14px 22px;
  border-radius: 12px;

  font-weight: 600;
  text-decoration: none;

  box-shadow: 0 10px 25px rgba(45, 212, 191, 0.12);
}

/* TRUST */
.trust {
  padding: 22px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.trust-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

/* LIST */
.list {
  color: var(--muted);
  line-height: 1.9;
}

/* FOOTER */
footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 26px 0;
}

.footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

/* SELECTION */
::selection {
  background: rgba(45, 212, 191, 0.25);
}