@font-face {
  font-family: "Inter";
  src: url("assets/Inter-Regular.ttf") format("truetype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --teal: #4cafc6;
  --teal-dark: #236b78;
  --green: #287c4a;
  --gold: #fbbe03;
  --cream: #f7f4ef;
  --paper: #fffdf8;
  --ink: #243033;
  --muted: #728082;
  --line: #d8e1df;
  --shadow: 0 18px 45px rgba(31, 52, 57, .14);
  --radius-lg: 26px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(76,175,198,.22), transparent 34rem),
    linear-gradient(135deg, var(--cream), #eef7f4 62%, #fff7df);
}

body::after {
  content: "";
  position: fixed;
  inset: auto -12rem -18rem auto;
  width: 32rem;
  height: 32rem;
  border-radius: 50%;
  background: rgba(251,190,3,.12);
  pointer-events: none;
  filter: blur(8px);
}

.shell {
  width: min(980px, calc(100% - 36px));
  margin: 32px auto;
  position: relative;
  z-index: 1;
}

.hero {
  padding: 8px 4px 24px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-logo {
  width: clamp(76px, 12vw, 118px);
  height: clamp(76px, 12vw, 118px);
  flex: 0 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 10px 22px rgba(31,52,57,.13));
}

.title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.7rem);
  letter-spacing: -.055em;
  line-height: .88;
}

.version {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: .95;
}

.subtitle {
  margin: 10px 0 0;
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.06rem, 2vw, 1.35rem);
  line-height: 1.35;
}

.body-panel {
  background: rgba(255,253,248,.92);
  border: 1px solid rgba(216,225,223,.8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(22px, 4vw, 36px);
}

.section + .section {
  margin-top: clamp(26px, 4vw, 38px);
  padding-top: clamp(24px, 4vw, 34px);
  border-top: 1px solid rgba(216,225,223,.86);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--teal-dark);
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .76rem;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  letter-spacing: -.04em;
  line-height: 1;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
  letter-spacing: -.02em;
}

p, li { line-height: 1.55; }

a {
  color: var(--teal-dark);
  font-weight: 800;
  text-underline-offset: 3px;
}

.download-line {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.download-line:last-child { margin-bottom: 0; }

.feature-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}

.feature-list li {
  position: relative;
  padding-left: 28px;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .48em;
  width: 13px;
  height: 13px;
  border-radius: 4px;
  background: var(--green);
  box-shadow: inset 0 0 0 3px white;
}

.feature-list.compact { gap: 7px; }

.open-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.open-grid ol {
  padding-left: 1.2rem;
  margin: 0;
}

.open-grid p {
  margin: 12px 0 0;
  color: var(--muted);
}

@media (max-width: 820px) {
  .open-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 22px, 980px); margin: 16px auto; }
  .hero { padding-bottom: 18px; }
  .brand-row { align-items: flex-start; }
  .title-row { display: block; }
  .brand-logo { width: 64px; height: 64px; }
  h1 { font-size: 3rem; }
  .body-panel { padding: 18px; border-radius: 20px; }
}