:root {
  --deep-sea: #0F1B2E;
  --ocean: #2D6F66;
  --coral: #E06A4F;
  --sun: #D9A441;
  --sand: #F1E7D6;
  --cream: #F4F0E8;
  --ink: #1C2330;
  --body: #4A4F59;
  --muted: #6E6A5C;
  --line: rgba(15, 27, 46, .12);
  --line-soft: rgba(15, 27, 46, .04);
  --muted-on-dark: rgba(255, 255, 255, .6);
  --grad-dark: linear-gradient(150deg, #10203a 0%, #0c1626 60%, #0a1320 100%);
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, Helvetica, Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --radius-btn: 12px;
  --radius-input: 10px;
  --maxw: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--body);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
code, pre { font-family: var(--mono); }
a { color: var(--ocean); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--ocean); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; color: var(--ink); letter-spacing: -0.01em; line-height: 1.1; margin: 0; }
strong { color: var(--ink); font-weight: 600; }

header, main { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.brandbar { padding: 22px 0 6px; }
.lockup { display: inline-flex; align-items: center; gap: 10px; }
.lockup:hover { text-decoration: none; }
.belong-mark { display: block; width: 30px; height: auto; }
.lockup-word { font-family: var(--serif); font-weight: 500; font-size: 22px; color: var(--ink); letter-spacing: -0.01em; line-height: 1; }

header { padding-top: 8px; padding-bottom: 40px; }
.hero { display: grid; gap: 18px; padding: 48px 0 8px; }
.label { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--ocean); margin: 0; }
h1 { font-size: clamp(2.6rem, 6vw, 4.2rem); line-height: 1.06; letter-spacing: -0.01em; }
.subhead { font-size: 18px; color: var(--body); max-width: 60ch; margin: 0; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 10px 0 0; align-items: center; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: var(--radius-btn); font-family: var(--sans); font-weight: 600; font-size: 15px; border: 0; cursor: pointer; transition: filter .15s ease, background .15s ease; }
.btn:hover { text-decoration: none; filter: brightness(1.06); }
.btn-primary { background: var(--deep-sea); color: var(--cream); }
.btn-accent { background: var(--coral); color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }

main { padding-bottom: 24px; }
.band { border-top: 1px solid var(--line); padding: 56px 0; display: grid; gap: 16px; }
.band > h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
.band > h3 { font-size: 1.2rem; margin-top: 8px; }
.band > p { max-width: 68ch; margin: 0; }

.grid { display: grid; gap: 0; grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid { grid-template-columns: 1fr 1fr; } }
.tile { padding: 24px 0; border-top: 1px solid var(--line); }
.tile h3 { display: flex; align-items: center; gap: 8px; font-size: 1.15rem; margin: 0 0 8px; }
.tile p { margin: 0; max-width: 42ch; }
@media (min-width: 720px) {
  .tile { padding: 8px 34px; border-top: 0; }
  .tile:first-child { padding-left: 0; }
  .tile + .tile { border-left: 1px solid var(--line); }
}

#connect article + article { margin-top: 24px; }
#connect h3 { font-size: 1.15rem; margin: 0 0 10px; }
#connect p { max-width: 68ch; }
pre { background: var(--deep-sea); color: var(--sand); padding: 16px 18px; border-radius: 12px; overflow-x: auto; font-size: 13px; line-height: 1.5; }
pre code { color: inherit; background: none; padding: 0; }
code { background: rgba(45, 111, 102, .10); color: var(--ink); padding: 2px 6px; border-radius: 6px; font-size: .9em; }
ul { color: var(--body); }

[role="tablist"] { display: inline-flex; gap: 4px; margin-bottom: 20px; background: #fff; padding: 4px; border-radius: 12px; box-shadow: inset 0 0 0 1px var(--line); }
[role="tab"] { border: 0; background: transparent; padding: 8px 16px; border-radius: 9px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; }
[role="tab"][aria-selected="true"] { background: var(--deep-sea); color: var(--cream); }

textarea { width: 100%; font-family: var(--sans); font-size: 14px; padding: 12px 14px; border-radius: var(--radius-input); border: 1px solid var(--line); background: #fff; color: var(--ink); resize: vertical; }
textarea:focus { outline: 2px solid var(--ocean); outline-offset: 0; border-color: transparent; }
.icon { width: 18px; height: 18px; flex: none; color: var(--ocean); }

footer { background: var(--grad-dark); color: var(--muted-on-dark); margin-top: 32px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 56px 24px 64px; display: grid; gap: 36px; }
@media (min-width: 720px) { .footer-inner { grid-template-columns: auto 1fr; align-items: start; gap: 64px; } }
.footer-lockup { display: flex; align-items: center; gap: 14px; }
.footer-lockup .belong-mark { width: 56px; }
.footer-word { color: #fff; font-size: 34px; }
.footer-index h2 { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-on-dark); margin: 0 0 12px; font-family: var(--sans); }
.footer-index ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; color: var(--muted-on-dark); }
.footer-index a { color: var(--sand); }
.footer-index a:hover { color: #fff; }
.legal { font-size: 13px; margin: 20px 0 0; color: var(--muted-on-dark); }