:root {
  --ink: #0d3b4a; --muted: #46707c; --bg: #f4fbfd; --paper: #fff; --line: #bfe0e8;
  --sky: #dff3f8; --sea: #0b7a8c; --sea-deep: #075d6b; --sun: #ffc933; --sun-soft: #fff1bf; --coral: #ff6a4d; --coral-soft: #ffe3dc;
  --raster-accent: #075d6b; --raster-on-accent: #fff; --raster-bg: #ffffff; --raster-fg: #0d3b4a; --raster-radius: 12px;
  --raster-font: "AR One Sans", system-ui, sans-serif; --raster-heading-font: "Ranchers", system-ui, sans-serif;
  --wave: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 12' preserveAspectRatio='none'%3E%3Cpath d='M0 6 Q15 0 30 6 T60 6 T90 6 T120 6 V12 H0Z' fill='%230b7a8c'/%3E%3C/svg%3E");
  --wave-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 12' preserveAspectRatio='none'%3E%3Cpath d='M0 6 Q15 12 30 6 T60 6 T90 6 T120 6 V12 H0Z' fill='%2362c3d3'/%3E%3C/svg%3E");
}
* { box-sizing: border-box; }
html { overflow-x: hidden; }
body { margin: 0; font: 17px/1.65 "AR One Sans", system-ui, sans-serif; color: var(--ink); background: var(--bg); overflow-wrap: break-word; }
/* airmail stripe across the top */
body::before { content: ""; display: block; height: 9px; background: repeating-linear-gradient(-45deg, var(--coral) 0 14px, #fff 14px 24px, #2a9bc4 24px 38px, #fff 38px 48px); }
a { color: var(--sea-deep); text-underline-offset: 3px; }
a:hover { color: var(--coral); }
h1, h2, h3, .brand { font-family: "Ranchers", system-ui, sans-serif; font-weight: 400; line-height: 1.1; letter-spacing: .01em; }
main, .site-header, .site-footer { max-width: 980px; margin: 0 auto; padding: 0 22px; }
img { max-width: 100%; }

/* header */
.site-header { display: flex; justify-content: space-between; align-items: center; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; gap: 10px 20px; }
.brand { font-size: 1.7rem; text-decoration: none; color: var(--ink); display: inline-flex; align-items: center; gap: 10px; }
.brand::before { content: ""; width: 20px; height: 20px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 0 4px var(--sun-soft); flex: none; }
.brand:hover { color: var(--sea-deep); }
nav { display: flex; gap: 6px 18px; flex-wrap: wrap; align-items: center; }
.nav-link { text-decoration: none; color: var(--muted); font-size: 1rem; font-weight: 500; padding: 2px 0; }
.nav-link:hover { color: var(--sea-deep); }
.nav-link.active { color: var(--ink); font-weight: 700; box-shadow: 0 3px 0 var(--coral); }
.nav-link.join { background: var(--sun); color: var(--ink); padding: 5px 16px; border-radius: 999px; font-weight: 700; }
.nav-link.join:hover { background: var(--coral); color: #fff; }

/* hero: a sunny sky over a bit of sea */
.hero { position: relative; overflow: hidden; margin-top: 8px; padding: 56px 36px 92px; display: grid; gap: 14px; border-radius: 28px;
  background: var(--wave) repeat-x left bottom / 150px 16px, var(--wave-light) repeat-x 40px calc(100% - 8px) / 150px 16px, linear-gradient(180deg, #a9e2ee 0%, #e4f6fa 100%); }
.hero::before { content: ""; position: absolute; right: -50px; top: -50px; width: 230px; height: 230px; border-radius: 50%; background: var(--sun);
  box-shadow: 0 0 0 26px rgba(255, 201, 51, .38), 0 0 0 58px rgba(255, 201, 51, .18); }
.hero > * { position: relative; max-width: 620px; }
.hero h1 { font-size: clamp(2.4rem, 7vw, 4rem); margin: 0; }
.lede { font-size: 1.15rem; color: var(--muted); }
.hero .lede { color: var(--ink); }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.btn, button { display: inline-block; font: inherit; font-size: 1rem; font-weight: 700; padding: 10px 22px; border: 2px solid var(--sun); border-radius: 999px; background: var(--sun); color: var(--ink); text-decoration: none; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.btn:hover, button:hover { background: var(--coral); border-color: var(--coral); color: #fff; }
.btn.secondary, button.secondary { background: rgba(255, 255, 255, .6); color: var(--ink); border: 2px solid var(--ink); }
.btn.secondary:hover, button.secondary:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

/* stamp cards: perforated edge, pinned a little crooked like a postcard wall */
.stamps { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 28px; margin: 28px 0 40px; }
.stamp { background: var(--paper); padding: 12px 12px 14px; position: relative; filter: drop-shadow(0 3px 4px rgba(13, 59, 74, .22)); transition: transform .2s;
  -webkit-mask: radial-gradient(circle 4px at 50% 0, #0000 98%, #000) top/12px 51% repeat-x, radial-gradient(circle 4px at 50% 100%, #0000 98%, #000) bottom/12px 51% repeat-x;
  mask: radial-gradient(circle 4px at 50% 0, #0000 98%, #000) top/12px 51% repeat-x, radial-gradient(circle 4px at 50% 100%, #0000 98%, #000) bottom/12px 51% repeat-x; }
.stamp:nth-child(odd) { transform: rotate(-1.2deg); }
.stamp:nth-child(even) { transform: rotate(1deg); }
.stamp:hover { transform: rotate(0) translateY(-3px); }
.stamp a { text-decoration: none; color: inherit; display: block; }
.stamp img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; display: block; border: 1px solid var(--line); background: var(--sky); }
.stamp h3 { font-size: 1.25rem; margin: 10px 0 2px; }
.stamp .meta { font-size: .85rem; }
.stamp .denom { position: absolute; top: 18px; right: 18px; background: var(--sun); color: var(--ink); font-weight: 700; font-size: .85rem; padding: 0 9px; border-radius: 999px; }

.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 48px; padding-bottom: 6px; border-bottom: 3px solid var(--sun); }
.section-head h2 { margin: 0; font-size: 2rem; }

/* features: three sunny tints, no borders */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin: 24px 0; }
.feature { background: var(--sun-soft); border-radius: 20px; padding: 24px; }
.feature:nth-child(3n+2) { background: var(--sky); }
.feature:nth-child(3n+3) { background: var(--coral-soft); }
.feature h2 { font-size: 1.5rem; margin: 0 0 8px; }
.feature p:last-child { margin-bottom: 0; }

.latest { margin: 40px 0; }
.news-item { padding: 16px 0; border-bottom: 1px dashed var(--line); }
.news-item h2, .news-item h3 { margin: 0; font-size: 1.5rem; }
.news-item a { text-decoration: none; }
.news-item a:hover { text-decoration: underline; }
.news-list { padding-left: 20px; }
.meta { color: var(--muted); font-size: .92rem; margin: 0; }

/* detail */
.detail { display: grid; grid-template-columns: minmax(220px, 340px) 1fr; gap: 36px; padding: 40px 0; align-items: start; }
.detail img { width: 100%; border: 10px solid var(--paper); box-shadow: 0 6px 18px rgba(13, 59, 74, .25); transform: rotate(-1deg); }
.detail h1 { margin: 0 0 8px; font-size: 2.6rem; }
.facts { display: grid; grid-template-columns: auto 1fr; gap: 4px 18px; margin: 18px 0; padding: 16px 20px; background: var(--sky); border-radius: 16px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; }
@media (max-width: 700px) { .detail { grid-template-columns: 1fr; gap: 24px; } }

.prose { max-width: 700px; padding-bottom: 40px; }
.prose h1, main > h1 { font-size: 2.8rem; margin: 40px 0 12px; }
.narrow { max-width: 520px; }
.stack { display: grid; gap: 14px; margin: 16px 0; }
.stack label { display: grid; gap: 4px; font-weight: 600; }
input, textarea, select { font: inherit; padding: 10px 14px; border: 2px solid var(--line); border-radius: 12px; background: #fff; color: var(--ink); max-width: 100%; }
input:focus, textarea:focus, select:focus { outline: 0; border-color: var(--sea); box-shadow: 0 0 0 3px rgba(11, 122, 140, .2); }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; }
.error { color: #b3261e; margin: 0; }
.notice { background: var(--sun-soft); border-radius: 12px; padding: 10px 16px; }
.callout { position: relative; overflow: hidden; background: var(--sea); color: #fff; padding: 44px 32px 56px; margin: 56px 0; text-align: center; border-radius: 28px;
  background-image: var(--wave-light); background-repeat: repeat-x; background-position: left bottom; background-size: 150px 16px; }
.callout h2 { margin: 0 0 8px; font-size: 2.2rem; }
.callout p { margin: 6px 0 18px; }
.callout a.btn { background: var(--sun); color: var(--ink); border-color: var(--sun); }
.callout a.btn:hover { background: #fff; border-color: #fff; color: var(--sea-deep); }

/* footer */
.site-footer { padding-top: 32px; padding-bottom: 48px; color: var(--muted); font-size: .92rem; }
.signup { background: var(--sun-soft); border-radius: 24px; padding: 26px 28px; margin-bottom: 28px; color: var(--ink); }
.signup h2 { font-size: 1.6rem; margin: 0 0 8px; }
.signup p { margin: 0 0 12px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.pager { display: flex; gap: 8px; margin: 24px 0; flex-wrap: wrap; }
.pager a.current { font-weight: 700; text-decoration: none; }
.pager a.disabled { pointer-events: none; opacity: .4; }

@media (max-width: 520px) {
  body { font-size: 16px; }
  .hero { padding: 40px 22px 80px; border-radius: 22px; }
  .hero::before { width: 130px; height: 130px; right: -34px; top: -34px; box-shadow: 0 0 0 18px rgba(255, 201, 51, .38), 0 0 0 38px rgba(255, 201, 51, .18); }
  .callout { padding: 36px 20px 52px; }
  .signup { padding: 22px 20px; }
}
@media (prefers-reduced-motion: reduce) { .stamp, .btn, button { transition: none; } }