/* Delta - one register only: the luminous sage mist of the brand. There is deliberately no dark
   theme: a dark palette turned every section into the same flat green slab, which is the opposite
   of the reference. `color-scheme: light` also stops a browser from forcing its own dark mode. */
:root {
  --bg: #f3f7f1;
  --bg2: #e5eee3;
  --surface: #fafcf8;
  --ink: #173a2b;
  --ink2: #345344;
  --muted: #526b5b;
  --accent: #36704f;
  --accent-deep: #1f4c35;
  --line: #cad8cb;
  --line-soft: #e0e9df;
  --chart: #2f7a4f;
  --chart-wash: rgba(47, 122, 79, 0.1);
  --glass: rgba(250, 252, 248, 0.62);
  --glass-line: rgba(255, 255, 255, 0.75);
  --shadow: 0 1px 2px rgba(23, 58, 43, 0.05), 0 18px 46px rgba(23, 58, 43, 0.08);
  --radius: 20px;
  --rail: 236px;
  --font-head: "Manrope", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  margin: 0; color: var(--ink); font: 15px/1.6 var(--font-body); overflow-x: hidden;
  background:
    radial-gradient(120% 60% at 78% -6%, #ffffff 0%, rgba(255,255,255,0) 55%),
    radial-gradient(90% 55% at 8% 12%, #ffffff 0%, rgba(255,255,255,0) 60%),
    radial-gradient(120% 70% at 50% 108%, var(--bg2) 0%, rgba(229,238,227,0) 60%),
    linear-gradient(180deg, var(--bg) 0%, #eef4ec 45%, var(--bg) 100%);
  background-attachment: fixed;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-deep); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-head); letter-spacing: -0.02em; line-height: 1.14; margin: 0 0 .5em; }
h1 { font-size: clamp(34px, 5.2vw, 62px); font-weight: 600; }
h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 600; }
h3 { font-size: 17px; font-weight: 700; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); font-size: .88em; overflow-wrap: anywhere; }

/* ---------------------------------------------------------------- the river rail */
.rail {
  position: fixed; inset: 0 auto 0 0; width: var(--rail); padding: 28px 22px; z-index: 20;
  display: flex; flex-direction: column; gap: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.72) 0%, rgba(243,247,241,.35) 60%, rgba(243,247,241,0) 100%);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { width: 36px; height: auto; filter: drop-shadow(0 4px 10px rgba(23,58,43,.16)); }
.brand b { font: 700 19px var(--font-head); letter-spacing: -0.02em; }
.river { position: relative; list-style: none; margin: 0; padding: 0 0 0 18px; }
.river::before {
  content: ""; position: absolute; left: 5px; top: 10px; bottom: 10px; width: 2px;
  background: linear-gradient(180deg, rgba(202,216,203,.2), var(--accent) 45%, rgba(202,216,203,.2));
  border-radius: 2px;
}
.river li { position: relative; }
.river a { display: block; padding: 7px 10px; margin: 2px 0; border-radius: 10px; text-decoration: none; color: var(--ink2); font-weight: 500; font-size: 14px; }
.river a::before {
  content: ""; position: absolute; left: -17px; top: 50%; width: 10px; height: 10px; margin-top: -5px;
  border-radius: 50%; background: var(--surface); border: 2px solid var(--line);
}
.river a:hover { background: rgba(255,255,255,.6); }
.river a[aria-current="page"] { color: var(--ink); background: rgba(255,255,255,.85); box-shadow: var(--shadow); }
.river a[aria-current="page"]::before { border-color: var(--accent); background: var(--accent); }
.rail-foot { margin-top: auto; font-size: 12px; color: var(--muted); }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: rgba(255,255,255,.75); color: var(--ink2); box-shadow: inset 0 0 0 1px var(--line-soft); }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #b08a3c; }
.pill.live::before { background: var(--chart); }

.topbar { display: none; }
main { margin-left: var(--rail); min-height: 100vh; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 40px; }

.btn {
  appearance: none; border: 0; cursor: pointer; font: 600 14px var(--font-body);
  padding: 11px 18px; border-radius: 12px; background: var(--ink); color: #f3f7f1;
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  box-shadow: 0 6px 18px rgba(23,58,43,.18);
}
.btn:hover { background: var(--accent-deep); color: #fff; }
.btn.ghost { background: rgba(255,255,255,.7); color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.btn.ghost:hover { background: #fff; color: var(--ink); }
.btn[disabled] { opacity: .5; cursor: not-allowed; box-shadow: none; }
.wallet-btn { width: 100%; justify-content: center; }

/* ---------------------------------------------------------------- full-bleed bands
   Each section is a photographic band whose top and bottom dissolve into the page, so no two
   sections read as the same plate and nothing sits on a flat colour. */
.band { position: relative; isolation: isolate; }
.band::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: var(--band); background-size: cover; background-position: var(--band-pos, center);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 86%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 86%, transparent 100%);
  opacity: var(--band-opacity, 1);
}
.band > .wrap { position: relative; }

/* hero */
.source { position: relative; min-height: min(68vh, 640px); display: flex; align-items: center; overflow: hidden; }
.source::before {
  background-image: linear-gradient(90deg, rgba(243,247,241,.92) 0%, rgba(243,247,241,.45) 46%, rgba(243,247,241,0) 72%), var(--band);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 74%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, #000 74%, transparent 100%);
}
.source .wrap { width: 100%; padding-top: clamp(40px, 8vh, 90px); padding-bottom: clamp(40px, 8vh, 90px); }
.source h1 { max-width: 12.5em; }
.source .lede { max-width: 30em; font-size: 17px; color: var(--ink2); }
.glyph-float {
  position: absolute; right: clamp(8px, 3vw, 56px); top: 50%; transform: translateY(-50%);
  width: min(33vw, 420px); height: auto; flex: 0 0 auto; pointer-events: none; z-index: -1;
  filter: drop-shadow(0 30px 50px rgba(23, 58, 43, .14));
  animation: float 9s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(-50%); } 50% { transform: translateY(calc(-50% - 14px)); } }
@media (prefers-reduced-motion: reduce) { .glyph-float { animation: none; } .stream { animation: none !important; } }

.eyebrow { font: 600 12px var(--font-body); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.readout {
  display: inline-flex; flex-wrap: wrap; gap: 16px 30px; margin-top: 18px; padding: 16px 22px;
  border-radius: 16px; background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow), inset 0 0 0 1px var(--glass-line);
}
.readout .k { font-size: 12px; color: var(--muted); }
.readout .v { font: 600 22px var(--font-head); color: var(--ink); font-variant-numeric: tabular-nums; }

/* content bands */
.flow { padding: 30px 0 30px; }
.flow-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 46px; align-items: center; }
.confluence { padding: 70px 0 40px; }
.basin { padding: 90px 0 110px; }
.basin h2 { max-width: 13em; }
.basin p { max-width: 32em; color: var(--ink2); }

.delta-map { position: relative; border-radius: 24px; overflow: hidden; aspect-ratio: 4 / 3; box-shadow: var(--shadow); }
.delta-map img { width: 100%; height: 100%; object-fit: cover; }
.delta-map svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.stream { fill: none; stroke: rgba(255,255,255,.9); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 4 10; animation: flow 3.2s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -28; } }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 24px 0; }
.stat, .card {
  background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius); box-shadow: var(--shadow), inset 0 0 0 1px var(--glass-line); min-width: 0;
}
.stat { padding: 16px 18px; }
.stat .k { font-size: 12.5px; color: var(--muted); }
.stat .v { font: 600 24px var(--font-head); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.stat .s { font-size: 12px; color: var(--muted); }
.card { padding: 24px; }
.card + .card { margin-top: 18px; }
.card.bloom { background-image: linear-gradient(rgba(250,252,248,.5), rgba(250,252,248,.5)), url(../img/panel.webp); background-size: cover; }

footer { padding: 36px 0 60px; color: var(--muted); font-size: 13px; }

/* ---------------------------------------------------------------- inner pages */
.page { padding: 52px 0 60px; }
.page-head { max-width: 46em; margin-bottom: 26px; }
.page-head p { color: var(--ink2); font-size: 16px; }
.two { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 18px; }
.banner {
  display: flex; gap: 12px; align-items: flex-start; padding: 13px 16px; border-radius: 14px;
  background: rgba(255,255,255,.62); box-shadow: inset 0 0 0 1px var(--line-soft);
  color: var(--ink2); font-size: 13.5px; margin-bottom: 20px; backdrop-filter: blur(8px);
}
.banner b { color: var(--ink); }
.empty { padding: 22px 0; color: var(--muted); font-size: 14px; }
.empty b { color: var(--ink); display: block; font: 600 16px var(--font-head); margin-bottom: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: 12px; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; }

/* chart + schematic */
.chart { position: relative; }
.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart .grid line { stroke: var(--line); stroke-width: 1; }
.chart .axis text { fill: var(--muted); font-size: 11px; font-family: var(--font-body); }
.chart .ln { fill: none; stroke: var(--chart); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .wash { fill: var(--chart-wash); }
.chart .end { fill: var(--chart); stroke: var(--surface); stroke-width: 2; }
.chart .xh { stroke: var(--muted); stroke-width: 1; }
.chart .endlab { fill: var(--ink); font: 600 12px var(--font-body); }
.chart .sch-ln { fill: none; stroke: var(--chart); stroke-width: 2; stroke-linejoin: round; }
.chart .sch-wash { fill: var(--chart-wash); }
.chart .sch-axis line { stroke: var(--line); stroke-width: 1; }
.chart .sch-axis text { fill: var(--muted); font: 11px var(--font-body); letter-spacing: .06em; text-transform: uppercase; }
.chart .sch-lab text { fill: var(--ink2); font: 600 11.5px var(--font-body); }
.tip { position: absolute; pointer-events: none; background: var(--ink); color: #f3f7f1; font-size: 12px; padding: 6px 9px; border-radius: 8px; white-space: nowrap; transform: translate(-50%, -115%); opacity: 0; transition: opacity .12s; }
.chart-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.tag { font: 600 11px var(--font-body); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding: 3px 9px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--line); }
.linkbtn { background: none; border: 0; padding: 0; color: var(--accent-deep); font: 600 13px var(--font-body); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }

.bar-row { display: grid; grid-template-columns: minmax(0, 9em) minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 8px 0; }
.bar-row .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; font-size: 13.5px; }
.bar-track { height: 12px; }
.bar { height: 12px; border-radius: 0 4px 4px 0; background: var(--chart); min-width: 2px; }
.bar-row .val { font-variant-numeric: tabular-nums; font-size: 13px; color: var(--ink2); }

/* forms */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--ink2); }
input[type=text], input[type=number] {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line);
  background: rgba(255,255,255,.8); color: var(--ink); font: 15px var(--font-body);
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > input { flex: 1 1 220px; min-width: 0; }
.quote { margin: 16px 0; padding: 14px 16px; border-radius: 12px; background: rgba(255,255,255,.55); box-shadow: inset 0 0 0 1px var(--line); font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: minmax(0, 12em) minmax(0, 1fr); gap: 6px 14px; font-size: 13.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding: 0 0 18px 44px; }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: -2px; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; background: rgba(255,255,255,.85); box-shadow: inset 0 0 0 2px var(--accent); font: 700 13px var(--font-head);
}
.note { font-size: 13px; color: var(--muted); }
.msg { margin-top: 12px; font-size: 13.5px; min-height: 1.2em; overflow-wrap: anywhere; }
.msg.err { color: #9c3c25; }
.prose { max-width: 46em; }
.prose h3 { margin-top: 1.6em; }
.prose ul { padding-left: 1.2em; }
.formula { font: 600 18px var(--font-head); padding: 14px 18px; border-radius: 14px; background: rgba(255,255,255,.6); box-shadow: inset 0 0 0 1px var(--line); display: inline-block; max-width: 100%; }

/* ---------------------------------------------------------------- phone */
@media (max-width: 980px) {
  .rail { display: none; }
  main { margin-left: 0; }
  .topbar {
    display: block; position: sticky; top: 0; z-index: 30; background: rgba(243,247,241,.82);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 1px 0 rgba(202,216,203,.6);
  }
  .topbar .bar-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; gap: 10px; }
  .topbar .brand img { width: 30px; }
  .topbar .btn { padding: 8px 12px; font-size: 13px; }
  .topnav { display: flex; gap: 6px; overflow-x: auto; padding: 0 16px 10px; scrollbar-width: none; }
  .topnav::-webkit-scrollbar { display: none; }
  .topnav a { flex: 0 0 auto; padding: 6px 12px; border-radius: 999px; font-size: 13px; text-decoration: none; color: var(--ink2); box-shadow: inset 0 0 0 1px var(--line); }
  .topnav a[aria-current="page"] { background: var(--ink); color: #f3f7f1; }
  .wrap { padding: 0 16px; }
  .flow-grid, .two { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .source { min-height: auto; padding: 8px 0 34px; display: block; }
  .source::before { background-image: linear-gradient(180deg, rgba(243,247,241,.5) 0%, rgba(243,247,241,.86) 62%), var(--band); }
  .glyph-float { position: relative; right: auto; top: auto; transform: none; width: 58%; max-width: 280px; margin: 6px auto -6px; animation: none; }
  .readout { gap: 12px 20px; }
  .readout .v { font-size: 18px; }
  .kv { grid-template-columns: minmax(0, 1fr); }
  .kv dd { margin-bottom: 8px; }
  .confluence { padding: 40px 0 20px; }
  .basin { padding: 60px 0 70px; }
}

/* the landing's tributary list (populated only when launches are actually routed) */
.trib-list { list-style: none; margin: 0; padding: 0; }
.trib-list li { display: grid; grid-template-columns: 14px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line-soft); }
.trib-list .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(255,255,255,.7); }
.trib-list .nm { font-weight: 600; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trib-list .sub { color: var(--muted); font-size: 12.5px; }
.trib-list .val { font: 600 15px var(--font-head); font-variant-numeric: tabular-nums; text-align: right; }