/* Pearl Sweep — "tidal refinery" theme.
 * Deep slate/teal water, pearl-lustre accents, slow drift currents. */
:root {
  --bg: #081114;
  --bg2: #0b1a1f;
  --panel: rgba(16, 34, 40, 0.82);
  --line: rgba(126, 200, 214, 0.18);
  --ink: #e9f3f5;
  --dim: #8fa9b1;
  --teal: #39c2d7;
  --teal-deep: #0f6f80;
  --pearl: #f2eef3;
  --pearl-glow: rgba(242, 238, 243, 0.35);
  --luster-a: #bfe3ea;
  --luster-b: #f4dfe8;
  --amber: #f0b35e;
  --red: #ff7a7a;
  --green: #7de8a8;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  line-height: 1.55;
}

/* drifting currents */
.current { position: fixed; inset: 0; overflow: hidden; z-index: 0; pointer-events: none; }
.drift {
  position: absolute; border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(57, 194, 215, 0.10), transparent 70%);
  animation: drift 26s ease-in-out infinite alternate;
}
.d1 { width: 46vw; height: 30vh; top: 4%; left: -8%; }
.d2 { width: 38vw; height: 26vh; top: 30%; right: -10%; animation-delay: -8s; }
.d3 { width: 52vw; height: 34vh; bottom: 6%; left: 12%; animation-delay: -15s; }
.d4 { width: 20vw; height: 16vh; top: 55%; left: 40%; animation-delay: -4s; }
.d5 { width: 30vw; height: 20vh; top: 12%; left: 55%; animation-delay: -20s; }
.d6 { width: 24vw; height: 18vh; bottom: 30%; right: 20%; animation-delay: -11s; }
@keyframes drift {
  from { transform: translate3d(-4%, 2%, 0) scale(1); }
  to { transform: translate3d(6%, -3%, 0) scale(1.12); }
}

.top, main, footer { position: relative; z-index: 1; }
.top { max-width: 1020px; margin: 0 auto; padding: 34px 20px 10px; }
.crumb { color: var(--teal); text-decoration: none; font-size: 0.9rem; }
.crumb:hover { text-decoration: underline; }
h1 {
  font-size: 2.4rem; margin: 10px 0 6px; letter-spacing: 0.5px;
  background: linear-gradient(100deg, var(--pearl) 20%, var(--luster-a) 45%, var(--luster-b) 65%, var(--pearl) 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 34px var(--pearl-glow);
}
.pearl-dot {
  display: inline-block; width: 0.55em; height: 0.55em; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffffff, var(--luster-a) 45%, var(--teal-deep) 100%);
  box-shadow: 0 0 18px 4px rgba(191, 227, 234, 0.55);
  margin-right: 0.35em; vertical-align: baseline;
}
.sub { color: var(--dim); max-width: 62ch; margin: 0; }

main { max-width: 1020px; margin: 0 auto; padding: 18px 20px 60px; }

/* stepper */
.steps {
  display: flex; gap: 8px; margin: 6px 0 18px; flex-wrap: wrap;
  border: 0; padding: 0;
}
.step {
  flex: 1 1 0; min-width: 120px;
  background: var(--panel); border: 1px solid var(--line); color: var(--dim);
  border-radius: var(--radius); padding: 10px 8px; cursor: pointer; font-size: 0.92rem;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
.step .n {
  width: 1.6em; height: 1.6em; border-radius: 50%; display: inline-flex;
  align-items: center; justify-content: center; font-size: 0.85em;
  background: rgba(57, 194, 215, 0.12); border: 1px solid var(--line);
}
.step.active {
  color: var(--ink); border-color: var(--teal);
  box-shadow: 0 0 0 1px var(--teal), 0 0 22px rgba(57, 194, 215, 0.25);
}
.step.done { color: var(--teal); }

.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px; margin: 0 0 18px;
  backdrop-filter: blur(6px);
}
.panel h2 { margin: 0 0 14px; font-size: 1.25rem; color: var(--luster-a); }
.panel h3 { margin: 20px 0 10px; font-size: 1.05rem; color: var(--pearl); }
.panel h3 small { color: var(--dim); font-weight: normal; }

.field { display: block; margin: 12px 0; }
.field > span { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.92rem; }
.field > span small { color: var(--dim); font-weight: normal; }
input[type="text"], input[type="url"], input[type="number"], textarea, select {
  width: 100%; background: rgba(6, 16, 19, 0.75); color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
  font-size: 0.95rem; font-family: inherit;
}
input:focus, textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 1px var(--teal); }
input[readonly] { color: var(--dim); }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.88em; overflow-wrap: anywhere; }
.num { max-width: 220px; }
textarea { resize: vertical; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 16px; }
.row { display: flex; gap: 8px; align-items: center; }

.actions { display: flex; gap: 10px; margin: 14px 0 4px; flex-wrap: wrap; align-items: center; }
.btn {
  background: rgba(57, 194, 215, 0.10); color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 18px;
  font-size: 0.95rem; cursor: pointer; font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn:hover:not(:disabled) { border-color: var(--teal); box-shadow: 0 0 14px rgba(57, 194, 215, 0.25); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.primary {
  background: linear-gradient(120deg, var(--teal-deep), #127b8d);
  border-color: var(--teal); color: #f2feff; font-weight: 600;
}
.btn.ghost { background: transparent; }
.btn.danger {
  background: linear-gradient(120deg, #7a2b2b, #a83a3a); border-color: var(--red); font-weight: 600;
}
.btn.small { padding: 4px 10px; font-size: 0.8rem; }
.copied { color: var(--green); font-size: 0.9rem; }

.error {
  background: rgba(255, 122, 122, 0.10); border: 1px solid var(--red); color: #ffc9c9;
  border-radius: var(--radius); padding: 12px 16px; max-width: 1020px; margin: 0 auto 14px;
  white-space: pre-wrap;
}
.status { color: var(--dim); min-height: 1.4em; overflow-wrap: anywhere; }
#sw-signed { overflow: hidden; }
.note { color: var(--dim); font-size: 0.92rem; }
.ok-line { color: var(--green); font-weight: 600; }

/* dashboard */
.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 14px 0; }
.stat {
  background: rgba(6, 16, 19, 0.6); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 14px; display: flex; flex-direction: column; gap: 2px;
}
.stat .k { color: var(--dim); font-size: 0.8rem; }
.stat .v { font-size: 1.35rem; font-weight: 700; color: var(--pearl); }
.stat.dust .v { color: var(--amber); }
.stat.unecon .v { color: #f0d35e; }
.stat.healthy .v { color: var(--green); }
.stat.save .v { color: var(--teal); }

.hist { display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }
.hrow { display: grid; grid-template-columns: 130px 1fr 120px; gap: 10px; align-items: center; font-size: 0.85rem; }
.hrow .bar-track { background: rgba(6, 16, 19, 0.7); border-radius: 6px; height: 16px; overflow: hidden; }
.hrow .bar-fill {
  height: 100%; border-radius: 6px;
  background: linear-gradient(90deg, var(--teal-deep), var(--teal));
  box-shadow: 0 0 10px rgba(57, 194, 215, 0.35);
  transition: width 0.6s ease;
}
.hrow .hv { color: var(--dim); text-align: right; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid rgba(126, 200, 214, 0.10); }
th { color: var(--dim); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.5px; }
td.addr, td.txid { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.78rem; word-break: break-all; }
tr:last-child td { border-bottom: 0; }

.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600;
  border: 1px solid;
}
.badge.dust { color: var(--amber); border-color: var(--amber); background: rgba(240, 179, 94, 0.10); }
.badge.uneconomic { color: #f0d35e; border-color: #f0d35e; background: rgba(240, 211, 94, 0.08); }
.badge.healthy { color: var(--green); border-color: var(--green); background: rgba(125, 232, 168, 0.08); }

.strategy { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin: 12px 0; }
.strategy legend { padding: 0 8px; color: var(--dim); font-size: 0.85rem; }
.strategy label { display: block; margin: 8px 0; cursor: pointer; font-size: 0.95rem; }
.strategy input[type="radio"] { width: auto; accent-color: var(--teal); }

.math {
  background: rgba(6, 16, 19, 0.7); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; white-space: pre-wrap; font-size: 0.9rem; line-height: 1.7;
}
.warnings { margin: 12px 0; }
.warnings .warn {
  background: rgba(240, 179, 94, 0.08); border: 1px solid var(--amber); color: #ffd9a0;
  border-radius: 10px; padding: 10px 14px; margin: 8px 0; font-size: 0.9rem;
}
.refusal {
  background: rgba(255, 122, 122, 0.08); border: 2px solid var(--red); border-radius: var(--radius);
  padding: 16px 18px; margin: 14px 0;
}
.refusal h3 { color: var(--red); margin: 0 0 8px; }
.refusal p { margin: 0; white-space: pre-wrap; }

.confirm {
  display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; cursor: pointer;
  background: rgba(255, 122, 122, 0.06); border: 1px solid rgba(255, 122, 122, 0.4);
  border-radius: 10px; padding: 12px 14px; font-size: 0.9rem;
}
.confirm input { width: auto; margin-top: 4px; accent-color: var(--red); }

.verdict {
  font-weight: 700; font-size: 1.05rem; border-radius: 10px; padding: 14px 16px; margin: 12px 0;
}
.verdict.good { background: rgba(125, 232, 168, 0.10); border: 1px solid var(--green); color: #c9f5da; }
.verdict.bad { background: rgba(255, 122, 122, 0.10); border: 1px solid var(--red); color: #ffc9c9; }
.check-ok { color: var(--green); font-weight: 700; }
.check-bad { color: var(--red); font-weight: 700; }

.honesty { border-color: rgba(240, 179, 94, 0.35); }
.honesty h2 { color: var(--amber); }
.honesty ul { margin: 8px 0; padding-left: 20px; }
.honesty li { margin: 8px 0; color: var(--dim); font-size: 0.92rem; }
.honesty li strong { color: var(--ink); }
.honesty a { color: var(--teal); }

footer { max-width: 1020px; margin: 0 auto; padding: 24px 20px 60px; color: var(--dim); font-size: 0.88rem; }
footer a { color: var(--teal); }
footer .donate { margin: 8px 0; }
footer .dim { opacity: 0.75; }

@media (max-width: 640px) {
  h1 { font-size: 1.8rem; }
  .hrow { grid-template-columns: 96px 1fr 90px; }
}

/* Keyboard focus: a visible ring in this app's accent on every interactive element (fleet focus-visible pass). */
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

/* Skip link: the first Tab stop on the page — parked off-screen until keyboard focus reveals it (fleet skip-link pass). */
.skip-link { position: absolute; left: 12px; top: -64px; z-index: 1000; padding: 10px 16px; border: 2px solid var(--amber); border-radius: 8px; background: #0b0e14; color: var(--amber); font-weight: 700; text-decoration: none; transition: top .15s ease; }
.skip-link:focus-visible { top: 12px; }
main:focus { outline: none; }

/* Reduced motion: when the OS asks for reduced motion, animations and transitions finish near-instantly and scrolling is not smoothed (fleet reduced-motion pass). Near-zero durations — not animation: none — so fade-ins still land on their end state and no content can be stranded invisible. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}