/* PQB Explorer theme: the visual layer over style.css.
   Glass surfaces over a live WebGPU backdrop (vgpu), gradient hairlines, a cursor spotlight,
   display type with a moving sheen, and motion that switches off under prefers-reduced-motion. */

@property --angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }

:root {
  --ink: #f4f3ff;
  --glass: rgba(20, 24, 50, .78);
  --glass-2: rgba(30, 36, 70, .62);
  --hair: rgba(150, 170, 255, .16);
  --hair-hi: rgba(170, 188, 255, .42);
  --brand-1: #C4CCFE; --brand-2: #678BFF; --brand-3: #9DB4FF;
  --grad: linear-gradient(120deg, var(--brand-1), var(--brand-2) 45%, var(--brand-3));
  --radius: 16px;
  --font: "Inter var", Inter, ui-sans-serif, -apple-system, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

html { background: #0B0E1E; }
body {
  background: transparent;
  color: var(--ink);
  font-family: var(--font);
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  letter-spacing: -.005em;
}
::selection { background: rgba(103, 139, 255, .45); color: #fff; }

/* the GPU backdrop, and what shows without it */
#backdrop { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: -2; display: block; }
html.no-gpu body, html:not([data-fx]) body {
  background:
    radial-gradient(900px 520px at 72% -120px, rgba(103, 139, 255, .28), transparent 60%),
    radial-gradient(700px 480px at 8% 20%, rgba(196, 204, 254, .10), transparent 60%),
    #0B0E1E;
}
/* film grain */
body::after {
  content: ""; position: fixed; inset: -50%; z-index: -1; pointer-events: none; opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes grain { 0%, 100% { transform: translate(0, 0); } 20% { transform: translate(-3%, 2%); } 40% { transform: translate(2%, -3%); } 60% { transform: translate(-2%, -1%); } 80% { transform: translate(3%, 3%); } }

/* ── header: a floating glass bar ─────────────────────────────────────────────────────────── */
.top {
  position: sticky; top: 12px; z-index: 20; margin: 12px auto 0; max-width: 1280px; width: calc(100% - 24px);
  border: 1px solid var(--hair); border-bottom: 1px solid var(--hair); border-radius: 999px;
  background: rgba(14, 17, 38, .55); backdrop-filter: blur(18px) saturate(1.4); -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: 0 10px 40px rgba(0, 0, 0, .35), inset 0 1px 0 rgba(255, 255, 255, .05);
  padding: .5rem .6rem .5rem 1rem;
}
.top::after { content: ""; position: absolute; left: 24px; right: 24px; bottom: -1px; height: 1px; background: linear-gradient(90deg, transparent, var(--net), transparent); opacity: .7; }
.brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 750; letter-spacing: -.02em; }
.brand .logo-mark { filter: drop-shadow(0 0 10px rgba(103, 139, 255, .6)); }
.brand-name { font-size: 1.12rem; }
.nav a { color: #b7b5d9; font-weight: 550; padding: .35rem .7rem; border-radius: 999px; transition: background .2s, color .2s; }
.nav a:hover { color: #fff; background: rgba(255, 255, 255, .06); text-decoration: none; }
.search input { background: rgba(255, 255, 255, .04); border: 1px solid var(--hair); }
.search input:focus { outline: none; border-color: var(--hair-hi); box-shadow: 0 0 0 4px rgba(103, 139, 255, .15); }
.netsel select, .netsel button { border-radius: 999px; background: rgba(255, 255, 255, .04); border-color: var(--hair); }

/* ── surfaces: glass, gradient hairline, cursor spotlight ────────────────────────────────── */
.card, .stat, .tabs, .how3, .pq-hero, .empty, .tile {
  position: relative; isolation: isolate;
  background: linear-gradient(var(--glass), var(--glass)) padding-box,
              linear-gradient(135deg, var(--hair-hi), rgba(103, 139, 255, .08) 38%, rgba(196, 204, 254, .22)) border-box;
  border: 1px solid transparent;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .04) inset, 0 24px 60px -24px rgba(0, 0, 0, .6);
}
.glow::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: -1;
  background: radial-gradient(420px circle at var(--mx, -999px) var(--my, -999px), rgba(103, 139, 255, .16), transparent 60%);
  opacity: 0; transition: opacity .3s;
}
.glow:hover::before { opacity: 1; }
.stat { transition: transform .25s cubic-bezier(.2, .8, .2, 1), box-shadow .25s; }
.stat:hover { transform: translateY(-2px); box-shadow: 0 30px 60px -28px rgba(103, 139, 255, .45); }
.stat-value {
  background: linear-gradient(180deg, #fff, #DCE2FF); -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums; letter-spacing: -.02em;
}
.stat-accent .stat-value { background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.stat-label { color: #9d9bc6; font-weight: 600; }

/* ── display type ─────────────────────────────────────────────────────────────────────────── */
h1, h2, h3 { letter-spacing: -.025em; }
.display, .hero2 h1 { font-size: clamp(2.4rem, 5.2vw, 4.2rem); line-height: 1.02; font-weight: 800; letter-spacing: -.045em; }
.shine {
  background: linear-gradient(100deg, var(--brand-1) 0%, var(--brand-2) 30%, var(--brand-3) 50%, var(--brand-2) 70%, var(--brand-1) 100%);
  background-size: 250% 100%; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shine 7s ease-in-out infinite;
}
@keyframes shine { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.kicker { color: var(--brand-1); letter-spacing: .16em; }
.hero2 { margin-top: 2.2rem; }
.hero2 .lede { font-size: 1.15rem; line-height: 1.6; color: #c3c1e6; max-width: 640px; }

/* ── buttons ──────────────────────────────────────────────────────────────────────────────── */
button.primary {
  position: relative; overflow: hidden; display: inline-flex; align-items: center; gap: .45rem;
  background: linear-gradient(135deg, #7C9BFF, #4568F3 55%, #678BFF); border: 0; color: #fff; font-weight: 650;
  box-shadow: 0 10px 30px -10px rgba(103, 139, 255, .9), inset 0 1px 0 rgba(255, 255, 255, .25);
  transition: transform .2s, box-shadow .2s;
}
button.primary::after {
  content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .8s;
}
button.primary:hover { transform: translateY(-1px); box-shadow: 0 16px 36px -12px rgba(103, 139, 255, 1), inset 0 1px 0 rgba(255, 255, 255, .3); filter: none; }
button.primary:hover::after { transform: translateX(120%); }
.pill-link { background: rgba(103, 139, 255, .14); border-color: rgba(150, 170, 255, .4); display: inline-flex; align-items: center; gap: .35rem; transition: background .2s, transform .2s; }
.pill-link:hover { background: rgba(103, 139, 255, .28); transform: translateX(2px); }
.ico { vertical-align: -3px; }

.how-n { width: 2.6rem; height: 2.6rem; flex-basis: 2.6rem; border-radius: 12px; background: linear-gradient(135deg, rgba(103, 139, 255, .35), rgba(196, 204, 254, .18)); color: #E4E9F2; box-shadow: inset 0 0 0 1px var(--hair-hi), 0 8px 24px -8px rgba(103, 139, 255, .7); }
.how strong { font-size: 1.02rem; }

/* ── heroes on detail pages ───────────────────────────────────────────────────────────────── */
.pq-hero { background: linear-gradient(160deg, rgba(44, 62, 140, .38), rgba(18, 22, 46, .66) 42%) padding-box,
  linear-gradient(135deg, rgba(170, 188, 255, .5), rgba(196, 204, 254, .12) 45%, rgba(103, 139, 255, .35)) border-box; }
.pq-hero-bad { background: linear-gradient(160deg, rgba(160, 40, 70, .35), rgba(18, 22, 46, .66) 42%) padding-box, linear-gradient(135deg, rgba(255, 120, 140, .6), rgba(255, 92, 108, .1)) border-box; }
.pq-hero h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.035em; }
.pq-hero-icon { filter: drop-shadow(0 0 22px rgba(103, 139, 255, .65)); }
.pq-hero-icon.bad { filter: drop-shadow(0 0 22px rgba(255, 92, 108, .6)) hue-rotate(120deg); }
.ico-lock .shackle { transform-origin: 33px 21px; transition: transform .6s cubic-bezier(.3, 1.6, .5, 1); }
.ico-lock.is-open .shackle { animation: unlock 1.3s cubic-bezier(.3, 1.5, .5, 1) .35s both; }
@keyframes unlock { from { transform: none; } to { transform: translateY(-5px) rotate(-28deg); } }
h3.sect { color: #a9a6d6; letter-spacing: .14em; }

/* ── timeline ─────────────────────────────────────────────────────────────────────────────── */
.step-dot { width: 2.2rem; height: 2.2rem; box-shadow: 0 0 0 5px rgba(11, 14, 30, .6); }
.step-ok .step-dot { background: radial-gradient(circle at 35% 30%, rgba(126, 240, 192, .45), rgba(59, 204, 138, .15)); box-shadow: 0 0 0 5px rgba(11, 14, 30, .6), 0 0 22px rgba(59, 204, 138, .55); }
.step-warn .step-dot { box-shadow: 0 0 0 5px rgba(11, 14, 30, .6), 0 0 22px rgba(245, 176, 65, .55); }
.step-bad .step-dot { box-shadow: 0 0 0 5px rgba(11, 14, 30, .6), 0 0 22px rgba(255, 92, 108, .6); }
.step-line { top: 1.1rem; height: 2px; background: rgba(150, 170, 255, .15); overflow: hidden; }
.step-ok .step-line::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(126, 240, 192, .95), transparent); transform: translateX(-100%); animation: travel 2.4s ease-in-out infinite; }
@keyframes travel { to { transform: translateX(100%); } }

/* ── tabs ─────────────────────────────────────────────────────────────────────────────────── */
.tab-bar { gap: .3rem; padding: .5rem; border-bottom: 1px solid var(--hair); }
.tab { border: 0; border-radius: 10px; padding: .5rem .9rem; transition: background .2s, color .2s; }
.tab:hover { background: rgba(255, 255, 255, .05); }
.tab.active { color: #fff; background: linear-gradient(135deg, rgba(103, 139, 255, .35), rgba(196, 204, 254, .15)); box-shadow: inset 0 0 0 1px var(--hair-hi), 0 6px 18px -8px rgba(103, 139, 255, .8); }
.tab-count { background: rgba(255, 255, 255, .08); }

/* ── badges and verdicts ──────────────────────────────────────────────────────────────────── */
.b-pq { background: linear-gradient(135deg, rgba(103, 139, 255, .35), rgba(196, 204, 254, .18)); border-color: rgba(170, 188, 255, .55); color: #F1F4FF; font-weight: 650; box-shadow: 0 0 16px -4px rgba(103, 139, 255, .7); }
.b-qsb { box-shadow: 0 0 16px -6px rgba(196, 204, 254, .7); }
.verdicts li { background: rgba(14, 17, 38, .55); border: 1px solid rgba(255, 255, 255, .04); border-left-width: 3px; }

/* ── block cubes: 3D ──────────────────────────────────────────────────────────────────────── */
.blocks { perspective: 900px; padding: 1rem .2rem 1.4rem; }
.cube {
  transform: rotateX(10deg) rotateY(-16deg); transform-style: preserve-3d;
  background: linear-gradient(155deg, #5F7FF5 0%, #3A4FB8 45%, #212647 100%);
  box-shadow: 10px 12px 0 -2px rgba(24, 30, 72, .85), 0 22px 40px -12px rgba(0, 0, 0, .7), inset 0 1px 0 rgba(255, 255, 255, .25);
  border: 1px solid rgba(180, 196, 255, .35); transition: transform .35s cubic-bezier(.2, .8, .2, 1), box-shadow .35s;
}
.cube:hover { transform: rotateX(0) rotateY(0) translateY(-4px); box-shadow: 0 22px 44px -10px rgba(103, 139, 255, .75), inset 0 1px 0 rgba(255, 255, 255, .3); filter: none; }
.cube .c-h { color: #fff; font-size: 1.15rem; letter-spacing: -.02em; }
.cube-hit { background: linear-gradient(155deg, #9DB4FF, #4568F3 60%, #3350C8); box-shadow: 10px 12px 0 -2px rgba(20, 60, 120, .85), 0 0 36px rgba(196, 204, 254, .55); }
.cube-none { background: linear-gradient(155deg, #2C365F, #212647); }

/* ── tables ───────────────────────────────────────────────────────────────────────────────── */
.tbl th { color: #9896c4; }
.tbl td { border-bottom-color: rgba(150, 170, 255, .08); }
.tbl tbody tr { transition: background .2s; }
.tbl tbody tr:hover td { background: rgba(103, 139, 255, .06); }
.idchip { background: rgba(255, 255, 255, .05); border-color: var(--hair); }

/* ── flowchart: flowing edges ─────────────────────────────────────────────────────────────── */
@keyframes flow { to { stroke-dashoffset: -11; } }
.decomp { background: rgba(11, 14, 30, .6); border: 1px solid var(--hair); }

/* ── motion ───────────────────────────────────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(16px) scale(.995); transition: opacity .7s cubic-bezier(.2, .8, .2, 1) var(--d, 0ms), transform .7s cubic-bezier(.2, .8, .2, 1) var(--d, 0ms); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ── footer ───────────────────────────────────────────────────────────────────────────────── */
.foot { border-top: 1px solid var(--hair); color: #8e8cb8; }

/* ── scrollbar ────────────────────────────────────────────────────────────────────────────── */
* { scrollbar-width: thin; scrollbar-color: rgba(103, 139, 255, .45) transparent; }

/* ── polish pass ───────────────────────────────────────────────────────────────────────────── */

/* header */
.top { gap: 1rem; padding: .45rem .55rem .45rem 1.1rem; }
.nav { gap: .15rem; }
.nav a { position: relative; font-size: .93rem; }
.nav a.active { color: #fff; background: rgba(103, 139, 255, .16); }
.nav a.active::after { content: ""; position: absolute; left: 30%; right: 30%; bottom: 2px; height: 2px; border-radius: 2px; background: #678BFF; }
.search { position: relative; display: flex; align-items: center; }
.search-ico { position: absolute; left: .85rem; color: #8e97c8; display: flex; pointer-events: none; }
.search input { padding-left: 2.45rem; padding-right: 2.2rem; height: 2.4rem; font-family: var(--font); font-size: .9rem; }
.search-kbd { position: absolute; right: .7rem; font: 600 .72rem var(--mono); color: #8e97c8; border: 1px solid var(--hair); border-radius: 5px; padding: 0 .35rem; pointer-events: none; }
.search input:focus + .search-kbd { display: none; }
.netsel { position: relative; display: flex; align-items: center; gap: .45rem; padding: 0 .35rem 0 .8rem; height: 2.4rem; border: 1px solid var(--hair); border-radius: 999px; background: rgba(255, 255, 255, .04); cursor: pointer; }
.netsel select { border: 0; background: transparent; padding: 0 .3rem 0 0; height: 100%; font-weight: 600; cursor: pointer; }
.net-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--net); box-shadow: 0 0 0 3px color-mix(in srgb, var(--net) 25%, transparent); }
.top::after { background: linear-gradient(90deg, transparent, rgba(103, 139, 255, .6), transparent); }
.foot button.link { font-size: inherit; }

/* 1. latest blocks: flat, readable, never overlapping */
.blocks { perspective: none; padding: .6rem .2rem 1rem; gap: .9rem; }
.cube {
  transform: none; flex: 0 0 144px; border-radius: 14px;
  background: linear-gradient(160deg, #3b4fae 0%, #2a3680 55%, #1d2459 100%);
  box-shadow: 6px 6px 0 -1px rgba(20, 26, 64, .95), inset 0 1px 0 rgba(255, 255, 255, .18);
  border: 1px solid rgba(157, 180, 255, .28);
}
.cube:hover { transform: translateY(-3px); box-shadow: 6px 9px 0 -1px rgba(20, 26, 64, .95), inset 0 1px 0 rgba(255, 255, 255, .22); background: linear-gradient(160deg, #4760c4 0%, #2f3c8e 55%, #1f2760 100%); }
.cube .c-h { font-size: 1.1rem; }
.cube-hit { background: linear-gradient(160deg, #678BFF, #4568F3 60%, #2f47b8); box-shadow: 6px 6px 0 -1px rgba(20, 30, 80, .95), 0 0 0 1px rgba(196, 204, 254, .7); }

/* 2. timeline: markers fully visible, clean rings */
.steps { padding: 8px 4px 4px; }
.step-dot { width: 2.1rem; height: 2.1rem; border-width: 2px; box-shadow: none; font-size: .95rem; }
.step-ok .step-dot { background: rgba(59, 204, 138, .14); box-shadow: 0 0 14px rgba(59, 204, 138, .28); }
.step-warn .step-dot { background: rgba(245, 176, 65, .14); box-shadow: 0 0 14px rgba(245, 176, 65, .28); }
.step-bad .step-dot { background: rgba(255, 92, 108, .16); box-shadow: 0 0 14px rgba(255, 92, 108, .3); }
.step-idle .step-dot { box-shadow: none; }
.step-line { top: calc(8px + 1.05rem); left: 2.35rem; }

/* 3–4. health: modern rows and a real toggle */
.health .verdicts { gap: .6rem; }
.verdicts li {
  display: grid; grid-template-columns: 2rem 1fr; align-items: start; gap: .8rem;
  padding: .85rem 1rem; border-radius: 12px; border: 1px solid rgba(150, 170, 255, .1); border-left-width: 1px !important;
  background: linear-gradient(135deg, rgba(34, 42, 86, .7), rgba(22, 26, 52, .7));
}
.verdicts li .v-icon { width: 2rem; height: 2rem; border-radius: 9px; display: grid; place-items: center; font-size: .85rem; }
.v-critical .v-icon { background: rgba(255, 92, 108, .16); } .v-warn .v-icon { background: rgba(245, 176, 65, .16); }
.v-ok .v-icon { background: rgba(59, 204, 138, .14); } .v-info .v-icon { background: rgba(103, 139, 255, .16); color: #9DB4FF; }
.v-critical { background: linear-gradient(135deg, rgba(120, 36, 64, .45), rgba(28, 24, 52, .7)) !important; border-color: rgba(255, 92, 108, .35) !important; }
.v-warn { border-color: rgba(245, 176, 65, .3) !important; }
.v-title { font-weight: 650; color: #F1F4FF; }
.v-detail { color: #aeb5d8; line-height: 1.5; margin-top: .15rem; }
.verdicts li .v-code { justify-self: end; font: 600 .7rem var(--mono); color: #9DB4FF; background: rgba(103, 139, 255, .12); border: 1px solid rgba(103, 139, 255, .25); border-radius: 6px; padding: .1rem .4rem; }
.health-bar { gap: .45rem; }
.hb { border-radius: 8px; padding: .25rem .7rem; font-size: .8rem; background: rgba(255, 255, 255, .04); }
.health-more > summary, details.more > summary {
  list-style: none; display: inline-flex; align-items: center; gap: .5rem; cursor: pointer; user-select: none;
  margin-top: .7rem; padding: .45rem .85rem; border-radius: 10px; font-size: .88rem; font-weight: 600; color: #DCE2FF;
  background: rgba(103, 139, 255, .1); border: 1px solid rgba(103, 139, 255, .25); transition: background .2s, border-color .2s;
}
.health-more > summary::-webkit-details-marker, details.more > summary::-webkit-details-marker { display: none; }
.health-more > summary::before, details.more > summary::before { content: ""; width: 7px; height: 7px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform .2s; margin-right: .1rem; }
.health-more[open] > summary::before, details.more[open] > summary::before { transform: rotate(45deg); }
.health-more > summary:hover, details.more > summary:hover { background: rgba(103, 139, 255, .18); border-color: rgba(103, 139, 255, .45); }
.health-more[open] > .verdicts { margin-top: .7rem; }

/* 6. more fields: a tidy grid of cells */
details.more .kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: .6rem; margin-top: .8rem; }
details.more .kv dt { display: none; }
details.more .kv dd { margin: 0; padding: .7rem .9rem; border-radius: 12px; background: rgba(14, 17, 38, .55); border: 1px solid rgba(150, 170, 255, .1); }
details.more .kv dd::before { content: attr(data-k); display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: #9DA4CE; font-weight: 600; margin-bottom: .2rem; }

/* 5. flowchart: the new look */

/* 7. tooltips */
.term { border-bottom: 1px dashed rgba(157, 180, 255, .6); cursor: help; }
.tip {
  position: absolute; z-index: 50; pointer-events: none; opacity: 0; transform: translateY(4px); transition: opacity .15s, transform .15s;
  padding: .7rem .9rem; border-radius: 12px; font-size: .84rem; line-height: 1.5; color: #E4E9F2;
  background: linear-gradient(160deg, rgba(40, 50, 100, .96), rgba(24, 29, 60, .97)); border: 1px solid rgba(157, 180, 255, .3);
 box-shadow: 0 18px 40px -16px rgba(0, 0, 0, .7);
}
.tip.on { opacity: 1; transform: none; }
.blocks { display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); overflow: visible; }
.cube { flex: none; min-width: 0; }

/* callout (a known deployment, a note) */
.callout { margin: 1rem 0 .4rem; padding: .9rem 1.1rem; border-radius: 12px; background: rgba(103, 139, 255, .1); border: 1px solid rgba(103, 139, 255, .3); color: #dce2ff; line-height: 1.55; }
.callout-title { font-weight: 700; color: #fff; margin-bottom: .2rem; }

/* what the lock checks */
.reqs { display: grid; gap: 1rem; }
.req-stage { padding: 1rem 1.1rem; border-radius: 14px; background: rgba(14, 17, 38, .5); border: 1px solid rgba(150, 170, 255, .12); }
.req-head { display: block; margin-bottom: .7rem; }
.req-head strong { font-size: 1rem; }
.req-n { font: 700 .8rem var(--mono); color: #678BFF; }
.req-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.req-list li { position: relative; padding: .6rem .8rem .6rem 1.6rem; border-radius: 10px; background: rgba(34, 42, 86, .45); }
.req-list li::before { content: ""; position: absolute; left: .7rem; top: 1rem; width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 7px solid #678BFF; }
.req-list li.req-data { background: rgba(22, 27, 58, .5); }
.req-list li.req-data::before { border-bottom-color: #5a6390; }
.req-title { font-weight: 650; color: #F1F4FF; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.req-body { color: #c6cbe8; margin: .15rem 0 .2rem; line-height: 1.5; }

/* raw script: all of it */
.raw-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .6rem; }
.copybtn-lg { display: inline-flex; align-items: center; gap: .35rem; padding: .35rem .7rem; border-radius: 8px; background: rgba(103, 139, 255, .12); border: 1px solid rgba(103, 139, 255, .3); color: #dce2ff; font-size: .85rem; }
.rawhex { margin: 0; padding: 1rem; border-radius: 12px; background: rgba(11, 14, 30, .6); border: 1px solid rgba(150, 170, 255, .12); white-space: pre-wrap; word-break: break-all; font-size: .78rem; line-height: 1.6; color: #c6cbe8; max-height: 520px; overflow: auto; }
.lock-hero .stats { margin-top: 1.2rem; }
/* the old yellow "known" box */
.known { border: 0; }

/* transaction flow */
.txflow-wrap { margin: .4rem 0 1.2rem; padding: 1rem 1.2rem; border-radius: 16px; background: radial-gradient(600px 200px at 50% 50%, rgba(103, 139, 255, .08), transparent 70%), rgba(11, 14, 30, .45); border: 1px solid rgba(150, 170, 255, .1); }
.txflow { width: 100%; height: auto; display: block; overflow: visible; }
.txflow .tf-band { transition: opacity .25s; }
.txflow .tf-node { fill: #AEB8E6; } .txflow .tf-pq .tf-node { fill: #678BFF; } .txflow .tf-fee .tf-node { fill: #f5b041; }
.txflow:has(.tf-item:hover) .tf-item:not(:hover) .tf-band { opacity: .35; }
.txflow a { cursor: pointer; }
.txflow .tf-bar { filter: drop-shadow(0 0 10px rgba(103, 139, 255, .55)); }
.txflow .tf-label { fill: #F1F4FF; font: 600 13px var(--font); }
.txflow .tf-sub { fill: #9DB4FF; font: 600 11px var(--font); }
.txflow .tf-value { fill: #9DA4CE; font: 500 11.5px var(--mono); }

/* how it works */
.learn-hero { margin: 2.4rem 0 2rem; max-width: 900px; }
.learn-hero .lede { font-size: 1.15rem; line-height: 1.65; color: #c6cbe8; max-width: 760px; }
.chapter { display: grid; grid-template-columns: 1fr 1.05fr; gap: 2.4rem; align-items: center; margin: 0 0 1.4rem; padding: 1.8rem 2rem; border-radius: 20px;
  background: linear-gradient(var(--glass), var(--glass)) padding-box, linear-gradient(135deg, var(--hair-hi), rgba(103, 139, 255, .06) 45%, rgba(196, 204, 254, .18)) border-box;
  border: 1px solid transparent; }
.chapter:nth-of-type(even) .ch-art { order: -1; }
@media (max-width: 900px) { .chapter { grid-template-columns: 1fr; } .chapter:nth-of-type(even) .ch-art { order: 0; } }
.ch-n { font: 700 .85rem var(--mono); color: #678BFF; letter-spacing: .1em; margin-bottom: .3rem; }
.chapter h2 { font-size: 1.7rem; margin: 0 0 .3rem; letter-spacing: -.03em; }
.ch-lead { font-size: 1.05rem; color: #C4CCFE; margin: 0 0 .8rem; font-weight: 600; }
.ch-text p { color: #c6cbe8; line-height: 1.65; }
.ch-art { padding: 1rem; border-radius: 16px; background: rgba(11, 14, 30, .55); border: 1px solid rgba(150, 170, 255, .1); }
.ill { width: 100%; height: auto; display: block; }
.ill .ill-box { fill: rgba(44, 54, 95, .8); stroke: rgba(150, 170, 255, .3); }
.ill .ill-box-accent { fill: rgba(103, 139, 255, .22); stroke: #678BFF; }
.ill .ill-box-ok { fill: rgba(59, 204, 138, .12); stroke: rgba(59, 204, 138, .6); }
.ill .ill-box-bad { fill: rgba(255, 92, 108, .12); stroke: rgba(255, 92, 108, .6); }
.ill .ill-t { fill: #F1F4FF; font-weight: 650; }
.ill .ill-s { fill: #9DA4CE; }
.ill .ill-ok { fill: #6fe0ae; font-weight: 600; } .ill .ill-bad { fill: #ff8f9c; font-weight: 600; }
.ill .ill-arrow, .ill .ill-arrow-ok, .ill .ill-arrow-bad { fill: none; stroke-width: 2; stroke-dasharray: 5 5; animation: flow 2.4s linear infinite; }
.ill .ill-arrow { stroke: rgba(157, 180, 255, .7); } .ill .ill-arrow-ok { stroke: rgba(59, 204, 138, .7); } .ill .ill-arrow-bad { stroke: rgba(255, 92, 108, .7); }
.ill .ill-cell { fill: rgba(44, 54, 95, .7); stroke: rgba(150, 170, 255, .18); }
.ill .ill-cell-lit { fill: #678BFF; stroke: #C4CCFE; animation: cellpulse 3.2s ease-in-out infinite; }
@keyframes cellpulse { 50% { fill: #8FA8FF; } }
.ill .ill-byte { fill: rgba(44, 54, 95, .7); stroke: rgba(150, 170, 255, .2); }
.ill .ill-byte-lit { fill: rgba(103, 139, 255, .35); stroke: #678BFF; }
.ill .ill-mono { fill: #dce2ff; }
.chapter-two { grid-template-columns: 1fr; }
.two-designs { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 760px) { .two-designs { grid-template-columns: 1fr; } }
.design { padding: 1.1rem 1.2rem; border-radius: 14px; background: rgba(11, 14, 30, .5); border: 1px solid rgba(150, 170, 255, .12); }
.design h3 { margin: .5rem 0 .3rem; font-size: 1.1rem; }
.design p { color: #c6cbe8; line-height: 1.6; margin: 0; }
.features3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; }
.features3 p { color: #aeb5d8; line-height: 1.55; margin: .3rem 0 0; }
.glossary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: .7rem; }
.gl-item { padding: .8rem 1rem; border-radius: 12px; background: rgba(11, 14, 30, .45); border: 1px solid rgba(150, 170, 255, .1); }
.gl-term { font-weight: 700; color: #F1F4FF; text-transform: capitalize; margin-bottom: .2rem; }
.gl-def { color: #aeb5d8; font-size: .9rem; line-height: 1.55; }
.foot { display: none; }
.details-grid .kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: .6rem; }
.details-grid .kv dt { display: none; }
.details-grid .kv dd { margin: 0; padding: .7rem .9rem; border-radius: 12px; background: rgba(14, 17, 38, .55); border: 1px solid rgba(150, 170, 255, .1); word-break: break-word; }
.details-grid .kv dd::before { content: attr(data-k); display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: #9DA4CE; font-weight: 600; margin-bottom: .2rem; }
.tx-summary { padding: .6rem; }
.tx-summary .stats { margin: 0; }
.tx-summary .stat { background: rgba(14, 17, 38, .45); }

/* pills: one style for "see how it was unlocked" and "locked", optically centered */
.pill-link { display: inline-flex; align-items: center; gap: .4rem; line-height: 1; padding: .5rem .85rem .46rem; border-radius: 10px; font-weight: 600; font-size: .86rem; }
.pill-link .ico, .pill-link svg { display: block; flex: none; }
.pill-locked { background: rgba(196, 204, 254, .08); border-color: rgba(196, 204, 254, .3); color: #E4E9F2; }
.pill-locked:hover { background: rgba(196, 204, 254, .16); }

/* 4. hero backgrounds: gradients of fixed length, so a long tab never changes their tone */
.pq-hero { background: linear-gradient(160deg, rgba(44, 62, 140, .46), rgba(24, 30, 64, .72) 760px) padding-box,
  linear-gradient(135deg, rgba(170, 188, 255, .5), rgba(196, 204, 254, .12) 520px, rgba(103, 139, 255, .3)) border-box; }
.pq-hero-bad { background: linear-gradient(160deg, rgba(160, 40, 70, .38), rgba(24, 30, 64, .72) 760px) padding-box, linear-gradient(135deg, rgba(255, 120, 140, .6), rgba(255, 92, 108, .1) 520px) border-box; }
.card, .tabs, .how3, .chapter { background-size: 100% 100%; }

/* 5. motion when things change */
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.tab-panel:not([hidden]) { animation: fadeUp .28s cubic-bezier(.2, .8, .2, 1); }
details[open] > :not(summary) { animation: fadeUp .25s cubic-bezier(.2, .8, .2, 1); }
.tr-op, .stack { animation: fadeIn .18s ease-out; }
.tab { transition: background .25s, color .25s, box-shadow .25s; }
#page > * { animation: fadeIn .3s ease-out; }
.stat-value, .hb, .badge { transition: color .3s, background .3s; }
.tip { transition: opacity .15s, transform .18s cubic-bezier(.2, .8, .2, 1); }
.secbar .seg { transition: filter .2s, transform .2s; }
.secbar .seg:hover, .secbar .seg:focus { filter: brightness(1.25); outline: none; }

/* 6. script breakdown */
.secbar { height: 38px; border-radius: 10px; gap: 2px; background: rgba(11, 14, 30, .5); padding: 2px; }
.secbar .seg { border-radius: 7px; border-right: 0; cursor: help; }
.secbar .seg span { font-size: .74rem; font-weight: 600; }
.seg0 { background: linear-gradient(135deg, #5F7FF5, #3A4FB8); } .seg1 { background: linear-gradient(135deg, #3f5aa8, #2C365F); }
.seg2 { background: linear-gradient(135deg, #7C9BFF, #4568F3); } .seg3 { background: linear-gradient(135deg, #4a5d9e, #313d70); }
.seg4 { background: linear-gradient(135deg, #8FA8FF, #5F7FF5); } .seg5 { background: linear-gradient(135deg, #3a4a86, #262f5c); }
.seclegend { display: flex; flex-wrap: wrap; gap: .45rem .9rem; margin: .7rem 0 .2rem; }
.leg { display: inline-flex; align-items: center; gap: .4rem; font-size: .84rem; color: #dce2ff; cursor: help; padding: .15rem .3rem; border-radius: 6px; }
.leg:hover, .leg:focus { background: rgba(103, 139, 255, .12); outline: none; }
.leg-dot { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.secnotes { display: none; }
@media (prefers-reduced-motion: reduce) { .tab-panel:not([hidden]), details[open] > :not(summary), .tr-op, .stack, #page > * { animation: none; } }

/* look it up */
.lookup { display: grid; gap: .5rem; margin-bottom: 1rem; }
.lk-row { display: grid; grid-template-columns: 170px 1fr; gap: .1rem 1rem; padding: .7rem .9rem; border-radius: 12px; background: rgba(14, 17, 38, .55); border: 1px solid rgba(150, 170, 255, .1); }
.lk-k { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: #9DA4CE; font-weight: 600; align-self: center; }
.lk-v { word-break: break-all; color: #F1F4FF; font-size: .84rem; }
.lk-n { grid-column: 2; color: #9DA4CE; font-size: .8rem; }
@media (max-width: 700px) { .lk-row { grid-template-columns: 1fr; } .lk-n { grid-column: 1; } }
.amt { white-space: nowrap; }
.amt-unit { color: #9DA4CE; font-size: .85em; }
.usd { color: #9DB4FF; font-size: .85em; margin-left: .15rem; font-variant-numeric: tabular-nums; }
.hero-usd { color: #C4CCFE; font-size: 1rem; margin: -.1rem 0 .4rem; font-weight: 600; }
.hero-usd-inline { color: #C4CCFE; font-size: .6em; font-weight: 600; margin-left: .3rem; }

/* intro lines above a panel's content keep their distance from it */
.panel-lede, .tab-panel > p.small:first-child, .card > p.muted.small:first-child { margin: 0 0 1.1rem; }

/* "What unlocking requires": a centred row of step cards, each clearly its own */
h3.sect-center { text-align: center; }
.steps { justify-content: center; gap: .9rem; padding: 4px; overflow: visible; }
.step { align-items: center; text-align: center; padding: 1rem .9rem .9rem; max-width: 230px; min-width: 0; flex: 1 1 0;
  border-radius: 12px; background: rgba(44, 54, 95, .45); border: 1px solid rgba(150, 170, 255, .12); }
.step-body { margin-top: .6rem; }
.step-title { font-size: .95rem; }
.step-sub { margin-top: .25rem; line-height: 1.4; font-size: .8rem; }
.step-line { display: none; }

.step-title a { color: inherit; text-decoration: none; border-bottom: 1px dashed rgba(196, 204, 254, .5); }
.step-title a:hover { color: #C4CCFE; border-bottom-color: #C4CCFE; }

/* How it works illustrations */
.ill .ill-arrow, .ill .ill-arrow-ok, .ill .ill-arrow-bad { animation-name: ill-flow; }
@keyframes ill-flow { to { stroke-dashoffset: -20; } }   /* two dash periods of 5+5: seamless */
.ill .ill-r0 { fill: #678BFF; stroke: #C4CCFE; } .ill .ill-r1 { fill: #C4CCFE; stroke: #fff; }
.ill .ill-b-hdr { fill: rgba(59, 204, 138, .22); stroke: rgba(59, 204, 138, .8); }
.ill .ill-b-shdr { fill: rgba(245, 176, 65, .22); stroke: rgba(245, 176, 65, .85); animation: ill-glow 2.4s ease-in-out infinite; }
.ill .ill-b-r, .ill .ill-b-s { fill: rgba(44, 54, 95, .7); stroke: rgba(150, 170, 255, .22); }
.ill .ill-b-ht { fill: rgba(44, 54, 95, .45); stroke: rgba(150, 170, 255, .15); stroke-dasharray: 3 2; }
.ill .ill-brace { fill: none; stroke-width: 1.2; stroke: rgba(157, 164, 206, .6); }
.ill .ill-brace.ill-ok { stroke: rgba(59, 204, 138, .8); } .ill .ill-brace.ill-warn { stroke: rgba(245, 176, 65, .85); }
.ill .ill-warn { fill: #f5b041; font-weight: 600; }
@keyframes ill-glow { 50% { fill: rgba(245, 176, 65, .45); } }
@media (prefers-reduced-motion: reduce) { .ill .ill-b-shdr, .ill .ill-arrow, .ill .ill-arrow-ok, .ill .ill-arrow-bad { animation: none; } }

/* What it checks: a purpose line per stage, and the instructions behind each check */
.req-purpose { margin: .25rem 0 0; font-size: .86rem; line-height: 1.45; color: #b9c0e3; max-width: 90ch; }
.req-code { display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem; margin-top: .35rem; font-size: .76rem; }
.req-code > span:first-child { text-transform: uppercase; letter-spacing: .06em; font-size: .66rem; font-weight: 700; color: #7d84b0; }
.req-code code { color: #C4CCFE; }
.req-body { line-height: 1.5; }

/* footer: the niche tools, small, and who made it */
.foot { max-width: 1240px; margin: 3rem auto 1.5rem; padding: 1.2rem 1rem 0; border-top: 1px solid rgba(150, 170, 255, .1); display: flex; flex-wrap: wrap; justify-content: space-between; gap: .8rem 2rem; font-size: .82rem; color: #8d94c0; }
.foot-tools { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; }
.foot a { color: #b9c0e3; text-decoration: none; }
.foot a:hover { color: #fff; }
.foot-by a { color: #C4CCFE; font-weight: 600; }

.tbl.coins td { vertical-align: middle; }
.hero-tx { display: block; margin-top: .15rem; }
.hero-tx a { color: #C4CCFE; }

/* inputs & outputs: a panel per side, so each is plainly one transaction's coins */
.io-col { background: rgba(22, 27, 58, .5); border: 1px solid rgba(150, 170, 255, .1); border-radius: 12px; padding: .65rem .8rem .4rem; }
.io-kicker { color: #C4CCFE; }
.io-n, .io-src { color: #8d94c0; }
.io-src a { color: #9DB4FF; }
.io-arrow { background: rgba(44, 54, 95, .65); border: 1px solid rgba(150, 170, 255, .18); color: #C4CCFE; }

/* narrow screens: wide tables scroll inside their card, long ids wrap, nothing pushes the page wider */
.card, .pq-hero { overflow: hidden; }
main, section, .card { min-width: 0; }
.stat-sub, .io, .hero-tx { overflow-wrap: anywhere; }
@media (max-width: 760px) {
  .tbl { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tbl td, .tbl th { white-space: nowrap; }
  .tbl td.what, .tbl td.what * { white-space: normal; min-width: 240px; }
  .txids { padding-left: 1.6rem; }
  .grid2 { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .io { grid-template-columns: 1fr !important; }
  .io > * { min-width: 0; }
  .io-col { overflow-x: auto; }
  .stat-sub, .stat-sub .amt { white-space: normal; }
  .idline, .idline * { overflow-wrap: anywhere; word-break: break-all; }
}

[hidden] { display: none !important; }

/* step cards with an arrow between each pair, centred in the gap */
.steps { align-items: stretch; gap: .5rem; }
.step-arrow { list-style: none; flex: none; align-self: center; color: #7d84b0; font-size: 1rem; line-height: 1; }
@media (max-width: 760px) {
  .steps { flex-direction: column; align-items: stretch; gap: .35rem; }
  .step { max-width: none; flex-direction: row; text-align: left; align-items: center; gap: .8rem; padding: .7rem .8rem; }
  .step-body { margin-top: 0; }
  .step-arrow { align-self: center; transform: rotate(90deg); }
}

/* ── Phones ─────────────────────────────────────────────────────────────────────────────────── */
.tfm, .iom { display: none; }
@media (max-width: 760px) {
  /* header: one compact row (logo, How it works, network), search below; scrolls away with the page */
  .top { position: relative; top: 0; margin: 8px auto 0; width: calc(100% - 16px); border-radius: 18px; padding: .5rem .6rem;
    display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav net" "search search search"; gap: .5rem .4rem; align-items: center; }
  .top::after { left: 16px; right: 16px; }
  .brand { grid-area: brand; } .brand-name { font-size: 1rem; }
  .nav { grid-area: nav; justify-self: end; } .nav a { font-size: .85rem; padding: .3rem .55rem; }
  .netsel { grid-area: net; height: 2.1rem; padding: 0 .2rem 0 .6rem; }
  .netsel select { font-size: .85rem; max-width: 7.5rem; }
  .search { grid-area: search; min-width: 0; }
  .search-kbd { display: none; }
  .search input { height: 2.3rem; font-size: 16px; }             /* 16px: iOS doesn't zoom on focus */
  main, #page { padding-left: 12px; padding-right: 12px; }
  .card { padding: 1rem .9rem; border-radius: 16px; }
  h1 { font-size: 1.6rem; overflow-wrap: anywhere; }
  .display { font-size: 2.3rem !important; }

  /* 1fr floors at min-content, so a long figure pushed the second column off screen */
  .stats { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important; gap: .5rem; }
  .stat { padding: .7rem .75rem; } .stat-value { font-size: 1.15rem; }

  /* flow: stacked rows instead of the wide diagram */
  .txflow-wrap:not(.txflow-c) { display: none; }
  .txflow-c { padding: .6rem .5rem; }
  .tfm-head { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: #8d94c0; font-weight: 700; margin-top: .2rem; }
  .tfm-row { display: grid; gap: .3rem; padding: .55rem .65rem; border-radius: 10px; background: rgba(22, 27, 58, .6); color: inherit; text-decoration: none; }
  .tfm-top { display: flex; justify-content: space-between; gap: .6rem; align-items: baseline; }
  .tfm-label { font-family: var(--mono); font-size: .8rem; color: #dce2f7; min-width: 0; overflow-wrap: anywhere; }
  .tfm-sub { font-family: var(--font); font-size: .72rem; color: #9DB4FF; }
  .tfm-amt { font-family: var(--mono); font-size: .8rem; color: #E4E9F2; white-space: nowrap; text-align: right; }
  .tfm-amt .usd { display: block; font-size: .72rem; color: #9DA4CE; }
  .tfm-bar { display: block; height: 4px; border-radius: 3px; background: #AEB8E6; opacity: .55; }
  .tfm-bar.tfm-pq { background: #678BFF; opacity: 1; } .tfm-bar.tfm-fee { background: #f5b041; opacity: .9; }
  .tfm-mid { display: flex; align-items: center; gap: .6rem; margin: .3rem 0; font-size: .75rem; color: #C4CCFE; }
  .tfm-mid i { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, rgba(157, 180, 255, .5), transparent); }

  /* inputs & outputs: address on one line, amount under it */
  .io .tbl, .io .tbl tbody { display: block; }
  .io .tbl tr { display: grid; grid-template-columns: 1.4rem 1fr; gap: 0 .3rem; padding: .45rem 0; border-bottom: 1px solid rgba(150, 170, 255, .08); }
  .io .tbl td { white-space: normal; padding: 0; border: 0; min-width: 0; overflow-wrap: anywhere; }
  .io .tbl td.num:last-child { grid-column: 2; text-align: left; }
  .io-arrow { margin: .2rem auto; }

  /* hero cards (lock / spend): icon above the text, full width */
  .pq-hero { padding: 1rem .9rem; }
  .pq-hero-head { flex-direction: column; gap: .5rem; }
  .pq-hero-icon svg { width: 36px; height: 36px; }
  .pq-hero h2 { font-size: 1.45rem; }
  .pq-hero-kicker { overflow-wrap: anywhere; }
}
@media (max-width: 760px) { .nav a { white-space: nowrap; } }
@media (max-width: 760px) {
  /* stages: one stacked card per check instead of a wide table */
  .tbl.stages { display: block; overflow: visible; }
  .tbl.stages thead { display: none; }
  .tbl.stages tbody { display: grid; gap: .6rem; }
  .tbl.stages tr { display: grid; grid-template-columns: 1fr auto; gap: .35rem .6rem; padding: .7rem .75rem; border-radius: 12px; background: rgba(22, 27, 58, .55); }
  .tbl.stages td { display: block; padding: 0; border: 0; white-space: normal; min-width: 0; overflow-wrap: anywhere; }
  .tbl.stages td.what, .tbl.stages td.what * { min-width: 0; white-space: normal; }
  .tbl.stages td:nth-child(1) { grid-column: 1; }
  .tbl.stages td:nth-child(6) { grid-column: 2; grid-row: 1; justify-self: end; }
  .tbl.stages td:nth-child(n+2):nth-child(-n+5) { grid-column: 1 / -1; }
  .tbl.stages td.num { text-align: left; }
  /* the tab bar scrolls sideways: fade its right edge so that's visible */
  .tab-bar { overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent); mask-image: linear-gradient(90deg, #000 85%, transparent); }
  .tab-bar::-webkit-scrollbar { display: none; }
  .tab { white-space: nowrap; flex: none; }
}
@media (max-width: 760px) { .chapter { padding: 1.1rem .9rem; gap: 1rem; border-radius: 16px; } .learn-hero { padding-left: 4px; padding-right: 4px; } }
@media (max-width: 760px) {
  .tbl.stages td:nth-child(4)::before { content: "Transaction digest"; }
  .tbl.stages td:nth-child(5)::before { content: "FindAndDelete"; }
  .tbl.stages td:nth-child(4)::before, .tbl.stages td:nth-child(5)::before { display: block; font-size: .64rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: #7d84b0; margin-bottom: .1rem; }

  /* home UTXO table: a card per UTXO */
  .tbl.coins { display: block; overflow: visible; }
  .tbl.coins thead { display: none; }
  .tbl.coins tbody { display: grid; gap: .6rem; }
  .tbl.coins tr { display: grid; grid-template-columns: 1fr auto; gap: .45rem .7rem; padding: .75rem .8rem; border-radius: 12px; background: rgba(22, 27, 58, .6); }
  .tbl.coins td { display: block; padding: 0; border: 0; white-space: normal; min-width: 0; }
  .tbl.coins td:nth-child(1) { grid-column: 1 / -1; }
  .tbl.coins td:nth-child(2) { grid-column: 1 / -1; text-align: left; font-size: .95rem; }
  .tbl.coins td:nth-child(3)::before { content: "Funded"; } .tbl.coins td:nth-child(4)::before { content: "Spent"; }
  .tbl.coins td:nth-child(3)::before, .tbl.coins td:nth-child(4)::before { display: block; font-size: .64rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: #7d84b0; }
  .tbl.coins td:nth-child(5) { grid-column: 1 / -1; }
  .tbl.coins td:nth-child(5) .pill-link { width: 100%; justify-content: center; padding: .65rem; }
  .tbl.coins .sub { display: flex; flex-wrap: wrap; gap: .35rem; }

  /* compare: each row a small card, both schemes labelled */
  .tbl.compare { display: block; overflow: visible; }
  .tbl.compare thead { display: none; }
  .tbl.compare tbody { display: grid; gap: .5rem; }
  .tbl.compare tr { display: grid; grid-template-columns: 1fr 1fr; gap: .3rem .6rem; padding: .65rem .7rem; border-radius: 12px; background: rgba(22, 27, 58, .55); }
  .tbl.compare th, .tbl.compare td { display: block; padding: 0; border: 0; white-space: normal; min-width: 0; overflow-wrap: anywhere; }
  .tbl.compare th { grid-column: 1 / -1; font-size: .8rem; color: #9DB4FF; }
  .tbl.compare td { padding: .4rem .5rem; border-radius: 8px; background: rgba(255, 255, 255, .03); font-size: .88rem; }
  .tbl.compare td.win { background: rgba(59, 204, 138, .1); box-shadow: inset 2px 0 0 #3bcc8a; }
  .tbl.compare td:nth-of-type(1)::before { content: "PQB"; } .tbl.compare td:nth-of-type(2)::before { content: "QSB"; }
  .tbl.compare td::before { display: block; font-size: .62rem; font-weight: 700; letter-spacing: .06em; color: #7d84b0; margin-bottom: .15rem; }
  form.inline { flex-direction: column; align-items: stretch; }
  form.inline input { font-size: 16px; }
}
@media (max-width: 760px) {
  .pq-card .tbl { display: block; overflow: visible; }
  .pq-card .tbl thead { display: none; }
  .pq-card .tbl tr { display: grid; gap: .25rem; padding: .6rem 0; border-bottom: 1px solid rgba(150, 170, 255, .08); }
  .pq-card .tbl td { display: block; padding: 0; border: 0; white-space: normal; overflow-wrap: anywhere; }
}
@media (max-width: 760px) { .tbl.compare td, .tbl.compare th { width: auto; } }

.txflow-c { display: none; }
@media (max-width: 760px) { .txflow-c { display: block; } }
@media (max-width: 760px) {
  .io { display: none; }
  .iom { display: grid; gap: .35rem; }
  .iom .tfm-label { font-family: inherit; display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem; }
  .iom .tfm-label .mono, .iom .tfm-label a { font-family: var(--mono); font-size: .8rem; }
  .tfm-n { font-family: var(--mono); font-size: .72rem; color: #7d84b0; min-width: .9rem; }
  .tfm-subline { font-size: .74rem; color: #9DA4CE; overflow-wrap: anywhere; }
  .tfm-subline .link { font-size: .74rem; }
  .tfm-row-pq { background: rgba(58, 72, 140, .45); }
}
@media (max-width: 760px) { .txflow-c { margin: .2rem 0 0; } }
/* things with an explanation behind a tap */
button.badge.has-tip { cursor: help; font: inherit; font-size: .78rem; }
.tip-q { display: inline-grid; place-items: center; width: 1.05em; height: 1.05em; margin-left: .2rem; border-radius: 50%; font-size: .72em; font-weight: 700; background: rgba(255, 255, 255, .14); }
button.step-dot.has-tip { cursor: help; font: inherit; padding: 0; }
/* anything that copies on tap: a hint on hover, a confirmation after */
[data-copy] { cursor: copy; }
.copyable:hover, .rp-v[data-copy]:hover, .rp-node code[data-copy]:hover { text-decoration: underline dotted rgba(196, 204, 254, .6); }
.copied-toast { position: fixed; z-index: 100; transform: translate(-50%, -150%); padding: .15rem .5rem; border-radius: 6px; font: 600 .72rem var(--font); color: #0B0E1E; background: #6fe0ae; pointer-events: none; animation: toast 1.1s ease-out forwards; }
@keyframes toast { 0% { opacity: 0; transform: translate(-50%, -100%); } 15%, 70% { opacity: 1; transform: translate(-50%, -150%); } 100% { opacity: 0; transform: translate(-50%, -170%); } }

/* home lists sit on a panel so they read over the backdrop; no panel inside a panel */
.home-list .empty { background: none; border: 0; box-shadow: none; padding: .4rem 0; }
.home-list:has(.blocks) { overflow: visible; }

@media (max-width: 760px) {
  /* the disassembly keeps one column grid across every group, and scrolls as a block */
  .disasm details { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .disasm .tbl { display: table; min-width: 34rem; }
  .disasm .tbl td, .disasm .tbl th { white-space: normal; }
  .disasm td.hex { white-space: nowrap; }
  /* the secrets map: smaller cells, menus side by side */
  .smap-grids { grid-template-columns: 1fr; gap: .9rem; }
  .smap-grid { gap: 2px; }
  .sc { border-radius: 3px; }
  .smap-big { font-size: 1.35rem; }
  /* transaction rows: amount under the id, never clipped */
  .atx-row { grid-template-columns: minmax(0, 1fr) auto; }
  .atx-meta { font-size: .76rem; }
}


/* ── phones ──────────────────────────────────────────────────────────────────────────────────
   Two-column grids look broken when the count is odd: the last card sits alone against a gap.
   Everywhere a grid pairs cards up, the odd one out takes the whole row instead. */
@media (max-width: 600px) {
  .stats > .stat:last-child:nth-child(odd),
  .smap-menus > *:last-child:nth-child(odd),
  .grid2 > *:last-child:nth-child(odd) { grid-column: 1 / -1; }

  /* blocks: fix the column count so "last of an odd number" is knowable, then widen that one */
  .blocks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blocks > *:last-child:nth-child(odd) { grid-column: 1 / -1; }

  /* amounts: the dollar value goes under the BTC figure rather than off the edge */
  .stat-value .usd { display: block; }

  /* the ribbon diagram carries no information at this width: the inputs and outputs below are
     already drawn as proportional bars, and for a 1-in/1-out spend the ribbons are one block */
  .tx-flow { display: none; }
  /* a block's 3,749 ids: one line each, clipped, the way a list of ids is meant to read */
  .txids a { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}
.stat { min-width: 0; }