@font-face { font-family: "Geist"; src: url(fonts/geist.woff2) format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url(fonts/geist-mono.woff2) format("woff2"); font-weight: 400 700; font-display: swap; }
:root {
  --bg: #ffffff;
  --bg-2: #f6f7f9;
  --border: #e2e5ea;
  --text: #16181d;
  --muted: #646b78;
  --accent: #2e5bde;
  --accent-hover: #2550c9;
  --accent-soft: #e8eefc;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317; --bg-2: #181b20; --border: #2c3139; --text: #e7e9ee;
    --muted: #949bab; --accent: #5b84f5; --accent-hover: #6f93f7; --accent-soft: #1f2a44;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased; overflow-x: clip;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--bg-2); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; }
.wrap { width: min(1080px, 100% - 40px); margin-inline: auto; }
.muted { color: var(--muted); }

.nav {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0;
  transition: padding .25s ease, box-shadow .25s ease, background-color .25s ease;
}
.nav::before {
  content: ""; position: absolute; inset: 0 calc((100% - 100vw) / 2); z-index: -1;
  background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent; opacity: 0; transition: opacity .25s ease;
}
.nav.scrolled { padding: 10px 0; }
.nav.scrolled::before { opacity: 1; border-bottom-color: var(--border); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 18px; }
.brand:hover { text-decoration: none; }
.nav nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav .gh { display: grid; place-items: center; color: var(--text); }
.nav .gh:hover svg { transform: rotate(-8deg) scale(1.1); }
.nav .gh svg { transition: transform .2s ease; }
.lang {
  height: 30px; padding: 0 11px; border-radius: 999px; border: 1px solid var(--border); background: transparent;
  color: var(--text); font-size: 13px; font-weight: 600; line-height: 1; font-family: inherit; cursor: pointer; transition: border-color .15s, background-color .15s;
}
.lang:hover { border-color: var(--accent); background: var(--accent-soft); }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { letter-spacing: .01em; }
:lang(zh) h1 { font-size: clamp(30px, 4.4vw, 48px); line-height: 1.25; }
:lang(zh) .lead, :lang(zh) p, :lang(zh) li { line-height: 1.75; }
.nav nav a { color: var(--muted); transition: color .15s; }
.nav nav a:hover { color: var(--text); text-decoration: none; }

section { padding: 56px 0; }
h1 { font-size: clamp(34px, 5.2vw, 56px); line-height: 1.08; letter-spacing: -0.025em; margin: 10px 0 18px; }
h2 { font-size: 28px; letter-spacing: -0.015em; margin: 0 0 12px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.hero { position: relative; isolation: isolate; padding-top: 48px; text-align: center; }
.glow {
  position: absolute; z-index: -1; inset: -40px 10% auto; height: 520px; pointer-events: none;
  background:
    radial-gradient(closest-side, rgb(46 91 222 / 18%), transparent) 20% 30% / 55% 70% no-repeat,
    radial-gradient(closest-side, rgb(124 92 255 / 14%), transparent) 80% 20% / 50% 65% no-repeat;
  filter: blur(20px); animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift {
  to { transform: translate3d(0, 30px, 0) scale(1.08); background-position: 35% 45%, 65% 10%; }
}
.hero > :not(.glow, .shot) { animation: rise .7s cubic-bezier(.2, .7, .2, 1) both; }
.hero > :nth-child(2) { animation-delay: .05s; }
.hero > :nth-child(3) { animation-delay: .15s; }
.hero > :nth-child(4) { animation-delay: .25s; }
.hero > :nth-child(5) { animation-delay: .35s; }
.hero > :nth-child(6) { animation-delay: .45s; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } }

.ticker {
  display: inline-flex; align-items: center; gap: 10px; max-width: 100%; margin-top: 26px; padding: 8px 14px;
  border-radius: 999px; border: 1px solid var(--border); background: var(--bg-2);
  font: 14px/1.4 var(--mono); color: var(--muted); white-space: nowrap;
}
.ticker .arrow { color: var(--accent); }
#t-site { min-width: 12ch; text-align: right; }
#t-pw { min-width: 20ch; text-align: left; }
.ticker code { padding: 0; border: 0; background: none; color: var(--text); font-weight: 600; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #2fb36d; box-shadow: 0 0 0 0 rgb(47 179 109 / 50%); animation: ping 2.8s ease-out infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgb(47 179 109 / 50%); } 70%, 100% { box-shadow: 0 0 0 8px rgb(47 179 109 / 0%); } }
.eyebrow { margin: 0; color: var(--accent); font-weight: 600; font-size: 14px; }
.lead { max-width: 680px; margin: 0 auto; color: var(--muted); font-size: 18px; }
.actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin: 26px 0 44px; }
.btn {
  display: inline-flex; align-items: center; height: 44px; padding: 0 20px; border-radius: 8px;
  border: 1px solid var(--border); color: var(--text); font-weight: 600;
  transition: transform .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:hover { text-decoration: none; background: var(--bg-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); box-shadow: 0 8px 20px rgb(46 91 222 / 30%); }
.shot {
  display: block; width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 24px 60px rgb(16 24 40 / 12%);
}

.steps { counter-reset: step; list-style: none; padding: 0; margin: 24px 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.steps li { counter-increment: step; color: var(--muted); }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 30px; height: 30px; margin-bottom: 10px;
  border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 14px;
}
.steps strong { display: block; color: var(--text); }
.flow-wrap {
  margin-top: 8px; padding: 28px 24px; overflow-x: auto; border-radius: 12px;
  background: var(--bg-2); border: 1px solid var(--border);
}
.flow {
  --line: color-mix(in srgb, var(--accent) 55%, var(--border));
  display: grid; min-width: 900px; align-items: center;
  grid-template-columns: 128px minmax(100px, 1fr) 104px 18px 4.2fr; grid-auto-rows: 1fr; row-gap: 12px;
}
.flow > :not(.branch) { grid-row: 1 / 4; }
.flow .branch { grid-column: 5; display: grid; grid-template-columns: 64px 112px minmax(210px, 1fr) 236px; align-items: center; }
.node {
  display: grid; gap: 2px; padding: 10px 12px; border-radius: 10px; text-align: center;
  background: var(--bg); border: 1px solid var(--border); font-size: 14px;
}
.node small { color: var(--muted); font-size: 11.5px; }
.node code { padding: 0; border: 0; background: none; font-weight: 600; font-size: 13px; color: var(--text); white-space: nowrap; }
.node.input b + b { border-top: 1px dashed var(--border); padding-top: 2px; }
.node.root { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.node.root b { color: var(--text); }
.flow-wrap.in .node.root { animation: glowpulse 2.4s ease-in-out 1.2s infinite; }
@keyframes glowpulse { 50% { box-shadow: 0 0 0 6px rgb(46 91 222 / 12%); } }
.node.result { text-align: left; }
.flow .branch:last-child .result code { color: var(--accent); }
.edge { position: relative; align-self: stretch; }
.edge::before {
  content: ""; position: absolute; left: 4px; right: 10px; top: 50%; height: 2px; margin-top: -1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 11px);
  animation: dash .9s linear infinite;
}
.edge::after {
  content: ""; position: absolute; right: 3px; top: 50%; transform: translateY(-50%);
  border-left: 8px solid var(--line); border-block: 5px solid transparent;
}
@keyframes dash { to { background-position: 11px 0; } }
.edge span {
  position: absolute; left: 0; right: 8px; bottom: calc(50% + 6px); text-align: center;
  font: 11.5px/1.2 var(--mono); color: var(--muted); white-space: nowrap;
}
.fork { position: relative; align-self: stretch; }
.fork::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 2px; margin-top: -1px; background: var(--line); }
.fork::after { content: ""; position: absolute; right: 0; width: 2px; top: calc(100% / 6); bottom: calc(100% / 6); background: var(--line); border-radius: 2px; }
.flow > * { transition: opacity .5s ease var(--delay, 0s), transform .5s cubic-bezier(.2, .7, .2, 1) var(--delay, 0s); }
.js .flow-wrap:not(.in) .flow > * { opacity: 0; transform: translateX(-14px); }

.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 24px; }
.grid h3 { margin-top: 16px; font-size: 16px; }
.ic {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px;
  background: var(--accent-soft); color: var(--accent); transition: background-color .2s, color .2s;
}
.grid article:hover .ic { background: var(--accent); color: #fff; }
.spin:hover svg { animation: spin .8s cubic-bezier(.4, 0, .2, 1); }
.slide:hover circle { animation: slide .6s ease-in-out; }
.slide:hover circle:nth-of-type(2) { animation-direction: reverse; }
.shake:hover svg { animation: shake .45s ease-in-out; }
.pop:hover svg { animation: pop .45s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes slide { 50% { transform: translateX(-3px); } }
@keyframes shake { 25% { transform: rotate(-12deg); } 75% { transform: rotate(12deg); } }
@keyframes pop { 50% { transform: scale(1.2); } }
.grid article {
  padding: 22px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.grid article:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); box-shadow: 0 12px 30px rgb(16 24 40 / 8%); }
.grid p, .note p { margin: 0; color: var(--muted); }
.grid p { font-size: 15px; }

.lab {
  display: grid; grid-template-columns: 5fr 7fr; gap: 16px; margin-top: 24px; padding: 16px; border-radius: 18px;
  background:
    radial-gradient(120% 80% at 0% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(120% 80% at 100% 100%, rgb(124 92 255 / 10%), transparent 60%), var(--bg-2);
  border: 1px solid var(--border);
}
.panel { display: grid; align-content: start; gap: 16px; padding: 22px; border-radius: 12px; background: var(--bg); border: 1px solid var(--border); }
.step { display: flex; align-items: center; gap: 10px; margin: 0; font-weight: 650; }
.step span { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 12px; }
.step em { margin-left: auto; color: var(--muted); font-size: 12.5px; font-weight: 400; font-style: normal; }
.panel label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.panel input:not([type=range], [type=checkbox]) {
  width: 100%; height: 42px; padding: 0 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font: inherit; font-size: 15px; transition: border-color .15s, box-shadow .15s;
}
.panel input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgb(46 91 222 / 22%); }
.field { position: relative; display: block; }
.field input { padding-right: 44px !important; }
.icon-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%); display: grid; place-items: center;
  width: 32px; height: 32px; border: 0; border-radius: 6px; background: none; color: var(--muted); cursor: pointer;
}
.icon-btn:hover, .icon-btn[aria-pressed=true] { color: var(--accent); background: var(--accent-soft); }

.fp { display: grid; gap: 10px; margin-top: 4px; padding: 16px; border-radius: 10px; background: var(--accent-soft); }
.fp p { margin: 0; font-size: 13px; }
.cap { font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); }
.words { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; min-height: 84px; }
.words span {
  display: grid; place-items: center; height: 38px; border-radius: 8px; background: var(--bg);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
  font: 600 15px/1 var(--mono); color: var(--accent); animation: chip .45s cubic-bezier(.3, 1.5, .5, 1) both calc(var(--i, 0) * 90ms);
}
@keyframes chip { from { opacity: 0; transform: translateY(8px) scale(.9); } }
.busy-state .words span { animation: none; background: linear-gradient(90deg, var(--bg) 30%, color-mix(in srgb, var(--accent) 10%, var(--bg)) 50%, var(--bg) 70%) 0 0 / 300% 100%; animation: shimmer 1.2s linear infinite; }
@keyframes shimmer { from { background-position: 100% 0; } to { background-position: -50% 0; } }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: -6px; }
.chips button {
  height: 30px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-2);
  color: var(--muted); font: 13px var(--mono); cursor: pointer; transition: all .15s;
}
.chips button:hover { color: var(--text); border-color: var(--muted); }
.chips button.on { background: var(--accent); border-color: var(--accent); color: #fff; }

.screen {
  position: relative; overflow: hidden; display: grid; gap: 10px; padding: 18px 20px; border-radius: 12px;
  background: #0d111a; color: #e8ecf5; border: 1px solid #1f2633;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 4%), 0 12px 30px rgb(16 24 40 / 14%);
}
.screen-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: #8b93a7; }
.screen-top b { color: #e8ecf5; }
.screen-top i { margin-left: 6px; padding: 2px 7px; border-radius: 999px; background: #1c2436; color: #8fb0ff; font: 600 11px var(--mono); }
.copy { height: 28px; padding: 0 12px; border-radius: 6px; border: 1px solid #2a3344; background: #151b28; color: #c9d1e3; font-size: 12px; font-weight: 600; font-family: inherit; cursor: pointer; }
.copy:hover { background: #1c2436; }
.screen .pw { min-height: 36px; font: 600 24px/1.4 var(--mono); letter-spacing: .02em; word-break: break-all; color: #e8ecf5; }
.busy-state .screen .pw { font-size: 14px; font-weight: 400; color: #8b93a7; }
.g-lower { color: #e8ecf5; } .g-upper { color: #8fb0ff; } .g-digit { color: #6ee0a8; } .g-symbol { color: #ffb86b; }
.busy { position: absolute; left: 0; right: 0; top: 0; height: 2px; opacity: 0; background: linear-gradient(90deg, transparent, #5b84f5, transparent) 0 0 / 40% 100% no-repeat; }
.busy-state .busy { opacity: 1; animation: scan 1s linear infinite; }
@keyframes scan { from { background-position: -40% 0; } to { background-position: 140% 0; } }
.old { margin: -4px 0 0; font: 12.5px var(--mono); color: #8b93a7; }
.old:empty { display: none; }
.old s { color: #ff8a8a; }
.meter { height: 6px; border-radius: 99px; background: #1c2230; overflow: hidden; }
.meter span { display: block; height: 100%; border-radius: inherit; background: #6ee0a8; transition: width .4s cubic-bezier(.2, .7, .2, 1), background-color .3s; }
.meter span[data-level=ok] { background: #ffd06b; }
.meter span[data-level=weak] { background: #ff8a8a; }
.bits { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin: 0; font-size: 12.5px; color: #8b93a7; }
.legend { display: flex; gap: 10px; font: 12px var(--mono); }
.legend i { font-style: normal; }

.controls { display: grid; grid-template-columns: 1fr auto; gap: 14px 18px; align-items: end; }
.slider b { color: var(--text); font-family: var(--mono); }
.slider input { width: 100%; accent-color: var(--accent); }
.toggles { display: flex; gap: 6px; margin: 0; padding: 0; border: 0; }
.toggles legend { padding: 0; margin-bottom: 6px; font-size: 13px; color: var(--muted); }
.toggles label { display: block; }
.toggles input { position: absolute; opacity: 0; pointer-events: none; }
.toggles span {
  display: grid; place-items: center; min-width: 46px; height: 32px; padding: 0 8px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border); font: 600 13px var(--mono); color: var(--muted); transition: all .15s;
}
.toggles input:checked + span { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); color: var(--accent); }
.toggles input:focus-visible + span { box-shadow: 0 0 0 3px rgb(46 91 222 / 25%); }
.rotate {
  grid-column: 1 / -1; display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 42px;
  border-radius: 8px; border: 1px dashed color-mix(in srgb, var(--accent) 50%, var(--border)); background: none;
  color: var(--accent); font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; transition: background-color .15s;
}
.rotate:hover { background: var(--accent-soft); }
.rotate svg.turn { animation: spin .6s cubic-bezier(.4, 0, .2, 1); }
.tip { margin: auto 0 0; padding-top: 4px; font-size: 13px; color: var(--muted); }
.secrets { align-content: stretch; grid-template-rows: auto auto auto auto 1fr; }
.err { margin: 0; color: #c93a3a; font-size: 14px; }
.err:empty { display: none; }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 20px; }
.checks { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 28px; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.note { padding: 22px; border-radius: 10px; background: var(--accent-soft); display: grid; gap: 10px; }

.prose { max-width: 720px; padding: 32px 0 64px; }
.prose li { margin-bottom: 8px; }

footer {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 28px 0 40px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px;
}

/* Scroll reveal: hidden only when JS runs (class set in <head>), so no-JS visitors see everything. */
.reveal { transition: opacity .7s ease var(--delay, 0s), transform .7s cubic-bezier(.2, .7, .2, 1) var(--delay, 0s); }
.js .reveal:not(.in) { opacity: 0; transform: translateY(22px); }
.js .shot.reveal:not(.in) { transform: translateY(40px) scale(.97); }
.steps li::before { transition: transform .5s cubic-bezier(.3, 1.6, .5, 1) calc(var(--delay, 0s) + .2s); }
.js .steps li:not(.in)::before { transform: scale(0); }
.checks li::before { transition: transform .4s cubic-bezier(.3, 1.6, .5, 1) calc(var(--delay, 0s) + .25s); }
.js .checks li:not(.in)::before { transform: scale(0) rotate(-45deg); }


/* Screenshot tour: stacked by default, pinned and scrubbed when tour.js adds .tour-on */
.tour-steps { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 48px; }
.tour-item .num { font: 600 13px var(--mono); color: var(--accent); }
.tour-item h3 { margin: 6px 0 8px; font-size: 26px; line-height: 1.2; letter-spacing: -.01em; }
.tour-item p { margin: 0; color: var(--muted); font-size: 17px; max-width: 36ch; }
.tour-mobile { display: block; width: 100%; height: auto; margin-top: 18px; border-radius: 12px; border: 1px solid var(--border); box-shadow: 0 20px 50px -30px rgb(0 0 0 / .45); }
.tour-stage, .tour-progress { display: none; }

.tour-on .tour-pin { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.25fr); align-items: center; gap: 48px; height: 100vh; padding-top: 40px; }
.tour-on .tour-steps { display: grid; margin: 0; }
.tour-on .tour-item { grid-area: 1 / 1; }
.tour-on .tour-item h3 { font-size: clamp(28px, 3.2vw, 40px); }
.tour-on .tour-mobile { display: none; }
.tour-on .tour-progress { display: block; margin-top: 36px; height: 3px; width: 180px; border-radius: 3px; background: var(--border); overflow: hidden; }
.tour-progress span { display: block; height: 100%; background: var(--accent); transform-origin: left; transform: scaleX(.2); }
.tour-on .tour-stage { display: block; }
.tour .w { display: inline-block; }
.frame { border-radius: 14px; border: 1px solid var(--border); background: var(--bg-2); overflow: hidden; box-shadow: 0 40px 80px -40px rgb(20 30 60 / .5); }
.frame-bar { display: flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px; border-bottom: 1px solid var(--border); }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.frame-bar span { margin-left: 10px; padding: 3px 12px; border-radius: 6px; background: var(--bg); color: var(--muted); font: 11.5px var(--mono); }
.frame-view { position: relative; aspect-ratio: 1280 / 800; overflow: hidden; }
.frame-view img { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; }
.frame-view img:first-child { opacity: 1; }
.spot {
  position: absolute; border: 2px solid var(--accent); border-radius: 10px; pointer-events: none;
  box-shadow: 0 0 0 4000px rgb(10 14 24 / .28), 0 0 24px 2px color-mix(in srgb, var(--accent) 60%, transparent);
  animation: spot 1.8s ease-in-out infinite;
}
@keyframes spot { 50% { outline: 6px solid color-mix(in srgb, var(--accent) 25%, transparent); outline-offset: 4px; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media (max-width: 960px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .ticker { font-size: 12px; gap: 8px; }
  #t-site { min-width: 0; }
  .nav nav a:not(.gh) { display: none; }
  .nav nav { gap: 14px; }
  .steps, .cols, .lab, .controls { grid-template-columns: 1fr; }
  .panel { padding: 18px; }
  .screen .pw { font-size: 20px; }
  .grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .grid article { padding: 18px; }
  .flow-wrap { padding: 24px 16px; }
  section { padding: 40px 0; }
}