/* Advanced lab: perception, flow, channels, anti-patterns, environment. */

.ws-button:disabled { border-color:var(--line); }
.nowrap { white-space:nowrap; }
.ap-stage-hint { position:absolute; inset:0; display:grid; place-items:center; font-size:11px; color:var(--ink-3); pointer-events:none; }

/* ---------- Hub ---------- */
.adv-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.adv-card { display:flex; flex-direction:column; gap:14px; min-height:230px; padding:30px; border:1px solid var(--line); border-radius:var(--r-lg); background:var(--surface); color:var(--ink); transition:transform var(--motion-switch) var(--motion-ease), box-shadow var(--motion-switch), border-color var(--motion-switch); }
.adv-card:hover { transform:translateY(-3px); box-shadow:var(--shadow-lift); border-color:var(--line-strong); }
.adv-card-top { display:flex; align-items:center; justify-content:space-between; }
.adv-index { font:11px var(--font-mono); color:var(--ink-3); }
.adv-kicker { font:10px var(--font-mono); letter-spacing:.16em; color:var(--accent-ink); }
.adv-card h2 { font-size:27px; letter-spacing:-.02em; }
.adv-card p { font-size:14px; line-height:1.85; color:var(--ink-2); max-width:46ch; }
.adv-art { overflow:hidden; border:1px solid var(--line); border-radius:14px; background:linear-gradient(145deg,var(--surface),var(--surface-3)); }
.adv-art .study-preview { aspect-ratio:auto; min-height:112px; height:100%; border-bottom:0; background:transparent; }
.adv-art .study-preview svg { width:min(150px,42%); }
.adv-open { font-size:13px; color:var(--accent-ink); }
.adv-card.is-wide { grid-column:1 / -1; display:grid; grid-template-columns:minmax(0,1fr) minmax(260px,360px); grid-template-rows:auto auto 1fr auto; column-gap:32px; }
.adv-card.is-wide .adv-card-top { grid-column:1; grid-row:1; }
.adv-card.is-wide h2 { grid-column:1; grid-row:2; }
.adv-card.is-wide p { grid-column:1; grid-row:3; }
.adv-card.is-wide .adv-open { grid-column:1; grid-row:4; align-self:end; }
.adv-card.is-wide .adv-art { grid-column:2; grid-row:1 / -1; }

/* ---------- Perception: blind test ---------- */
.pc-tabs { display:flex; gap:4px; border-bottom:1px solid var(--line); margin-bottom:26px; }
.pc-tabs button { border:0; background:transparent; padding:12px 18px; font-size:13px; color:var(--ink-2); border-radius:12px 12px 0 0; cursor:pointer; }
.pc-tabs button[aria-selected="true"] { background:var(--surface); color:var(--ink); box-shadow:var(--shadow-card); }
.pc-panel { display:block; }
.pc-workbench { border:1px solid var(--line); border-radius:var(--r-lg); background:var(--surface); padding:30px; }
.pc-workbench-head { display:flex; justify-content:space-between; align-items:flex-start; gap:16px; margin-bottom:18px; }
.pc-counter { font:11px var(--font-mono); color:var(--ink-3); letter-spacing:.08em; }
.pc-test-label { font:11px var(--font-mono); padding:5px 10px; border-radius:999px; background:var(--surface-3); color:var(--ink-2); }
.pc-question { font-size:clamp(22px,2.6vw,31px); letter-spacing:-.03em; margin:6px 0 10px; }
.pc-cue { font-size:14px; color:var(--ink-2); line-height:1.8; max-width:64ch; }
.pc-compare { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:24px 0; }
.pc-blind-wrap { min-width:0; }
.pc-blind-stage { border-radius:20px; background:linear-gradient(145deg,#191a20,#101012); padding:22px 22px 12px; color:var(--stage-ink); overflow:hidden; }
.pc-side-label { display:inline-block; font:10px var(--font-mono); letter-spacing:.18em; color:var(--stage-muted); margin-bottom:12px; }
.pc-track { position:relative; height:92px; border-radius:14px; background:#ffffff08; border:1px solid #ffffff10; overflow:hidden; }
.pc-token { position:absolute; left:4px; top:12px; width:28px; height:28px; border-radius:9px; background:linear-gradient(145deg,#9fb6ff,#6f86e8); box-shadow:0 6px 18px #6f86e855; will-change:transform,opacity; }
.pc-token-2 { top:52px; background:linear-gradient(145deg,#ffd08a,#e8a24f); box-shadow:0 6px 18px #e8a24f44; }
.pc-trail { position:absolute; inset:0; pointer-events:none; }
.pc-trail i { position:absolute; top:calc(50% - 2px); width:4px; height:4px; border-radius:50%; background:#c6d1ff; transform:translateX(-50%); }
.pc-curve { display:block; width:100%; height:40px; margin-top:8px; opacity:0; transition:opacity var(--motion-switch); }
.pc-curve.is-visible { opacity:1; }
.pc-curve polyline { fill:none; stroke:#ffc36f; stroke-width:2; }
.pc-curve-axis { stroke:#ffffff22; stroke-width:1; }
.pc-actions { margin-top:4px; }
.pc-answer { min-width:76px; }
.pc-feedback { min-height:26px; margin-top:14px; font-size:13px; line-height:1.75; color:var(--ink-2); }
.pc-feedback[data-state="correct"] { color:#1d7a5c; }
.pc-feedback[data-state="wrong"] { color:#b45309; }
.pc-summary { border:1px solid var(--line); border-radius:var(--r-lg); background:var(--surface); padding:32px; }
.pc-summary-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; margin:24px 0; }
.pc-summary-card { border:1px solid var(--line); border-radius:16px; padding:18px; display:flex; flex-direction:column; gap:8px; }
.pc-summary-card h3 { font-size:14px; color:var(--ink-2); }
.pc-summary-card strong { font:600 20px var(--font-mono); letter-spacing:-.02em; }
.pc-summary-card p { font-size:12px; line-height:1.7; color:var(--ink-2); }

/* ---------- Perception: feel dictionary ---------- */
.pc-dictionary-workbench { padding:30px; }
.pc-words { display:flex; flex-wrap:wrap; gap:8px; margin:18px 0 22px; }
.pc-word { padding:9px 16px; border:1px solid var(--line); border-radius:999px; background:var(--surface); font-size:13px; cursor:pointer; transition:background var(--motion-feedback), color var(--motion-feedback), border-color var(--motion-feedback), transform var(--motion-feedback); }
.pc-word:hover { border-color:var(--line-strong); }
.pc-word[aria-pressed="true"] { background:var(--ink); color:#fff; border-color:var(--ink); }
.pc-word:active { transform:scale(.97); }
.pc-feel-stages { display:grid; grid-template-columns:1fr; gap:14px; margin-bottom:18px; }
.pc-feel-stages:has(.pc-feel-compare:not(.is-hidden)) { grid-template-columns:1fr 1fr; }
.pc-feel-stage { position:relative; min-height:220px; border-radius:20px; background:linear-gradient(145deg,#191a20,#101012); padding:22px; overflow:hidden; display:flex; align-items:center; justify-content:center; }
.pc-feel-stage > .pc-side-label { position:absolute; top:18px; left:20px; margin:0; }
.pc-feel-compare.is-hidden { display:none; }
.pc-feel-panel { width:78%; max-width:320px; border-radius:18px; border:1px solid #ffffff1c; background:#23252d; padding:0 0 16px; overflow:hidden; box-shadow:0 20px 50px #0004; will-change:transform,opacity; }
.pc-feel-cover { height:76px; margin:12px; border-radius:10px; background:linear-gradient(130deg,#6f70e5,#79b4d0); display:flex; align-items:center; justify-content:center; gap:9px; }
.pc-feel-cover i { width:18px; border-radius:30px; background:#fff4; border:1px solid #fff5; transform:skewY(-14deg); }
.pc-feel-cover i:nth-child(1) { height:44%; } .pc-feel-cover i:nth-child(2) { height:64%; } .pc-feel-cover i:nth-child(3) { height:34%; }
.pc-feel-title { padding:0 16px; font-size:16px; font-weight:600; color:#fff; }
.pc-feel-body { padding:8px 16px 0; font-size:12px; color:#c0c3d0; }
.pc-readout { font:11px/1.8 var(--font-mono); color:var(--ink-2); margin-top:16px; overflow-wrap:anywhere; }
.pc-why { font-size:14px; line-height:1.85; margin-top:12px; max-width:70ch; }
.pc-sliders { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; margin-top:24px; padding-top:22px; border-top:1px solid var(--line); }
.pc-slider { display:grid; grid-template-columns:1fr auto; gap:8px; font-size:12px; color:var(--ink-2); }
.pc-slider > span { grid-row:1; grid-column:1; }
.pc-slider .pc-slider-value { grid-row:1; grid-column:2; align-self:center; text-align:right; }
.pc-slider input { grid-row:2; grid-column:1 / -1; width:100%; accent-color:var(--accent); }
.pc-slider-value { font:11px var(--font-mono); color:var(--ink); }

/* ---------- Flow ---------- */
.fl-layout { display:grid; grid-template-columns:minmax(0,1.55fr) minmax(260px,.7fr); gap:24px; align-items:start; }
.fl-viewport { position:relative; height:540px; border-radius:26px; border:1px solid var(--line); background:var(--surface); overflow:hidden; box-shadow:var(--shadow-card); }
.fl-viewport[data-busy="true"] { cursor:progress; }
.fl-viewport[data-busy="true"] .fl-screen { pointer-events:none !important; }
.fl-screen { position:absolute; inset:0; background:var(--surface); overflow:auto; padding:0 26px 26px; visibility:hidden; opacity:0; }
.fl-appbar { position:sticky; top:0; z-index:2; display:flex; align-items:center; gap:12px; min-height:58px; margin:0 -26px 18px; padding:0 26px; background:rgba(255,255,255,.88); background:color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter:blur(12px); border-bottom:1px solid var(--line); }
.fl-back { width:34px; height:34px; border-radius:50%; border:1px solid var(--line); background:var(--surface); cursor:pointer; font-size:15px; }
.fl-back-spacer { width:34px; }
.fl-app-title { font-size:14px; font-weight:600; }
.fl-app-meta { margin-left:auto; font:10px var(--font-mono); color:var(--ink-3); }
.fl-list { display:flex; flex-direction:column; gap:12px; }
.fl-project-card { display:grid; grid-template-columns:110px 1fr auto; align-items:center; gap:16px; width:100%; padding:14px; border:1px solid var(--line); border-radius:18px; background:var(--surface); text-align:left; cursor:pointer; transition:transform var(--motion-switch) var(--motion-ease), box-shadow var(--motion-switch), border-color var(--motion-switch); }
.fl-project-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-card); border-color:var(--line-strong); }
.fl-project-card:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.fl-hero { display:block; width:100%; height:78px; border-radius:14px; }
.fl-detail-hero { height:210px; border-radius:18px; }
.fl-project-copy { display:flex; flex-direction:column; gap:5px; min-width:0; }
.fl-project-copy strong { font-size:15px; }
.fl-project-copy small { font-size:12px; color:var(--ink-2); }
.fl-project-arrow { color:var(--ink-3); }
.fl-hint { margin-top:16px; font-size:12px; line-height:1.8; color:var(--ink-2); }
.fl-detail { display:flex; flex-direction:column; gap:14px; }
.fl-detail h2 { font-size:clamp(24px,3vw,34px); letter-spacing:-.03em; }
.fl-detail h2:focus-visible { outline:2px solid var(--accent); outline-offset:4px; }
.fl-meta { font:11px var(--font-mono); color:var(--ink-3); }
.fl-body { font-size:15px; line-height:1.85; color:var(--ink-2); max-width:58ch; }
.fl-row { display:flex; flex-wrap:wrap; gap:10px; margin-top:6px; }
.fl-primary { display:inline-flex; align-items:center; justify-content:center; min-height:40px; padding:10px 18px; border-radius:999px; border:1px solid var(--accent); background:var(--accent); color:#fff; font-size:13px; cursor:pointer; }
.fl-primary:disabled { opacity:.5; cursor:default; }
.fl-edit { display:flex; flex-direction:column; gap:14px; }
.fl-label { display:flex; flex-direction:column; gap:8px; font-size:12px; color:var(--ink-2); }
.fl-textarea { width:100%; border:1px solid var(--line); border-radius:16px; padding:16px; font:14px/1.8 var(--font-sans); resize:vertical; background:var(--surface-2); color:var(--ink); }
.fl-textarea:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.fl-status { min-height:22px; font-size:12px; color:var(--ink-2); }
.fl-status[data-state="pending"] { color:var(--accent-ink); }
.fl-status[data-state="done"] { color:#1d7a5c; }
.fl-status[data-state="cancelled"] { color:#b45309; }
.fl-result { display:flex; flex-direction:column; align-items:flex-start; gap:12px; padding-top:20px; }
.fl-check { width:54px; height:54px; border-radius:50%; display:grid; place-items:center; background:rgba(48,209,88,.14); color:#1d7a5c; font-size:24px; }
.fl-result h2 { font-size:clamp(26px,3vw,36px); letter-spacing:-.03em; }
.fl-map { position:sticky; top:88px; display:flex; flex-direction:column; gap:16px; padding:26px; border:1px solid var(--line); border-radius:var(--r-lg); background:var(--surface); }
.fl-map h2 { font-size:21px; letter-spacing:-.02em; }
.fl-nodes { position:relative; display:flex; flex-direction:column; gap:18px; margin:8px 0; padding-left:4px; }
.fl-nodes::before { content:""; position:absolute; left:11px; top:12px; bottom:12px; width:1px; background:var(--line-strong); }
.fl-nodes li { position:relative; display:flex; align-items:center; gap:12px; font-size:13px; color:var(--ink-2); }
.fl-node-dot { position:relative; z-index:1; width:15px; height:15px; border-radius:50%; border:1px solid var(--line-strong); background:var(--surface); margin-left:-4px; transition:background var(--motion-switch), border-color var(--motion-switch), transform var(--motion-switch); }
.fl-nodes li[data-active="true"] { color:var(--ink); font-weight:600; }
.fl-nodes li[data-active="true"] .fl-node-dot { background:var(--accent); border-color:var(--accent); transform:scale(1.15); }
.fl-map-note { font-size:12px; line-height:1.8; color:var(--ink-2); }
.fl-checks { display:flex; flex-direction:column; gap:8px; font-size:12px; color:var(--ink-2); }
.fl-checks li::before { content:"○"; margin-right:8px; color:var(--ink-3); }
.fl-checks li[data-done="true"] { color:var(--ink); }
.fl-checks li[data-done="true"]::before { content:"●"; color:#1d7a5c; }

/* ---------- Channels ---------- */
.ch-workbench { display:grid; grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr); gap:20px; align-items:start; }
.ch-main { display:flex; flex-direction:column; gap:16px; }
.ch-stage { position:relative; min-height:260px; border-radius:24px; background:linear-gradient(145deg,#191a20,#101012); color:var(--stage-ink); display:flex; flex-direction:column; align-items:center; justify-content:center; gap:18px; padding:32px; overflow:hidden; }
.ch-tile { display:flex; flex-direction:column; align-items:center; gap:8px; padding:26px 44px; border:1px solid #ffffff1c; border-radius:22px; background:#ffffff0a; will-change:transform; }
.ch-tile[data-event="error"] { border-color:#e88b6a55; }
.ch-tile[data-event="success"] { border-color:#7fd3b755; }
.ch-glyph { font-size:26px; color:#9fb6ff; }
.ch-state { font-size:21px; letter-spacing:-.02em; }
.ch-detail { font-size:11px; color:var(--stage-muted); }
.ch-stage-note { max-width:46ch; text-align:center; font-size:12px; line-height:1.8; color:var(--stage-muted); }
.ch-controls { display:flex; flex-direction:column; gap:12px; padding:24px; border:1px solid var(--line); border-radius:var(--r-lg); background:var(--surface); }
.ch-controls h2 { font-size:12px; text-transform:uppercase; letter-spacing:.12em; color:var(--ink-3); margin-top:6px; }
.ch-events { margin:0; }
.ch-toggles { display:flex; gap:8px; flex-wrap:wrap; }
.ch-toggle { display:inline-flex; align-items:center; gap:7px; padding:8px 12px; border:1px solid var(--line); border-radius:999px; font-size:12px; cursor:pointer; }
.ch-toggle input { accent-color:var(--accent); }
.ch-slider { gap:6px; }
.ch-status { min-height:36px; font-size:12px; line-height:1.7; color:var(--ink-2); }
.ch-status[data-state="fused"] { color:#1d7a5c; }
.ch-status[data-state="causal"] { color:#a4650c; }
.ch-status[data-state="split"] { color:#b3411d; }
.ch-support { display:flex; flex-wrap:wrap; gap:8px; font-size:11px; color:var(--ink-3); }
.ch-support span { padding:5px 9px; border-radius:8px; background:var(--surface-3); }
.ch-meter-wrap { padding:18px 20px 12px; border:1px solid var(--line); border-radius:20px; background:var(--surface); }
.ch-meter { position:relative; display:flex; flex-direction:column; gap:8px; padding-top:2px; }
.ch-meter-bands { display:flex; font-size:10px; color:var(--ink-3); }
.ch-meter-bands span { width:var(--w); border-left:1px solid var(--line); padding-left:6px; }
.ch-meter-bands .is-fused { color:#1d7a5c; }
.ch-meter-bands .is-causal { color:#a4650c; }
.ch-meter-bands .is-split { color:#b3411d; }
.ch-meter-row { display:grid; grid-template-columns:44px 1fr; align-items:center; gap:10px; }
.ch-meter-label { font-size:11px; color:var(--ink-2); }
.ch-meter-track { position:relative; height:24px; border-radius:7px; background:linear-gradient(90deg,rgba(48,209,88,.08),rgba(255,159,10,.08),rgba(255,69,58,.06)); }
.ch-marker { position:absolute; top:50%; width:12px; height:12px; margin-top:-6px; margin-left:-6px; border-radius:50%; background:var(--ink-3); box-shadow:0 0 0 3px var(--surface); transition:transform 160ms var(--ease-out), background 160ms; }
.ch-meter-row[data-channel="visual"] .ch-marker { background:#0071e3; }
.ch-meter-row[data-channel="audio"] .ch-marker { background:#ff9f0a; }
.ch-meter-row[data-channel="haptic"] .ch-marker { background:#30d158; }
.ch-marker[data-fired="true"] { transform:scale(1.7); }
.ch-meter-ticks { position:relative; height:18px; margin-left:54px; }
.ch-meter-ticks span { position:absolute; transform:translateX(-50%); font:9px var(--font-mono); color:var(--ink-3); }
.ch-meter-axis { margin-top:4px; font-size:11px; color:var(--ink-3); }
.ch-playhead { position:absolute; top:26px; bottom:24px; left:0; width:1px; background:var(--accent); opacity:0; pointer-events:none; }
.ch-playhead[data-playing="true"] { opacity:.8; }

/* ---------- Anti-patterns ---------- */
.ap-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.ap-card { display:flex; flex-direction:column; gap:0; border:1px solid var(--line); border-radius:var(--r-lg); background:var(--surface); overflow:hidden; }
.ap-demo { position:relative; min-height:220px; padding:18px; background:var(--surface-3); display:flex; flex-direction:column; align-items:stretch; justify-content:center; gap:10px; overflow:hidden; }
.ap-copy { display:flex; flex-direction:column; gap:10px; padding:24px; }
.ap-copy h2 { font-size:22px; letter-spacing:-.02em; }
.ap-problem { font-size:13px; line-height:1.8; color:var(--ink-2); }
.ap-fix { font-size:13px; line-height:1.8; color:#1d7a5c; display:none; }
.ap-card[data-fix="true"] .ap-fix { display:block; }
.ap-toggle { align-self:flex-start; margin-top:4px; }
.ap-demo-row { display:flex; align-items:center; flex-wrap:wrap; gap:10px; }
.ap-readout { font:10px var(--font-mono); color:var(--ink-3); }
.ap-scroll-wrap { position:relative; }
.ap-scroller { height:152px; overflow:auto; border-radius:14px; border:1px solid var(--line); background:var(--surface); scroll-behavior:smooth; }
.ap-scroll-section { height:152px; display:flex; align-items:center; justify-content:center; font-size:15px; color:var(--ink-2); border-bottom:1px solid var(--line); }
.ap-badge-note { position:absolute; top:8px; right:8px; padding:4px 8px; border-radius:999px; background:rgba(255,69,58,.12); color:#b3411d; font-size:10px; }
.ap-badge-note[data-state="fixed"] { background:rgba(48,209,88,.12); color:#1d7a5c; }
.ap-sheet-stage { position:relative; height:150px; border-radius:14px; background:var(--surface); border:1px solid var(--line); overflow:hidden; }
.ap-sheet { position:absolute; inset:auto 12px 12px; padding:18px; border-radius:14px; background:var(--ink); color:#fff; transform:translateY(140%); opacity:0; transition-property:transform,opacity; transition-duration:260ms; transition-timing-function:var(--ease-out); }
.ap-sheet p { margin-top:6px; font-size:11px; color:#c9c9cf; }
.ap-sheet.is-open { transform:translateY(0); opacity:1; }
.ap-pulse-stage { display:flex; align-items:center; gap:14px; padding:22px; border-radius:14px; background:var(--surface); border:1px solid var(--line); }
.ap-live-badge { position:relative; padding:6px 12px; border-radius:999px; background:#ff453a; color:#fff; font:600 10px var(--font-mono); letter-spacing:.1em; animation:ap-pulse 1.4s ease-in-out infinite; }
.ap-live-badge[data-fixed="true"] { animation:none; }
.ap-pulse-copy { font-size:12px; color:var(--ink-2); }
@keyframes ap-pulse { 0%,100% { box-shadow:0 0 0 0 rgba(255,69,58,.45); } 50% { box-shadow:0 0 0 9px rgba(255,69,58,0); } }
.ap-bars { display:flex; flex-direction:column; gap:16px; padding:18px; border-radius:14px; background:var(--surface); border:1px solid var(--line); }
.ap-bar-row { display:flex; flex-direction:column; gap:8px; font:10px var(--font-mono); color:var(--ink-3); }
.ap-bar-row[data-variant="bad"] { color:#b3411d; } .ap-bar-row[data-variant="good"] { color:#1d7a5c; }
.ap-bar-track { position:relative; height:16px; border-radius:6px; background:var(--surface-3); overflow:hidden; }
.ap-bar { position:absolute; top:3px; left:4%; width:30%; height:10px; border-radius:4px; background:var(--accent); }
.ap-bar.is-layout { animation:ap-bar-layout 2.2s ease-in-out infinite alternate; }
.ap-bar.is-transform { animation:ap-bar-transform 2.2s ease-in-out infinite alternate; transform-origin:left center; }
@keyframes ap-bar-layout { from { left:4%; width:24%; } to { left:58%; width:36%; } }
@keyframes ap-bar-transform { from { transform:translateX(0) scaleX(.7); } to { transform:translateX(210%) scaleX(1); } }
.ap-marquee { display:flex; flex-direction:column; gap:12px; padding:16px; border-radius:14px; background:var(--surface); border:1px solid var(--line); overflow:hidden; }
.ap-marquee-track { white-space:nowrap; font-size:14px; color:var(--ink-2); animation:ap-marquee 8s linear infinite; }
.ap-marquee-track[data-fixed="true"] { animation-play-state:running; }
.ap-card[data-fix="true"] .ap-marquee:hover .ap-marquee-track { animation-play-state:paused; }
@keyframes ap-marquee { from { transform:translateX(0); } to { transform:translateX(-50%); } }
.ap-stretch-stage { display:grid; grid-template-columns:1fr 1fr; gap:12px; align-items:end; }
.ap-stretch-col { display:flex; flex-direction:column; gap:8px; font-size:10px; color:var(--ink-3); }
.ap-stretch-panel { height:104px; border-radius:14px; background:linear-gradient(130deg,#6f70e5,#79b4d0); display:flex; flex-direction:column; justify-content:center; gap:6px; padding:0 16px; color:#fff; transform-origin:center; will-change:transform,opacity; }
.ap-stretch-panel strong { font-size:15px; } .ap-stretch-panel span { font-size:10px; opacity:.85; }
.ap-stretch-good { position:relative; height:104px; }
.ap-stretch-surface { position:absolute; inset:0; }
.ap-stretch-text { position:absolute; inset:0; display:flex; align-items:center; padding:0 16px; font-size:15px; color:#fff; text-shadow:0 1px 8px #0005; will-change:opacity; }
.ap-stretch-stage > .ap-demo-row { grid-column:1/-1; }
.ap-code { width:100%; margin-top:12px; padding:16px; border:1px solid var(--line); border-radius:16px; background:var(--surface-2); font:12px/1.7 var(--font-mono); color:var(--ink); resize:vertical; }
.ap-code:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.ap-stats { display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.ap-stats span { padding:6px 10px; border-radius:8px; background:var(--surface-3); font:10px var(--font-mono); color:var(--ink-2); }
.ap-results { display:flex; flex-direction:column; gap:10px; margin-top:16px; }
.ap-finding { border:1px solid var(--line); border-left:3px solid var(--ink-3); border-radius:12px; padding:16px 18px; background:var(--surface); }
.ap-finding[data-severity="error"] { border-left-color:#ff453a; }
.ap-finding[data-severity="warn"] { border-left-color:#ff9f0a; }
.ap-finding[data-severity="info"] { border-left-color:#30a0e0; }
.ap-finding-head { display:flex; align-items:center; justify-content:space-between; gap:10px; }
.ap-severity { font:10px var(--font-mono); letter-spacing:.08em; text-transform:uppercase; color:var(--ink-3); }
.ap-finding[data-severity="error"] .ap-severity { color:#b3411d; }
.ap-finding[data-severity="warn"] .ap-severity { color:#a4650c; }
.ap-line { font:10px var(--font-mono); color:var(--ink-3); }
.ap-finding h3 { font-size:14px; margin:8px 0 6px; }
.ap-finding p { font-size:12px; line-height:1.8; color:var(--ink-2); }

/* ---------- Environment ---------- */
.env-block { padding:44px 0; border-top:1px solid var(--line); }
.env-block-head { display:flex; flex-direction:column; gap:10px; margin-bottom:26px; }
.env-block-head h2 { font-size:clamp(24px,2.8vw,34px); letter-spacing:-.03em; }
.env-block-head p:last-child { font-size:14px; line-height:1.85; color:var(--ink-2); max-width:70ch; }
.env-refresh-stage { border-radius:20px; background:linear-gradient(145deg,#191a20,#101012); padding:26px 26px 12px; }
.env-track { position:relative; height:96px; border-radius:14px; background:#ffffff08; border:1px solid #ffffff10; overflow:hidden; }
.env-token { position:absolute; left:4px; top:34px; width:26px; height:26px; border-radius:8px; background:linear-gradient(145deg,#9fb6ff,#6f86e8); box-shadow:0 6px 18px #6f86e855; will-change:transform; }
.env-ticks { position:absolute; inset:0; }
.env-ticks i { position:absolute; bottom:0; width:1px; height:14px; background:#ffffff30; }
.env-ticks-caption { padding:8px 0 6px; font:10px var(--font-mono); color:var(--stage-muted); }
.env-readouts { display:flex; flex-wrap:wrap; gap:8px 24px; align-items:baseline; margin-top:14px; font-size:12px; color:var(--ink-2); }
.env-readouts strong { font:600 14px var(--font-mono); color:var(--ink); }
.env-readout { min-height:22px; margin-top:10px; font-size:12px; line-height:1.7; color:var(--ink-2); }
.env-safe-stage { display:grid; grid-template-columns:auto 1fr; gap:40px; align-items:center; }
.env-phone { position:relative; width:268px; height:480px; padding:10px; border-radius:40px; background:#131316; box-shadow:var(--shadow-sheet); }
.env-phone-screen { position:relative; height:100%; border-radius:30px; background:var(--surface); overflow:hidden; display:flex; flex-direction:column; }
.env-phone-header { display:flex; justify-content:space-between; padding:14px 20px 8px; font:10px var(--font-mono); color:var(--ink-3); }
.env-phone-content { flex:1; padding:14px 18px; }
.env-phone-content h3 { font-size:20px; margin-bottom:12px; }
.env-phone-row { display:flex; align-items:center; gap:10px; padding:11px 0; border-bottom:1px solid var(--line); font-size:12px; }
.env-phone-row i { width:16px; height:16px; border-radius:5px; background:linear-gradient(130deg,#6f70e5,#79b4d0); }
.env-phone-row small { margin-left:auto; color:var(--ink-3); }
.env-tabbar { display:flex; gap:6px; padding:10px 10px calc(10px + env(safe-area-inset-bottom)); border-top:1px solid var(--line); background:var(--surface-2); font-size:11px; }
.env-tabbar span { flex:1; text-align:center; padding:8px 0; border-radius:9px; color:var(--ink-2); }
.env-tabbar span:first-child { background:var(--accent-soft); color:var(--accent-ink); }
.env-phone[data-safe="true"] .env-tabbar { padding-bottom:44px; }
.env-safe-zone { position:absolute; inset:auto 0 0; height:34px; border-top:1px dashed rgba(255,69,58,.6); background:rgba(255,69,58,.07); display:grid; place-items:center; font:9px var(--font-mono); color:#b3411d; pointer-events:none; }
.env-phone[data-safe="true"] .env-safe-zone { display:none; }
.env-safe-copy { display:flex; flex-direction:column; gap:12px; font-size:13px; line-height:1.85; color:var(--ink-2); max-width:52ch; }
.env-safe-copy button { align-self:flex-start; }
.env-direction-stage { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:20px 0; }
.env-dir-card { border:1px solid var(--line); border-radius:18px; background:var(--surface); padding:18px; overflow:hidden; }
.env-dir-head { display:flex; align-items:center; gap:10px; font-size:12px; color:var(--ink-2); margin-bottom:12px; }
.env-arrow { font-size:16px; }
.env-progress { height:8px; border-radius:5px; background:var(--surface-3); overflow:hidden; margin-bottom:12px; }
.env-progress i { display:block; height:100%; background:var(--accent); transform:scaleX(0); transform-origin:left center; transition:transform 320ms var(--ease-out); }
.env-sheet-stage { position:relative; height:120px; border-radius:12px; background:var(--surface-2); border:1px solid var(--line); overflow:hidden; }
.env-sheet { position:absolute; inset:auto 0 0; width:72%; height:88px; display:flex; flex-direction:column; justify-content:center; gap:5px; padding:0 14px; background:var(--ink); color:#fff; border-radius:0 12px 0 0; transform:translateX(-105%); transition:transform 320ms var(--ease-out); }
.env-sheet strong { font-size:13px; } .env-sheet span { font-size:10px; color:#c9c9cf; }
.env-dir-card[data-kind="logical"] .env-progress i { transition:transform 320ms var(--ease-out); }
.env-direction-stage[data-open="true"] .env-progress i { transform:scaleX(1); }
.env-direction-stage[data-open="true"] .env-sheet { transform:translateX(0); }
.env-direction-stage[data-rtl="true"] .env-dir-card[data-kind="logical"] .env-progress i { transform-origin:right center; }
.env-direction-stage[data-rtl="true"] .env-dir-card[data-kind="logical"] .env-sheet { transform:translateX(105%); border-radius:12px 0 0 0; right:0; left:auto; }
.env-direction-stage[data-open="true"][data-rtl="true"] .env-dir-card[data-kind="logical"] .env-sheet { transform:translateX(0); }
.env-direction-notes { display:grid; gap:8px; font-size:13px; line-height:1.85; color:var(--ink-2); max-width:70ch; }
.env-vertical { margin-top:28px; padding:20px; border:1px solid var(--line); border-radius:16px; background:var(--surface); display:flex; gap:24px; align-items:flex-start; }
.env-vertical p { font-size:13px; line-height:1.9; color:var(--ink-2); max-width:52ch; }
.env-vertical[data-vertical="true"] { writing-mode:vertical-rl; max-height:320px; }
.env-vertical[data-vertical="true"] p { max-height:260px; }
.env-vertical-progress { width:8px; border-radius:5px; background:var(--surface-3); overflow:hidden; flex:none; }
.env-vertical-progress i { display:block; height:62%; background:var(--accent); }
.env-vertical[data-vertical="true"] .env-vertical-progress { writing-mode:horizontal-tb; }

/* ---------- Preference and responsive ---------- */
html[data-motion="reduced"] .ap-live-badge,
html[data-motion="none"] .ap-live-badge { animation:none; }
html[data-motion="reduced"] .ap-bar,
html[data-motion="none"] .ap-bar { animation:none; }
html[data-motion="reduced"] .ap-marquee-track,
html[data-motion="none"] .ap-marquee-track { animation-play-state:paused; }
html[data-motion="none"] .ap-marquee-track { transform:none; }
html[data-motion="reduced"] .fl-screen,
html[data-motion="none"] .fl-screen { transition:none; }
html[data-motion="reduced"] .pc-feel-panel { will-change:opacity; }

@media (max-width:980px) {
  .adv-grid,.ap-grid { grid-template-columns:1fr; }
  .fl-layout,.ch-workbench { grid-template-columns:1fr; }
  .fl-map { position:static; }
  .pc-summary-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .env-safe-stage { grid-template-columns:1fr; justify-items:center; }
  .env-safe-copy { max-width:100%; }
  .pc-feel-stages:has(.pc-feel-compare:not(.is-hidden)) { grid-template-columns:1fr; }
}
@media (max-width:720px) {
  .pc-workbench,.pc-summary,.ch-controls { padding:22px; }
  .pc-compare { grid-template-columns:1fr; }
  .pc-sliders { grid-template-columns:1fr; }
  .env-direction-stage { grid-template-columns:1fr; }
  .fl-viewport { height:560px; }
  .fl-project-card { grid-template-columns:84px 1fr auto; gap:12px; }
  .fl-detail-hero { height:160px; }
  .ap-stretch-stage { grid-template-columns:1fr; }
  .ap-stretch-stage > .ap-demo-row { grid-column:auto; }
}
@media (max-width:520px) {
  .site-nav a { padding-inline:4px; font-size:11px; }
  .pc-summary-grid { grid-template-columns:1fr; }
  .fl-viewport { height:600px; }
  .fl-appbar { margin-inline:-18px; padding-inline:18px; }
  .fl-screen { padding-inline:18px; }
  .fl-project-card { grid-template-columns:64px 1fr; }
  .fl-project-arrow { display:none; }
  .env-phone { width:240px; height:440px; }
}