/*!
 * SiMatrix Design System v4.0 · simatrix.css
 * 共生矩阵：墨色空间里的透视网格，琥珀色代表人类判断，钢蓝色代表智能体执行；
 * 交互层使用液态玻璃材质。所有页面只从这里取 token 与组件；动效行为见 simatrix.js。
 * 结构：1 Tokens → 2 Base → 3 Layout → 4 Type → 5 Materials → 6 Components → 7 Motion states
 */

/* ───────────────────────── 1. Tokens ───────────────────────── */
:root {
  color-scheme: dark;

  /* Color · surfaces */
  --sm-bg: #08090D;
  --sm-bg-raise: #10131A;
  --sm-bg-sunk: #050609;
  /* Color · text */
  --sm-fg: #EDF0F5;
  --sm-fg-2: #A4ACB9;
  --sm-fg-3: #69717F;
  /* Color · lines */
  --sm-line: rgba(170, 186, 212, .10);
  --sm-line-strong: rgba(170, 186, 212, .22);
  /* Color · brand: logo cyan = SiMatrix / AI execution, amber = human judgement, steel = secondary */
  --sm-accent: #45E2DB;
  --sm-accent-hover: #86F0EA;
  --sm-accent-ink: #03201E;
  --sm-accent-soft: rgba(69, 226, 219, .13);
  --sm-human: #EBB867;
  --sm-human-soft: rgba(235, 184, 103, .14);
  --sm-silver: linear-gradient(160deg, #F4F6F9 0%, #A9B0BA 55%, #E6E9EE 100%);
  --sm-cool: #8FB5DD;
  --sm-cool-soft: rgba(143, 181, 221, .13);
  /* Color · semantic */
  --sm-ok: #7FC8A3;
  --sm-warn: #E6B45A;
  --sm-danger: #E58A7C;
  /* Color · canvas */
  --sm-matrix-dot: #9AA7BD;
  /* Elevation */
  --sm-shadow-1: 0 1px 0 rgba(255, 255, 255, .04) inset, 0 16px 40px -18px rgba(0, 0, 0, .7);
  --sm-shadow-2: 0 50px 100px -40px rgba(0, 0, 0, .85), 0 0 0 1px rgba(255, 255, 255, .02);

  /* Material · liquid glass */
  --sm-glass-tint: rgba(28, 33, 45, .38);
  --sm-glass-tint-strong: rgba(20, 24, 33, .62);
  --sm-glass-blur: 22px;
  --sm-glass-hi: rgba(255, 255, 255, .16);
  --sm-glass-lo: rgba(255, 255, 255, .04);
  --sm-glass-edge: rgba(255, 255, 255, .07);
  --sm-glass-rim: rgba(255, 255, 255, .6);
  --sm-glass-rim-2: rgba(143, 181, 221, .4);
  --sm-glass-spec: rgba(255, 255, 255, .13);
  --sm-glass-shadow: 0 20px 50px -20px rgba(0, 0, 0, .7);
  --sm-lens: rgba(255, 255, 255, .11);
  --sm-glare: rgba(255, 255, 255, .16);

  /* Type · families */
  --sm-font-display: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sm-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --sm-font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --sm-font-brand: "Michroma", "Eurostile", "Arial", sans-serif;
  /* Type · scale (fluid) */
  --sm-fs-mega: clamp(3.1rem, 9vw, 8.5rem);
  --sm-fs-hero: clamp(2.5rem, 6vw, 5.5rem);
  --sm-fs-h1: clamp(2rem, 4.4vw, 3.75rem);
  --sm-fs-h2: clamp(1.5rem, 2.8vw, 2.4rem);
  --sm-fs-h3: clamp(1.125rem, 1.4vw, 1.3rem);
  --sm-fs-lead: clamp(1rem, 1.25vw, 1.16rem);
  --sm-fs-body: 1rem;
  --sm-fs-small: .875rem;
  --sm-fs-micro: .72rem;

  /* Space · 4px base */
  --sm-s-1: 4px;
  --sm-s-2: 8px;
  --sm-s-3: 12px;
  --sm-s-4: 16px;
  --sm-s-5: 24px;
  --sm-s-6: 32px;
  --sm-s-7: 48px;
  --sm-s-8: 64px;
  --sm-s-9: 96px;
  --sm-s-10: 144px;
  --sm-gutter: clamp(16px, 4vw, 48px);
  --sm-section-y: clamp(88px, 12vw, 176px);
  --sm-maxw: 1320px;
  --sm-nav-h: 76px;
  --sm-dock-h: 0px;

  /* Radius */
  --sm-r-xs: 3px;
  --sm-r-sm: 8px;
  --sm-r-md: 14px;
  --sm-r-lg: 24px;
  --sm-r-pill: 999px;

  /* Motion */
  --sm-dur-1: 120ms;
  --sm-dur-2: 240ms;
  --sm-dur-3: 480ms;
  --sm-dur-4: 900ms;
  --sm-dur-5: 1400ms;
  --sm-ease-out: cubic-bezier(.16, 1, .3, 1);
  --sm-ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --sm-ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --sm-ease-liquid: cubic-bezier(.3, 1.3, .5, 1);
  --sm-stagger: 80ms;
  --sm-perspective: 1600px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --sm-bg: #F2F3F6;
    --sm-bg-raise: #FFFFFF;
    --sm-bg-sunk: #E7E9EE;
    --sm-fg: #0C1016;
    --sm-fg-2: #4A5160;
    --sm-fg-3: #7A8190;
    --sm-line: rgba(20, 32, 54, .10);
    --sm-line-strong: rgba(20, 32, 54, .20);
    --sm-accent: #0B807D;
    --sm-accent-hover: #0D9894;
    --sm-accent-ink: #F0FFFE;
    --sm-accent-soft: rgba(11, 128, 125, .11);
    --sm-human: #9A620B;
    --sm-human-soft: rgba(176, 116, 18, .12);
    --sm-silver: linear-gradient(160deg, #1A1F27 0%, #4A5363 55%, #1A1F27 100%);
    --sm-cool: #2E5E8E;
    --sm-cool-soft: rgba(46, 94, 142, .10);
    --sm-ok: #217A52;
    --sm-warn: #A26A0A;
    --sm-danger: #B43F2F;
    --sm-matrix-dot: #34405A;
    --sm-shadow-1: 0 1px 0 rgba(255, 255, 255, .9) inset, 0 16px 40px -20px rgba(20, 32, 54, .25);
    --sm-shadow-2: 0 50px 100px -40px rgba(20, 32, 54, .35), 0 0 0 1px rgba(20, 32, 54, .04);
    --sm-glass-tint: rgba(255, 255, 255, .42);
    --sm-glass-tint-strong: rgba(255, 255, 255, .72);
    --sm-glass-hi: rgba(255, 255, 255, .95);
    --sm-glass-lo: rgba(20, 32, 54, .06);
    --sm-glass-edge: rgba(20, 32, 54, .08);
    --sm-glass-rim: rgba(255, 255, 255, 1);
    --sm-glass-rim-2: rgba(46, 94, 142, .25);
    --sm-glass-spec: rgba(255, 255, 255, .7);
    --sm-glass-shadow: 0 20px 50px -22px rgba(20, 32, 54, .35);
    --sm-lens: rgba(255, 255, 255, .9);
    --sm-glare: rgba(255, 255, 255, .55);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --sm-bg: #F2F3F6;
  --sm-bg-raise: #FFFFFF;
  --sm-bg-sunk: #E7E9EE;
  --sm-fg: #0C1016;
  --sm-fg-2: #4A5160;
  --sm-fg-3: #7A8190;
  --sm-line: rgba(20, 32, 54, .10);
  --sm-line-strong: rgba(20, 32, 54, .20);
  --sm-accent: #0B807D;
  --sm-accent-hover: #0D9894;
  --sm-accent-ink: #F0FFFE;
  --sm-accent-soft: rgba(11, 128, 125, .11);
  --sm-human: #9A620B;
  --sm-human-soft: rgba(176, 116, 18, .12);
  --sm-silver: linear-gradient(160deg, #1A1F27 0%, #4A5363 55%, #1A1F27 100%);
  --sm-cool: #2E5E8E;
  --sm-cool-soft: rgba(46, 94, 142, .10);
  --sm-ok: #217A52;
  --sm-warn: #A26A0A;
  --sm-danger: #B43F2F;
  --sm-matrix-dot: #34405A;
  --sm-shadow-1: 0 1px 0 rgba(255, 255, 255, .9) inset, 0 16px 40px -20px rgba(20, 32, 54, .25);
  --sm-shadow-2: 0 50px 100px -40px rgba(20, 32, 54, .35), 0 0 0 1px rgba(20, 32, 54, .04);
  --sm-glass-tint: rgba(255, 255, 255, .42);
  --sm-glass-tint-strong: rgba(255, 255, 255, .72);
  --sm-glass-hi: rgba(255, 255, 255, .95);
  --sm-glass-lo: rgba(20, 32, 54, .06);
  --sm-glass-edge: rgba(20, 32, 54, .08);
  --sm-glass-rim: rgba(255, 255, 255, 1);
  --sm-glass-rim-2: rgba(46, 94, 142, .25);
  --sm-glass-spec: rgba(255, 255, 255, .7);
  --sm-glass-shadow: 0 20px 50px -22px rgba(20, 32, 54, .35);
  --sm-lens: rgba(255, 255, 255, .9);
  --sm-glare: rgba(255, 255, 255, .55);
}
:root[data-theme="dark"] { color-scheme: dark; }

@media (max-width: 960px) {
  :root { --sm-dock-h: 76px; }
}
@media (max-width: 760px) {
  :root { --sm-nav-h: 64px; }
}

/* ───────────────────────── 2. Base ───────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--sm-nav-h) + 16px); }
body {
  margin: 0;
  background: var(--sm-bg);
  color: var(--sm-fg);
  font-family: var(--sm-font-body);
  font-size: var(--sm-fs-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  padding-bottom: calc(var(--sm-dock-h) + env(safe-area-inset-bottom, 0px));
  -webkit-tap-highlight-color: transparent;
}
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
::selection { background: var(--sm-accent); color: var(--sm-accent-ink); }
:focus-visible { outline: 2px solid var(--sm-accent); outline-offset: 3px; border-radius: var(--sm-r-xs); }
.sm-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ───────────────────────── 3. Layout ───────────────────────── */
.sm-container { width: 100%; max-width: var(--sm-maxw); margin-inline: auto; padding-inline: var(--sm-gutter); }
.sm-section { position: relative; padding-block: var(--sm-section-y); }
.sm-section--rule { border-top: 1px solid var(--sm-line); }
.sm-section--sunk { background: var(--sm-bg-sunk); }
.sm-section--stage { overflow: hidden; isolation: isolate; }
.sm-section--stage::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, var(--sm-bg) 0%, transparent 30%), linear-gradient(90deg, var(--sm-bg) 0%, transparent 60%);
  opacity: .8;
}
.sm-section-head {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--sm-s-6) var(--sm-s-8); align-items: end;
  margin-bottom: clamp(40px, 6vw, 88px);
}
.sm-section-head > * { min-width: 0; }
.sm-grid { display: grid; gap: var(--sm-s-5); }
.sm-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sm-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sm-split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.sm-split > * { min-width: 0; }
.sm-split--center { align-items: center; }
.sm-sticky { position: sticky; top: calc(var(--sm-nav-h) + 32px); }
.sm-row { display: flex; flex-wrap: wrap; gap: var(--sm-s-3); align-items: center; }
.sm-flow { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sm-s-6); align-content: start; justify-items: start; }
.sm-flow > * { max-width: 100%; }
.sm-flow--md { gap: var(--sm-s-5); }
.sm-flow--sm { gap: var(--sm-s-4); }
.sm-flow--stretch { justify-items: stretch; }
.sm-push { margin-top: var(--sm-s-7); }
@media (max-width: 960px) {
  .sm-section-head, .sm-split { grid-template-columns: minmax(0, 1fr); }
  .sm-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm-sticky { position: static; }
}
@media (max-width: 640px) {
  .sm-grid--2, .sm-grid--3 { grid-template-columns: minmax(0, 1fr); }
}

/* ───────────────────────── 4. Type ───────────────────────── */
.sm-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase; line-height: 1.2;
  color: var(--sm-fg-2);
}
.sm-eyebrow::before { content: ""; width: 6px; height: 6px; background: var(--sm-accent); flex: none; }
.sm-mega, .sm-display, .sm-h1, .sm-h2 { font-family: var(--sm-font-display); font-weight: 600; text-wrap: balance; color: var(--sm-fg); }
.sm-mega { font-size: var(--sm-fs-mega); line-height: 1.02; letter-spacing: -.02em; font-weight: 700; }
.sm-display { font-size: var(--sm-fs-hero); line-height: 1.08; letter-spacing: -.012em; }
.sm-h1 { font-size: var(--sm-fs-h1); line-height: 1.14; letter-spacing: -.01em; }
.sm-h2 { font-size: var(--sm-fs-h2); line-height: 1.24; letter-spacing: -.005em; }
.sm-h3 { font-size: var(--sm-fs-h3); font-weight: 600; line-height: 1.45; text-wrap: balance; }
.sm-mega em, .sm-display em, .sm-h1 em { font-style: normal; color: var(--sm-accent); text-shadow: 0 0 60px var(--sm-accent-soft); }
.sm-lead { font-size: var(--sm-fs-lead); line-height: 1.85; color: var(--sm-fg-2); max-width: 34em; text-wrap: pretty; }
.sm-text { color: var(--sm-fg-2); max-width: 38em; text-wrap: pretty; }
.sm-small { font-size: var(--sm-fs-small); line-height: 1.7; }
.sm-mono { font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .08em; color: var(--sm-fg-3); }
.sm-accent { color: var(--sm-accent); }
.sm-muted { color: var(--sm-fg-3); }
.sm-num { font-variant-numeric: tabular-nums; }

/* ───────────────────────── 5. Materials ───────────────────────── */
/* Liquid glass: vibrancy blur + specular rim + inner light + pointer highlight (data-sm-glass). */
.sm-glass {
  position: relative; isolation: isolate;
  background: var(--sm-glass-tint);
  -webkit-backdrop-filter: blur(var(--sm-glass-blur)) saturate(190%) brightness(1.06);
  backdrop-filter: blur(var(--sm-glass-blur)) saturate(190%) brightness(1.06);
  box-shadow:
    inset 0 1px 0 var(--sm-glass-hi),
    inset 0 -1px 0 var(--sm-glass-lo),
    inset 0 0 0 1px var(--sm-glass-edge),
    inset 0 0 24px -12px var(--sm-glass-spec),
    var(--sm-glass-shadow);
}
.sm-glass::before {
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  border-radius: inherit; padding: 1px;
  background: linear-gradient(var(--sm-glass-angle, 145deg), var(--sm-glass-rim) 0%, transparent 32%, transparent 64%, var(--sm-glass-rim-2) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  opacity: .55;
}
.sm-glass::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(140% 90% at var(--sm-gx, 24%) var(--sm-gy, -10%), var(--sm-glass-spec), transparent 46%);
  transition: opacity var(--sm-dur-3) ease;
}
.sm-glass--strong { background: var(--sm-glass-tint-strong); }

/* Lens: the liquid selection pill that flows between items (moved by JS). */
.sm-lens {
  position: absolute; top: 4px; bottom: 4px; left: 0; width: 0; z-index: 0;
  border-radius: var(--sm-r-pill); pointer-events: none; opacity: 0;
  background: var(--sm-lens);
  box-shadow: inset 0 1px 0 var(--sm-glass-hi), inset 0 0 0 1px var(--sm-glass-edge), 0 6px 18px -6px rgba(0, 0, 0, .45);
  transition: opacity var(--sm-dur-2) ease;
  will-change: transform, width;
}

/* ───────────────────────── 6. Components ───────────────────────── */

/* 6.1 Logo — original SiMatrix monogram (assets/logo-mark*.png) injected by [data-sm-logo] */
.sm-logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--sm-fg); flex: none; }
.sm-logo__mark { position: relative; width: 30px; height: 34px; flex: none; transition: transform var(--sm-dur-4) var(--sm-ease-spring), filter var(--sm-dur-3) ease; }
.sm-logo__mark img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.sm-logo:hover .sm-logo__mark { transform: rotateY(180deg); filter: drop-shadow(0 0 10px var(--sm-accent-soft)); }
.sm-logo__text { display: grid; line-height: 1.1; gap: 3px; }
.sm-logo__word { font-family: var(--sm-font-brand); font-size: .86rem; letter-spacing: .34em; margin-right: -.34em; }
.sm-logo__word b { font-weight: 400; color: var(--sm-accent); }
.sm-logo__sub { font-size: .62rem; letter-spacing: .62em; color: var(--sm-fg-3); }
.sm-logo--lg .sm-logo__mark { width: 64px; height: 72px; }
.sm-logo--lg .sm-logo__word { font-size: 1.3rem; }
.sm-logo--lg .sm-logo__sub { font-size: .78rem; }
.sm-theme-light { display: none !important; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .sm-theme-dark { display: none !important; }
  :root:not([data-theme="dark"]) .sm-theme-light { display: block !important; }
}
:root[data-theme="light"] .sm-theme-dark { display: none !important; }
:root[data-theme="light"] .sm-theme-light { display: block !important; }

/* 6.2 Button */
.sm-btn {
  --sm-btn-h: 50px;
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  height: var(--sm-btn-h); padding-inline: 26px;
  border: 1px solid transparent; border-radius: var(--sm-r-pill);
  font-family: var(--sm-font-body); font-size: .95rem; font-weight: 500; line-height: 1;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  background: transparent; color: var(--sm-fg);
  transition: color var(--sm-dur-2) ease, border-color var(--sm-dur-2) ease, background-color var(--sm-dur-2) ease, transform var(--sm-dur-3) var(--sm-ease-out), box-shadow var(--sm-dur-3) ease;
}
.sm-btn > *, .sm-btn svg { position: relative; z-index: 1; }
.sm-btn__fill {
  position: absolute; inset: 0; z-index: 0;
  border-radius: inherit; transform: scaleX(0); transform-origin: 0 50%;
  transition: transform var(--sm-dur-3) var(--sm-ease-out);
}
.sm-btn:hover .sm-btn__fill { transform: scaleX(1); }
.sm-btn__arrow { width: 14px; height: 14px; flex: none; transition: transform var(--sm-dur-3) var(--sm-ease-out); }
.sm-btn:hover .sm-btn__arrow { transform: translateX(4px); }
.sm-btn:active { transform: scale(.96); }
.sm-btn--primary { background: var(--sm-accent); color: var(--sm-accent-ink); box-shadow: 0 10px 30px -10px var(--sm-accent-soft), inset 0 1px 0 rgba(255, 255, 255, .35); }
.sm-btn--primary .sm-btn__fill { background: var(--sm-accent-hover); }
.sm-btn--primary:hover { box-shadow: 0 14px 40px -10px var(--sm-accent), inset 0 1px 0 rgba(255, 255, 255, .35); }
.sm-btn--ghost { border-color: var(--sm-line-strong); }
.sm-btn--ghost .sm-btn__fill { background: var(--sm-cool-soft); }
.sm-btn--ghost:hover { border-color: var(--sm-fg-3); }
.sm-btn.sm-glass { background: var(--sm-glass-tint); }
.sm-btn--glass { overflow: visible; }
.sm-btn--glass .sm-btn__fill { display: none; }
.sm-btn--glass:hover { --sm-glass-tint: var(--sm-glass-tint-strong); }
.sm-btn--quiet { padding-inline: 14px; color: var(--sm-fg-2); }
.sm-btn--quiet:hover { color: var(--sm-fg); }
.sm-btn--quiet .sm-btn__fill { background: var(--sm-line); }
.sm-btn--sm { --sm-btn-h: 40px; padding-inline: 18px; font-size: .86rem; gap: 8px; }
.sm-btn--icon { width: var(--sm-btn-h); padding: 0; }
.sm-btn--icon svg { width: 18px; height: 18px; }
.sm-btn[disabled] { opacity: .45; pointer-events: none; }

/* 6.3 Text link */
.sm-link {
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--sm-fg);
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size var(--sm-dur-3) var(--sm-ease-out), color var(--sm-dur-2);
  padding-bottom: 2px;
}
.sm-link:hover { background-size: 100% 1px; color: var(--sm-accent); }

/* 6.4 Tag, chip & status */
.sm-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border: 1px solid var(--sm-line-strong); border-radius: var(--sm-r-xs);
  font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .04em; line-height: 1.2;
  color: var(--sm-fg-2); white-space: nowrap;
}
.sm-tag--accent { border-color: transparent; background: var(--sm-accent-soft); color: var(--sm-accent); }
.sm-tag--cool { border-color: transparent; background: var(--sm-cool-soft); color: var(--sm-cool); }
.sm-chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px 8px 12px; border-radius: var(--sm-r-pill);
  font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .12em; text-transform: uppercase;
  color: var(--sm-fg-2);
}
.sm-status { display: inline-flex; align-items: center; gap: 8px; font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .08em; color: var(--sm-fg-2); }
.sm-status__dot { position: relative; width: 7px; height: 7px; border-radius: 50%; background: var(--sm-status, var(--sm-ok)); flex: none; }
.sm-status__dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid var(--sm-status, var(--sm-ok)); opacity: 0;
  animation: sm-ping 2.4s var(--sm-ease-out) infinite;
}
.sm-status--warn { --sm-status: var(--sm-warn); }
.sm-status--cool { --sm-status: var(--sm-cool); }
.sm-status--accent { --sm-status: var(--sm-accent); }
.sm-status--human { --sm-status: var(--sm-human); }

/* 6.5 Navigation — floating glass capsule; dock replaces links on phones */
.sm-progress {
  position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 90;
  background: linear-gradient(90deg, var(--sm-human), var(--sm-accent));
  transform-origin: 0 50%; transform: scaleX(var(--sm-p, 0)); pointer-events: none;
}
.sm-nav { position: fixed; top: env(safe-area-inset-top, 0px); left: 0; right: 0; z-index: 80; pointer-events: none; }
.sm-nav__inner {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sm-s-5);
  height: var(--sm-nav-h); pointer-events: none;
}
.sm-nav__inner > * { pointer-events: auto; }
.sm-nav .sm-logo { transition: opacity var(--sm-dur-3) ease, transform var(--sm-dur-3) var(--sm-ease-out); }
.sm-nav__links {
  position: relative; display: flex; gap: 2px; padding: 4px; border-radius: var(--sm-r-pill);
  transition: transform var(--sm-dur-3) var(--sm-ease-out);
}
.sm-nav__links a {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; height: 38px; padding-inline: 16px;
  border-radius: var(--sm-r-pill);
  font-size: .88rem; color: var(--sm-fg-2); text-decoration: none; white-space: nowrap;
  transition: color var(--sm-dur-2);
}
.sm-nav__links a:hover, .sm-nav__links a[aria-current="true"] { color: var(--sm-fg); }
.sm-nav__actions { display: flex; align-items: center; gap: var(--sm-s-2); }
.sm-nav.is-scrolled .sm-nav__links { transform: translateY(-2px); }
@media (max-width: 1080px) { .sm-nav__links a { padding-inline: 12px; } }
@media (max-width: 960px) { .sm-nav__links { display: none; } }
@media (max-width: 760px) {
  .sm-nav__cta { display: none; }
  .sm-nav.is-scrolled .sm-logo__text { opacity: 0; }
}

/* 6.6 Dock — phone tab bar in liquid glass, minimizes while scrolling down */
.sm-dock {
  display: none; padding: 5px; gap: 0;
  width: min(440px, calc(100vw - 20px)); border-radius: 30px;
  transition: width var(--sm-dur-4) var(--sm-ease-liquid), padding var(--sm-dur-3) ease;
}
.sm-dock a {
  position: relative; z-index: 1; flex: 1 1 0; min-width: 0;
  display: grid; justify-items: center; align-content: center; gap: 1px;
  height: 56px; border-radius: 26px;
  font-size: .64rem; letter-spacing: .04em; color: var(--sm-fg-2); text-decoration: none;
  transition: color var(--sm-dur-2), height var(--sm-dur-3) var(--sm-ease-out);
}
.sm-dock a svg { width: 22px; height: 22px; transition: transform var(--sm-dur-3) var(--sm-ease-spring); }
.sm-dock a span { max-height: 16px; overflow: hidden; transition: max-height var(--sm-dur-3) ease, opacity var(--sm-dur-2) ease; }
.sm-dock a[aria-current="true"] { color: var(--sm-fg); }
.sm-dock a[aria-current="true"] svg { transform: scale(1.08); color: var(--sm-accent); }
.sm-dock .sm-lens { top: 5px; bottom: 5px; border-radius: 26px; }
.sm-dock.is-compact { width: min(300px, calc(100vw - 20px)); }
.sm-dock.is-compact a { height: 44px; }
.sm-dock.is-compact a span { max-height: 0; opacity: 0; }
.sm-dock--static { display: flex; margin-inline: auto; max-width: 100%; }
@media (max-width: 960px) {
  .sm-dock:not(.sm-dock--static) {
    display: flex; position: fixed; left: 50%; bottom: calc(10px + env(safe-area-inset-bottom, 0px)); z-index: 85;
    transform: translateX(-50%);
  }
}

/* 6.7 Hero — perspective lattice with a glass HUD */
.sm-hero {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: clamp(620px, 100svh, 1040px);
  display: flex; align-items: flex-end;
  padding-top: calc(var(--sm-nav-h) + clamp(40px, 8vw, 120px));
  padding-bottom: clamp(28px, 5vw, 64px);
}
.sm-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(50% 45% at 72% 52%, var(--sm-accent-soft), transparent 70%),
    radial-gradient(40% 40% at 20% 30%, var(--sm-human-soft), transparent 70%);
}
.sm-hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, var(--sm-bg) 0%, transparent 58%), linear-gradient(0deg, var(--sm-bg) 0%, transparent 18%);
  opacity: .75;
}
.sm-hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.sm-hero > .sm-container {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  gap: var(--sm-s-7); align-items: end;
}
.sm-hero__body { display: grid; gap: var(--sm-s-6); justify-items: start; }
@media (max-width: 960px) {
  .sm-hero > .sm-container { grid-template-columns: minmax(0, 1fr); }
  .sm-hero__hud { max-width: 420px; }
}
@media (max-width: 760px) {
  .sm-hero { min-height: 0; padding-top: calc(var(--sm-nav-h) + 48px); }
  .sm-hero::after { background: linear-gradient(180deg, var(--sm-bg) 0%, transparent 34%, transparent 62%, var(--sm-bg) 100%); opacity: .7; }
}

/* 6.8 HUD — glass readout panel */
.sm-hud { display: grid; gap: var(--sm-s-4); padding: var(--sm-s-5); border-radius: var(--sm-r-lg); }
.sm-hud__head { display: flex; justify-content: space-between; align-items: center; gap: var(--sm-s-3); }
.sm-hud__rows { display: grid; gap: 2px; }
.sm-hud__row { display: flex; justify-content: space-between; align-items: center; gap: var(--sm-s-4); padding-block: 8px; border-bottom: 1px solid var(--sm-line); font-size: var(--sm-fs-small); color: var(--sm-fg-2); }
.sm-hud__row:last-child { border-bottom: 0; }
.sm-hud__row b { font-family: var(--sm-font-mono); font-weight: 500; color: var(--sm-fg); font-variant-numeric: tabular-nums; }
.sm-hud__row > span { display: inline-flex; align-items: center; gap: 10px; }
.sm-key { display: inline-block; width: 8px; height: 8px; flex: none; }
.sm-key--human { border-radius: 50%; background: var(--sm-human); box-shadow: 0 0 0 3px var(--sm-human-soft); }
.sm-key--ai { background: var(--sm-accent); }
.sm-key--flow { width: 16px; height: 0; border-top: 1px dashed var(--sm-accent); }

/* 6.9 Marquee */
.sm-marquee {
  overflow: hidden; border-block: 1px solid var(--sm-line);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.sm-marquee__track { display: flex; width: max-content; animation: sm-marquee var(--sm-marquee-dur, 48s) linear infinite; }
.sm-marquee:hover .sm-marquee__track { animation-play-state: paused; }
.sm-marquee__item {
  display: inline-flex; align-items: center; gap: 28px; padding: 20px 14px 20px 0; margin-right: 14px;
  font-family: var(--sm-font-mono); font-size: .8rem; letter-spacing: .08em; color: var(--sm-fg-2); white-space: nowrap;
}
.sm-marquee__item::after { content: ""; width: 5px; height: 5px; background: var(--sm-accent); transform: rotate(45deg); opacity: .8; }

/* 6.10 Card */
.sm-card {
  position: relative; isolation: isolate;
  display: flex; flex-direction: column; gap: var(--sm-s-5);
  padding: clamp(24px, 2.6vw, 36px);
  background: linear-gradient(165deg, var(--sm-bg-raise), var(--sm-bg) 140%);
  border: 1px solid var(--sm-line); border-radius: var(--sm-r-lg);
  box-shadow: var(--sm-shadow-1);
  transition: border-color var(--sm-dur-3) ease, box-shadow var(--sm-dur-3) ease;
}
a.sm-card { color: inherit; text-decoration: none; }
.sm-card:hover { border-color: var(--sm-line-strong); box-shadow: var(--sm-shadow-2); }
.sm-card__head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--sm-s-4); }
.sm-card__body { display: grid; gap: var(--sm-s-3); }
.sm-card__body p { color: var(--sm-fg-2); font-size: .95rem; }
.sm-card__foot { margin-top: auto; padding-top: var(--sm-s-4); border-top: 1px solid var(--sm-line); }
[data-sm-spotlight]::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; border-radius: inherit;
  background: radial-gradient(420px circle at var(--sm-mx, 50%) var(--sm-my, 0%), var(--sm-accent-soft), transparent 62%);
  opacity: 0; transition: opacity var(--sm-dur-3) ease;
}
[data-sm-spotlight]:hover::before { opacity: 1; }

/* 6.11 3D tilt — pointer-driven rotation, depth layers and glare */
[data-sm-tilt] {
  isolation: auto;
  transform: translateZ(0);
  transform-style: preserve-3d;
  transition: transform var(--sm-dur-4) var(--sm-ease-out), border-color var(--sm-dur-3) ease, box-shadow var(--sm-dur-3) ease;
}
[data-sm-tilt].is-tilting { transition: transform 140ms linear, border-color var(--sm-dur-3) ease, box-shadow var(--sm-dur-3) ease; }
[data-sm-tilt] > * { transform-style: preserve-3d; }
[data-sm-depth] { transform: translateZ(calc(var(--sm-depth, 0) * 1px)); }
.sm-tilt__glare {
  position: absolute; inset: 0; z-index: 3; border-radius: inherit; pointer-events: none;
  background: radial-gradient(70% 60% at var(--sm-gx, 50%) var(--sm-gy, 0%), var(--sm-glare), transparent 60%);
  opacity: 0; transition: opacity var(--sm-dur-3) ease;
  mix-blend-mode: soft-light;
}
.is-tilting > .sm-tilt__glare { opacity: 1; }

/* 6.12 Glyph — 5×5 dot pictogram rendered by [data-sm-glyph] */
.sm-glyph { width: 56px; height: 56px; flex: none; overflow: visible; }
.sm-glyph--lg { width: 112px; height: 112px; }
.sm-glyph circle { fill: var(--sm-fg-3); opacity: .35; transform-box: fill-box; transform-origin: center; transition: transform var(--sm-dur-3) var(--sm-ease-spring), opacity var(--sm-dur-2) ease; }
.sm-glyph .is-h { fill: var(--sm-human); opacity: 1; }
.sm-glyph .is-a { fill: var(--sm-accent); opacity: 1; }
:is(.sm-card, .sm-cell, .sm-panel, [data-sm-glyph-host]):hover .sm-glyph :is(.is-h, .is-a),
.sm-carousel__item.is-current .sm-glyph :is(.is-h, .is-a) { transform: scale(1.45); transition-delay: calc(var(--i) * 22ms); }

/* 6.13 Cells — hairline matrix grid */
.sm-cells {
  display: grid; gap: 1px; grid-template-columns: repeat(var(--sm-cols, 3), minmax(0, 1fr));
  background: var(--sm-line); border: 1px solid var(--sm-line); border-radius: var(--sm-r-lg); overflow: hidden;
}
.sm-cell {
  position: relative; isolation: isolate; overflow: hidden;
  display: flex; flex-direction: column; gap: var(--sm-s-4);
  padding: clamp(24px, 3vw, 44px);
  background: var(--sm-bg);
  transition: background-color var(--sm-dur-3) ease;
}
.sm-section--sunk .sm-cell { background: var(--sm-bg-sunk); }
.sm-cell:hover { background: var(--sm-bg-raise); }
.sm-cell p { color: var(--sm-fg-2); font-size: .95rem; }
.sm-cell__meta { display: flex; justify-content: space-between; align-items: center; gap: var(--sm-s-3); }
.sm-cell__corner { width: 10px; height: 10px; border-top: 1px solid var(--sm-fg-3); border-right: 1px solid var(--sm-fg-3); transition: transform var(--sm-dur-3) var(--sm-ease-out), border-color var(--sm-dur-2); }
.sm-cell:hover .sm-cell__corner { transform: translate(3px, -3px); border-color: var(--sm-accent); }
@media (max-width: 960px) { .sm-cells { grid-template-columns: repeat(min(var(--sm-cols, 3), 2), minmax(0, 1fr)); } }
@media (max-width: 640px) { .sm-cells { grid-template-columns: minmax(0, 1fr); } }

/* 6.14 Segmented tabs — glass track + liquid lens; 3D panel stage */
.sm-seg {
  position: relative; display: inline-flex; gap: 2px; padding: 4px; border-radius: var(--sm-r-pill);
  max-width: 100%; min-width: 0; overflow-x: auto; scrollbar-width: none;
}
.sm-seg::-webkit-scrollbar { display: none; }
.sm-seg__tab {
  position: relative; z-index: 1; flex: none;
  display: inline-flex; align-items: center; gap: 8px; height: 42px; padding-inline: 18px;
  border: 0; border-radius: var(--sm-r-pill); background: transparent; cursor: pointer;
  font-size: .9rem; color: var(--sm-fg-2); white-space: nowrap;
  transition: color var(--sm-dur-2);
}
.sm-seg__tab:hover, .sm-seg__tab[aria-selected="true"], .sm-seg__tab[aria-pressed="true"] { color: var(--sm-fg); }
.sm-seg__tab b { font-family: var(--sm-font-mono); font-weight: 500; font-size: .72rem; letter-spacing: .06em; color: var(--sm-fg-3); transition: color var(--sm-dur-2); }
.sm-seg__tab[aria-selected="true"] b { color: var(--sm-accent); }
.sm-seg__tab::after {
  content: ""; position: absolute; left: 18px; right: 18px; bottom: 6px; height: 1.5px; border-radius: 2px;
  background: var(--sm-accent); transform-origin: 0 50%; transform: scaleX(var(--sm-tp, 0)); opacity: .9;
}
.sm-seg__tab:not([aria-selected="true"])::after { transform: scaleX(0); }
.sm-tabs { display: grid; gap: var(--sm-s-7); }
.sm-tabs__stage { display: grid; perspective: var(--sm-perspective); perspective-origin: 50% 30%; }
.sm-tabs__panel {
  --s: 1; --a: 1;
  grid-area: 1 / 1; min-width: 0;
  transform-origin: 50% 50%;
  transform: translate3d(calc(var(--s) * 12%), 0, calc(var(--a) * -240px)) rotateY(calc(var(--s) * -34deg));
  opacity: calc(1 - var(--a));
  visibility: hidden; pointer-events: none;
  transition: transform var(--sm-dur-4) var(--sm-ease-out), opacity var(--sm-dur-3) ease, visibility 0s linear var(--sm-dur-4);
}
.sm-tabs__panel:first-child { --s: 0; --a: 0; visibility: visible; }
.sm-tabs__panel.is-active { visibility: visible; pointer-events: auto; transition-delay: 0s; }

/* 6.15 Layer stack — isometric plates, synced to tabs via sm:tab */
.sm-stack { position: relative; width: 100%; max-width: 420px; aspect-ratio: 1 / .95; margin-inline: auto; perspective: 2000px; }
.sm-stack__plate {
  --lift: 0%;
  position: absolute; left: 25%; top: 25%; width: 50%; aspect-ratio: 1;
  border: 1px solid var(--sm-line-strong); border-radius: 6px;
  background:
    linear-gradient(var(--sm-line) 1px, transparent 1px) 0 0 / 12.5% 12.5%,
    linear-gradient(90deg, var(--sm-line) 1px, transparent 1px) 0 0 / 12.5% 12.5%,
    var(--sm-bg-raise);
  transform: translateY(calc((var(--i) - 1.5) * 30% + var(--lift))) rotateX(60deg) rotateZ(45deg);
  transition: transform var(--sm-dur-4) var(--sm-ease-liquid), border-color var(--sm-dur-3) ease, box-shadow var(--sm-dur-3) ease, opacity var(--sm-dur-3) ease;
  opacity: .7;
}
.sm-stack__plate.is-active {
  --lift: -12%;
  opacity: 1; border-color: var(--sm-accent);
  background:
    linear-gradient(var(--sm-accent-soft) 1px, transparent 1px) 0 0 / 12.5% 12.5%,
    linear-gradient(90deg, var(--sm-accent-soft) 1px, transparent 1px) 0 0 / 12.5% 12.5%,
    var(--sm-bg-raise);
  box-shadow: 0 0 0 1px var(--sm-accent-soft), 0 0 80px var(--sm-accent-soft);
}
.sm-stack__plate::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 10%; aspect-ratio: 1; border-radius: 50%;
  background: var(--sm-accent); transform: translate(-50%, -50%) scale(0);
  transition: transform var(--sm-dur-4) var(--sm-ease-spring);
}
.sm-stack__plate.is-active::after { transform: translate(-50%, -50%) scale(1); }
.sm-stack__caption { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .1em; color: var(--sm-fg-3); }
@media (max-width: 960px) { .sm-stack { max-width: 300px; } }

/* 6.16 Panel — large surface for tabs and carousel */
.sm-panel {
  position: relative; isolation: isolate;
  display: flex; flex-direction: column; gap: var(--sm-s-5);
  padding: clamp(24px, 3vw, 44px);
  border-radius: var(--sm-r-lg);
  background: linear-gradient(160deg, var(--sm-bg-raise) 0%, var(--sm-bg) 120%);
  border: 1px solid var(--sm-line-strong);
  box-shadow: inset 0 1px 0 var(--sm-glass-hi), var(--sm-shadow-2);
}
.sm-panel__head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--sm-s-4); }
.sm-panel__index { font-family: var(--sm-font-display); font-weight: 600; font-size: clamp(3rem, 6vw, 5rem); line-height: .9; color: transparent; -webkit-text-stroke: 1px var(--sm-line-strong); }
.sm-panel p { color: var(--sm-fg-2); }
a.sm-panel { color: inherit; text-decoration: none; }
a.sm-panel:hover { border-color: var(--sm-accent); }
.sm-panel__foot { margin-top: auto; }
.sm-panel__list { display: grid; gap: 0; border-top: 1px solid var(--sm-line); }
.sm-panel__list li { display: flex; align-items: center; gap: 14px; padding-block: 14px; border-bottom: 1px solid var(--sm-line); color: var(--sm-fg); font-size: .95rem; }
.sm-panel__list li::before { content: ""; width: 6px; height: 6px; flex: none; border: 1px solid var(--sm-accent); transform: rotate(45deg); }

/* 6.17 Carousel — 3D coverflow with drag, keys and pager */
.sm-carousel { position: relative; display: grid; gap: var(--sm-s-6); }
.sm-carousel__stage {
  display: grid; perspective: var(--sm-perspective); perspective-origin: 50% 40%;
  padding-block: var(--sm-s-5) var(--sm-s-8);
  touch-action: pan-y; user-select: none; -webkit-user-select: none; cursor: grab;
  outline: none;
}
.sm-carousel__stage.is-dragging { cursor: grabbing; }
.sm-carousel__item {
  position: relative; grid-area: 1 / 1; justify-self: center;
  width: min(480px, 80vw); border-radius: var(--sm-r-lg);
  transform-style: preserve-3d;
  transition: transform var(--sm-dur-4) var(--sm-ease-out), opacity var(--sm-dur-3) ease;
  will-change: transform;
}
.sm-carousel__item::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: 4;
  background: var(--sm-bg); opacity: var(--sm-dim, 0); transition: opacity var(--sm-dur-3) ease;
}
.sm-carousel__item > .sm-panel { height: 100%; min-height: clamp(380px, 44vw, 460px); }
.sm-carousel__item.is-current { -webkit-box-reflect: below 14px linear-gradient(transparent 74%, rgba(255, 255, 255, .14)); }
.is-dragging .sm-carousel__item { transition: none; }
.sm-carousel__bar { display: flex; justify-content: center; align-items: center; gap: var(--sm-s-4); }
.sm-pager { display: flex; gap: 6px; align-items: center; padding: 10px 14px; border-radius: var(--sm-r-pill); }
.sm-pager button {
  position: relative; z-index: 1; width: 8px; height: 8px; padding: 0; border: 0; border-radius: var(--sm-r-pill);
  background: var(--sm-fg-3); opacity: .5; cursor: pointer;
  transition: width var(--sm-dur-3) var(--sm-ease-liquid), background-color var(--sm-dur-2), opacity var(--sm-dur-2);
}
.sm-pager button[aria-current="true"] { width: 28px; background: var(--sm-accent); opacity: 1; }

/* 6.18 Pending case */
.sm-case {
  position: relative; display: flex; flex-direction: column; gap: var(--sm-s-5);
  padding: clamp(24px, 2.6vw, 32px);
  border: 1px dashed var(--sm-line-strong); border-radius: var(--sm-r-lg);
  background: repeating-linear-gradient(135deg, transparent 0 10px, var(--sm-line) 10px 11px), var(--sm-bg);
}
.sm-case__head { display: flex; justify-content: space-between; align-items: center; gap: var(--sm-s-3); }
.sm-case__fields { display: grid; gap: var(--sm-s-4); padding: var(--sm-s-5); border-radius: var(--sm-r-md); }
.sm-case__field { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: var(--sm-s-3); align-items: center; }
.sm-case__field dt { font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .06em; color: var(--sm-fg-3); }
.sm-skeleton {
  display: block; height: 10px; border-radius: 2px; width: var(--w, 100%);
  background: linear-gradient(90deg, var(--sm-line) 0%, var(--sm-line-strong) 45%, var(--sm-line) 90%) 0 0 / 220% 100%;
  animation: sm-shimmer 2.4s linear infinite;
}

/* 6.19 Stat */
.sm-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 120px), 1fr)); gap: var(--sm-s-5); }
.sm-stat { display: grid; gap: 2px; align-content: start; }
.sm-stat__num { font-family: var(--sm-font-display); font-weight: 600; font-size: clamp(2.2rem, 3.6vw, 3rem); line-height: 1; font-variant-numeric: tabular-nums; color: var(--sm-fg); }
.sm-stat__num sup { font-size: .5em; vertical-align: top; color: var(--sm-accent); margin-left: 2px; top: .2em; position: relative; }
.sm-stat__label { font-size: var(--sm-fs-small); color: var(--sm-fg-2); }

/* 6.20 Manifesto */
.sm-manifesto { font-family: var(--sm-font-display); font-weight: 600; font-size: clamp(2rem, 5.4vw, 4.6rem); line-height: 1.26; letter-spacing: -.01em; text-wrap: balance; }
.sm-manifesto em { font-style: normal; color: var(--sm-accent); }

/* 6.21 Key–value rows */
.sm-kv { display: grid; border-top: 1px solid var(--sm-line); }
.sm-kv__row { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto; gap: var(--sm-s-4); align-items: center; padding-block: 18px; border-bottom: 1px solid var(--sm-line); }
.sm-kv__row dt { font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .1em; color: var(--sm-fg-3); }
.sm-kv__row dd { font-size: 1.02rem; color: var(--sm-fg); overflow-wrap: anywhere; user-select: all; -webkit-user-select: all; }
.sm-kv__row--wrap dd { user-select: text; -webkit-user-select: text; }
@media (max-width: 520px) { .sm-kv__row { grid-template-columns: minmax(0, 1fr) auto; row-gap: 4px; } .sm-kv__row dt { grid-column: 1 / -1; } }

/* 6.22 Form field */
.sm-field { display: grid; gap: var(--sm-s-2); }
.sm-field label { font-size: var(--sm-fs-small); color: var(--sm-fg-2); }
.sm-input {
  width: 100%; min-height: 48px; padding: 12px 16px;
  font: inherit; color: var(--sm-fg);
  background: var(--sm-bg-sunk); border: 1px solid var(--sm-line-strong); border-radius: var(--sm-r-sm);
  transition: border-color var(--sm-dur-2) ease, box-shadow var(--sm-dur-2) ease;
}
.sm-input::placeholder { color: var(--sm-fg-3); }
.sm-input:hover { border-color: var(--sm-fg-3); }
.sm-input:focus { outline: none; border-color: var(--sm-accent); box-shadow: 0 0 0 4px var(--sm-accent-soft); }
textarea.sm-input { min-height: 120px; resize: vertical; }
.sm-field__hint { font-size: var(--sm-fs-micro); color: var(--sm-fg-3); }

/* 6.23 Toast */
.sm-toast-region {
  position: fixed; left: 50%; bottom: calc(24px + var(--sm-dock-h) + env(safe-area-inset-bottom, 0px)); z-index: 100;
  display: grid; gap: 8px; justify-items: center; transform: translateX(-50%); pointer-events: none;
  width: max-content; max-width: calc(100vw - 32px);
}
.sm-toast {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: var(--sm-r-pill);
  color: var(--sm-fg); font-size: var(--sm-fs-small);
  animation: sm-toast-in var(--sm-dur-3) var(--sm-ease-spring) both;
}
.sm-toast::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--sm-accent); }
.sm-toast.is-leaving { animation: sm-toast-out var(--sm-dur-2) ease both; }

/* 6.24 Footer */
.sm-footer { border-top: 1px solid var(--sm-line); padding-block: var(--sm-s-8) var(--sm-s-6); overflow: hidden; }
.sm-footer__word { font-family: var(--sm-font-brand); font-weight: 400; font-size: clamp(2rem, 8vw, 7.5rem); line-height: 1; letter-spacing: .08em; color: transparent; -webkit-text-stroke: 1px var(--sm-line-strong); white-space: nowrap; margin-bottom: var(--sm-s-7); user-select: none; }
.sm-footer__grid { display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: var(--sm-s-6); }
.sm-footer__col { display: grid; gap: var(--sm-s-2); align-content: start; }
.sm-footer__col a { color: var(--sm-fg-2); text-decoration: none; font-size: var(--sm-fs-small); width: fit-content; }
.sm-footer__col a:hover { color: var(--sm-accent); }
.sm-footer__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--sm-s-3); margin-top: var(--sm-s-8); padding-top: var(--sm-s-5); border-top: 1px solid var(--sm-line); font-size: var(--sm-fs-micro); color: var(--sm-fg-3); }
.sm-footer__base a { color: inherit; text-decoration: none; }
.sm-footer__base a:hover { color: var(--sm-fg); }
@media (max-width: 760px) { .sm-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } .sm-footer__grid > :first-child { grid-column: 1 / -1; } }


/* ───────────────────────── 6.25+ v3 additions ───────────────────────── */

/* 6.25 Deck — tabs variant: inactive panels wait stacked behind, the front card is thrown out and re-shelved */
.sm-tabs--deck .sm-tabs__stage { perspective: 2000px; perspective-origin: 20% 30%; padding: 100px 120px 0 0; }
@media (max-width: 640px) { .sm-tabs--deck .sm-tabs__stage { padding: 56px 48px 0 0; } }
.sm-tabs--deck .sm-tabs__panel {
  visibility: visible; pointer-events: none;
  opacity: max(0, calc(1 - var(--d, 0) * .2));
  transform: translate3d(calc(var(--d, 0) * 30px), calc(var(--d, 0) * -24px), calc(var(--d, 0) * -150px));
  filter: brightness(calc(1 - var(--d, 0) * .16));
  transition: transform var(--sm-dur-4) var(--sm-ease-liquid), opacity var(--sm-dur-3) ease, filter var(--sm-dur-3) ease;
}
.sm-tabs--deck .sm-tabs__panel.is-active { pointer-events: auto; }
.sm-tabs--deck .sm-tabs__panel.is-out { animation: sm-deck-out 1000ms var(--sm-ease-out) both; }
@keyframes sm-deck-out {
  0% { transform: translate3d(0, 0, 0); opacity: 1; filter: none; }
  42% { transform: translate3d(-8%, 16%, 180px) rotateX(-16deg) rotateZ(-3deg); opacity: 0; }
  56% { transform: translate3d(calc(var(--d) * 30px), calc(var(--d) * -24px), calc(var(--d) * -150px)); opacity: 0; }
  100% { transform: translate3d(calc(var(--d) * 30px), calc(var(--d) * -24px), calc(var(--d) * -150px)); opacity: calc(1 - var(--d) * .2); }
}
.sm-deck-tilt { transform-style: preserve-3d; transform: rotateY(-14deg) rotateX(6deg); transition: transform var(--sm-dur-5) var(--sm-ease-out); }
@media (max-width: 960px) { .sm-deck-tilt { transform: rotateY(-6deg) rotateX(4deg); } }

/* 6.26 Screen — device frame for product captures */
.sm-screen {
  position: relative; overflow: hidden; border-radius: 16px;
  background: #0B0D10; border: 1px solid var(--sm-line-strong);
  box-shadow: var(--sm-shadow-2), inset 0 1px 0 var(--sm-glass-hi);
}
.sm-screen__bar {
  display: flex; align-items: center; gap: 6px; height: 34px; padding-inline: 14px;
  background: #13161C; border-bottom: 1px solid rgba(255, 255, 255, .06);
  font-family: var(--sm-font-mono); font-size: .66rem; color: #8A92A0;
}
.sm-screen__bar i { width: 9px; height: 9px; border-radius: 50%; background: #2A2F38; flex: none; }
.sm-screen__bar i:first-child { background: #E5675D; }
.sm-screen__bar i:nth-child(2) { background: #E8B34A; }
.sm-screen__bar i:nth-child(3) { background: #5CC27A; }
.sm-screen__bar span { flex: 1; min-width: 0; margin-inline: 12px 40px; padding: 4px 12px; border-radius: 7px; background: #0B0D10; text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sm-screen__view { position: relative; aspect-ratio: var(--sm-ar, 16 / 10); overflow: hidden; }
.sm-screen__view > img, .sm-screen__view > canvas, .sm-screen__view > svg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: var(--sm-op, 50% 50%); }
.sm-screen__tag { position: absolute; left: 14px; bottom: 14px; z-index: 2; }

/* 6.27 Page head — hero for sub pages */
.sm-pagehead {
  position: relative; overflow: hidden; isolation: isolate;
  padding-top: calc(var(--sm-nav-h) + clamp(56px, 9vw, 136px));
  padding-bottom: clamp(40px, 6vw, 88px);
}
.sm-pagehead::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(var(--sm-line) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(90deg, var(--sm-line) 1px, transparent 1px) 0 0 / 56px 56px;
  -webkit-mask-image: radial-gradient(70% 90% at 75% 0%, #000, transparent 72%);
  mask-image: radial-gradient(70% 90% at 75% 0%, #000, transparent 72%);
}
.sm-pagehead::after {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background: radial-gradient(45% 60% at 80% 10%, var(--sm-accent-soft), transparent 70%), radial-gradient(30% 40% at 10% 90%, var(--sm-human-soft), transparent 70%);
}
.sm-pagehead__inner { display: grid; gap: var(--sm-s-6); justify-items: start; }
.sm-crumb { display: flex; gap: 10px; align-items: center; font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .14em; color: var(--sm-fg-3); text-transform: uppercase; }
.sm-crumb a { color: inherit; text-decoration: none; }
.sm-crumb a:hover { color: var(--sm-fg); }

/* 6.28 Facts — headline numbers with hairline dividers */
.sm-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); border-top: 1px solid var(--sm-line); }
.sm-fact { display: grid; gap: 6px; padding: var(--sm-s-5) var(--sm-s-5) var(--sm-s-5) 0; border-bottom: 1px solid var(--sm-line); }
.sm-fact + .sm-fact { padding-left: var(--sm-s-5); border-left: 1px solid var(--sm-line); }
.sm-fact b { font-family: var(--sm-font-display); font-weight: 600; font-size: clamp(2.3rem, 4vw, 3.6rem); line-height: 1; font-variant-numeric: tabular-nums; }
.sm-fact b sup { font-size: .45em; color: var(--sm-accent); vertical-align: top; position: relative; top: .25em; margin-left: 2px; }
.sm-fact > span { font-size: var(--sm-fs-small); color: var(--sm-fg-2); max-width: 22em; }
@media (max-width: 640px) {
  .sm-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm-fact + .sm-fact { padding-left: 0; border-left: 0; }
  .sm-fact:nth-child(even) { padding-left: var(--sm-s-4); border-left: 1px solid var(--sm-line); }
}

/* 6.29 Project card + filter */
.sm-projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr)); gap: var(--sm-s-5); }
.sm-project {
  position: relative; display: flex; flex-direction: column;
  border-radius: var(--sm-r-lg); border: 1px solid var(--sm-line);
  background: linear-gradient(170deg, var(--sm-bg-raise), var(--sm-bg) 130%);
  box-shadow: var(--sm-shadow-1);
  text-align: left; color: inherit; font: inherit; padding: 0; cursor: pointer;
}
.sm-project:focus-visible { outline-offset: 4px; }
.sm-project:hover { border-color: var(--sm-line-strong); box-shadow: var(--sm-shadow-2); }
.sm-project__visual { position: relative; aspect-ratio: 16 / 10; margin: 8px 8px 0; border-radius: calc(var(--sm-r-lg) - 6px); overflow: hidden; background: var(--sm-bg-sunk); }
.sm-project__visual > img, .sm-project__visual > svg, .sm-project__visual > canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform var(--sm-dur-5) var(--sm-ease-out); }
.sm-project:hover .sm-project__visual > img, .sm-project:hover .sm-project__visual > svg, .sm-project:hover .sm-project__visual > canvas { transform: scale(1.04); }
.sm-project__no { position: absolute; bottom: 10px; left: 10px; z-index: 2; }
.sm-project__body { display: grid; gap: var(--sm-s-3); padding: var(--sm-s-5); flex: 1; align-content: start; }
.sm-project__body p { color: var(--sm-fg-2); font-size: .92rem; }
.sm-project__meta { display: flex; flex-wrap: wrap; gap: 6px; }
.sm-project__foot { display: flex; justify-content: space-between; align-items: center; gap: var(--sm-s-3); padding: var(--sm-s-4) var(--sm-s-5); border-top: 1px solid var(--sm-line); font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); color: var(--sm-fg-3); letter-spacing: .06em; }
.sm-project__foot b { color: var(--sm-accent); font-weight: 500; }
.sm-project.is-filtered { display: none; }
.sm-project.is-shown { animation: sm-pop var(--sm-dur-4) var(--sm-ease-out) both; animation-delay: calc(var(--sm-i, 0) * 40ms); }
@keyframes sm-pop { from { opacity: 0; transform: perspective(900px) translateY(24px) rotateX(10deg) scale(.97); } }

/* 6.30 Dialog — glass detail sheet */
.sm-dialog {
  width: min(920px, calc(100vw - 24px)); max-width: none; max-height: calc(100dvh - 48px); padding: 0; border: 0;
  border-radius: var(--sm-r-lg); color: var(--sm-fg); background: transparent; overflow: visible;
}
.sm-dialog::backdrop { background: rgba(4, 6, 10, .55); -webkit-backdrop-filter: blur(10px) saturate(120%); backdrop-filter: blur(10px) saturate(120%); }
.sm-dialog[open] { animation: sm-dialog-in var(--sm-dur-4) var(--sm-ease-out) both; }
.sm-dialog[open]::backdrop { animation: sm-fade-in var(--sm-dur-3) ease both; }
.sm-dialog__sheet { position: relative; max-height: calc(100dvh - 48px); overflow: auto; border-radius: inherit; padding: clamp(20px, 3vw, 40px); display: grid; gap: var(--sm-s-5); overscroll-behavior: contain; }
.sm-dialog__close { position: sticky; top: 0; justify-self: end; margin-bottom: -40px; z-index: 3; }
@keyframes sm-dialog-in { from { opacity: 0; transform: perspective(1200px) translateY(40px) rotateX(12deg) scale(.96); } }
@keyframes sm-sheet-in { from { transform: translateY(100%); } }
@keyframes sm-fade-in { from { opacity: 0; } }
@media (max-width: 640px) {
  .sm-dialog { width: 100vw; max-height: 92dvh; margin: auto 0 0; border-radius: var(--sm-r-lg) var(--sm-r-lg) 0 0; }
  .sm-dialog[open] { animation-name: sm-sheet-in; }
  .sm-dialog__sheet { max-height: 92dvh; padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px)); }
}

/* 6.31 Spec list + bullets — inside detail sheets */
.sm-spec { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 1px; background: var(--sm-line); border: 1px solid var(--sm-line); border-radius: var(--sm-r-md); overflow: hidden; }
.sm-spec > div { display: grid; gap: 6px; padding: var(--sm-s-4) var(--sm-s-5); background: var(--sm-bg-raise); }
.sm-spec dt { font-family: var(--sm-font-mono); font-size: var(--sm-fs-micro); letter-spacing: .1em; color: var(--sm-fg-3); }
.sm-spec dd { font-size: .92rem; color: var(--sm-fg); }
.sm-bullets { display: grid; gap: 8px; }
.sm-bullets li { display: flex; gap: 12px; color: var(--sm-fg-2); font-size: .95rem; }
.sm-bullets li::before { content: ""; width: 6px; height: 6px; margin-top: .62em; flex: none; border: 1px solid var(--sm-accent); transform: rotate(45deg); }

/* 6.32 Feature — large showcase band (screens + copy) */
.sm-feature { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.sm-feature--flip { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.sm-feature--flip > :first-child { order: 2; }
.sm-feature--hero { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.sm-feature--hero .sm-mega { font-size: clamp(2.8rem, 6.2vw, 6.6rem); }
.sm-feature > * { min-width: 0; }
.sm-feature__media { position: relative; padding-bottom: 8%; }
.sm-feature__media > .sm-screen + .sm-screen { position: absolute; width: 46%; right: -3%; bottom: 0; }
@media (max-width: 960px) {
  .sm-feature, .sm-feature--flip, .sm-feature--hero { grid-template-columns: minmax(0, 1fr); }
  .sm-feature--flip > :first-child { order: 0; }
  .sm-feature__media > .sm-screen + .sm-screen { right: 0; width: 52%; }
}

/* 6.33 Page transitions (cross-document View Transitions, progressive enhancement) */
@view-transition { navigation: auto; }
.sm-nav { view-transition-name: sm-nav; }
.sm-dock { view-transition-name: sm-dock; }
::view-transition-old(root) { animation: sm-vt-out 380ms var(--sm-ease-in-out) both; }
::view-transition-new(root) { animation: sm-vt-in 700ms var(--sm-ease-out) both; }
@keyframes sm-vt-out { to { opacity: 0; transform: perspective(1400px) translateZ(-140px) rotateX(5deg); filter: blur(6px); } }
@keyframes sm-vt-in { from { opacity: 0; transform: perspective(1400px) translate3d(0, 40px, 60px) rotateX(-4deg); filter: blur(8px); } }
@media (prefers-reduced-motion: reduce) { ::view-transition-old(root), ::view-transition-new(root) { animation: none; } }



/* ───────────────────────── 6.34 Product UI kit (v4) ─────────────────────────
   Simplified but faithful product screens. Authored at a fixed 960×600 canvas
   (.sm-ui) and scaled to fit by [data-sm-fit]. Screens stay dark in both themes. */
.sm-fit { position: absolute; inset: 0; overflow: hidden; }
.sm-ui {
  --ui-bg: #0D1015; --ui-panel: #131820; --ui-raise: #1A202A; --ui-line: rgba(255, 255, 255, .07); --ui-line-2: rgba(255, 255, 255, .13);
  --ui-fg: #E7EAF0; --ui-fg-2: #9AA3B2; --ui-fg-3: #626B7A;
  --ui-accent: #45E2DB; --ui-accent-soft: rgba(69, 226, 219, .14); --ui-human: #EBB867; --ui-human-soft: rgba(235, 184, 103, .14);
  --ui-ok: #6FD39B; --ui-ok-soft: rgba(111, 211, 155, .14); --ui-warn: #F0B44C; --ui-bad: #F07A6E; --ui-bad-soft: rgba(240, 122, 110, .14);
  position: absolute; left: 0; top: 0; width: 960px; height: 600px; transform-origin: 0 0; transform: scale(var(--sm-k, 1));
  display: grid; grid-template-columns: 200px 1fr; grid-template-rows: 44px 1fr;
  background: var(--ui-bg); color: var(--ui-fg); font: 400 13px/1.5 var(--sm-font-body); letter-spacing: 0; text-align: left;
  -webkit-font-smoothing: antialiased; overflow: hidden;
}
.sm-ui--bare { grid-template-columns: 1fr; }
.sm-ui--bare .sm-ui__top { grid-column: 1; }
.sm-ui *, .sm-ui *::before, .sm-ui *::after { box-sizing: border-box; }
.sm-ui__top { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; padding: 0 16px; border-bottom: 1px solid var(--ui-line); background: var(--ui-panel); }
.sm-ui__brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13px; }
.sm-ui__brand i { width: 18px; height: 18px; border-radius: 5px; background: linear-gradient(135deg, var(--ui-accent), #2A7F7B); }
.sm-ui__crumb { color: var(--ui-fg-3); font-size: 12px; }
.sm-ui__top .sm-ui__sp { flex: 1; }
.sm-ui__avatar { width: 24px; height: 24px; border-radius: 50%; background: var(--ui-raise); border: 1px solid var(--ui-line-2); }
.sm-ui__side { padding: 12px 10px; border-right: 1px solid var(--ui-line); background: var(--ui-panel); display: flex; flex-direction: column; gap: 2px; }
.sm-ui__side b { font-weight: 500; font-size: 11px; color: var(--ui-fg-3); padding: 10px 8px 4px; letter-spacing: .06em; }
.sm-ui__nav { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 7px; color: var(--ui-fg-2); font-size: 12.5px; }
.sm-ui__nav::before { content: ""; width: 6px; height: 6px; border-radius: 2px; background: var(--ui-fg-3); }
.sm-ui__nav.is-cur { background: var(--ui-raise); color: var(--ui-fg); }
.sm-ui__nav.is-cur::before { background: var(--ui-accent); }
.sm-ui__main { position: relative; padding: 16px; display: grid; gap: 12px; align-content: start; overflow: hidden; min-width: 0; }
.sm-ui__cols { display: grid; gap: 12px; grid-template-columns: var(--cols, 1fr 1fr); align-items: start; min-height: 0; }
.sm-ui__panel { background: var(--ui-panel); border: 1px solid var(--ui-line); border-radius: 10px; padding: 12px; display: grid; gap: 10px; align-content: start; min-width: 0; }
.sm-ui__h { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 12.5px; font-weight: 600; }
.sm-ui__h small { font-weight: 400; color: var(--ui-fg-3); font-size: 11px; }
.sm-ui__title { font-size: 18px; font-weight: 600; letter-spacing: -.01em; }
.sm-ui__muted { color: var(--ui-fg-3); font-size: 11.5px; }
.sm-ui__grid { display: grid; gap: 8px; grid-template-columns: var(--g, 1fr 1fr); }
.sm-ui__field { display: grid; gap: 4px; min-width: 0; }
.sm-ui__field > span { font-size: 11px; color: var(--ui-fg-3); }
.sm-ui__field > div { min-height: 30px; padding: 6px 9px; border-radius: 7px; background: var(--ui-bg); border: 1px solid var(--ui-line-2); color: var(--ui-fg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: border-color .3s ease, box-shadow .3s ease, background-color .3s ease; }
.sm-ui__field.is-on > div { border-color: var(--ui-accent); box-shadow: 0 0 0 3px var(--ui-accent-soft); }
.sm-ui__field.is-miss > div { border-color: var(--ui-human); box-shadow: 0 0 0 3px var(--ui-human-soft); color: var(--ui-human); }
.sm-ui__chip { display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 8px; border-radius: 6px; font-size: 11px; background: var(--ui-raise); color: var(--ui-fg-2); border: 1px solid var(--ui-line); white-space: nowrap; }
.sm-ui__chip--accent { background: var(--ui-accent-soft); color: var(--ui-accent); border-color: transparent; }
.sm-ui__chip--human { background: var(--ui-human-soft); color: var(--ui-human); border-color: transparent; }
.sm-ui__chip--ok { background: var(--ui-ok-soft); color: var(--ui-ok); border-color: transparent; }
.sm-ui__chip--bad { background: var(--ui-bad-soft); color: var(--ui-bad); border-color: transparent; }
.sm-ui__btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 30px; padding: 0 12px; border-radius: 7px; font-size: 12px; font-weight: 500; background: var(--ui-raise); border: 1px solid var(--ui-line-2); color: var(--ui-fg); white-space: nowrap; transition: transform .2s ease, background-color .2s ease, box-shadow .3s ease; }
.sm-ui__btn--primary { background: var(--ui-accent); color: #04201E; border-color: transparent; }
.sm-ui__btn.is-press { transform: scale(.94); box-shadow: 0 0 0 6px var(--ui-accent-soft); }
.sm-ui__table { display: grid; font-size: 12px; }
.sm-ui__tr { display: grid; grid-template-columns: var(--tc, 1.2fr 1fr 1fr .8fr); gap: 8px; align-items: center; padding: 7px 8px; border-bottom: 1px solid var(--ui-line); transition: background-color .4s ease; }
.sm-ui__tr:first-child { color: var(--ui-fg-3); font-size: 11px; }
.sm-ui__tr > * { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sm-ui__tr.is-hl { background: var(--ui-accent-soft); }
.sm-ui__msg { max-width: 92%; padding: 8px 11px; border-radius: 10px; background: var(--ui-raise); font-size: 12.5px; line-height: 1.55; border: 1px solid var(--ui-line); }
.sm-ui__msg--me { justify-self: end; background: var(--ui-accent-soft); border-color: transparent; }
.sm-ui__msg--ai { border-left: 0; }
.sm-ui__who { font-size: 10.5px; color: var(--ui-fg-3); margin-bottom: 2px; }
.sm-ui__input { display: flex; align-items: center; gap: 8px; min-height: 38px; padding: 6px 8px 6px 12px; border-radius: 10px; background: var(--ui-bg); border: 1px solid var(--ui-line-2); }
.sm-ui__input > span:first-child { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sm-ui__input > :not(:first-child) { flex: none; }
.sm-ui__steps { display: grid; gap: 6px; }
.sm-ui__step { display: flex; align-items: center; gap: 9px; font-size: 12px; color: var(--ui-fg-3); transition: color .3s ease; }
.sm-ui__step::before { content: ""; width: 14px; height: 14px; flex: none; border-radius: 50%; border: 1.5px solid var(--ui-line-2); transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease; }
.sm-ui__step.is-on { color: var(--ui-fg); }
.sm-ui__step.is-on::before { border-color: var(--ui-ok); background: radial-gradient(circle, var(--ui-ok) 0 40%, transparent 45%); }
.sm-ui__step.is-run::before { border-color: var(--ui-accent); box-shadow: 0 0 0 4px var(--ui-accent-soft); }
.sm-ui__step em { margin-left: auto; font-style: normal; color: var(--ui-fg-3); font-family: var(--sm-font-mono); font-size: 10.5px; }
.sm-ui__bar { height: 6px; border-radius: 3px; background: var(--ui-raise); overflow: hidden; }
.sm-ui__bar > i { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--ui-accent); transition: width 1.2s cubic-bezier(.16, 1, .3, 1); }
.sm-ui__bar.is-on > i { width: var(--to, 100%); }
.sm-ui__bar--human > i { background: var(--ui-human); }
.sm-ui__big { font-family: var(--sm-font-display); font-weight: 600; font-size: 30px; line-height: 1; font-variant-numeric: tabular-nums; }
.sm-ui__toast { position: absolute; right: 16px; bottom: 16px; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 10px; background: #1F2630; border: 1px solid var(--ui-line-2); box-shadow: 0 18px 40px -12px rgba(0, 0, 0, .7); font-size: 12px; z-index: 5; }
.sm-ui__toast::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ui-ok); }
.sm-ui__mono { font-family: var(--sm-font-mono); font-size: 11px; color: var(--ui-fg-2); }
.sm-ui__term { background: #080A0E; border: 1px solid var(--ui-line); border-radius: 10px; padding: 12px 14px; font-family: var(--sm-font-mono); font-size: 11.5px; line-height: 1.75; color: #B7C0CE; display: grid; align-content: start; }
.sm-ui__term .ok { color: var(--ui-ok); } .sm-ui__term .acc { color: var(--ui-accent); } .sm-ui__term .dim { color: var(--ui-fg-3); } .sm-ui__term .hum { color: var(--ui-human); }
.sm-ui__caret::after { content: ""; display: inline-block; width: 1.5px; height: 1.05em; margin-left: 2px; vertical-align: -2px; background: var(--ui-accent); animation: sm-caret 1s steps(1) infinite; }
.sm-ui svg { display: block; max-width: none; }
.sm-ui__glow { box-shadow: 0 0 0 1px var(--ui-accent), 0 0 30px var(--ui-accent-soft); }
@keyframes sm-caret { 50% { opacity: 0; } }
.sm-ui__field > div.is-on { border-color: var(--ui-accent); box-shadow: 0 0 0 3px var(--ui-accent-soft); }
.sm-ui__field > div[data-ph]:empty::before { content: attr(data-ph); color: var(--ui-human); }
.sm-ui__chip.is-done { background: var(--ui-ok-soft); color: var(--ui-ok); border-color: transparent; }
.sm-ui__nav--dot::before { border-radius: 50%; background: var(--c, var(--ui-fg-3)); }
@keyframes sm-wave { to { transform: scaleY(.3); } }
@media (prefers-reduced-motion: reduce) { .sm-ui * { animation: none !important; } }


/* Player states: [data-at] elements appear on cue; [data-hl] get emphasis on cue */
.sm-js [data-sm-play] [data-at]:not([data-do]):not([data-type]):not([data-cls]):not([data-count]):not(.sm-ui__step):not(.is-on) { opacity: 0; transform: translateY(8px); }
.sm-js [data-sm-play] [data-at]:not([data-do]):not([data-type]):not([data-cls]):not([data-count]):not(.sm-ui__step) { transition: opacity .45s ease, transform .55s cubic-bezier(.16, 1, .3, 1); }
.sm-js [data-sm-play] [data-at][data-do="draw"] { stroke-dasharray: var(--len, 600); stroke-dashoffset: var(--len, 600); transition: stroke-dashoffset 1.1s cubic-bezier(.65, 0, .35, 1); }
.sm-js [data-sm-play] [data-at][data-do="draw"].is-on { stroke-dashoffset: 0; }
.sm-js [data-sm-play] [data-at][data-do="fade"]:not(.is-on) { opacity: 0; }
.sm-js [data-sm-play] [data-at][data-do="fade"] { transition: opacity .5s ease; }
.sm-js [data-sm-play] [data-at][data-do="pop"]:not(.is-on) { opacity: 0; transform: scale(.4); }
.sm-js [data-sm-play] [data-at][data-do="pop"] { transform-box: fill-box; transform-origin: center; transition: opacity .3s ease, transform .5s cubic-bezier(.34, 1.56, .64, 1); }
.sm-js [data-sm-play] [data-at][data-do="out"].is-on { opacity: 0; transition: opacity .4s ease; }

/* Live embed (EtchLab) */
.sm-embed { position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--sm-line-strong); background: #0B0D10; box-shadow: var(--sm-shadow-2); }
.sm-embed__frame { display: block; width: 100%; height: min(78vh, 760px); border: 0; background: #0B0D10; }
.sm-embed__fallback { position: absolute; inset: 0; display: none; }
.sm-embed.is-blocked .sm-embed__frame { visibility: hidden; }
.sm-embed.is-blocked .sm-embed__fallback { display: block; }
.sm-embed__fallback img { width: 100%; height: 100%; object-fit: cover; }
.sm-embed__cta { position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%); }
@media (max-width: 760px) { .sm-embed__frame { height: 72vh; } }

/* 3D probe viewer */
.sm-probe3d { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; }
.sm-probe3d:active { cursor: grabbing; }

/* ───────────────────────── 7. Motion states ───────────────────────── */
.sm-js [data-sm-reveal].is-pending { opacity: 0; transform: translate3d(0, 40px, 0); filter: blur(6px); }
.sm-js [data-sm-reveal="fade"].is-pending { transform: none; }
.sm-js [data-sm-reveal="scale"].is-pending { transform: scale(.94); }
.sm-js [data-sm-reveal="left"].is-pending { transform: translate3d(-40px, 0, 0); }
.sm-js [data-sm-reveal="rise3d"].is-pending { transform: perspective(1200px) translate3d(0, 80px, -80px) rotateX(28deg); transform-origin: 50% 100%; }
.sm-js [data-sm-reveal].is-in {
  transition: opacity var(--sm-dur-4) var(--sm-ease-out), transform var(--sm-dur-5) var(--sm-ease-out), filter var(--sm-dur-4) var(--sm-ease-out);
  transition-delay: calc(var(--sm-i, 0) * var(--sm-stagger));
}

.sm-char { display: inline-block; white-space: pre; }
.is-armed .sm-char { opacity: 0; }
.is-play .sm-char {
  animation: sm-char-in var(--sm-dur-4) var(--sm-ease-out) both;
  animation-delay: calc(var(--sm-split-delay, 0ms) + var(--i) * 36ms);
}

[data-sm-magnetic] { transition: transform var(--sm-dur-3) var(--sm-ease-out), color var(--sm-dur-2), background-color var(--sm-dur-2), border-color var(--sm-dur-2), box-shadow var(--sm-dur-3); }
[data-sm-parallax] { will-change: transform; }

@keyframes sm-char-in { from { opacity: 0; transform: translateY(.5em) rotateX(-60deg); filter: blur(10px); } }
@keyframes sm-ping { 0% { transform: scale(.6); opacity: .9; } 100% { transform: scale(2.2); opacity: 0; } }
@keyframes sm-shimmer { from { background-position: 120% 0; } to { background-position: -120% 0; } }
@keyframes sm-marquee { to { transform: translateX(-50%); } }
@keyframes sm-toast-in { from { opacity: 0; transform: translateY(14px) scale(.94); } }
@keyframes sm-toast-out { to { opacity: 0; transform: translateY(8px) scale(.98); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; transition-delay: 0s !important; }
  .sm-marquee__track { animation: none; }
}