/* ==== fonts ==== */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 100%;
  font-display: swap;
  src: url(/static/fonts/archivo-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Figtree';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url(/static/fonts/figtree-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Fraunces';
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url(/static/fonts/fraunces-italic-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Fraunces';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(/static/fonts/fraunces-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(/static/fonts/jetbrains-mono-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url(/static/fonts/space-grotesk-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ==== tokens ==== */
:root {
  color-scheme: dark light;
  --fs-2xs: 0.6875rem;
  --fs-xs:  0.75rem;
  --fs-sm:  0.875rem;
  --fs-md:  1rem;
  --fs-lg:  1.125rem;
  --fs-xl:  1.375rem;
  --fs-2xl: 1.75rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;
  --fs-5xl: 4rem;
  --fs-6xl: 5.25rem;
  --lh-tight: 1.08;
  --lh-snug:  1.22;
  --lh-body:  1.55;
  --lh-loose: 1.75;
  --sp-0:  0;
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.5rem;
  --sp-6:  2rem;
  --sp-7:  2.5rem;
  --sp-8:  3rem;
  --sp-9:  4rem;
  --sp-10: 5rem;
  --sp-11: 6rem;
  --sp-12: 8rem;
  --ease-out-soft: cubic-bezier(.22, .61, .36, 1);
  --ease-out-expo: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out:   cubic-bezier(.65, 0, .35, 1);
  --ease-spring:   cubic-bezier(.34, 1.56, .64, 1);
  --dur-snap-base:  120ms;
  --dur-fast-base:  200ms;
  --dur-base-base:  320ms;
  --dur-slow-base:  520ms;
  --dur-crawl-base: 900ms;
  --theme-motion-scale: 1;
  --dur-snap:  calc(var(--dur-snap-base)  * var(--theme-motion-scale));
  --dur-fast:  calc(var(--dur-fast-base)  * var(--theme-motion-scale));
  --dur-base:  calc(var(--dur-base-base)  * var(--theme-motion-scale));
  --dur-slow:  calc(var(--dur-slow-base)  * var(--theme-motion-scale));
  --dur-crawl: calc(var(--dur-crawl-base) * var(--theme-motion-scale));
  --container-max: 1320px;
  --container-pad: clamp(1rem, 2.5vw, 2rem);
  --z-bg:     -1;
  --z-base:    1;
  --z-raised:  10;
  --z-sticky:  100;
  --z-header:  200;
  --z-overlay: 900;
  --z-modal:   1000;
  --z-toast:   1100;
  --z-tooltip: 1200;
  --theme-radius-card:  14px;
  --theme-radius-btn:   9999px;
  --theme-radius-pill:  9999px;
  --theme-radius-input: 10px;
  --theme-radius-inset: 6px;
  --theme-density:        1;     
  --theme-grain:          0;     
  --theme-border-width:   1px;
  --theme-surface-alpha:  1;     
  --theme-card-blur:      0px;   
  --theme-bento-gap:      var(--sp-4);
  --theme-offset-y:       0px;   
  --theme-display-tracking: -0.02em;
  --theme-body-tracking:    -0.005em;
  --theme-display-case:     none; 
  --ff-theme-display: "Figtree", ui-sans-serif, system-ui, sans-serif;
  --ff-theme-body:    "Figtree", ui-sans-serif, system-ui, sans-serif;
  --ff-theme-mono:    "JetBrains Mono", ui-monospace, monospace;
  --wght-display:       560;
  --wght-display-hero:  600;
  --wght-body:          400;
  --wght-body-strong:   620;
  --frau-soft: 50;
  --frau-wonk: 0;
  --frau-opsz: 144;
  --surface-void:  #05070B;
  --surface-0:     #141619;
  --surface-1:     #1A1D21;
  --surface-2:     #2C2E3A;
  --surface-3:     #383B47;
  --surface-inset: #0E1013;
  --ink-high:    #F5F6F7;
  --ink-mid:     rgba(245, 246, 247, 0.72);
  --ink-low:     rgba(245, 246, 247, 0.5);
  --ink-whisper: rgba(245, 246, 247, 0.3);
  --line-soft:   rgba(179, 180, 189, 0.08);
  --line-mid:    rgba(179, 180, 189, 0.18);
  --line-strong: rgba(179, 180, 189, 0.32);
  --color-primary:   #0A21C0;
  --color-accent:    #5271FF;
  --color-link: var(--color-primary);
  --color-secondary: #050A44;
  --brand-leaf:  #16A34A;
  --brand-amber: #EAB308;
  --brand-rose:  #E11D48;
  --brand-sky:   #0EA5E9;
  --shadow-sm:     0 1px 2px rgba(5, 7, 11, 0.4), 0 1px 1px rgba(5, 7, 11, 0.3);
  --shadow-md:     0 8px 22px -12px rgba(5, 7, 11, 0.55), 0 2px 4px rgba(5, 7, 11, 0.35);
  --shadow-lift:   0 24px 60px -24px rgba(5, 7, 11, 0.7), 0 6px 16px -8px rgba(5, 7, 11, 0.45);
  --shadow-dialog: 0 40px 120px -40px rgba(5, 7, 11, 0.8), 0 12px 32px -12px rgba(5, 7, 11, 0.55);
  --shadow-inner:  inset 0 1px 0 rgba(245, 246, 247, 0.04);
  --shadow-glow:   0 0 0 1px color-mix(in oklab, var(--color-primary) 30%, transparent),
                   0 12px 40px -8px color-mix(in oklab, var(--color-primary) 28%, transparent);
  --focus-ring: 0 0 0 3px color-mix(in oklab, var(--color-primary) 45%, transparent);
}
html.theme-swapping,
html.theme-swapping body,
html.theme-swapping *:not(.skip-theme-anim) {
  transition: background-color var(--dur-base) var(--ease-out-soft),
              color var(--dur-base) var(--ease-out-soft),
              border-color var(--dur-base) var(--ease-out-soft),
              box-shadow var(--dur-base) var(--ease-out-soft),
              border-radius var(--dur-base) var(--ease-out-soft),
              transform var(--dur-base) var(--ease-out-soft) !important;
}
html::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-tooltip);
  opacity: var(--theme-grain);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.8 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
  transition: opacity var(--dur-base) var(--ease-out-soft);
}
@media (prefers-reduced-motion: reduce) {
  :root { --theme-motion-scale: 0; }
  html::after { display: none; }
}
html {
  scrollbar-color: color-mix(in oklab, var(--color-primary) 30%, var(--surface-2)) transparent;
  scrollbar-width: thin;
}
*::-webkit-scrollbar { width: 10px; height: 10px; background: transparent; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: color-mix(in oklab, var(--color-primary) 26%, var(--surface-2));
  border-radius: var(--theme-radius-pill);
  border: 2px solid var(--surface-0);
  transition: background var(--dur-fast) var(--ease-out-soft);
}
*::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--color-primary) 50%, var(--surface-2));
}
*::-webkit-scrollbar-corner { background: transparent; }

/* ==== themes/_base ==== */
svg { stroke-linecap: round; stroke-linejoin: round; }

/* ==== themes/monolith ==== */
[data-theme="monolith"] {
  --surface-void:  #07080A;
  --surface-0:     #141619;
  --surface-1:     #1A1D21;
  --surface-2:     #2C2E3A;
  --surface-3:     #383B47;
  --surface-inset: #0E1013;
  --ink-high:    #F5F6F7;
  --ink-mid:     rgba(245, 246, 247, 0.72);
  --ink-low:     rgba(245, 246, 247, 0.5);
  --ink-whisper: rgba(245, 246, 247, 0.3);
  --line-soft:   rgba(179, 180, 189, 0.08);
  --line-mid:    rgba(179, 180, 189, 0.18);
  --line-strong: rgba(179, 180, 189, 0.32);
  --color-primary:   #0A21C0;
  --color-accent:    #5271FF;
  --color-link:      #8490E0;
  --color-secondary: #050A44;
  --ff-theme-display: "Space Grotesk", "Figtree", ui-sans-serif, sans-serif;
  --ff-theme-body:    "Space Grotesk", "Figtree", ui-sans-serif, sans-serif;
  --ff-theme-mono:    "JetBrains Mono", ui-monospace, monospace;
  --wght-display: 620; --wght-display-hero: 680; --wght-body: 420; --wght-body-strong: 640;
  --theme-display-tracking: -0.03em; --theme-body-tracking: -0.005em; --theme-display-case: none;
  --theme-radius-card: 6px; --theme-radius-btn: 6px; --theme-radius-pill: 9999px;
  --theme-radius-input: 6px; --theme-radius-inset: 4px;
  --theme-density: 1; --theme-motion-scale: 0.85; --theme-grain: 0;
  --theme-border-width: 1px; --theme-surface-alpha: 1; --theme-card-blur: 0px;
  --theme-bento-gap: var(--sp-3); --theme-offset-y: 0px;
  color-scheme: dark;
}
[data-theme="monolith"] .card--emphasis {
  background: var(--surface-1);
  border-left: 3px solid var(--color-primary);
  box-shadow: none;
}
[data-theme="monolith"]    svg { stroke-width: 1.75; }
[data-theme="monolith"]    { --theme-tilt: 0.8deg;  }

/* ==== layouts ==== */
[data-theme="atelier"] h1,
[data-theme="atelier"] h2 { font-style: italic; }
[data-theme="atelier"] .lead:first-of-type::first-letter {
  font-family: var(--ff-theme-display);
  font-size: 3em;
  float: left;
  line-height: 0.8;
  margin: 0.1em 0.15em 0 0;
  color: var(--color-primary);
  font-style: italic;
  font-variation-settings: "opsz" 144, "SOFT" 0, "WONK" 1, "wght" 440;
}
[data-theme="atelier"] .section-head { border-bottom: 1px solid var(--line-mid); padding-bottom: var(--sp-4); }
[data-theme="atelier"] .site-footer { background: var(--surface-0); }
[data-theme="atelier"] .card__icon {
  background: transparent;
  color: var(--color-primary);
  box-shadow: none;
  border: 1px solid var(--line-mid);
  border-radius: 2px;
}
[data-theme="halcyon"] .container { max-width: 1180px; }
[data-theme="halcyon"] .section-head { text-transform: uppercase; letter-spacing: 0.02em; }
[data-theme="halcyon"] .divider { background: linear-gradient(90deg, transparent, var(--color-accent), transparent); height: 2px; }
[data-theme="halcyon"] .card { background-image: linear-gradient(180deg, transparent 0%, transparent calc(100% - 1px), var(--color-accent) 100%); background-size: 24px 1px; background-repeat: no-repeat; background-position: bottom left; }
[data-theme="halcyon"] .card__icon {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 0;
}
[data-theme="halcyon"] .stat__num { font-variant-numeric: slashed-zero tabular-nums; }
[data-theme="aurora-noir"] .section.ambient .section-head,
[data-theme="aurora-noir"] .section.ambient > .container > div[data-reveal]:first-child { text-align: center; margin-inline: auto; }
[data-theme="aurora-noir"] .section.ambient h1,
[data-theme="aurora-noir"] .section.ambient > .container > div[data-reveal]:first-child > .lead { margin-inline: auto; }
[data-theme="aurora-noir"] .section.ambient .btn-row { justify-content: center; }
[data-theme="aurora-noir"] h1, [data-theme="aurora-noir"] h2 { text-shadow: 0 0 24px color-mix(in oklab, var(--color-primary) 35%, transparent); }
[data-theme="aurora-noir"] .card__icon {
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--color-primary), 0 0 16px -2px color-mix(in oklab, var(--color-primary) 60%, transparent);
}
[data-theme="firefly"] .blob { opacity: 0.6; filter: blur(38px); }
[data-theme="firefly"] .card { border-width: 2px; }
[data-theme="firefly"] .card__icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #FFFFFF;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}
[data-theme="firefly"] .btn--primary,
[data-theme="firefly"] .btn--accent { text-transform: uppercase; letter-spacing: 0.04em; }
[data-theme="biomorph"] .card__icon { border-radius: 42% 58% 50% 50%; }
[data-theme="biomorph"] .section-head { padding-left: var(--sp-4); border-left: 2px solid color-mix(in oklab, var(--color-primary) 50%, transparent); }
[data-theme="biomorph"] .blob { filter: blur(60px); opacity: 0.6; }
[data-theme="monolith"] .section-head { border-bottom: 2px solid var(--line-mid); padding-bottom: var(--sp-4); }
[data-theme="monolith"] .card__icon { border-radius: 4px; border: 1px solid color-mix(in oklab, var(--color-primary) 30%, var(--line-mid)); background: color-mix(in oklab, var(--color-primary) 8%, var(--surface-2)); }
[data-theme="monolith"] .stat__num { font-variant-numeric: tabular-nums; }
[data-theme="aurora-noir"] .card__icon svg { filter: drop-shadow(0 0 8px color-mix(in oklab, var(--color-primary) 60%, transparent)); }
[data-theme="firefly"]     .card__icon svg { filter: drop-shadow(0 1px 2px rgba(0,0,0,0.25)); }
[data-theme="biomorph"]    .card__icon svg { filter: drop-shadow(0 2px 4px color-mix(in oklab, var(--color-primary) 35%, transparent)); }
[data-theme="atelier"]     .watermark { opacity: 0.05; }
[data-theme="atelier"]     .watermark-host:hover .watermark { opacity: 0.10; }
[data-theme="firefly"]     .watermark { opacity: 0.10; }
[data-theme="firefly"]     .watermark-host:hover .watermark { opacity: 0.18; }
[data-theme="aurora-noir"] .watermark { opacity: 0.08; }
[data-theme="aurora-noir"] .watermark svg { filter: drop-shadow(0 0 12px color-mix(in oklab, var(--color-primary) 40%, transparent)); }

/* ==== reset ==== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html, body { height: 100%; }
html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}
body {
  font-family: var(--ff-body);
  font-size: var(--fs-md);
  line-height: var(--lh-body);
  letter-spacing: var(--tracking-body);
  color: var(--ink-high);
  background: var(--surface-0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis: none;
  font-optical-sizing: auto;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
  transition: background var(--dur-base) var(--ease-out-soft),
              color var(--dur-base) var(--ease-out-soft);
}
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
input, textarea, select { background: none; border: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
table { border-collapse: collapse; border-spacing: 0; }
:focus { outline: 0; }
:focus-visible {
  outline: 0;
  box-shadow: var(--focus-ring);
  border-radius: var(--r-sm);
}
::selection { background: var(--color-primary); color: #05131D; }
hr { border: 0; border-top: 1px solid var(--line-mid); margin: var(--sp-6) 0; }
[hidden] { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ==== typography ==== */
html, body {
  font-family: var(--ff-theme-body);
  font-weight: var(--wght-body);
  letter-spacing: var(--theme-body-tracking);
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-theme-display);
  color: var(--ink-high);
  line-height: var(--lh-tight);
  letter-spacing: var(--theme-display-tracking);
  font-variation-settings: "opsz" var(--frau-opsz), "SOFT" var(--frau-soft), "WONK" var(--frau-wonk), "wght" var(--wght-display);
  font-weight: var(--wght-display);
  text-transform: var(--theme-display-case, none);
  text-wrap: balance;
}
h1 {
  font-size: clamp(2.25rem, 1.4rem + 4.2vw, var(--fs-6xl));
  font-variation-settings: "opsz" var(--frau-opsz), "SOFT" var(--frau-soft), "WONK" var(--frau-wonk), "wght" var(--wght-display-hero);
  font-weight: var(--wght-display-hero);
}
h2 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, var(--fs-4xl)); }
h3, .h3-look { font-size: clamp(1.375rem, 1rem + 1.6vw, var(--fs-3xl)); }
h4, .h4-look { font-size: var(--fs-xl); font-weight: calc(var(--wght-display) + 60); }
h5, .h5-look { font-size: var(--fs-lg); font-weight: calc(var(--wght-display) + 80); }
h6, .site-footer__heading, .theme-picker__heading {
  font-family: var(--ff-theme-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-low);
}
p {
  color: var(--ink-mid);
  text-wrap: pretty;
  max-width: 68ch;
  font-weight: var(--wght-body);
}
p + p { margin-top: var(--sp-3); }
p.lead {
  font-size: var(--fs-lg);
  color: var(--ink-high);
  line-height: 1.5;
  max-width: 62ch;
  font-weight: calc(var(--wght-body) + 20);
}
strong, b { font-weight: var(--wght-body-strong); color: var(--ink-high); }
em, i { font-style: italic; }
code, kbd, samp {
  font-family: var(--ff-theme-mono);
  font-size: 0.92em;
  padding: 0.15em 0.4em;
  border-radius: var(--theme-radius-inset);
  background: var(--surface-inset);
  color: var(--color-link);
  text-transform: none;
}
a.link, .prose a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-color: color-mix(in oklab, var(--color-link) 40%, transparent);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur-fast) var(--ease-out-soft);
}
a.link:hover, .prose a:hover { text-decoration-color: var(--color-link); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--ff-theme-mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-low);
  margin-bottom: var(--sp-3);
  font-weight: 500;
}
h2.eyebrow { font-variation-settings: normal; letter-spacing: 0.16em; line-height: inherit; }
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}
.mono { font-family: var(--ff-theme-mono); letter-spacing: 0.01em; }
.display-xl {
  font-family: var(--ff-theme-display);
  font-size: clamp(3rem, 2rem + 6vw, 7rem);
  line-height: 0.98;
  font-variation-settings: "opsz" var(--frau-opsz), "SOFT" var(--frau-soft), "WONK" var(--frau-wonk), "wght" var(--wght-display-hero);
  font-weight: var(--wght-display-hero);
  letter-spacing: var(--theme-display-tracking);
  text-transform: var(--theme-display-case, none);
}
.tracked-tight { letter-spacing: -0.02em; }
.tracked-loose { letter-spacing: 0.12em; text-transform: uppercase; }
.text-high    { color: var(--ink-high); }
.text-mid     { color: var(--ink-mid); }
.text-low     { color: var(--ink-low); }
.text-whisper { color: var(--ink-whisper); }
.text-primary { color: var(--color-primary); }
.text-accent  { color: var(--color-accent); }
.text-center  { text-align: center; }
.grad-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.card--emphasis .grad-text {
  background: none;
  -webkit-text-fill-color: currentColor;
  color: inherit;
}
[data-theme="firefly"]  .card--emphasis .grad-text { color: #1A0628; }
[data-theme="atelier"]  .card--emphasis .grad-text { color: var(--color-primary); }
[data-theme="halcyon"]  .card--emphasis .grad-text { color: var(--color-accent); }
[data-theme="biomorph"] .card--emphasis .grad-text { color: var(--color-primary); }
.prose { max-width: 68ch; color: var(--ink-mid); }
.prose h2, .prose h3 { margin-top: var(--sp-8); margin-bottom: var(--sp-4); color: var(--ink-high); }
.prose p, .prose ul, .prose ol { margin-bottom: var(--sp-4); }
.prose ul li, .prose ol li { margin-left: 1.25em; list-style: disc; }
.prose ol li { list-style: decimal; }

/* ==== surfaces ==== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.wrap-narrow  { max-width: 68ch; margin-inline: auto; }
.wrap-reading { max-width: 76ch; }
.section {
  padding-block: clamp(var(--sp-8), 8vw, var(--sp-12));
  position: relative;
}
.section--tight { padding-block: clamp(var(--sp-6), 5vw, var(--sp-9)); }
.section--flush { padding-top: 0; }
.section-head {
  max-width: 62ch;
  margin-bottom: var(--sp-8);
}
.section-head p { margin-top: var(--sp-3); color: var(--ink-mid); font-size: var(--fs-lg); }
.section-head.center { margin-inline: auto; text-align: center; }
.surface {
  background: color-mix(in oklab, var(--surface-1) calc(var(--theme-surface-alpha) * 100%), transparent);
  border: var(--theme-border-width) solid var(--line-soft);
  border-radius: var(--theme-radius-card);
  box-shadow: var(--shadow-sm), var(--shadow-inner);
}
.card {
  position: relative;
  background: color-mix(in oklab, var(--surface-1) calc(var(--theme-surface-alpha) * 100%), transparent);
  border: var(--theme-border-width) solid var(--line-soft);
  border-radius: var(--theme-radius-card);
  padding: calc(var(--sp-6) * var(--theme-density));
  box-shadow: var(--shadow-md), var(--shadow-inner);
  backdrop-filter: blur(var(--theme-card-blur));
  -webkit-backdrop-filter: blur(var(--theme-card-blur));
  transform: perspective(1200px) rotateX(0) rotateY(0) translateY(0) translateZ(0);
  transform-style: preserve-3d;
  transition: transform var(--dur-base) var(--ease-out-soft),
              box-shadow var(--dur-base) var(--ease-out-soft),
              border-color var(--dur-base) var(--ease-out-soft),
              border-radius var(--dur-base) var(--ease-out-soft);
  isolation: isolate;
}
.card:hover {
  transform:
    perspective(1200px)
    rotateX(calc(var(--tilt-x, var(--theme-tilt, 1.5deg) * -1)))
    rotateY(var(--tilt-y, var(--theme-tilt, 1.5deg)))
    translateY(-4px)
    translateZ(6px);
  box-shadow: var(--shadow-lift), var(--shadow-inner);
  border-color: var(--line-mid);
}
.card--flat   { box-shadow: none; background: var(--surface-2); }
.card--inset  { background: var(--surface-inset); box-shadow: inset 0 1px 0 var(--line-soft); }
.card--quiet  { background: transparent; box-shadow: none; }
.card--glass {
  background: color-mix(in oklab, var(--surface-1) 40%, transparent);
  backdrop-filter: blur(calc(18px + var(--theme-card-blur))) saturate(160%);
  -webkit-backdrop-filter: blur(calc(18px + var(--theme-card-blur))) saturate(160%);
  border: 1px solid color-mix(in oklab, var(--ink-high) 10%, var(--line-soft));
  box-shadow: var(--shadow-md), inset 0 1px 0 color-mix(in oklab, var(--ink-high) 8%, transparent);
}
.card--glow {
  box-shadow: var(--shadow-lift), var(--shadow-glow), var(--shadow-inner);
  border-color: color-mix(in oklab, var(--color-primary) 40%, var(--line-mid));
}
.card--emphasis {
  background: var(--surface-1);
  border: calc(var(--theme-border-width) + 0.5px) solid color-mix(in oklab, var(--color-primary) 40%, var(--line-mid));
}
.card--xl { padding: calc(var(--sp-8) * var(--theme-density)); }
.card__icon {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--theme-radius-input);
  background: color-mix(in oklab, var(--color-primary) 14%, var(--surface-2));
  color: var(--color-primary);
  margin-bottom: var(--sp-4);
  box-shadow: var(--shadow-inner);
}
.card__icon > i { width: 22px; height: 22px; }
.card__icon--accent    { background: color-mix(in oklab, var(--color-accent) 14%, var(--surface-2)); color: var(--color-accent); }
.card__icon--secondary { background: color-mix(in oklab, var(--color-secondary) 14%, var(--surface-2)); color: var(--color-secondary); }
.card__title { margin-bottom: var(--sp-2); }
.card__meta  { display: inline-flex; align-items: center; gap: var(--sp-2); font-family: var(--ff-theme-mono); font-size: var(--fs-xs); color: var(--ink-low); margin-bottom: var(--sp-2); }
.card__list { margin-top: var(--sp-4); display: grid; gap: var(--sp-2); }
.card__list li {
  display: flex; align-items: flex-start; gap: var(--sp-2);
  color: var(--ink-mid); font-size: var(--fs-sm);
}
.card__list li > i { width: 16px; height: 16px; color: var(--color-primary); flex-shrink: 0; margin-top: 3px; }
.panel-blur {
  background: color-mix(in oklab, var(--surface-1) 72%, transparent);
  backdrop-filter: blur(calc(22px + var(--theme-card-blur))) saturate(140%);
  -webkit-backdrop-filter: blur(calc(22px + var(--theme-card-blur))) saturate(140%);
  border: var(--theme-border-width) solid var(--line-soft);
  border-radius: var(--theme-radius-card);
}
.sheen { position: relative; overflow: hidden; isolation: isolate; }
.sheen::after {
  content: "";
  position: absolute; inset: -40% -20% auto auto;
  width: 60%; aspect-ratio: 1;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--color-primary) 18%, transparent), transparent 70%);
  z-index: -1; pointer-events: none;
}
.bento {
  display: grid;
  gap: var(--theme-bento-gap);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: minmax(120px, auto);
  transition: gap var(--dur-base) var(--ease-out-soft);
}
.bento > .cell        { grid-column: span 6; }
.bento > .cell--sm    { grid-column: span 4; }
.bento > .cell--md    { grid-column: span 6; }
.bento > .cell--lg    { grid-column: span 8; }
.bento > .cell--wide  { grid-column: span 12; }
.bento > .cell--third { grid-column: span 4; }
.bento > .cell--quart { grid-column: span 3; }
.bento > .cell        { transition: transform var(--dur-slow) var(--ease-out-soft), border-radius var(--dur-base) var(--ease-out-soft); }
@media (max-width: 960px) {
  .bento > .cell, .bento > .cell--sm, .bento > .cell--md, .bento > .cell--lg,
  .bento > .cell--wide, .bento > .cell--third, .bento > .cell--quart { grid-column: span 12; transform: none !important; }
}
.ambient { position: relative; isolation: isolate; overflow: hidden; }
.ambient::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 140%;
  background:
    radial-gradient(ellipse at 20% 10%, color-mix(in oklab, var(--color-primary) 24%, transparent), transparent 60%),
    radial-gradient(ellipse at 90% 80%, color-mix(in oklab, var(--color-accent) 18%, transparent), transparent 55%),
    var(--surface-0);
  z-index: -1;
}
.blob {
  position: absolute;
  border-radius: 42% 58% 55% 45% / 48% 42% 58% 52%;
  filter: blur(48px);
  opacity: 0.45;
  z-index: -1;
  pointer-events: none;
  animation: blob-drift 18s var(--ease-in-out) infinite alternate;
  transition: transform var(--dur-base) var(--ease-out-soft);
  will-change: transform;
}
.ambient:hover .blob {
  transform: translate3d(var(--mouse-x, 0), var(--mouse-y, 0), 0);
  animation-play-state: paused;
}
.blob--primary { background: var(--color-primary); }
.blob--accent  { background: var(--color-accent); }
.blob--secondary { background: var(--color-secondary); }
@keyframes blob-drift {
  0%   { transform: translate(0,0) scale(1) rotate(0deg);  border-radius: 42% 58% 55% 45% / 48% 42% 58% 52%; }
  50%  { transform: translate(3%, -4%) scale(1.08) rotate(12deg); border-radius: 58% 42% 45% 55% / 42% 58% 48% 52%; }
  100% { transform: translate(-2%, 2%) scale(0.96) rotate(-8deg); border-radius: 48% 52% 52% 48% / 58% 42% 52% 48%; }
}
.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--color-primary) 40%, transparent);
  animation: dot-pulse 2.2s var(--ease-out-soft) infinite;
}
.dot--live   { background: var(--brand-leaf); }
.dot--warn   { background: var(--brand-amber); }
.dot--danger { background: var(--brand-rose); }
.dot--info   { background: var(--brand-sky); }
.dot--muted  { background: var(--ink-whisper); animation: none; }
@keyframes dot-pulse {
  0%   { box-shadow: 0 0 0 0   color-mix(in oklab, var(--color-primary) 45%, transparent); }
  70%  { box-shadow: 0 0 0 10px color-mix(in oklab, var(--color-primary) 0%,  transparent); }
  100% { box-shadow: 0 0 0 0   color-mix(in oklab, var(--color-primary) 0%,  transparent); }
}
.pill {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--theme-radius-pill);
  background: var(--surface-2);
  border: var(--theme-border-width) solid var(--line-mid);
  font-size: var(--fs-xs);
  font-family: var(--ff-theme-mono);
  letter-spacing: 0.04em;
  color: var(--ink-mid);
  transition: background var(--dur-fast) var(--ease-out-soft), border-color var(--dur-fast) var(--ease-out-soft);
}
.pill:hover    { border-color: var(--line-strong); }
.pill--primary { color: var(--color-primary); border-color: color-mix(in oklab, var(--color-primary) 32%, transparent); background: color-mix(in oklab, var(--color-primary) 12%, var(--surface-2)); }
.pill--accent  { color: var(--color-accent);  border-color: color-mix(in oklab, var(--color-accent) 32%, transparent);  background: color-mix(in oklab, var(--color-accent) 12%, var(--surface-2));  }
.pill--success { color: var(--brand-leaf);    border-color: color-mix(in oklab, var(--brand-leaf) 32%, transparent);    background: color-mix(in oklab, var(--brand-leaf) 12%, var(--surface-2));    }
.pill--warn    { color: var(--brand-amber);   border-color: color-mix(in oklab, var(--brand-amber) 32%, transparent);   background: color-mix(in oklab, var(--brand-amber) 12%, var(--surface-2));   }
.pill--danger  { color: var(--brand-rose);    border-color: color-mix(in oklab, var(--brand-rose) 32%, transparent);    background: color-mix(in oklab, var(--brand-rose) 12%, var(--surface-2));    }
.chip {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 0.4rem 0.9rem;
  border-radius: var(--theme-radius-pill);
  background: var(--surface-2);
  border: var(--theme-border-width) solid var(--line-soft);
  font-size: var(--fs-sm);
  color: var(--ink-mid);
  transition: transform var(--dur-snap) var(--ease-spring), background var(--dur-fast) var(--ease-out-soft), color var(--dur-fast) var(--ease-out-soft);
}
.chip:hover { transform: translateY(-1px); background: var(--surface-3); color: var(--ink-high); }
.chip > .dot { width: 8px; height: 8px; background: var(--c, var(--color-primary)); animation: none; box-shadow: none; }
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-mid), transparent);
  margin: var(--sp-6) 0;
}
.stat { display: flex; flex-direction: column; gap: var(--sp-1); }
.stat__num {
  font-family: var(--ff-theme-mono);
  font-size: clamp(1.75rem, 1rem + 3vw, 3rem);
  font-weight: 600;
  color: var(--ink-high);
  letter-spacing: -0.02em;
  font-feature-settings: "tnum";
}
.stat__label {
  font-family: var(--ff-theme-mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-low);
}
.watermark-host { position: relative; overflow: hidden; }
.watermark-host > :not(.watermark) { position: relative; z-index: 1; }
.watermark {
  position: absolute;
  pointer-events: none;
  color: var(--color-primary);
  opacity: 0.07;
  z-index: 0;
  width: 260px; height: 260px;
  transition: opacity var(--dur-base) var(--ease-out-soft),
              transform var(--dur-base) var(--ease-out-soft);
}
.watermark > i, .watermark > svg, .watermark > img { width: 100%; height: 100%; display: block; }
.watermark--xs { width: 120px; height: 120px; }
.watermark--sm { width: 180px; height: 180px; }
.watermark--lg { width: 360px; height: 360px; }
.watermark--xl { width: 520px; height: 520px; }
.watermark--br     { bottom: -16px; right: -16px; }
.watermark--bl     { bottom: -16px; left: -16px; }
.watermark--tr     { top: -16px; right: -16px; }
.watermark--tl     { top: -16px; left: -16px; }
.watermark--center { top: 50%; left: 50%; transform: translate(-50%, -50%); }
.watermark--right-c { top: 50%; right: -80px; transform: translateY(-50%); }
.watermark--left-c  { top: 50%; left: -80px; transform: translateY(-50%); }
.watermark--strong { opacity: 0.14; }
.watermark--faint  { opacity: 0.04; }
.watermark--tilt     { transform: rotate(-12deg); }
.watermark--center.watermark--tilt { transform: translate(-50%, -50%) rotate(-12deg); }
.watermark--accent { color: var(--color-accent); }
.watermark--ink    { color: var(--ink-high); }
.watermark-host:hover .watermark { opacity: 0.12; }
.watermark-host:hover .watermark--faint  { opacity: 0.08; }
.watermark-host:hover .watermark--strong { opacity: 0.2; }

/* ==== controls ==== */
.btn {
  --btn-bg: var(--surface-2);
  --btn-fg: var(--ink-high);
  --btn-br: var(--line-mid);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: calc(0.75rem * var(--theme-density)) calc(1.25rem * var(--theme-density));
  font-family: var(--ff-theme-body);
  font-size: var(--fs-sm);
  font-weight: 580;
  letter-spacing: 0.01em;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: var(--theme-border-width) solid var(--btn-br);
  border-radius: var(--theme-radius-btn);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: transform var(--dur-snap) var(--ease-spring),
              box-shadow var(--dur-fast) var(--ease-out-soft),
              background var(--dur-fast) var(--ease-out-soft),
              border-color var(--dur-fast) var(--ease-out-soft),
              border-radius var(--dur-base) var(--ease-out-soft),
              color var(--dur-fast) var(--ease-out-soft);
  will-change: transform;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn > i, .btn > svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn--primary {
  --btn-bg: var(--color-primary);
  --btn-fg: var(--surface-void);
  --btn-br: transparent;
  font-weight: 660;
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.22);
}
.btn--primary:hover { box-shadow: var(--shadow-lift), inset 0 1px 0 rgba(255,255,255,0.28); }
.btn--accent {
  --btn-bg: var(--color-accent);
  --btn-fg: var(--surface-void);
  --btn-br: transparent;
  font-weight: 660;
}
.btn--ghost { --btn-bg: transparent; --btn-br: var(--line-mid); }
.btn--ghost:hover { --btn-bg: var(--surface-2); --btn-br: var(--line-strong); }
.btn--quiet { --btn-bg: transparent; --btn-br: transparent; color: var(--ink-mid); }
.btn--quiet:hover { color: var(--ink-high); --btn-bg: var(--surface-2); }
.btn--outline { --btn-bg: transparent; --btn-br: var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { --btn-bg: color-mix(in oklab, var(--color-primary) 10%, transparent); }
.btn--danger { --btn-bg: var(--brand-rose); --btn-fg: #fff; --btn-br: transparent; }
.btn--icon {
  width: 40px; height: 40px; padding: 0;
  border-radius: var(--theme-radius-btn);
}
.btn--sm { padding: calc(0.45rem * var(--theme-density)) calc(0.9rem * var(--theme-density)); font-size: var(--fs-xs); }
.btn--lg { padding: calc(0.95rem * var(--theme-density)) calc(1.75rem * var(--theme-density)); font-size: var(--fs-md); }
.btn--block { display: flex; width: 100%; }
.btn-row { display: inline-flex; flex-wrap: wrap; gap: var(--sp-3); }
.field { display: flex; flex-direction: column; gap: var(--sp-2); }
.field > label,
.field__label {
  font-size: var(--fs-2xs);
  font-family: var(--ff-theme-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-low);
  font-weight: 500;
}
.field__hint  { font-size: var(--fs-xs); color: var(--ink-low); margin-top: var(--sp-1); }
.field__error { font-size: var(--fs-xs); color: var(--brand-rose); margin-top: var(--sp-1); }
.input, .textarea, .select {
  width: 100%;
  padding: calc(0.75rem * var(--theme-density)) calc(1rem * var(--theme-density));
  font-family: var(--ff-theme-body);
  font-size: var(--fs-md);
  color: var(--ink-high);
  background: var(--surface-inset);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-input);
  box-shadow: var(--shadow-inner);
  transition: border-color var(--dur-fast) var(--ease-out-soft),
              box-shadow var(--dur-fast) var(--ease-out-soft),
              background var(--dur-fast) var(--ease-out-soft),
              border-radius var(--dur-base) var(--ease-out-soft);
}
.input::placeholder, .textarea::placeholder { color: var(--ink-whisper); }
.input:hover, .textarea:hover, .select:hover { border-color: var(--line-strong); }
.input:focus, .textarea:focus, .select:focus {
  outline: 0;
  border-color: color-mix(in oklab, var(--color-primary) 60%, var(--line-strong));
  box-shadow: var(--shadow-inner), var(--focus-ring);
  background: var(--surface-2);
}
.textarea { min-height: 120px; resize: vertical; line-height: var(--lh-body); }
.select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-low) 50%),
                    linear-gradient(135deg, var(--ink-low) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}
.switch {
  --switch-w: 44px; --switch-h: 24px;
  position: relative;
  display: inline-flex; align-items: center;
  width: var(--switch-w); height: var(--switch-h);
  background: var(--surface-inset);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-pill);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out-soft), border-color var(--dur-fast) var(--ease-out-soft);
}
.switch::after {
  content: "";
  position: absolute;
  left: 2px; top: 50%;
  width: calc(var(--switch-h) - 6px);
  height: calc(var(--switch-h) - 6px);
  border-radius: 50%;
  background: var(--ink-high);
  box-shadow: var(--shadow-sm);
  transform: translateY(-50%);
  transition: left var(--dur-base) var(--ease-spring), background var(--dur-fast) var(--ease-out-soft);
}
.switch[aria-pressed="true"] { background: var(--color-primary); border-color: transparent; }
.switch[aria-pressed="true"]::after { left: calc(100% - var(--switch-h) + 2px); background: var(--surface-void); }
.modal {
  position: fixed; inset: 0;
  display: grid; place-items: center;
  padding: var(--sp-5);
  z-index: var(--z-modal);
  background: color-mix(in oklab, var(--surface-void) 60%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: fade-in var(--dur-base) var(--ease-out-soft);
}
.modal[hidden] { display: none; }
.modal__panel {
  width: 100%;
  max-width: 560px;
  background: var(--surface-1);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-card);
  padding: var(--sp-7);
  box-shadow: var(--shadow-dialog), var(--shadow-inner);
  animation: modal-rise var(--dur-base) var(--ease-out-expo);
}
@keyframes modal-rise {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  z-index: var(--z-modal);
  background: color-mix(in oklab, var(--surface-void) 70%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--sp-5);
  overflow-y: auto;
}
.modal-overlay.active {
  display: grid;
  place-items: center;
  animation: fade-in var(--dur-base) var(--ease-out-soft);
}
.modal-container {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: var(--surface-1);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-card);
  padding: var(--sp-7);
  box-shadow: var(--shadow-dialog), var(--shadow-inner);
  animation: modal-rise var(--dur-base) var(--ease-out-expo);
}
.modal-close {
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-4);
  background: transparent;
  border: 0;
  font-size: 28px;
  line-height: 1;
  color: var(--ink-mid);
  cursor: pointer;
  padding: var(--sp-1) var(--sp-2);
  border-radius: var(--theme-radius-control);
  transition: background var(--dur-fast) var(--ease-out-soft), color var(--dur-fast) var(--ease-out-soft);
}
.modal-close:hover { background: var(--surface-2); color: var(--ink-high); }
.modal-header { margin-bottom: var(--sp-5); }
.modal-header h2 { margin: 0 0 var(--sp-1); font-size: var(--fs-xl); color: var(--ink-high); }
.modal-header p { margin: 0; color: var(--ink-mid); font-size: var(--fs-sm); }
.modal-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}
@media (max-width: 480px) { .modal-row { grid-template-columns: 1fr; } }
.modal-field { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.modal-field label { font-size: var(--fs-sm); font-weight: 500; color: var(--ink-high); }
.modal-field input,
.modal-field textarea {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface-2);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-control);
  color: var(--ink-high);
  font: inherit;
  transition: border-color var(--dur-fast) var(--ease-out-soft), box-shadow var(--dur-fast) var(--ease-out-soft);
}
.modal-field input:focus,
.modal-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-primary) 25%, transparent);
}
.modal-field textarea { resize: vertical; min-height: 80px; }
.modal-field input.invalid,
.modal-field textarea.invalid { border-color: var(--color-danger, #ef4444); }
.field-error {
  font-size: var(--fs-xs);
  color: var(--color-danger, #ef4444);
  min-height: 1em;
}
.modal-submit {
  width: 100%;
  padding: var(--sp-4);
  background: var(--color-primary);
  color: var(--surface-void);
  border: 0;
  border-radius: var(--theme-radius-control);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--dur-fast) var(--ease-out-soft), transform var(--dur-fast) var(--ease-out-soft);
}
.modal-submit:hover:not(:disabled) { opacity: 0.9; }
.modal-submit:active:not(:disabled) { transform: scale(0.98); }
.modal-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.modal-success {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: color-mix(in oklab, #22c55e 12%, var(--surface-2));
  border: var(--theme-border-width) solid color-mix(in oklab, #22c55e 35%, var(--line-mid));
  border-radius: var(--theme-radius-control);
  color: var(--ink-high);
}
.modal-success p { margin: 0; }
.modal-error {
  margin-top: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: color-mix(in oklab, var(--color-danger, #ef4444) 12%, var(--surface-2));
  border: var(--theme-border-width) solid color-mix(in oklab, var(--color-danger, #ef4444) 35%, var(--line-mid));
  border-radius: var(--theme-radius-control);
  color: var(--ink-high);
  font-size: var(--fs-sm);
}
.toast-stack {
  position: fixed;
  top: calc(env(safe-area-inset-top) + var(--sp-5));
  right: var(--sp-5);
  display: flex; flex-direction: column; gap: var(--sp-3);
  z-index: var(--z-toast);
  max-width: 420px;
  pointer-events: none;
}
.toast {
  background: var(--surface-2);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-card);
  padding: var(--sp-4) var(--sp-5);
  box-shadow: var(--shadow-lift), var(--shadow-inner);
  pointer-events: auto;
  animation: toast-in var(--dur-base) var(--ease-out-expo) both;
  display: flex; align-items: flex-start; gap: var(--sp-3);
  font-size: var(--fs-sm);
  color: var(--ink-high);
}
.toast > i { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--color-primary); }
.toast--success { border-color: color-mix(in oklab, var(--brand-leaf) 35%, var(--line-mid)); }
.toast--success > i { color: var(--brand-leaf); }
.toast--warn    { border-color: color-mix(in oklab, var(--brand-amber) 35%, var(--line-mid)); }
.toast--warn > i { color: var(--brand-amber); }
.toast--danger  { border-color: color-mix(in oklab, var(--brand-rose) 35%, var(--line-mid)); }
.toast--danger > i { color: var(--brand-rose); }
@keyframes toast-in  { from { opacity: 0; transform: translateX(20px) scale(0.97); } to { opacity: 1; transform: translateX(0) scale(1); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(20px) scale(0.97); } }
.toast--leaving { animation: toast-out var(--dur-fast) var(--ease-in-out) forwards; }

/* ==== chrome ==== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  padding: var(--sp-3) 0;
  background: color-mix(in oklab, var(--surface-0) 78%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: var(--theme-border-width) solid var(--line-soft);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
}
.site-header__logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.site-header__logo img { width: auto; height: 40px; }
.site-nav { display: flex; align-items: center; gap: var(--sp-1); }
.site-nav__link {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px;
  padding: 0.45rem 0.7rem;
  border-radius: var(--theme-radius-btn);
  font-size: 11px;
  font-weight: 520;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1;
  text-align: center;
  min-width: 64px;
  color: var(--ink-mid);
  transition: background var(--dur-fast) var(--ease-out-soft),
              color var(--dur-fast) var(--ease-out-soft),
              border-radius var(--dur-base) var(--ease-out-soft);
}
.site-nav__link:hover { color: var(--ink-high); background: var(--surface-2); }
.site-nav__link[aria-current="page"] {
  color: var(--ink-high);
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--line-soft);
}
.site-nav__link > i { width: 18px; height: 18px; }
.site-nav__link > span { font-size: 11px; }
@media (max-width: 820px) {
  .site-nav__link > span { display: none; }
  .site-nav__link { padding: 0.45rem; min-width: auto; }
}
.theme-picker {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 4px 6px;
  border-radius: var(--theme-radius-pill);
  background: var(--surface-2);
  border: var(--theme-border-width) solid var(--line-soft);
  position: relative;
}
.theme-picker__trigger {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 4px 10px;
  border-radius: var(--theme-radius-pill);
  background: transparent;
  color: var(--ink-mid);
  font-size: var(--fs-xs);
  font-family: var(--ff-theme-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out-soft);
}
.theme-picker__trigger:hover { color: var(--ink-high); }
.theme-picker__trigger > i { width: 14px; height: 14px; }
.theme-chip {
  --c1: var(--color-primary);
  --c2: var(--color-accent);
  --c3: var(--surface-0);
  position: relative;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: conic-gradient(from 45deg, var(--c1) 0 33%, var(--c2) 33% 66%, var(--c3) 66% 100%);
  border: 2px solid transparent;
  box-shadow: 0 0 0 1px var(--line-mid), var(--shadow-sm);
  cursor: pointer;
  transition: transform var(--dur-snap) var(--ease-spring),
              border-color var(--dur-fast) var(--ease-out-soft),
              box-shadow var(--dur-fast) var(--ease-out-soft);
  display: inline-block;
  padding: 0;
}
.theme-chip:hover { transform: scale(1.1); box-shadow: 0 0 0 1px var(--line-strong), var(--shadow-md); }
.theme-chip[aria-checked="true"] {
  border-color: var(--ink-high);
  box-shadow: 0 0 0 1px var(--line-strong), 0 0 0 3px var(--surface-0), 0 0 0 4px var(--ink-high);
  transform: scale(1.1);
}
.theme-picker__menu {
  position: absolute;
  top: calc(100% + var(--sp-2));
  right: 0;
  min-width: 320px;
  padding: var(--sp-4);
  background: var(--surface-1);
  border: var(--theme-border-width) solid var(--line-mid);
  border-radius: var(--theme-radius-card);
  box-shadow: var(--shadow-dialog);
  display: none;
  z-index: var(--z-overlay);
  animation: fade-in var(--dur-fast) var(--ease-out-soft);
}
.theme-picker[data-open="true"] .theme-picker__menu { display: block; }
.theme-picker__menu h6, .theme-picker__heading { font-size: var(--fs-2xs); margin-bottom: var(--sp-3); color: var(--ink-low); }
.theme-picker__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); }
.theme-picker__item {
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-2);
  padding: var(--sp-3);
  border-radius: var(--theme-radius-card);
  background: transparent;
  border: var(--theme-border-width) solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out-soft), border-color var(--dur-fast) var(--ease-out-soft);
  text-align: center;
}
.theme-picker__item:hover { background: var(--surface-2); border-color: var(--line-soft); }
.theme-picker__item[aria-checked="true"] { border-color: color-mix(in oklab, var(--color-primary) 50%, var(--line-mid)); background: color-mix(in oklab, var(--color-primary) 10%, var(--surface-2)); }
.theme-picker__item-name { font-size: var(--fs-xs); color: var(--ink-high); font-weight: 560; }
.site-footer {
  margin-top: var(--sp-11);
  padding: var(--sp-9) 0 var(--sp-6);
  background: color-mix(in oklab, var(--surface-1) 95%, var(--surface-void));
  border-top: var(--theme-border-width) solid var(--line-soft);
  position: relative;
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-6);
  padding-bottom: var(--sp-8);
  border-bottom: var(--theme-border-width) solid var(--line-soft);
}
@media (max-width: 860px) { .site-footer__inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .site-footer__inner { grid-template-columns: 1fr; } }
.site-footer__brand img { width: 48px; height: 48px; margin-bottom: var(--sp-3); border-radius: var(--theme-radius-input); }
.site-footer__brand p { color: var(--ink-mid); max-width: 32ch; }
.site-footer__col h6, .site-footer__heading { color: var(--ink-low); margin-bottom: var(--sp-3); }
.site-footer__col p {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--ink-mid);
  margin-top: var(--sp-2);
}
.site-footer__col p > i { width: 14px; height: 14px; color: var(--color-primary); flex-shrink: 0; }
.site-footer__col a { color: var(--ink-mid); transition: color var(--dur-fast) var(--ease-out-soft); }
.site-footer__col a:hover { color: var(--color-primary); }
.site-footer__bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: var(--sp-4);
  font-size: var(--fs-xs);
  color: var(--ink-low);
}
.site-footer__bottom p { color: var(--ink-low); }
.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: var(--color-primary);
  color: var(--surface-void);
  border-radius: var(--theme-radius-btn);
  font-weight: 600;
  z-index: calc(var(--z-header) + 1);
}
.skip-link:focus { left: var(--sp-4); }

/* ==== anim ==== */
@keyframes fade-in  { from { opacity: 0; } to { opacity: 1; } }
@keyframes rise-in  { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scale-in { from { opacity: 0; transform: scale(0.96); } to { opacity: 1; transform: scale(1); } }
@keyframes slide-left  { from { opacity: 0; transform: translateX(-24px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slide-right { from { opacity: 0; transform: translateX(24px); }  to { opacity: 1; transform: translateX(0); } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes shimmer { from { background-position: -200% 0; } to { background-position: 200% 0; } }
@keyframes type-breathe {
  0%, 100% { font-variation-settings: "wght" calc(var(--wght-display-hero) - 20), "SOFT" var(--frau-soft), "opsz" var(--frau-opsz), "WONK" var(--frau-wonk); }
  50%      { font-variation-settings: "wght" calc(var(--wght-display-hero) + 10), "SOFT" calc(var(--frau-soft) + 30), "opsz" var(--frau-opsz), "WONK" var(--frau-wonk); }
}
@keyframes orbit { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-slow) var(--ease-out-expo);
  will-change: opacity, transform;
}
[data-reveal="in"] { opacity: 1; transform: none; }
[data-reveal="fade"]    { transform: none; }
[data-reveal="slide-l"] { transform: translateX(-24px); }
[data-reveal="slide-r"] { transform: translateX(24px); }
[data-reveal="scale"]   { transform: scale(0.96); }
[data-reveal-delay="1"] { transition-delay: calc(60ms  * var(--theme-motion-scale)); }
[data-reveal-delay="2"] { transition-delay: calc(140ms * var(--theme-motion-scale)); }
[data-reveal-delay="3"] { transition-delay: calc(220ms * var(--theme-motion-scale)); }
[data-reveal-delay="4"] { transition-delay: calc(320ms * var(--theme-motion-scale)); }
[data-reveal-delay="5"] { transition-delay: calc(440ms * var(--theme-motion-scale)); }
[data-reveal-delay="6"] { transition-delay: calc(580ms * var(--theme-motion-scale)); }
.kinetic {
  display: inline-block;
  animation: type-breathe calc(7s / max(var(--theme-motion-scale), 0.4)) var(--ease-in-out) infinite;
}
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
  border-radius: var(--theme-radius-inset);
  color: transparent;
  pointer-events: none;
}
.float-slow { animation: float 9s var(--ease-in-out) infinite; }
.spin-slow { animation: orbit 40s linear infinite; transform-origin: center; }
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--line-soft);
  z-index: var(--z-header);
  pointer-events: none;
}
.scroll-progress > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform-origin: left center;
  transform: scaleX(var(--progress, 0));
  transition: transform 120ms linear;
}
.theme-sweep {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-modal);
  background: linear-gradient(110deg, transparent 0 40%, var(--color-primary) 50%, transparent 60% 100%);
  opacity: 0.22;
  transform: translateX(-100%);
  animation: sweep 720ms var(--ease-out-expo) forwards;
}
@keyframes sweep { to { transform: translateX(100%); } }
.anim-fade  { animation: fade-in  var(--dur-slow) var(--ease-out-soft) both; }
.anim-rise  { animation: rise-in  var(--dur-slow) var(--ease-out-expo) both; }
.anim-scale { animation: scale-in var(--dur-slow) var(--ease-out-expo) both; }
.anim-left  { animation: slide-left  var(--dur-slow) var(--ease-out-expo) both; }
.anim-right { animation: slide-right var(--dur-slow) var(--ease-out-expo) both; }
@media (prefers-reduced-motion: reduce) {
  .kinetic, .float-slow, .spin-slow, .blob, .theme-sweep { animation: none !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
}