/* ==========================================================================
   Shardhan product site: base.css
   Owner: FOUNDATION. Page agents must NOT edit this file. Request changes instead.
   Contents
     0. Fallback font metrics (limit CLS while web fonts swap)
     1. Tokens (colour, type, space, radii, z-index, motion)
     2. Theme scopes (light paper / white / dark ink / forest)
     3. Reset
     4. Typography
     5. Layout primitives (container, section, grid, stack, cluster, split)
     6. Accessibility utilities (skip link, sr-only, focus)
     7. Components: buttons, links, eyebrow/label, badges, cards, rules,
        stats, glossary tooltip, accordion, forms, marquee, icons
     8. Live UI mock (mini portal)
     9. Shell: header, sign-in menu, mobile nav dialog, ledger ruler, footer
    10. Provisional hero + ledger backgrounds
   ========================================================================== */

/* 0. Fallback metrics ---------------------------------------------------- */
@font-face {
  font-family: "Jakarta Fallback";
  src: local("Arial"), local("Helvetica Neue"), local("Helvetica");
  size-adjust: 103%; /* Plus Jakarta Sans vs Arial: 104.9% at 400, 101.5% at 700 (measured) */
  ascent-override: 101%;
  descent-override: 21.4%;
  line-gap-override: 0%;
}
@font-face {
  font-family: "Mono Fallback";
  src: local("Menlo"), local("Consolas"), local("Courier New");
  size-adjust: 101%;
  ascent-override: 102%;
  descent-override: 30%;
  line-gap-override: 0%;
}

/* 1. Tokens -------------------------------------------------------------- */
:root {
  /* Brand palette (CONCEPT.md) */
  --ink: #06140F;
  --ink-2: #0B1F18;          /* raised surface on ink */
  --forest: #0A3A2D;
  --green: #0B5D43;
  --green-600: #0E6E50;
  --mint: #6FD1A5;
  --mint-soft: rgba(111, 209, 165, .14);
  --paper: #F4F7F9;
  --white: #FFFFFF;
  --blue: #2A73C2;
  --blue-700: #1F5C9E;
  --blue-50: #E8F1FC;
  --line: #D8E2EA;
  --line-strong: #BFCDD9;
  --text: #0F1E2A;
  --text-2: #44566A;
  --text-3: #5F7184;         /* AA on paper/white for >=14px */
  --saffron: #E0782A;        /* ONE ink-dot accent per scene. Never for text or fills. */

  /* Semantic */
  --success: #0B6B3A;  --success-bg: #E7F6EE;
  --warning: #8F5300;  --warning-bg: #FFF4E0;
  --danger:  #B42318;  --danger-bg:  #FDECEC;
  --info:    var(--blue-700); --info-bg: var(--blue-50);

  /* Type families */
  --font-display: "Plus Jakarta Sans", "Jakarta Fallback", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Plus Jakarta Sans", "Jakarta Fallback", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Mono Fallback", ui-monospace, Menlo, Consolas, monospace;

  /* Type scale (fluid, 390px to 1440px) */
  --fs-2xs: .6875rem;                                     /* 11px mono micro */
  --fs-xs: .75rem;                                        /* 12px */
  --fs-sm: .875rem;                                       /* 14px */
  --fs-base: 1rem;                                        /* 16px */
  --fs-md: clamp(1.0625rem, 1.01rem + .22vw, 1.1875rem);  /* 17 to 19 */
  --fs-lead: clamp(1.125rem, 1.03rem + .42vw, 1.375rem);  /* 18 to 22 */
  --fs-h5: clamp(1.125rem, 1.08rem + .2vw, 1.25rem);
  --fs-h4: clamp(1.25rem, 1.15rem + .45vw, 1.5rem);
  --fs-h3: clamp(1.5rem, 1.25rem + 1.05vw, 2.125rem);
  --fs-h2: clamp(2rem, 1.45rem + 2.35vw, 3.5rem);
  --fs-h1: clamp(2.5rem, 1.7rem + 3.4vw, 4.75rem);
  --fs-display: clamp(2.875rem, 1.35rem + 6.5vw, 7.25rem);
  --fs-mega: clamp(4.5rem, 1rem + 15vw, 17rem);           /* footer wordmark */

  --lh-tight: .96;
  --lh-snug: 1.1;
  --lh-heading: 1.15;
  --lh-body: 1.6;
  --tracking-display: -.016em;
  --tracking-heading: -.011em;
  --tracking-mono: .02em;
  --tracking-caps: .14em;

  /* Spacing (4px base) */
  --space-1: .25rem;  --space-2: .5rem;   --space-3: .75rem;  --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem;  --space-7: 2rem;    --space-8: 2.5rem;
  --space-9: 3rem;    --space-10: 4rem;   --space-11: 5rem;   --space-12: 6rem;
  --space-13: 8rem;
  --gutter: clamp(1rem, .45rem + 2.3vw, 2.5rem);          /* 16px at 390 */
  --section-y: clamp(4.5rem, 2.8rem + 7vw, 9.5rem);
  --section-y-tight: clamp(3rem, 2rem + 4vw, 5.5rem);
  --container: 1280px;
  --container-wide: 1440px;
  --container-narrow: 820px;
  --measure: 62ch;
  --header-h: 72px;

  /* Radii: crisp, never blobby */
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* Elevation (static; do not animate box-shadow) */
  --shadow-1: 0 1px 2px rgba(15, 30, 42, .06), 0 1px 1px rgba(15, 30, 42, .04);
  --shadow-2: 0 2px 4px rgba(15, 30, 42, .05), 0 8px 24px -8px rgba(15, 30, 42, .14);
  --shadow-3: 0 1px 0 rgba(255,255,255,.6) inset, 0 30px 60px -24px rgba(6, 20, 15, .35), 0 12px 24px -12px rgba(6, 20, 15, .18);
  --shadow-dark: 0 30px 80px -30px rgba(0, 0, 0, .7), 0 0 0 1px rgba(111, 209, 165, .12);

  /* Z-index scale */
  --z-below: -1;
  --z-base: 0;
  --z-raised: 10;
  --z-sticky: 100;
  --z-ruler: 150;
  --z-header: 200;
  --z-dropdown: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-toast: 600;
  --z-tooltip: 700;
  --z-skip: 1000;

  /* Motion tokens (mirrored in SD.ease / SD.dur in core.js) */
  --ease-out: cubic-bezier(.16, 1, .3, 1);          /* expo.out: entrances */
  --ease-out-quart: cubic-bezier(.25, 1, .5, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);      /* sweeps, wipes */
  --ease-in: cubic-bezier(.5, 0, .75, 0);           /* exits */
  --ease-stamp: cubic-bezier(.34, 1.56, .64, 1);    /* back.out: stamps, ticks */
  --dur-1: 120ms;   /* hover colour */
  --dur-2: 200ms;   /* small UI */
  --dur-3: 320ms;   /* menus, tooltips */
  --dur-4: 520ms;   /* reveals */
  --dur-5: 800ms;   /* hero, large reveals */
  --dur-6: 1200ms;  /* long choreography cap */

  color-scheme: light;
}

/* 2. Theme scopes ---------------------------------------------------------
   Put data-theme on a full-bleed section. Components read these vars. */
:root,
[data-theme="light"] {
  --bg: var(--paper);
  --surface: var(--white);
  --surface-2: #EEF3F7;
  --fg: var(--text);
  --fg-2: var(--text-2);
  --fg-3: var(--text-3);
  --rule: var(--line);
  --rule-strong: var(--line-strong);
  --accent: var(--green);
  --accent-fg: var(--white);
  --accent-hover: var(--forest);
  --link: var(--blue-700);
  --focus: var(--green);
  --ledger-line: rgba(42, 115, 194, .14);
  --ledger-margin: rgba(180, 35, 24, .22);
}
[data-theme="white"] {
  --bg: var(--white);
  --surface: var(--paper);
  --surface-2: #F7FAFC;
}
[data-theme="dark"] {
  --bg: var(--ink);
  --surface: var(--ink-2);
  --surface-2: #0F2A20;
  --fg: #F2F7F4;
  --fg-2: rgba(226, 238, 232, .76);
  --fg-3: rgba(206, 224, 215, .62);
  --rule: rgba(111, 209, 165, .16);
  --rule-strong: rgba(111, 209, 165, .30);
  --accent: var(--mint);
  --accent-fg: var(--ink);
  --accent-hover: #8FE0BB;
  --link: var(--mint);
  --focus: #FFFFFF;
  --ledger-line: rgba(111, 209, 165, .12);
  --ledger-margin: rgba(111, 209, 165, .22);
  color-scheme: dark;
}
[data-theme="forest"] {
  --bg: var(--forest);
  --surface: #0D4535;
  --surface-2: #0F4F3D;
  --fg: #F2F7F4;
  --fg-2: rgba(232, 243, 237, .8);
  --fg-3: rgba(214, 233, 223, .68);
  --rule: rgba(111, 209, 165, .22);
  --rule-strong: rgba(111, 209, 165, .38);
  --accent: var(--mint);
  --accent-fg: var(--ink);
  --accent-hover: #8FE0BB;
  --link: #9BE6C4;
  --focus: #FFFFFF;
  --ledger-line: rgba(111, 209, 165, .14);
  --ledger-margin: rgba(111, 209, 165, .26);
  color-scheme: dark;
}
[data-theme] { background-color: var(--bg); color: var(--fg); }

/* 3. Reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
  background: var(--paper);
}
@media (prefers-reduced-motion: no-preference) { html:not(.lenis) { scroll-behavior: smooth; } }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, video, canvas, picture { display: block; max-width: 100%; }
img, video { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; letter-spacing: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
:where(ul[role="list"], ol[role="list"], .list-reset) { list-style: none; margin: 0; padding: 0; }
table { border-collapse: collapse; }
address { font-style: normal; }
[hidden] { display: none !important; }
::selection { background: rgba(111, 209, 165, .45); color: var(--ink); }
/* Lenis (inlined from lenis.css 1.3.26) */
html.lenis, html.lenis body { height: auto; }
.lenis:not(.lenis-autoToggle).lenis-stopped { overflow: clip; }
.lenis [data-lenis-prevent], .lenis [data-lenis-prevent-wheel], .lenis [data-lenis-prevent-touch] { overscroll-behavior: contain; }
.lenis.lenis-smooth iframe { pointer-events: none; }
.lenis.lenis-autoToggle { transition-property: overflow; transition-duration: 1ms; transition-behavior: allow-discrete; }

/* 4. Typography ---------------------------------------------------------- */
h1, h2, h3, h4, .display, .h1, .h2, .h3, .h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-variation-settings: "wdth" 100;
  color: var(--fg);
  text-wrap: balance;
}
.display {
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  font-weight: 620;
  font-variation-settings: "opsz" 96, "wdth" 92;
}
/* Plus Jakarta Sans sets tight word gaps; open them slightly for body and display text. */
body { word-spacing: .03em; }
h1, h2, h3, .h1, .h2, .h3, .hero__title { word-spacing: .02em; }
.mono, .label, .eyebrow, .money, code, kbd { word-spacing: normal; }
h1, .h1 { font-size: var(--fs-h1); line-height: 1.02; letter-spacing: var(--tracking-display); font-variation-settings: "opsz" 96, "wdth" 94; }
h2, .h2 { font-size: var(--fs-h2); line-height: 1.06; letter-spacing: var(--tracking-heading); font-variation-settings: "opsz" 72, "wdth" 96; }
h3, .h3 { font-size: var(--fs-h3); line-height: var(--lh-heading); letter-spacing: -.01em; font-weight: 600; }
h4, .h4 { font-size: var(--fs-h4); line-height: 1.25; letter-spacing: -.006em; font-weight: 600; }
h5, .h5 { font-family: var(--font-body); font-size: var(--fs-h5); line-height: 1.35; font-weight: 600; letter-spacing: -.005em; }
p { text-wrap: pretty; }
.lead { font-size: var(--fs-lead); line-height: 1.5; color: var(--fg-2); max-width: var(--measure); letter-spacing: -.003em; }
.body-lg { font-size: var(--fs-md); line-height: 1.6; }
.small { font-size: var(--fs-sm); line-height: 1.55; }
.micro { font-size: var(--fs-xs); line-height: 1.5; }
.text-2 { color: var(--fg-2); }
.text-3 { color: var(--fg-3); }
.mono, code, kbd, samp {
  font-family: var(--font-mono);
  font-feature-settings: "zero" 0;
  letter-spacing: var(--tracking-mono);
}
code { font-size: .92em; padding: .1em .35em; border-radius: var(--r-xs); background: var(--surface-2); }
.num, .tabular { font-variant-numeric: tabular-nums lining-nums; }
.money { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: 0; white-space: nowrap; }
.balance { text-wrap: balance; }
.measure { max-width: var(--measure); }
.accent { color: var(--accent); }
.ink-dot { color: var(--saffron); }  /* full stop / single accent dot only */
.italic-serif { font-style: italic; }
strong, b { font-weight: 600; }
.prose > * + * { margin-top: 1em; }
.prose a, .text-link { color: var(--link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .2em; }
.prose a:hover, .text-link:hover { text-decoration-thickness: 2px; }
hr { border: 0; height: 1px; background: var(--rule); margin: 0; }

/* 5. Layout primitives --------------------------------------------------- */
.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.container--wide { max-width: calc(var(--container-wide) + var(--gutter) * 2); }
.container--narrow { max-width: calc(var(--container-narrow) + var(--gutter) * 2); }
.section { position: relative; padding-block: var(--section-y); isolation: isolate; }
.section--tight { padding-block: var(--section-y-tight); }
.section--flush-top { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }
.section--bleed { overflow: clip; }
.section__head { display: grid; gap: var(--space-5); max-width: 780px; margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4.5rem); }
.section__head--center { margin-inline: auto; text-align: center; justify-items: center; }
.section__index {
  display: inline-flex; align-items: center; gap: .75em;
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: var(--tracking-caps);
  text-transform: uppercase; color: var(--fg-3);
}
.section__index::after { content: ""; width: 48px; height: 1px; background: currentColor; opacity: .5; }

.stack { display: flex; flex-direction: column; gap: var(--stack-gap, var(--space-4)); }
.stack > * { margin: 0; }
.stack--sm { --stack-gap: var(--space-2); }
.stack--lg { --stack-gap: var(--space-7); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--cluster-gap, var(--space-3)); }
.grid { display: grid; gap: var(--grid-gap, clamp(1rem, .6rem + 1.4vw, 1.75rem)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.split { display: grid; gap: clamp(2rem, 1rem + 4vw, 6rem); align-items: center; }
@media (min-width: 900px) {
  .split { grid-template-columns: 5fr 7fr; }
  .split--even { grid-template-columns: 1fr 1fr; }
  .split--reverse > :first-child { order: 2; }
  .split--top { align-items: start; }
}
.full-bleed { width: 100vw; margin-inline: calc(50% - 50vw); }
.center { text-align: center; }
.mt-auto { margin-top: auto; }

/* 6. Accessibility utilities -------------------------------------------- */
.sr-only {
  position: absolute !important; width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important; overflow: hidden !important;
  clip: rect(0 0 0 0) !important; clip-path: inset(50%) !important; white-space: nowrap !important; border: 0 !important;
}
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: var(--z-skip);
  padding: .75rem 1.1rem; border-radius: var(--r-sm);
  background: var(--ink); color: var(--white); font-weight: 600; text-decoration: none;
  transform: translateY(-160%); transition: transform var(--dur-2) var(--ease-out);
}
.skip-link:focus, .skip-link:focus-visible { transform: none; outline: 2px solid var(--mint); outline-offset: 2px; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
[data-theme="dark"] :focus-visible, [data-theme="forest"] :focus-visible { outline-color: #FFFFFF; }
main:focus { outline: none; }

/* 7. Components ---------------------------------------------------------- */
/* Icons: <svg class="icon" aria-hidden="true"><use href="assets/img/icons.svg#arrow-right"/></svg> */
.icon { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; vertical-align: -.18em; display: inline-block; }
.icon--sm { width: 1em; height: 1em; }
.icon--lg { width: 1.5em; height: 1.5em; }

/* Buttons: .btn + .btn--primary | --secondary | --ghost ; sizes --sm --lg ; add data-magnetic for the magnetic hook */
.btn {
  --btn-bg: transparent; --btn-fg: var(--fg); --btn-bd: transparent;
  --btn-h: 48px; --btn-px: 1.35rem;
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: var(--btn-h); padding: 0 var(--btn-px);
  border-radius: var(--r-pill); border: 1px solid var(--btn-bd);
  background: var(--btn-bg); color: var(--btn-fg);
  font-family: var(--font-body); font-size: .9375rem; font-weight: 600; letter-spacing: -.0025em; line-height: 1;
  text-decoration: none; white-space: nowrap; cursor: pointer; user-select: none;
  transition: background-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.btn__label { position: relative; display: inline-block; }
.btn__icon { display: inline-grid; place-items: center; transition: transform var(--dur-3) var(--ease-out); }
.btn:hover .btn__icon { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn--primary { --btn-bg: var(--accent); --btn-fg: var(--accent-fg); --btn-bd: var(--accent); }
.btn--primary:hover { --btn-bg: var(--accent-hover); --btn-bd: var(--accent-hover); }
.btn--primary .btn__icon {
  width: 26px; height: 26px; margin-right: -.55rem; border-radius: 50%;
  background: color-mix(in srgb, var(--accent-fg) 14%, transparent);
}
.btn--secondary { --btn-bg: var(--surface); --btn-fg: var(--fg); --btn-bd: var(--rule-strong); }
.btn--secondary:hover { --btn-bd: var(--fg); }
[data-theme="dark"] .btn--secondary, [data-theme="forest"] .btn--secondary { --btn-bg: rgba(255,255,255,.04); --btn-bd: rgba(255,255,255,.22); }
[data-theme="dark"] .btn--secondary:hover, [data-theme="forest"] .btn--secondary:hover { --btn-bd: rgba(255,255,255,.6); --btn-bg: rgba(255,255,255,.08); }
.btn--ghost { --btn-px: .25rem; --btn-fg: var(--fg); border-radius: var(--r-xs); }
.btn--ghost .btn__label { background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size var(--dur-3) var(--ease-out); padding-bottom: 2px; }
.btn--ghost:hover .btn__label { background-size: 100% 1px; }
.btn--sm { --btn-h: 38px; --btn-px: 1rem; font-size: .875rem; }
.btn--lg { --btn-h: 56px; --btn-px: 1.7rem; font-size: 1rem; }
.btn--block { width: 100%; }
.btn[data-magnetic] { will-change: auto; }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }

/* Links */
.link {
  color: var(--link); text-decoration: none; font-weight: 500;
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
  padding-bottom: 1px; transition: background-size var(--dur-3) var(--ease-out), color var(--dur-2);
}
.link:hover { background-size: 0 1px; background-position: 100% 100%; }
.link--quiet { color: inherit; background-size: 0 1px; }
.link--quiet:hover { background-size: 100% 1px; background-position: 0 100%; }
.link--arrow { display: inline-flex; align-items: center; gap: .4em; background: none; }
.link--arrow .icon { transition: transform var(--dur-3) var(--ease-out); }
.link--arrow:hover .icon { transform: translateX(3px); }

/* Eyebrow & label: the ledger voice */
.eyebrow {
  display: inline-flex; flex-wrap: wrap; align-items: center; gap: .35em .7em;
  font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 500;
  letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-2);
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .6; }
.eyebrow--plain::before { display: none; }
.eyebrow__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--saffron); flex: none; }
.eyebrow__sep { opacity: .45; }
.label { font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: .12em; text-transform: uppercase; color: var(--fg-3); font-weight: 500; }
.hi { font-family: var(--font-body); letter-spacing: 0; text-transform: none; }  /* Devanagari echo */

/* Badges: .badge + --success --warning --danger --info --neutral --mint ; optional .badge__dot */
.badge {
  --b-fg: var(--text-2); --b-bg: #EDF2F6; --b-bd: transparent;
  display: inline-flex; align-items: center; gap: .45em; height: 1.75em; padding: 0 .7em;
  border-radius: var(--r-pill); border: 1px solid var(--b-bd);
  background: var(--b-bg); color: var(--b-fg);
  font-family: var(--font-mono); font-size: var(--fs-2xs); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; line-height: 1; white-space: nowrap;
}
.badge__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge--success { --b-fg: var(--success); --b-bg: var(--success-bg); }
.badge--warning { --b-fg: var(--warning); --b-bg: var(--warning-bg); }
.badge--danger  { --b-fg: var(--danger);  --b-bg: var(--danger-bg); }
.badge--info    { --b-fg: var(--blue-700); --b-bg: var(--blue-50); }
.badge--neutral { --b-fg: var(--text-2); --b-bg: #EDF2F6; }
.badge--mint    { --b-fg: var(--mint); --b-bg: rgba(111,209,165,.1); --b-bd: rgba(111,209,165,.28); }
.badge--outline { --b-bg: transparent; --b-bd: var(--rule-strong); --b-fg: var(--fg-2); }
.badge--lg { font-size: var(--fs-xs); height: 2em; }
[data-theme="dark"] .badge--neutral, [data-theme="forest"] .badge--neutral { --b-fg: var(--fg-2); --b-bg: rgba(255,255,255,.07); }

/* Cards: .card (+ --dark, --interactive, --flat) ; parts __eyebrow __title __body __foot */
.card {
  position: relative; display: flex; flex-direction: column; gap: var(--space-4);
  padding: clamp(1.25rem, .9rem + 1.2vw, 2rem);
  background: var(--surface); color: var(--fg);
  border: 1px solid var(--rule); border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
  isolation: isolate;
}
.card--flat { box-shadow: none; }
.card--dark { --surface: var(--ink-2); --fg: #F2F7F4; --fg-2: rgba(226,238,232,.76); --rule: rgba(111,209,165,.16); background: var(--ink-2); color: var(--fg); }
.card__eyebrow { font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-3); }
.card__title { font-family: var(--font-display); font-size: var(--fs-h4); font-weight: 600; letter-spacing: -.0075em; line-height: 1.2; }
.card__body { color: var(--fg-2); font-size: .975rem; }
.card__foot { margin-top: auto; padding-top: var(--space-4); border-top: 1px solid var(--rule); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.card--interactive { transition: border-color var(--dur-3) var(--ease-out), transform var(--dur-4) var(--ease-out); }
.card--interactive::before {  /* cursor spotlight, positioned by --mx/--my (set by SD.tilt or your own code) */
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1; pointer-events: none;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%);
  opacity: 0; transition: opacity var(--dur-3) var(--ease-out);
}
.card--interactive:hover { border-color: var(--rule-strong); }
.card--interactive:hover::before { opacity: 1; }
a.card { text-decoration: none; }
[data-tilt] { transform-style: preserve-3d; }

/* Ledger rules: .rule | .rule--ledger (accounting double-rule) | .rule--dashed | .rule--labelled > .rule__label ; add data-draw to animate scaleX */
.rule { display: block; height: 1px; border: 0; background: var(--rule); width: 100%; transform-origin: left center; }
.rule--strong { background: var(--rule-strong); }
.rule--ledger { height: 5px; background: linear-gradient(var(--fg) 0 0) top / 100% 1px no-repeat, linear-gradient(var(--fg) 0 0) bottom / 100% 2px no-repeat; opacity: .85; }
.rule--dashed { background: repeating-linear-gradient(90deg, var(--rule-strong) 0 6px, transparent 6px 12px); }
.rule--labelled { display: flex; align-items: center; gap: var(--space-4); height: auto; background: none; font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-3); }
.rule--labelled::before, .rule--labelled::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
.rule--labelled.rule--start::before { flex: 0 0 24px; }

/* Stats (pair with data-count for the odometer) */
.stat { display: grid; gap: var(--space-2); padding-top: var(--space-4); border-top: 1px solid var(--rule); }
.stat__value { font-family: var(--font-display); font-size: clamp(2.5rem, 1.6rem + 3.2vw, 4.5rem); font-weight: 560; line-height: 1; letter-spacing: -.015em; font-variant-numeric: tabular-nums lining-nums; font-variation-settings: "opsz" 96, "wdth" 88; }
.stat__label { color: var(--fg-2); font-size: var(--fs-sm); max-width: 28ch; }
.stat__source { font-family: var(--font-mono); font-size: var(--fs-2xs); color: var(--fg-3); letter-spacing: .04em; }
/* Odometer internals (built by SD.counter) */
.odo { display: inline-flex; align-items: baseline; }
.odo__col { display: inline-block; height: 1em; line-height: 1; overflow: hidden; position: relative; }
.odo__stack { display: flex; flex-direction: column; }
.odo__stack > span { display: block; height: 1em; line-height: 1; text-align: center; }
.odo__ch { display: inline-block; }

/* Glossary tooltip: <span class="term" data-term="PF">PF</span> (core.js upgrades it to a button + role=tooltip). */
.term { text-decoration: underline dotted; text-decoration-color: color-mix(in srgb, currentColor 55%, transparent); text-underline-offset: .22em; text-decoration-thickness: 1px; }
.term-wrap { position: relative; display: inline; white-space: nowrap; }
.term-wrap .term-tip { white-space: normal; }
.term-btn { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: help; text-decoration: underline dotted; text-decoration-color: color-mix(in srgb, currentColor 60%, transparent); text-underline-offset: .22em; text-decoration-thickness: 1px; border-radius: 3px; }
.term-btn:hover { text-decoration-style: solid; }
.term-tip {
  position: absolute; left: 50%; bottom: calc(100% + 10px); z-index: var(--z-tooltip);
  width: max-content; max-width: min(320px, calc(100vw - 32px));
  padding: .75rem .9rem; border-radius: var(--r-sm);
  background: #0C2219; color: #E9F2EE; border: 1px solid rgba(111,209,165,.3);
  box-shadow: 0 12px 32px -12px rgba(0,0,0,.45);
  font-family: var(--font-body); font-size: .8125rem; font-weight: 400; line-height: 1.5; letter-spacing: 0; text-transform: none; text-align: left; white-space: normal;
  opacity: 0; visibility: hidden; transform: translate(-50%, 4px);
  transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-2);
}
.term-tip strong { display: block; font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; color: var(--mint); margin-bottom: .25rem; font-weight: 600; }
.term-tip::after { content: ""; position: absolute; left: var(--tip-arrow, 50%); top: 100%; width: 10px; height: 10px; background: #0C2219; border-right: 1px solid rgba(111,209,165,.3); border-bottom: 1px solid rgba(111,209,165,.3); transform: translate(-50%, -5px) rotate(45deg); }
/* Closed tips are display:none so they never widen the page (390px) or catch clicks; @starting-style keeps the fade-in. */
.term-wrap:not(.is-open) .term-tip { display: none; }
.term-wrap.is-open .term-tip { opacity: 1; visibility: visible; transform: translate(-50%, 0); transition-delay: 0s; }
@starting-style { .term-wrap.is-open .term-tip { opacity: 0; transform: translate(-50%, 4px); } }
.term-wrap.is-below .term-tip { bottom: auto; top: calc(100% + 10px); }
.term-wrap.is-below .term-tip::after { top: auto; bottom: 100%; transform: translate(-50%, 5px) rotate(225deg); }

/* Accordion: <div class="accordion"><details class="accordion__item"><summary class="accordion__summary">Q<span class="accordion__icon"></span></summary><div class="accordion__panel">A</div></details></div> */
.accordion { border-top: 1px solid var(--rule); }
.accordion__item { border-bottom: 1px solid var(--rule); interpolate-size: allow-keywords; }
.accordion__summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: var(--space-5);
  padding: 1.35rem 0; font-family: var(--font-display); font-size: var(--fs-h5); font-weight: 560; letter-spacing: -.005em; line-height: 1.35;
}
.accordion__summary::-webkit-details-marker { display: none; }
.accordion__summary:hover { color: var(--accent); }
[data-theme="light"] .accordion__summary:hover, :root:not([data-theme]) .accordion__summary:hover { color: var(--green); }
.accordion__icon { position: relative; width: 28px; height: 28px; flex: none; border: 1px solid var(--rule-strong); border-radius: 50%; }
.accordion__icon::before, .accordion__icon::after { content: ""; position: absolute; left: 50%; top: 50%; width: 11px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); transition: transform var(--dur-3) var(--ease-out); }
.accordion__icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.accordion__item[open] .accordion__icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.accordion__panel { padding: 0 0 1.5rem; color: var(--fg-2); max-width: 72ch; }
.accordion__item::details-content { block-size: 0; overflow: clip; transition: block-size var(--dur-4) var(--ease-out), content-visibility var(--dur-4) allow-discrete; }
.accordion__item[open]::details-content { block-size: auto; }

/* Forms */
.form { display: grid; gap: var(--space-5); }
.form__row { display: grid; gap: var(--space-5); }
@media (min-width: 700px) { .form__row--2 { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: .45rem; }
.field__label { font-size: var(--fs-sm); font-weight: 600; color: var(--fg); }
.field__label .req { color: var(--danger); margin-left: .15em; }
.field__hint { font-size: var(--fs-xs); color: var(--fg-3); }
.field__error { font-size: var(--fs-xs); color: var(--danger); font-weight: 500; display: none; }
.field--invalid .field__error { display: block; }
.input, .select, .textarea {
  width: 100%; min-height: 48px; padding: .7rem .9rem;
  background: var(--surface); color: var(--fg);
  border: 1px solid var(--rule-strong); border-radius: var(--r-sm);
  font-size: 1rem; line-height: 1.4;
  transition: border-color var(--dur-2), box-shadow var(--dur-2);
}
.textarea { min-height: 140px; resize: vertical; }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.5rem; }
.input::placeholder, .textarea::placeholder { color: var(--fg-3); opacity: 1; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--fg-3); }
.input:focus-visible, .select:focus-visible, .textarea:focus-visible { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(11,93,67,.18); }
[data-theme="dark"] .input:focus-visible, [data-theme="dark"] .select:focus-visible, [data-theme="dark"] .textarea:focus-visible { border-color: var(--mint); box-shadow: 0 0 0 3px rgba(111,209,165,.22); }
.field--invalid .input, .field--invalid .select, .field--invalid .textarea { border-color: var(--danger); }
.check { display: flex; gap: .7rem; align-items: flex-start; font-size: var(--fs-sm); color: var(--fg-2); cursor: pointer; }
.check input { appearance: none; flex: none; width: 20px; height: 20px; margin: .1rem 0 0; border: 1.5px solid var(--rule-strong); border-radius: 5px; background: var(--surface) center / 12px no-repeat; transition: background-color var(--dur-2), border-color var(--dur-2); cursor: pointer; }
.check input[type="radio"] { border-radius: 50%; }
.check input:checked { background-color: var(--green); border-color: var(--green); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 6.2 5 8.6l4.6-5.2' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.check input:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
/* Chip toggles (multi-select, e.g. states): <label class="chip-check"><input type="checkbox"><span>Bihar</span></label> */
.chip-check { position: relative; display: inline-flex; }
.chip-check input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip-check span { display: inline-flex; align-items: center; height: 34px; padding: 0 .8rem; border: 1px solid var(--rule-strong); border-radius: var(--r-pill); font-size: var(--fs-sm); background: var(--surface); transition: background-color var(--dur-2), color var(--dur-2), border-color var(--dur-2); }
.chip-check input:checked + span { background: var(--green); color: var(--white); border-color: var(--green); }
.chip-check input:focus-visible + span { outline: 2px solid var(--focus); outline-offset: 2px; }

/* Marquee: <div class="marquee" data-marquee aria-label="Statutory codes"><div class="marquee__track"><ul class="marquee__group">…</ul></div></div>
   core.js clones the group (aria-hidden + inert) and drives speed from scroll velocity. data-marquee-speed="40" (seconds per loop), data-marquee-reverse. */
.marquee { --marquee-gap: clamp(1.5rem, 1rem + 2vw, 3rem); --marquee-dur: 40s; position: relative; overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; width: max-content; gap: var(--marquee-gap); }
.marquee__group { display: flex; flex: none; gap: var(--marquee-gap); align-items: center; list-style: none; margin: 0; padding: 0; }
.marquee__item { display: inline-flex; align-items: center; gap: .6em; white-space: nowrap; font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--fg-2); letter-spacing: .04em; }
.marquee__item::before { content: ""; width: 5px; height: 5px; border: 1px solid currentColor; transform: rotate(45deg); opacity: .6; }
.marquee__item--pill { padding: .55rem 1rem; border: 1px solid var(--rule); border-radius: var(--r-pill); background: var(--surface); }
.marquee__item--pill::before { display: none; }

/* 8. Live UI mock (mini portal) -------------------------------------------
   Scale everything via --mock-scale (default 1 = 13px base). All sizes are em.
   <div class="mock mock--browser" role="img" aria-label="…">
     <div class="mock__bar"><span class="mock__dots"></span><span class="mock__url">hr.shardhanconsultants.com/client/</span></div>
     <div class="mock__app">
       <aside class="mock__side">…brand, .mock__nav > .mock__nav-item(.is-active)…</aside>
       <div class="mock__main"><header class="mock__head">….mock__tabs…</header><div class="mock__body">…cards…</div></div>
     </div>
   </div> */
.mock {
  --mock-scale: 1;
  --m-green: #0B3B2E; --m-green-2: #0E4A39; --m-green-3: #145C47;
  --m-head: #EAF2FB; --m-bg: #F5F8FB; --m-card: #FFFFFF; --m-line: #DCE5EE; --m-text: #0F1E2A; --m-text-2: #516579; --m-orange: #E0782A; --m-orange-text: #A34C12; --m-orange-light: #F3A35F;
  position: relative; font-family: var(--font-body); font-size: calc(13px * var(--mock-scale)); line-height: 1.4; color: var(--m-text);
  background: var(--m-bg); border: 1px solid rgba(15,30,42,.12); border-radius: calc(var(--r-lg) * var(--mock-scale) + 2px);
  box-shadow: var(--shadow-3); overflow: hidden; text-align: left; user-select: none;
  contain: layout paint;
}
/* .mock--3d: for mocks whose layers separate in 3D; nothing is clipped or paint-contained. */
.mock--3d { overflow: visible; contain: none; transform-style: preserve-3d; }
[data-theme="dark"] .mock, [data-theme="forest"] .mock { border-color: rgba(111,209,165,.18); box-shadow: var(--shadow-dark); }
.mock__bar { display: flex; align-items: center; gap: .9em; height: 2.6em; padding: 0 1em; background: #FFFFFF; border-bottom: 1px solid var(--m-line); }
.mock__dots { width: 3.2em; height: .7em; background: radial-gradient(circle at .35em 50%, #D5DEE7 .3em, transparent .32em), radial-gradient(circle at 1.6em 50%, #D5DEE7 .3em, transparent .32em), radial-gradient(circle at 2.85em 50%, #D5DEE7 .3em, transparent .32em); }
.mock__url { flex: 1; max-width: 26em; margin-inline: auto; height: 1.8em; display: flex; align-items: center; justify-content: center; gap: .4em; border-radius: var(--r-pill); background: var(--m-bg); color: var(--m-text-2); font-family: var(--font-mono); font-size: .8em; letter-spacing: 0; }
.mock__app { display: grid; grid-template-columns: 13.5em 1fr; min-height: 28em; }
.mock--no-side .mock__app { grid-template-columns: 1fr; }
.mock__side { background: linear-gradient(180deg, var(--m-green) 0%, #082E24 100%); color: #D7E9E0; padding: 1.1em .8em; display: flex; flex-direction: column; gap: 1.1em; }
.mock__brand { display: flex; align-items: center; gap: .6em; padding: 0 .3em; }
.mock__brand-mark { width: 2em; height: 2em; border-radius: .5em; display: grid; place-items: center; background: #0F5A44; color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 1.05em; box-shadow: inset 0 0 0 1px rgba(255,255,255,.14); }
.mock__brand-name { font-weight: 700; letter-spacing: .14em; font-size: .85em; color: #fff; line-height: 1.1; }
.mock__brand-name small { display: block; font-weight: 600; letter-spacing: .12em; font-size: .78em; color: var(--m-orange-light); margin-top: .15em; }
.mock__section-label { font-family: var(--font-mono); font-size: .68em; letter-spacing: .16em; text-transform: uppercase; color: rgba(215,233,224,.55); padding: 0 .6em; }
.mock__nav { display: grid; gap: .15em; }
.mock__nav-item { display: flex; align-items: center; gap: .7em; padding: .6em .7em; border-radius: .55em; color: #CFE3D9; font-size: .95em; }
.mock__nav-item .icon { width: 1.1em; height: 1.1em; opacity: .8; }
.mock__nav-item.is-active { background: rgba(255,255,255,.1); color: #fff; box-shadow: inset 2px 0 0 var(--m-orange); }
.mock__main { display: flex; flex-direction: column; min-width: 0; }
.mock__head { display: flex; align-items: center; justify-content: space-between; gap: 1em; padding: .8em 1.3em; background: var(--m-head); border-bottom: 1px solid var(--m-line); }
.mock__crumbs { font-size: .85em; color: var(--m-text-2); display: flex; gap: .45em; align-items: center; }
.mock__crumbs b { color: var(--m-text); font-weight: 600; }
.mock__title { font-family: var(--font-display); font-weight: 650; font-size: 1.45em; letter-spacing: -.01em; color: var(--m-text); line-height: 1.15; }
.mock__eyebrow { font-family: var(--font-mono); font-size: .68em; letter-spacing: .16em; text-transform: uppercase; color: var(--m-orange-text); font-weight: 600; }
.mock__tabs { display: flex; gap: .3em; padding: 0 1.3em; background: #fff; border-bottom: 1px solid var(--m-line); }
.mock__tab { padding: .8em .7em; font-size: .9em; font-weight: 600; color: var(--m-text-2); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.mock__tab.is-active { color: var(--m-text); border-bottom-color: var(--m-orange); }
.mock__body { padding: 1.2em 1.3em; display: grid; gap: 1em; align-content: start; }
.mock__grid { display: grid; gap: 1em; grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr)); }
.mock__card { background: var(--m-card); border: 1px solid var(--m-line); border-radius: .9em; padding: 1em 1.1em; display: grid; gap: .6em; min-width: 0; }
.mock__card--hero { background: linear-gradient(120deg, #0B3B2E, #0E4A39 60%, #11573F); color: #EAF5EF; border-color: transparent; }
.mock__card-title { font-weight: 650; font-size: 1em; letter-spacing: -.0025em; display: flex; justify-content: space-between; align-items: center; gap: .6em; }
.mock__kpi { display: grid; gap: .15em; }
.mock__kpi-value { font-family: var(--font-display); font-size: 2em; font-weight: 650; letter-spacing: -.015em; line-height: 1; font-variant-numeric: tabular-nums; }
.mock__kpi-label { font-family: var(--font-mono); font-size: .68em; letter-spacing: .14em; text-transform: uppercase; color: var(--m-text-2); }
.mock__card--hero .mock__kpi-label { color: rgba(234,245,239,.7); }
.mock__table { width: 100%; border-collapse: collapse; font-size: .9em; }
.mock__table th { text-align: left; font-family: var(--font-mono); font-size: .72em; letter-spacing: .12em; text-transform: uppercase; color: var(--m-text-2); font-weight: 600; padding: .55em .6em; border-bottom: 1px solid var(--m-line); background: #F7FAFD; }
.mock__table td { padding: .6em; border-bottom: 1px solid var(--m-line); vertical-align: middle; white-space: nowrap; }
.mock__table tr:last-child td { border-bottom: 0; }
.mock__table .num, .mock__table .money { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.mock__row { display: flex; align-items: center; gap: .8em; padding: .55em 0; border-bottom: 1px solid var(--m-line); }
.mock__row:last-child { border-bottom: 0; }
.mock__date { width: 3em; flex: none; text-align: center; border: 1px solid var(--m-line); border-radius: .6em; padding: .3em 0; line-height: 1; }
.mock__date b { display: block; font-family: var(--font-display); font-size: 1.3em; font-weight: 700; }
.mock__date small { font-family: var(--font-mono); font-size: .62em; letter-spacing: .1em; text-transform: uppercase; color: var(--m-text-2); }
.mock__chip { display: inline-flex; align-items: center; gap: .4em; padding: .3em .6em; border-radius: .5em; background: #fff; border: 1px solid var(--m-line); font-family: var(--font-mono); font-size: .75em; font-weight: 600; color: var(--m-text); white-space: nowrap; box-shadow: 0 1px 2px rgba(15,30,42,.06); }
.mock__chip::before { content: ""; width: .5em; height: .5em; border-radius: 2px; background: var(--chip, var(--green)); }
.mock__chip--pf { --chip: #0B6B3A; } .mock__chip--esi { --chip: #2A73C2; } .mock__chip--tds { --chip: #8F5300; } .mock__chip--pt { --chip: #6C4AB6; } .mock__chip--lwf { --chip: #B42318; }
.mock__avatar { width: 1.9em; height: 1.9em; border-radius: 50%; flex: none; display: grid; place-items: center; background: #A34C12; color: #fff; font-size: .72em; font-weight: 700; } /* 6.1:1 (was #F3A35F, 2.1:1) */
.mock__progress { height: .45em; border-radius: var(--r-pill); background: rgba(15,30,42,.08); overflow: hidden; }
.mock__progress > span { display: block; height: 100%; width: var(--p, 60%); background: var(--green); border-radius: inherit; transform-origin: left; }
.mock__card--hero .mock__progress { background: rgba(255,255,255,.15); }
.mock__card--hero .mock__progress > span { background: var(--mint); }
.mock__skeleton { height: .7em; border-radius: var(--r-pill); background: #E6EDF3; width: var(--w, 100%); }
.mock__status { font-family: var(--font-mono); font-size: .72em; font-weight: 600; letter-spacing: .04em; padding: .25em .6em; border-radius: var(--r-pill); display: inline-flex; align-items: center; gap: .35em; }
.mock__status--filed { color: #0B6B3A; background: #E7F6EE; }
.mock__status--pending { color: #8F5300; background: #FFF4E0; }
.mock__status--overdue { color: #B42318; background: #FDECEC; }
.mock__status--info { color: #1F5C9E; background: #E8F1FC; }
.mock .badge { font-size: .7em; }
@media (max-width: 699.98px) {
  .mock { --mock-scale: .86; }
  .mock__app { grid-template-columns: 1fr; }
  .mock__side { display: none; }
  .mock__grid { grid-template-columns: repeat(min(var(--cols, 3), 2), minmax(0, 1fr)); }
}

/* 9. Shell ---------------------------------------------------------------- */
/* Header */
.site-header {
  --hdr-fg: var(--text); --hdr-fg-2: var(--text-2); --hdr-bg: rgba(244,247,249,0); --hdr-bd: transparent;
  position: fixed; inset: 0 0 auto; z-index: var(--z-header); height: var(--header-h);
  color: var(--hdr-fg);
  view-transition-name: site-header;
  transition: transform var(--dur-4) var(--ease-out), color var(--dur-3) var(--ease-out);
}
.site-header::before { /* background layer cross-faded, never animated as a shadow */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--hdr-solid-bg, rgba(244,247,249,.82));
  border-bottom: 1px solid var(--hdr-solid-bd, rgba(15,30,42,.08));
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  opacity: 0; transition: opacity var(--dur-3) var(--ease-out);
}
.site-header.is-solid::before { opacity: 1; }
.site-header.is-hidden { transform: translateY(calc(-100% - 2px)); }
.site-header[data-tone="dark"] { --hdr-fg: #F2F7F4; --hdr-fg-2: rgba(226,238,232,.78); --hdr-solid-bg: rgba(6,20,15,.78); --hdr-solid-bd: rgba(111,209,165,.14); }
.site-header__inner { height: 100%; display: flex; align-items: center; gap: var(--space-6); }
.brand { display: inline-flex; align-items: center; gap: .85rem; text-decoration: none; color: inherit; flex: none; border-radius: 6px; }
.brand__logo { position: relative; width: 136px; height: 29px; }
.brand__logo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: left center; transition: opacity var(--dur-3) var(--ease-out); }
.brand__logo .brand__logo--light { opacity: 0; }
.site-header[data-tone="dark"] .brand__logo--dark, [data-theme="dark"] .brand__logo--dark, [data-theme="forest"] .brand__logo--dark { opacity: 0; }
.site-header[data-tone="dark"] .brand__logo--light, [data-theme="dark"] .brand__logo--light, [data-theme="forest"] .brand__logo--light { opacity: 1; }
.brand__tag { display: inline-flex; align-items: center; gap: .55rem; padding-left: .85rem; border-left: 1px solid currentColor; border-left-color: color-mix(in srgb, currentColor 25%, transparent); height: 22px; font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .18em; text-transform: uppercase; font-weight: 500; opacity: .86; }
.primary-nav { margin-left: auto; margin-right: auto; }
.primary-nav__list { display: flex; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.primary-nav__link {
  position: relative; display: inline-flex; align-items: center; height: 40px; padding: 0 .85rem;
  color: var(--hdr-fg-2); text-decoration: none; font-size: .9rem; font-weight: 500; letter-spacing: -.0025em; border-radius: 8px;
  transition: color var(--dur-2) var(--ease-out);
}
.primary-nav__link::after { content: ""; position: absolute; left: .85rem; right: .85rem; bottom: 6px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform var(--dur-3) var(--ease-out); }
.primary-nav__link:hover { color: var(--hdr-fg); }
.primary-nav__link:hover::after { transform: scaleX(1); transform-origin: left; }
.primary-nav__link[aria-current="page"] { color: var(--hdr-fg); }
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.primary-nav__link[aria-current="page"]::before { content: ""; position: absolute; left: 50%; top: 5px; width: 4px; height: 4px; border-radius: 50%; background: currentColor; transform: translateX(-50%); opacity: .7; }
.header-actions { display: flex; align-items: center; gap: .5rem; flex: none; }
.site-header .btn--primary { --btn-bg: var(--green); --btn-fg: #fff; --btn-bd: var(--green); }
.site-header .btn--primary:hover { --btn-bg: var(--forest); --btn-bd: var(--forest); }
.site-header[data-tone="dark"] .btn--primary { --btn-bg: var(--mint); --btn-fg: var(--ink); --btn-bd: var(--mint); }
.site-header[data-tone="dark"] .btn--primary:hover { --btn-bg: #8FE0BB; --btn-bd: #8FE0BB; }
.site-header .btn--sm { --btn-h: 40px; }

/* Sign-in disclosure */
.signin { position: relative; }
.signin__btn { display: inline-flex; align-items: center; gap: .4rem; height: 40px; padding: 0 .85rem; border-radius: var(--r-pill); color: var(--hdr-fg); font-size: .9rem; font-weight: 500; transition: background-color var(--dur-2); }
.signin__btn:hover { background: color-mix(in srgb, currentColor 8%, transparent); }
.signin__btn .icon { width: .95em; transition: transform var(--dur-3) var(--ease-out); }
.signin__btn[aria-expanded="true"] .icon { transform: rotate(180deg); }
.signin__panel {
  position: absolute; right: 0; top: calc(100% + 10px); z-index: var(--z-dropdown); width: 300px;
  padding: .5rem; border-radius: var(--r-md); background: #fff; color: var(--text);
  border: 1px solid rgba(15,30,42,.1); box-shadow: 0 24px 48px -20px rgba(6,20,15,.35), 0 2px 6px rgba(6,20,15,.06);
  opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.98); transform-origin: top right;
  transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3);
}
.signin.is-open .signin__panel { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.signin__item { display: grid; grid-template-columns: 36px 1fr auto; gap: .8rem; align-items: center; padding: .75rem; border-radius: var(--r-sm); text-decoration: none; color: inherit; }
.signin__item:hover, .signin__item:focus-visible { background: var(--paper); }
.signin__ico { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--success-bg); color: var(--green); }
.signin__item:nth-child(2) .signin__ico { background: var(--blue-50); color: var(--blue-700); }
.signin__title { font-weight: 600; font-size: .9rem; line-height: 1.2; }
.signin__desc { display: block; font-size: .78rem; color: var(--text-2); line-height: 1.35; margin-top: 2px; }
.signin__item > .icon { color: var(--text-3); }
.signin__note { margin: .25rem .75rem .5rem; padding-top: .6rem; border-top: 1px solid var(--line); font-size: .72rem; color: var(--text-2); line-height: 1.45; }

/* Mobile nav */
.menu-btn { display: none; align-items: center; gap: .55rem; height: 40px; padding: 0 .9rem 0 1rem; border-radius: var(--r-pill); border: 1px solid color-mix(in srgb, currentColor 22%, transparent); color: var(--hdr-fg); font-size: .875rem; font-weight: 600; }
.menu-btn__bars { position: relative; width: 16px; height: 8px; }
.menu-btn__bars::before, .menu-btn__bars::after { content: ""; position: absolute; left: 0; right: 0; height: 1.5px; background: currentColor; border-radius: 2px; }
.menu-btn__bars::before { top: 0; } .menu-btn__bars::after { bottom: 0; }
@media (max-width: 1079.98px) {
  .primary-nav, .header-actions .signin, .header-actions .btn--primary { display: none; }
  .menu-btn { display: inline-flex; }
  .header-actions { margin-left: auto; }
}
@media (max-width: 419.98px) { .brand__tag { display: none; } }

.mnav {
  position: fixed; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none; margin: 0; padding: 0; border: 0;
  background: var(--ink); color: #F2F7F4; overflow-y: auto; overscroll-behavior: contain;
}
.mnav::backdrop { background: rgba(6,20,15,.6); }
.mnav[open] { display: flex; flex-direction: column; }
.mnav__top { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); padding-inline: var(--gutter); border-bottom: 1px solid rgba(111,209,165,.14); flex: none; }
.mnav__close { display: inline-flex; align-items: center; gap: .5rem; height: 40px; padding: 0 1rem; border-radius: var(--r-pill); border: 1px solid rgba(255,255,255,.22); color: #fff; font-weight: 600; font-size: .875rem; }
.mnav__body { flex: 1; display: flex; flex-direction: column; gap: 2rem; padding: 1.5rem var(--gutter) 2rem; background: repeating-linear-gradient(180deg, transparent 0 55px, rgba(111,209,165,.09) 55px 56px); }
.mnav__list { list-style: none; margin: 0; padding: 0; }
.mnav__list li { border-bottom: 1px solid rgba(111,209,165,.14); }
.mnav__link { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: .85rem 0; color: #F2F7F4; text-decoration: none; font-family: var(--font-display); font-size: clamp(1.9rem, 1.2rem + 3.5vw, 2.6rem); font-weight: 560; letter-spacing: -.015em; line-height: 1.1; font-variation-settings: "opsz" 72, "wdth" 92; }
.mnav__link small { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; color: rgba(206,224,215,.62); font-weight: 400; }
.mnav__link[aria-current="page"] { color: var(--mint); }
.mnav__signin { display: grid; gap: .6rem; }
.mnav__signin a { display: flex; justify-content: space-between; align-items: center; padding: .9rem 1rem; border: 1px solid rgba(111,209,165,.2); border-radius: var(--r-md); color: #F2F7F4; text-decoration: none; font-weight: 600; }
.mnav__signin a > span > span { display: block; font-weight: 400; font-size: .8rem; color: rgba(206,224,215,.7); margin-top: 2px; }
.mnav .btn--primary { --btn-bg: var(--mint); --btn-fg: var(--ink); --btn-bd: var(--mint); }
html.is-locked, html.is-locked body { overflow: hidden; }

/* Ledger ruler (scroll progress at the right edge; built by core.js from [data-chapter]) */
.ledger-ruler { position: fixed; right: 18px; top: 50%; z-index: var(--z-ruler); height: min(52vh, 440px); width: 14px; transform: translateY(-50%); pointer-events: none; color: var(--ruler-fg, var(--text)); transition: color var(--dur-3), opacity var(--dur-3); }
.ledger-ruler[data-tone="dark"] { --ruler-fg: #E6F2EC; }
.ledger-ruler__track { position: absolute; right: 0; top: 0; bottom: 0; width: 1px; background: currentColor; opacity: .16; }
.ledger-ruler__fill { position: absolute; right: 0; top: 0; bottom: 0; width: 1px; background: currentColor; transform-origin: top; transform: scaleY(var(--p, 0)); opacity: .75; }
.ledger-ruler__minor { position: absolute; right: 0; top: 0; bottom: 0; width: 6px; background: repeating-linear-gradient(180deg, currentColor 0 1px, transparent 1px 12px); opacity: .14; }
.ledger-ruler__tick { position: absolute; right: 0; width: 14px; height: 1px; background: currentColor; opacity: .45; pointer-events: auto; cursor: pointer; transform: translateY(-.5px); transition: width var(--dur-3) var(--ease-out), opacity var(--dur-2); }
.ledger-ruler__tick::before { content: ""; position: absolute; inset: -8px -4px; }
.ledger-ruler__tick.is-active { width: 22px; opacity: 1; }
.ledger-ruler__label { position: absolute; right: 30px; top: 50%; transform: translate(6px, -50%); white-space: nowrap; font-family: var(--font-mono); font-size: .625rem; letter-spacing: .14em; text-transform: uppercase; opacity: 0; visibility: hidden; pointer-events: none; padding: .3em .6em; border-radius: var(--r-xs); background: var(--paper); border: 1px solid var(--line); box-shadow: var(--shadow-1); transition: opacity var(--dur-3), transform var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3); }
.ledger-ruler[data-tone="dark"] .ledger-ruler__label { background: #0C2219; border-color: rgba(111,209,165,.28); }
/* Labels show on hover of the ruler. The automatic flash on chapter change only happens when core.js
   has measured enough free gutter beside the content (.ledger-ruler.has-room), so it never covers content. */
.ledger-ruler:hover .ledger-ruler__label, .ledger-ruler.has-room.is-flash .ledger-ruler__tick.is-active .ledger-ruler__label { opacity: 1; visibility: visible; transform: translate(0, -50%); transition-delay: 0s; }
.ledger-ruler__label { padding: .3rem .55rem; border-radius: 6px; background: var(--ruler-bg, rgba(244,247,249,.92)); }
.ledger-ruler[data-tone="dark"] { --ruler-bg: rgba(6,20,15,.86); }
.ledger-ruler__hit { position: absolute; right: -12px; top: -12px; bottom: -12px; width: 40px; pointer-events: auto; }
.ledger-ruler__head { position: absolute; right: -3px; width: 7px; height: 7px; border-radius: 50%; background: currentColor; top: calc(var(--p, 0) * 100%); transform: translateY(-50%); }
@media (max-width: 899.98px) { .ledger-ruler { display: none; } }

/* Footer */
.site-footer { position: relative; overflow: clip; padding-top: clamp(4rem, 3rem + 5vw, 7.5rem); }
.site-footer__cta { display: grid; gap: var(--space-7); padding-bottom: clamp(3rem, 2rem + 4vw, 5.5rem); border-bottom: 1px solid var(--rule); }
@media (min-width: 900px) { .site-footer__cta { grid-template-columns: 1.4fr 1fr; align-items: end; } .site-footer__cta .btn-row { justify-content: flex-end; } }
.site-footer__claim { font-family: var(--font-display); font-size: var(--fs-h2); line-height: 1.04; letter-spacing: -.013em; font-weight: 560; font-variation-settings: "opsz" 96, "wdth" 92; max-width: 16ch; }
.site-footer__claim em { font-style: normal; color: var(--mint); }
.site-footer__cols { display: grid; gap: var(--space-8) var(--space-7); padding-block: clamp(2.5rem, 2rem + 3vw, 4.5rem); grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 900px) { .site-footer__cols { grid-template-columns: 1.1fr 1fr 1fr 1.6fr; } }
.site-footer h2 { font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-3); font-weight: 500; margin-bottom: 1rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.site-footer a:not(.btn) { color: var(--fg-2); text-decoration: none; font-size: .9rem; transition: color var(--dur-2); }
.site-footer a:not(.btn):hover { color: var(--fg); }
.footer-offices { grid-column: 1 / -1; }
@media (min-width: 900px) { .footer-offices { grid-column: auto; } }
.footer-offices ul { grid-template-columns: 1fr 1fr; gap: 1.1rem 1.5rem; }
.footer-office b { display: block; color: var(--fg); font-weight: 600; font-size: .9rem; }
.footer-office b small { font-family: var(--font-mono); font-size: .625rem; letter-spacing: .12em; color: var(--mint); margin-left: .4rem; font-weight: 500; }
.footer-office address { font-size: .8rem; color: var(--fg-3); line-height: 1.5; margin: .2rem 0 .3rem; }
.footer-office a { font-size: .8rem; }
.footer-contact { display: grid; gap: .3rem; margin-top: 1.4rem; }
.footer-contact a { font-family: var(--font-mono); font-size: .8rem; letter-spacing: 0; }
.site-footer__safety { display: flex; gap: .7rem; align-items: flex-start; padding: 1rem 1.1rem; border: 1px solid var(--rule); border-radius: var(--r-md); font-size: .85rem; color: var(--fg-2); max-width: 640px; }
.site-footer__safety .icon { color: var(--mint); margin-top: .15rem; }
.site-footer__bottom { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; justify-content: space-between; padding-block: 1.6rem; border-top: 1px solid var(--rule); font-size: .8rem; color: var(--fg-3); }
.site-footer__legal { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
.site-footer__legal a { font-size: .8rem; }
.motion-toggle { display: inline-flex; align-items: center; gap: .55rem; height: 34px; padding: 0 .9rem 0 .7rem; border-radius: var(--r-pill); border: 1px solid var(--rule-strong); color: var(--fg-2); font-size: .8rem; font-weight: 500; transition: border-color var(--dur-2), color var(--dur-2); }
.motion-toggle:hover { color: var(--fg); border-color: var(--fg-3); }
.motion-toggle__ico { position: relative; width: 16px; height: 16px; border-radius: 50%; border: 1px solid currentColor; display: grid; place-items: center; }
.motion-toggle__ico::before { content: ""; width: 5px; height: 6px; border-inline: 1.5px solid currentColor; }
.motion-toggle[aria-pressed="true"] .motion-toggle__ico::before { width: 0; height: 0; border: 0; border-left: 5px solid currentColor; border-top: 3.5px solid transparent; border-bottom: 3.5px solid transparent; margin-left: 2px; }
.site-footer__mark {
  display: block; margin-top: 1rem; margin-bottom: -.2em; user-select: none; pointer-events: none;
  font-family: var(--font-display); font-size: var(--fs-mega); font-weight: 700; line-height: .78; letter-spacing: -.03em; font-variation-settings: "opsz" 96, "wdth" 78;
  color: transparent; background: repeating-linear-gradient(180deg, rgba(111,209,165,.55) 0 1px, transparent 1px 7px); -webkit-background-clip: text; background-clip: text;
  -webkit-text-stroke: 1px rgba(111,209,165,.28);
  white-space: nowrap; text-align: center;
}

/* 10. Provisional hero + ledger backgrounds ------------------------------- */
.hero { position: relative; isolation: isolate; overflow: clip; padding-top: calc(var(--header-h) + clamp(3.5rem, 2rem + 6vw, 8rem)); padding-bottom: clamp(3.5rem, 2rem + 5vw, 7rem); }
.hero--full { min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; }
.hero__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero__inner { display: grid; gap: clamp(1.25rem, 1rem + 1vw, 2rem); max-width: 1100px; }
.hero__title { font-size: var(--fs-display); line-height: var(--lh-tight); letter-spacing: var(--tracking-display); font-weight: 700; font-variation-settings: "opsz" 96, "wdth" 92; max-width: 14ch; }
.hero__title--md { font-size: clamp(2.5rem, 1.5rem + 4.4vw, 5.5rem); max-width: 18ch; }
.hero__sub { font-size: var(--fs-lead); line-height: 1.5; color: var(--fg-2); max-width: 60ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; align-items: center; margin-top: .5rem; }
.hero__micro { font-size: var(--fs-sm); color: var(--fg-3); display: flex; align-items: center; gap: .6rem; }
.hero__micro::before { content: ""; width: 14px; height: 1px; background: currentColor; }
/* Ledger strip: a mono "register header" row with column rules */
.ledger-strip { display: grid; grid-template-columns: repeat(var(--cols, 4), minmax(0, 1fr)); border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule); margin-top: clamp(2.5rem, 1.5rem + 4vw, 5rem); }
.ledger-strip > div { padding: .9rem 1rem .9rem 0; display: grid; gap: .2rem; border-right: 1px solid var(--rule); padding-left: 1rem; }
.ledger-strip > div:first-child { padding-left: 0; }
.ledger-strip > div:last-child { border-right: 0; }
.ledger-strip dt { font-family: var(--font-mono); font-size: var(--fs-2xs); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-3); }
.ledger-strip dd { font-family: var(--font-mono); font-size: clamp(.95rem, .85rem + .4vw, 1.2rem); color: var(--fg); font-variant-numeric: tabular-nums; letter-spacing: 0; }
@media (max-width: 699.98px) { .ledger-strip { grid-template-columns: 1fr 1fr; } .ledger-strip > div:nth-child(2n) { border-right: 0; } .ledger-strip > div:nth-child(n+3) { border-top: 1px solid var(--rule); } .ledger-strip > div:nth-child(odd) { padding-left: 0; } }

/* Static ledger paper texture (light) with a red margin double-rule */
.bg-ledger {
  background-image:
    linear-gradient(90deg, transparent calc(var(--margin-x, calc(var(--gutter) * .5)) - 1px), var(--ledger-margin) calc(var(--margin-x, calc(var(--gutter) * .5)) - 1px) var(--margin-x, calc(var(--gutter) * .5)), transparent var(--margin-x, calc(var(--gutter) * .5)) calc(var(--margin-x, calc(var(--gutter) * .5)) + 3px), var(--ledger-margin) calc(var(--margin-x, calc(var(--gutter) * .5)) + 3px) calc(var(--margin-x, calc(var(--gutter) * .5)) + 4px), transparent calc(var(--margin-x, calc(var(--gutter) * .5)) + 4px)),
    repeating-linear-gradient(180deg, transparent 0 calc(var(--ledger-gap, 32px) - 1px), var(--ledger-line) calc(var(--ledger-gap, 32px) - 1px) var(--ledger-gap, 32px));
}
.bg-grid { background-image: linear-gradient(var(--ledger-line) 1px, transparent 1px), linear-gradient(90deg, var(--ledger-line) 1px, transparent 1px); background-size: var(--grid, 48px) var(--grid, 48px); }
.fade-mask-b { mask-image: linear-gradient(180deg, #000 55%, transparent); -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent); }
.fade-mask-r { mask-image: linear-gradient(90deg, transparent 0%, #000 45%); -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%); }

/* Ledger field container (WebGL canvas + intentional static fallback) */
.ledger-field { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; background: var(--lf-bg, var(--ink)); }
.ledger-field canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 900ms var(--ease-out); }
.ledger-field.is-live canvas { opacity: 1; }
.ledger-field__fallback { position: absolute; inset: 0; background: var(--lf-bg) url("../img/ledger-lines-dark.208dee629bf8.svg") 85% 50% / cover no-repeat; transition: opacity 900ms var(--ease-out); }
.ledger-field[data-theme="light"] .ledger-field__fallback { background-image: url("../img/ledger-lines-light.a6cdc0df54dc.svg"); }
.ledger-field.is-live .ledger-field__fallback { opacity: 0; }
.ledger-field__scrim { position: absolute; inset: 0; background: radial-gradient(120% 90% at 0% 100%, var(--lf-bg, var(--ink)) 12%, transparent 62%), linear-gradient(180deg, transparent 60%, var(--lf-bg, var(--ink)) 100%); }
.ledger-field[data-theme="light"] { --lf-bg: var(--paper); }
.ledger-field[data-theme="dark"] { --lf-bg: var(--ink); }