/* ==========================================================================
   hk.css — design system for hkborah.com
   Family DNA of thepico.in: dark engineering-blueprint, hairline frames,
   one vermilion accent, square corners, mono micro-labels, drawn exhibits.

   Contents
   -------
   01 Tokens            07 Exhibits           13 Client network map
   02 Base & reset      08 Stat grids         14 Testimonials
   03 Layout            09 9-Blocker matrix   15 Close panel
   04 Typography        10 Digital Twin chat  16 Footer
   05 Header & nav      11 Books              17 Motion & reveals
   06 Buttons           12 Book cards         18 SVG animation grammar
   ========================================================================== */


/* --------------------------------------------------------------------------
   01 Tokens — exact values inherited from thepico.in's compiled stylesheet
   -------------------------------------------------------------------------- */

:root {
    /* Surfaces: page black, one-step-elevated panel, hairline border */
    --bg:            oklch(14.5% 0 0);   /* #0a0a0a */
    --panel:         oklch(18.1% 0 0);   /* #121212 */
    --panel-muted:   oklch(22.5% 0 0);   /* #1b1b1d */
    --line:          oklch(29% 0 0);     /* #2a2a2d */

    /* Ink: white emphasis, warm-grey body ("titanium") */
    --ink:           oklch(100% 0 0);    /* #ffffff */
    --titanium:      oklch(78% 0 0);     /* #b7b7b9 */
    --titanium-dim:  oklch(60% 0 0);     /* #8f8f92 */

    /* The single accent: vermilion. Nothing else may be colourful. */
    --accent:        oklch(60.1% 0.201 21.5);  /* #dc483e */
    --accent-soft:   color-mix(in oklab, oklch(60.1% 0.201 21.5) 12%, transparent);
    --accent-line:   color-mix(in oklab, oklch(60.1% 0.201 21.5) 45%, transparent);

    /* Type */
    --font-sans:    'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono:    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
                    'Liberation Mono', 'Courier New', monospace;

    /* Rhythm */
    --container:    80rem;                          /* 1280px, as thepico.in */
    --gutter:       clamp(1.25rem, 4vw, 2.5rem);
    --section-pad:  clamp(4.5rem, 9vw, 6rem);
    --header-h:     5rem;

    /* Motion tokens (durations + easing named after thepico.in's set) */
    --m-fast:       .18s;
    --m-standard:   .32s;
    --m-deliberate: .48s;
    --m-draw:       .84s;
    --ease-precise: linear;
    --ease-settle:  cubic-bezier(.25, 1, .5, 1);
}


/* --------------------------------------------------------------------------
   02 Base & reset
   -------------------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    /* Sticky header offset for in-page anchors */
    scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    color: var(--titanium);
    font-family: var(--font-sans);
    font-size: .9375rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

/* Browser-default margins on figure/blockquote would offset our
   hairline-framed components — everything aligns to the grid instead */
figure, blockquote { margin: 0; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: var(--ink); }

/* One focus style for the whole site — hairline vermilion ring */
:focus-visible {
    outline: 1.5px solid var(--accent);
    outline-offset: 3px;
}

/* Native details markers removed — we draw our own plus/minus */
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }


/* --------------------------------------------------------------------------
   03 Layout
   -------------------------------------------------------------------------- */

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

/* Sections flow under each other, separated by full-width hairlines */
.section { padding-block: var(--section-pad); border-top: 1px solid var(--line); }
.section--flush { border-top: 0; }

main { flex: 1 0 auto; }

/* Skip link — hidden until keyboard-focused */
.skip-link {
    position: absolute;
    left: -999px;
    top: 0.75rem;
    z-index: 100;
    background: var(--panel);
    color: var(--ink);
    border: 1px solid var(--accent);
    padding: 0.75rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}
.skip-link:focus { left: 0.75rem; }

/* Hero: fully centred, like every other section head on the site */
.hero { text-align: center; }
.hero__meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--line);
    padding-bottom: 1rem;
    margin-bottom: 2.5rem;
}
.hero__meta > span + span::before {
    content: "·";
    margin-right: 1.5rem;
    color: var(--titanium-dim);
}
.hero .display-xl { max-width: 56rem; margin-inline: auto; }
.hero .lead { margin-inline: auto; }
.hero__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2.5rem;
}
.hero__creds { margin-top: 2.25rem; color: var(--titanium-dim); }

/* Standard section header: mono kicker + display headline + supporting line */
.section-head { max-width: 48rem; margin-block-end: clamp(2.5rem, 6vw, 3.5rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head .lead { margin-top: 1rem; }

/* Closing call-to-action of a section: one plain line + buttons, centred */
.section-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
    text-align: center;
}
.section-cta__note {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--titanium);
    max-width: 40rem;
}
.section-cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }


/* --------------------------------------------------------------------------
   04 Typography
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--ink);
    margin: 0;
    line-height: 1.05;
    letter-spacing: -.02em;
    text-wrap: balance;
}

.display-xl {
    font-size: clamp(2.1rem, 5.4vw, 4.25rem);
    font-weight: 700;
    line-height: .98;
    letter-spacing: -.028em;
}

.display-lg { font-size: clamp(1.75rem, 3.4vw, 2.75rem); font-weight: 700; }

.lead {
    font-family: var(--font-display);
    font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    font-weight: 500;
    color: var(--titanium);
    max-width: 46rem;
}

/* The signature micro-label: 10px, uppercase, wide-tracked mono */
.mono-label {
    font-family: var(--font-mono);
    font-size: .625rem;
    letter-spacing: .26em;
    text-transform: uppercase;
}

/* Red kicker that opens every section, next to its exhibit number */
.kicker {
    display: block;
    color: var(--accent);
    margin-bottom: 1rem;
}

.text-accent { color: var(--accent); }
.text-ink { color: var(--ink); }
.text-dim { color: var(--titanium-dim); }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

strong { color: var(--ink); font-weight: 600; }


/* --------------------------------------------------------------------------
   05 Header & nav
   -------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--bg) 95%, transparent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: var(--header-h);
}

/* Logo: downloaded brand lockup (white/gold, transparent) + role tag */
.brand { display: inline-flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.brand__logo { height: 3.25rem; width: auto; }
.brand__logo--footer { height: 2.75rem; }
.brand__tag { display: block; color: var(--titanium-dim); margin-top: .2rem; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav__link {
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--titanium);
    padding-block: .25rem;
    border-bottom: 2px solid transparent;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.nav__link:hover, .nav__link[aria-current="page"] {
    color: var(--ink);
    border-bottom-color: var(--accent);
}

/* Hamburger (mobile only) */
.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--line);
    color: var(--titanium);
    padding: .5rem;
    cursor: pointer;
}
.nav-toggle:hover { color: var(--ink); border-color: var(--titanium); }

@media (max-width: 55rem) {
    .nav-toggle { display: grid; place-items: center; }
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--line);
    }
    .nav[data-open="true"] { display: flex; }
    .nav__link { padding: 1rem var(--gutter); border-bottom: 0; }
    .nav .btn { margin: 1rem var(--gutter); }
    .site-header .btn { display: none; } /* CTA lives inside the open panel */
}


/* --------------------------------------------------------------------------
   06 Buttons — square, uppercase, one solid variant with the fill-wipe hover
   -------------------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    cursor: pointer;
    border: 1px solid transparent;
    transition: color var(--m-standard) linear, border-color var(--m-fast) linear;
}

/* Solid vermilion with the family's left-to-right fill wipe on hover.
   isolation keeps the wipe's negative z-index inside the button, so it
   paints above the button's own background but below its text — the
   label stays visible through the wipe. */
.btn--solid {
    position: relative;
    isolation: isolate;
    background: var(--accent);
    color: var(--ink);
}
.btn--solid::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: var(--ink);
    transform: scaleX(0);
    transform-origin: 0 50%;
    transition: transform var(--m-standard) linear;
}
.btn--solid:hover, .btn--solid:focus-visible { color: var(--accent); }
.btn--solid:hover::before, .btn--solid:focus-visible::before { transform: scaleX(1); }

/* Ghost: hairline frame, vermilion on hover */
.btn--ghost {
    background: transparent;
    color: var(--accent);
    border-color: var(--accent-line);
}
.btn--ghost:hover, .btn--ghost:focus-visible {
    color: var(--ink);
    border-color: var(--accent);
    background: var(--accent-soft);
}

.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* Compact variant for the header */
.btn--nav { padding: .7rem 1.25rem; font-size: .65rem; letter-spacing: .16em; }

/* Compact solid variant inside the chat form */
.chat__send { padding: .85rem 1.5rem; font-size: .65rem; }

/* Quiet in-text link with a drawn arrow */
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: var(--font-mono);
    font-size: .625rem;
    letter-spacing: .26em;
    text-transform: uppercase;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    padding-bottom: .35rem;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }
.link-arrow::after { content: "\2192"; /* → */ }


/* --------------------------------------------------------------------------
   07 Exhibits — the numbered figure frames that carry every drawing
   -------------------------------------------------------------------------- */

.exhibit {
    border: 1px solid var(--line);
    background: var(--panel);
}

/* Header bar: number in vermilion, title in titanium, optional Read toggle */
.exhibit__bar {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: .75rem;
    padding: .75rem 1.25rem;
    border-bottom: 1px solid var(--line);
}
.exhibit__bar-num { color: var(--accent); }
.exhibit__bar-meta { display: flex; align-items: baseline; gap: 1rem; }

.exhibit__read {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: none;
    border: 1px solid var(--line);
    color: var(--titanium);
    font-family: var(--font-mono);
    font-size: .55rem;
    letter-spacing: .26em;
    text-transform: uppercase;
    padding: .25rem .6rem;
    cursor: pointer;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.exhibit__read:hover { color: var(--ink); border-color: var(--titanium); }
.exhibit__read-icon { transition: transform var(--m-standard) var(--ease-settle); }
.exhibit__read[aria-expanded="true"] .exhibit__read-icon { transform: rotate(45deg); }

.exhibit__body { padding: clamp(1.25rem, 3vw, 1.75rem); }

/* Variant for full-bleed content (the 9-Blocker matrix brings its own padding) */
.exhibit__body--flush { padding: 0; }

/* Expandable "How to read this" panel — grid-rows collapse trick */
.exhibit__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--m-standard) var(--ease-settle); }
.exhibit__panel[data-open="true"] { grid-template-rows: 1fr; }
.exhibit__panel > div { min-height: 0; overflow: hidden; }
.exhibit__panel-inner {
    padding: 1.25rem 1.25rem 1.5rem;
    border-top: 1px solid var(--line);
    font-size: .8rem;
    line-height: 1.7;
    max-width: 60rem;
}

.exhibit__caption {
    padding: .75rem 1.25rem;
    border-top: 1px solid var(--line);
    font-size: .7rem;
    line-height: 1.6;
    color: var(--titanium);
}


/* --------------------------------------------------------------------------
   08 Stat grids — hairline grid made of 1px gaps over a border-coloured bed
   -------------------------------------------------------------------------- */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}
.stat { background: var(--panel); padding: 1rem 1.25rem; }
.stat dt { font-family: var(--font-mono); font-size: .625rem; letter-spacing: .26em; text-transform: uppercase; color: var(--titanium-dim); }
.stat dd { margin: .5rem 0 0; }
.stat__value { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--accent); letter-spacing: -.01em; }
.stat__note { display: block; margin-top: .35rem; font-size: .72rem; line-height: 1.55; }


/* --------------------------------------------------------------------------
   09 The 9-Blocker matrix — "Pick your row. Pick your column."
   -------------------------------------------------------------------------- */

.matrix { display: grid; grid-template-columns: 1fr; }

.matrix__colheads,
.matrix__rowgrid {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr 1fr;
    gap: 0 2rem;
}

.matrix__colheads {
    padding: 0 1.5rem .75rem;
    align-items: end;
}
.matrix__colhead {
    font-family: var(--font-mono);
    font-size: .625rem;
    letter-spacing: .26em;
    text-transform: uppercase;
    color: var(--titanium-dim);
    border-bottom: 1px solid var(--line);
    padding-bottom: .75rem;
}

.matrix__row { padding: 0 1.5rem; }
/* Desktop: the row is a flat grid — the accordion toggle is hidden */
.matrix__row > summary { display: none; }
.matrix__rowhead { border-bottom: 1px solid var(--line); padding-block: 1.5rem; }
.matrix__rowhead h3 {
    font-size: 1.3rem;
    line-height: 1.15;
    border-left: 2px solid var(--accent);
    padding-left: 1rem;
}
.matrix__rowhead .mono-label { color: var(--titanium-dim); margin-bottom: .5rem; display: block; }

.matrix__cell {
    border-bottom: 1px solid var(--line);
    padding: 1.5rem 0 1.75rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    transition: background var(--m-fast) linear;
}
.matrix__cell h4 { font-size: 1.05rem; letter-spacing: -.01em; }
.matrix__cell p { font-size: .8rem; line-height: 1.6; flex: 1 0 auto; margin: 0; }
.matrix__cell .link-arrow { align-self: flex-start; margin-top: .75rem; }
.matrix__cell:hover { background: color-mix(in srgb, var(--panel) 65%, transparent); }
.matrix__cell:hover h4 { color: var(--accent); }

/* Mobile: rows collapse into accordions */
@media (max-width: 63.9rem) {
    .matrix__colheads { display: none; }
    .matrix__row {
        display: block;
        padding: 0;
        border: 1px solid var(--line);
        margin-bottom: .75rem;
        background: var(--panel);
    }
    .matrix__rowgrid { display: block; }
    .matrix__row > summary {
        cursor: pointer;
        padding: 1.25rem 1.25rem;
        font-family: var(--font-display);
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--ink);
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 1rem;
    }
    .matrix__row[open] > summary { border-bottom: 1px solid var(--line); }
    .matrix__row .matrix__rowhead { display: none; }
    .matrix__row .matrix__cell {
        border-bottom: 1px solid var(--line);
        padding: 1.25rem;
        margin: 0;
    }
    .matrix__row .matrix__cell:last-child { border-bottom: 0; }
    .matrix__row .matrix__celltag {
        display: block;
        color: var(--accent);
        font-family: var(--font-mono);
        font-size: .625rem;
        letter-spacing: .26em;
        text-transform: uppercase;
        margin-bottom: .5rem;
    }
    /* Desktop forces accordions open via JS; mobile stays user-controlled */
}
.matrix__celltag { display: none; }

/* Plus/minus marker on mobile accordion rows */
.matrix__row > summary::after { content: "+"; color: var(--accent); font-weight: 400; }
.matrix__row[open] > summary::after { content: "\2212"; /* − */ }


/* --------------------------------------------------------------------------
   10 Digital Twin chat — square, hairline, honest
   -------------------------------------------------------------------------- */

/* The chat spans the same width as the exhibits in its section,
   with breathing room below the exhibit frame above it */
.chat-wrap { width: 100%; margin-top: 2.5rem; }

.chat {
    display: flex;
    flex-direction: column;
    height: 37.5rem;
    border: 1px solid var(--line);
    background: var(--panel);
}
.chat__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .75rem 1.25rem;
    border-bottom: 1px solid var(--line);
}
.chat__live { display: inline-flex; align-items: center; gap: .5rem; color: var(--titanium); }
.chat__dot {
    width: .4rem; height: .4rem;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: .28; } 50% { opacity: 1; } }

.chat__log {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
}

.chat__msg { display: flex; gap: 1rem; max-width: 46rem; }
.chat__msg--user { flex-direction: row-reverse; align-self: flex-end; }

.avatar {
    flex: 0 0 auto;
    width: 2rem; height: 2rem;
    display: grid; place-items: center;
    font-family: var(--font-mono);
    font-size: .55rem;
    letter-spacing: .08em;
}
.avatar--hk { background: var(--accent); color: var(--ink); }
.avatar--you { border: 1px solid var(--line); color: var(--titanium-dim); background: var(--bg); }

.chat__bubble {
    padding: .9rem 1.1rem;
    font-size: .85rem;
    line-height: 1.65;
    white-space: pre-wrap;
    overflow-wrap: anywhere;   /* long URLs must never stretch the layout */
}
.chat__msg--assistant .chat__bubble { background: var(--bg); border: 1px solid var(--line); color: var(--titanium); white-space: normal; }
.chat__msg--user .chat__bubble { background: var(--accent-soft); border-left: 2px solid var(--accent); color: var(--ink); }

/* Markdown rendered inside twin replies */
.chat__bubble .md p { margin: 0 0 .75em; }
.chat__bubble .md ul, .chat__bubble .md ol { margin: 0 0 .75em; padding-left: 1.35em; }
.chat__bubble .md li { margin-bottom: .3em; }
.chat__bubble .md strong { color: var(--ink); }
.chat__bubble .md h1, .chat__bubble .md h2, .chat__bubble .md h3 {
    font-size: .95rem; margin: 1em 0 .4em; letter-spacing: 0;
}
.chat__bubble .md code {
    font-family: var(--font-mono); font-size: .78rem;
    background: var(--panel-muted); padding: .1em .35em;
}
.chat__bubble .md pre {
    background: var(--panel-muted); padding: .75rem 1rem; overflow-x: auto; margin: 0 0 .75em;
}
.chat__bubble .md pre code { background: none; padding: 0; }

/* Typing indicator */
.chat__typing { color: var(--titanium-dim); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; }
.chat__typing::after { content: "\2026"; animation: pulse-dot 1.2s ease-in-out infinite; }

/* Quick prompts — mono chips pinned to the bottom of the log */
.chat__chips {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    padding: 0 1.5rem 1.25rem;
    border-top: 1px dashed transparent;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--titanium);
    font-family: var(--font-mono);
    font-size: .62rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    padding: .55rem .9rem;
    cursor: pointer;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.chip:hover { color: var(--accent); border-color: var(--accent-line); }
.chip svg { color: var(--accent); }

/* Input row */
.chat__foot { border-top: 1px solid var(--line); background: var(--panel); padding: 1rem; }
.chat__form { display: flex; gap: .75rem; }
.chat__input {
    flex: 1 1 auto;
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: .85rem;
    padding: .85rem 1.1rem;
    transition: border-color var(--m-fast) linear;
}
.chat__input::placeholder { color: var(--titanium-dim); }
.chat__input:focus { outline: none; border-color: var(--accent); }

.chat__icon-btn {
    flex: 0 0 auto;
    display: grid; place-items: center;
    width: 3rem;
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--titanium-dim);
    cursor: pointer;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.chat__icon-btn:hover { color: var(--accent); border-color: var(--accent-line); }

.chat__status { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .18em; text-transform: uppercase; color: var(--titanium-dim); margin-top: .6rem; min-height: 1em; }
.chat__privacy { margin-top: 1.25rem; font-size: .72rem; line-height: 1.6; color: var(--titanium-dim); display: flex; gap: .6rem; align-items: baseline; }
.chat__privacy .mono-label { color: var(--accent); flex-shrink: 0; }

@media (max-width: 40rem) {
    .chat__icon-btn { display: none; }
    .chat__msg { gap: .6rem; }
}


/* --------------------------------------------------------------------------
   11 Knowledge strip — cover thumbnails + summary table (links to /knowledge)
   -------------------------------------------------------------------------- */

.book-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
    max-width: 52rem;
    margin: 0 auto 2.5rem;
}
@media (max-width: 47.9rem) { .book-strip { grid-template-columns: repeat(3, 1fr); gap: 1rem; } }

.book-strip__item {
    display: flex;
    flex-direction: column;
    gap: .9rem;
    border: 1px solid var(--line);
    background: var(--panel);
    padding: 1rem;
    transition: border-color var(--m-fast) linear;
}
.book-strip__item:hover { border-color: var(--accent-line); }
.book-strip__item img { width: 100%; height: auto; }
.book-strip__name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: .85rem;
    color: var(--ink);
    text-align: center;
    letter-spacing: .02em;
}

/* Summary table: hairline rows, mono header, thumb-friendly rows */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); background: var(--panel); }
.book-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 40rem;
}
.book-table th {
    font-family: var(--font-mono);
    font-size: .625rem;
    font-weight: 600;
    letter-spacing: .26em;
    text-transform: uppercase;
    text-align: left;
    color: var(--titanium-dim);
    padding: .9rem 1.25rem;
    border-bottom: 1px solid var(--line);
}
.book-table td {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid var(--line);
    font-size: .85rem;
    color: var(--titanium);
    vertical-align: top;
}
.book-table tr:last-child td { border-bottom: 0; }
.book-table tbody tr { transition: background var(--m-fast) linear; }
.book-table tbody tr:hover { background: color-mix(in srgb, var(--panel-muted) 60%, transparent); }
.book-table__title { font-family: var(--font-display); font-weight: 600; color: var(--ink); white-space: nowrap; }

/* Screen-reader-only helper */
.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    margin: -1px; padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   11b Knowledge page — cover + detail rows, soft sell only
   -------------------------------------------------------------------------- */

.book-detail {
    display: grid;
    grid-template-columns: minmax(11rem, 15rem) 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}
@media (max-width: 47.9rem) {
    .book-detail { grid-template-columns: 1fr; }
    .book-detail__cover { max-width: 12rem; }
}

.book-detail__cover {
    border: 1px solid var(--line);
    background: var(--panel);
    padding: .75rem;
}
.book-detail__cover img { width: 100%; height: auto; }

.book-detail__body .display-lg { margin-block: .35rem .25rem; }
.book-detail__subtitle {
    font-family: var(--font-display);
    font-weight: 500;
    color: var(--titanium);
    margin-bottom: 1.5rem;
}
.book-detail__body p { max-width: 44rem; }

.book-detail__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 1.5rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}
.book-detail__links-label { color: var(--titanium-dim); }

/* Store links: the site's standard red button, with the store name always
   visible. No hover-only reveal - touch devices have no hover state, and a
   shopper should see where a link goes before tapping it. */
.store-links { display: flex; flex-wrap: wrap; gap: .6rem; }
.store-links .btn { min-width: 8.5rem; padding-inline: 1.25rem; }


/* --------------------------------------------------------------------------
   11c Shared page blocks — centred prose, FAQs, domain cards, inline notes
   Used by the advice, privacy, terms and blog pages.
   -------------------------------------------------------------------------- */

/* Centred prose column: for sections that are a short argument, not a chart */
.prose-center {
    max-width: 46rem;
    margin-inline: auto;
    text-align: center;
    font-size: clamp(1rem, 1.6vw, 1.1rem);
    line-height: 1.75;
    color: var(--titanium);
}
.prose-center p { margin-bottom: 1.15em; }
.prose-center strong { color: var(--ink); }

/* Small centred footnote under a section */
.section-note {
    max-width: 44rem;
    margin: 2.5rem auto 0;
    text-align: center;
    font-size: .8rem;
    line-height: 1.7;
    color: var(--titanium-dim);
}

/* Inline link: accent underline, stays ink-coloured so it reads in prose */
.link-inline {
    color: var(--ink);
    border-bottom: 1px solid var(--accent-line);
    transition: border-color var(--m-fast) linear, color var(--m-fast) linear;
}
.link-inline:hover { color: var(--accent); border-color: var(--accent); }

/* FAQ accordion: hairline rows, mono plus/minus, vermilion when open */
.faq {
    max-width: 52rem;
    margin-inline: auto;
    border-top: 1px solid var(--line);
}
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item > summary {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.5rem;
    cursor: pointer;
    padding: 1.4rem 0;
    font-family: var(--font-display);
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    font-weight: 600;
    color: var(--ink);
    transition: color var(--m-fast) linear;
}
.faq__item > summary::after {
    content: "+";
    flex-shrink: 0;
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 1.05rem;
    color: var(--accent);
}
.faq__item[open] > summary::after { content: "\2212"; /* minus */ }
.faq__item > summary:hover { color: var(--accent); }
.faq__answer { padding: 0 0 1.5rem; max-width: 44rem; }
.faq__answer p { font-size: .9rem; line-height: 1.75; color: var(--titanium); }

/* Domain cards: 2x2 hairline grid (the "Ask It About" section) */
.domain-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}
@media (max-width: 47.9rem) { .domain-grid { grid-template-columns: 1fr; } }

.domain-card {
    background: var(--panel);
    padding: clamp(1.5rem, 3vw, 2.25rem);
    display: flex;
    flex-direction: column;
    gap: .75rem;
    transition: background var(--m-fast) linear;
}
.domain-card:hover { background: color-mix(in srgb, var(--panel-muted) 55%, transparent); }
.domain-card__num { color: var(--accent); }
.domain-card h3 { font-size: 1.15rem; }
.domain-card p { font-size: .85rem; line-height: 1.7; margin: 0; }

/* Long-form legal / policy prose: centred column, left-aligned text */
.legal {
    max-width: 46rem;
    margin-inline: auto;
    font-size: .95rem;
    line-height: 1.8;
    color: var(--titanium);
}
.legal h2 {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    margin: 2.75rem 0 .9rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
    color: var(--ink);
}
.legal h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.legal p { margin-bottom: 1.1em; }
.legal ul { margin: 0 0 1.3em; padding-left: 1.2em; }
.legal li { margin-bottom: .5em; }
.legal strong { color: var(--ink); }


/* --------------------------------------------------------------------------
   11d Journal (blog) — listing cards and the single-post reading column
   -------------------------------------------------------------------------- */

.blog-filters { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; margin-bottom: 2.5rem; }
.blog-filters .chip[aria-pressed="true"] { color: var(--accent); border-color: var(--accent-line); }

.blog-status {
    text-align: center;
    font-family: var(--font-mono);
    font-size: .7rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--titanium-dim);
    margin-bottom: 2rem;
}
.blog-status:empty { display: none; }

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}
@media (max-width: 63.9rem) { .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 40rem)   { .blog-grid { grid-template-columns: 1fr; } }
.blog-grid:empty { display: none; }

.post-card { background: var(--panel); }
.post-card__link { display: flex; flex-direction: column; height: 100%; }
.post-card__link:hover .post-card__title { color: var(--accent); }

.post-card__media { display: block; aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--line); }
.post-card__media img { width: 100%; height: 100%; object-fit: cover; }

.post-card__body { display: flex; flex-direction: column; gap: .7rem; padding: 1.5rem; flex: 1 0 auto; }
.post-card__cat { color: var(--accent); }
.post-card__title { font-size: 1.15rem; line-height: 1.25; transition: color var(--m-fast) linear; }
.post-card__excerpt { font-size: .85rem; line-height: 1.65; color: var(--titanium); flex: 1 0 auto; margin: 0; }
.post-card__date { color: var(--titanium-dim); }

/* Pager */
.pager { display: flex; align-items: center; justify-content: center; gap: 1.5rem; margin-top: 2.5rem; }
.pager__btn {
    background: none;
    border: 1px solid var(--line);
    color: var(--titanium);
    font-family: var(--font-mono);
    font-size: .65rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    padding: .7rem 1.2rem;
    cursor: pointer;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.pager__btn:hover:not([disabled]) { color: var(--accent); border-color: var(--accent-line); }
.pager__btn[disabled] { opacity: .4; cursor: not-allowed; }
.pager__count { color: var(--titanium-dim); }

/* Single post */
.post-head { max-width: 46rem; margin: 0 auto 2.5rem; text-align: center; }
.post-head .display-lg { margin-block: .5rem 1rem; }
.post-head__date { color: var(--titanium-dim); }

.post-figure {
    max-width: 60rem;
    margin: 0 auto 3rem;
    border: 1px solid var(--line);
    background: var(--panel);
}
.post-figure img { width: 100%; height: auto; }

.post-body {
    max-width: 46rem;
    margin-inline: auto;
    font-size: 1rem;
    line-height: 1.85;
    color: var(--titanium);
}
.post-body h1, .post-body h2, .post-body h3 { margin: 2rem 0 .8rem; color: var(--ink); }
.post-body h1 { font-size: 1.7rem; }
.post-body h2 { font-size: 1.4rem; }
.post-body h3 { font-size: 1.15rem; }
.post-body p { margin-bottom: 1.3em; }
.post-body strong { color: var(--ink); }
.post-body a { color: var(--ink); border-bottom: 1px solid var(--accent-line); }
.post-body a:hover { color: var(--accent); }
.post-body ul, .post-body ol { margin: 0 0 1.3em; padding-left: 1.4em; }
.post-body li { margin-bottom: .5em; }
.post-body blockquote {
    margin: 1.5rem 0;
    padding-left: 1.25rem;
    border-left: 2px solid var(--accent);
    color: var(--ink);
    font-family: var(--font-display);
    font-size: 1.05rem;
}
.post-body img { width: 100%; height: auto; border: 1px solid var(--line); margin: 1.5rem 0; }
.post-body code {
    font-family: var(--font-mono);
    font-size: .85em;
    background: var(--panel-muted);
    padding: .1em .35em;
}
.post-body pre { background: var(--panel-muted); padding: 1rem; overflow-x: auto; margin-bottom: 1.3em; }
.post-body pre code { background: none; padding: 0; }
.post-body hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

.post-foot { max-width: 46rem; margin: 3rem auto 0; padding-top: 1.5rem; border-top: 1px solid var(--line); }


/* --------------------------------------------------------------------------
   11e Journal editor (admin) — login panel and editing surface
   -------------------------------------------------------------------------- */

/* Login */
.login-panel {
    max-width: 30rem;
    margin-inline: auto;
    text-align: center;
}
.login-panel .display-lg { margin-block: .5rem 1rem; }
.login-methods { margin-top: 2.5rem; display: flex; flex-direction: column; gap: 1.25rem; }
.login-methods #google-button { display: flex; justify-content: center; min-height: 2.5rem; }
/* Why the Google button is absent, when it is */
.login-note {
    font-size: .8rem;
    line-height: 1.6;
    color: var(--titanium-dim);
    margin: 0;
}

.login-form { display: flex; flex-direction: column; gap: .5rem; text-align: left; }
.login-form .mono-label { color: var(--titanium-dim); margin-top: .5rem; }
.login-form .btn { margin-top: 1.25rem; align-self: flex-start; }

/* Editor chrome */
.editor-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
    margin-bottom: 1.5rem;
}
.editor-bar__actions { display: flex; flex-wrap: wrap; gap: .75rem; }

.editor-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 20rem;
    gap: 2.5rem;
    align-items: start;
}
@media (max-width: 63.9rem) { .editor-grid { grid-template-columns: 1fr; } }

.editor-form { display: flex; flex-direction: column; gap: .5rem; }
.editor-form .mono-label { color: var(--titanium-dim); margin-top: 1.25rem; }
.editor-form .chat__input { width: 100%; }
.editor-form input[type="file"] { padding: .7rem; cursor: pointer; }

.editor-preview { margin-top: .75rem; border: 1px solid var(--line); background: var(--panel); padding: .75rem; }
.editor-preview img { width: 100%; height: auto; margin-bottom: .75rem; }
.editor-preview .link-arrow { background: none; cursor: pointer; }

.editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-bottom: 0;
}
.editor-toolbar button {
    background: var(--panel);
    border: 0;
    color: var(--titanium);
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .06em;
    padding: .6rem .85rem;
    cursor: pointer;
    transition: color var(--m-fast) linear, background var(--m-fast) linear;
}
.editor-toolbar button:hover { color: var(--accent); background: var(--panel-muted); }

/* Group divider inside the toolbar */
.editor-toolbar__sep {
    width: 1px;
    background: var(--line);
    margin-block: 0;
}

.editor-surface {
    min-height: 26rem;
    border: 1px solid var(--line);
    background: var(--panel);
    padding: 1.5rem;
    color: var(--titanium);
    line-height: 1.8;
    outline: none;
}
.editor-surface:focus { border-color: var(--accent-line); }
.editor-surface:empty::before {
    content: "Write the entry here. Paste text and it arrives clean.";
    color: var(--titanium-dim);
}
.editor-surface h2 { font-size: 1.35rem; margin: 1.25rem 0 .6rem; }
.editor-surface h3 { font-size: 1.1rem; margin: 1rem 0 .5rem; }
.editor-surface p { margin-bottom: 1em; }
.editor-surface blockquote {
    margin: 1rem 0;
    padding-left: 1rem;
    border-left: 2px solid var(--accent);
    color: var(--ink);
}
.editor-surface a { color: var(--accent); border-bottom: 1px solid var(--accent-line); }

.editor-hint { font-size: .78rem; color: var(--titanium-dim); }

/* Published entries list */
.editor-list { border: 1px solid var(--line); background: var(--panel); }
.editor-list__head {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--line);
    color: var(--titanium-dim);
}
.editor-list__items { max-height: 34rem; overflow-y: auto; }
.editor-list__row {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: .5rem;
    border-bottom: 1px solid var(--line);
}
.editor-list__row:last-child { border-bottom: 0; }
.editor-list__title {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: .35rem;
    align-items: flex-start;
    text-align: left;
    background: none;
    border: 0;
    color: var(--titanium);
    font-family: var(--font-display);
    font-size: .9rem;
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: color var(--m-fast) linear;
}
.editor-list__title:hover { color: var(--accent); }
.editor-list__title .mono-label { color: var(--titanium-dim); }
.editor-list__delete {
    background: none;
    border: 0;
    border-left: 1px solid var(--line);
    color: var(--titanium-dim);
    font-family: var(--font-mono);
    font-size: .6rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    padding: 0 1rem;
    cursor: pointer;
    transition: color var(--m-fast) linear;
}
.editor-list__delete:hover { color: var(--accent); }
.editor-list .editor-hint { padding: 1.25rem; }

/* Error state for any status line */
.blog-status.is-error { color: var(--accent); }

/* Transcript browser controls: filters, page size, bulk actions */
.tr-tools {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 2rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--line);
    background: var(--panel);
    margin-bottom: 1.25rem;
}
.tr-tools__group { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.tr-tools__group .mono-label { color: var(--titanium-dim); }
.tr-tools__date {
    width: auto;
    padding: .5rem .7rem;
    font-size: .8rem;
    color-scheme: dark;
}

.tr-btn {
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--titanium);
    font-family: var(--font-mono);
    font-size: .62rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    padding: .5rem .8rem;
    cursor: pointer;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.tr-btn:hover:not([disabled]) { color: var(--accent); border-color: var(--accent-line); }
.tr-btn[disabled] { opacity: .45; cursor: not-allowed; }
.tr-btn[aria-pressed="true"] { color: var(--ink); border-color: var(--accent); background: var(--accent-soft); }
.tr-btn--danger:hover:not([disabled]) { color: var(--accent); border-color: var(--accent); }

.transcript-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .6rem 0;
    border-bottom: 1px solid var(--line);
}
.transcript-head__all { display: inline-flex; align-items: center; gap: .6rem; cursor: pointer; color: var(--titanium-dim); }
.transcript-head__all input { accent-color: var(--accent); cursor: pointer; }
#tr-selected-count { color: var(--accent); }

/* The row now leads with a checkbox */
.transcript > summary { grid-template-columns: auto 13rem minmax(0, 1fr) auto; }
@media (max-width: 47.9rem) {
    .transcript > summary { grid-template-columns: auto 1fr; }
    .transcript > summary .transcript__count { grid-column: 2; }
}
.transcript > summary > input { accent-color: var(--accent); cursor: pointer; margin-top: .2rem; }
.transcript__body .tr-btn { align-self: flex-start; }

/* --------------------------------------------------------------------------
   11k Saved conversations (admin) — one collapsible row per transcript
   -------------------------------------------------------------------------- */

.transcript-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.transcript-list:empty { border-top: 0; }

.transcript { border-bottom: 1px solid var(--line); }
.transcript > summary {
    display: grid;
    grid-template-columns: 13rem minmax(0, 1fr) auto;
    gap: 1.25rem;
    align-items: baseline;
    cursor: pointer;
    padding: 1.1rem 0;
    transition: color var(--m-fast) linear;
}
@media (max-width: 47.9rem) {
    .transcript > summary { grid-template-columns: 1fr; gap: .4rem; }
}
.transcript > summary:hover .transcript__preview { color: var(--accent); }
.transcript__date { color: var(--titanium-dim); }
.transcript__count { color: var(--titanium-dim); text-align: right; }
@media (max-width: 47.9rem) { .transcript__count { text-align: left; } }
.transcript__preview {
    font-size: .9rem;
    line-height: 1.6;
    color: var(--titanium);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
@media (max-width: 47.9rem) { .transcript__preview { white-space: normal; } }

.transcript__body {
    padding: 0 0 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.transcript__msg { display: flex; flex-direction: column; gap: .3rem; max-width: 48rem; }
.transcript__msg .mono-label { color: var(--titanium-dim); }
.transcript__msg p {
    font-size: .88rem;
    line-height: 1.7;
    margin: 0;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.transcript__msg--user { border-left: 2px solid var(--accent); padding-left: 1rem; }
.transcript__msg--user p { color: var(--ink); }
.transcript__delete { align-self: flex-start; border-left: 0; padding: .5rem 0; }



/* --------------------------------------------------------------------------
   11f Execution page — tabs, self-check, burden cards
   -------------------------------------------------------------------------- */

/* Tabs: mono-weight labels, vermilion underline on the active one */
.tabs { margin-top: clamp(2rem, 4vw, 3rem); }
.tabs__list {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    margin-bottom: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 47.9rem) {
    .tabs__list { grid-auto-flow: row; grid-auto-columns: auto; }
}

.tab {
    background: var(--panel);
    border: 0;
    border-bottom: 2px solid transparent;
    color: var(--titanium);
    font-family: var(--font-display);
    font-size: clamp(.85rem, 1.4vw, 1rem);
    font-weight: 600;
    padding: 1.15rem 1rem;
    cursor: pointer;
    transition: color var(--m-fast) linear, background var(--m-fast) linear, border-color var(--m-fast) linear;
}
.tab:hover { color: var(--ink); background: color-mix(in srgb, var(--panel-muted) 55%, transparent); }
.tab[aria-selected="true"] { color: var(--ink); background: var(--bg); border-bottom-color: var(--accent); }

.tab-panel[hidden] { display: none; }
.tab-panel:focus-visible { outline: 1.5px solid var(--accent); outline-offset: 6px; }

.tab-panel__claim {
    font-size: clamp(1.15rem, 2.4vw, 1.7rem);
    font-weight: 700;
    line-height: 1.25;
    max-width: 46rem;
    margin: 0 auto 1.25rem;
    text-align: center;
}
.tab-panel__lead {
    max-width: 46rem;
    margin: 0 auto clamp(2rem, 4vw, 3rem);
    text-align: center;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--titanium);
}


/* Self-check: a plain checkbox list with a live tally */
.check {
    width: 100%;
    border: 1px solid var(--line);
    background: var(--panel);
}
.check__prompt {
    display: block;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--line);
    color: var(--titanium-dim);
}
.check__list { list-style: none; margin: 0; padding: 0; }
.check__list li { border-bottom: 1px solid var(--line); }
.check__list li:last-child { border-bottom: 0; }

.check__item {
    display: flex;
    align-items: flex-start;
    gap: .9rem;
    padding: 1.05rem 1.5rem;
    cursor: pointer;
    font-size: .95rem;
    line-height: 1.6;
    color: var(--titanium);
    transition: background var(--m-fast) linear, color var(--m-fast) linear;
}
.check__item:hover { background: color-mix(in srgb, var(--panel-muted) 55%, transparent); color: var(--ink); }
.check__item input {
    flex: 0 0 auto;
    width: 1.05rem;
    height: 1.05rem;
    margin-top: .22rem;
    accent-color: var(--accent);
    cursor: pointer;
}
/* A ticked row reads as confirmed, not as a warning */
.check__item:has(input:checked) { color: var(--ink); background: var(--accent-soft); }

.check__verdict {
    padding: 1.5rem;
    border-top: 1px solid var(--line);
    text-align: center;
}
.check__count {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 .35rem;
}
.check__count span { color: var(--accent); }
.check__message { font-size: .88rem; color: var(--titanium-dim); margin: 0; }
.check__verdict .section-cta__actions { margin-top: 1.5rem; }

/* The six burdens */
.burden-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    margin-top: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 63.9rem) { .burden-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 40rem)   { .burden-grid { grid-template-columns: 1fr; } }

.burden {
    background: var(--panel);
    padding: clamp(1.35rem, 2.5vw, 1.85rem);
    display: flex;
    flex-direction: column;
    gap: .7rem;
    transition: background var(--m-fast) linear;
}
.burden:hover { background: color-mix(in srgb, var(--panel-muted) 55%, transparent); }
.burden__num { color: var(--accent); }
.burden__q {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.45;
    color: var(--ink);
    margin: 0;
}
.burden__fix { font-size: .85rem; line-height: 1.65; margin: 0; }
.burden__fix strong { color: var(--ink); }

/* Extra lines used inside the four execution cards */
.domain-card__tag {
    font-family: var(--font-mono);
    font-size: .6rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0;
}
.domain-card__where {
    font-size: .75rem;
    color: var(--titanium-dim);
    border-top: 1px solid var(--line);
    padding-top: .9rem;
    margin: auto 0 0;
}
.domain-card__where strong { color: var(--ink); font-weight: 600; }
.domain-card .link-arrow { align-self: flex-start; margin-top: .75rem; }

/* Breathing room around the stacked visuals so nothing crowds */
.check + .exhibit { margin-top: clamp(2.5rem, 5vw, 4rem); }
.exhibit + .domain-grid, .exhibit + .burden-grid { margin-top: clamp(2.5rem, 5vw, 3.5rem); }


/* --------------------------------------------------------------------------
   11g Emergence flow — three stages, each growing out of the last
   -------------------------------------------------------------------------- */

.flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: stretch;
    gap: 1rem;
    margin-top: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 63.9rem) {
    .flow { grid-template-columns: 1fr; gap: .75rem; }
}

.flow__step {
    display: flex;
    flex-direction: column;
    gap: .6rem;
    background: var(--panel);
    border: 1px solid var(--line);
    border-top: 2px solid var(--accent);
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    transition: background var(--m-fast) linear;
}
.flow__step:hover { background: color-mix(in srgb, var(--panel-muted) 55%, transparent); }

.flow__num {
    font-family: var(--font-mono);
    font-size: .625rem;
    letter-spacing: .26em;
    text-transform: uppercase;
    color: var(--accent);
}
.flow__step h3 { font-size: 1.15rem; letter-spacing: -.01em; }
.flow__step p { font-size: .85rem; line-height: 1.7; margin: 0; color: var(--titanium); }

/* Connector between stages: a dashed line with an arrowhead */
.flow__arrow {
    position: relative;
    display: grid;
    place-items: center;
    align-self: center;
    width: 2.5rem;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 1rem;
    line-height: 1;
}
.flow__arrow::before {
    content: "";
    position: absolute;
    left: -0.9rem;
    right: -0.9rem;
    top: 50%;
    border-top: 1px dashed var(--accent-line);
}
.flow__arrow span { position: relative; background: var(--bg); padding: 0 .3rem; }

@media (max-width: 63.9rem) {
    .flow__arrow { width: auto; height: 2.25rem; }
    .flow__arrow::before {
        left: 50%; right: auto;
        top: -0.5rem; bottom: -0.5rem;
        border-top: 0;
        border-left: 1px dashed var(--accent-line);
    }
    .flow__arrow span { transform: rotate(90deg); }
}


/* --------------------------------------------------------------------------
   11h Mind pulse (Exhibit 05) — a breathing centre with radial traffic
   Dots are generated by JS; these rules only describe how they move.
   -------------------------------------------------------------------------- */

/* The brain glyph inside the centre breathes */
.mind-core {
    transform-box: fill-box;
    transform-origin: center;
    animation: mind-breathe 2.6s ease-in-out infinite;
}
@keyframes mind-breathe {
    0%, 100% { transform: scale(1); }
    45%      { transform: scale(1.12); }
}

/* A lighter hexagon swelling outward from the centre on each pulse */
.mind-ring {
    transform-box: fill-box;
    transform-origin: center;
    opacity: 0;
}
[data-visible="true"] .mind-ring.is-firing {
    animation: mind-ring 2.6s ease-out forwards;
}
@keyframes mind-ring {
    0%   { transform: scale(.22); opacity: .55; }
    100% { transform: scale(1.25); opacity: 0; }
}

/* Travelling red dots: out along a spoke, or back in along one */
.mind-dot {
    offset-rotate: 0deg;
    animation: mind-travel var(--travel, 2.4s) linear forwards;
}
@keyframes mind-travel {
    0%   { offset-distance: 0%; opacity: 0; }
    12%  { opacity: .9; }
    82%  { opacity: .9; }
    100% { offset-distance: 100%; opacity: 0; }
}

/* Both effects respect the site-wide motion switch */
html[data-motion="reduced"] .mind-core,
html:not([data-motion]) .mind-core { animation: none; }
html[data-motion="reduced"] .mind-ring,
html:not([data-motion]) .mind-ring,
html[data-motion="reduced"] .mind-dot,
html:not([data-motion]) .mind-dot { display: none; }


/* --------------------------------------------------------------------------
   11i About page — portrait, icon links, three-across grid, contact form
   -------------------------------------------------------------------------- */

/* Portrait beside the introduction */
.about-intro {
    display: grid;
    grid-template-columns: minmax(13rem, 20rem) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}
@media (max-width: 55rem) {
    .about-intro { grid-template-columns: 1fr; }
    .portrait { max-width: 20rem; }
}

.portrait {
    border: 1px solid var(--line);
    background: var(--panel);
    padding: .75rem;
}
.portrait img { width: 100%; height: auto; display: block; }
.portrait figcaption {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    padding: .9rem .25rem .25rem;
}
.portrait__name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--ink);
}
.portrait__role { color: var(--titanium-dim); }

.about-intro__text .display-lg { margin-block: .5rem 1.25rem; }
.about-intro__text p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--titanium);
    max-width: 42rem;
}
.about-intro__text strong { color: var(--ink); }

/* Icon links (LinkedIn, email) */
.about-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.75rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}
.icon-link {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--titanium);
    transition: color var(--m-fast) linear;
}
.icon-link svg { color: var(--accent); flex-shrink: 0; }
.icon-link:hover { color: var(--accent); }

/* Three equal blocks, no empty cell */
.domain-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 63.9rem) { .domain-grid--3 { grid-template-columns: 1fr; } }

/* Contact form */
.contact-form {
    max-width: 52rem;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    border: 1px solid var(--line);
    background: var(--panel);
    padding: clamp(1.5rem, 3vw, 2.5rem);
}
.contact-form__row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}
@media (max-width: 47.9rem) { .contact-form__row { grid-template-columns: 1fr; } }

.contact-form__field { display: flex; flex-direction: column; gap: .5rem; }
.contact-form__field label { color: var(--titanium-dim); line-height: 1.6; }
.contact-form__hint { color: color-mix(in srgb, var(--titanium-dim) 70%, transparent); }
.contact-form__field .chat__input { width: 100%; }
.contact-form__message {
    font-family: var(--font-sans);
    line-height: 1.7;
    resize: vertical;
    min-height: 9rem;
}

.contact-form__foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 1.5rem;
}
.contact-form__status {
    font-size: .82rem;
    color: var(--titanium-dim);
    margin: 0;
}
.contact-form__status.is-error { color: var(--accent); }
.contact-form__status.is-ok { color: var(--ink); }

.contact-form__privacy {
    font-size: .75rem;
    line-height: 1.65;
    color: var(--titanium-dim);
    margin: 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}

/* Honeypot: present for bots, invisible to people */
.contact-form__trap {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}


/* --------------------------------------------------------------------------
   13 Client network map — the exhibit frame is shared (see 07)
   -------------------------------------------------------------------------- */

/* SVG text styles shared by every drawn exhibit */
.svg text {
    font-family: var(--font-mono);
    text-transform: uppercase;
    fill: var(--titanium);
}

/* --------------------------------------------------------------------------
   11j Business Upgrade — seat toggles and the signs list
   -------------------------------------------------------------------------- */

/* Each seat reveals its four moves; details/summary works without JS */
.burden details { margin-top: .4rem; }
.burden summary {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: .6rem;
    letter-spacing: .26em;
    text-transform: uppercase;
    color: var(--accent);
    transition: color var(--m-fast) linear;
}
.burden summary::before { content: "+"; font-size: .85rem; line-height: 1; }
.burden details[open] summary::before { content: "\2212"; /* minus */ }
.burden summary:hover { color: var(--ink); }

.burden__moves { display: flex; flex-direction: column; gap: .8rem; padding-top: .9rem; }
.burden__move span {
    display: block;
    font-family: var(--font-mono);
    font-size: .6rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: .15rem;
}
.burden__move p { font-size: .82rem; line-height: 1.6; margin: 0; }

/* The eight warning signs: a scanned list, two columns on wide screens */
.sign-list {
    list-style: none;
    width: 100%;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}
@media (max-width: 47.9rem) { .sign-list { grid-template-columns: 1fr; } }

.sign-list li {
    position: relative;
    background: var(--panel);
    padding: 1.05rem 1.25rem 1.05rem 2.75rem;
    font-size: .9rem;
    line-height: 1.65;
    color: var(--titanium);
    transition: color var(--m-fast) linear, background var(--m-fast) linear;
}
.sign-list li::before {
    content: "\2192"; /* arrow */
    position: absolute;
    left: 1.25rem;
    top: 1.05rem;
    color: var(--accent);
    font-family: var(--font-mono);
}
.sign-list li:hover { color: var(--ink); background: color-mix(in srgb, var(--panel-muted) 55%, transparent); }

.svg .f-ink { fill: var(--ink); }
.svg .f-acc { fill: var(--accent); }
.svg .f-dim { fill: var(--titanium-dim); }
.svg .t-xs { font-size: 8px; letter-spacing: .35px; }
.svg .t-sm { font-size: 8.5px; letter-spacing: 2px; }
.svg .t-md { font-size: 10px; letter-spacing: 1.2px; }
.svg .t-lg { font-size: 14.5px; letter-spacing: 3px; }
.svg .t-node {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: none;
}
.svg .t-num { font-size: 32px; font-weight: 700; letter-spacing: -1px; font-family: var(--font-display); text-transform: none; }

/* Keyboard-focusable diagram groups */
.hotspot { cursor: help; transition: opacity var(--m-fast) linear; }
.hotspot:focus-visible { outline: 1.5px solid var(--accent); outline-offset: 4px; }
.hotspot:hover .hover-ring, .hotspot:focus-visible .hover-ring { stroke: var(--accent); stroke-width: 2.4; }

/* World-map stage: self-hosted map silhouette under the route overlay */
.map-stage {
    position: relative;
    aspect-ratio: 950 / 620;
}
.map-stage__land {
    position: absolute;
    inset: 0;
    background: var(--line);
    -webkit-mask-image: url("world-map.svg");
    mask-image: url("world-map.svg");
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
}
.map-stage__routes {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}


/* --------------------------------------------------------------------------
   14 Testimonials — "Field Records"
   -------------------------------------------------------------------------- */

.tst {
    position: relative;
    border: 1px solid var(--line);
    background: var(--panel);
    min-height: 22rem;
    display: flex;
    align-items: center;
    padding: clamp(2rem, 5vw, 4rem);
    overflow: hidden;
}
.tst__slides { position: relative; width: 100%; min-height: 16rem; }
.tst__slide {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--m-deliberate) var(--ease-settle), visibility 0s var(--m-deliberate);
}
.tst__slide[data-active="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity var(--m-deliberate) var(--ease-settle);
}

.tst__stamp {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    color: var(--accent);
}
.tst__stamp::before { content: ""; width: .4rem; height: .4rem; background: var(--accent); }

.tst__quote {
    font-family: var(--font-display);
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    font-weight: 500;
    line-height: 1.55;
    color: var(--titanium);
    max-width: 44rem;
}
.tst__who { font-family: var(--font-mono); font-size: .65rem; letter-spacing: .2em; text-transform: uppercase; color: var(--titanium-dim); }
.tst__who strong { color: var(--ink); font-weight: 600; }

.tst__avatar {
    width: 3.5rem; height: 3.5rem;
    display: grid; place-items: center;
    border: 1px solid var(--accent-line);
    color: var(--ink);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
}

.tst__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--titanium);
    padding: .6rem;
    cursor: pointer;
    z-index: 2;
    transition: color var(--m-fast) linear, border-color var(--m-fast) linear;
}
.tst__arrow:hover { color: var(--accent); border-color: var(--accent-line); }
.tst__arrow--prev { left: 1rem; }
.tst__arrow--next { right: 1rem; }
@media (max-width: 55rem) { .tst__arrow { display: none; } }

.tst__dots { display: flex; justify-content: center; gap: .75rem; margin-top: 1.5rem; }
.tst__dot {
    width: .55rem; height: .55rem;
    padding: 0;
    background: var(--line);
    border: 0;
    cursor: pointer;
    transition: background var(--m-fast) linear;
}
.tst__dot[data-active="true"] { background: var(--accent); }
.tst__dot:hover { background: var(--titanium); }


/* --------------------------------------------------------------------------
   15 Close panel — the escalation strip and final CTA
   -------------------------------------------------------------------------- */

.close-panel {
    background: var(--panel);
    border-top: 1px solid var(--line);
    position: relative;
    /* Breathing room between the closing exhibit and the footer */
    padding-bottom: clamp(2.5rem, 6vw, 4rem);
}
.close-panel__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding-block: var(--section-pad);
    text-align: center;
}
.close-panel__inner > div { max-width: 40rem; }
.close-panel__inner .lead { margin-inline: auto; }


/* --------------------------------------------------------------------------
   16 Footer
   -------------------------------------------------------------------------- */

.site-footer { border-top: 1px solid var(--line); background: var(--bg); }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-block: 4rem;
}
@media (max-width: 63.9rem) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 40rem)  { .footer-grid { grid-template-columns: 1fr; } }

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: .65rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--ink);
    margin-bottom: 1.1rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: .65rem; }
.footer-col a, .footer-col p { font-size: .85rem; color: var(--titanium); }
.footer-col a:hover { color: var(--ink); }
.footer-brand p { margin-top: 1rem; max-width: 22rem; font-size: .8rem; line-height: 1.65; }
.footer-brand a { color: var(--accent); }
.footer-brand a:hover { color: var(--ink); }

.footer-bottom {
    border-top: 1px solid var(--line);
    padding-block: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: .75rem 2rem;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: .65rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--titanium-dim);
}


/* --------------------------------------------------------------------------
   17 Motion — reveals, textures, and the motion toggle
   -------------------------------------------------------------------------- */

/* Scroll reveal (only when JS is present; without JS everything is visible) */
.js .reveal { opacity: 0; transform: translateY(10px); transition: opacity var(--m-deliberate) var(--ease-settle), transform var(--m-deliberate) var(--ease-settle); }
.js .reveal[data-visible="true"] { opacity: 1; transform: none; }

/* Blueprint grid: hairline squares fading downward, on hero + close */
.blueprint { position: relative; }
.blueprint::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, color-mix(in oklab, var(--titanium) 8%, transparent) 1px, transparent 1px),
        linear-gradient(to bottom, color-mix(in oklab, var(--titanium) 8%, transparent) 1px, transparent 1px);
    background-size: 72px 72px;
    -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
    mask-image: radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
}

/* Film grain: fractal noise at 3.5%, same texture as thepico.in */
.grain::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .035;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
.blueprint.grain { isolation: isolate; }

/* Motion toggle in the header */
.motion-toggle {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: none;
    border: 0;
    color: var(--titanium-dim);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: .55rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    padding: .25rem;
}
.motion-toggle:hover { color: var(--ink); }
.motion-toggle__dot { width: .38rem; height: .38rem; border-radius: 50%; background: var(--accent); }
html[data-motion="reduced"] .motion-toggle__dot { background: var(--titanium-dim); }
@media (max-width: 55rem) { .motion-toggle { display: none; } }

/* The gate: every animation runs only under data-motion="standard" */
html[data-motion="reduced"] .reveal,
html:not([data-motion]) .reveal { opacity: 1; transform: none; }
html[data-motion="reduced"] *, html:not([data-motion]) * { animation: none !important; }
html[data-motion="reduced"] .packet, html:not([data-motion]) .packet { display: none; }
html[data-motion="reduced"] .draw, html:not([data-motion]) .draw { stroke-dashoffset: 0; }
html[data-motion="reduced"] .fade, html:not([data-motion]) .fade { opacity: 1; }

/* OS-level preference also stills the page, even before JS runs */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
    .draw { stroke-dashoffset: 0; }
    .fade { opacity: 1; }
    .packet { display: none; }
}


/* --------------------------------------------------------------------------
   18 SVG animation grammar — draw / fade / march / packet / pulse
   Elements opt in with classes; the exhibit frame fires the cascade when
   it scrolls into view (JS sets data-visible on .exhibit and .reveal).
   -------------------------------------------------------------------------- */

/* Stroke draw-on: every path carries pathLength="1" */
.draw { stroke-dasharray: 1; stroke-dashoffset: 1; }
[data-visible="true"] .draw { animation: draw-on var(--m-draw) var(--ease-precise) forwards; }
@keyframes draw-on { to { stroke-dashoffset: 0; } }

/* Fade-in blocks (labels, callouts, hatches) */
.fade { opacity: 0; }
[data-visible="true"] .fade { animation: fade-in var(--m-deliberate) ease-out forwards; }
@keyframes fade-in { to { opacity: 1; } }

/* Dashed flow lines march forward forever */
[data-visible="true"] .march { animation: march 1.4s linear infinite; }
@keyframes march { to { stroke-dashoffset: -28px; } }

/* Throughput packets ride a motion path (path supplied by JS from data-path) */
.packet { opacity: 0; offset-rotation: 0deg; }
[data-visible="true"] .packet { animation: packet-ride 2.6s linear infinite, fade-in .4s ease-out forwards; }
@keyframes packet-ride { to { offset-distance: 100%; } }

/* Red incident markers breathe */
.pulse-red { animation: pulse-dot 2.4s ease-in-out infinite; }

/* Stagger ladder — 0.12s steps */
.d-0 { animation-delay: 0s; }
.d-1 { animation-delay: .12s; }
.d-2 { animation-delay: .24s; }
.d-3 { animation-delay: .36s; }
.d-4 { animation-delay: .48s; }
.d-5 { animation-delay: .6s; }
.d-6 { animation-delay: .72s; }
.d-7 { animation-delay: .84s; }
.d-8 { animation-delay: .96s; }