/* ==========================================================================
   kabirkenth.me — design system
   Near-black ground, bone text, one amber accent. Editorial serif display,
   grotesque body, mono for structural labels.
   ========================================================================== */

:root {
    /* ground */
    --ink-000: #08080a;
    --ink-050: #0d0d10;
    --ink-100: #131317;
    --ink-200: #1b1b21;
    --ink-300: #26262e;
    --ink-400: #3a3a45;

    /* text */
    --bone:    #eceae4;
    --bone-dim:#a8a49b;
    --bone-mut:#6f6c66;

    /* accent */
    --amber:   #e0a253;
    --amber-lo:#8a6330;
    --amber-wash: rgba(224, 162, 83, 0.10);

    /* semantic */
    --live:    #6fbf8a;
    --slate:   #6b7f96;

    --edge:    rgba(236, 234, 228, 0.09);
    --edge-hi: rgba(236, 234, 228, 0.18);

    --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
    --sans:  "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

    --wrap: 1180px;
    --gut: clamp(1.25rem, 4vw, 3.5rem);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
    margin: 0;
    background: var(--ink-000);
    color: var(--bone);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

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

/* ---------- type ---------- */

h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.015em; margin: 0; }

h1 { font-size: clamp(2.6rem, 6.4vw, 4.6rem); line-height: 1.02; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); line-height: 1.08; }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); line-height: 1.15; }

h1 em, h2 em { font-style: italic; color: var(--amber); }

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

.lede { font-size: clamp(1.05rem, 1.6vw, 1.28rem); line-height: 1.6; color: var(--bone-dim); max-width: 62ch; }
.lede strong { color: var(--bone); font-weight: 500; }

.label {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--bone-mut);
    margin: 0 0 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}
.label::before {
    content: "";
    width: 1.6rem; height: 1px;
    background: var(--amber);
    flex: none;
}
.label.plain::before { display: none; }

/* ---------- nav ---------- */

.nav {
    position: sticky; top: 0; z-index: 60;
    background: rgba(8, 8, 10, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--edge);
}
.nav-inner {
    max-width: var(--wrap); margin-inline: auto; padding: 0.85rem var(--gut);
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.nav-mark {
    font-family: var(--mono); font-size: 0.83rem; font-weight: 500;
    letter-spacing: 0.02em; text-decoration: none; color: var(--bone);
}
.nav-mark .tld { color: var(--bone-mut); }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a {
    font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.03em;
    text-decoration: none; color: var(--bone-dim);
    transition: color 0.18s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--bone); }
.nav-links a[aria-current="page"] { color: var(--amber); }

.nav-toggle {
    display: none; background: none; border: 1px solid var(--edge-hi);
    color: var(--bone-dim); font-family: var(--mono); font-size: 0.72rem;
    letter-spacing: 0.1em; text-transform: uppercase;
    padding: 0.45rem 0.7rem; border-radius: 3px; cursor: pointer;
}

@media (max-width: 800px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none; position: absolute; left: 0; right: 0; top: 100%;
        flex-direction: column; align-items: flex-start; gap: 0;
        background: var(--ink-050); border-bottom: 1px solid var(--edge);
        padding: 0.5rem var(--gut) 1.1rem;
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 0.7rem 0; font-size: 0.92rem; width: 100%; }
}

/* ---------- buttons ---------- */

.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em;
    text-decoration: none; color: var(--bone);
    border: 1px solid var(--edge-hi); border-radius: 3px;
    padding: 0.62rem 1.05rem;
    transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.btn:hover { border-color: var(--amber); color: var(--amber); }
.btn-solid {
    background: var(--amber); border-color: var(--amber); color: var(--ink-000); font-weight: 500;
}
.btn-solid:hover { background: #edb268; border-color: #edb268; color: var(--ink-000); }

/* ---------- sections ---------- */

.section { padding: clamp(3.5rem, 9vw, 7rem) 0; }
.section + .section { padding-top: 0; }
.rule { height: 1px; background: var(--edge); border: 0; margin: 0; }

/* ---------- hero ---------- */

.hero {
    position: relative;
    padding: clamp(3.5rem, 11vw, 8rem) 0 clamp(7rem, 15vw, 11rem);
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 80% 55% at 15% 0%, rgba(224,162,83,0.07), transparent 70%);
    opacity: 0.9;
    pointer-events: none;
    z-index: 0;
}
.hero::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(8,8,10,0.35) 0%, rgba(8,8,10,0.85) 70%, var(--ink-000) 100%);
    pointer-events: none; z-index: 0;
}
.hero .wrap { position: relative; z-index: 2; }

.hero-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: end; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; align-items: start; } }

.hero h1 { margin-bottom: 1.4rem; max-width: 16ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2rem; }

/* fact strip */
.facts { border-top: 1px solid var(--edge); display: grid; gap: 0; }
.fact { padding: 1rem 0; border-bottom: 1px solid var(--edge); display: grid; grid-template-columns: 5.5rem 1fr; gap: 1rem; align-items: baseline; }
.fact dt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bone-mut); }
.fact dd { margin: 0; font-size: 0.92rem; color: var(--bone-dim); }
.fact dd strong { color: var(--bone); font-weight: 500; }

/* ---------- work index (editorial table of contents) ---------- */

.work-index { border-top: 1px solid var(--edge-hi); }

.work-row {
    display: grid;
    grid-template-columns: 3.2rem minmax(0, 1.6fr) minmax(0, 1.4fr) 8rem;
    gap: clamp(1rem, 3vw, 2.5rem);
    align-items: start;
    padding: clamp(1.6rem, 3.5vw, 2.6rem) 0;
    border-bottom: 1px solid var(--edge);
    text-decoration: none;
    color: inherit;
    position: relative;
    transition: background 0.2s ease;
}
.work-row::before {
    content: ""; position: absolute; left: calc(var(--gut) * -1); right: calc(var(--gut) * -1); top: 0; bottom: 0;
    background: linear-gradient(90deg, var(--amber-wash), transparent 60%);
    opacity: 0; transition: opacity 0.2s ease; pointer-events: none;
}
.work-row:hover::before { opacity: 1; }
.work-row:hover .work-title { color: var(--amber); }
.work-row:hover .work-go { color: var(--amber); transform: translateX(3px); }

.work-num { font-family: var(--mono); font-size: 0.75rem; color: var(--bone-mut); padding-top: 0.45rem; }
.work-title { font-family: var(--serif); font-size: clamp(1.4rem, 2.6vw, 2rem); line-height: 1.1; margin: 0 0 0.5rem; transition: color 0.2s ease; }
.work-sub { font-size: 0.93rem; color: var(--bone-dim); margin: 0; }
.work-note { font-size: 0.92rem; color: var(--bone-dim); margin: 0 0 0.9rem; }
.work-go { font-family: var(--mono); font-size: 0.75rem; color: var(--bone-mut); justify-self: end; padding-top: 0.5rem; white-space: nowrap; transition: color 0.2s ease, transform 0.2s ease; display: inline-block; }

@media (max-width: 860px) {
    .work-row { grid-template-columns: 2.4rem 1fr; }
    .work-row > *:nth-child(3) { grid-column: 2; }
    .work-go { grid-column: 2; justify-self: start; }
}

/* ---------- meta / status ---------- */

.meta-line { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem; margin-bottom: 0.8rem; }

.status {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.11em; text-transform: uppercase;
    padding: 0.22rem 0.5rem; border-radius: 2px; border: 1px solid;
}
.status-live { color: var(--live); border-color: rgba(111,191,138,0.4); background: rgba(111,191,138,0.08); }
.status-build { color: var(--amber); border-color: rgba(224,162,83,0.4); background: var(--amber-wash); }
.status-arch { color: var(--slate); border-color: rgba(107,127,150,0.4); background: rgba(107,127,150,0.08); }
.year { font-family: var(--mono); font-size: 0.72rem; color: var(--bone-mut); }

/* ---------- stack chips ---------- */

.stack { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0; margin: 0; }
.stack li {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.02em;
    color: var(--bone-dim);
    border: 1px solid var(--edge); border-radius: 2px;
    padding: 0.2rem 0.5rem;
    background: var(--ink-100);
}

/* ---------- prose ---------- */

.prose { max-width: 68ch; }
.prose h3 { margin: 2.6rem 0 0.9rem; }
.prose h3:first-child { margin-top: 0; }
.prose p { color: var(--bone-dim); }
.prose strong { color: var(--bone); font-weight: 500; }
.prose a { color: var(--amber); text-underline-offset: 3px; }
.prose ul { padding-left: 1.1rem; margin: 0 0 1.2rem; color: var(--bone-dim); }
.prose li { margin-bottom: 0.5rem; }
.prose li::marker { color: var(--amber-lo); }

/* pull quote / decision callout */
.callout {
    border-left: 2px solid var(--amber);
    background: linear-gradient(90deg, var(--amber-wash), transparent);
    padding: 1rem 1.2rem;
    margin: 1.6rem 0;
    border-radius: 0 3px 3px 0;
}
.callout p { margin: 0; color: var(--bone); font-size: 0.97rem; }
.callout .callout-k {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.13em;
    text-transform: uppercase; color: var(--amber); display: block; margin-bottom: 0.4rem;
}

/* honest limitations block */
.honest {
    border: 1px dashed var(--edge-hi);
    border-radius: 4px;
    padding: 1.15rem 1.3rem;
    background: var(--ink-050);
    margin: 1.8rem 0;
}
.honest .callout-k {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.13em;
    text-transform: uppercase; color: var(--bone-mut); display: block; margin-bottom: 0.5rem;
}
.honest p, .honest li { color: var(--bone-dim); font-size: 0.94rem; margin-bottom: 0.4rem; }
.honest ul { margin-bottom: 0; }

/* ---------- decision table ---------- */

.decisions { width: 100%; border-collapse: collapse; margin: 1.6rem 0; font-size: 0.92rem; }
.decisions th, .decisions td { text-align: left; padding: 0.85rem 1rem 0.85rem 0; border-bottom: 1px solid var(--edge); vertical-align: top; }
.decisions th {
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--bone-mut); font-weight: 400; border-bottom-color: var(--edge-hi);
}
.decisions td { color: var(--bone-dim); }
.decisions td:first-child { color: var(--bone); width: 30%; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---------- architecture diagram ---------- */

.diagram {
    border: 1px solid var(--edge);
    border-radius: 5px;
    background:
        linear-gradient(var(--ink-050), var(--ink-050)) padding-box,
        radial-gradient(ellipse at 20% 0%, rgba(224,162,83,0.06), transparent 60%) padding-box;
    padding: clamp(1rem, 3vw, 1.9rem);
    margin: 1.9rem 0;
    overflow-x: auto;
}
.diagram svg { display: block; min-width: 640px; width: 100%; height: auto; }
.diagram figcaption {
    font-family: var(--mono); font-size: 0.71rem; color: var(--bone-mut);
    margin-top: 1rem; line-height: 1.6; min-width: 0;
}

/* svg primitives */
.d-box { fill: var(--ink-200); stroke: var(--edge-hi); stroke-width: 1; }
.d-box-accent { fill: rgba(224,162,83,0.10); stroke: var(--amber); stroke-width: 1.2; }
.d-box-gate { fill: rgba(224,162,83,0.16); stroke: var(--amber); stroke-width: 1.6; }
.d-group { fill: none; stroke: var(--edge); stroke-width: 1; stroke-dasharray: 3 4; }
.d-t { font-family: var(--sans); font-size: 12px; fill: var(--bone); }
.d-t-sm { font-family: var(--mono); font-size: 9.5px; fill: var(--bone-mut); letter-spacing: 0.04em; }
.d-t-accent { font-family: var(--mono); font-size: 9.5px; fill: var(--amber); letter-spacing: 0.06em; }
.d-t-group { font-family: var(--mono); font-size: 9px; fill: var(--bone-mut); letter-spacing: 0.14em; text-transform: uppercase; }
.d-line { stroke: var(--edge-hi); stroke-width: 1.2; fill: none; }
.d-line-accent { stroke: var(--amber); stroke-width: 1.4; fill: none; }
.d-line-dash { stroke: var(--bone-mut); stroke-width: 1; fill: none; stroke-dasharray: 4 4; }

/* ---------- contact ---------- */

.contact-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--edge); }
.contact-list li { border-bottom: 1px solid var(--edge); }
.contact-list a {
    display: grid; grid-template-columns: 7rem 1fr auto; gap: 1rem; align-items: baseline;
    padding: 1rem 0; text-decoration: none; transition: color 0.18s ease;
}
.contact-list .k { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bone-mut); }
.contact-list .v { color: var(--bone); font-size: 0.97rem; }
.contact-list a:hover .v { color: var(--amber); }
.contact-list .go { font-family: var(--mono); font-size: 0.7rem; color: var(--bone-mut); }

/* ---------- form ---------- */

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.field { margin-bottom: 1rem; }
.field label {
    display: block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--bone-mut); margin-bottom: 0.4rem;
}
.field input, .field textarea {
    width: 100%; background: var(--ink-100); border: 1px solid var(--edge-hi);
    border-radius: 3px; color: var(--bone); font-family: var(--sans); font-size: 0.95rem;
    padding: 0.7rem 0.85rem; transition: border-color 0.18s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--amber); }
.field textarea { resize: vertical; }

/* ---------- timeline ---------- */

.timeline { border-top: 1px solid var(--edge-hi); }
.t-item {
    display: grid; grid-template-columns: 11rem 1fr; gap: clamp(1rem, 3vw, 2.5rem);
    padding: clamp(1.6rem, 3vw, 2.4rem) 0; border-bottom: 1px solid var(--edge);
}
@media (max-width: 760px) { .t-item { grid-template-columns: 1fr; gap: 0.6rem; } }
.t-when { font-family: var(--mono); font-size: 0.74rem; color: var(--bone-mut); margin: 0.35rem 0 0; letter-spacing: 0.03em; }
.t-item h3 { margin-bottom: 0.25rem; }
.t-org { font-size: 0.88rem; color: var(--amber); margin: 0 0 0.9rem; font-family: var(--mono); letter-spacing: 0.02em; }
.t-item ul { padding-left: 1.05rem; margin: 0 0 1rem; color: var(--bone-dim); font-size: 0.95rem; }
.t-item li { margin-bottom: 0.45rem; }
.t-item li::marker { color: var(--amber-lo); }

/* ---------- footer ---------- */

.footer { border-top: 1px solid var(--edge); padding: 2.2rem 0 3rem; margin-top: 3rem; }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.footer p { font-family: var(--mono); font-size: 0.72rem; color: var(--bone-mut); margin: 0; }
.footer-links { display: flex; gap: 1.3rem; }
.footer-links a { font-family: var(--mono); font-size: 0.72rem; color: var(--bone-dim); text-decoration: none; }
.footer-links a:hover { color: var(--amber); }

/* ---------- reveal ---------- */

.js .reveal { opacity: 0; transform: translateY(14px); }
.js .reveal.on { opacity: 1; transform: none; transition: opacity 0.6s cubic-bezier(.2,.7,.3,1), transform 0.6s cubic-bezier(.2,.7,.3,1); }
@media (prefers-reduced-motion: reduce) {
    .js .reveal { opacity: 1; transform: none; }
}

/* ---------- misc ---------- */

.two-col { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.page-head { padding: clamp(2.8rem, 7vw, 5rem) 0 clamp(1.5rem, 3vw, 2.5rem); border-bottom: 1px solid var(--edge); }
.page-head h1 { margin-bottom: 1.1rem; max-width: 18ch; }

.back {
    font-family: var(--mono); font-size: 0.75rem; color: var(--bone-mut);
    text-decoration: none; display: inline-flex; gap: 0.45rem; margin-bottom: 1.6rem;
}
.back:hover { color: var(--amber); }

.skip {
    position: absolute; left: -9999px;
}
.skip:focus {
    left: var(--gut); top: 0.5rem; z-index: 100; background: var(--amber); color: var(--ink-000);
    padding: 0.5rem 0.9rem; border-radius: 3px; font-family: var(--mono); font-size: 0.8rem;
}

/* ---------- portrait ---------- */

.portrait {
    width: 100%;
    max-width: 320px;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid var(--edge-hi);
    filter: saturate(0.88) contrast(1.03);
    margin-bottom: 1.5rem;
}
.portrait-cap {
    font-family: var(--mono);
    font-size: 0.71rem;
    color: var(--bone-mut);
    margin: -0.9rem 0 1.8rem;
    line-height: 1.6;
}

.byline { display: flex; align-items: center; gap: 0.9rem; margin-bottom: 1.4rem; }
.byline img {
    width: 60px; height: 60px; flex: none;
    border-radius: 50%; object-fit: cover;
    border: 1px solid var(--edge-hi);
    filter: saturate(0.88) contrast(1.03);
}
.byline .who { font-family: var(--mono); font-size: 0.75rem; line-height: 1.55; color: var(--bone-dim); }
.byline .who strong { display: block; color: var(--bone); font-weight: 500; letter-spacing: 0.02em; }

/* optional art band on interior page headers */
.page-head.art { position: relative; overflow: hidden; }
.page-head.art::before {
    content: ""; position: absolute; inset: 0;
    background: var(--head-art, none) center 28% / cover no-repeat;
    opacity: 0.5; z-index: 0;
}
.page-head.art::after {
    content: ""; position: absolute; inset: 0; z-index: 0;
    background: linear-gradient(180deg, rgba(8,8,10,0.55) 0%, rgba(8,8,10,0.88) 62%, var(--ink-000) 100%);
}
.page-head.art .wrap { position: relative; z-index: 1; }

/* hero art band — hand-drawn SVG, same language as the architecture diagrams */
.hero-band {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    aspect-ratio: 1600 / 260;
    max-height: 46vh;
    background: var(--band-art) center bottom / 100% 100% no-repeat;
    opacity: 0.9;
    pointer-events: none;
    z-index: 1;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 38%, #000 88%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, #000 38%, #000 88%, transparent 100%);
}
@media (max-width: 700px) { .hero-band { opacity: 0.6; } }

/* ==========================================================================
   Interactive diagrams and demonstration widgets
   ========================================================================== */

/* --- flowing token --- */
.flow-token { opacity: 0; transition: opacity 0.25s ease; }
.flow-token.on { opacity: 1; }
.flow-token .tok-halo { fill: var(--amber); opacity: 0.16; }
.flow-token .tok-dot  { fill: #ffd39b; }
.flow-token.tok-b .tok-halo { fill: var(--slate); opacity: 0.2; }
.flow-token.tok-b .tok-dot  { fill: #cfe0f2; }

/* --- node highlight states --- */
.diagram [data-node] { transition: fill 0.3s ease, stroke 0.3s ease, filter 0.3s ease; }
.diagram [data-node].n-active {
    stroke: var(--amber);
    stroke-width: 1.7;
    fill: rgba(224, 162, 83, 0.16);
}
.diagram [data-node].n-done { stroke: var(--live); stroke-width: 1.4; }

.diagram.held [data-node="gate"] { animation: gatePulse 1.5s ease-in-out infinite; }
@keyframes gatePulse {
    0%, 100% { stroke-opacity: 1; }
    50%      { stroke-opacity: 0.35; }
}
@media (prefers-reduced-motion: reduce) {
    .diagram.held [data-node="gate"] { animation: none; }
}

/* --- controls under a diagram --- */
.flow-controls {
    display: flex; flex-wrap: wrap; gap: 0.9rem;
    align-items: center; justify-content: space-between;
    margin-top: 1rem; padding-top: 0.95rem;
    border-top: 1px solid var(--edge);
}
.flow-status {
    font-family: var(--mono); font-size: 0.76rem; line-height: 1.5;
    color: var(--bone-dim); flex: 1 1 16rem; min-width: 0;
}
.flow-status.is-work { color: var(--bone-dim); }
.flow-status.is-hold { color: var(--amber); }
.flow-status.is-warn { color: #e08a53; }
.flow-status.is-ok   { color: var(--live); }
.flow-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.flow-actions .btn { padding: 0.42rem 0.85rem; font-size: 0.73rem; cursor: pointer; background: none; }
.flow-actions .btn.btn-solid { background: var(--amber); }
.flow-actions .btn[disabled] { opacity: 0.32; cursor: not-allowed; }
.flow-actions .btn[disabled]:hover { border-color: var(--edge-hi); color: var(--bone); }
.diagram.awaiting { border-color: rgba(224, 162, 83, 0.45); }

/* --- shared widget shell --- */
.widget {
    border: 1px solid var(--edge);
    border-radius: 5px;
    background: var(--ink-050);
    padding: clamp(1rem, 3vw, 1.6rem);
    margin: 1.9rem 0;
}
.widget-head { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: baseline; justify-content: space-between; margin-bottom: 1.1rem; }
.widget-head h4 {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.13em;
    text-transform: uppercase; color: var(--amber); margin: 0; font-weight: 500;
}
.widget-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.widget-actions .btn { padding: 0.42rem 0.85rem; font-size: 0.73rem; cursor: pointer; background: none; }
.widget-actions .btn.btn-solid { background: var(--amber); }

/* --- idempotency --- */
.idem-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 680px) { .idem-cols { grid-template-columns: 1fr; } }
.idem-col { border: 1px solid var(--edge); border-radius: 4px; padding: 0.85rem; background: var(--ink-100); }
.idem-col h5 {
    font-family: var(--mono); font-size: 0.72rem; margin: 0 0 0.2rem;
    color: var(--bone); font-weight: 500; letter-spacing: 0.02em;
}
.idem-col .sub { font-family: var(--mono); font-size: 0.66rem; color: var(--bone-mut); margin: 0 0 0.7rem; }
.idem-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.28rem; }
.idem-col .row {
    display: grid; grid-template-columns: 1fr auto auto; gap: 0.6rem; align-items: baseline;
    font-family: var(--mono); font-size: 0.7rem;
    border: 1px solid var(--edge); border-radius: 3px;
    padding: 0.32rem 0.5rem; color: var(--bone-dim);
    background: var(--ink-200);
}
.idem-col .row .tag { font-size: 0.62rem; color: var(--bone-mut); letter-spacing: 0.06em; }
.idem-col .row.is-dupe { border-color: rgba(224,110,83,0.5); background: rgba(224,110,83,0.10); color: #f0b09a; }
.idem-col .row.is-dupe .tag { color: #e08a53; }
.idem-col .row.is-updated { border-color: rgba(224,162,83,0.45); background: var(--amber-wash); }
.idem-col .row.is-updated .tag { color: var(--amber); }
.idem-tally {
    display: flex; gap: 1.1rem; flex-wrap: wrap;
    font-family: var(--mono); font-size: 0.68rem; color: var(--bone-mut);
    margin-top: 0.7rem; padding-top: 0.6rem; border-top: 1px solid var(--edge);
}
.idem-tally b { color: var(--bone); font-weight: 500; }
.idem-tally .bad { color: #e08a53; }
.idem-note {
    font-family: var(--mono); font-size: 0.72rem; line-height: 1.6;
    color: var(--bone-dim); margin: 1rem 0 0; padding-top: 0.85rem;
    border-top: 1px solid var(--edge);
}
.widget.diverged .idem-note { color: #e0a253; }

/* --- state machine --- */
.sm-track { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0; margin: 0 0 1.1rem; }
.sm-node {
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.03em;
    border: 1px solid var(--edge); border-radius: 3px;
    padding: 0.32rem 0.6rem; color: var(--bone-mut); background: var(--ink-100);
    transition: all 0.25s ease;
}
.sm-node.is-past { color: var(--bone-dim); border-color: var(--edge-hi); }
.sm-node.is-gate { border-style: dashed; }
.sm-node.is-now {
    color: var(--ink-000); background: var(--amber); border-color: var(--amber); font-weight: 500;
}
.sm-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.sm-actions .btn { padding: 0.42rem 0.85rem; font-size: 0.73rem; cursor: pointer; background: none; }
.sm-actions .btn.btn-solid { background: var(--amber); }
.sm-done { font-family: var(--mono); font-size: 0.72rem; color: var(--live); margin: 0; }
.sm-log {
    list-style: none; margin: 1.1rem 0 0; padding: 0.7rem 0 0;
    border-top: 1px solid var(--edge);
    font-family: var(--mono); font-size: 0.68rem; color: var(--bone-mut);
    max-height: 7.5rem; overflow-y: auto; display: grid; gap: 0.2rem;
}
.sm-log:empty { display: none; }

/* --- live status --- */
.live-status {
    border: 1px solid rgba(111,191,138,0.3);
    background: rgba(111,191,138,0.06);
    border-radius: 5px; padding: 1rem 1.2rem; margin: 1.9rem 0;
}
.live-status .live-head {
    display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.8rem;
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.13em;
    text-transform: uppercase; color: var(--bone-mut);
}
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--live); flex: none; animation: livePulse 2.4s ease-in-out infinite; }
@keyframes livePulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
@media (prefers-reduced-motion: reduce) { .live-dot { animation: none; } }
.live-grid { display: flex; flex-wrap: wrap; gap: 1.6rem; }
.live-grid div { display: grid; gap: 0.15rem; }
.live-grid dt { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bone-mut); }
.live-grid dd { margin: 0; font-family: var(--mono); font-size: 0.95rem; color: var(--bone); }
.live-pill {
    font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em;
    padding: 0.15rem 0.45rem; border-radius: 2px; border: 1px solid;
}
.live-pill.is-ok { color: var(--live); border-color: rgba(111,191,138,0.45); }
.live-pill.is-warn { color: var(--amber); border-color: rgba(224,162,83,0.45); }