/* ============================================================================
   FOUNDRY GARAGE DOORS — Newcastle
   Steel-town workshop register. Gunmetal + concrete + hot-forge red.
   Sharp corners, strong horizontals (panel seams / track rails), milled weight.
   Red is CTA + urgent-fault ONLY. Never a background wash.
   ========================================================================== */

:root {
  /* Ink */
  --ink:          oklch(21% 0.004 260);   /* #17181a coal black */
  --ink-soft:     oklch(45% 0.006 260);   /* #4a4d52 rolled-steel grey */

  /* Grounds */
  --paper:        oklch(94% 0.006 85);    /* #f0efe9 concrete off-white */
  --paper-raised: oklch(90% 0.007 85);    /* #e6e4dc panel-on-slab */

  /* Steel */
  --primary:      oklch(38% 0.008 255);   /* #33363b gunmetal graphite */
  --primary-deep: oklch(24% 0.006 255);   /* #1f2124 coal black */
  --highlight:    oklch(70% 0.012 235);   /* #9fa6ab galvanised-zinc silver */

  /* Accent — load-bearing, sparing */
  --accent:       oklch(48% 0.19 26);     /* #c22f26 hot-forge red */
  --accent-deep:  oklch(39% 0.17 25);     /* #9c231c pressed */

  --success:      oklch(52% 0.09 142);    /* #4d7a4a workshop green */

  --line:         color-mix(in oklab, var(--ink) 14%, transparent);
  --line-strong:  color-mix(in oklab, var(--ink) 26%, transparent);

  --font-display: "Archivo Black", "Arial Black", sans-serif;
  --font-body:    "Roboto Condensed", "Arial Narrow", system-ui, sans-serif;

  --wrap: 1180px;
  --radius: 3px;
  --shadow: 0 1px 0 var(--line-strong), 0 14px 34px -22px color-mix(in oklab, var(--ink) 55%, transparent);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-deep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.02; letter-spacing: -0.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.35rem, 6.2vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 4.4vw, 2.9rem); }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.55rem); }
p { margin: 0 0 1rem; }
::placeholder { color: hsl(0 0% 40% / 0.35); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- layout ---------- */
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2.2rem); }
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section--tight { padding-block: clamp(2rem, 4vw, 3rem); }
.stack > * + * { margin-top: 1rem; }
.lead { font-size: clamp(1.1rem, 2vw, 1.32rem); color: var(--ink-soft); max-width: 60ch; }

/* section eyebrow — mechanical numbered label */
.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-weight: 700; font-size: .82rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-soft); margin: 0 0 1rem;
}
.eyebrow::before {
  content: attr(data-num);
  font-family: var(--font-display); color: var(--accent);
  border: 2px solid var(--accent); border-radius: 2px;
  padding: .05em .4em; font-size: .8em; letter-spacing: 0;
}
.eyebrow--light { color: color-mix(in oklab, var(--paper) 75%, transparent); }

/* ---------- buttons ---------- */
.btn {
  --bg: var(--primary); --fg: #fff;
  display: inline-flex; align-items: center; gap: .55rem; justify-content: center;
  font-family: var(--font-body); font-weight: 700; font-size: 1rem;
  letter-spacing: .04em; text-transform: uppercase; text-decoration: none;
  padding: .85rem 1.5rem; border: 2px solid transparent; border-radius: var(--radius);
  background: var(--bg); color: var(--fg); cursor: pointer; line-height: 1.1;
  transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--accent { --bg: var(--accent); }
.btn--accent:hover { --bg: var(--accent-deep); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--ink); background: color-mix(in oklab, var(--ink) 5%, transparent); }
.btn--onDark { background: transparent; color: #fff; border-color: color-mix(in oklab, #fff 45%, transparent); }
.btn--onDark:hover { background: color-mix(in oklab, #fff 12%, transparent); border-color: #fff; }
.btn--lg { padding: 1.05rem 1.9rem; font-size: 1.08rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }
.btn .arrow { transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- header ---------- */
.urgentbar {
  background: var(--primary-deep); color: color-mix(in oklab, #fff 82%, transparent);
  font-size: .9rem; border-bottom: 1px solid color-mix(in oklab, #fff 10%, transparent);
}
.urgentbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .5rem; }
.urgentbar strong { color: #fff; font-weight: 700; }
.urgentbar a { color: #fff; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; font-size: .82rem;
  text-decoration: none; display: inline-flex; align-items: center; gap: .4rem; }
.urgentbar a .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 70%, transparent); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 color-mix(in oklab,var(--accent) 60%,transparent);} 70%{box-shadow:0 0 0 7px transparent;} 100%{box-shadow:0 0 0 0 transparent;} }
.urgentbar .u-note { color: color-mix(in oklab, #fff 62%, transparent); }

.site-head { position: sticky; top: 0; z-index: 40; background: var(--paper);
  border-bottom: 2px solid var(--ink); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .7rem; }
.brand { display: inline-flex; align-items: center; }
.brand img { height: 56px; width: auto; }
.nav-toggle { display: none; }
.nav { display: flex; align-items: center; gap: .3rem; }
.nav a {
  font-weight: 700; text-transform: uppercase; letter-spacing: .05em; font-size: .86rem;
  color: var(--ink); text-decoration: none; padding: .5rem .7rem; border-radius: 2px;
  border-bottom: 3px solid transparent;
}
.nav a:hover { background: color-mix(in oklab, var(--ink) 6%, transparent); }
.nav a.cta { color: #fff; background: var(--accent); border-bottom-color: transparent; margin-left: .4rem; }
.nav a.cta:hover { background: var(--accent-deep); }
body[data-page="services"] .nav a[href="/services/"],
body[data-page="areas"] .nav a[href="/areas/"],
body[data-page="guides"] .nav a[href="/guides/"],
body[data-page="tension-check"] .nav a[href="/tension-check/"],
body[data-page="about"] .nav a[href="/about/"] { border-bottom-color: var(--accent); }
.hamb { display: none; }

@media (max-width: 860px) {
  .hamb {
    display: inline-flex; flex-direction: column; gap: 5px; padding: .55rem;
    background: none; border: 2px solid var(--ink); border-radius: 3px; cursor: pointer;
  }
  .hamb span { display: block; width: 22px; height: 2.5px; background: var(--ink); transition: .2s; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(80vw, 320px);
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--primary-deep); padding: 5rem 1.2rem 2rem;
    transform: translateX(100%); transition: transform .25s ease; box-shadow: -20px 0 60px -20px #000;
  }
  .nav a { color: #fff; padding: .95rem .4rem; border-bottom: 1px solid color-mix(in oklab, #fff 12%, transparent); }
  .nav a:hover { background: color-mix(in oklab, #fff 8%, transparent); }
  .nav a.cta { margin: .8rem 0 0; justify-content: center; border-radius: 3px; }
  .nav-toggle:checked ~ .nav { transform: translateX(0); }
  .nav-toggle:checked ~ .hamb span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle:checked ~ .hamb span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .hamb span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
}

/* ---------- hero ---------- */
.hero { position: relative; background: var(--primary-deep); color: #fff; overflow: hidden; }
.hero__img { position: absolute; inset: 0; }
.hero__img img { width: 100%; height: 100%; object-fit: cover; opacity: .34; filter: grayscale(.2) contrast(1.05); }
.hero::after { /* forge glow lower-right */
  content: ""; position: absolute; right: -10%; bottom: -30%; width: 60%; height: 90%;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 42%, transparent), transparent 62%);
  pointer-events: none;
}
.hero .wrap { position: relative; padding-block: clamp(3.2rem, 9vw, 6.2rem); }
.hero__inner { max-width: 40rem; }
.hero h1 { color: #fff; }
.hero h1 .hl { color: var(--highlight); }
.hero__lead { color: color-mix(in oklab, #fff 82%, transparent); font-size: clamp(1.12rem, 2.2vw, 1.4rem); max-width: 44ch; }
.hero__forge { color: oklch(72% 0.16 26); } /* hot-forge red LIFTED for the dark hero — the token red reads 2.3:1 on coal, this passes AA */

/* horizontal panel-seam divider */
.seam { height: 0; border: 0; border-top: 2px solid var(--line-strong); }
.seam--onDark { border-top-color: color-mix(in oklab, #fff 16%, transparent); }

/* dark section */
.dark { background: var(--primary); color: #fff; }
.dark h2, .dark h3 { color: #fff; }
.dark p { color: color-mix(in oklab, #fff 80%, transparent); }
.deep { background: var(--primary-deep); color: #fff; }
.deep h2, .deep h3 { color: #fff; }
.deep p { color: color-mix(in oklab, #fff 80%, transparent); }
/* light cards nested inside a dark band keep their own ink (the dark-h3 cascade
   otherwise paints white headings onto paper cards — invisible text) */
.dark .card h3, .deep .card h3 { color: var(--ink); }
.dark .card p, .deep .card p { color: var(--ink-soft); }

/* textured section grounds */
.tex-steel { background-image: url(/brand/textures/pattern-rolled-steel.png); background-size: 760px; }
.tex-coil { background-image: url(/brand/textures/pattern-coil-arcs.png); background-size: 620px; }

/* ---------- split path (repair vs new door) ---------- */
.paths { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--ink); border: 2px solid var(--ink); border-radius: var(--radius); overflow: hidden; }
.path { padding: clamp(1.5rem, 3vw, 2.4rem); background: var(--paper); display: flex; flex-direction: column; }
.path--urgent { background: var(--primary-deep); color: #fff; }
.path--urgent h3, .path--urgent p { color: #fff; }
.path__tag { font-weight: 700; text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; color: var(--ink-soft); margin-bottom: .5rem; }
.path--urgent .path__tag { color: oklch(72% 0.16 26); } /* lifted forge red — token --accent is 2.3:1 on the dark band */
.path ul { list-style: none; margin: .3rem 0 1.4rem; padding: 0; }
.path li { padding: .35rem 0 .35rem 1.4rem; position: relative; }
.path li::before { content: ""; position: absolute; left: 0; top: .95em; width: 12px; height: 2px; background: var(--accent); }
.path .btn { margin-top: auto; }
@media (max-width: 720px){ .paths { grid-template-columns: 1fr; } }

/* ---------- cards / grids ---------- */
.grid { display: grid; gap: 1.2rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px){ .grid--3, .grid--4 { grid-template-columns: repeat(2,1fr);} }
@media (max-width: 560px){ .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr;} }

.card { background: var(--paper); border: 2px solid var(--line-strong); border-radius: var(--radius);
  padding: 1.3rem; transition: border-color .15s ease, transform .12s ease; }
.card--raised { background: var(--paper-raised); }
a.card { text-decoration: none; color: inherit; display: block; }
a.card:hover { border-color: var(--ink); transform: translateY(-2px); }
.card h3 { margin-bottom: .35rem; }
.card p { margin: 0; color: var(--ink-soft); font-size: .98rem; }
.card__icon { width: 52px; height: 52px; margin-bottom: .7rem; }
.card__more { font-weight: 700; text-transform: uppercase; letter-spacing: .05em; font-size: .82rem; color: var(--accent-deep); margin-top: .8rem; display: inline-flex; gap: .35rem; }

/* service list — spec-sheet style */
.spec-list { border-top: 2px solid var(--ink); }
.spec-list .row { display: grid; grid-template-columns: 3rem 1fr auto; gap: 1rem; align-items: baseline;
  padding: 1.1rem .2rem; border-bottom: 1px solid var(--line); }
.spec-list .row .n { font-family: var(--font-display); color: var(--highlight); font-size: 1.1rem; }
.spec-list .row h3 { margin: 0; font-size: 1.15rem; }
.spec-list .row p { margin: .2rem 0 0; color: var(--ink-soft); font-size: .98rem; }
.spec-list .row .tag { font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-soft); align-self: center; white-space: nowrap; }
.spec-list .row .tag.urgent { color: var(--accent); }
@media (max-width: 620px){ .spec-list .row { grid-template-columns: 2rem 1fr; } .spec-list .row .tag { grid-column: 2; } }

/* ---------- gradient bar (salt to bush) ---------- */
.gradient-bar { display: grid; grid-template-columns: repeat(3, 1fr); border: 2px solid var(--ink); border-radius: var(--radius); overflow: hidden; }
.gradient-bar .band { padding: 1.4rem; border-right: 2px solid var(--ink); }
.gradient-bar .band:last-child { border-right: 0; }
.band--salt { background: color-mix(in oklab, var(--highlight) 38%, var(--paper)); }
.band--ring { background: var(--paper-raised); }
.band--bush { background: color-mix(in oklab, var(--success) 16%, var(--paper)); }
.band h3 { font-size: 1.1rem; }
.band .where { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-soft); }
.band p { font-size: .95rem; color: var(--ink-soft); margin-bottom: 0; }
@media (max-width: 720px){ .gradient-bar { grid-template-columns: 1fr; } .gradient-bar .band { border-right: 0; border-bottom: 2px solid var(--ink);} .gradient-bar .band:last-child{border-bottom:0;} }

/* ---------- data / stat strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; border: 2px solid color-mix(in oklab,#fff 18%,transparent); border-radius: var(--radius); }
.stats .stat { padding: 1.2rem 1.3rem; border-right: 2px solid color-mix(in oklab,#fff 12%,transparent); }
.stats .stat:last-child { border-right: 0; }
.stats .stat b { font-family: var(--font-display); font-size: 1.8rem; color: #fff; display: block; line-height: 1; }
.stats .stat span { font-size: .86rem; color: color-mix(in oklab,#fff 66%,transparent); }
@media (max-width: 720px){ .stats { grid-template-columns: 1fr 1fr; } .stats .stat:nth-child(2){border-right:0;} .stats .stat:nth-child(1),.stats .stat:nth-child(2){border-bottom:2px solid color-mix(in oklab,#fff 12%,transparent);} }

/* ---------- feature media ---------- */
.media { border: 2px solid var(--ink); border-radius: var(--radius); overflow: hidden; }
.media img { width: 100%; height: 100%; object-fit: cover; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.split--media img { aspect-ratio: 4/3; }
@media (max-width: 840px){ .split { grid-template-columns: 1fr; } .split .order-first { order: -1; } }

/* caption */
figure { margin: 0; }
figcaption { font-size: .8rem; color: var(--ink-soft); padding-top: .5rem; }

/* ---------- prose (guides / legal) ---------- */
.prose { max-width: 44rem; }
.prose h2 { margin-top: 2.4rem; }
.prose h3 { margin-top: 1.8rem; }
.prose ul, .prose ol { padding-left: 1.2rem; }
.prose li { margin-bottom: .5rem; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: .95rem; }
.prose th, .prose td { text-align: left; padding: .7rem .8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose thead th { border-bottom: 2px solid var(--ink); font-family: var(--font-body); text-transform: uppercase; letter-spacing: .06em; font-size: .82rem; }
.prose tbody tr:hover { background: color-mix(in oklab, var(--ink) 3%, transparent); }
.prose blockquote { border-left: 3px solid var(--accent); margin: 1.4rem 0; padding: .3rem 0 .3rem 1.2rem; color: var(--ink-soft); }
.callout { border: 2px solid var(--line-strong); border-left: 4px solid var(--accent); background: var(--paper-raised);
  border-radius: var(--radius); padding: 1.1rem 1.3rem; margin: 1.6rem 0; }
.callout strong { display: block; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; color: var(--accent-deep); margin-bottom: .3rem; }
.refs { font-size: .9rem; color: var(--ink-soft); }
.refs li { margin-bottom: .6rem; }

/* pill row */
.pills { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.pill { font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: .3rem .7rem;
  border: 1.5px solid var(--line-strong); border-radius: 100px; color: var(--ink-soft); }

/* ---------- suburb factbar ---------- */
.factbar { display: grid; grid-template-columns: repeat(4,1fr); border: 2px solid var(--ink); border-radius: var(--radius); background: var(--paper-raised); }
.factbar .f { padding: 1rem 1.2rem; border-right: 1px solid var(--line-strong); }
.factbar .f:last-child { border-right: 0; }
.factbar .f b { font-family: var(--font-display); font-size: 1.4rem; display: block; line-height: 1; }
.factbar .f span { font-size: .82rem; color: var(--ink-soft); }
@media (max-width: 640px){ .factbar { grid-template-columns: 1fr 1fr; } .factbar .f:nth-child(2){border-right:0;} .factbar .f:nth-child(-n+2){border-bottom:1px solid var(--line-strong);} }

/* ---------- enquiry cta band ---------- */
.cta-band { position: relative; overflow: hidden; }
.cta-band::after { content:""; position:absolute; left:-8%; top:-40%; width:45%; height:120%;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 30%, transparent), transparent 60%); pointer-events:none; }
.cta-band .wrap { position: relative; }

/* ---------- form ---------- */
.form-card { background: var(--paper); border: 2px solid var(--ink); border-radius: var(--radius); padding: clamp(1.3rem, 3vw, 2rem); box-shadow: var(--shadow); }
.field { margin-bottom: 1.05rem; }
.field label { display: block; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; font-size: .78rem; margin-bottom: .35rem; color: var(--ink); }
.field .req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--ink);
  padding: .8rem .85rem; background: #fff; border: 2px solid var(--line-strong); border-radius: var(--radius);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--ink); outline: none; box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 22%, transparent); }
.field textarea { min-height: 120px; resize: vertical; }
.field .hint { font-size: .82rem; color: var(--ink-soft); margin-top: .3rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px){ .two-col { grid-template-columns: 1fr; } }
.form-msg { padding: 1rem 1.1rem; border-radius: var(--radius); margin-bottom: 1rem; font-weight: 700; }
.form-msg--ok { background: color-mix(in oklab, var(--success) 18%, var(--paper)); border: 2px solid var(--success); color: var(--ink); }
.form-msg--err { background: color-mix(in oklab, var(--accent) 14%, var(--paper)); border: 2px solid var(--accent); color: var(--accent-deep); }

/* ---------- footer ---------- */
.site-foot { background: var(--primary-deep); color: color-mix(in oklab,#fff 72%,transparent); }
.site-foot .wrap { padding-block: clamp(2.6rem, 5vw, 4rem); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.site-foot img.flogo { height: 76px; width: auto; margin-bottom: 1.1rem; }
.site-foot h4 { font-family: var(--font-body); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .82rem; color: #fff; margin: 0 0 .8rem; }
.site-foot a { color: color-mix(in oklab,#fff 72%,transparent); text-decoration: none; display: block; padding: .22rem 0; }
.site-foot a:hover { color: #fff; }
.foot-blurb { font-size: .95rem; max-width: 32ch; }
.foot-legal { border-top: 1px solid color-mix(in oklab,#fff 12%,transparent); margin-top: 2.4rem; padding-top: 1.4rem; font-size: .82rem; color: color-mix(in oklab,#fff 52%,transparent); }
.foot-legal p { margin: 0 0 .5rem; }
@media (max-width: 820px){ .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px){ .foot-grid { grid-template-columns: 1fr; } }

/* ---------- misc ---------- */
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.muted { color: var(--ink-soft); }
.hl-red { color: var(--accent); }
.nowrap { white-space: nowrap; }
.badge-note { display: inline-block; font-size: .8rem; color: var(--ink-soft); border: 1px dashed var(--line-strong); border-radius: 3px; padding: .2rem .5rem; }
@media (prefers-reduced-motion: reduce){ *{ animation: none !important; transition: none !important; scroll-behavior: auto; } }

/* ============================================================================
   TENSION CHECK — the signature tool
   ========================================================================== */
.tc { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(1.4rem, 3vw, 2.6rem); align-items: start; }
@media (max-width: 900px){ .tc { grid-template-columns: 1fr; } }

.tc-stage { position: sticky; top: 90px; background: var(--primary-deep); border: 2px solid var(--ink);
  border-radius: var(--radius); padding: 1.2rem; }
@media (max-width: 900px){ .tc-stage { position: static; } }
.tc-stage svg { width: 100%; height: auto; display: block; }
.tc-diagram .part { stroke: var(--highlight); }
.tc-diagram .part text { fill: color-mix(in oklab,#fff 55%,transparent); stroke: none; font-family: var(--font-body); font-size: 15px; font-weight: 700; letter-spacing: .04em; }
.tc-diagram .part.on { stroke: var(--accent); filter: drop-shadow(0 0 6px color-mix(in oklab,var(--accent) 85%,transparent)); }
.tc-diagram .part.on text { fill: #fff; }
.tc-diagram .fill { fill: color-mix(in oklab,#fff 8%,transparent); stroke: var(--highlight); }
.tc-diagram .part.on .fill { fill: color-mix(in oklab,var(--accent) 22%,transparent); stroke: var(--accent); }
.tc-diagram .dim { stroke: color-mix(in oklab,#fff 22%,transparent); }
.tc-stage__cap { color: color-mix(in oklab,#fff 60%,transparent); font-size: .85rem; margin: .7rem 0 0; text-align: center; }

.tc-steps { display: flex; gap: .4rem; margin-bottom: 1.2rem; }
.tc-steps .s { flex: 1; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-soft); padding: .5rem .3rem; border-top: 3px solid var(--line-strong); text-align: center; }
.tc-steps .s.active { color: var(--ink); border-top-color: var(--accent); }
.tc-steps .s .num { font-family: var(--font-display); display: block; font-size: 1.05rem; color: var(--highlight); }
.tc-steps .s.active .num { color: var(--accent); }

.tc-panel h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
.tc-options { display: grid; gap: .7rem; margin: 1.2rem 0; }
.tc-opt { display: flex; gap: .9rem; align-items: flex-start; text-align: left; width: 100%;
  background: var(--paper); border: 2px solid var(--line-strong); border-radius: var(--radius);
  padding: .95rem 1.1rem; cursor: pointer; font: inherit; color: var(--ink); transition: border-color .12s, transform .1s, background .12s; }
.tc-opt:hover { border-color: var(--ink); transform: translateX(2px); }
.tc-opt:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.tc-opt .k { font-family: var(--font-display); color: var(--highlight); font-size: 1rem; line-height: 1.3; min-width: 1.4rem; }
.tc-opt .t { font-weight: 700; }
.tc-opt.selected { border-color: var(--accent); background: color-mix(in oklab,var(--accent) 8%,var(--paper)); }

.tc-back { background: none; border: 0; font: inherit; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  font-size: .82rem; color: var(--ink-soft); cursor: pointer; padding: .3rem 0; }
.tc-back:hover { color: var(--ink); }

.tc-result { border: 2px solid var(--ink); border-radius: var(--radius); overflow: hidden; }
.tc-result__head { background: var(--primary-deep); color: #fff; padding: 1.1rem 1.3rem; }
.tc-result__head .cause-tag { font-size: .74rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.tc-result__head h3 { color: #fff; margin: .25rem 0 0; }
.tc-result__body { padding: 1.3rem; background: var(--paper); }
.tc-result__body p { color: var(--ink-soft); }
.tc-result__body .plain { color: var(--ink); font-size: 1.05rem; }
.tc-safety { border: 2px solid var(--line-strong); border-left: 4px solid var(--accent); background: var(--paper-raised);
  border-radius: var(--radius); padding: .9rem 1.1rem; margin: 1.1rem 0; }
.tc-safety strong { display: block; text-transform: uppercase; letter-spacing: .08em; font-size: .76rem; color: var(--accent-deep); margin-bottom: .25rem; }
.tc-overlay { border-top: 1px dashed var(--line-strong); margin-top: 1rem; padding-top: 1rem; font-size: .96rem; }
.tc-overlay b { color: var(--ink); }
.tc-disclaimer { font-size: .82rem; color: var(--ink-soft); margin-top: 1rem; }
.tc-hidden { display: none !important; }

/* horizontally-scrollable figure (wide diagrams on small screens) */
.figure-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 2px solid var(--ink); border-radius: var(--radius); background: var(--primary-deep); }
.figure-scroll svg { display: block; min-width: 640px; width: 100%; height: auto; }
.xsection text { font-family: var(--font-body); }

/* wide content tables scroll horizontally on narrow screens instead of overflowing the page */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 1.4rem 0; }
.table-scroll table { margin: 0; min-width: 560px; }

/* roving focus lands on the panel heading for keyboard users; don't show a box on click-driven focus */
#tc-step-1 h2:focus, #tc-step-2 h2:focus, #tc-result h3:focus { outline: none; }