/* =========================================================================
   Gold Calculator UK — Design System
   Vanilla CSS. Mobile-first. AA contrast. No build step.
   ========================================================================= */

/* ---- Design tokens ---------------------------------------------------- */
:root {
  /* Brand palette — trustworthy finance: deep ink navy + assay gold */
  --ink:        #0f1724;
  --ink-2:      #1b2436;
  --ink-3:      #2a3550;
  --paper:      #ffffff;
  --paper-2:    #f6f7fb;
  --paper-3:    #eceef5;
  --line:       #d9dce6;
  --line-2:     #c3c8d6;

  --gold:       #c8a24a;
  --gold-deep:  #a4812f;
  --gold-soft:  #f3ead2;

  --text:       #16202f;
  --text-2:     #4a5568;
  --text-3:     #6b7688;
  --text-inv:   #eef1f7;

  --green:      #1f8a4c;
  --green-soft: #e4f4ea;
  --red:        #b4402c;
  --red-soft:   #f8e7e3;
  --amber:      #9a6b12;
  --amber-soft: #fbf1da;

  /* Metal accents (used per-calculator theming) */
  --metal:      var(--gold);
  --metal-deep: var(--gold-deep);
  --metal-soft: var(--gold-soft);

  --radius:     14px;
  --radius-sm:  9px;
  --radius-lg:  22px;
  --shadow-sm:  0 1px 2px rgba(15,23,36,.06), 0 1px 3px rgba(15,23,36,.08);
  --shadow:     0 4px 14px rgba(15,23,36,.08), 0 2px 6px rgba(15,23,36,.06);
  --shadow-lg:  0 18px 50px rgba(15,23,36,.16);

  --maxw:       1140px;
  --gap:        clamp(16px, 3vw, 28px);

  --font-head:  "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body:  "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Per-metal theming hooks (added as class on <body>) */
body.metal-silver   { --metal:#7d8798; --metal-deep:#5b6472; --metal-soft:#eceef2; }
body.metal-platinum { --metal:#5f7f96; --metal-deep:#3f5666; --metal-soft:#e7edf1; }
body.metal-palladium{ --metal:#6d8f86; --metal-deep:#456158; --metal-soft:#e7efec; }

/* ---- Reset / base ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--paper-2);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1,h2,h3,h4 { font-family: var(--font-head); line-height: 1.15; color: var(--ink); font-weight: 700; margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.45rem); }
p  { margin: 0 0 1em; color: var(--text-2); }
a  { color: var(--metal-deep); text-decoration-color: color-mix(in srgb, var(--metal-deep) 40%, transparent); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
img { max-width: 100%; height: auto; display: block; }
strong { color: var(--text); }
small { font-size: .82rem; }
ul, ol { color: var(--text-2); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

/* ---- Layout ----------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.section { padding-block: clamp(36px, 6vw, 68px); }
.grid { display: grid; gap: var(--gap); }
.stack > * + * { margin-top: 1rem; }
.center { text-align: center; }
.muted { color: var(--text-3); }
.eyebrow {
  font-family: var(--font-body); font-weight: 700; text-transform: uppercase;
  letter-spacing: .12em; font-size: .74rem; color: var(--metal-deep); margin: 0 0 .6em;
}

/* Skip link */
.skip {
  position: absolute; left: -999px; top: 0; z-index: 1000;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; }

/* ---- Header / nav ----------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 18px; min-height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--gold), var(--gold-deep)); color: #1a1206;
  font-weight: 900; font-family: var(--font-body); box-shadow: var(--shadow-sm); flex: none;
}
.brand small { display:block; font-family:var(--font-body); font-style:normal; font-weight:700; font-size:.74rem; letter-spacing:.12em; text-transform:uppercase; color:var(--metal-deep); margin-top:2px; }
.nav-spacer { flex: 1; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  color: var(--text-2); text-decoration: none; font-weight: 600; font-size: .92rem;
  padding: 8px 11px; border-radius: 9px;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); background: var(--paper-3); }
.nav-toggle { display: none; }

/* Dropdown */
.has-menu { position: relative; }
.has-menu > .menu {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 210px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg); padding: 6px; display: none; flex-direction: column;
}
.has-menu:hover > .menu, .has-menu:focus-within > .menu { display: flex; }
.menu a { padding: 9px 12px; border-radius: 8px; font-size: .9rem; white-space: nowrap; }

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex; margin-left: auto; background: var(--paper); border: 1px solid var(--line);
    border-radius: 10px; width: 44px; height: 40px; align-items: center; justify-content: center; cursor: pointer;
  }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
    content:""; display:block; width:20px; height:2px; background:var(--ink); position:relative; transition:.2s;
  }
  .nav-toggle span::before { position:absolute; top:-6px; content:""; }
  .nav-toggle span::after  { position:absolute; top: 6px; content:""; }
  .nav-links {
    display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column;
    align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 10px clamp(16px,4vw,32px) 18px; box-shadow: var(--shadow); gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 12px; font-size: 1rem; }
  .has-menu > .menu { position: static; display: flex; box-shadow: none; border: 0; padding: 0 0 0 12px; min-width: 0; }
  .has-menu > .menu a { padding: 9px 12px; }
  .has-menu > .nav-parent::after { content: " ▾"; color: var(--text-3); }
}

/* ---- Buttons ---------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 700; font-size: .95rem;
  padding: 12px 20px; border-radius: 11px; border: 1px solid transparent;
  cursor: pointer; text-decoration: none; transition: transform .06s ease, box-shadow .2s, background .2s;
  line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(150deg, var(--gold), var(--gold-deep)); color: #1a1206; box-shadow: var(--shadow-sm); }
.btn-primary:hover { color:#1a1206; box-shadow: var(--shadow); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--ink-2); color:#fff; }
.btn-ghost { background: var(--paper); color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--paper-3); color: var(--ink); }
.btn-sm { padding: 8px 13px; font-size: .85rem; border-radius: 9px; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--metal) 55%, #4a90d9); outline-offset: 2px;
}

/* ---- Cards ------------------------------------------------------------ */
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: clamp(18px, 3vw, 28px);
}
.card-lg { border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.card h2, .card h3 { margin-top: 0; }

/* Badges / pills */
.pill { display:inline-flex; align-items:center; gap:6px; font-size:.76rem; font-weight:700; letter-spacing:.02em;
  padding: 4px 10px; border-radius: 999px; background: var(--paper-3); color: var(--text-2); }
.pill.live   { background: var(--green-soft); color: var(--green); }
.pill.stale  { background: var(--amber-soft); color: var(--amber); }
.dot { width:8px; height:8px; border-radius:50%; background: currentColor; }
.pill.live .dot { animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

/* ---- Hero ------------------------------------------------------------- */
.hero { background:
    radial-gradient(1200px 400px at 80% -10%, color-mix(in srgb, var(--metal) 22%, transparent), transparent),
    linear-gradient(180deg, var(--paper), var(--paper-2));
  border-bottom: 1px solid var(--line); }
.hero .wrap { padding-block: clamp(28px, 5vw, 52px); }
.hero-grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.05fr 1.2fr; align-items: start; } }
.hero h1 span.hl { color: var(--metal-deep); }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--text-2); max-width: 46ch; }
.trust-row { display:flex; flex-wrap:wrap; gap: 10px 18px; margin-top: 18px; }
.trust-row .t { display:flex; align-items:center; gap:8px; font-size:.86rem; color: var(--text-2); font-weight:600; }
.trust-row .t svg { color: var(--metal-deep); flex:none; }

/* ---- Calculator ------------------------------------------------------- */
.calc { display: grid; gap: var(--gap); }
.field { display: grid; gap: 6px; }
.field label { font-weight: 700; font-size: .9rem; color: var(--text); }
.field .hint { font-size: .78rem; color: var(--text-3); font-weight: 500; }
.control, input[type="text"], input[type="number"], input[type="email"], select, textarea {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--text);
  background: var(--paper); border: 1.5px solid var(--line-2); border-radius: 11px;
  padding: 12px 13px; transition: border-color .15s, box-shadow .15s;
}
.control:focus, input:focus, select:focus, textarea:focus {
  border-color: var(--metal); box-shadow: 0 0 0 3px color-mix(in srgb, var(--metal) 22%, transparent); outline: none;
}
select { appearance: none; background-image:
  linear-gradient(45deg, transparent 50%, var(--text-3) 50%),
  linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 34px; }
.row-2 { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 520px) { .row-2 { grid-template-columns: 1fr 1fr; } }
.row-3 { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 620px) { .row-3 { grid-template-columns: 1.4fr 1fr 1fr; } }

/* Live 2h / 24h change line under the spot price */
.price-change { font-weight:700; font-size:.9rem; margin-top:5px; font-variant-numeric:tabular-nums; display:flex; flex-wrap:wrap; gap:3px 9px; align-items:center; }
.price-change .dc.up { color:var(--green); } .price-change .dc.down { color:var(--red); }
.price-change .dc-amt { color:var(--text-3); font-weight:500; font-size:.85em; }
.price-change .dc-lab { color:var(--text-3); font-weight:600; font-size:.82em; text-transform:uppercase; letter-spacing:.03em; }
.price-change .dc-sep { color:var(--line-2); }

/* 2h / 24h / 7d change chips (history pages) */
.change-chips { display:flex; flex-wrap:wrap; gap:8px; margin:0 0 4px; }
.change-chips .chip { display:inline-flex; align-items:baseline; gap:6px; font-size:.84rem; font-weight:800; padding:6px 12px; border-radius:999px; border:1px solid var(--line); background:var(--paper); font-variant-numeric:tabular-nums; }
.change-chips .chip .lab { color:var(--text-3); font-weight:700; font-size:.76rem; text-transform:uppercase; letter-spacing:.04em; }
.change-chips .chip.up { color:var(--green); border-color:color-mix(in srgb,var(--green) 30%,transparent); background:var(--green-soft); }
.change-chips .chip.down { color:var(--red); border-color:color-mix(in srgb,var(--red) 30%,transparent); background:var(--red-soft); }

/* Two-column calculator layout on wider screens */
.calc-layout { display: grid; gap: var(--gap); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .calc-layout { grid-template-columns: 1.15fr 1fr; } }

/* Result panel */
.result {
  background: linear-gradient(165deg, var(--ink), var(--ink-2)); color: var(--text-inv);
  border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 30px); box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.result::after { content:""; position:absolute; inset:0; background:
  radial-gradient(600px 200px at 90% -20%, color-mix(in srgb, var(--metal) 30%, transparent), transparent); pointer-events:none; }
.result .r-label { font-size:.8rem; text-transform:uppercase; letter-spacing:.1em; color: color-mix(in srgb, var(--text-inv) 68%, transparent); font-weight:700; }
.result .r-headline { font-family: var(--font-head); font-size: clamp(2.2rem, 6vw, 3.2rem); font-weight: 800; color:#fff; line-height:1; margin:.15em 0 .1em; }
.result .r-headline .cur { font-size: .55em; vertical-align: 6%; color: color-mix(in srgb, var(--metal) 80%, #fff); margin-right:.06em; }
.result .r-sub { color: color-mix(in srgb, var(--text-inv) 78%, transparent); font-size:.95rem; }
.result .melt-line { display:flex; justify-content:space-between; align-items:baseline; gap:12px; margin-top:16px; padding-top:16px; border-top:1px solid rgba(255,255,255,.14); }
.result .melt-line .v { font-weight:700; color:#fff; font-variant-numeric: tabular-nums; }
.result a { color: color-mix(in srgb, var(--metal) 85%, #fff); }

/* Payout slider */
.payout { display:grid; gap:12px; }
.payout .presets { display:flex; flex-wrap:wrap; gap:8px; }
.preset {
  border:1.5px solid var(--line-2); background:var(--paper); color:var(--text-2);
  padding:7px 12px; border-radius:999px; font-weight:600; font-size:.82rem; cursor:pointer; transition:.15s;
}
.preset:hover { border-color: var(--metal); color: var(--ink); }
.preset[aria-pressed="true"] { background: var(--metal-soft); border-color: var(--metal); color: var(--metal-deep); }
input[type="range"] { -webkit-appearance:none; appearance:none; width:100%; height:8px; border-radius:999px;
  background: linear-gradient(90deg, var(--metal) 0 var(--val,80%), var(--paper-3) var(--val,80%) 100%); cursor:pointer; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance:none; width:24px; height:24px; border-radius:50%;
  background:#fff; border:3px solid var(--metal-deep); box-shadow: var(--shadow-sm); cursor:grab; margin-top:-1px; }
input[type="range"]::-moz-range-thumb { width:22px; height:22px; border-radius:50%; background:#fff; border:3px solid var(--metal-deep); cursor:grab; }
.payout .val-badge { font-weight:800; font-variant-numeric:tabular-nums; color: var(--metal-deep); }

/* Dealer spread bar */
.spread { margin-top: 4px; }
.spread .bar { display:flex; height:44px; border-radius:11px; overflow:hidden; border:1px solid var(--line); box-shadow: var(--shadow-sm) inset; }
.spread .seg { display:flex; align-items:center; justify-content:center; font-weight:700; font-size:.82rem; color:#fff; min-width:0; white-space:nowrap; transition: flex-basis .35s ease; }
.spread .seg.you   { background: linear-gradient(150deg, var(--green), #14663a); }
.spread .seg.dealer{ background: linear-gradient(150deg, #7a8398, #596178); }
.spread .legend { display:flex; flex-wrap:wrap; justify-content:space-between; gap:6px 16px; font-size:.82rem; color:var(--text-2); margin-top:10px; }
.spread .legend .li { display:flex; align-items:center; gap:7px; }
.spread .legend b { color: var(--text); font-variant-numeric: tabular-nums; }
.spread .legend .swatch { width:12px; height:12px; border-radius:3px; flex:none; }
.spread .legend .swatch.you { background: linear-gradient(150deg, var(--green), #14663a); }
.spread .legend .swatch.dealer { background: linear-gradient(150deg, #7a8398, #596178); }

/* Multi-item table */
.items { display:grid; gap:10px; }
.item-row { display:grid; gap:8px; grid-template-columns: 1fr; padding:12px; border:1px solid var(--line); border-radius:12px; background: var(--paper-2); position:relative; }
@media (min-width:640px){ .item-row { grid-template-columns: 1.3fr 1fr 1fr auto; align-items:end; } }
.item-row .del { background:var(--red-soft); color:var(--red); border:1px solid color-mix(in srgb,var(--red) 25%,transparent); border-radius:9px; width:40px; height:44px; cursor:pointer; font-size:1.1rem; display:grid; place-items:center; }
.item-row .del:hover { background: var(--red); color:#fff; }
.item-sub { font-size:.8rem; color:var(--text-3); font-variant-numeric:tabular-nums; }

/* Data table */
.table-wrap { overflow-x:auto; border:1px solid var(--line); border-radius:12px; }
table.data { width:100%; border-collapse:collapse; font-size:.92rem; min-width: 440px; }
table.data th, table.data td { padding:11px 14px; text-align:left; border-bottom:1px solid var(--line); }
table.data th { background: var(--paper-2); font-weight:700; color:var(--text); font-size:.82rem; text-transform:uppercase; letter-spacing:.03em; }
table.data td.num, table.data th.num { text-align:right; font-variant-numeric: tabular-nums; }
table.data tr:last-child td { border-bottom:0; }
table.data tbody tr:hover { background: var(--paper-2); }

/* CGT / callouts */
.callout { border-left:4px solid var(--metal); background: var(--metal-soft); border-radius: 0 12px 12px 0; padding:14px 16px; font-size:.92rem; color: var(--text); }
.callout.warn { border-color: var(--amber); background: var(--amber-soft); }
.callout.info { border-color: #4a7fb0; background:#e8f1f9; }
.callout .h { font-weight:800; display:block; margin-bottom:3px; }

/* Disclaimer strip */
.disclaimer-strip { background: var(--amber-soft); border:1px solid color-mix(in srgb,var(--amber) 30%,transparent); border-radius:12px; padding:12px 15px; font-size:.86rem; color:#5c4410; display:flex; gap:10px; align-items:flex-start; }
.disclaimer-strip svg { flex:none; color: var(--amber); margin-top:2px; }

/* ---- Ad slots --------------------------------------------------------- */
.ad-slot {
  margin: 22px auto; max-width: 100%; display:flex; flex-direction:column; align-items:center; justify-content:center;
  background: repeating-linear-gradient(45deg, var(--paper-2), var(--paper-2) 10px, var(--paper-3) 10px, var(--paper-3) 20px);
  border: 1px dashed var(--line-2); border-radius: 10px; color: var(--text-3); text-align:center;
}
.ad-slot .ad-tag { font-size:.68rem; text-transform:uppercase; letter-spacing:.14em; font-weight:700; color:var(--text-3); }
.ad-leaderboard { min-height: 90px; width: 100%; max-width: 728px; }
.ad-rect { min-height: 250px; width: 300px; max-width: 100%; }
.ad-inline { min-height: 100px; width: 100%; }

/* ---- Feature blocks --------------------------------------------------- */
.usp-grid { display:grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
.usp { padding: 20px; border-radius: var(--radius); background: var(--paper); border:1px solid var(--line); box-shadow: var(--shadow-sm); }
.usp .ic { width:42px; height:42px; border-radius:11px; background: var(--metal-soft); color: var(--metal-deep); display:grid; place-items:center; margin-bottom:12px; }
.usp h3 { font-size:1.1rem; margin-bottom:.35em; }
.usp p { font-size:.92rem; margin:0; }

/* ---- Charts ----------------------------------------------------------- */
.chart-card { background:var(--paper); border:1px solid var(--line); border-radius:var(--radius-lg); box-shadow:var(--shadow); padding: clamp(16px,3vw,26px); }
.chart-head { display:flex; flex-wrap:wrap; gap:12px; align-items:center; justify-content:space-between; margin-bottom:16px; }
.chart-stats { display:flex; flex-wrap:wrap; gap: 18px; }
.chart-stat .k { font-size:.72rem; text-transform:uppercase; letter-spacing:.08em; color:var(--text-3); font-weight:700; }
.chart-stat .v { font-family:var(--font-head); font-size:1.5rem; color:var(--ink); font-variant-numeric:tabular-nums; }
.chart-stat .v.up { color: var(--green); } .chart-stat .v.down { color: var(--red); }
.range-btns { display:flex; gap:6px; flex-wrap:wrap; }
.range-btns button { border:1.5px solid var(--line-2); background:var(--paper); color:var(--text-2); padding:6px 12px; border-radius:8px; font-weight:600; font-size:.82rem; cursor:pointer; }
.range-btns button[aria-pressed="true"] { background:var(--ink); color:#fff; border-color:var(--ink); }
/* Today / yesterday cards */
.ty-grid { display:grid; gap:14px; grid-template-columns:1fr; }
@media (min-width:640px){ .ty-grid { grid-template-columns:repeat(3,1fr); } }
.ty-card { background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-sm); padding:16px 18px; }
.ty-card .k { font-size:.74rem; text-transform:uppercase; letter-spacing:.08em; color:var(--text-3); font-weight:700; margin-bottom:4px; }
.ty-card .v { font-family:var(--font-head); font-size:clamp(1.5rem,4vw,2rem); color:var(--ink); font-variant-numeric:tabular-nums; line-height:1.05; }
.ty-card .chg { font-size:.84rem; font-weight:600; margin-top:6px; }
.ty-card .chg.up, .up { color:var(--green); } .ty-card .chg.down, .down { color:var(--red); }
table.data .up { color:var(--green); font-weight:600; } table.data .down { color:var(--red); font-weight:600; }
/* Today/yesterday mini trend sparkline */
.ty-chart-card { margin-top:14px; background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-sm); padding:14px 16px; }
.ty-chart-head { display:flex; align-items:baseline; justify-content:space-between; gap:10px; margin-bottom:8px; }
.ty-chart-label { font-size:.74rem; text-transform:uppercase; letter-spacing:.08em; color:var(--text-3); font-weight:700; }
.ty-chart-sub { font-size:.78rem; color:var(--text-3); }
.ty-chart { width:100%; }
.ty-chart svg.spark { width:100%; height:90px; display:block; }

.chart-svg-wrap { position:relative; width:100%; }
svg.linechart { width:100%; height:auto; display:block; overflow:visible; }
.chart-tip { position:absolute; pointer-events:none; background:var(--ink); color:#fff; padding:6px 9px; border-radius:8px; font-size:.78rem; font-weight:600; transform:translate(-50%,-140%); white-space:nowrap; opacity:0; transition:opacity .1s; box-shadow:var(--shadow); }

/* ---- Article / prose -------------------------------------------------- */
.prose { max-width: 72ch; }
.prose h2 { margin-top: 1.8em; }
.prose h3 { margin-top: 1.4em; }
.prose p, .prose li { color: var(--text-2); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: .4em; }
.prose blockquote { margin: 1.4em 0; padding: 12px 18px; border-left: 4px solid var(--metal); background: var(--paper); border-radius: 0 12px 12px 0; font-style: italic; color: var(--text); }
.prose code { background: var(--paper-3); padding: 2px 6px; border-radius: 6px; font-size: .9em; }
.meta-line { color: var(--text-3); font-size: .88rem; margin-bottom: 1.4em; }

/* FAQ */
.faq details { border:1px solid var(--line); border-radius:12px; background:var(--paper); margin-bottom:10px; overflow:hidden; }
.faq summary { padding:16px 18px; font-weight:700; cursor:pointer; list-style:none; display:flex; justify-content:space-between; gap:12px; align-items:center; color:var(--ink); }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content:"+"; font-size:1.4rem; color:var(--metal-deep); transition:.2s; font-weight:400; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details[open] summary { border-bottom:1px solid var(--line); }
.faq .faq-body { padding: 4px 18px 18px; color: var(--text-2); }

/* Post cards */
.post-grid { display:grid; gap:var(--gap); grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); }
.post-card { display:flex; flex-direction:column; background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-sm); transition:transform .12s, box-shadow .2s; text-decoration:none; }
.post-card:hover { transform:translateY(-3px); box-shadow:var(--shadow); }
.post-card .thumb { aspect-ratio: 16/9; background: linear-gradient(140deg, var(--ink), var(--ink-3)); position:relative; display:grid; place-items:center; }
.post-card .thumb .em { font-size:2.6rem; }
.post-card .body { padding:18px; display:flex; flex-direction:column; gap:8px; flex:1; }
.post-card .body h3 { margin:0; font-size:1.15rem; color:var(--ink); }
.post-card .body p { margin:0; font-size:.9rem; }
.post-card .body .tag { font-size:.72rem; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--metal-deep); }

/* ---- Footer ----------------------------------------------------------- */
.site-footer { background: var(--ink); color: var(--text-inv); margin-top: 48px; }
.site-footer a { color: color-mix(in srgb, var(--text-inv) 82%, transparent); text-decoration:none; }
.site-footer a:hover { color:#fff; }
.footer-grid { display:grid; gap: 28px; grid-template-columns: 1fr; padding-block: 44px; }
@media (min-width: 720px){ .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; } }
.footer-grid h4 { color:#fff; font-family:var(--font-body); font-size:.78rem; text-transform:uppercase; letter-spacing:.1em; margin-bottom:14px; }
.footer-grid ul { list-style:none; padding:0; margin:0; display:grid; gap:9px; }
.footer-grid .brand { color:#fff; }
.footer-grid .brand small { color: var(--text-3); }
.footer-note { font-size:.82rem; color: color-mix(in srgb, var(--text-inv) 60%, transparent); max-width: 46ch; margin-top:12px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.1); padding-block:18px; display:flex; flex-wrap:wrap; gap:10px 20px; justify-content:space-between; font-size:.82rem; color: color-mix(in srgb, var(--text-inv) 62%, transparent); }

/* ---- Cookie consent --------------------------------------------------- */
.cookie-banner {
  position: fixed; inset-inline: 12px; bottom: 12px; z-index: 200; max-width: 560px; margin-inline:auto;
  background: var(--paper); border: 1px solid var(--line-2); border-radius: 16px; box-shadow: var(--shadow-lg);
  padding: 18px 20px; display: none;
}
.cookie-banner.show { display: block; animation: slideup .35s ease; }
@keyframes slideup { from { transform: translateY(20px); opacity:0; } to { transform:none; opacity:1; } }
.cookie-banner h3 { font-size: 1.1rem; margin-bottom: .4em; }
.cookie-banner p { font-size: .88rem; margin-bottom: 14px; }
.cookie-actions { display:flex; flex-wrap:wrap; gap:10px; }
.cookie-actions .btn { flex:1 1 auto; }
.cookie-prefs { display:none; margin:12px 0 4px; border-top:1px solid var(--line); padding-top:12px; }
.cookie-prefs.show { display:block; }
.cookie-pref { display:flex; align-items:flex-start; gap:10px; padding:8px 0; }
.cookie-pref input { width:auto; margin-top:4px; }
.cookie-pref label { font-weight:700; font-size:.9rem; }
.cookie-pref .d { font-size:.8rem; color:var(--text-3); font-weight:400; }

/* Manage-cookies floating link */
.cookie-fab { position:fixed; left:12px; bottom:12px; z-index:150; background:var(--paper); border:1px solid var(--line); border-radius:999px; padding:7px 13px; font-size:.78rem; font-weight:600; color:var(--text-2); box-shadow:var(--shadow-sm); cursor:pointer; }
.cookie-fab:hover { color:var(--ink); }

/* ---- Utilities -------------------------------------------------------- */
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.mt-0{margin-top:0}.mb-0{margin-bottom:0}.tabnum{font-variant-numeric:tabular-nums}
.flex{display:flex}.wrap-f{flex-wrap:wrap}.gap-sm{gap:8px}.gap{gap:16px}.items-center{align-items:center}.between{justify-content:space-between}
.hide-sm{display:none} @media(min-width:640px){.hide-sm{display:revert}}
.badge-metal { display:inline-block; padding:3px 10px; border-radius:999px; background:var(--metal-soft); color:var(--metal-deep); font-weight:700; font-size:.78rem; }
.breadcrumb { font-size:.82rem; color:var(--text-3); margin-bottom:14px; }
.breadcrumb a { color:var(--text-3); text-decoration:none; } .breadcrumb a:hover{ color:var(--ink); }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior:auto; } }
