/* SizeLink — shared styles. Two full themes: volt (dark) + clipboard (light). */

:root, :root[data-theme="volt"] {
  --bg: #0d0d0f;
  --surface: #17171a;
  --surface2: #1f1f24;
  --text: #f2f2f0;
  --muted: #9a9aa2;
  --accent: #C8FF0B;
  --accent-ink: #0d0d0f;
  --border: #2b2b31;
  --danger: #ff5c5c;
  --ok: #6fe3a0;
  --radius: 4px;
  --shadow: none;
}
:root[data-theme="clipboard"] {
  --bg: #f4f4ef;
  --surface: #ffffff;
  --surface2: #eef0e9;
  --text: #17221e;
  --muted: #5c6660;
  --accent: #0e6b3f;
  --accent-ink: #ffffff;
  --border: #d7dad0;
  --danger: #b3261e;
  --ok: #0e6b3f;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(20,30,25,.08), 0 8px 24px rgba(20,30,25,.06);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
h1, h2, h3, .display {
  font-family: "Oswald", "Arial Narrow", system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: .01em;
  text-transform: uppercase;
  line-height: 1.15;
  margin: 0 0 .4em;
}
h1 { font-size: clamp(30px, 5.5vw, 52px); }
h2 { font-size: clamp(21px, 3.2vw, 28px); }
h3 { font-size: 17px; }
p { margin: 0 0 1em; }
a { color: inherit; }
small, .muted { color: var(--muted); }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 680px; }

/* header */
.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand .mark {
  font-family: "Oswald", sans-serif; font-weight: 700; font-size: 20px;
  text-transform: uppercase; letter-spacing: .02em;
}
.brand .mark b { color: var(--accent); }
:root[data-theme="clipboard"] .brand .mark b { color: var(--accent); }
.brand .by { font-size: 12px; color: var(--muted); }

.theme-flip {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  font: 12px "Inter", sans-serif; padding: 6px 10px; border-radius: 99px; cursor: pointer;
}

/* hero */
.hero { padding: 56px 0 30px; }
.hero .kicker {
  display: inline-block; font: 700 12px/1 "Inter", sans-serif; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
:root[data-theme="clipboard"] .hero .kicker { color: var(--accent); }
.hero h1 span { color: var(--accent); }
.hero .lead { font-size: 18px; max-width: 620px; color: var(--muted); }
.hero .facts { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 18px; font-size: 14px; color: var(--muted); }
.hero .facts b { color: var(--text); font-weight: 600; }

/* cards + forms */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow);
}
.card + .card { margin-top: 18px; }
label.f { display: block; font-weight: 600; font-size: 14px; margin: 18px 0 6px; }
label.f:first-child { margin-top: 0; }
label.f .opt { font-weight: 400; color: var(--muted); }
input[type=text], input[type=number], input[type=date], input[type=email], input[type=url], select, textarea {
  width: 100%; padding: 11px 12px; font: 15px "Inter", sans-serif;
  background: var(--surface2); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius); outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 70px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .row2 { grid-template-columns: 1fr; } }

/* chip pickers */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--border); background: var(--surface2); color: var(--text);
  padding: 9px 14px; border-radius: 99px; font: 500 14px "Inter", sans-serif; cursor: pointer;
  user-select: none;
}
.chip.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 700; }

/* toggle rows */
.tog { display: flex; align-items: center; gap: 10px; padding: 9px 0; font-size: 15px; cursor: pointer; }
.tog input { width: 18px; height: 18px; accent-color: var(--accent); }

/* buttons */
.btn {
  display: inline-block; border: 2px solid var(--accent); background: var(--accent); color: var(--accent-ink);
  font: 700 15px "Inter", sans-serif; text-transform: uppercase; letter-spacing: .05em;
  padding: 14px 26px; border-radius: var(--radius); cursor: pointer; text-decoration: none; text-align: center;
}
.btn:hover { filter: brightness(1.06); }
.btn.big { width: 100%; padding: 16px; font-size: 16px; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.ghost:hover { border-color: var(--accent); filter: none; }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.sm { padding: 8px 14px; font-size: 12px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* link boxes (share/admin) */
.linkbox { display: flex; gap: 8px; margin: 8px 0 4px; }
.linkbox input { flex: 1; font-family: ui-monospace, Consolas, monospace; font-size: 13px; }
.copied { color: var(--ok); font-size: 13px; font-weight: 600; }

/* tables */
table.grid { width: 100%; border-collapse: collapse; font-size: 14px; }
table.grid th, table.grid td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; }
table.grid th {
  font: 700 11px/1.2 "Inter", sans-serif; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted);
}
table.grid tr.dupe td { color: var(--danger); }
.scroll-x { overflow-x: auto; }

/* stat tiles */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin: 18px 0; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat .n { font-family: "Oswald", sans-serif; font-size: 30px; font-weight: 700; line-height: 1; }
.stat .l { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; margin-top: 5px; }

/* size totals pills */
.totals { display: flex; flex-wrap: wrap; gap: 6px; }
.totals .pill {
  border: 1px solid var(--border); background: var(--surface2); border-radius: 99px;
  padding: 5px 12px; font-size: 13px;
}
.totals .pill b { color: var(--accent); }
:root[data-theme="clipboard"] .totals .pill b { color: var(--accent); }

/* landing sections */
.band { border-top: 1px solid var(--border); padding: 48px 0; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.step .num {
  font-family: "Oswald", sans-serif; font-size: 30px; font-weight: 700; color: var(--accent);
}
details.faq { border-bottom: 1px solid var(--border); padding: 14px 0; }
details.faq summary { font-weight: 600; cursor: pointer; font-size: 16px; }
details.faq p { margin: 10px 0 0; color: var(--muted); }

/* notices */
.notice { border-left: 3px solid var(--accent); background: var(--surface2); padding: 12px 16px; font-size: 14px; border-radius: 0 var(--radius) var(--radius) 0; margin: 14px 0; }
.error { color: var(--danger); font-size: 14px; font-weight: 600; margin-top: 10px; }

/* size chart display */
.chartimg { max-width: 100%; border: 1px solid var(--border); border-radius: var(--radius); }
table.sizechart { width: 100%; border-collapse: collapse; font-size: 13px; }
table.sizechart th, table.sizechart td { border: 1px solid var(--border); padding: 7px 9px; text-align: center; }
table.sizechart th { background: var(--surface2); }

footer.foot { border-top: 1px solid var(--border); margin-top: 60px; padding: 26px 0 40px; font-size: 13px; color: var(--muted); }
footer.foot a { color: var(--muted); }

/* demo highlighter (marketing captures via ?demo_hl=) */
.demo-hl{background:rgba(200,255,11,.35)!important;box-shadow:0 0 0 3px #C8FF0B, 0 0 14px rgba(200,255,11,.8)!important;border-color:#C8FF0B!important}
.chip.on.demo-hl{background:var(--accent)!important;color:var(--accent-ink)!important}

/* print */
@media print {
  .no-print, .top, footer.foot { display: none !important; }
  body { background: #fff; color: #000; font-size: 12px; }
  .card { border: none; box-shadow: none; padding: 0; }
  table.grid th, table.grid td { border-bottom: 1px solid #999; color: #000; }
}