/* Oni's Blade giveaway — ink, blood and gold.
   Layout: full-bleed key-art hero, then a two-column entry area (steps left, form right). */
:root {
  --ink: #0d0b10;
  --ink-2: #15121a;
  --ink-3: #1d1923;
  --line: rgba(212, 167, 74, 0.16);
  --line-strong: rgba(212, 167, 74, 0.38);
  --text: #f3ece4;
  --muted: #a49ba8;
  --blood: #c8102e;
  --blood-hi: #ff3d50;
  --gold: #d4a74a;
  --gold-hi: #f0cd7c;
  --ok: #4fd39a;
  --display: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif;
  --body: "Zen Kaku Gothic New", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --radius: 4px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--ink); color: var(--text); }
body { font: 16px/1.65 var(--body); -webkit-font-smoothing: antialiased; }
a { color: var(--gold-hi); text-underline-offset: 3px; }
::selection { background: var(--blood); color: #fff; }
.wrap { max-width: 1120px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }

/* Header */
.top { position: relative; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 15px; letter-spacing: .04em; }
.brand img { width: 32px; height: 32px; object-fit: contain; }
.top nav { display: flex; gap: 22px; font-size: 14px; }
.top nav a { color: var(--muted); text-decoration: none; transition: color .15s; }
.top nav a:hover { color: var(--text); }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-art { position: absolute; inset: 0 0 0 auto; width: min(54%, 640px); }
.hero-art img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; display: block;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 42%); mask-image: linear-gradient(to right, transparent 0%, #000 42%); }
.hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 120px; z-index: 1; background: linear-gradient(to bottom, rgba(13,11,16,.8), transparent); pointer-events: none; }
.top nav a { text-shadow: 0 1px 10px rgba(13,11,16,.9); color: #d6cfd6; }
.hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 140px; background: linear-gradient(to top, var(--ink), transparent); pointer-events: none; }
.kanji { position: absolute; right: max(24px, env(safe-area-inset-right, 0px)); top: 92px; text-shadow: 0 2px 12px rgba(13,11,16,.8); z-index: 2; writing-mode: vertical-rl;
  font: 800 18px/1 var(--display); letter-spacing: .5em; color: var(--gold); opacity: .9; }
.hero-copy { position: relative; z-index: 2; padding-block: 28px 64px; max-width: 520px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; text-transform: uppercase; letter-spacing: .22em; font-size: 12px; font-weight: 700; color: var(--gold); }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--gold); }
h1 { font: 800 clamp(42px, 6vw, 76px)/.95 var(--display); letter-spacing: -.01em; margin: 14px 0 6px; text-wrap: balance; }
.prize { font: 800 clamp(24px, 3vw, 34px)/1.1 var(--display); margin: 0 0 14px; }
.prize em { font-style: normal; color: var(--blood-hi); }
.lede { color: var(--muted); font-size: 16px; max-width: 42ch; margin: 0; }

.clock { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: flex-end; gap: 18px 28px; }
.clock .label { width: 100%; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .18em; }
.digits { display: flex; gap: 6px; align-items: baseline; }
.digits div { display: flex; flex-direction: column; align-items: center; min-width: 58px; padding: 8px 6px 6px; border-top: 1px solid var(--line-strong); }
.digits b { font: 800 28px/1 var(--display); font-variant-numeric: tabular-nums; }
.digits span { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .16em; margin-top: 6px; }
.count { font-size: 14px; color: var(--muted); padding-bottom: 8px; }
.count b { color: var(--text); font-variant-numeric: tabular-nums; font-size: 18px; margin-right: 4px; }

/* Entry area */
.entry { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 440px); gap: 56px; padding-block: 44px 24px; align-items: start; }
.entry > * { min-width: 0; }
.section-title { font: 800 30px/1.15 var(--display); margin: 0 0 6px; text-wrap: balance; }
.sub { color: var(--muted); margin: 0 0 22px; font-size: 15px; }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.step { display: flex; align-items: center; gap: 18px; padding-block: 18px; border-top: 1px solid var(--line); }
.step:last-child { border-bottom: 1px solid var(--line); }
.step .n { flex: 0 0 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-strong);
  font: 800 17px/1 var(--display); color: var(--gold); transition: background .2s, color .2s; }
.step.done .n { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.step .t { flex: 1; min-width: 0; }
.step .t b { display: block; font-weight: 700; }
.step .t small { color: var(--muted); font-size: 14px; }
.btn-pair { display: flex; gap: 8px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--blood); cursor: pointer; text-decoration: none;
  background: var(--blood); color: #fff; font: 700 15px/1 var(--body); letter-spacing: .02em; padding: 13px 20px; border-radius: var(--radius); white-space: nowrap; transition: background .15s, border-color .15s; }
.btn:hover { background: var(--blood-hi); border-color: var(--blood-hi); }
.btn.ghost { background: transparent; border-color: var(--line-strong); color: var(--text); }
.btn.ghost:hover { border-color: var(--gold); color: var(--gold-hi); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn.block { width: 100%; padding: 17px; font-size: 16px; letter-spacing: .06em; text-transform: uppercase; }
.btn:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

.card { background: var(--ink-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; position: relative; }
.card::before { content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 2px; background: linear-gradient(90deg, var(--blood), var(--gold) 70%, transparent); }
.card h2 { font: 800 24px/1.2 var(--display); margin: 0 0 4px; }
.card + .card { margin-top: 20px; }

form .grid { display: grid; gap: 16px; }
label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 7px; letter-spacing: .02em; }
label small { font-weight: 400; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=number], textarea {
  width: 100%; background: var(--ink); color: var(--text); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 13px 14px; font: 16px var(--body); transition: border-color .15s; }
input::placeholder { color: #6f6774; }
input:focus, textarea:focus { outline: none; border-color: var(--gold); }
.field { margin-top: 16px; }
.checks { margin: 20px 0 22px; display: grid; gap: 12px; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; line-height: 1.5; color: var(--muted); font-weight: 400; margin: 0; }
.check input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--blood); flex: 0 0 auto; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { margin-top: 12px; font-size: 14px; min-height: 1.4em; }
.msg.err { color: var(--blood-hi); }
.fine { color: var(--muted); font-size: 12.5px; margin: 14px 0 0; text-align: center; }

.success { text-align: center; }
.success .seal { width: 64px; height: 64px; margin: 4px auto 14px; border-radius: 50%; display: grid; place-items: center; background: var(--blood); font: 800 30px/1 var(--display); color: #fff; }
.success h2 { font-size: 32px; }
.reflink { display: flex; gap: 8px; margin: 18px 0 12px; }
.reflink input { flex: 1; min-width: 0; font: 13px var(--mono); }
.row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* Shared (fair, rules, admin) */
.page-hero { padding-block: 48px 36px; border-bottom: 1px solid var(--line); margin-bottom: 36px; }
.page-hero h1 { font-size: clamp(42px, 6.5vw, 76px); }
.page-hero h1 em { font-style: normal; color: var(--blood-hi); }
.page-hero .lede { max-width: 62ch; }
.stack { display: grid; gap: 20px; padding-bottom: 20px; }
.mono { font: 13px/1.5 var(--mono); word-break: break-all; color: var(--muted); }
.kv { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 10px 20px; font-size: 14px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; }
.pill { display: inline-block; vertical-align: middle; padding: 3px 10px; border-radius: 99px; font: 700 11px/1.4 var(--body); letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--line-strong); color: var(--gold); margin-left: 8px; }
.pill.ok { border-color: color-mix(in srgb, var(--ok) 50%, transparent); color: var(--ok); }
.pill.bad { border-color: var(--blood); color: var(--blood-hi); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
td { font-variant-numeric: tabular-nums; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
h3 { font: 800 19px/1.3 var(--display); margin: 24px 0 6px; }

.prose > * { max-width: 72ch; }
.prose h2 { font: 800 21px/1.3 var(--display); margin: 32px 0 8px; }
.prose p, .prose li { color: #d9d1cb; }
.prose ol { padding-left: 1.3em; display: grid; gap: 10px; }
.banner { border: 1px solid var(--blood); border-left-width: 3px; border-radius: var(--radius); padding: 12px 16px; font-size: 14px; background: color-mix(in srgb, var(--blood) 10%, transparent); }

footer { color: var(--muted); font-size: 13px; padding-block: 32px 56px; border-top: 1px solid var(--line); margin-top: 48px; }
footer p { margin: 0 0 8px; max-width: 90ch; }
footer a { color: var(--muted); }
footer b { color: var(--text); }

@media (max-width: 860px) {
  .entry { grid-template-columns: 1fr; gap: 40px; padding-top: 36px; }
  .hero-art { inset: 0 0 auto 0; width: 100%; height: 330px; }
  .hero-art img { -webkit-mask-image: linear-gradient(to top, transparent 4%, #000 50%); mask-image: linear-gradient(to top, transparent 4%, #000 50%); object-position: 50% 14%; }
  .hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 110px; z-index: 1; background: linear-gradient(to bottom, rgba(13,11,16,.85), transparent); pointer-events: none; }
  .hero-copy { padding-block: 150px 40px; }
  .hero-copy h1 { text-shadow: 0 2px 24px rgba(13,11,16,.8); }
  .kanji { top: 76px; font-size: 15px; }
  .top nav a.hide-sm { display: none; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .kv dd { margin-bottom: 10px; }
  .two { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .step { flex-wrap: wrap; }
  .step .btn { width: 100%; margin-left: 58px; width: calc(100% - 58px); }
  .step .btn-pair { margin-left: 58px; width: calc(100% - 58px); }
  .step .btn-pair .btn { margin-left: 0; width: auto; flex: 1; }
  .digits div { min-width: 0; flex: 1; }
  .digits { width: 100%; }
  .card { padding: 22px 18px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }