@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@500;700;900&family=Shippori+Mincho:wght@500;600;700;800&display=swap");

:root {
  --ink: #1b1315;
  --ink-soft: #493d3f;
  --paper: #eee6d6;
  --paper-light: #faf7ed;
  --red: #a80f2a;
  --red-bright: #d52243;
  --gold: #b89650;
  --line: rgba(56, 38, 42, 0.19);
  --shadow: 0 20px 60px rgba(17, 9, 11, 0.22);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: #170f12;
  font-family: "Shippori Mincho", "Yu Mincho", serif;
}

button, input, textarea, select { font: inherit; }
button { color: inherit; }

.noise {
  position: fixed;
  inset: 0;
  opacity: 0.06;
  pointer-events: none;
  z-index: 20;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}

.site-header {
  min-height: 78px;
  padding: 12px clamp(20px, 4vw, 64px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--paper-light);
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: rgba(23, 15, 18, .94);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
}

.brand { border: 0; background: none; padding: 0; cursor: pointer; text-align: left; color: inherit; }
.brand-title { font-weight: 900; font-size: 24px; letter-spacing: .06em; }
.brand-title span { color: #ef3655; }
nav { display: flex; gap: 4px; }
.nav-button { border: 0; background: none; color: rgba(255,255,255,.55); padding: 12px 16px; cursor: pointer; position: relative; }
.nav-button:hover, .nav-button.is-active { color: white; }
.nav-button.is-active::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px; background: var(--red-bright); }

.view { display: none; }
.view.is-active { display: block; }
.game-shell { min-height: calc(100vh - 78px); padding-bottom: 48px; background: radial-gradient(circle at 50% 15%, #f8f2e6 0, var(--paper) 48%, #d8cbb6 100%); position: relative; }
.game-shell::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, transparent 49.8%, rgba(86,50,52,.05) 50%, transparent 50.2%); }

.scorebar { max-width: 1060px; margin: 0 auto; padding: 20px 20px 12px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.score-block { display: flex; align-items: baseline; gap: 8px; }
.cpu-score { justify-content: flex-end; }
.score-label { font-weight: 700; font-size: 14px; letter-spacing: .12em; }
.score-block strong { font-family: Arial, sans-serif; font-size: 32px; }
.score-unit { font-size: 12px; color: var(--ink-soft); }
.match-clock { text-align: center; display: grid; justify-items: center; min-width: 110px; }
.match-clock span, .match-clock small { font-size: 10px; letter-spacing: .14em; color: var(--ink-soft); }
.match-clock strong { font-family: Arial, sans-serif; font-size: 22px; letter-spacing: .06em; }
.match-controls { display: flex; gap: 6px; margin-top: 8px; }
.match-controls[hidden] { display: none; }
.mini-button { border: 1px solid var(--line); background: transparent; color: var(--ink-soft); padding: 4px 10px; font-size: 10px; letter-spacing: .04em; cursor: pointer; }
.mini-button:hover { border-color: var(--red); color: var(--red); }
.card-field.is-paused { opacity: .35; pointer-events: none; }

.reader-panel { max-width: 1060px; margin: 0 auto 22px; min-height: 118px; padding: 22px 26px; display: grid; grid-template-columns: 64px 1fr 64px; gap: 20px; align-items: center; color: var(--paper-light); background: linear-gradient(120deg, #211518, #3b171f 60%, #6e0e20); box-shadow: var(--shadow); position: relative; overflow: hidden; }
.reader-panel::after { content: ""; position: absolute; right: 9%; top: -100%; width: 1px; height: 300%; background: rgba(255,255,255,.15); transform: rotate(28deg); box-shadow: 18px 0 rgba(255,255,255,.05), 36px 0 rgba(255,255,255,.03); }
.reader-mark { width: 56px; height: 56px; border: 1px solid var(--gold); display: grid; place-items: center; color: var(--gold); font-size: 24px; transform: rotate(45deg); }
.reader-mark::first-letter { transform: rotate(-45deg); }
.reader-copy { position: relative; z-index: 1; }
.eyebrow { margin: 0 0 6px; font-family: Arial, sans-serif; font-size: 10px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--red-bright); }
.reader-copy .eyebrow { color: var(--gold); }
.reader-copy h1 { margin: 0; font-size: clamp(18px, 2.3vw, 28px); letter-spacing: .05em; }
.round-message { margin: 6px 0 0; color: rgba(255,255,255,.6); font-size: 12px; }
.icon-button { position: relative; z-index: 1; border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.05); color: white; width: 58px; height: 58px; cursor: pointer; font-size: 22px; }
.icon-button span { display: block; font-size: 9px; }
.icon-button:disabled { opacity: .3; cursor: default; }

.card-field { max-width: 1060px; margin: 0 auto; padding: 0 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pick-card { min-height: 118px; padding: 22px 20px 20px; border: 1px solid rgba(69,45,46,.25); background: rgba(255,252,244,.88); box-shadow: 0 5px 0 rgba(70,44,45,.09); text-align: left; cursor: pointer; position: relative; overflow: hidden; transition: transform .14s, box-shadow .14s, background .14s; }
.pick-card::after { content: ""; position: absolute; left: 11px; top: 11px; right: 11px; bottom: 11px; border: 1px solid rgba(92,58,59,.08); pointer-events: none; }
.pick-card:not(:disabled):hover { transform: translateY(-3px); box-shadow: 0 8px 0 rgba(70,44,45,.13); background: #fffdf7; }
.pick-card:focus-visible { outline: 3px solid var(--red-bright); outline-offset: 2px; }
.pick-card:disabled { cursor: default; }
.card-number { position: absolute; top: 8px; left: 10px; font: 9px Arial, sans-serif; color: #9a8884; }
.card-copy { font-weight: 700; font-size: clamp(13px, 1.3vw, 16px); line-height: 1.75; letter-spacing: .02em; }
.card-tag { position: absolute; right: 10px; bottom: 9px; width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; color: var(--red); border: 1px solid var(--red); font-size: 10px; }
.pick-card.is-correct { background: #fff0c9; border-color: #b8872d; transform: translateY(-4px); box-shadow: 0 0 0 3px rgba(184,135,45,.24); }
.pick-card.is-cpu { background: #eed2d7; border-color: var(--red); box-shadow: 0 0 0 3px rgba(168,15,42,.16); }
.pick-card.is-wrong { animation: shake .32s; background: #d7cfd0; opacity: .62; }
@keyframes shake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }

.opening-shell {
  position: relative;
  min-height: calc(100vh - 78px);
  padding: clamp(36px, 7vw, 72px) 20px 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  text-align: center;
  color: var(--paper-light);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 50% 34%, rgba(213,34,67,.28), rgba(213,34,67,0) 60%),
    radial-gradient(circle at 50% 0%, #2a1216 0%, #0d0708 60%, #060404 100%);
}
.opening-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    repeating-linear-gradient(118deg, rgba(213,34,67,.06) 0 1px, transparent 1px 130px),
    repeating-linear-gradient(28deg, rgba(184,150,80,.05) 0 1px, transparent 1px 96px);
}
.opening-frame { position: absolute; inset: 16px; border: 1px solid rgba(184,150,80,.22); pointer-events: none; }
.crest-mark { position: relative; width: clamp(60px, 8vw, 92px); height: auto; color: var(--gold); filter: drop-shadow(0 0 16px rgba(213,34,67,.4)); }
.opening-kicker { position: relative; margin: 0; font-family: Arial, sans-serif; font-size: 11px; font-weight: 700; letter-spacing: .34em; text-transform: uppercase; color: var(--gold); }
.opening-title { position: relative; margin: 0; font-size: clamp(42px, 8vw, 96px); line-height: 1.05; letter-spacing: .05em; }
.opening-title span { color: #ef3655; white-space: nowrap; }
.chain-divider { position: relative; width: min(320px, 64vw); height: 14px; color: var(--gold); opacity: .5; }
.opening-line { position: relative; margin: 4px 0 0; max-width: 560px; color: rgba(255,255,255,.7); line-height: 2; font-size: clamp(14px, 1.6vw, 17px); }
.opening-line strong { display: block; margin-top: 8px; color: #fff; font-weight: 700; letter-spacing: .02em; }
.opening-options { position: relative; margin-top: 10px; width: 100%; max-width: 420px; padding: 28px; border: 1px solid rgba(255,255,255,.14); background: rgba(0,0,0,.28); display: grid; gap: 18px; text-align: left; }
.opening-options label:not(.toggle-row) { display: grid; gap: 8px; font-size: 12px; letter-spacing: .1em; }
.opening-footnote { position: relative; margin: 4px 0 0; font-size: 10px; letter-spacing: .04em; color: rgba(255,255,255,.34); }

select, input, textarea { border: 1px solid var(--line); background: var(--paper-light); color: var(--ink); border-radius: 0; padding: 13px; }
.toggle-row, .rights-check { display: flex; align-items: flex-start; gap: 10px; font-size: 12px; line-height: 1.6; }
.toggle-row input, .rights-check input { accent-color: var(--red); margin-top: 3px; }
.toggle-row span { display: grid; gap: 2px; }
.primary-button { border: 0; background: var(--red); color: white; padding: 16px 20px; font-weight: 700; letter-spacing: .08em; cursor: pointer; display: flex; justify-content: space-between; align-items: center; box-shadow: 4px 4px 0 #5c0718; transition: transform .15s, box-shadow .15s; }
.primary-button:hover { transform: translate(-2px,-2px); box-shadow: 6px 6px 0 #5c0718; }
.secondary-button { border: 1px solid rgba(255,255,255,.3); background: transparent; color: white; padding: 13px 18px; font-weight: 700; letter-spacing: .06em; cursor: pointer; }
.secondary-button:hover { border-color: var(--gold); color: var(--gold); }

.mode-tabs { display: flex; gap: 6px; margin-bottom: 4px; }
.mode-tab { flex: 1; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.03); color: rgba(255,255,255,.55); padding: 10px 8px; font-size: 12px; letter-spacing: .04em; cursor: pointer; }
.mode-tab.is-active { background: rgba(213,34,67,.16); border-color: var(--red-bright); color: white; }
.mode-panel[hidden] { display: none; }
.online-join-row { display: flex; gap: 8px; margin-top: 12px; }
.online-join-row input { flex: 1; min-width: 0; text-transform: uppercase; letter-spacing: .2em; text-align: center; }
#online-idle, #online-waiting { display: grid; gap: 4px; }
#online-idle[hidden], #online-waiting[hidden] { display: none; }
.online-waiting-label { margin: 6px 0 0; font-size: 11px; letter-spacing: .12em; color: rgba(255,255,255,.5); text-align: center; }
.room-code { margin: 4px 0 10px; font-family: Arial, sans-serif; font-size: 40px; font-weight: 700; letter-spacing: .3em; text-align: center; color: var(--gold); }
.online-status { margin: 0 0 14px; font-size: 12px; color: rgba(255,255,255,.6); text-align: center; }

.result-shell { min-height: calc(100vh - 78px); padding: 56px 20px 64px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; text-align: center; color: var(--paper-light); background: radial-gradient(circle at 50% 28%, #2a1216 0%, #0d0708 62%, #060404 100%); }
.result-shell #result-title { margin: 6px 0 16px; font-size: clamp(40px, 6vw, 76px); line-height: 1.15; letter-spacing: .04em; }
.result-shell .result-score { font-family: Arial, sans-serif; font-size: 32px; margin: 4px; }
.result-shell .result-detail { font-size: 14px; color: rgba(255,255,255,.6); }
.result-shell .primary-button { margin: 28px auto 0; min-width: 280px; }

.content-view { min-height: calc(100vh - 78px); background: var(--paper); padding: 70px clamp(20px, 5vw, 80px) 90px; }
.page-heading { max-width: 1100px; margin: 0 auto 46px; }
.page-heading h1 { font-size: clamp(44px, 7vw, 82px); margin: 4px 0 14px; line-height: 1; }
.page-heading > p:last-child { color: var(--ink-soft); }
.ogiri-grid { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 360px 1fr; gap: 50px; align-items: start; }
.submission-card { background: #211518; color: white; padding: 28px; box-shadow: var(--shadow); display: grid; gap: 17px; position: sticky; top: 106px; }
.form-heading, .list-toolbar { display: flex; justify-content: space-between; align-items: center; }
.form-heading span { font-size: 20px; font-weight: 700; }
.form-heading small { color: rgba(255,255,255,.45); }
.submission-card > label:not(.rights-check) { display: grid; gap: 7px; font-size: 12px; color: rgba(255,255,255,.72); }
textarea { resize: vertical; min-height: 74px; }
.form-message { min-height: 20px; margin: 0; font-size: 11px; color: #e8bd65; }
.list-toolbar { border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 18px; }
.list-toolbar h2 { margin: 3px 0 0; font-size: 30px; }
.list-toolbar select { background: transparent; }
.submission-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.community-card { background: rgba(255,252,244,.78); border: 1px solid var(--line); padding: 20px; min-height: 210px; position: relative; display: flex; flex-direction: column; }
.community-card.is-candidate { border-top: 3px solid var(--red); }
.community-meta { display: flex; justify-content: space-between; font-size: 10px; color: var(--ink-soft); }
.community-meta span { color: var(--red); font-weight: 700; }
.community-upper { margin: 24px 0 8px; color: #776a68; font-size: 12px; }
.community-lower { margin: 0; font-weight: 700; font-size: 17px; line-height: 1.7; }
.vote-button { margin-top: auto; align-self: flex-end; border: 1px solid var(--line); background: transparent; padding: 6px 10px; cursor: pointer; font: 11px Arial, sans-serif; }
.vote-button span { color: var(--red); }
.vote-button.is-voted { opacity: .5; cursor: default; }
.local-note { color: var(--ink-soft); font-size: 11px; margin-top: 18px; }

.rules-grid { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.rules-grid article { padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.rules-grid span { font: 11px Arial, sans-serif; color: var(--red); }
.rules-grid h2 { font-size: 30px; margin: 14px 0; }
.rules-grid p { color: var(--ink-soft); line-height: 1.9; font-size: 13px; }
.rights-note { max-width: 1100px; margin: 40px auto 0; padding: 28px 32px; color: var(--paper-light); background: #2c1d20; }
.rights-note h2 { margin: 0 0 10px; font-size: 18px; }
.rights-note p { margin: 0; font-size: 12px; line-height: 1.9; color: rgba(255,255,255,.64); }

footer { padding: 24px clamp(20px, 4vw, 64px); display: flex; justify-content: space-between; color: rgba(255,255,255,.44); font-size: 10px; }
footer a { color: var(--gold); }

@media (max-width: 820px) {
  .card-field { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .pick-card { min-height: 106px; padding: 20px 14px 17px; }
  .ogiri-grid { grid-template-columns: 1fr; }
  .submission-card { position: static; }
  .rules-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 540px) {
  .site-header { min-height: 66px; padding: 8px 14px; }
  .brand-title { font-size: 16px; }
  .nav-button { padding: 10px 8px; font-size: 12px; }
  .scorebar { padding: 12px 12px 8px; }
  .score-block { display: grid; gap: 0; }
  .cpu-score { justify-items: end; }
  .score-block strong { font-size: 25px; }
  .score-unit { display: none; }
  .reader-panel { margin-bottom: 12px; padding: 15px; min-height: 96px; grid-template-columns: 38px 1fr 44px; gap: 10px; }
  .reader-mark { width: 34px; height: 34px; font-size: 16px; }
  .icon-button { width: 42px; height: 48px; }
  .card-field { padding: 0 8px; grid-template-columns: repeat(3, 1fr); }
  .pick-card { min-height: 116px; }
  .card-copy { font-size: 12px; line-height: 1.6; }
  .opening-shell { padding: 28px 16px 40px; gap: 16px; }
  .opening-options { padding: 20px; }
  .result-shell .result-score { font-size: 26px; }
  .content-view { padding-top: 48px; }
  .submission-list { grid-template-columns: 1fr; }
  .rules-grid { grid-template-columns: 1fr; }
  footer { display: grid; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}