/* SLAP OUT: portrait-first video stage with an overlay HUD; wide screens add
   fighter cards (left) and the multiplier ladder plus history (right). */
:root {
  --so-red: #d7262f; --so-red-deep: #8f1219; --so-gold: #e3b45a; --so-ink: #0b0c10;
  --so-chalk: #f4f2ec; --so-glass: rgba(10, 11, 16, 0.62); --so-edge: rgba(255, 255, 255, 0.16);
  --so-font: "Inter", "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--so-ink); color: var(--so-chalk); font-family: var(--so-font); overflow: hidden; }
button { font: inherit; color: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
button:disabled { cursor: default; }
[hidden] { display: none !important; }

.so-root { position: fixed; inset: 0; overflow: hidden; user-select: none; -webkit-user-select: none; }
.so-root.is-shake .so-screen { animation: so-shake 0.5s cubic-bezier(.36,.07,.19,.97); }
@keyframes so-shake { 10%, 90% { transform: translate(-2px, 1px); } 20%, 80% { transform: translate(5px, -2px); } 30%, 50%, 70% { transform: translate(-8px, 2px); } 40%, 60% { transform: translate(8px, -1px); } }

/* ---------- stage ---------- */
.so-stage { position: absolute; inset: 0; overflow: hidden; background: #000; }
.so-screen, .so-video, .so-chalk, .so-shade, .so-flash { position: absolute; inset: 0; width: 100%; height: 100%; }
.so-video { object-fit: cover; opacity: 0; transition: opacity 0.12s linear; background: #000; }
.so-video.is-on { opacity: 1; }
.so-shade { pointer-events: none; background:
  linear-gradient(to bottom, rgba(0,0,0,0.55) 0, rgba(0,0,0,0) 14%, rgba(0,0,0,0) 46%, rgba(0,0,0,0.78) 74%, rgba(0,0,0,0.92) 100%); }
.so-chalk { pointer-events: none; }
.so-flash { pointer-events: none; background: radial-gradient(circle at 50% 35%, rgba(255,255,255,0.55), rgba(255,255,255,0) 60%); opacity: 0; }
.so-flash.is-on { animation: so-flash 0.35s ease-out; }
@keyframes so-flash { from { opacity: 1; } to { opacity: 0; } }

.so-glass { background: var(--so-glass); border: 1px solid var(--so-edge); border-radius: 14px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.so-k { display: block; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.78; font-weight: 600; }
.so-v { display: block; font-size: 16px; font-weight: 800; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* top bar */
.so-top { position: absolute; left: 0; right: 0; top: 0; display: flex; align-items: center; gap: 8px;
  padding: max(10px, env(safe-area-inset-top)) 12px 8px; z-index: 3; }
.so-balance { padding: 5px 12px; min-width: 0; }
.so-tag { font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 8px; border-radius: 8px; background: var(--so-gold); color: #1a1205; }
.so-tools { margin-left: auto; display: flex; gap: 8px; }
.so-icon { width: 44px; height: 44px; display: grid; place-items: center; padding: 0; }
.so-icon svg { width: 22px; height: 22px; }
.so-icon.is-on { background: var(--so-gold); color: #1a1205; border-color: transparent; }
.so-icon-sound .so-x { display: none; }
.so-icon-sound.is-muted .so-x { display: inline; }
.so-icon-sound.is-muted .so-wave { display: none; }

/* callout ("Survived · 1.29×", "KO") */
.so-callout { position: absolute; left: 0; right: 0; top: 30%; text-align: center; z-index: 3; pointer-events: none;
  font-size: clamp(28px, 9vw, 54px); font-weight: 900; font-style: italic; letter-spacing: -0.01em; text-transform: uppercase;
  text-shadow: 0 3px 0 rgba(0,0,0,0.55), 0 0 24px rgba(0,0,0,0.6); opacity: 0; transform: scale(0.9); }
.so-callout.is-on { animation: so-call 1.6s ease-out forwards; }
.so-callout.is-ko { color: #fff; -webkit-text-stroke: 2px var(--so-red); font-size: clamp(64px, 24vw, 140px); }
@keyframes so-call { 0% { opacity: 0; transform: scale(1.5); } 12% { opacity: 1; transform: scale(1); } 75% { opacity: 1; } 100% { opacity: 0; transform: scale(1.03); } }

/* HUD */
.so-hud { position: absolute; left: 0; right: 0; bottom: 0; z-index: 3; display: flex; flex-direction: column; gap: 8px;
  padding: 0 12px max(12px, env(safe-area-inset-bottom)); }
.so-plate { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; padding: 0 4px; }
.so-mult { display: block; font-size: 34px; line-height: 1; font-weight: 900; font-style: italic; font-variant-numeric: tabular-nums; color: #fff; text-shadow: 0 2px 10px rgba(0,0,0,0.6); }
.so-plate-r { text-align: right; display: flex; flex-direction: column; gap: 2px; }
.so-level { font-size: 12px; font-weight: 700; opacity: 0.85; text-transform: uppercase; letter-spacing: 0.06em; }
.so-next { font-size: 15px; font-weight: 800; color: var(--so-gold); font-variant-numeric: tabular-nums; }

.so-pick-k { margin: 0 4px 4px; }
.so-pick-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.so-opt { min-height: 48px; border-radius: 12px; border: 1px solid var(--so-edge); background: var(--so-glass); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; padding: 4px; }
.so-opt-name { font-size: 15px; font-weight: 800; }
.so-opt-odds { font-size: 12px; opacity: 0.8; }
.so-opt.is-selected { background: var(--so-chalk); color: var(--so-ink); border-color: transparent; }
.so-opt.is-unavailable { opacity: 0.4; text-decoration: line-through; }
.so-opt:disabled:not(.is-unavailable):not(.is-selected) { opacity: 0.7; }
.so-reason { margin: 4px 4px 0; font-size: 12px; color: var(--so-gold); }

.so-money { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.so-bet { display: flex; align-items: center; justify-content: space-between; padding: 2px; min-height: 52px; }
.so-bet-mid { text-align: center; min-width: 0; }
.so-round { width: 44px; height: 44px; border-radius: 11px; border: 0; background: rgba(255,255,255,0.1); font-size: 24px; font-weight: 700; line-height: 1; }
.so-round:disabled { opacity: 0.35; }
.so-cash { min-height: 52px; border-radius: 14px; border: 2px solid var(--so-gold); background: linear-gradient(#2a2213, #15110a); color: var(--so-gold);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; padding: 4px; }
.so-cash-l { font-size: 15px; font-weight: 900; letter-spacing: 0.04em; }
.so-cash-s { font-size: 13px; font-weight: 700; font-variant-numeric: tabular-nums; min-height: 0; }
.so-cash:disabled { opacity: 0.38; border-color: rgba(227,180,90,0.5); }

.so-slap { min-height: 62px; border: 0; border-radius: 16px; color: #fff; padding: 6px 12px;
  background: linear-gradient(180deg, #ef3a42 0%, var(--so-red) 45%, var(--so-red-deep) 100%);
  box-shadow: 0 6px 0 #5e0a0f, 0 10px 24px rgba(215,38,47,0.35); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px;
  transition: transform 0.08s, box-shadow 0.08s; }
.so-slap:active:not(:disabled) { transform: translateY(4px); box-shadow: 0 2px 0 #5e0a0f; }
.so-slap-l { font-size: 22px; font-weight: 900; font-style: italic; letter-spacing: 0.02em; }
.so-slap-s { font-size: 13px; font-weight: 700; opacity: 0.9; font-variant-numeric: tabular-nums; }
.so-slap:disabled { filter: grayscale(0.6) brightness(0.7); }
.so-error { margin: 0; font-size: 13px; color: #ff8a8f; text-align: center; min-height: 0; }
.so-error:empty { display: none; }

/* celebration and toast */
.so-banner { position: absolute; left: 50%; top: 38%; z-index: 5; transform: translate(-50%, -50%) scale(0.8); opacity: 0; pointer-events: none;
  min-width: min(84%, 340px); text-align: center; padding: 18px 20px; border-radius: 20px;
  background: radial-gradient(circle at 50% 0, rgba(227,180,90,0.35), rgba(11,12,16,0.9) 70%); border: 2px solid var(--so-gold); }
.so-banner.is-on { pointer-events: auto; animation: so-pop 0.35s cubic-bezier(.2,1.6,.4,1) forwards; }
.so-banner.is-leaving { animation: so-out 0.3s ease-in forwards; }
@keyframes so-pop { to { opacity: 1; transform: translate(-50%, -50%) scale(1); } }
@keyframes so-out { from { opacity: 1; transform: translate(-50%, -50%) scale(1); } to { opacity: 0; transform: translate(-50%, -50%) scale(0.92); } }
.so-b-tier { font-size: 18px; font-weight: 900; font-style: italic; text-transform: uppercase; color: var(--so-gold); letter-spacing: 0.05em; }
.so-b-amt { font-size: 40px; font-weight: 900; font-variant-numeric: tabular-nums; }
.so-b-x { font-size: 16px; font-weight: 700; opacity: 0.85; }
.so-toast { position: absolute; left: 50%; top: 72px; z-index: 6; transform: translate(-50%, -8px); opacity: 0; transition: opacity 0.2s, transform 0.2s;
  padding: 8px 14px; font-size: 14px; font-weight: 700; pointer-events: none; white-space: nowrap; }
.so-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- splash and intro ---------- */
.so-splash { position: absolute; inset: 0; z-index: 8; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 36px;
  background: radial-gradient(circle at 50% 30%, #2a2c36 0, #0b0c10 70%); }
.so-logo { display: flex; flex-direction: column; align-items: center; line-height: 0.88; font-size: clamp(64px, 22vw, 132px); font-weight: 900; font-style: italic;
  letter-spacing: -0.03em; color: #fff; text-shadow: 3px 0 0 var(--so-red), -3px 0 0 #3a55ff; }
.so-start { min-width: 220px; min-height: 56px; border: 0; border-radius: 28px; background: var(--so-red); font-size: 18px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.06em; }
.so-start:disabled { opacity: 0.5; }
.so-skip { position: absolute; bottom: max(24px, env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%); min-height: 44px; padding: 0 20px;
  border-radius: 22px; border: 1px solid var(--so-edge); background: rgba(0,0,0,0.45); font-size: 14px; font-weight: 700; }
.so-root.is-intro .so-splash { background: transparent; }
.so-root.is-intro .so-logo { display: none; }
.so-root.is-splash .so-hud, .so-root.is-splash .so-top, .so-root.is-intro .so-hud, .so-root.is-intro .so-top { visibility: hidden; }

/* ---------- rules dialog ---------- */
.so-dialog { position: absolute; inset: 0; z-index: 10; background: rgba(5,6,9,0.985); display: flex; flex-direction: column; align-items: center; }
.so-dialog-bar { width: 100%; max-width: 620px; display: flex; align-items: center; gap: 12px; padding: max(10px, env(safe-area-inset-top)) 16px 10px; }
.so-dialog-h { margin: 0; font-size: 20px; font-weight: 900; font-style: italic; text-transform: uppercase; }
.so-close { margin-left: auto; min-width: 88px; min-height: 44px; border-radius: 22px; border: 1px solid var(--so-edge); background: rgba(255,255,255,0.08); font-size: 15px; font-weight: 700; }
.so-dialog-body { width: 100%; max-width: 620px; overflow-y: auto; padding: 0 16px 32px; font-size: 14px; line-height: 1.45; user-select: text; -webkit-user-select: text; }
.so-dialog-body p { margin: 0 0 10px; }
.so-rules-strong { font-weight: 700; }
.so-rules-note { font-size: 13px; opacity: 0.8; }
.so-rules-key { margin: 14px 0; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--so-gold); background: rgba(227,180,90,0.08); }
.so-rules-key p { margin: 0 0 4px; font-size: 16px; font-weight: 800; }
.so-rules-key .so-rules-note { font-size: 13px; font-weight: 400; margin: 0; }
.so-rules-h { margin: 20px 0 8px; font-size: 15px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.05em; color: var(--so-gold); }
.so-rules-t { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; margin-bottom: 10px; }
.so-rules-t th, .so-rules-t td { padding: 6px 4px; text-align: right; border-bottom: 1px solid rgba(255,255,255,0.08); }
.so-rules-t th:first-child { text-align: left; }
.so-rules-t thead th { font-size: 12px; opacity: 0.75; font-weight: 700; }
.so-dialog .so-fighter { margin-top: 10px; }

/* ---------- side panels (wide screens) ---------- */
.so-side { display: none; }
.so-side-h { margin: 0 0 12px; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.8; }
.so-fighter { display: flex; gap: 14px; padding: 14px; border-radius: 16px; margin-bottom: 14px; }
.so-fighter.is-player { background: linear-gradient(135deg, rgba(215,38,47,0.32), rgba(215,38,47,0.08)); border: 1px solid rgba(215,38,47,0.7); }
.so-fighter.is-opponent { background: linear-gradient(135deg, rgba(20,20,22,0.95), rgba(48,38,16,0.6)); border: 1px solid var(--so-gold); }
.so-mono { flex: none; width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; font-weight: 900; font-style: italic; font-size: 20px; }
.is-player .so-mono { background: var(--so-red); }
.is-opponent .so-mono { background: #0e0e10; color: var(--so-gold); border: 2px solid var(--so-gold); }
.so-fighter-role { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.8; }
.is-opponent .so-fighter-role { color: var(--so-gold); }
.so-fighter-name { margin: 2px 0 6px; font-size: 18px; font-weight: 900; font-style: italic; text-transform: uppercase; }
.so-fighter-bio { margin: 0; font-size: 13px; line-height: 1.45; opacity: 0.9; }
.so-ladder { list-style: none; margin: 0 0 22px; padding: 0; display: flex; flex-direction: column; gap: 3px; }
.so-rung { display: flex; justify-content: space-between; padding: 4px 12px; border-radius: 8px; font-size: 14px; font-variant-numeric: tabular-nums; background: rgba(255,255,255,0.04); }
.so-rung-n { opacity: 0.6; }
.so-rung-x { font-weight: 800; }
.so-rung.is-done { background: rgba(215,38,47,0.25); }
.so-rung.is-next { background: var(--so-chalk); color: var(--so-ink); }
.so-history { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.so-hist, .so-hist-empty { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; padding: 6px 10px; border-radius: 8px; background: rgba(255,255,255,0.04); }
.so-hist.is-ko .so-hist-b { opacity: 0.6; }
.so-hist.is-cash .so-hist-b, .so-hist.is-clear .so-hist-b { color: var(--so-gold); font-weight: 800; }

@media (min-aspect-ratio: 5/4) and (min-width: 900px) {
  .so-root { display: grid; grid-template-columns: 1fr min(calc(100vh * 9 / 16), 46vw) 1fr; background:
    radial-gradient(circle at 20% 20%, rgba(215,38,47,0.18), transparent 50%), radial-gradient(circle at 80% 80%, rgba(227,180,90,0.12), transparent 50%), var(--so-ink); }
  .so-stage { position: relative; inset: auto; grid-column: 2; height: 100vh; box-shadow: 0 0 60px rgba(0,0,0,0.8); }
  .so-side { display: block; overflow-y: auto; padding: 28px 28px; }
  .so-left { grid-column: 1; grid-row: 1; }
  .so-right { grid-column: 3; grid-row: 1; }
  .so-root.is-splash .so-side, .so-root.is-intro .so-side { visibility: hidden; }
}
@media (max-height: 680px) {
  .so-mult { font-size: 28px; }
  .so-slap { min-height: 56px; }
  .so-hud { gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .so-callout.is-on { animation-duration: 1.2s; }
  .so-root.is-shake .so-screen { animation: none; }
}