/* Fleet Clash — theme tokens switch with body[data-tod="day"|"night"] */
:root { --radius: 16px; --font: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
body[data-tod="day"] {
  --bg1: #dff2ff; --bg2: #f7fbff; --card: #ffffff; --card2: #f1f6fb; --ink: #14233a; --muted: #5b6b82; --line: #d5e1ee;
  --accent: #2f7bff; --accent-ink: #fff; --go1: #22c55e; --go2: #16a34a; --warn: #e5484d; --ok-ink: #0a7a3a; --bad-bg: #ffd9db; --bad-ink: #b4232a;
  --pass-bg: #ffffff; --pass-ink: #8a97aa; --typed: #0f7b3d; --cursor: #2f7bff; --shadow: 0 8px 28px rgba(31, 70, 120, .14);
  color-scheme: light;
}
body[data-tod="night"] {
  --bg1: #060a1c; --bg2: #101a3a; --card: #141f3f; --card2: #0e1730; --ink: #e8eefc; --muted: #93a3c7; --line: #26365f;
  --accent: #6aa6ff; --accent-ink: #061030; --go1: #2fd16d; --go2: #1aa551; --warn: #ff6b72; --ok-ink: #62e39a; --bad-bg: #5a1d27; --bad-ink: #ffb3b8;
  --pass-bg: #0c1530; --pass-ink: #7283ab; --typed: #5ee39a; --cursor: #ffd86b; --shadow: 0 10px 34px rgba(0, 0, 0, .5);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--ink); min-height: 100vh; min-height: 100dvh;
  background: radial-gradient(1200px 600px at 80% -10%, var(--bg2), transparent 70%), linear-gradient(180deg, var(--bg1), var(--bg2));
  background-attachment: fixed; transition: background .4s, color .3s; overflow-x: hidden;
}
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* header */
.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top)); max-width: 1100px; margin: 0 auto; }
.back { color: var(--muted); text-decoration: none; font-weight: 600; font-size: .9rem; padding: 8px 10px; border-radius: 10px; white-space: nowrap; }
.back:hover { background: var(--card); color: var(--ink); }
.brand { margin: 0; font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; flex: 1; text-align: center; }
.brand span { color: var(--accent); }
.tools { display: flex; gap: 8px; align-items: center; }
.seg { display: inline-flex; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 3px; box-shadow: var(--shadow); }
.seg button { border: 0; background: transparent; padding: 6px 10px; border-radius: 999px; display: inline-flex; gap: 5px; align-items: center; font-size: .8rem; font-weight: 600; color: var(--muted); min-height: 36px; }
.seg button i { font-style: normal; }
.seg button[aria-checked="true"] { background: var(--accent); color: var(--accent-ink); }
.icon-btn { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow); font-size: 1.1rem; }
.icon-btn[aria-pressed="false"] { opacity: .55; }

main { max-width: 1100px; margin: 0 auto; padding: 8px 16px 40px; }
.screen[hidden] { display: none; }

/* cards + form bits */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); transition: background .4s; }
.card h2 { margin: 0 0 12px; font-size: 1.05rem; }
.menu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.label { font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 14px 0 6px; }
.field { display: block; }
.field span { font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 6px; }
.field em { text-transform: none; letter-spacing: 0; font-weight: 400; }
input[type="text"] { width: 100%; padding: 12px 14px; border-radius: 12px; border: 2px solid var(--line); background: var(--card2); font-size: 1rem; min-height: 46px; }
input[type="text"]:focus { border-color: var(--accent); outline: none; }
.hint { color: var(--muted); font-size: .88rem; margin: 10px 0 0; line-height: 1.5; }
.err { color: var(--bad-ink); background: var(--bad-bg); padding: 10px 12px; border-radius: 10px; font-size: .9rem; margin: 12px 0 0; }

.btn { border: 0; border-radius: 14px; padding: 13px 20px; font-weight: 700; font-size: 1rem; min-height: 48px; background: var(--accent); color: var(--accent-ink); transition: transform .08s, filter .15s; }
.btn:hover:not(:disabled) { filter: brightness(1.08); }
.btn:active:not(:disabled) { transform: translateY(1px) scale(.99); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.go { background: linear-gradient(180deg, var(--go1), var(--go2)); color: #fff; width: 100%; margin-top: 18px; box-shadow: 0 6px 18px rgba(34, 197, 94, .35); }
.btn.alt { background: var(--card2); color: var(--ink); border: 2px solid var(--line); }
.btn.ghost { background: transparent; color: var(--muted); border: 2px solid var(--line); }
.btn.small { min-height: 40px; padding: 8px 14px; font-size: .9rem; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips button { border: 2px solid var(--line); background: var(--card2); border-radius: 999px; padding: 8px 14px; font-weight: 600; font-size: .88rem; min-height: 40px; color: var(--ink); }
.chips button[aria-checked="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chips.locked button { pointer-events: none; opacity: .75; }

.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; background: var(--card2); padding: 4px; border-radius: 14px; margin-bottom: 4px; }
.tabs button { border: 0; background: transparent; border-radius: 11px; padding: 10px 6px; font-weight: 700; font-size: .92rem; min-height: 44px; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--card); color: var(--ink); box-shadow: 0 2px 8px rgba(0, 0, 0, .15); }
.or { text-align: center; margin: 16px 0 12px; position: relative; color: var(--muted); font-size: .8rem; }
.or::before { content: ''; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px solid var(--line); }
.or span { position: relative; background: var(--card); padding: 0 10px; }
.joinrow { display: flex; gap: 10px; }
.joinrow input { text-transform: uppercase; letter-spacing: .25em; font-weight: 800; text-align: center; font-size: 1.15rem; }
.joinrow .btn { min-width: 96px; }
.stats { text-align: center; color: var(--muted); font-size: .85rem; margin: 18px 0 0; min-height: 1.2em; }


.code { font-size: 2.6rem; font-weight: 800; letter-spacing: .22em; line-height: 1; color: var(--accent); font-variant-numeric: tabular-nums; }
/* results */
.modal { position: fixed; inset: 0; background: rgba(4, 8, 22, .62); display: grid; place-items: center; padding: 14px; z-index: 50; overflow-y: auto; }
.modal-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 20px; width: min(560px, 100%); box-shadow: var(--shadow); max-height: calc(100dvh - 28px); overflow-y: auto; }
.modal-card h2 { margin: 0; font-size: 1.5rem; }
.res-sub { margin: 4px 0 12px; color: var(--muted); font-size: .9rem; }
.res-mine { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 12px; }
.res-mine div { background: var(--card2); border-radius: 12px; padding: 10px 6px; text-align: center; }
.res-mine b { display: block; font-size: 1.6rem; font-variant-numeric: tabular-nums; }
.res-mine span { font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; }
.res-mine .pb { grid-column: 1 / -1; background: linear-gradient(90deg, #ffb400, #ff7a00); color: #2b1600; font-weight: 800; }
.res-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.res-table th { text-align: left; font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 4px 6px; }
.res-table td { padding: 9px 6px; border-top: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.res-table tr.me td { background: color-mix(in srgb, var(--accent) 16%, transparent); font-weight: 700; }
.res-table tr.wait td { color: var(--muted); }
.res-actions { display: flex; gap: 10px; margin-top: 14px; }
.res-actions .btn { margin-top: 0; }
.res-actions .btn.go { flex: 1; }

.toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); background: #111a33; color: #fff; padding: 11px 18px; border-radius: 12px; font-weight: 600; font-size: .92rem; z-index: 80; box-shadow: 0 8px 24px rgba(0, 0, 0, .4); max-width: calc(100vw - 32px); text-align: center; }


/* menu */
.hero-card h2 { font-size: 1.35rem; }
.menu-art { width: 100%; height: 150px; border-radius: 14px; display: block; margin: 12px 0 14px; background: #0b3a6b; }
.field { display: block; }
.res-emoji { font-size: 3rem; line-height: 1; }
.dots::after { content: ''; animation: dots 1.4s steps(4, end) infinite; }
@keyframes dots { 0% { content: ''; } 25% { content: '.'; } 50% { content: '..'; } 75% { content: '...'; } }
.wait { max-width: 520px; margin: 24px auto; text-align: center; }
.wait .label { margin-top: 0; }
.wait .code { margin: 6px 0 12px; }
.wait-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }

/* boards */
.board-box { min-width: 0; }
.board-title { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin: 0 2px 6px; flex-wrap: wrap; }
.board-title b { font-size: 1.05rem; }
.board-title .sub { font-size: .8rem; color: var(--muted); }
.board { display: block; width: 100%; aspect-ratio: 1; border-radius: 16px; box-shadow: var(--shadow); border: 1px solid var(--line); background: var(--card2); touch-action: none; user-select: none; -webkit-user-select: none; }
.place-grid { display: grid; grid-template-columns: minmax(0, 520px) minmax(260px, 340px); gap: 22px; justify-content: center; align-items: start; }
.tray-card { position: sticky; top: 10px; }
.tray { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ship-chip { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border: 2px solid var(--line); border-radius: 12px; background: var(--card2); touch-action: none; cursor: grab; user-select: none; -webkit-user-select: none; min-height: 52px; }
.ship-chip canvas { width: 96px; height: 28px; flex: none; }
.ship-chip .nm { font-weight: 700; font-size: .92rem; line-height: 1.15; }
.ship-chip .sz { font-size: .75rem; color: var(--muted); font-weight: 400; display: block; }
.ship-chip.placed { opacity: .5; }
.ship-chip.placed .nm::after { content: ' ✓'; color: var(--ok-ink); }
.ship-chip.sel { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 30%, transparent); opacity: 1; }
.tray-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.tray-actions .btn { flex: 1 1 auto; }
kbd { font: inherit; font-size: .72rem; border: 1px solid var(--line); border-radius: 5px; padding: 0 5px; margin-left: 4px; background: var(--card); }
#quitPlace { margin-top: 10px; width: 100%; }

.status-bar { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; margin: 4px 0 10px; }
.status { text-align: center; font-weight: 800; font-size: clamp(1rem, 3.4vw, 1.35rem); padding: 8px 12px; border-radius: 14px; background: var(--card); border: 2px solid var(--line); min-height: 48px; display: grid; place-items: center; }
.status.you { border-color: var(--accent); color: var(--accent); }
.status.hit { border-color: #ff6a3d; }
.status .tiny { font-size: .78rem; font-weight: 600; color: var(--muted); display: block; }
.status-bar .btn.go { margin-top: 0; width: auto; min-width: 96px; }
.battle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; max-width: 960px; margin: 0 auto; }
.battle-grid .board { max-width: 440px; margin-inline: auto; }
.battle-grid .board-title, .battle-grid .fleet-track { max-width: 440px; margin-inline: auto; }
.board-box.enemy .board { cursor: crosshair; }
.board-box.enemy.armed .board { box-shadow: 0 0 0 3px var(--accent), var(--shadow); }
.fleet-track { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.fleet-track li { display: inline-flex; align-items: center; gap: 6px; font-size: .74rem; font-weight: 600; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 3px 9px; }
.fleet-track .pips { display: inline-flex; gap: 2px; }
.fleet-track .pip { width: 8px; height: 8px; border-radius: 2px; background: var(--muted); opacity: .55; }
.fleet-track .pip.hit { background: #ff5a3c; opacity: 1; }
.fleet-track li.sunk { text-decoration: line-through; color: var(--muted); border-color: #ff5a3c; }
.log { text-align: center; color: var(--muted); font-size: .88rem; min-height: 1.3em; margin: 10px 0 0; }

@media (hover: hover) and (pointer: fine) { #fireBtn { display: none; } .status-bar { grid-template-columns: auto 1fr; } }
@media (max-width: 760px) {
  .menu-grid { grid-template-columns: 1fr; }
  .top { padding-inline: 10px; gap: 6px; flex-wrap: wrap; }
  .brand { flex: 1 1 auto; text-align: left; font-size: 1.3rem; }
  .seg button b { display: none; }
  .seg button { padding: 6px 12px; }
  .code { font-size: 2.1rem; }
  main { padding-inline: 10px; }
  .place-grid { grid-template-columns: 1fr; gap: 12px; }
  .tray-card { position: static; }
  .tray { grid-template-columns: 1fr 1fr; }
  .battle-grid { grid-template-columns: 1fr; gap: 12px; }
  .board-box.mine .board { max-width: 300px; margin: 0 auto; }
  .board-box.mine .board-title, .board-box.mine .fleet-track { max-width: 300px; margin-inline: auto; }
}
@media (max-width: 420px) { .tray { grid-template-columns: 1fr; } .status-bar { grid-template-columns: auto 1fr; } .status-bar .btn.go { grid-column: 1 / -1; } }
@media (prefers-reduced-motion: reduce) { * { animation-duration: .01ms !important; transition-duration: .01ms !important; } }