/* Hack112 Arena — design system */
:root {
  --bg: #0b1020; --bg-2: #0f1629; --surface: #131c33; --surface-2: #182340; --border: rgba(255,255,255,.08); --border-strong: rgba(255,255,255,.16);
  --text: #e8edf7; --muted: #8b96ad; --faint: #5b6680;
  --accent: #38bdf8; --accent-ink: #06202e; --good: #a3e635; --warn: #facc15; --bad: #fb7185; --pink: #f472b6; --orange: #fb923c; --violet: #c084fc;
  --radius: 14px; --radius-sm: 9px; --shadow: 0 10px 40px rgba(0,0,0,.35);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.5;
  background-image: radial-gradient(1200px 600px at 10% -10%, rgba(56,189,248,.10), transparent 60%), radial-gradient(900px 500px at 100% 0%, rgba(244,114,182,.07), transparent 55%);
  background-attachment: fixed; }
a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 .5rem; font-weight: 700; letter-spacing: -.01em; line-height: 1.2; }
h1 { font-size: 1.9rem; } h2 { font-size: 1.3rem; } h3 { font-size: 1.05rem; } h4 { font-size: .9rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
p { margin: 0 0 .75rem; }
.muted { color: var(--muted); } .faint { color: var(--faint); } .mono { font-family: var(--mono); font-size: .9em; } .small { font-size: .85rem; }
.error { color: var(--bad); } .good { color: var(--good); } .warn { color: var(--warn); }
code, pre { font-family: var(--mono); }
pre { background: #0a0f1d; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .8rem 1rem; overflow: auto; font-size: .82rem; line-height: 1.55; }
code { background: rgba(255,255,255,.06); padding: .1em .35em; border-radius: 5px; font-size: .88em; }
pre code { background: none; padding: 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.2rem 0; }

/* layout */
.page-center { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 2rem 1rem; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 1.25rem; }
.topbar { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); background: rgba(11,16,32,.75); border-bottom: 1px solid var(--border); }
.topbar .container { display: flex; align-items: center; gap: 1.25rem; height: 60px; }
.topbar nav { display: flex; gap: .25rem; margin-left: .5rem; }
.topbar nav a { color: var(--muted); padding: .45rem .75rem; border-radius: 8px; font-weight: 500; font-size: .92rem; }
.topbar nav a:hover { color: var(--text); background: rgba(255,255,255,.05); text-decoration: none; }
.topbar nav a.active { color: var(--text); background: rgba(56,189,248,.12); }
.topbar .spacer { flex: 1; }
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 800; letter-spacing: -.02em; font-size: 1.05rem; color: var(--text); }
.brand-mark { width: 22px; height: 22px; border-radius: 6px; background: conic-gradient(from 90deg, var(--accent), var(--pink), var(--good), var(--orange), var(--accent)); box-shadow: 0 0 18px rgba(56,189,248,.5); }
.main { padding: 1.75rem 0 4rem; }
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); } .grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); } .grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 1.25rem; }
@media (max-width: 1000px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); } .split { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .topbar nav { display: none; } }
.row { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.stack { display: flex; flex-direction: column; gap: .75rem; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); }
.card.flat { box-shadow: none; } .card.tight { padding: .9rem 1rem; }
.card-title { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .9rem; }
.card-title h2, .card-title h3 { margin: 0; }
.stat { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .8rem 1rem; }
.stat .label { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.stat .value { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; font-family: var(--mono); }

/* buttons & forms */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong); border-radius: 10px; padding: .55rem 1rem; font: inherit; font-weight: 600; font-size: .9rem; cursor: pointer; transition: .15s; white-space: nowrap; }
.btn:hover { background: #1f2c4f; border-color: rgba(255,255,255,.25); text-decoration: none; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; } .btn-primary:hover { background: #5ccbfa; }
.btn-danger { background: rgba(251,113,133,.12); color: var(--bad); border-color: rgba(251,113,133,.35); } .btn-danger:hover { background: rgba(251,113,133,.22); }
.btn-good { background: rgba(163,230,53,.14); color: var(--good); border-color: rgba(163,230,53,.35); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); } .btn-ghost:hover { color: var(--text); background: rgba(255,255,255,.05); }
.btn-sm { padding: .35rem .65rem; font-size: .8rem; border-radius: 8px; } .btn-lg { padding: .8rem 1.4rem; font-size: 1rem; border-radius: 12px; }
.btn-block { width: 100%; }
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .75rem; }
label.check { display: flex; align-items: center; gap: .5rem; } label.check input { width: auto; }
input[type=text], input[type=password], input[type=number], input[type=search], select, textarea { width: 100%; margin-top: .3rem; background: #0a0f1d; color: var(--text); border: 1px solid var(--border-strong); border-radius: 9px; padding: .6rem .75rem; font: inherit; font-size: .95rem; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(56,189,248,.45); outline-offset: 1px; border-color: var(--accent); }
input.code { font-family: var(--mono); letter-spacing: .25em; text-transform: uppercase; font-size: 1.3rem; text-align: center; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2rem; }
.inline-field { display: inline-flex; align-items: center; gap: .4rem; } .inline-field input, .inline-field select { width: auto; margin: 0; }

/* badges / pills */
.badge { display: inline-flex; align-items: center; gap: .35rem; padding: .18rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; background: rgba(255,255,255,.07); color: var(--muted); border: 1px solid var(--border); }
.badge.accent { background: rgba(56,189,248,.14); color: var(--accent); border-color: rgba(56,189,248,.3); }
.badge.good { background: rgba(163,230,53,.14); color: var(--good); border-color: rgba(163,230,53,.3); }
.badge.warn { background: rgba(250,204,21,.14); color: var(--warn); border-color: rgba(250,204,21,.3); }
.badge.bad { background: rgba(251,113,133,.14); color: var(--bad); border-color: rgba(251,113,133,.3); }
.badge.live::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; animation: pulse 1.2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .25 } }
.pill { display: inline-flex; align-items: center; gap: .5rem; padding: .35rem .75rem; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); font-size: .85rem; }
.countdown { font-family: var(--mono); font-weight: 700; font-variant-numeric: tabular-nums; }
.countdown.urgent { color: var(--bad); animation: pulse 1s infinite; }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }

/* tabs */
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; overflow-x: auto; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); padding: .7rem 1rem; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.tabs button:hover { color: var(--text); } .tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
.tab-pane { display: none; } .tab-pane.active { display: block; }

/* tables */
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .6rem .7rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: 0; } tr.me td { background: rgba(56,189,248,.07); }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }
.delta-pos { color: var(--good); } .delta-neg { color: var(--bad); } .delta-zero { color: var(--muted); }

/* game cards */
.game-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1rem 1rem 1.1rem; overflow: hidden; display: flex; flex-direction: column; gap: .6rem; }
.game-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--accent-color, var(--accent)); }
.game-card.mine { border-color: var(--accent-color, var(--accent)); box-shadow: 0 0 0 1px var(--accent-color, var(--accent)), 0 10px 30px rgba(0,0,0,.3); }
.game-card .gc-head { display: flex; justify-content: space-between; align-items: flex-start; gap: .5rem; }
.game-card .gc-name { font-weight: 800; font-size: 1.05rem; } .game-card .gc-tag { color: var(--muted); font-size: .85rem; }
.game-card .gc-econ { display: flex; gap: .5rem; flex-wrap: wrap; font-size: .8rem; }
.game-card .gc-econ span { background: rgba(255,255,255,.05); border: 1px solid var(--border); border-radius: 7px; padding: .15rem .5rem; font-family: var(--mono); }
.slots { display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; }
.slot { height: 34px; border-radius: 8px; border: 1px dashed var(--border-strong); display: flex; align-items: center; justify-content: center; font-size: .75rem; color: var(--faint); padding: 0 .35rem; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.slot.filled { border-style: solid; background: rgba(255,255,255,.06); color: var(--text); font-weight: 600; }
.slot.house { color: var(--muted); font-style: italic; }

/* editor */
.editor-wrap { border: 1px solid var(--border-strong); border-radius: var(--radius-sm); overflow: hidden; background: #0a0f1d; }
.editor-bar { display: flex; align-items: center; gap: .6rem; padding: .45rem .7rem; background: var(--surface-2); border-bottom: 1px solid var(--border); font-size: .82rem; }
.editor-bar .file { font-family: var(--mono); color: var(--text); }
.editor-wrap .CodeMirror { height: 600px; font-family: var(--mono); font-size: 13px; line-height: 1.5; }
.editor-wrap .CodeMirror.cm-s-material-darker { background: #0a0f1d; }
.console { background: #070b16; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .6rem .8rem; font-family: var(--mono); font-size: .78rem; height: 170px; overflow: auto; white-space: pre-wrap; color: #cbd5e1; }
.console .err { color: var(--bad); } .console .sys { color: var(--muted); } .console .p1 { color: var(--accent); } .console .p2 { color: var(--pink); } .console .p3 { color: var(--good); } .console .p4 { color: var(--orange); }

/* replay player */
.replay-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 1rem; align-items: start; }
.replay-canvas-box canvas { display: block; border-radius: 10px; border: 1px solid var(--border-strong); box-shadow: 0 0 40px rgba(56,189,248,.08); max-width: 100%; }
.replay-side { font-size: .85rem; display: flex; flex-direction: column; gap: .3rem; }
.replay-row { display: flex; align-items: center; gap: .5rem; padding: .35rem .5rem; border-radius: 7px; background: rgba(255,255,255,.04); }
.replay-row .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } .replay-row.dead { opacity: .45; text-decoration: line-through; }
.replay-row .place { font-family: var(--mono); color: var(--muted); width: 1.6rem; }
.replay-events { margin-top: .5rem; display: flex; flex-direction: column; gap: .25rem; }
.replay-events .ev { font-size: .78rem; padding: .25rem .5rem; border-radius: 6px; background: rgba(255,255,255,.04); }
.ev-death { color: var(--bad); } .ev-capture { color: var(--good); }
.replay-final { margin-top: .75rem; border-top: 1px solid var(--border); padding-top: .5rem; }
.replay-final-title { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: .35rem; }
.replay-controls { display: flex; align-items: center; gap: .6rem; margin-top: .75rem; }
.replay-controls .replay-scrub { flex: 1; margin: 0; accent-color: var(--accent); }
.replay-controls select { width: auto; margin: 0; padding: .3rem 1.8rem .3rem .5rem; font-size: .8rem; }
@media (max-width: 760px) { .replay-wrap { grid-template-columns: 1fr; } }

/* misc */
.toast-host { position: fixed; right: 1rem; bottom: 1rem; display: flex; flex-direction: column; gap: .5rem; z-index: 200; }
.toast { background: var(--surface-2); border: 1px solid var(--border-strong); border-left: 4px solid var(--accent); border-radius: 10px; padding: .7rem 1rem; box-shadow: var(--shadow); max-width: 360px; animation: slidein .2s ease-out; font-size: .9rem; }
.toast.bad { border-left-color: var(--bad); } .toast.good { border-left-color: var(--good); }
@keyframes slidein { from { transform: translateY(8px); opacity: 0 } to { transform: none; opacity: 1 } }
.modal-back { position: fixed; inset: 0; background: rgba(3,6,14,.72); backdrop-filter: blur(4px); z-index: 150; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.modal { background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius); box-shadow: var(--shadow); width: min(1000px, 100%); max-height: 92vh; overflow: auto; padding: 1.25rem; }
.modal .card-title { position: sticky; top: -1.25rem; background: var(--surface); padding-top: .25rem; z-index: 2; }
.announce { background: linear-gradient(90deg, rgba(250,204,21,.15), rgba(250,204,21,.04)); border: 1px solid rgba(250,204,21,.35); color: #fde68a; border-radius: var(--radius-sm); padding: .7rem 1rem; margin-bottom: 1rem; font-weight: 500; }
.feed { display: flex; flex-direction: column; gap: .4rem; font-size: .88rem; }
.feed .item { display: flex; gap: .6rem; padding: .4rem .6rem; border-radius: 8px; background: rgba(255,255,255,.035); }
.feed .time { color: var(--faint); font-family: var(--mono); font-size: .75rem; white-space: nowrap; padding-top: .1rem; }
.kbd { font-family: var(--mono); font-size: .75rem; background: rgba(255,255,255,.08); border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 5px; padding: .05rem .35rem; }
.empty { color: var(--faint); text-align: center; padding: 2rem 1rem; border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); }
.hero { padding: 3.5rem 0 2.5rem; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -.03em; line-height: 1.05; margin-bottom: 1rem; }
.hero .lede { font-size: 1.15rem; color: var(--muted); max-width: 640px; }
.eyebrow { font-size: .75rem; text-transform: uppercase; letter-spacing: .14em; color: var(--accent); font-weight: 700; margin-bottom: .75rem; }
.step { display: flex; gap: .9rem; } .step .n { width: 30px; height: 30px; flex: 0 0 30px; border-radius: 50%; background: rgba(56,189,248,.14); color: var(--accent); display: flex; align-items: center; justify-content: center; font-weight: 800; font-family: var(--mono); }
.progress { height: 8px; border-radius: 999px; background: rgba(255,255,255,.07); overflow: hidden; } .progress > div { height: 100%; background: var(--accent); transition: width .3s; }
.bot-status { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: .5rem; }
.bot-status .b { padding: .5rem .65rem; border-radius: 8px; background: rgba(255,255,255,.04); font-size: .8rem; border-left: 3px solid var(--border-strong); }
.bot-status .b.ok { border-left-color: var(--good); } .bot-status .b.crashed, .bot-status .b.timeout { border-left-color: var(--bad); }

/* bracket */
.bracket { display: flex; gap: 2rem; overflow-x: auto; padding-bottom: .5rem; }
.bracket-stage { min-width: 240px; display: flex; flex-direction: column; gap: 1rem; justify-content: space-around; }
.bracket-stage h4 { text-align: center; }
.bracket-match { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .6rem .75rem; }
.bracket-match .t { display: flex; justify-content: space-between; gap: .5rem; padding: .25rem 0; font-size: .88rem; border-bottom: 1px solid var(--border); }
.bracket-match .t:last-child { border-bottom: 0; } .bracket-match .t.adv { color: var(--good); font-weight: 700; } .bracket-match .t.out { opacity: .5; }
.bracket-match .label { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: .3rem; }
.champion { text-align: center; padding: 1.5rem; border-radius: var(--radius); background: linear-gradient(135deg, rgba(250,204,21,.18), rgba(251,146,60,.08)); border: 1px solid rgba(250,204,21,.4); }
.champion .name { font-size: 2rem; font-weight: 900; letter-spacing: -.02em; }

/* board (projector) */
body.board { font-size: 17px; }
.board-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.5rem; }
.board .lb-row { display: grid; grid-template-columns: 2.4rem 1fr auto; gap: .75rem; align-items: center; padding: .55rem .8rem; border-radius: 10px; background: rgba(255,255,255,.035); margin-bottom: .35rem; transition: background .4s; }
.board .lb-row .seed { font-family: var(--mono); color: var(--muted); font-weight: 700; } .board .lb-row .pts { font-family: var(--mono); font-weight: 800; font-size: 1.15rem; }
.board .lb-row.top1 { background: rgba(250,204,21,.14); } .board .lb-row.top2 { background: rgba(203,213,225,.12); } .board .lb-row.top3 { background: rgba(251,146,60,.12); }
.board .big-timer { font-family: var(--mono); font-size: 3.2rem; font-weight: 800; letter-spacing: -.03em; line-height: 1; }
@media (max-width: 1000px) { .board-grid { grid-template-columns: 1fr; } }

/* print join codes */
.codes-print { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; }
.code-card { border: 1px solid var(--border-strong); border-radius: 10px; padding: .75rem; text-align: center; }
.code-card .c { font-family: var(--mono); font-size: 1.5rem; letter-spacing: .2em; font-weight: 800; }
@media print { body { background: #fff; color: #000; } .no-print, .topbar { display: none !important; } .codes-print { grid-template-columns: repeat(3, 1fr); } .code-card { border-color: #000; break-inside: avoid; } .card { box-shadow: none; border-color: #000; background: #fff; } }