/* ═══════════════════════════════════════════════════════════
   BuffMechanics · shared.css
   Common design tokens, resets, and UI patterns for all modules.
   Each module may override --accent / --accent-dim and add its own
   specific styles. Keep module-specific CSS in the module file.
   ═══════════════════════════════════════════════════════════ */

/* ── 1 · Design tokens ─────────────────────────────────────── */
:root{
    /* Base palette */
    --bg:#060608;
    --sf:#0c0c10;
    --sf2:#101016;
    --bd:#1a1a22;
    --bdl:#2a2a38;

    /* Text */
    --t1:#e8e8ec;
    --t2:#5a5a6e;
    --t3:#2a2a38;

    /* Semantic */
    --hit:#00ff88;
    --miss:#ff2255;
    --warn:#fbbf24;

    /* Category accents (used by index) */
    --mech:#ef4444;
    --mech-dim:rgba(239,68,68,.08);
    --cog:#3b82f6;
    --cog-dim:rgba(59,130,246,.08);

    /* Default module accent — each module overrides these */
    --accent:#00e5ff;
    --accent-dim:rgba(0,229,255,.12);
}

/* ── 2 · Reset & base ──────────────────────────────────────── */
*{margin:0;padding:0;box-sizing:border-box}
body{
    background:var(--bg);
    color:var(--t1);
    font-family:'Rajdhani',sans-serif;
    min-height:100vh;
    user-select:none;
}
.mono{font-family:'Space Mono',monospace}

/* Reduced motion — respect user preference */
@media (prefers-reduced-motion: reduce){
    *,*::before,*::after{
        animation-duration:.01ms !important;
        animation-iteration-count:1 !important;
        transition-duration:.01ms !important;
    }
}

/* ── 3 · Arena grid background utility ─────────────────────── */
.arena-grid{
    background-image:linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);
    background-size:60px 60px;
}

/* ── 4 · HUD ───────────────────────────────────────────────── */
.hud{
    position:fixed;top:0;left:0;right:0;height:52px;
    display:flex;align-items:center;justify-content:space-between;
    padding:0 20px;
    background:linear-gradient(180deg,rgba(6,6,8,.96) 60%,transparent);
    z-index:100;pointer-events:none;
    opacity:0;transition:opacity .3s;
}
.hud.on{opacity:1}
.hb{display:flex;flex-direction:column;gap:1px}
.hb.c{align-items:center}
.hb.r{align-items:flex-end}
.hl{
    font-family:'Space Mono',monospace;
    font-size:8px;font-weight:700;
    letter-spacing:.14em;text-transform:uppercase;
    color:var(--t2);
}
.hv{font-size:24px;font-weight:700;line-height:1;letter-spacing:-.5px}

/* Timer pill */
.tpill{
    background:var(--sf);border:1px solid var(--bd);border-radius:16px;
    padding:3px 16px;display:flex;align-items:center;gap:6px;
}
.tdot{
    width:5px;height:5px;border-radius:50%;background:var(--accent);
    animation:bm-pulse 1s infinite;
}
@keyframes bm-pulse{0%,100%{opacity:1}50%{opacity:.3}}

/* Lives (hearts) */
.lives{display:flex;gap:4px;align-items:center}
.heart{width:14px;height:14px;position:relative}
.heart::before,.heart::after{
    content:'';position:absolute;width:7px;height:11px;
    border-radius:7px 7px 0 0;background:var(--miss);
}
.heart::before{left:0;top:0;transform:rotate(-45deg);transform-origin:bottom right}
.heart::after{left:5px;top:0;transform:rotate(45deg);transform-origin:bottom left}
.heart.dead::before,.heart.dead::after{background:var(--t3)}

/* Compact lives variant (used by APM) */
.heart.sm{width:12px;height:12px}
.heart.sm::before,.heart.sm::after{width:6px;height:10px;border-radius:6px 6px 0 0}
.heart.sm::after{left:4.5px}

/* ── 5 · Streak bar ────────────────────────────────────────── */
.streak-wrap{
    position:fixed;bottom:16px;left:50%;transform:translateX(-50%);
    display:flex;align-items:center;gap:10px;z-index:100;
    pointer-events:none;opacity:0;transition:opacity .3s;
}
.streak-wrap.on{opacity:1}
.spips{display:flex;gap:2px}
.spip{
    width:2.5px;height:12px;background:var(--t3);border-radius:1px;
    transition:all .12s;
}
.spip.a{background:var(--accent);box-shadow:0 0 5px var(--accent);height:18px}
.spip.f{background:var(--warn);box-shadow:0 0 6px var(--warn);height:22px}
.slbl{
    font-family:'Space Mono',monospace;
    font-size:10px;font-weight:700;color:var(--t2);min-width:32px;
}

/* ── 6 · Crosshair ─────────────────────────────────────────── */
.xhair{
    position:fixed;pointer-events:none;z-index:999;
    transform:translate(-50%,-50%);display:none;
}
.xhair::before,.xhair::after{
    content:'';position:absolute;background:var(--accent);opacity:.9;
}
.xhair::before{width:18px;height:1.5px;top:50%;left:50%;transform:translate(-50%,-50%)}
.xhair::after{width:1.5px;height:18px;top:50%;left:50%;transform:translate(-50%,-50%)}
.xhair-dot{
    width:3px;height:3px;background:#fff;border-radius:50%;
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
}

/* ── 7 · Setup screen ──────────────────────────────────────── */
.setup{
    position:fixed;inset:0;background:var(--bg);z-index:200;
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    overflow-y:auto;padding:24px;gap:4px;
}
.setup.hide{display:none}

.setup-logo{
    font-family:'Space Mono',monospace;
    font-size:10px;font-weight:700;color:var(--accent);letter-spacing:.15em;
    border:2px solid var(--accent);padding:6px 14px;margin-bottom:20px;
}
.stitle{font-size:42px;font-weight:700;letter-spacing:-1px;text-align:center;line-height:1}
.stitle em{color:var(--accent);font-style:normal}
.ssub{
    font-family:'Space Mono',monospace;
    font-size:10px;color:var(--t2);letter-spacing:.2em;text-transform:uppercase;
    text-align:center;margin-top:6px;
}

/* Tabs */
.tabs{display:flex;gap:0;margin:28px 0 20px;border:1px solid var(--bd)}
.tab{
    padding:8px 24px;font-family:'Rajdhani',sans-serif;
    font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    cursor:pointer;color:var(--t2);background:transparent;border:none;
    transition:all .2s;
}
.tab:hover{color:var(--t1)}
.tab.on{color:var(--accent);background:var(--accent-dim)}

/* Panels */
.panel{display:none;width:100%;max-width:520px}
.panel.on{display:block}

/* Panel groups */
.pgroup{margin-bottom:16px}
.plabel{
    font-family:'Space Mono',monospace;
    font-size:9px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
    color:var(--t2);margin-bottom:6px;
}
.pbtn-row{display:flex;gap:6px;flex-wrap:wrap}
.pb{
    background:var(--sf);border:1px solid var(--bd);color:var(--t2);
    padding:7px 16px;font-family:'Rajdhani',sans-serif;
    font-size:13px;font-weight:700;cursor:pointer;letter-spacing:.04em;
    transition:all .15s;
}
.pb:hover{border-color:var(--t2);color:var(--t1)}
.pb.on{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}

/* Checkbox style */
.pcheck{
    display:flex;align-items:center;gap:8px;cursor:pointer;
    padding:6px 12px;background:var(--sf);border:1px solid var(--bd);
    transition:all .15s;margin-bottom:4px;
}
.pcheck:hover{border-color:var(--bdl)}
.pcheck.on{border-color:var(--accent);background:var(--accent-dim)}
.pcheck .box{
    width:14px;height:14px;border:1.5px solid var(--t2);
    display:flex;align-items:center;justify-content:center;
    font-size:10px;color:var(--accent);transition:all .15s;
}
.pcheck.on .box{border-color:var(--accent)}
.pcheck span{font-size:12px;font-weight:600;color:var(--t2);letter-spacing:.03em}
.pcheck.on span{color:var(--t1)}
.pcheck-desc{
    font-family:'Space Mono',monospace;
    font-size:9px;color:var(--t3);margin:-2px 0 8px 0;padding-left:12px;
}

/* Slider */
.slider-wrap{display:flex;align-items:center;gap:12px}
.slider-val{
    font-family:'Space Mono',monospace;
    font-size:13px;font-weight:700;color:var(--accent);
    min-width:42px;text-align:center;
}
input[type=range]{
    -webkit-appearance:none;appearance:none;
    width:100%;height:3px;background:var(--bd);outline:none;border-radius:2px;
}
input[type=range]::-webkit-slider-thumb{
    -webkit-appearance:none;appearance:none;
    width:14px;height:14px;background:var(--accent);border-radius:50%;cursor:pointer;
}
input[type=range]::-moz-range-thumb{
    width:14px;height:14px;background:var(--accent);border-radius:50%;cursor:pointer;border:none;
}

/* Start button */
.gobtn{
    width:100%;max-width:520px;padding:14px;
    background:var(--accent);border:none;color:var(--bg);
    font-family:'Rajdhani',sans-serif;
    font-size:16px;font-weight:700;letter-spacing:.2em;cursor:pointer;
    transition:all .2s;margin-top:8px;
}
.gobtn:hover{background:#fff;box-shadow:0 0 24px var(--accent-dim)}
.gobtn.alt{background:var(--miss)}
.gobtn.alt:hover{background:#fff;color:var(--miss)}

.hint{
    font-family:'Space Mono',monospace;
    font-size:9px;color:var(--t3);margin-top:12px;text-align:center;
}

/* Sound toggle */
.snd-toggle{
    position:absolute;top:16px;right:16px;
    background:none;border:1px solid var(--bd);color:var(--t2);
    font-family:'Space Mono',monospace;
    font-size:9px;padding:4px 10px;cursor:pointer;letter-spacing:.1em;z-index:201;
}
.snd-toggle:hover{color:var(--t1);border-color:var(--t2)}

/* ── 8 · Results screen ────────────────────────────────────── */
.res{
    position:fixed;inset:0;background:rgba(6,6,8,.96);backdrop-filter:blur(6px);
    z-index:200;display:flex;align-items:center;justify-content:center;
}
.res.hide{display:none}
.rcard{
    background:var(--sf);border:1px solid var(--bd);
    padding:36px;width:100%;max-width:440px;
}
.rgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.rcell{background:var(--bg);border:1px solid var(--bd);padding:14px;text-align:center}
.rcell .rv{font-size:28px;font-weight:700;line-height:1.1}
.rcell .rl{
    font-family:'Space Mono',monospace;
    font-size:8px;color:var(--t2);letter-spacing:.12em;text-transform:uppercase;margin-top:3px;
}
.rbtns{display:flex;gap:6px;margin-top:20px}
.rbtns button{
    flex:1;padding:11px;font-family:'Rajdhani',sans-serif;
    font-size:13px;font-weight:700;letter-spacing:.1em;
    cursor:pointer;border:1px solid var(--bd);transition:all .2s;
}
.rb-s{background:transparent;color:var(--t2)}
.rb-s:hover{border-color:var(--t2);color:var(--t1)}
.rb-m{background:transparent;color:var(--t2);border-color:var(--accent)}
.rb-m:hover{background:var(--accent-dim);color:var(--accent)}
.rb-p{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.rb-p:hover{background:#fff;border-color:#fff}

/* New-best badge */
.new-best{
    display:inline-block;margin-left:8px;padding:2px 8px;
    background:var(--warn);color:var(--bg);
    font-family:'Space Mono',monospace;
    font-size:8px;font-weight:700;letter-spacing:.1em;
    animation:bm-nb 1.6s ease infinite;
}
@keyframes bm-nb{0%,100%{opacity:1}50%{opacity:.5}}

/* ── 9 · Common fx ─────────────────────────────────────────── */
.fx-hit{
    position:absolute;border-radius:50%;transform:translate(-50%,-50%);
    pointer-events:none;z-index:30;border:2px solid var(--hit);
    animation:bm-burst .25s ease-out forwards;
}
@keyframes bm-burst{
    0%{width:8px;height:8px;opacity:1}
    100%{width:50px;height:50px;opacity:0}
}
.fx-score{
    position:absolute;transform:translate(-50%,-50%);pointer-events:none;z-index:30;
    font-family:'Space Mono',monospace;font-size:12px;font-weight:700;color:var(--hit);
    animation:bm-scoreup .5s ease-out forwards;
}
@keyframes bm-scoreup{
    0%{opacity:1;transform:translate(-50%,-50%)}
    100%{opacity:0;transform:translate(-50%,-120%)}
}
.fx-miss{
    position:absolute;transform:translate(-50%,-50%);pointer-events:none;z-index:30;
    font-size:16px;color:var(--miss);animation:bm-mfade .35s ease-out forwards;
}
@keyframes bm-mfade{
    0%{opacity:.8;transform:translate(-50%,-50%) scale(1)}
    100%{opacity:0;transform:translate(-50%,-70%) scale(.7)}
}

/* ── 10 · Generic loader ───────────────────────────────────── */
.bm-loader{
    position:fixed;inset:0;background:var(--bg);z-index:200;
    display:none;flex-direction:column;align-items:center;justify-content:center;
    opacity:0;transition:opacity .3s;
}
.bm-loader.active{display:flex;opacity:1}
.bm-spin{
    width:32px;height:32px;border:2px solid var(--bd);border-top-color:var(--t1);
    border-radius:50%;animation:bm-spin .6s linear infinite;margin-bottom:12px;
}
@keyframes bm-spin{to{transform:rotate(360deg)}}