:root{
  --bg:#07090f; --bg-soft:#0a0d18; --panel:#0f1629; --panel-2:#151c31; --panel-3:#0b101d;
  --text:#f0f2ff; --muted:#7a86a8;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.14);
  --accent:#5865f2; --accent-2:#7c3aed; --glow:rgba(88,101,242,.35);
  --danger:#ff6b6b; --success:#23d18b; --warning:#f3bd4c; --cyan:#4da3ff;
  --shadow:0 22px 70px rgba(0,0,0,.42);
}
*{box-sizing:border-box}
body{margin:0;background:radial-gradient(1200px 600px at 70% -10%,rgba(88,101,242,.12),transparent),var(--bg);
  color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.5}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0 0 .4em}
.muted{color:var(--muted);font-size:.9rem;margin:.2rem 0 1rem}

/* header */
.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:1.5rem;
  padding:.8rem 1.5rem;background:rgba(8,9,17,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{font-weight:800;font-size:1.15rem;letter-spacing:.5px}
.brand-a{color:var(--text)}.brand-b{color:var(--accent)}
.site-nav{display:flex;gap:1.2rem;font-size:.9rem;color:var(--muted)}
.site-nav a.active,.site-nav a:hover{color:var(--text)}
.badge{margin-left:auto;font-size:.75rem;padding:.35rem .7rem;border-radius:999px;border:1px solid var(--line-strong)}
.badge.free{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#fff;border:0}

/* intro */
.intro{max-width:1180px;margin:2.2rem auto 1rem;padding:0 1.5rem}
.eyebrow{color:var(--accent);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.14em;margin:0}
.intro h1{font-size:2.1rem;line-height:1.15}
.intro .hl{background:linear-gradient(90deg,var(--cyan),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.intro .sub{color:var(--muted);max-width:640px}
.feature-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem;margin-top:1.4rem}
.fcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:.9rem}
.fcard b{display:block;margin:.3rem 0 .2rem}
.fcard small{color:var(--muted)}
.tick{font-size:.72rem;color:var(--success);font-weight:700}

/* app layout */
.app{max-width:1180px;margin:1rem auto 2rem;padding:0 1.5rem;display:grid;grid-template-columns:1fr 320px;gap:1rem;align-items:start}
.app-left{display:flex;flex-direction:column;gap:1rem;min-width:0}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:1.1rem 1.2rem;box-shadow:var(--shadow)}

/* status */
.status{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.status-info{display:flex;align-items:center;gap:.9rem}
.pill{font-size:.72rem;font-weight:700;padding:.3rem .6rem;border-radius:999px;background:var(--panel-2);border:1px solid var(--line-strong);white-space:nowrap}
.pill.live{background:rgba(35,209,139,.15);color:var(--success);border-color:transparent}
.status-title{font-weight:700}
.status-sub{color:var(--muted);font-size:.85rem}
.status-actions{display:flex;align-items:center;gap:.5rem}
.battery{display:flex;align-items:center;gap:.4rem;font-size:.8rem;color:var(--muted)}
.bat-icon{width:26px;height:13px;border:1px solid var(--line-strong);border-radius:3px;padding:1px;display:inline-block;position:relative}
.bat-icon::after{content:"";position:absolute;right:-3px;top:3px;width:2px;height:5px;background:var(--line-strong)}
.bat-icon i{display:block;height:100%;width:80%;background:var(--success);border-radius:1px}

/* buttons */
.btn{cursor:pointer;border:1px solid var(--line-strong);background:var(--panel-2);color:var(--text);
  padding:.55rem .9rem;border-radius:10px;font-size:.88rem;font-weight:600;transition:.15s}
.btn:hover{border-color:var(--accent);box-shadow:0 0 0 3px var(--glow)}
.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;border-color:var(--line)}
.btn.ghost{background:transparent}
.btn.small{padding:.45rem .7rem;font-size:.82rem}
.btn.danger{border-color:rgba(255,107,107,.5);color:var(--danger)}
.btn.danger:hover{box-shadow:0 0 0 3px rgba(255,107,107,.2)}
#btnConnect{background:linear-gradient(90deg,var(--accent),var(--accent-2));border:0}
.row{display:flex;gap:.5rem;flex-wrap:wrap;margin:.6rem 0}

/* tabs */
.tabs{display:flex;gap:.3rem;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:.3rem}
.tab{flex:1;cursor:pointer;border:0;background:transparent;color:var(--muted);padding:.55rem;border-radius:9px;font-weight:600;font-size:.9rem}
.tab.active{background:var(--panel-2);color:var(--text)}
.tabpanel{display:none}
.tabpanel.active{display:block}

/* steps + progress */
.steps{display:flex;gap:.4rem;margin:.4rem 0}
.step{flex:1;text-align:center;font-size:.78rem;color:var(--muted);padding:.4rem;border-radius:8px;border:1px solid var(--line);background:var(--panel-3)}
.step.done{color:var(--success);border-color:rgba(35,209,139,.4)}
.step.active{color:var(--text);border-color:var(--accent);box-shadow:0 0 0 2px var(--glow)}
.progress{height:6px;background:var(--panel-3);border-radius:99px;overflow:hidden;margin:.5rem 0}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--cyan));transition:width .3s}

/* metrics + rings */
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:.7rem;margin:.8rem 0}
.metric{background:var(--panel-3);border:1px solid var(--line);border-radius:12px;padding:.7rem .9rem}
.metric label{display:block;color:var(--muted);font-size:.78rem}
.metric b{font-size:1.4rem}
.rings{display:flex;gap:1rem}
.rings figure{margin:0;text-align:center}
.rings figcaption{color:var(--muted);font-size:.78rem;margin-bottom:.3rem}
canvas{background:var(--panel-3);border:1px solid var(--line);border-radius:12px}

/* tune */
.tune-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.tune{background:var(--panel-3);border:1px solid var(--line);border-radius:14px;padding:.9rem}
.tune header{display:flex;justify-content:space-between;font-weight:700;margin-bottom:.6rem}
.tune .out{font-weight:400;color:var(--muted);font-size:.82rem}
.tune label{display:block;font-size:.82rem;color:var(--muted);margin:.7rem 0 .2rem}
.tune .v{float:right;color:var(--text);font-variant-numeric:tabular-nums}
input[type=range]{width:100%;accent-color:var(--accent)}
.presets{margin-top:.9rem;background:var(--panel-3);border:1px solid var(--line);border-radius:14px;padding:.9rem}
.preset-row{display:flex;gap:1rem;flex-wrap:wrap}
.preset-row label{font-size:.82rem;color:var(--muted);display:flex;flex-direction:column;gap:.3rem}
select{background:var(--panel-2);color:var(--text);border:1px solid var(--line-strong);border-radius:8px;padding:.4rem .6rem}
.preset-btns{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.8rem}

/* controller svg (daidr/dualsense-tester art, MIT) */
.pad-wrap{display:flex;justify-content:center;padding:.5rem}
#pad{width:100%;max-width:520px}
#pad .body{fill:var(--panel-2);stroke:var(--line-strong);stroke-width:4px}
#pad .body-line{fill:none;stroke:var(--line-strong);stroke-width:4px}
#pad .part{fill:#2a3350;stroke:rgba(255,255,255,.14);stroke-width:4px;transition:fill .06s}
#pad .part.on{fill:var(--accent)}
/* dpad is a <g>; style its outline child */
#pad .dpad .hit{fill:#2a3350;stroke:rgba(255,255,255,.14);stroke-width:4px;transition:fill .05s}
#pad .dpad.on .hit{fill:var(--accent)}
#pad .dpad .ind{fill:rgba(255,255,255,.5);stroke:none}
#pad .ind{pointer-events:none}
#pad .touchpad{fill:#1a2138}
#pad .touchpad.on{fill:var(--cyan)}
#pad .trigger.on{fill:var(--cyan)}
#pad .face.cross.on{fill:var(--cyan)}
#pad .face.circle.on{fill:var(--danger)}
#pad .face.triangle.on{fill:var(--success)}
#pad .face.square.on{fill:var(--accent-2)}
#pad .stick-base{fill:#1a2138;stroke:rgba(255,255,255,.12);stroke-width:4px}
#pad .stick{fill:#2a3350;stroke:rgba(255,255,255,.14);stroke-width:4px}
#pad #l3group,#pad #r3group{transition:transform .04s}
#pad .gl{fill:rgba(255,255,255,.5);font-size:40px;text-anchor:middle;pointer-events:none;font-family:sans-serif}

/* advanced */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin:.6rem 0}
.log{background:var(--panel-3);border:1px solid var(--line);border-radius:12px;padding:.6rem .8rem;
  height:150px;overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.78rem}
.log .line{padding:.1rem 0;border-bottom:1px solid rgba(255,255,255,.04)}
.log .ok{color:var(--success)}.log .warn{color:var(--warning)}.log .err{color:var(--danger)}
.log time{color:var(--muted);margin-right:.5rem}

/* save bar */
.savebar{display:flex;flex-direction:column;gap:.6rem;align-items:stretch}
.savebar-head{display:flex;gap:.4rem;align-items:baseline}
.backup-row{border-top:1px solid var(--line);padding-top:.6rem;margin:0}

/* stick map aside */
.stickmap{position:sticky;top:70px}
.maps{display:flex;flex-direction:column;gap:.8rem;align-items:center}
.maps figcaption{color:var(--muted);font-size:.78rem;text-align:center;margin-top:.3rem}
.maps figcaption span{display:block;font-variant-numeric:tabular-nums;color:var(--text)}
.facts{display:grid;grid-template-columns:auto auto;gap:.35rem 1rem;margin:1rem 0 0;font-size:.82rem}
.facts dt{color:var(--muted)}
.facts dd{margin:0;text-align:right;font-weight:600}
.restore-list{margin-top:.8rem;display:flex;flex-direction:column;gap:.35rem}
.rp{display:flex;justify-content:space-between;align-items:center;gap:.5rem;background:var(--panel-3);
  border:1px solid var(--line);border-radius:9px;padding:.4rem .6rem;font-size:.8rem}
.rp button{cursor:pointer;background:transparent;border:0;color:var(--muted);font-size:.9rem}
.rp button:hover{color:var(--text)}
.rp .load{color:var(--cyan)}

.site-footer{max-width:1180px;margin:0 auto;padding:2rem 1.5rem;color:var(--muted);font-size:.78rem;border-top:1px solid var(--line)}
.site-footer a{color:var(--cyan)}

@media(max-width:900px){
  .app{grid-template-columns:1fr}
  .feature-cards{grid-template-columns:1fr 1fr}
  .stickmap{position:static}
  .adv-grid{grid-template-columns:1fr 1fr}
}