/* Heat Seeker — VibeCode vertical flow + 3 mood themes (Tactical / Thermal / Cyber Lime).
   Same page anatomy as Robot Pet / Ticking Clock: hero title → theme picker →
   action rows → big video stage → settings panel → calibration tool. */

/* ===== Theme variables ===== */
:root,
[data-theme="tactical"] {
  --hot:#ff6b1a;
  --hot-deep:#c2410c;
  --hot-soft:rgba(255,107,26,.22);
  --hot-glow:rgba(255,107,26,.55);
  --lock:#22c55e;
  --warn:#ef4444;
  --bg:#0b0f1a;
  --panel:#101728;
  --panel-2:#0a0e1a;
  --border:rgba(255,107,26,.22);
  --fg:#e9edf5;
  --muted:rgba(255,255,255,.55);
  --hero-grad-1:rgba(255,107,26,0.18);
  --hero-grad-2:rgba(34,197,94,0.10);
  --hero-grad-3:rgba(255,209,102,0.08);
  --video-filter:none;
  --hero-font:'Russo One', sans-serif;
}
[data-theme="thermal"] {
  --hot:#ff3d8a;          /* hot magenta */
  --hot-deep:#a31a4f;
  --hot-soft:rgba(255,61,138,.22);
  --hot-glow:rgba(255,61,138,.6);
  --lock:#00f7ff;         /* cyan = locked-cold */
  --warn:#ffea00;         /* yellow alert (FLIR-style) */
  --bg:#020208;
  --panel:#0a0410;
  --panel-2:#050208;
  --border:rgba(255,61,138,.30);
  --fg:#ffeaf5;
  --muted:rgba(255,234,245,.55);
  --hero-grad-1:rgba(255,61,138,0.28);
  --hero-grad-2:rgba(0,247,255,0.18);
  --hero-grad-3:rgba(255,234,0,0.10);
  /* FLIR-style thermal look on the camera feed */
  --video-filter:contrast(1.4) saturate(2.6) hue-rotate(160deg) brightness(1.05);
  --hero-font:'Russo One', sans-serif;
}
[data-theme="cyber"] {
  --hot:#22ff66;          /* matrix lime */
  --hot-deep:#0f7a32;
  --hot-soft:rgba(34,255,102,.18);
  --hot-glow:rgba(34,255,102,.55);
  --lock:#a3ff7a;
  --warn:#ff5555;
  --bg:#020a04;
  --panel:#06150b;
  --panel-2:#020a04;
  --border:rgba(34,255,102,.28);
  --fg:#caffd6;
  --muted:rgba(180,255,200,.55);
  --hero-grad-1:rgba(34,255,102,0.18);
  --hero-grad-2:rgba(34,255,102,0.08);
  --hero-grad-3:rgba(34,255,102,0.05);
  /* Cyber-lime "terminal night-vision" look */
  --video-filter:contrast(1.4) saturate(0) sepia(1) hue-rotate(60deg) saturate(7) brightness(1.05);
  --hero-font:'Share Tech Mono', monospace;
}

/* ===== Base ===== */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Comfortaa',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--fg);
  min-height:100vh;
  background:
    radial-gradient(1200px 700px at 10% -10%, var(--hero-grad-1), transparent 60%),
    radial-gradient(900px 600px at 110% 10%, var(--hero-grad-2), transparent 60%),
    radial-gradient(700px 500px at 50% 110%, var(--hero-grad-3), transparent 60%),
    var(--bg);
  padding: 0 20px 80px;
  transition:background .3s;
}
.hidden{display:none!important}

/* ===== Hero ===== */
.page-header{
  text-align:center;max-width:780px;margin:0 auto;
  padding: 20px 16px 8px;
}
.page-header h1{
  font-family:var(--hero-font);
  font-size: clamp(34px, 6vw, 52px);
  color: var(--hot);
  margin: 18px 0 8px;
  letter-spacing: 4px;
  text-transform: uppercase;
  text-shadow: 0 0 28px var(--hot-glow);
}
.page-header .tagline{
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.55;
  font-size: 15px;
}
.page-header em{font-style:italic;color:var(--fg)}

/* ===== Theme picker pills ===== */
.theme-picker{
  display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;
  max-width: 600px; margin: 18px auto 4px;
}
.theme-label{
  font-family:var(--hero-font);font-size:11px;letter-spacing:2.5px;
  color:var(--muted);text-transform:uppercase;margin-right:4px;
}
.theme-pill{
  font-family:'Russo One', sans-serif;font-size:12px;
  letter-spacing:1.5px;text-transform:uppercase;
  padding:9px 16px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.18);
  color:var(--fg);transition:all .15s}
.theme-pill:hover{border-color:var(--hot);color:#fff}
.theme-pill.active{background:var(--hot);color:#0a0a0a;border-color:var(--hot);
  box-shadow:0 0 18px var(--hot-glow)}

/* ===== Step rows (big buttons in a row) ===== */
.step-row{
  display:grid;grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap:14px;max-width:900px;margin: 16px auto 0;
}
.big-btn{
  display:flex;align-items:center;gap:14px;text-align:left;
  padding:16px 22px;border:0;border-radius:16px;cursor:pointer;
  font-family:'Russo One', sans-serif;color:#fff;
  position:relative;overflow:hidden;
  transition:transform .15s, box-shadow .15s;
}
.big-btn::before{content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 25% 30%, rgba(255,255,255,0.12), transparent 55%);
  pointer-events:none}
.big-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.45)}
.big-btn:active{transform:scale(.98)}
.big-btn-icon{font-size:32px;line-height:1;flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,0,0,.4))}
.big-btn-label{font-size:15px;letter-spacing:1.5px;text-transform:uppercase;line-height:1.15}
.big-btn-label small{display:block;font-family:'Comfortaa',sans-serif;
  font-weight:600;font-size:11px;letter-spacing:0.5px;
  text-transform:none;opacity:.75;margin-top:3px}

.btn-primary{background:linear-gradient(160deg, #ff8a3a 0%, var(--hot) 55%, var(--hot-deep) 100%)}
.btn-demo{background:linear-gradient(160deg, #818cf8 0%, #6366f1 55%, #3730a3 100%)}
.btn-success{background:linear-gradient(160deg, #4ade80 0%, var(--lock) 55%, #166534 100%);color:#0a0a0a}
.btn-error{background:linear-gradient(160deg, #f87171 0%, var(--warn) 55%, #7f1d1d 100%)}

[data-theme="thermal"] .btn-success{color:#0a0410}
[data-theme="cyber"] .btn-primary{background:linear-gradient(160deg, #4ade80 0%, var(--hot) 55%, var(--hot-deep) 100%);color:#0a0a0a}
[data-theme="cyber"] .btn-demo{background:linear-gradient(160deg, #166534 0%, #064e3b 55%, #022c1f 100%)}
[data-theme="cyber"] .btn-success{color:#020a04}

@keyframes jiggle{
  0%{transform:rotate(0)}15%{transform:rotate(-1.5deg)}
  30%{transform:rotate(1.5deg)}45%{transform:rotate(-1deg)}
  60%{transform:rotate(1deg)}75%{transform:rotate(-.5deg)}100%{transform:rotate(0)}}
.big-btn.jiggle{animation:jiggle .8s ease-in-out infinite}

/* ===== Setup row (smaller utility buttons) ===== */
.setup-row{
  display:flex;justify-content:center;gap:10px;flex-wrap:wrap;
  max-width:900px;margin: 16px auto;
}
.pill-action{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Russo One', sans-serif;font-size:12px;
  letter-spacing:1.5px;text-transform:uppercase;
  padding:10px 18px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  color:var(--fg);transition:all .15s;
}
.pill-action:hover{border-color:var(--hot);background:var(--hot-soft);color:#fff}
.pill-action svg{display:block}
.pill-action.paused{background:rgba(239,68,68,.25);border-color:var(--warn)}

/* ===== Video stage ===== */
.video-stage{
  position:relative;
  max-width:900px;margin: 8px auto 16px;
  aspect-ratio: 16 / 9;
  border-radius:18px;overflow:hidden;
  background:#000;
  border:2px solid var(--border);
  box-shadow:0 22px 60px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.02);
}
.video-box{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#000}
#cam{display:block;width:100%;height:100%;object-fit:cover;
  filter: var(--video-filter)}
#cam.mirrored{transform:scaleX(-1)}
#overlay{position:absolute;top:0;left:0;width:100%;height:100%;touch-action:none}

/* Top overlay on the video */
.video-top{
  position:absolute;top:0;left:0;right:0;z-index:6;
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;
  background:linear-gradient(rgba(0,0,0,.7), transparent);
  pointer-events:none}
#statusText{
  font-family:'Russo One', sans-serif;font-size:11px;letter-spacing:1.5px;
  color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.7);
  max-width:75%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  text-transform:uppercase}
#fpsText{
  font-family:'Russo One', sans-serif;font-size:11px;letter-spacing:1.5px;
  color:var(--hot);text-shadow:0 0 10px var(--hot-glow)}

/* Action status pill below the top bar */
#actionStatus{
  position:absolute;top:50px;left:0;right:0;z-index:7;
  text-align:center;pointer-events:none}
#actionStatus span{
  display:inline-block;
  background:rgba(11,15,26,.78);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  color:#fff;font-family:'Russo One', sans-serif;font-size:13px;
  padding:7px 18px;border-radius:999px;
  border:1px solid var(--border);
  letter-spacing:2px;text-transform:uppercase}
#actionStatus span.action-fwd{color:#4ade80;border-color:rgba(74,222,128,.5)}
#actionStatus span.action-bwd{color:#fb923c;border-color:rgba(251,146,60,.5)}
#actionStatus span.action-left{color:#60a5fa;border-color:rgba(96,165,250,.5)}
#actionStatus span.action-right{color:#f472b6;border-color:rgba(244,114,182,.5)}
#actionStatus span.action-up{color:#4ade80;border-color:rgba(74,222,128,.5)}
#actionStatus span.action-down{color:#fb923c;border-color:rgba(251,146,60,.5)}
#actionStatus span.action-idle{color:rgba(255,255,255,.55);border-color:rgba(255,255,255,.18)}

/* Track state center label */
.track-state{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  color:#fff;font-family:'Russo One', sans-serif;font-size:14px;
  padding:12px 22px;border-radius:12px;
  pointer-events:none;z-index:5;text-shadow:0 2px 6px rgba(0,0,0,.65);
  text-align:center;max-width:80%;letter-spacing:2.5px;text-transform:uppercase;
  border:1px solid transparent}
.track-state.selecting{
  background:linear-gradient(160deg, var(--hot), var(--hot-deep));
  border-color:var(--hot)}
.track-state.lost{
  background:linear-gradient(160deg, rgba(239,68,68,.9), rgba(127,29,29,.9));
  border-color:var(--warn)}

/* Pause overlay */
.pause-overlay{position:absolute;inset:0;z-index:30;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(5,7,12,.6);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}
.pause-text{font-family:'Russo One', sans-serif;
  font-size: clamp(40px, 10vw, 72px);color:var(--hot);letter-spacing:10px;
  text-shadow:0 0 36px var(--hot-glow)}
.pause-sub{font-family:'Comfortaa',sans-serif;font-size:12px;
  color:rgba(255,255,255,.75);margin-top:14px;font-weight:600;
  letter-spacing:3px;text-transform:uppercase;text-align:center;padding:0 16px}

/* CRAM axis toggles — small left-edge pills */
.cram-axis-btns{position:absolute;left:10px;top:50%;transform:translateY(-50%);
  z-index:12;display:flex;flex-direction:column;gap:8px}
.axis-btn{width:36px;height:36px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);
  background:rgba(11,15,26,.65);color:rgba(255,255,255,.6);
  font-family:'Russo One', sans-serif;font-size:13px;
  cursor:pointer;
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  transition:all .15s}
.axis-btn.active{border-color:var(--hot);color:#fff;background:var(--hot-soft);
  box-shadow:0 0 14px var(--hot-glow)}
.axis-btn:active{transform:scale(.9)}

/* ===== Settings card (ALWAYS visible — major fix from old version) ===== */
.settings-card{
  max-width:900px;margin: 24px auto;
  background: linear-gradient(160deg, var(--panel) 0%, var(--panel-2) 100%);
  border:1px solid var(--border);border-radius:18px;
  box-shadow:0 18px 50px rgba(0,0,0,0.35);
  padding:22px 26px;
}
.settings-header h2{margin:0;font-family:'Russo One', sans-serif;
  font-size:20px;color:var(--hot);letter-spacing:2.5px;text-transform:uppercase;
  text-shadow:0 0 14px var(--hot-glow)}
.settings-header .hint{margin: 4px 0 14px;font-size:13px;color:var(--muted)}

.settings-body .s-title{
  font-family:'Russo One', sans-serif;font-size:11px;color:var(--hot);
  text-transform:uppercase;letter-spacing:2px;margin:20px 0 10px;
  padding-bottom:8px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.settings-body .s-scope{font-family:'Comfortaa',sans-serif;font-weight:600;
  font-size:11px;color:var(--muted);letter-spacing:0.5px;text-transform:none}
.settings-body .s-row{
  display:grid;grid-template-columns:140px 1fr 48px;align-items:center;
  gap:12px;margin-bottom:8px}
.settings-body .s-row span{font-size:13px;font-weight:600;color:var(--fg);
  display:flex;align-items:center;gap:6px}
.settings-body .s-row input[type="range"]{width:100%;height:26px;cursor:pointer;accent-color:var(--hot)}
.settings-body .s-row em{font-style:normal;font-family:'Russo One', sans-serif;font-size:12px;
  color:var(--hot);text-align:right;text-shadow:0 0 10px var(--hot-glow)}
.settings-body .s-row.chk{grid-template-columns:140px auto 1fr}
.settings-body .s-row.chk input[type="checkbox"]{width:18px;height:18px;accent-color:var(--hot);cursor:pointer}

.preset-pills{display:flex;gap:10px;flex-wrap:wrap;margin: 0 0 6px}
.preset-pill{font-family:'Russo One', sans-serif;font-size:12px;
  letter-spacing:1.5px;text-transform:uppercase;
  padding:9px 18px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.18);
  color:var(--fg);transition:all .15s}
.preset-pill:hover{border-color:var(--hot);color:#fff}
.preset-pill.active{background:var(--hot);color:#0a0a0a;border-color:var(--hot);
  box-shadow:0 0 14px var(--hot-glow)}

.s-reset{text-align:right;margin-top:22px;padding-top:16px;border-top:1px solid var(--border)}
.s-reset a{
  color:var(--warn);font-family:'Russo One', sans-serif;font-size:12px;
  letter-spacing:1.5px;text-transform:uppercase;text-decoration:none;
  padding:8px 18px;border:1px solid rgba(239,68,68,.4);border-radius:999px;
  display:inline-block;transition:background .15s}
.s-reset a:hover{background:rgba(239,68,68,.18)}

/* Tooltip buttons */
.tip-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:18px;height:18px;border-radius:50%;
  border:1px solid var(--border);
  background:var(--hot-soft);color:var(--fg);
  font-size:10px;font-weight:700;cursor:pointer;padding:0;
  flex-shrink:0;line-height:1;font-family:'Comfortaa',sans-serif}
.tip-btn:hover{background:var(--hot);color:#0a0a0a}

.tip-popup{position:fixed;z-index:200;
  background:rgba(11,15,26,.98);color:var(--fg);
  font-family:'Comfortaa',sans-serif;font-size:12px;font-weight:500;
  line-height:1.5;padding:12px 16px;border-radius:10px;max-width:260px;
  box-shadow:0 8px 30px rgba(0,0,0,.65);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--border);pointer-events:none}

/* ===== Mode picker overlay ===== */
.overlay{position:fixed;inset:0;z-index:100;
  background:rgba(5,7,12,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  display:flex;align-items:center;justify-content:center;padding:20px}
.overlay-content{width:100%;max-width:420px;text-align:center}
.overlay-content h2{margin:0 0 20px;font-family:'Russo One', sans-serif;
  font-size:24px;color:var(--hot);letter-spacing:3px;text-transform:uppercase;
  text-shadow:0 0 24px var(--hot-glow)}

.mode-cards{display:grid;gap:14px}
.mode-card{
  background:
    radial-gradient(circle at 30% 30%, var(--hot-soft), transparent 60%),
    linear-gradient(160deg, var(--panel) 0%, var(--panel-2) 100%);
  border:2px solid var(--border);
  border-radius:16px;padding:24px 20px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--fg);transition:all .18s;text-align:center;
  font-family:inherit}
.mode-card:hover{border-color:var(--hot);transform:translateY(-3px);
  box-shadow:0 14px 30px rgba(0,0,0,0.5)}
.mode-card:active{transform:scale(.98)}
.mode-card svg{color:var(--hot)}
.mode-card-title{font-family:'Russo One', sans-serif;font-size:18px;
  color:var(--hot);letter-spacing:2px;text-transform:uppercase;
  text-shadow:0 0 12px var(--hot-glow)}
.mode-card-desc{font-size:12px;color:var(--muted);line-height:1.5}

/* Demo mode badge — small chip in the top corner */
body.demo-active::after{
  content:"DEMO MODE — motors disabled";
  position:fixed;top:90px;left:50%;transform:translateX(-50%);
  z-index:60;
  font-family:'Russo One', sans-serif;font-size:11px;
  letter-spacing:2px;text-transform:uppercase;color:#fff;
  background:linear-gradient(160deg, #818cf8, #6366f1);
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.25);
  box-shadow:0 6px 20px rgba(99,102,241,.45);
  pointer-events:none}

/* Banner */
.banner{
  max-width:900px;margin:0 auto 14px;
  background:rgba(239,68,68,.16);
  color:#fff;text-align:center;
  padding:10px 14px;border-radius:10px;
  border:1px solid rgba(239,68,68,.4);
  font-family:'Russo One', sans-serif;
  font-size:12px;letter-spacing:1.2px;text-transform:uppercase}

/* ===== Mobile ===== */
@media (max-width: 700px){
  body{padding:0 12px 64px}
  .page-header h1{font-size:30px;letter-spacing:2px}
  .page-header .tagline{font-size:13px}
  .big-btn{padding:14px 16px;gap:10px}
  .big-btn-icon{font-size:24px}
  .big-btn-label{font-size:13px;letter-spacing:1px}
  .big-btn-label small{font-size:10px}
  .video-stage{aspect-ratio: 9 / 16;max-height:80vh}
  .settings-card{padding:18px 16px}
  .settings-body .s-row{grid-template-columns:1fr auto;gap:8px}
  .settings-body .s-row input[type="range"]{grid-column:1 / -1}
  .settings-body .s-row em{grid-column:2;grid-row:1}
  .settings-body .s-row.chk{grid-template-columns:1fr auto}
  body.demo-active::after{top:auto;bottom:14px;font-size:10px}
}