/* TankSense shared page styles (home screen and future non-3D tools) */
:root{
  --bg:#f4f8fb; --panel:#ffffff; --text:#0f1f2e; --muted:#5a6b7b; --line:#d4dde6;
  --accent:#0a7cff; --ocean:#082238; --ocean-2:#0d3a5e;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0b141d; --panel:#121b25; --text:#e7eef5; --muted:#91a2b3; --line:#2a3644; --accent:#3d9bff;
  }
}
:root[data-theme="dark"]{
  --bg:#0b141d; --panel:#121b25; --text:#e7eef5; --muted:#91a2b3; --line:#2a3644; --accent:#3d9bff;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-tap-highlight-color:transparent;min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:960px;margin:0 auto;padding-left:max(16px, env(safe-area-inset-left));
  padding-right:max(16px, env(safe-area-inset-right))}

/* the header stays ocean-coloured in both themes */
.hero{background:linear-gradient(160deg, var(--ocean-2), var(--ocean) 70%);color:#eaf4ff;
  padding:calc(env(safe-area-inset-top,0px) + 14px) 0 34px}
.hero-in{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:750;font-size:20px;letter-spacing:-.01em}
.brand img{border-radius:10px;display:block}
.hero h1{font-size:clamp(28px, 6vw, 40px);line-height:1.15;margin:30px 0 8px;letter-spacing:-.02em}
.lede{margin:0;max-width:34em;color:#b9d3ea;font-size:17px}
.install{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.08);color:#fff;border-radius:999px;padding:9px 15px;
  font:650 14px/1 inherit;font-family:inherit;cursor:pointer}
.install svg{width:17px;height:17px}
.install:hover{background:rgba(255,255,255,.16)}

main{flex:1;padding-top:8px;padding-bottom:32px}
h2{font-size:15px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:26px 0 12px}
.tools{display:grid;grid-template-columns:repeat(auto-fill, minmax(min(100%, 280px), 1fr));gap:14px}
.tool{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;color:inherit;text-decoration:none;transition:transform .15s ease, box-shadow .15s ease}
a.tool:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(8,34,56,.14)}
.tool .art{background:var(--ocean);padding:18px 24px}
.tool .art svg{display:block;width:100%;height:auto;max-height:130px}
.tool .body{padding:16px 18px 18px}
.tool h3{margin:0 0 6px;font-size:18px}
.tool p{margin:0;color:var(--muted);font-size:15px}
.tool .go{display:inline-block;margin-top:14px;color:var(--accent);font-weight:650}
.tool.soon{border-style:dashed;background:transparent;justify-content:center}

.pro{display:inline-block;vertical-align:2px;font-size:11px;font-weight:750;letter-spacing:.05em;text-transform:uppercase;
  background:linear-gradient(135deg,#f2c14e,#f2711c);color:#2b1700;border-radius:999px;padding:2px 8px;margin-left:6px}

/* my tanks */
.mytanks{display:grid;grid-template-columns:repeat(auto-fill, minmax(min(100%, 280px), 1fr));gap:12px}
.tank{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px;color:inherit;font:inherit;text-align:left}
.tank.on{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.thead{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.thead b{display:block;font-size:17px;overflow-wrap:anywhere}
.thead span{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.tbtn{flex:none;padding:8px 12px;border-radius:10px;border:1px solid var(--line);background:none;color:var(--accent);
  font:650 14px/1 inherit;font-family:inherit;cursor:pointer}
.tbtn.pri{background:var(--accent);border-color:var(--accent);color:#fff;margin-top:12px;padding:11px 16px}
.tlinks{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.tlinks a{padding:7px 12px;border-radius:999px;background:var(--bg);border:1px solid var(--line);color:var(--text);
  text-decoration:none;font-size:14px;font-weight:600}
.tlinks a:hover{border-color:var(--accent)}
.tank.empty p{margin:0;color:var(--muted)}
.tank.addt{border-style:dashed;color:var(--accent);font-weight:650;cursor:pointer;min-height:64px;text-align:center;background:transparent}

.foot{padding-top:18px;padding-bottom:calc(env(safe-area-inset-bottom,0px) + 18px);
  color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
.foot p{margin:0}

dialog{border:0;border-radius:16px;padding:18px;max-width:min(420px, calc(100% - 32px));
  background:var(--panel);color:var(--text);box-shadow:0 12px 40px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(0,0,0,.5)}
dialog strong{font-size:17px}
dialog ol{padding-left:20px;margin:12px 0 16px}
dialog li{margin:6px 0}
.share{width:18px;height:18px;vertical-align:-3px;color:var(--accent)}
.ok{width:100%;padding:12px;border-radius:10px;border:0;background:var(--accent);color:#fff;
  font:650 15px/1 inherit;font-family:inherit;cursor:pointer}

button:focus-visible,a:focus-visible{outline:2px solid #7cc4ff;outline-offset:2px}
@media (prefers-reduced-motion: reduce){.tool{transition:none}}