/* Optimus — luxury design system
   Palette: #00a6fb #0582ca #006494 #003554 #051923 */
@import url('https://fonts.googleapis.com/css2?family=Heebo:wght@300;400;500;600;700;800;900&display=swap');

:root{
  --c-accent:#00a6fb;
  --c-accent-2:#0582ca;
  --c-deep:#006494;
  --c-navy:#003554;
  --c-abyss:#051923;
  --bg:#03121c;
  --panel:rgba(0,53,84,0.32);
  --panel-solid:#06283d;
  --border:rgba(0,166,251,0.16);
  --border-strong:rgba(0,166,251,0.42);
  --text:#e8f3fb;
  --text-strong:#dceffb;
  --text-soft:#b9d4e6;
  --muted:#7fa0b5;
  --danger:#ff6b7a;
  --ok:#00a6fb;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --input-bg:rgba(3,18,28,.65);
  --input-border:rgba(0,100,148,.45);
  --body-bg:
    radial-gradient(1200px 600px at 80% -10%, rgba(0,166,251,.18), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(5,130,202,.12), transparent 55%),
    linear-gradient(160deg,#051923 0%,#03121c 55%,#020d15 100%);
}

[data-theme="light"]{
  --bg:#f4f9fd;
  --panel:rgba(255,255,255,0.72);
  --panel-solid:#ffffff;
  --border:rgba(0,100,148,0.14);
  --border-strong:rgba(0,100,148,0.35);
  --text:#0b2536;
  --text-strong:#062033;
  --text-soft:#1c3a4e;
  --muted:#5b7a8e;
  --danger:#d13a4a;
  --shadow:0 12px 34px rgba(0,84,140,.12);
  --input-bg:#ffffff;
  --input-border:rgba(0,100,148,.28);
  --body-bg:
    radial-gradient(1200px 600px at 80% -10%, rgba(0,166,251,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(5,130,202,.06), transparent 55%),
    linear-gradient(160deg,#eef6fb 0%,#f7fbfd 55%,#eef6fb 100%);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Heebo',Arial,sans-serif;
  color:var(--text);
  min-height:100vh;
  background:var(--body-bg);
  background-attachment:fixed;
  transition:background-color .2s,color .2s;
}

/* theme toggle switch */
.theme-toggle{cursor:pointer;border:1px solid var(--border-strong);background:var(--panel-solid);
  color:var(--text);border-radius:20px;padding:7px 14px;font-size:13px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;box-shadow:none}
.theme-toggle:hover{transform:none;border-color:var(--c-accent)}

/* typography */
h1,h2,h3{font-family:'Heebo',sans-serif;font-weight:800;letter-spacing:-.2px;margin:0}
.brand{font-family:'Heebo',sans-serif;font-weight:900;
  background:linear-gradient(90deg,#00a6fb,#7fd0ff);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted);font-size:13px}
a{color:var(--c-accent);text-decoration:none}
a:hover{text-decoration:underline}

/* layout */
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:16px 26px;background:rgba(3,18,28,.7);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.topbar .logo{font-size:20px}
.wrap{max-width:960px;margin:0 auto;padding:26px}

/* cards / glass */
.card{
  background:var(--panel);backdrop-filter:blur(14px);
  border:1px solid var(--border);border-radius:18px;padding:22px;margin-bottom:18px;
  box-shadow:var(--shadow);
}
.card h2{font-size:18px;margin-bottom:14px;color:var(--text-strong)}
.card h2 .dot{display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);box-shadow:0 0 12px var(--c-accent);margin-inline-start:8px}

/* forms */
label{display:block;font-size:12.5px;color:var(--muted);margin:12px 0 6px;font-weight:500}
input,select{width:100%;padding:12px 13px;border-radius:11px;
  border:1px solid var(--input-border);background:var(--input-bg);
  color:var(--text);font-size:14px;font-family:inherit;transition:.2s}
input:focus,select:focus{outline:none;border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(0,166,251,.18)}
input::placeholder{color:#4f6c80}

/* buttons */
button,.btn{cursor:pointer;border:0;border-radius:11px;padding:12px 18px;
  font-family:inherit;font-weight:700;font-size:14px;color:#021622;
  background:linear-gradient(135deg,#00a6fb,#0582ca);
  box-shadow:0 8px 22px rgba(0,166,251,.28);transition:.18s}
button:hover,.btn:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(0,166,251,.4)}
button:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--muted);
  border:1px solid rgba(0,100,148,.5);box-shadow:none}
.btn-ghost:hover{color:var(--text);border-color:var(--c-accent);box-shadow:none}

/* tabs */
.tabs{display:flex;gap:8px;margin-bottom:16px}
.tabs button{flex:1;background:rgba(3,18,28,.5);color:var(--muted);box-shadow:none;font-weight:600}
.tabs button.active{background:linear-gradient(135deg,#00a6fb,#0582ca);color:#021622}

/* tables */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{text-align:right;padding:10px 8px;border-bottom:1px solid rgba(0,100,148,.25)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}

/* plan cards */
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}
.plan{position:relative;background:linear-gradient(180deg,rgba(0,53,84,.5),rgba(5,25,35,.5));
  border:1px solid var(--border);border-radius:18px;padding:24px 20px;text-align:center;
  transition:.2s;overflow:hidden}
.plan:hover{transform:translateY(-4px);border-color:var(--border-strong);
  box-shadow:0 20px 44px rgba(0,166,251,.22)}
.plan.featured{border-color:var(--c-accent);box-shadow:0 0 0 1px var(--c-accent),0 20px 50px rgba(0,166,251,.25)}
.plan .name{font-family:'Heebo',sans-serif;font-size:22px;font-weight:700;color:var(--text-strong)}
.plan .price{font-size:30px;font-weight:700;margin:10px 0;
  background:linear-gradient(90deg,#00a6fb,#7fd0ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.plan .price small{font-size:13px;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.plan ul{list-style:none;padding:0;margin:14px 0;color:var(--text-soft);font-size:14px}
.plan ul li{padding:7px 0;border-bottom:1px solid var(--border)}
.plan .badge{position:absolute;top:14px;left:14px;font-size:11px;font-weight:700;
  background:var(--c-accent);color:#021622;padding:3px 10px;border-radius:20px}

/* stats */
.stats{display:flex;gap:14px;flex-wrap:wrap}
.stat{flex:1;min-width:120px;background:rgba(3,18,28,.5);border:1px solid var(--border);
  border-radius:14px;padding:16px}
.stat b{display:block;font-size:26px;font-family:'Heebo',sans-serif;
  background:linear-gradient(90deg,#00a6fb,#7fd0ff);-webkit-background-clip:text;background-clip:text;color:transparent}

.row{display:flex;gap:12px;flex-wrap:wrap}.row>div{flex:1;min-width:130px}
.err{color:var(--danger);font-size:13px}
.ok{color:var(--c-accent);font-size:13px}
.key{font-family:Consolas,monospace;background:rgba(3,18,28,.7);border:1px solid var(--border);
  padding:10px;border-radius:9px;word-break:break-all;font-size:12px;color:#7fd0ff}
.msg{margin-top:12px;font-size:13px}
.pill{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;
  background:rgba(0,166,251,.14);color:var(--c-accent-2);border:1px solid var(--border)}

/* light-mode adjustments for elements with hardcoded dark rgba backgrounds */
[data-theme="light"] .plan{background:linear-gradient(180deg,rgba(0,166,251,.06),rgba(255,255,255,.6))}
[data-theme="light"] .stat{background:#eef6fb}
[data-theme="light"] .tabs button{background:#eef6fb}
[data-theme="light"] .key{background:#eef6fb;color:var(--c-accent-2)}
[data-theme="light"] .pill{color:var(--c-accent-2)}