/* alglab.io — glassmorphic minimalist */
:root{
  --bg: #0b0f14;
  --card: rgba(255,255,255,0.06);
  --card-2: rgba(255,255,255,0.08);
  --text: #eaf0f6;
  --muted: #9fb1c3;
  --accent: #60a5fa;
  --accent-2: #34d399;
  --ring: rgba(96,165,250,0.45);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --blur: blur(14px);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:'Rubik',system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #10243b 0%, transparent 60%),
              radial-gradient(1000px 600px at 90% 0%, #0f172a 0%, transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.5;
}

.glass{
  background: var(--card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.site-header{
  margin:24px auto 12px;
  padding:18px 20px;
  max-width:1100px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:700}
.brand .logo{font-size:28px}
.brand .name{font-size:20px;letter-spacing:0.4px}
.tagline{color:var(--muted);font-size:14px}

main{max-width:1100px;margin:0 auto;padding:10px 18px 36px;display:grid;gap:18px}

.intro{padding:22px}
.intro h1{margin:0 0 6px}
.hint{color:var(--muted);margin-top:6px}

.cases{padding:18px}
.cases-header{display:flex;align-items:center;justify-content:space-between;gap:12px}
.cases-header h2{margin:0}
.search input{
  width:260px;
  max-width:40vw;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.14);
  background: var(--card-2);
  color: var(--text);
  outline:none;
}
.search input:focus{box-shadow:0 0 0 4px var(--ring)}

.cases-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;margin-top:14px}

.case-card{padding:14px;display:flex;flex-direction:column;gap:10px}
.case-header{display:flex;align-items:center;justify-content:space-between}
.case-id{font-weight:700;font-size:16px}
.alg-list{display:flex;flex-direction:column;gap:8px;max-height:260px;overflow:auto;padding-right:4px}
.alg-row{display:flex;align-items:center;gap:8px}
.alg-text{flex:1;font-size:14px;color:#e7ecf4}
.alg-enter{
  border:1px solid rgba(255,255,255,0.18);
  background:linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.06));
  color:var(--text);
  border-radius:12px;
  padding:8px 10px;
  cursor:pointer;
  transition:transform .05s ease, box-shadow .2s ease;
}
.alg-enter:hover{box-shadow:0 0 0 4px var(--ring)}
.alg-enter:active{transform:translateY(1px)}

.modal{
  width:min(600px, 92vw);
  padding:0;
  border:none;
}
.modal::backdrop{background:rgba(0,0,0,0.55);backdrop-filter:blur(2px)}

.entry-form{padding:18px 18px 16px;display:flex;flex-direction:column;gap:12px}
.entry-form h3{margin:6px 0 2px}
.case-alg{display:flex;flex-wrap:wrap;gap:8px;margin:0}
.case-pill,.alg-pill{
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  color: #cfe3ff;
}

.field{display:flex;flex-direction:column;gap:6px}
.field input,.field select{
  padding:12px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.14);
  background: var(--card-2);
  color: var(--text);
  outline:none;
}
.field input:focus,.field select:focus{box-shadow:0 0 0 4px var(--ring)}

.actions{display:flex;gap:10px;margin-top:6px}
.primary,.ghost{
  border-radius:12px;
  padding:10px 14px;
  cursor:pointer;
  border:1px solid rgba(255,255,255,0.18);
  background:linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.06));
  color:var(--text);
}
.ghost{opacity:.8}
.close{
  position:absolute;right:10px;top:10px;
  border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:18px
}
.status{min-height:20px;color:var(--muted);font-size:13px}

.site-footer{max-width:1100px;margin:0 auto;padding:10px 20px 40px;color:var(--muted);text-align:center}

/* Make native form controls use dark styling where supported */
:root { color-scheme: dark; }

/* Darker control backgrounds + better contrast */
.field select,
.field input {
  background: #0f172a;            /* darker than --card-2 */
  border-color: rgba(255,255,255,0.22);
  color: #eaf0f6;
}

/* Placeholder contrast */
.field input::placeholder { color: #c8d3df; opacity: .9; }

/* Darken the dropdown list itself (browser support varies) */
.field select option {
  background-color: #0b1220;
  color: #eaf0f6;
}

/* Focus ring still visible against the darker bg */
.field input:focus,
.field select:focus {
  box-shadow: 0 0 0 4px var(--ring);
  border-color: rgba(255,255,255,0.28);
}