:root{
  --bg: #0b1020;
  --fg: #e9eefb;
  --muted: #a7b0c3;
  --card: #121a2b;
  --accent: #6ae6c1;
  --accent-2: #7aa2ff;
  --danger: #ff6b6b;
  --border: #23314f;
}

*{ box-sizing: border-box; }
body{
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #15213f 0%, #0b1020 60%, #070a14 100%);
  color: var(--fg);
}
.wrap{ max-width: 1000px; margin: 0 auto; padding: 24px; }
.muted{ color: var(--muted); }

/* ---------- header ---------- */
.hero{
  text-align: center;
  padding: 48px 24px 16px;
  background:
    radial-gradient(800px 260px at 50% 0%, rgba(122,162,255,0.2), transparent 60%),
    linear-gradient(180deg, rgba(13,20,40,0.6), transparent);
  border-bottom: 1px solid var(--border);
}
.hero h1{
  margin: 0;
  font-size: 42px;
  letter-spacing: 0.5px;
  color: #ffffff;
  text-shadow: 0 6px 30px rgba(106,230,193,0.15);
}

/* ---------- image tiles ---------- */
.bg-gallery{
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.bg-tile{
  border-radius: 12px;
  min-height: 120px;
  background: #111 no-repeat center/cover;
  /* Set per-tile image in HTML with: style="--bg: url('...')" */
  background-image: var(--bg);
  background-image: image-set(var(--bg));
  box-shadow: inset 0 0 0 1px var(--border), 0 8px 24px rgba(0,0,0,0.25);
  position: relative;
}
.bg-tile::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,0.25));
  border-radius:12px;
}

/* ---------- form layout ---------- */
.grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 14px;
  margin-bottom: 10px;
}
.grid label{ display: grid; gap: 6px; font-weight: 600; color: #d9e3ff; }
input, select{
  padding: 10px 12px;
  background: #0e1627;
  color: #e9eefb;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
}
input::placeholder{ color: #7d8bb0; }

/* ---------- priorities (replaces weights) ---------- */
.prefs{
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 10px;
  background: #0c1323;
}
.prefs legend{ padding: 0 8px; color: #cfd9ff; }
.pref-row{
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 12px;
  align-items: center;
}

/* (old .weights styles kept harmlessly; unused) */
fieldset.weights{ display:none; }

/* ---------- buttons ---------- */
.btn{
  display: inline-block;
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #07101f;
  border: 0; border-radius: 10px;
  font-weight: 700; cursor: pointer;
  box-shadow: 0 8px 24px rgba(122,162,255,0.25);
}
.btn:disabled{ opacity: 0.6; cursor: not-allowed; }
.btn.ghost{
  background: transparent; color: var(--fg);
  border: 1px solid var(--border);
}
.actions{ grid-column: 1 / -1; display: flex; gap: 10px; }

/* ---------- results ---------- */
.tbl{ width: 100%; border-collapse: collapse; margin-top: 12px; }
.tbl th, .tbl td{
  border: 1px solid var(--border);
  padding: 10px; text-align: left; vertical-align: top;
}
.tbl th{ background: #0e182d; color: #cfe2ff; }

.cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px; margin: 12px 0;
}
.card{
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: var(--card);
  box-shadow: 0 8px 16px rgba(0,0,0,0.25);
}
.mono{
  white-space: pre-wrap; word-break: break-word;
  background: #0b1326;
  border: 1px solid var(--border);
  padding: 10px; border-radius: 8px;
  color: #d7e6ff;
}

/* ---------- flash ---------- */
.flash p{
  padding: 10px;
  background: #2b0f14;
  border: 1px solid #572131;
  border-radius: 8px;
  color: #ffd9df;
}