:root {
  --bg: #0b0b12;
  --bg2: #11111c;
  --panel: rgba(22, 22, 34, 0.72);
  --panel-border: rgba(212, 175, 55, 0.18);
  --gold: #d4af37;
  --gold-soft: #e8cf7a;
  --purple: #6c3fb5;
  --purple-glow: #9b6bff;
  --blue: #00d8e6;
  --red: #ff4d5e;
  --text: #ece9f5;
  --muted: #9a96b3;
  --sym-eq: var(--gold);
  --sym-plus: #49d6a0;
  --sym-minus: var(--red);
  --sym-quat: #00d8e6;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans Thai", "Segoe UI", system-ui, sans-serif;
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---------- Background decorations ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -3;
  background-image:
    linear-gradient(rgba(107, 63, 181, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 35%, transparent 80%);
}
.bg-glow {
  position: fixed; z-index: -2; border-radius: 50%; filter: blur(90px);
  opacity: 0.5; pointer-events: none;
}
.glow-a { width: 520px; height: 520px; background: #5a2da0; top: -160px; left: -120px; }
.glow-b { width: 600px; height: 600px; background: #8a6b1e; bottom: -220px; right: -160px; opacity: 0.32; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px; border-bottom: 1px solid rgba(212, 175, 55, 0.12);
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, rgba(8,8,14,0.85), rgba(8,8,14,0.35));
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand-mark { color: var(--gold); font-size: 20px; text-shadow: 0 0 14px var(--gold-soft); }
.brand-text {
  font-family: "Orbitron", sans-serif; letter-spacing: 3px;
  font-weight: 700; font-size: 18px; color: var(--gold);
}
.brand-sub { color: var(--muted); font-size: 13px; letter-spacing: 1px; }
.status { color: var(--purple-glow); font-size: 13px; }

/* ---------- Layout ---------- */
.container { max-width: 1280px; margin: 0 auto; padding: 12px 14px 28px; }

/* ---------- Controls ---------- */
.controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 8px; align-items: end;
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 8px; padding: 8px 10px;
  box-shadow: 0 0 0 1px rgba(155, 107, 255, 0.05), 0 8px 24px rgba(0,0,0,0.4);
}
.field { display: flex; flex-direction: column; gap: 3px; }
.field label { font-size: 11px; color: var(--muted); letter-spacing: 0.5px; text-transform: uppercase; }
.muted { color: var(--muted); font-size: 12px; }

select, button {
  font-family: inherit; font-size: 14px; color: var(--text);
  background: rgba(10, 10, 18, 0.9);
  border: 1px solid rgba(155, 107, 255, 0.22);
  border-radius: 6px; padding: 6px 9px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
select:focus, button:focus-visible { border-color: var(--gold); box-shadow: 0 0 0 2px rgba(212,175,55,0.18); }
select:disabled { opacity: .5; }

.nav-buttons { display: flex; gap: 5px; }
button { cursor: pointer; }
button.ghost { background: transparent; border-color: rgba(212,175,55,0.28); color: var(--gold-soft); }
button.ghost:hover { background: rgba(212,175,55,0.1); border-color: var(--gold); }
button.link { background: none; border: none; color: var(--purple-glow); font-size: 13px; padding: 4px; cursor: pointer; }
button.link:hover { color: var(--gold); text-decoration: underline; }

/* ---------- Result head ---------- */
.result-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin: 12px 2px 8px; flex-wrap: wrap; gap: 6px;
}
.result-head h2 { margin: 0; font-size: 19px; font-weight: 600; color: var(--gold-soft); }
.result-head p { margin: 1px 0 0; font-size: 12px; }

/* ---------- Panels ---------- */
.panels { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.panel {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 8px; overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}
.panel-head {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px; border-bottom: 1px solid rgba(155,107,255,0.14);
  background: linear-gradient(180deg, rgba(155,107,255,0.08), transparent);
}
.panel-tag {
  font-family: "Orbitron", sans-serif; font-size: 11px; letter-spacing: 1px;
  padding: 1px 8px; border-radius: 999px; border: 1px solid currentColor;
}
.tag-natal { color: var(--gold); }
.tag-mutual { color: var(--purple-glow); }
.panel-body { padding: 6px 10px 10px; }
.empty { color: var(--muted); text-align: center; padding: 18px 0; font-size: 13px; }

/* aspect groups */
.group { margin-top: 6px; }
.group-head {
  display: flex; align-items: center; gap: 6px; font-family: "Orbitron", sans-serif;
  font-size: 12px; color: var(--text); margin: 3px 0 3px;
  letter-spacing: 1px;
}
.group-head .angle { color: var(--gold-soft); min-width: 34px; }
.items { display: flex; flex-wrap: wrap; gap: 4px; }
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(155,107,255,0.16);
  border-radius: 6px; padding: 2px 8px; font-size: 12px;
}
.pill .pair { color: var(--text); font-size: 16px; font-family: "Orbitron"; }
.pill .off { color: var(--muted); font-size: 11px; }
.pill .sym { font-weight: 700; font-family: "Orbitron"; }

.mutual-block {
  border: 1px solid rgba(212,175,55,0.16);
  border-radius: 6px; padding: 3px 7px; margin-bottom: 4px;
  background: rgba(212,175,55,0.04);
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px;
}
.mutual-block .pair-title {
  font-family: "Orbitron", sans-serif; color: var(--gold-soft);
  font-size: 16px; margin: 0; letter-spacing: 1px; white-space: nowrap;
}
.pill .mut-angle { color: var(--text); font-size: 14px; }
.mutual-block .items { flex: 1; margin: 0; }

/* symbol colors (targeted via data-sym attribute to avoid escaping issues) */
.sym[data-sym="="] { color: var(--sym-eq); }
.sym[data-sym="+"] { color: var(--sym-plus); }
.sym[data-sym="-"] { color: var(--sym-minus); }
.sym[data-sym="Q"] { color: var(--sym-quat); }

/* ---------- Legend ---------- */
.legend { margin-top: 12px; }
.legend-card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 8px; padding: 10px 14px;
}
.legend-card h3 { margin: 2px 0 6px; font-size: 14px; color: var(--gold-soft); letter-spacing: 1px; }
.legend-title2 { margin-top: 8px; }
.legend-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 6px; font-size: 13px; }
.legend-grid .sym { display: inline-block; width: 18px; text-align: center; font-weight: 700; margin-right: 8px; }
.legend-grid .sym[data-sym="="] { color: var(--sym-eq); }
.legend-grid .sym[data-sym="+"] { color: var(--sym-plus); }
.legend-grid .sym[data-sym="-"] { color: var(--sym-minus); }
.legend-grid .sym.Q,
.legend .sym.Q { color: var(--sym-quat); }
.planet-legend { display: flex; flex-wrap: wrap; gap: 5px; }
.planet-chip {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid rgba(155,107,255,0.2); border-radius: 999px;
  padding: 2px 8px; font-size: 12px; background: rgba(255,255,255,0.02);
}
.planet-chip .idx { color: var(--gold); font-family: "Orbitron", sans-serif; }

/* ---------- Footer ---------- */
.footer {
  text-align: center; color: var(--muted); font-size: 11px;
  padding: 12px 16px 20px; letter-spacing: 0.5px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .controls { grid-template-columns: 1fr 1fr; }
  .nav-buttons { grid-column: 1 / -1; justify-content: space-between; }
  .panels { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .controls { grid-template-columns: 1fr; }
  .result-head h2 { font-size: 20px; }
}