:root {
  --bg: #0c141d;
  --bg-glow-1: #143a3a;
  --bg-glow-2: #1a2a4a;
  --glass: rgba(255, 255, 255, 0.055);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-hover: rgba(255, 255, 255, 0.08);
  --text: #e8eef4;
  --text-dim: #93a3b5;
  --accent: #5eead4;
  --accent-dim: #3fa896;
  --amber: #f0b429;
  --amber-dim: #7a5c14;
  --danger: #f4886b;
  --radius: 16px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px 400px at 15% 10%, var(--bg-glow-1) 0%, transparent 60%),
    radial-gradient(700px 500px at 85% 30%, var(--bg-glow-2) 0%, transparent 60%);
  opacity: 0.5;
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 80px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.topbar {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}

.brand { display: flex; gap: 14px; align-items: center; }
.brand-mark {
  font-size: 28px;
  color: var(--accent);
  filter: drop-shadow(0 0 12px rgba(94,234,212,0.5));
}
h1 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
.subtitle { margin: 2px 0 0; font-size: 13px; color: var(--text-dim); }

.household-widget {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 10px 18px;
  backdrop-filter: blur(16px);
}
.household-people {
  display: flex;
  gap: 4px;
}
.household-people .person {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--text-dim);
}
.household-people .person.abby {
  background: var(--accent);
  box-shadow: 0 0 8px rgba(94,234,212,0.7);
}
.household-control { display: flex; flex-direction: column; gap: 2px; }
.household-control label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); }
.household-control input {
  width: 50px; background: transparent; border: none; color: var(--text);
  font-family: var(--font-mono); font-size: 15px; font-weight: 600; padding: 0;
}
.household-control input:focus { outline: none; }

.panel {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  backdrop-filter: blur(16px);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.panel-head h2 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-sub { font-size: 12.5px; color: var(--text-dim); margin: 0; max-width: 60%; }

.pill {
  background: var(--amber-dim);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 9px;
  border-radius: 999px;
}

input, select, button {
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: 9px;
  padding: 9px 12px;
}
input[type="month"], input[type="date"] { color-scheme: dark; }

button {
  background: var(--accent);
  color: #06201c;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.1s ease;
}
button:hover { filter: brightness(1.08); }
button:active { transform: scale(0.98); }

.upload-form, .manual-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.car-form {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  align-items: end;
}
.car-form label { display: flex; flex-direction: column; gap: 4px; font-size: 11.5px; color: var(--text-dim); }
.car-form button { grid-column: 1 / -1; }

.hint { font-size: 12.5px; color: var(--text-dim); margin: 10px 0 0; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.summary-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 14px 16px;
}
.summary-card .label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }
.summary-card .value { font-family: var(--font-mono); font-size: 20px; font-weight: 600; margin-top: 4px; }

.ssa-breakdown {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.ssa-chip {
  font-size: 12px;
  font-family: var(--font-mono);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--text-dim);
}
.ssa-chip b { color: var(--text); }

.transfer-callout {
  background: rgba(94,234,212,0.08);
  border: 1px solid rgba(94,234,212,0.3);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 14px;
}
.transfer-callout b { color: var(--accent); font-family: var(--font-mono); font-size: 17px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding: 8px 10px;
  border-bottom: 1px solid var(--glass-border);
}
td { padding: 8px 10px; border-bottom: 1px solid rgba(255,255,255,0.05); vertical-align: middle; }
td.amount, td.share { font-family: var(--font-mono); }
tr:hover td { background: var(--glass-hover); }

.mini-select {
  padding: 5px 8px;
  font-size: 12px;
  border-radius: 7px;
}

.badge-review { color: var(--amber); font-size: 11px; font-weight: 600; }
.badge-notshared { color: var(--text-dim); }

.icon-btn {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  font-size: 11px;
  padding: 5px 9px;
}
.icon-btn:hover { color: var(--danger); border-color: var(--danger); }

@media (max-width: 640px) {
  .car-form { grid-template-columns: 1fr 1fr; }
  .panel-sub { max-width: 100%; }
}