:root {
  --bg: #0f1419;
  --surface: #1a222d;
  --surface2: #232d3b;
  --border: #2d3a4d;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3d9cf5;
  --accent-dim: rgba(61, 156, 245, 0.15);
  --ok: #34c759;
  --warn: #ff9f0a;
  --bad: #ff453a;
  --radius: 12px;
  --font: "Pretendard Variable", "Malgun Gothic", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--accent);
}

header {
  padding: 1.75rem 1.25rem 1rem;
  max-width: 920px;
  margin: 0 auto;
}

header h1 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.disclaimer {
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.82rem;
  color: var(--muted);
}

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

section.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
}

section.card h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

section.card h2 .badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.45rem;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 6px;
}

.grid {
  display: grid;
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.grid-span-2 {
  grid-column: 1 / -1;
}

label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="number"],
input[type="date"],
select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--text);
  font-size: 0.95rem;
}

input:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
}

.field-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.radio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.radio-pill {
  position: relative;
}

.radio-pill input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.radio-pill span {
  display: inline-block;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  background: var(--surface2);
  transition: border-color 0.15s, background 0.15s;
}

.radio-pill input:checked + span {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--text);
}

.person-tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.person-tabs button {
  flex: 1;
  padding: 0.55rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
}

.person-tabs button.active {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--text);
}

.hidden {
  display: none !important;
}

.subsection-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin: 0.5rem 0 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}

.check-grid {
  display: grid;
  gap: 0.5rem;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.88rem;
}

.check-item input {
  margin-top: 0.2rem;
}

.btn-primary {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 10px;
  background: linear-gradient(180deg, #4aa8ff, var(--accent));
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.results {
  border: 1px solid var(--accent);
  background: linear-gradient(165deg, rgba(61, 156, 245, 0.12), var(--surface));
}

.result-block {
  margin-bottom: 1rem;
}

.result-block:last-child {
  margin-bottom: 0;
}

.result-block h3 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
}

.big-number {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.35rem 0;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--border);
}

.result-row:last-child {
  border-bottom: none;
}

.result-row span:last-child {
  font-variant-numeric: tabular-nums;
}

.pill-ok {
  color: var(--ok);
}

.pill-warn {
  color: var(--warn);
}

.pill-bad {
  color: var(--bad);
}

.reason-text {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.5rem;
  padding: 0.65rem;
  background: var(--surface2);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

.schedule-wrap {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 480px;
  overflow-y: auto;
}

.schedule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.schedule-table th,
.schedule-table td {
  padding: 0.4rem 0.65rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}

.schedule-table th:first-child,
.schedule-table td:first-child {
  text-align: center;
}

.schedule-table thead th {
  position: sticky;
  top: 0;
  background: var(--surface2);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.schedule-table tr.grace-row td {
  color: var(--muted);
  font-style: italic;
}

.schedule-table tr.year-end td {
  border-bottom: 2px solid var(--accent);
}

footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
  font-size: 0.78rem;
  color: var(--muted);
}