:root {
  --bg: #f7faf8;
  --surface: #ffffff;
  --surface2: #f5faf7;
  --border: #d8e8df;
  --text: #193126;
  --muted: #5f7d6f;
  --accent: #1d9e75;
  --accent-dim: rgba(29, 158, 117, 0.12);
  --ok: #128a56;
  --warn: #d38d08;
  --bad: #d64545;
  --radius: 12px;
  --font: "Pretendard Variable", "Malgun Gothic", system-ui, sans-serif;
  /* Primary CTA — single hue (no blue), deep teal */
  --btn-primary-top: #4a8274;
  --btn-primary-mid: #356b5e;
  --btn-primary-bottom: #2a554a;
  --btn-primary-border: rgba(18, 44, 38, 0.38);
  --btn-primary-shadow: 0 8px 22px rgba(32, 72, 62, 0.2);
  --btn-primary-shadow-hover: 0 10px 28px rgba(32, 72, 62, 0.28);
}

*,
*::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;
  background: linear-gradient(160deg, rgba(29, 158, 117, 0.14), rgba(29, 158, 117, 0.04));
  border: 1px solid var(--border);
  border-radius: 0 0 18px 18px;
  box-shadow: 0 10px 26px rgba(19, 57, 42, 0.08);
}

header h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: #114533;
}

header p {
  margin: 0;
  color: #456d5b;
  font-size: 0.9rem;
}

.quick-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.quick-nav a {
  display: inline-block;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface2);
  color: var(--text);
  text-decoration: none;
  font-size: 0.78rem;
}

.quick-nav a:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.cross-nav-row {
  margin-top: 0.8rem;
}

.cross-nav-cta {
  display: inline-block;
  padding: 0.72rem 1.15rem;
  border: 1px solid var(--btn-primary-border);
  border-radius: 12px;
  background: linear-gradient(
    165deg,
    var(--btn-primary-top) 0%,
    var(--btn-primary-mid) 48%,
    var(--btn-primary-bottom) 100%
  );
  color: #f4faf8;
  text-decoration: none;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  box-shadow: var(--btn-primary-shadow);
  transition: box-shadow 0.18s ease, filter 0.18s ease, transform 0.18s ease;
}

.cross-nav-cta:hover {
  filter: brightness(1.06);
  box-shadow: var(--btn-primary-shadow-hover);
  transform: translateY(-1px);
}

.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;
}

section.card h2 .section-note {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: -0.005em;
  line-height: 1.4;
  flex: 1 1 100%;
  margin-top: 0.15rem;
}

@media (min-width: 640px) {
  section.card h2 {
    flex-wrap: wrap;
  }
  section.card h2 .section-note {
    flex: 1 1 auto;
    margin-top: 0;
  }
}

.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;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.person-tabs button {
  flex: 1 1 calc(50% - 0.35rem);
  min-width: 0;
  padding: 0.55rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--muted);
  white-space: nowrap;
  font-size: 0.9rem;
  cursor: pointer;
}

@media (min-width: 640px) {
  .person-tabs button {
    flex: 1 1 0;
  }
}

.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: 1px solid var(--btn-primary-border);
  border-radius: 10px;
  background: linear-gradient(
    165deg,
    var(--btn-primary-top) 0%,
    var(--btn-primary-mid) 48%,
    var(--btn-primary-bottom) 100%
  );
  color: #f4faf8;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--btn-primary-shadow);
  transition: box-shadow 0.18s ease, filter 0.18s ease, transform 0.18s ease;
}

.btn-primary:hover {
  filter: brightness(1.05);
  box-shadow: var(--btn-primary-shadow-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  margin-top: 0.5rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.label-with-calc {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.label-with-calc label {
  margin: 0;
}

.label-with-calc .btn-secondary {
  margin-top: 0;
  flex-shrink: 0;
}

.annual-preview {
  margin: 0.4rem 0 0;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  min-height: 1.35em;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
}

.modal-overlay.hidden {
  display: none;
}

.modal-box {
  width: 100%;
  max-width: 22rem;
  padding: 1.15rem 1.25rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.modal-title {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

.modal-total-line {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.modal-total-line strong {
  font-size: 1.1rem;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.modal-input-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

#salary-calc-input {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 1rem;
  margin-bottom: 0.85rem;
}

.modal-calc-actions {
  display: flex;
  align-items: stretch;
  gap: 0.65rem;
}

.btn-calc-plus {
  flex: 0 0 3rem;
  min-height: 2.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface2);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  color: var(--text);
}

.btn-calc-plus:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.modal-done {
  flex: 1;
  margin: 0;
  min-height: 2.65rem;
}

.results {
  border: 1px solid rgba(53, 107, 94, 0.35);
  background: linear-gradient(165deg, rgba(53, 107, 94, 0.09), 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);
}

.docs-category {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface2);
}

.docs-category + .docs-category {
  margin-top: 0.75rem;
}

.docs-category h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.doc-list {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.55;
}

.doc-list > li {
  margin: 0.2rem 0;
}

.doc-list > li + li {
  margin-top: 0.35rem;
}

.doc-sublist {
  margin: 0.3rem 0 0.2rem;
  padding-left: 1.1rem;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

.doc-sublist > li {
  margin: 0.1rem 0;
}

.doc-list .muted,
.doc-sublist .muted,
.muted {
  color: var(--muted);
  font-weight: 400;
}

.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;
}

.seo-faq .faq-list {
  display: grid;
  gap: 0.55rem;
}

.seo-faq details {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface2);
  padding: 0.55rem 0.75rem;
}

.seo-faq summary {
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  list-style: none;
}

.seo-faq summary::-webkit-details-marker {
  display: none;
}

.seo-faq summary::before {
  content: "+";
  display: inline-block;
  margin-right: 0.45rem;
  color: var(--accent);
  font-weight: 700;
}

.seo-faq details[open] summary::before {
  content: "-";
}

.seo-faq details p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.guide-links {
  display: grid;
  gap: 0.55rem;
}

.guide-links a {
  display: block;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface2);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
}

.guide-links a:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.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);
}

footer .footer-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.35rem;
}

footer .footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.35rem;
}

footer a {
  color: #2e6750;
  text-decoration: underline;
  text-underline-offset: 2px;
}

footer a:hover {
  color: #ffffff;
}

footer .footer-cta-link {
  padding: 0.38rem 0.72rem;
  border: 1px solid rgba(53, 107, 94, 0.4);
  border-radius: 999px;
  background: rgba(53, 107, 94, 0.1);
  color: #1f4038;
  text-decoration: none;
  font-weight: 700;
}

footer .footer-cta-link:hover {
  background: rgba(53, 107, 94, 0.16);
  border-color: var(--btn-primary-mid);
  color: #142c26;
}

footer .footer-note {
  color: var(--muted);
}

/* —— Hub (service selection) —— */
.hub-main {
  padding-bottom: 2.5rem;
}

.hub-lead {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 40rem;
}

.hub-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .hub-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.hub-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 100%;
}

.hub-card-title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 700;
  color: #114533;
  letter-spacing: -0.02em;
}

.hub-card-desc {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  flex: 1;
}

.hub-card-actions {
  margin-top: 0.35rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

a.hub-btn-primary {
  display: inline-block;
  padding: 0.65rem 1.1rem;
  border-radius: 10px;
  background: linear-gradient(
    165deg,
    var(--btn-primary-top) 0%,
    var(--btn-primary-mid) 48%,
    var(--btn-primary-bottom) 100%
  );
  color: #f4faf8 !important;
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid var(--btn-primary-border);
  box-shadow: var(--btn-primary-shadow);
  transition: box-shadow 0.18s ease, filter 0.18s ease, transform 0.18s ease;
}

a.hub-btn-primary:hover {
  filter: brightness(1.06);
  box-shadow: var(--btn-primary-shadow-hover);
  transform: translateY(-1px);
}

a.hub-btn-secondary {
  display: inline-block;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  background: #ffffff;
  color: #1f4038 !important;
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid rgba(53, 107, 94, 0.4);
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

a.hub-btn-secondary:hover {
  background: rgba(53, 107, 94, 0.08);
  border-color: var(--btn-primary-mid);
  transform: translateY(-1px);
}

span.hub-soon {
  display: inline-block;
  padding: 0.55rem 0.95rem;
  border-radius: 10px;
  border: 1px dashed rgba(53, 107, 94, 0.35);
  background: rgba(53, 107, 94, 0.06);
  color: #4a6b62;
  font-size: 0.82rem;
  font-weight: 600;
}