:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --text: #1f2430;
  --muted: #5a6270;
  --brand: #2b2a4d;
  --brand-strong: #1d1b36;
  --border: #e4e7ef;
  --link: #243b7a;
  --max-width: 980px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #fbfcff 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "Pretendard", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
}

.top-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 248, 251, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 8px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.brand-logo {
  width: 34px;
  height: 34px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  object-fit: contain;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 10px;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: #fff;
  color: var(--brand);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.policy-controls {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-left: auto;
}

.lang-btn {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.lang-btn.is-active {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.policy-controls a {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}

.policy-controls a:hover,
.policy-controls a:focus-visible {
  color: var(--brand);
  border-color: var(--brand);
}

.policy-controls a[aria-current="page"] {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.menu-toggle {
  display: none;
}

main {
  padding-bottom: 48px;
}

.hero {
  padding: 84px 0 48px;
}

.hero h1 {
  max-width: 18ch;
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  word-break: keep-all;
  text-wrap: balance;
}

.hero p {
  max-width: 56ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--brand);
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.button-link:hover,
.button-link:focus-visible {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.button-link.secondary {
  background: #fff;
  color: var(--brand);
  border-color: var(--border);
}

.button-link.secondary:hover,
.button-link.secondary:focus-visible {
  background: #fff;
  color: var(--brand);
  border-color: var(--brand);
}

.section {
  padding: 36px 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.section h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.section p {
  margin: 0;
  color: var(--muted);
}

.list,
.feature-columns {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.list > div,
.feature-column {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.76);
}

.feature-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-column ul,
.steps {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--text);
}

.feature-column li,
.steps li {
  margin: 8px 0;
}

.note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.flow-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 8px;
  margin-top: 16px;
}

.flow-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font-weight: 600;
}

.flow-arrow {
  color: var(--muted);
  font-weight: 700;
}

.contact-section {
  padding-bottom: 52px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.contact-card {
  display: grid;
  gap: 14px;
  height: 100%;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
}

.contact-label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.95rem;
  color: var(--muted);
}

.contact-email {
  margin: 0;
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.contact-email a {
  color: var(--brand);
  text-decoration: none;
}

.contact-email a:hover,
.contact-email a:focus-visible {
  text-decoration: underline;
}

.contact-note {
  margin: 0;
  color: var(--muted);
}

.contact-support-meta {
  margin: 0;
  color: var(--text);
  font-weight: 700;
}

.contact-support-link {
  margin: 0;
}

.contact-support-link a {
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
}

.contact-support-link a:hover,
.contact-support-link a:focus-visible {
  text-decoration: underline;
}

.support-grid {
  margin-top: 24px;
}

.support-list {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--text);
}

.support-list li {
  margin: 8px 0;
}

.support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.support-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
}

.support-actions a:hover,
.support-actions a:focus-visible {
  border-color: var(--brand);
}

.footer {
  padding: 28px 0 48px;
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer p {
  margin: 6px 0;
  color: var(--muted);
}

.footer strong {
  color: var(--text);
}

.footer a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.policy-layout {
  padding: 48px 0 72px;
}

.policy-card {
  padding: 28px 24px 32px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: #fff;
}

.policy-card > h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  line-height: 1.2;
}

.policy-meta {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.policy-content {
  color: var(--text);
}

.policy-content h1 {
  margin: 0 0 18px;
  font-size: 1.9rem;
  line-height: 1.25;
}

.policy-content h2 {
  margin: 28px 0 12px;
  font-size: 1.35rem;
}

.policy-content h3 {
  margin: 20px 0 8px;
  font-size: 1.1rem;
}

.policy-content h4 {
  margin: 16px 0 6px;
  font-size: 1rem;
}

.policy-content p,
.policy-content li {
  color: var(--text);
}

.policy-content p,
.policy-content ul,
.policy-content ol,
.policy-content table {
  margin: 0 0 16px;
}

.policy-content ul,
.policy-content ol {
  padding-left: 20px;
}

.policy-content hr {
  margin: 28px 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.policy-content a {
  color: var(--link);
  word-break: break-word;
}

.policy-content table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
}

.policy-content th,
.policy-content td {
  min-width: 120px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.policy-content thead th {
  background: #f6f8fc;
}

@media (max-width: 860px) {
  .nav-inner {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }

  .lang-toggle {
    margin-left: auto;
  }

  .policy-controls {
    width: 100%;
    justify-content: flex-start;
    margin-left: 0;
    order: 3;
  }

  .hero {
    padding-top: 64px;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-actions {
    align-items: stretch;
  }

  .list,
  .feature-columns,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .flow-steps {
    align-items: flex-start;
  }

  .flow-arrow {
    display: none;
  }

  .policy-card {
    padding: 24px 18px;
    border-radius: 20px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 24px, var(--max-width));
  }

  .nav-links a {
    padding: 4px 0;
  }

  .hero p {
    font-size: 1rem;
  }

  .section,
  .policy-layout {
    padding-top: 28px;
    padding-bottom: 28px;
  }
}