@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");

:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --card: #ffffff;
  --line: rgba(0, 0, 0, 0.1);
  --accent: #007aff;
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --fg: #f5f5f7;
    --muted: #a1a1a6;
    --card: #1c1c1e;
    --line: rgba(255, 255, 255, 0.16);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
}

[hidden] {
  display: none !important;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  width: min(760px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

.center-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 20px;
}

.center-card {
  width: min(360px, 100%);
  text-align: center;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 56px;
}

.brand {
  color: var(--fg);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 14px;
}

.hero {
  margin-bottom: 34px;
}

.eyebrow {
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 10px;
}

h1 {
  margin: 0;
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: 0;
}

h2 {
  margin: 32px 0 10px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin: 22px 0 8px;
  font-size: 17px;
  line-height: 1.3;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.58;
}

p {
  margin: 0 0 12px;
}

ul {
  margin: 0;
  padding-left: 22px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  margin: 16px 0;
}

.summary-card {
  padding: 24px;
}

.summary-card > p:first-child {
  color: var(--fg);
  font-weight: 700;
  font-size: 18px;
}

.plain-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
}

.plain-list li {
  position: relative;
  padding-left: 24px;
}

.plain-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #34c759;
  font-weight: 800;
}

.service-card {
  margin: 12px 0;
}

.service-card h3,
.contact-card h2 {
  margin-top: 0;
  color: var(--fg);
}

.service-card p:last-child,
.contact-card p:last-child {
  margin-bottom: 0;
}

.contact-card {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 26px;
}

.contact-card h2 {
  margin-bottom: 8px;
  font-size: 22px;
  word-break: break-all;
}

.card-label {
  margin-bottom: 5px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}

.contact-card .button {
  flex: 0 0 auto;
}

.check-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.check-list li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.callout {
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 14px;
  background: rgba(255, 149, 0, 0.12);
  color: var(--fg);
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
  padding: 0;
}

.faq-list summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 19px 34px 19px 0;
  color: var(--fg);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.4;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 24px;
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  padding: 0 34px 18px 0;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-top: 12px;
}

.footer {
  border-top: 1px solid var(--line);
  margin-top: 42px;
  padding-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  box-sizing: border-box;
  text-decoration: none;
}

.button:hover {
  text-decoration: none;
  opacity: 0.92;
}

.button-secondary {
  background: rgba(120, 120, 128, 0.12);
  color: var(--accent);
}

.button-secondary:hover {
  background: rgba(120, 120, 128, 0.2);
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  margin-top: 16px;
}

.app-icon {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.08);
  margin: 0 auto 16px;
  display: block;
  object-fit: cover;
}

@media (max-width: 560px) {
  .page {
    width: min(100% - 32px, 760px);
    padding-top: 32px;
  }

  .site-nav {
    align-items: center;
    margin-bottom: 40px;
  }

  .nav-links {
    justify-content: flex-start;
  }

  h1 {
    font-size: 34px;
  }

  .contact-card {
    align-items: stretch;
    flex-direction: column;
  }

  .contact-card .button {
    width: 100%;
  }

  .check-list {
    grid-template-columns: 1fr;
  }
}