:root {
  --bg: #0e1117;
  --panel: #151a23;
  --line: #232a36;
  --text: #e5e7eb;
  --muted: #9aa4b2;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.15);
  --shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body.lost-theme {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.topbar {
  background: rgba(14, 17, 23, 0.92);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  padding: 8px 10px;
  border-radius: 10px;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.main-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-weight: 600;
}

.main-nav a[aria-current="page"] {
  color: var(--accent);
}

.btn {
  border: none;
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
}

.btn.primary {
  background: var(--accent);
  color: #0b1220;
  border-color: transparent;
}

.btn.ghost {
  background: transparent;
}

.hero {
  padding: 70px 0 40px;
}

.hero-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.eyebrow {
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  font-size: 0.8rem;
}

.hero-sub {
  color: var(--muted);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.hero-panel {
  background: var(--panel);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.status-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin-bottom: 16px;
}

.status-grid div {
  background: #0f1520;
  border-radius: 10px;
  padding: 12px;
}

.checklist {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.section {
  padding: 50px 0;
}

.section.muted {
  background: #10151f;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.command-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.command-card {
  background: var(--panel);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--line);
}

.post-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.post-card {
  background: var(--panel);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--line);
}

.split-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.panel {
  background: var(--panel);
  border-radius: 12px;
  padding: 18px;
  border: 1px solid var(--line);
}

.list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.muted-text {
  color: var(--muted);
}

.page {
  padding: 50px 0 70px;
}

.page-hero {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
  margin-bottom: 28px;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  background: var(--panel);
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
}

.blog-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 2fr) minmax(220px, 1fr);
}

.post-list {
  display: grid;
  gap: 14px;
}

.side-panel {
  display: grid;
  gap: 14px;
}

.admin-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.form {
  display: grid;
  gap: 10px;
}

.form input,
.form textarea {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0b1220;
  color: var(--text);
}

.admin-panel {
  display: none;
}

.admin-panel.active {
  display: block;
}

.admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.admin-posts {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #0b1220;
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 12px;
}

@media (max-width: 900px) {
  .blog-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}