:root {
  --tiktok-black: #0b0b0f;
  --tiktok-cyan: #69c9d0;
  --tiktok-pink: #ee1d52;
  --tiktok-white: #f8f8f8;
  --tiktok-card: #14141c;
  --tiktok-line: rgba(255, 255, 255, 0.08);
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body.theme-tiktok {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", system-ui, sans-serif;
  color: var(--tiktok-white);
  background: radial-gradient(circle at top left, rgba(105, 201, 208, 0.18), transparent 50%),
    radial-gradient(circle at top right, rgba(238, 29, 82, 0.18), transparent 50%),
    var(--tiktok-black);
}

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

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(10, 10, 16, 0.9);
  border-bottom: 1px solid var(--tiktok-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.4px;
}

.nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

.nav a {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.nav a[aria-current="page"] {
  border-color: rgba(105, 201, 208, 0.6);
  box-shadow: 0 0 12px rgba(105, 201, 208, 0.4);
}

.hero {
  padding: 100px 0 80px;
}

.hero-inner {
  display: grid;
  gap: 18px;
}

.hero-split {
  padding-bottom: 40px;
}

.hero-split-inner {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero-card {
  background: var(--tiktok-card);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 18px 0;
  display: grid;
  gap: 10px;
}

.checklist li {
  padding-left: 24px;
  position: relative;
  color: rgba(248, 248, 248, 0.75);
}

.checklist li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--tiktok-cyan);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(238, 29, 82, 0.15);
  border: 1px solid rgba(238, 29, 82, 0.4);
  font-size: 0.85rem;
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  margin: 0;
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(248, 248, 248, 0.8);
  max-width: 560px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: none;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--tiktok-white);
}

.btn.primary {
  background: linear-gradient(120deg, var(--tiktok-cyan), var(--tiktok-pink));
  box-shadow: var(--shadow);
  font-weight: 600;
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn.subtle {
  background: rgba(105, 201, 208, 0.15);
}

.section {
  padding: 72px 0;
}

.section.muted {
  background: rgba(20, 20, 28, 0.9);
  border-top: 1px solid var(--tiktok-line);
  border-bottom: 1px solid var(--tiktok-line);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.stat-card {
  background: rgba(20, 20, 28, 0.8);
  border-radius: 14px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-card h3 {
  margin: 0;
  font-size: 1.4rem;
}

.stat-card p {
  margin: 4px 0 0;
  color: rgba(248, 248, 248, 0.6);
  font-size: 0.85rem;
}

.link {
  color: rgba(248, 248, 248, 0.7);
  font-size: 0.95rem;
}

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

.card {
  background: var(--tiktok-card);
  border-radius: 18px;
  padding: 20px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: rgba(248, 248, 248, 0.7);
}

.card .meta {
  display: flex;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(248, 248, 248, 0.5);
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.topic-card {
  background: var(--tiktok-card);
  border-radius: 16px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.topic-card h3 {
  margin: 0 0 8px;
}

.topic-card p {
  margin: 0;
  color: rgba(248, 248, 248, 0.7);
}

.pill {
  background: rgba(238, 29, 82, 0.15);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  align-items: center;
}

.panel {
  background: var(--tiktok-card);
  padding: 22px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(105, 201, 208, 0.2);
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(20, 20, 28, 0.8);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.timeline-time {
  font-size: 0.85rem;
  color: rgba(105, 201, 208, 0.8);
  font-weight: 600;
}

.list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: rgba(248, 248, 248, 0.7);
}

.muted-text {
  color: rgba(248, 248, 248, 0.6);
}

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

.value-grid {
  margin-top: 18px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.value-card {
  background: rgba(20, 20, 28, 0.75);
  border-radius: 14px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-panel {
  display: none;
  background: var(--tiktok-card);
  border-radius: 18px;
  padding: 24px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(105, 201, 208, 0.2);
}

.blog-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.blog-hero-actions {
  display: grid;
  gap: 12px;
  justify-items: flex-end;
}

.tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(238, 29, 82, 0.4);
  font-size: 0.8rem;
}

.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: 24px;
  align-items: start;
}

.blog-feed {
  display: grid;
  gap: 20px;
}

.blog-aside {
  display: grid;
  gap: 16px;
}

.highlight-card {
  border: 1px solid rgba(238, 29, 82, 0.4);
  box-shadow: 0 0 18px rgba(238, 29, 82, 0.2);
}

.aside-list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: rgba(248, 248, 248, 0.7);
}

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

.form {
  display: grid;
  gap: 16px;
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row input,
.form-row textarea {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(105, 201, 208, 0.3);
  font-size: 0.95rem;
  background: rgba(10, 10, 16, 0.6);
  color: var(--tiktok-white);
}

.form-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.helper {
  font-size: 0.85rem;
  color: rgba(248, 248, 248, 0.5);
  margin: 0;
}

.post {
  background: var(--tiktok-card);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: 24px;
  align-items: start;
}

.post-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.post-lead {
  font-size: 1.1rem;
  color: rgba(248, 248, 248, 0.75);
}

.post-content {
  display: grid;
  gap: 16px;
  line-height: 1.7;
  color: rgba(248, 248, 248, 0.8);
}

.post-footer {
  margin-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.author-card {
  background: rgba(20, 20, 28, 0.75);
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.post-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.post-aside {
  display: grid;
  gap: 16px;
}

.toc {
  margin: 12px 0 0;
  padding-left: 18px;
  color: rgba(248, 248, 248, 0.7);
}

.newsletter {
  border-top: 1px solid var(--tiktok-line);
}

.newsletter-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.newsletter-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.newsletter-form input {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(105, 201, 208, 0.3);
  background: rgba(10, 10, 16, 0.6);
  color: var(--tiktok-white);
  min-width: 220px;
}

blockquote {
  margin: 0;
  padding: 14px 18px;
  border-left: 4px solid var(--tiktok-pink);
  background: rgba(238, 29, 82, 0.12);
  border-radius: 12px;
}

.site-footer {
  padding: 30px 0 40px;
  border-top: 1px solid var(--tiktok-line);
  background: rgba(10, 10, 16, 0.95);
}

.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: 720px) {
  .header-inner {
    flex-direction: column;
    gap: 12px;
  }

  .hero-cta,
  .nav,
  .section-header,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .blog-layout,
  .post-layout {
    grid-template-columns: 1fr;
  }

  .blog-hero-actions {
    justify-items: flex-start;
  }
}