/* =============================================
   Kunhee Theme — Beige Tone, Claude-inspired
   ============================================= */

/* --- Variables --- */
:root {
  --color-bg:         #f5f0e8;
  --color-bg-alt:     #ede8de;
  --color-surface:    #faf7f2;
  --color-border:     #ddd6c8;
  --color-text:       #2d2a24;
  --color-text-muted: #7a7060;
  --color-text-light: #a89e8e;
  --color-accent:     #b07d4a;
  --color-accent-hover: #8f6135;
  --color-link:       #7a5c38;
  --color-link-hover: #4e3920;

  --font-serif: 'Noto Serif KR', 'Georgia', serif;
  --font-sans:  'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;

  --max-width: 720px;
  --header-height: 60px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  --radius: 6px;
  --transition: 0.2s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Links --- */
a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-link-hover);
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.site-header-inner {
  width: 100%;
  max-width: calc(var(--max-width) + 4rem);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-text);
  letter-spacing: 0.02em;
}
.site-title:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  transition: color var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

/* --- Main Content Wrapper --- */
.site-main {
  flex: 1;
  padding: var(--spacing-lg) var(--spacing-md);
}

.content-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* --- Home Hero (타이핑 효과) --- */
.home-hero {
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  text-align: center;
}

.home-title {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  min-height: 1.3em;
  position: relative;
  display: inline-block;
}

/* 타이핑 커서 */
.home-title::after {
  content: '|';
  display: inline-block;
  margin-left: 2px;
  color: var(--color-accent);
  animation: blink 1s step-end infinite;
}
.home-title.typewriter-done::after {
  animation: blink 1s step-end infinite;
  opacity: 1;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.home-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  font-weight: 300;
}

/* --- Post List --- */
.post-list-section {
  margin-top: var(--spacing-lg);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border);
}

.post-list {
  list-style: none;
}

.post-item {
  border-bottom: 1px solid var(--color-border);
}

.post-link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  color: var(--color-text);
  transition: all var(--transition);
}

.post-link:hover {
  color: var(--color-accent);
}

.post-link:hover .post-title {
  padding-left: 6px;
}

.post-title {
  font-size: 1rem;
  font-weight: 400;
  font-family: var(--font-serif);
  transition: padding var(--transition);
}

.post-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  white-space: nowrap;
  flex-shrink: 0;
}

/* --- Post Article --- */
.post {
  padding-top: var(--spacing-md);
}

.post-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.post-header .post-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: var(--spacing-xs);
}

.post-meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-xs);
}

/* --- Post Content Typography --- */
.post-content {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-text);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  line-height: 1.3;
}

.post-content h1 { font-size: 1.8rem; }
.post-content h2 { font-size: 1.4rem; border-bottom: 1px solid var(--color-border); padding-bottom: 0.4rem; }
.post-content h3 { font-size: 1.15rem; }

.post-content p {
  margin-bottom: var(--spacing-sm);
}

.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-border);
  transition: text-decoration-color var(--transition), color var(--transition);
}
.post-content a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: var(--color-accent-hover);
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  margin: var(--spacing-md) 0;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.post-content code {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 0.15em 0.4em;
  font-size: 0.88em;
  font-family: 'Menlo', 'Consolas', monospace;
  color: var(--color-accent-hover);
}

.post-content pre {
  background-color: #2e2a22;
  color: #e8dcc8;
  border-radius: var(--radius);
  padding: var(--spacing-sm) var(--spacing-md);
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  font-size: 0.88em;
  line-height: 1.6;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.post-content ul,
.post-content ol {
  margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-md);
}

.post-content li {
  margin-bottom: 0.3rem;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: var(--spacing-sm) 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
  font-size: 0.9rem;
}

.post-content th {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 0.6rem 0.9rem;
  text-align: left;
  font-weight: 500;
}

.post-content td {
  border: 1px solid var(--color-border);
  padding: 0.6rem 0.9rem;
}

.post-content tr:nth-child(even) {
  background-color: var(--color-surface);
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-lg) 0;
}

/* --- Post Footer --- */
.post-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.back-link {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.back-link:hover {
  color: var(--color-accent);
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md) var(--spacing-md);
  text-align: center;
}

.site-footer-inner {
  max-width: calc(var(--max-width) + 4rem);
  margin: 0 auto;
}

.footer-text {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* --- Responsive --- */
@media (max-width: 600px) {
  html { font-size: 15px; }

  .site-header-inner {
    padding: 0 var(--spacing-sm);
  }

  .site-nav {
    gap: var(--spacing-sm);
  }

  .site-main {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .home-title {
    font-size: 1.8rem;
  }

  .post-link {
    flex-direction: column;
    gap: 0.2rem;
  }

  .post-date {
    font-size: 0.75rem;
  }

  .post-header .post-title {
    font-size: 1.5rem;
  }
}