/*
  New stylesheet for thada.com
  Inspired by the theme from test_files/main.css
*/

:root {
  --bg-color: #1c1c1d;
  --text-color: #e8e8e8;
  --text-color-light: #828282;
  --theme-color: #2698ba;
  --hover-color: #38b6e8;
  --divider-color: #424246;
  --card-bg-color: #212529;
  --footer-bg-color: #1c1c1d;
  --footer-text-color: #e8e8e8;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2rem;
}

/* --- Navigation --- */
.navbar {
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--divider-color);
  background-color: rgba(28, 28, 29, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1140px;
  margin: 0 auto;
}

.nav-brand {
  font-weight: bold;
  font-size: 1.2rem;
}

.nav-links a, .lang-switch {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  cursor: pointer;
  border: none;
  background: none;
  font-size: 1rem;
}

.nav-links a:hover, .lang-switch:hover {
  color: var(--hover-color);
}

/* --- About Section --- */
.about {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.profile-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  align-items: start;
}

.profile-pic img {
  width: 100%;
  max-width: 250px;
  border-radius: 8px;
  border: 3px solid var(--divider-color);
}

.profile-text h1 {
  font-size: 2.5rem;
  color: var(--theme-color);
  margin-bottom: 1rem;
}

.profile-text .bio {
  font-size: 1.1rem;
  line-height: 1.7;
}

.social-links {
  margin-top: 2rem;
}

.social-links a {
  margin-right: 1.5rem;
  color: var(--text-color-light);
  text-decoration: none;
  font-size: 1.5rem; /* Icon size */
}

.social-links a:hover {
  color: var(--hover-color);
}

.jp-name {
  font-size: 0.7em;
  color: var(--text-color-light);
  font-weight: normal;
}

/* --- Publications Section --- */
.publications {
  padding-top: 4rem;
  padding-bottom: 4rem;
  border-top: 1px solid var(--divider-color);
}

.publications h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: var(--theme-color);
}

#notes-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.item {
  background: var(--card-bg-color);
  border: 1px solid var(--divider-color);
  border-radius: 8px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.item:hover {
  transform: translateY(-5px);
  border-color: var(--theme-color);
}

.item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

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

.item .subtle {
  font-size: 0.9rem;
  color: var(--text-color-light);
  margin-top: 0.5rem;
}

.tag {
    display: inline-block;
    border: 1px solid var(--divider-color);
    padding: .1rem .45rem;
    border-radius: 999px;
    font-size: 11px;
    margin-right: 6px;
}

/* --- Footer --- */
.footer {
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
  border-top: 1px solid var(--divider-color);
  color: var(--text-color-light);
  font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .profile-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .profile-pic {
    margin-bottom: 2rem;
  }
  .profile-pic img {
    margin: 0 auto;
  }
}

/* --- Prose (for Markdown content) --- */
.prose {
    max-width: 800px;
}

.prose h1, .prose h2, .prose h3, .prose h4, .prose h5, .prose h6 {
    color: var(--text-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.prose h1 {
    font-size: 2.2rem;
    border-bottom: 1px solid var(--divider-color);
    padding-bottom: 0.5rem;
}

.prose h2 {
    font-size: 1.8rem;
    border-bottom: 1px solid var(--divider-color);
    padding-bottom: 0.4rem;
}

.prose h3 {
    font-size: 1.4rem;
}

.prose p, .prose ul, .prose ol {
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.prose a {
    color: var(--theme-color);
    text-decoration: none;
    border-bottom: 1px solid var(--theme-color);
}

.prose a:hover {
    color: var(--hover-color);
    border-bottom-color: var(--hover-color);
}

.prose code {
    background-color: var(--card-bg-color);
    color: var(--text-color);
    padding: 0.2em 0.4em;
    margin: 0;
    font-size: 85%;
    border-radius: 3px;
}

.prose pre {
    background-color: var(--card-bg-color);
    border: 1px solid var(--divider-color);
    padding: 1em;
    border-radius: 8px;
    overflow-x: auto;
}

.prose pre code {
    padding: 0;
    margin: 0;
    font-size: 100%;
    background: none;
}

.prose blockquote {
    border-left: 3px solid var(--theme-color);
    padding-left: 1em;
    margin-left: 0;
    color: var(--text-color-light);
}

.prose ul, .prose ol {
    padding-left: 2em;
}

.prose img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}