/* ====================================
   Refined Design System (amasad.me clone)
   ==================================== */
:root {
  /* Global Reading Mode - Light */
  --bg-primary: #f9f7f1;
  --text-primary: #383838;
  --text-secondary: #666666;
  --link-color: #4183c4;
  --system-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --header-font: var(--system-font);
  --body-font: var(--system-font);
  --mono-font: 'Menlo', 'Monaco', 'Courier New', monospace;
}

[data-theme="dark"] {
  /* Global Reading Mode - Dark */
  --bg-primary: #222222;
  --text-primary: #cdc9c3;
  --text-secondary: #a0a0a0;
  --link-color: #64b5f6;
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--body-font);
  font-weight: 400;
  font-size: 20px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  margin: 0 auto;
  padding: 60px 0;
  width: 70%;
  max-width: 100%;
  transition: background-color 0.2s, color 0.2s;
}

body.essay-page {
  margin: 0 auto;
  padding: 60px 0;
  width: 70%;
  max-width: 100%;
  text-align: left;
}

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

a:hover {
  text-decoration: underline;
}

/* Header */
header {
  margin-top: 0;
  margin-bottom: 12px;
  font-family: var(--header-font);
  font-size: 26px;
}

header a {
  color: var(--link-color);
  text-decoration: none;
  font-size: 22px;
  font-weight: 400;
  font-style: normal;
}

/* Navigation */
nav {
  margin-bottom: 18px;
  font-family: var(--header-font);
}

nav a {
  margin-right: 15px;
  color: var(--link-color);
  font-size: 18px;
}

/* Essay List */
.essayList {
  font-family: var(--header-font);
  font-size: 16px;
  color: var(--text-primary);
}

.essayList ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-top: 12px;
}

.essayList li {
  margin-bottom: 10px;
  display: list-item;
}

.essayList li a {
  font-family: var(--body-font);
  font-size: 19px;
  display: inline;
}

.essay-meta {
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-left: 12px;
  white-space: nowrap;
  font-weight: 300;
  opacity: 0.95;
}

/* Pin icon for pinned posts */
.pin-icon {
  font-size: 14px;
  opacity: 0.7;
  margin-left: 6px;
}

/* External link icon */
.external-link-icon {
  font-size: 14px;
  opacity: 0.8;
  margin-left: 6px;
}

/* Essay Content (Article) */
.postContent h1 {
  font-family: var(--header-font);
  font-size: 32px;
  margin-bottom: 10px;
  line-height: 1.2;
  font-weight: normal;
}

.postContent h2 {
  font-family: var(--header-font);
  font-size: 24px;
  margin-top: 40px;
  margin-bottom: 20px;
  font-weight: normal;
}

.postContent h3 {
  font-family: var(--header-font);
  font-size: 20px;
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: normal;
}

.postContent p {
  margin-bottom: 24px;
}

.postContent code {
  font-family: var(--mono-font);
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 0.9em;
}

[data-theme="dark"] .postContent code {
  background: rgba(255, 255, 255, 0.1);
}

.postContent pre {
  background: #f8f8f8;
  padding: 15px;
  overflow-x: auto;
  border-radius: 5px;
  margin-bottom: 24px;
}

[data-theme="dark"] .postContent pre {
  background: #2a2a2a;
}

.postContent pre code {
  background: none;
  padding: 0;
}

.postContent blockquote {
  border-left: 4px solid #eee;
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
}

[data-theme="dark"] .postContent blockquote {
  border-left-color: #444;
}

.postContent img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 30px auto;
}

/* Image float positioning */
.postContent img.img-float-left {
  float: left;
  margin: 10px 20px 10px 0;
  max-width: 50%;
  display: inline;
}

.postContent img.img-float-right {
  float: right;
  margin: 10px 0 10px 20px;
  max-width: 50%;
  display: inline;
}

/* Breadcrumb */
.breadcrumb {
  margin-bottom: 30px;
  font-family: var(--header-font);
  font-size: 14px;
}

/* Utilities */
.loading {
  color: var(--text-secondary);
  font-style: italic;
}

/* Mobile */
@media (max-width: 600px) {
  body {
    padding: 30px 20px;
    width: 90%;
    /* Adjust width for mobile */
  }

  header {
    margin-bottom: 20px;
  }

  /* Disable float on mobile for better readability */
  .postContent img.img-float-left,
  .postContent img.img-float-right {
    float: none;
    margin: 20px auto;
    max-width: 100%;
    display: block;
  }
  /* Mobile: stack title and meta */
  .essayList li {
    display: block;
  }

  .essay-meta {
    display: block;
    margin-left: 0;
    margin-top: 6px;
  }
}