:root {
  --bg-color: #ffffff;
  --text-color: #000000;
  --bio-color: #333333;
  --desc-color: #444444;
  --border-color: #000000;
  --footer-color: #555555;
  --link-hover-bg: #000000;
  --link-hover-color: #ffffff;
  --code-bg: rgba(0, 0, 0, 0.04);
  --code-border: rgba(0, 0, 0, 0.15);
  --card-bg: rgba(0, 0, 0, 0.02);
  --modal-overlay: rgba(0, 0, 0, 0.5);
  --success-color: #15803d;
  --success-bg: rgba(34, 197, 94, 0.1);
  --danger-color: #dc2626;
  --danger-bg: rgba(239, 68, 68, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-color: #0d0e12;
    --text-color: #f3f4f6;
    --bio-color: #a1a1aa;
    --desc-color: #94a3b8;
    --border-color: #27272a;
    --footer-color: #71717a;
    --link-hover-bg: #f3f4f6;
    --link-hover-color: #0d0e12;
    --code-bg: rgba(255, 255, 255, 0.06);
    --code-border: rgba(255, 255, 255, 0.12);
    --card-bg: rgba(255, 255, 255, 0.02);
    --modal-overlay: rgba(0, 0, 0, 0.75);
    --success-color: #4ade80;
    --success-bg: rgba(34, 197, 94, 0.15);
    --danger-color: #f87171;
    --danger-bg: rgba(239, 68, 68, 0.15);
  }
}

[data-theme="dark"] {
  --bg-color: #0d0e12;
  --text-color: #f3f4f6;
  --bio-color: #a1a1aa;
  --desc-color: #94a3b8;
  --border-color: #27272a;
  --footer-color: #71717a;
  --link-hover-bg: #f3f4f6;
  --link-hover-color: #0d0e12;
  --code-bg: rgba(255, 255, 255, 0.06);
  --code-border: rgba(255, 255, 255, 0.12);
  --card-bg: rgba(255, 255, 255, 0.02);
  --modal-overlay: rgba(0, 0, 0, 0.75);
  --success-color: #4ade80;
  --success-bg: rgba(34, 197, 94, 0.15);
  --danger-color: #f87171;
  --danger-bg: rgba(239, 68, 68, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 40px 20px;
  font-size: 16px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.container {
  max-width: 680px;
  margin: 0 auto;
}

/* Links & Inverted Hover States */
a {
  color: var(--text-color);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

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

.nav-back {
  display: inline-block;
  font-family: monospace;
  font-size: 0.95rem;
  margin-bottom: 20px;
  text-decoration: none;
}

.nav-back:hover {
  text-decoration: none;
}

/* Header */
header {
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 25px;
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.5px;
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
}

h1 a {
  text-decoration: none;
  color: var(--text-color);
}
h1 a:hover {
  background: none;
  color: var(--text-color);
}

.brand-alias-container {
  display: inline-flex;
  align-items: baseline;
}

.brand-sep {
  color: var(--desc-color);
  font-weight: 400;
  margin: 0 1px 0 2px;
  user-select: none;
}

.brand-alias-link {
  color: var(--text-color);
  text-decoration: none;
}

.brand-alias-link:hover {
  background: none !important;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-author-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.bracket-btn-xs {
  background: transparent;
  border: 1px solid var(--border-color);
  font-family: monospace;
  font-size: 0.76rem;
  color: var(--text-color);
  cursor: pointer;
  padding: 1px 6px;
  border-radius: 3px;
  line-height: 1.2;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.bracket-btn-xs:hover {
  background-color: var(--link-hover-bg);
  color: var(--link-hover-color);
  text-decoration: none;
}

.pub-short {
  font-family: monospace;
  font-size: 0.78rem;
  color: var(--desc-color);
}

.meta-sep {
  color: var(--footer-color);
  margin: 0 2px;
}

.bio {
  font-family: monospace;
  font-size: 1rem;
  color: var(--bio-color);
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.relay-status {
  font-family: monospace;
  font-size: 0.82rem;
  color: var(--footer-color);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  background-color: #f59e0b; /* amber when connecting */
  transition: background-color 0.3s ease;
}

.status-dot.online {
  background-color: #22c55e; /* green when connected */
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.6);
}

/* Bracket Buttons */
.bracket-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  font-family: monospace;
  font-size: 0.88rem;
  color: var(--text-color);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 4px;
  line-height: 1.2;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.bracket-btn:hover {
  background-color: var(--link-hover-bg);
  color: var(--link-hover-color);
  text-decoration: none;
}

.bracket-btn.btn-danger {
  border-color: var(--danger-color);
  color: var(--danger-color);
}

.bracket-btn.btn-danger:hover {
  background-color: var(--danger-color);
  color: #ffffff;
}

.bracket-btn:focus-visible {
  outline: 2px solid var(--text-color);
  outline-offset: 2px;
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: monospace;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.status-badge.badge-tag {
  background-color: var(--code-bg);
  border-color: var(--border-color);
  color: var(--bio-color);
  text-transform: none;
}

.auth-badge {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--success-color);
  background-color: var(--success-bg);
  border: 1px solid var(--success-color);
  padding: 3px 8px;
  border-radius: 4px;
}

/* Section Headings */
h2 {
  font-size: 1.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 4px;
}

/* Post Items List */
.posts-list {
  list-style-type: none;
  padding-left: 0;
  margin: 0;
}

.post-item {
  margin-bottom: 30px;
  padding-bottom: 25px;
  border-bottom: 1px dashed var(--border-color);
  display: flex;
  flex-direction: column;
}

.post-item:last-child {
  border-bottom: none;
}

.post-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--footer-color);
  margin-bottom: 6px;
  flex-wrap: wrap;
  gap: 8px;
}

.post-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 8px 0;
}

.post-title a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-excerpt {
  font-size: 1rem;
  color: var(--desc-color);
  margin: 0 0 12px 0;
  line-height: 1.5;
}

.post-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.post-actions {
  display: flex;
  gap: 6px;
}

/* Empty / Loading States */
.empty-state {
  font-family: monospace;
  padding: 40px 20px;
  text-align: center;
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  color: var(--bio-color);
}

.empty-state p {
  margin: 0 0 15px 0;
}

/* Single Post View */
.single-post {
  display: none;
}

.single-post.active {
  display: block;
}

.single-post-header {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.single-post-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 10px 0 15px 0;
}

.single-post-meta {
  font-family: monospace;
  font-size: 0.88rem;
  color: var(--footer-color);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* Markdown Content Styling */
.post-content {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-color);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
  font-weight: 700;
  margin-top: 1.8em;
  margin-bottom: 0.8em;
  line-height: 1.3;
}

.post-content h1 { font-size: 1.7rem; border-bottom: 1px solid var(--border-color); padding-bottom: 6px; }
.post-content h2 { font-size: 1.4rem; text-transform: none; letter-spacing: 0; }
.post-content h3 { font-size: 1.2rem; }
.post-content h4 { font-size: 1.05rem; }

.post-content p {
  margin: 0 0 1.4em 0;
}

.post-content ul,
.post-content ol {
  padding-left: 24px;
  margin: 0 0 1.4em 0;
}

.post-content li {
  margin-bottom: 6px;
}

.post-content blockquote {
  margin: 0 0 1.4em 0;
  padding: 10px 18px;
  border-left: 3px solid var(--border-color);
  color: var(--desc-color);
  font-style: italic;
  background-color: var(--card-bg);
}

.post-content hr {
  border: none;
  border-top: 1px dashed var(--border-color);
  margin: 35px 0;
}

.post-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.9em;
  background-color: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 2px 6px;
  border-radius: 3px;
}

.post-content pre {
  background-color: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 0 0 1.6em 0;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  display: block;
}

/* Modals & Drawers */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--modal-overlay);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal.is-open {
  display: flex;
}

.modal-card {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  padding: 24px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.modal-title {
  font-family: monospace;
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-family: monospace;
  font-size: 0.88rem;
  margin-bottom: 6px;
  color: var(--text-color);
}

.form-input,
.form-textarea {
  width: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s ease;
}

.form-textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  resize: vertical;
  min-height: 220px;
  line-height: 1.5;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--text-color);
  box-shadow: 0 0 0 1px var(--text-color);
}

.editor-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.editor-preview {
  display: none;
  min-height: 220px;
  max-height: 400px;
  overflow-y: auto;
  border: 1px dashed var(--border-color);
  padding: 12px;
  border-radius: 4px;
  background-color: var(--card-bg);
}

.editor-preview.active {
  display: block;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.alert-box {
  padding: 8px 12px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.85rem;
  margin-bottom: 15px;
  display: none;
}

.alert-box.alert-error {
  display: block;
  color: var(--danger-color);
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-color);
}

.alert-box.alert-success {
  display: block;
  color: var(--success-color);
  background-color: var(--success-bg);
  border: 1px solid var(--success-color);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--text-color);
  color: var(--bg-color);
  font-family: monospace;
  font-size: 0.88rem;
  padding: 8px 16px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 2000;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Footer */
footer {
  margin-top: 70px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  padding-bottom: 30px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  color: var(--footer-color);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-brand {
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.88rem;
}

.footer-author {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  color: var(--desc-color);
  font-size: 0.8rem;
}

.footer-author-link {
  font-weight: 700;
  color: var(--text-color);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-sublink {
  color: var(--bio-color);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-author-link:hover,
.footer-sublink:hover {
  background-color: var(--link-hover-bg);
  color: var(--link-hover-color);
  text-decoration: none;
}

.footer-sep {
  color: var(--border-color);
  opacity: 0.4;
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  text-align: right;
}

.sys-status {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  color: var(--text-color);
  margin: 0;
}

.footer-meta {
  font-size: 0.76rem;
  color: var(--desc-color);
}

@media (max-width: 600px) {
  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .footer-right {
    align-items: flex-start;
    text-align: left;
  }
}