/* ============================================
   Blog by NousVault — styles.css
   NousVault design tokens + blog typography
   ============================================ */

/* --- Tokens --- */
:root {
  --color-canvas:       #F5F0E8;
  --color-panel:        #EDEAE3;
  --color-panel-deep:   #E3DED5;
  --color-accent:       #6EAF96;
  --color-accent-hover: #5A9880;
  --color-text:         #1A1A1A;
  --color-text-muted:   #6B6560;
  --color-border:       #D4CFC7;
  --color-surface:      #FFFFFF;
  --color-tag-bg:       #E3DED5;
  --color-tag-text:     #6B6560;

  --font-display: 'EB Garamond', Georgia, serif;
  --font-body:    system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  --text-xs:   12px;
  --text-sm:   14px;
  --text-base: 16px;
  --text-lg:   18px;
  --text-xl:   24px;
  --text-2xl:  32px;
  --text-3xl:  42px;

  --leading-tight:  1.25;
  --leading-normal: 1.5;
  --leading-loose:  1.75;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-pill: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08);

  --duration-fast:   150ms;
  --duration-normal: 200ms;
  --ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);
}

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

html { font-size: var(--text-base); -webkit-text-size-adjust: 100%; }

body {
  background: var(--color-canvas);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header --- */
header {
  padding: 48px 0 32px;
}

.site-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-title:hover {
  color: var(--color-accent);
  transition: color var(--duration-fast) var(--ease-out);
}

/* --- Search --- */
.search-wrap {
  margin-bottom: 32px;
}

.search-input {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.search-input::placeholder { color: var(--color-text-muted); }

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(110, 175, 150, 0.15);
}

.search-empty {
  display: none;
  padding: 16px 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- Post list --- */
.post-list {
  list-style: none;
}

.post-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.post-date {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 90px;
}

.post-tag {
  font-size: 11px;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--color-tag-text);
  background: var(--color-tag-bg);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.post-title-link {
  font-size: var(--text-base);
  color: var(--color-text);
  text-decoration: none;
  line-height: var(--leading-normal);
}

.post-title-link:hover {
  color: var(--color-accent);
  transition: color var(--duration-fast) var(--ease-out);
}

/* --- Post page --- */
.post-header {
  margin-bottom: 40px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.post-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, var(--text-3xl));
  font-weight: 500;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* --- Post body --- */
.post-body {
  font-size: var(--text-lg);
  line-height: var(--leading-loose);
  color: var(--color-text);
}

.post-body p { margin-bottom: 24px; }

.post-body h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
  margin: 48px 0 16px;
  color: var(--color-text);
}

.post-body h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  margin: 32px 0 12px;
  color: var(--color-text);
}

.post-body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: rgba(110, 175, 150, 0.4);
  text-underline-offset: 3px;
  transition: color var(--duration-fast) var(--ease-out),
              text-decoration-color var(--duration-fast) var(--ease-out);
}

.post-body a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: var(--color-accent-hover);
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-panel);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.post-body pre {
  background: var(--color-panel-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 24px;
}

.post-body pre code {
  background: none;
  padding: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
}

.post-body ul, .post-body ol {
  padding-left: 24px;
  margin-bottom: 24px;
}

.post-body li { margin-bottom: 8px; }

.post-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 20px;
  margin: 24px 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.post-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 40px 0;
}

/* Broken wiki-link */
.wiki-broken {
  color: var(--color-text-muted);
  text-decoration: line-through;
  cursor: not-allowed;
}

/* --- Back link --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  margin-top: 56px;
  padding: 8px 0;
  transition: color var(--duration-fast) var(--ease-out);
}

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

.back-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --- Footer --- */
footer {
  margin-top: auto;
  padding: 48px 0 32px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- Loading / skeleton --- */
.skeleton {
  background: linear-gradient(90deg, var(--color-panel) 25%, var(--color-panel-deep) 50%, var(--color-panel) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
  height: 18px;
  margin-bottom: 12px;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Focus visible global --- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* --- Mobile --- */
@media (max-width: 600px) {
  header { padding: 32px 0 24px; }

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

  .post-date { min-width: unset; }

  .post-title { font-size: 26px; }

  .post-body { font-size: var(--text-base); }
}