/* ============================================
   Eli Overbey — Site Styles
   Clean, minimal design with light/dark mode
   ============================================ */

/* --- Local Fonts --- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/assets/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* --- CSS Custom Properties (Light Mode) --- */
:root {
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-border: #e2e8f0;
  --color-code-bg: #f1f5f9;
  --color-nav-bg: #ffffff;
  --color-card-bg: #ffffff;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --max-width: 680px;
  --nav-height: 64px;
  --transition: 0.2s ease;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --color-bg: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-text: #e2e8f0;
  --color-text-secondary: #94a3b8;
  --color-accent: #60a5fa;
  --color-accent-hover: #93bbfd;
  --color-border: #334155;
  --color-code-bg: #1e293b;
  --color-nav-bg: #0f172a;
  --color-card-bg: #1e293b;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  transition: background-color var(--transition), color var(--transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  color: var(--color-accent-hover);
}

img {
  max-width: 100%;
  height: auto;
}

/* --- Layout --- */
.site-wrapper {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Navigation --- */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.nav-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  text-decoration: none;
}

.nav-name:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
}

/* --- Hero Section --- */
.hero {
  padding: 2.5rem 0 1.5rem;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.hero .tagline {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 560px;
}

/* --- Content Sections --- */
.content-section {
  padding: 2rem 0;
}

.content-section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

/* --- Post List (Writing Page & Homepage) --- */
.post-list {
  list-style: none;
}

.post-list-year {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.post-list-year:first-child {
  margin-top: 0;
}

.post-list-item {
  padding: 0.5rem 0;
}

.post-list-item a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 1.05rem;
  line-height: 1.5;
  transition: color var(--transition);
}

.post-list-item a:hover {
  color: var(--color-accent);
}

.post-list-date {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

/* --- Recent Posts (Homepage) --- */
.recent-posts {
  padding: 0.5rem 0 3rem;
}

.recent-posts h2 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.view-all {
  display: inline-block;
  margin-top: 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}

/* --- Article / Post Content --- */
.post-header {
  padding: 3rem 0 1.5rem;
}

.post-header h1 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.post-meta {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.post-content {
  padding-bottom: 3rem;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.post-content h2 { font-size: 1.5rem; }
.post-content h3 { font-size: 1.25rem; }
.post-content h4 { font-size: 1.1rem; }

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content ul,
.post-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.post-content li {
  margin-bottom: 0.35rem;
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-code-bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.post-content pre {
  background: var(--color-code-bg);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-border);
}

.post-content pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.6;
}

.post-content img {
  border-radius: 8px;
  margin: 1.5rem 0;
}

.post-content figure {
  margin: 1.5rem 0;
}

.post-content figcaption {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 0.5rem;
}

.post-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.post-content th,
.post-content td {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  text-align: left;
  font-size: 0.9rem;
}

.post-content th {
  background: var(--color-bg-secondary);
  font-weight: 600;
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* --- Post Footer / Author --- */
.post-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  margin-top: 1rem;
}

.author-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.author-info p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0;
}

/* --- Share Links --- */
.share-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.share-links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

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

/* --- Contact Page --- */
.contact-intro {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 500px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  align-self: flex-start;
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}

.form-status {
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.form-success {
  color: #16a34a;
}

[data-theme="dark"] .form-success {
  color: #4ade80;
}

.form-error {
  color: #dc2626;
}

[data-theme="dark"] .form-error {
  color: #f87171;
}

.social-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.social-links a {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

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

/* --- Page Content (About, etc.) --- */
.page-content {
  padding: 2rem 0 3rem;
}

.page-content h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.page-content p {
  margin-bottom: 1.25rem;
  line-height: 1.75;
}

.page-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --- Footer --- */
.site-footer {
  margin-top: auto;
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

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

.theme-toggle {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition);
}

.theme-toggle:hover {
  color: var(--color-accent);
}

/* --- Back Link (Posts) --- */
.back-link {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  padding-top: 0.5rem;
}

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

/* --- Responsive --- */
@media (max-width: 640px) {
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .post-header h1 {
    font-size: 1.6rem;
  }

  .post-list-item a {
    flex-direction: column;
    gap: 0.15rem;
  }

  .post-list-date {
    font-size: 0.8rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .author-section {
    flex-direction: column;
    text-align: center;
  }
}