/* ==========================================================================
   Design Tokens
   ========================================================================== */
:root {
  /* Color Palette - Warm Journal Theme */
  --bg-primary: #fdfcfb;
  --bg-secondary: #f6f3eb;
  --text-primary: #1c1a17;
  --text-secondary: #5e5950;
  --accent: #bf4320; /* Rust / Terracotta */
  --accent-hover: #9e3215;
  --accent-light: rgba(191, 67, 32, 0.08);
  --border: #e2dcd0;
  --border-focus: #1c1a17;
  --shadow: rgba(28, 26, 23, 0.04);
  --success: #357a38;
  
  /* Typography */
  --font-serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  /* Spacing */
  --space-xxs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  
  /* Border Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #121210;
    --bg-secondary: #1a1a18;
    --text-primary: #e5e3dd;
    --text-secondary: #a3a097;
    --accent: #e05c38;
    --accent-hover: #f17857;
    --accent-light: rgba(224, 92, 56, 0.12);
    --border: #2c2a26;
    --border-focus: #e5e3dd;
    --shadow: rgba(0, 0, 0, 0.2);
    --success: #4caf50;
  }
}

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

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-serif);
  min-block-size: 100vh;
  min-block-size: 100dvb;
  display: flex;
  flex-direction: column;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px;
  z-index: 100;
  font-family: var(--font-mono);
}
.skip-link:focus {
  top: 0;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

/* Container */
.layout-container {
  max-inline-size: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
  padding-block: var(--space-xl);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-xxl);
}

/* ==========================================================================
   Header Style
   ========================================================================== */
.site-header {
  border-block-end: 1px solid var(--border);
  padding-block-end: var(--space-lg);
}

.header-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.site-branding {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxs);
}

.logo-link {
  text-decoration: none;
  color: var(--text-primary);
}

.logo-text {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: -0.05em;
  display: inline-block;
}

.system-status {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.status-indicator {
  inline-size: 8px;
  block-size: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: blink 2s infinite ease-in-out;
}

@keyframes blink {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

.site-navigation {
  font-family: var(--font-mono);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding-block: var(--space-xxs);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  inline-size: 100%;
  block-size: 1px;
  bottom: 0;
  left: 0;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease-out;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--text-primary);
  font-weight: 600;
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.main-content {
  flex: 1;
}

/* Homepage specific */
.homepage-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xxl);
}

@media (min-width: 850px) {
  .homepage-layout {
    grid-template-columns: 2.2fr 1fr;
    gap: var(--space-xxl);
  }
}

/* Hero Article */
.hero-article {
  max-inline-size: 680px;
}

.article-header {
  margin-block-end: var(--space-xl);
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-block-end: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  letter-spacing: 0.05em;
}

.meta-label {
  color: var(--accent);
  font-weight: 600;
}

.meta-separator {
  color: var(--border);
}

.article-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-block-end: var(--space-md);
}

.article-lead {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-block-end: var(--space-lg);
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-primary);
}

.article-body p {
  margin-block-end: var(--space-lg);
}

.article-body h2 {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 600;
  margin-block-start: var(--space-xl);
  margin-block-end: var(--space-md);
}

.article-body h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 600;
  margin-block-start: var(--space-lg);
  margin-block-end: var(--space-sm);
}

.article-body blockquote {
  border-inline-start: 3px solid var(--accent);
  padding-inline-start: var(--space-md);
  margin-inline: 0;
  margin-block: var(--space-lg);
  color: var(--text-secondary);
  font-style: italic;
}

.article-body ul, .article-body ol {
  margin-block-end: var(--space-lg);
  padding-inline-start: var(--space-xl);
}

.article-body li {
  margin-block-end: var(--space-xs);
}

.article-body a {
  color: var(--accent);
  text-decoration: none;
  border-block-end: 1px solid var(--border);
  transition: color 0.15s ease, border-color 0.15s ease;
}

.article-body a:hover {
  color: var(--accent-hover);
  border-block-end-color: var(--accent);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background-color: var(--bg-secondary);
  padding-inline: var(--space-xxs);
  padding-block: 1px;
  border-radius: var(--radius-sm);
}

.article-body table {
  inline-size: 100%;
  border-collapse: collapse;
  margin-block: var(--space-xl);
  font-size: 0.95rem;
}

.article-body th, .article-body td {
  border-block-end: 1px solid var(--border);
  padding-block: var(--space-sm);
  padding-inline: var(--space-md);
  text-align: left;
}

.article-body th {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
}

/* ==========================================================================
   Sidebar & Lists
   ========================================================================== */
.recent-logs {
  border-inline-start: 0px;
  padding-inline-start: 0px;
}

@media (min-width: 850px) {
  .recent-logs {
    border-inline-start: 1px solid var(--border);
    padding-inline-start: var(--space-xl);
  }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-block-end: 1px solid var(--border);
  padding-block-end: var(--space-sm);
  margin-block-end: var(--space-lg);
}

.section-title {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.section-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.logs-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.log-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  border-block-end: 1px solid var(--border);
  padding-block-end: var(--space-lg);
}

.log-item:last-child {
  border-block-end: none;
  padding-block-end: 0;
}

.log-item-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  gap: var(--space-xs);
}

.log-item-title {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
}

.log-item-title a {
  text-decoration: none;
  color: var(--text-primary);
  transition: color 0.15s ease;
}

.log-item-title a:hover {
  color: var(--accent);
}

.log-item-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  /* Truncate summary in list */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-log-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  align-self: flex-start;
  transition: color 0.15s ease;
}

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

/* Journal Detail View Specific */
.journal-article {
  max-inline-size: 720px;
  margin-inline: auto;
}

.article-footer {
  margin-block-start: var(--space-xxl);
  border-block-start: 1px solid var(--border);
  padding-block-start: var(--space-lg);
}

.back-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s ease;
}

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

/* Journal List View Specific */
.journal-list-layout {
  max-inline-size: 720px;
  margin-inline: auto;
}

.page-header {
  margin-block-end: var(--space-xxl);
  border-block-end: 1px solid var(--border);
  padding-block-end: var(--space-lg);
}

.page-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 2.25rem;
  line-height: 1.2;
  margin-block-end: var(--space-xs);
}

.page-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Contact Page Layout
   ========================================================================== */
.contact-layout {
  max-inline-size: 900px;
  margin-inline: auto;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-block-start: var(--space-xl);
}

@media (min-width: 768px) {
  .contact-container {
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-xxl);
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-info h2 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--text-primary);
}

.contact-info p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.system-specs {
  border: 1px solid var(--border);
  background-color: var(--bg-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.spec-row {
  display: flex;
  justify-content: space-between;
}

.spec-label {
  color: var(--text-secondary);
}

.spec-value {
  color: var(--text-primary);
  font-weight: 600;
}

.text-green {
  color: var(--success);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxs);
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  font-family: var(--font-serif);
  font-size: 1rem;
  padding: var(--space-sm);
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
  outline: none;
}

.submit-btn {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  background-color: var(--accent);
  color: #fff;
  border: none;
  padding-block: var(--space-sm);
  padding-inline: var(--space-lg);
  cursor: pointer;
  align-self: flex-start;
  transition: background-color 0.2s ease, transform 0.1s ease;
  border-radius: var(--radius-sm);
}

.submit-btn:hover {
  background-color: var(--accent-hover);
}

.submit-btn:active {
  transform: translateY(1px);
}

/* ==========================================================================
   Footer Style
   ========================================================================== */
.site-footer {
  border-block-start: 1px solid var(--border);
  padding-block-start: var(--space-lg);
  margin-block-start: var(--space-xxl);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-meta {
  display: flex;
  flex-flow: row wrap;
  gap: var(--space-xs);
}

.footer-separator {
  color: var(--border);
}

.system-metadata {
  display: flex;
  gap: var(--space-md);
}

.meta-item {
  background-color: var(--bg-secondary);
  padding-inline: var(--space-xs);
  padding-block: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}