/* PNHT Custom Stylesheet - Lab & Journal Theme */

:root {
  --bg-color: #080b11;
  --bg-card: #0e131f;
  --bg-hud: #04060a;
  --bg-input: #0b0e16;
  
  --border-color: #1a2333;
  --border-focus: #00d2ff;
  
  --text-primary: #a9b7c6;
  --text-muted: #6272a4;
  --text-bright: #ffffff;
  
  --accent-cyan: #00d2ff;
  --accent-green: #50fa7b;
  --accent-amber: #ffb86c;
  
  --font-sans: "Arial Narrow", "Avenir Next Condensed", "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Courier New", Courier, monospace;
}

/* Base resets */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.625;
  background-image: 
    radial-gradient(rgba(0, 210, 255, 0.03) 1px, transparent 0),
    linear-gradient(to bottom, rgba(8, 11, 17, 0.8), var(--bg-color));
  background-size: 24px 24px, 100% 100%;
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-bright);
  font-weight: 600;
  line-height: 1.3;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}
a:hover {
  color: var(--text-bright);
  text-shadow: 0 0 8px rgba(0, 210, 255, 0.4);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Diagnostics HUD Bar */
.hud-top-bar {
  background-color: var(--bg-hud);
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 0;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.hud-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.hud-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.status-indicator.online {
  background-color: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
}

/* Header */
.site-header {
  background-color: rgba(8, 11, 17, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1.25rem 0;
}
.header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-logo {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
}
.site-logo .bracket {
  color: var(--accent-cyan);
}
.site-logo .logo-sub {
  color: var(--accent-amber);
  font-size: 0.8rem;
  margin-left: 0.2rem;
  font-weight: 500;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: 0.25rem 0;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-cyan);
  transition: width 0.2s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link.active {
  color: var(--accent-cyan);
}

/* Main Content Wrapper */
.site-main {
  flex-grow: 1;
  padding: 3rem 0;
}

/* Homepage specific styles */
.terminal-container {
  background-color: var(--bg-hud);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  margin-bottom: 3.5rem;
}
.terminal-header {
  background-color: rgba(26, 35, 51, 0.3);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red { background-color: #ff5555; }
.terminal-dot.yellow { background-color: #ffb86c; }
.terminal-dot.green { background-color: #50fa7b; }
.terminal-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 1rem;
}
.terminal-body {
  padding: 2rem;
}
.terminal-body h1 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
  color: var(--text-bright);
}
.terminal-body h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-amber);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
.terminal-body p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  color: var(--text-primary);
}
.terminal-body hr {
  border: none;
  border-top: 1px dashed var(--border-color);
  margin: 2rem 0;
}

.recent-posts-section {
  margin-top: 2rem;
}
.section-header-block {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.section-title {
  font-size: 1.1rem;
  color: var(--accent-cyan);
  white-space: nowrap;
}
.line-divider {
  height: 1px;
  background-color: var(--border-color);
  flex-grow: 1;
}
.mono-badge {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

/* Card layout */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.post-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.post-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 20px rgba(0, 210, 255, 0.1);
}
.card-inner {
  padding: 1.5rem;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  gap: 0.5rem;
}
.card-sep {
  color: var(--border-color);
}
.card-category {
  color: var(--accent-amber);
}
.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.card-title a {
  color: var(--text-bright);
}
.card-title a:hover {
  color: var(--accent-cyan);
}
.card-summary {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.5;
}
.card-footer {
  margin-top: auto;
}
.read-more-link {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-weight: 500;
}
.read-more-link .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}
.read-more-link:hover .arrow {
  transform: translateX(4px);
}

/* Journal List Stack */
.posts-list-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.list-post-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: center;
  gap: 1.5rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.list-post-item:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 12px rgba(0, 210, 255, 0.05);
}
.post-item-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.post-item-main {
  display: flex;
  flex-direction: column;
}
.post-item-category {
  font-size: 0.75rem;
  color: var(--accent-amber);
  display: block;
  margin-bottom: 0.25rem;
}
.post-item-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}
.post-item-title a {
  color: var(--text-bright);
}
.post-item-title a:hover {
  color: var(--accent-cyan);
}
.post-item-desc {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.5;
}
.btn-read {
  background-color: rgba(26, 35, 51, 0.3);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.8rem;
  font-size: 0.75rem;
  border-radius: 4px;
  color: var(--text-primary);
  white-space: nowrap;
}
.list-post-item:hover .btn-read {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Single Pages & Markdown layout styling */
.single-page, .journal-post-page {
  max-width: 800px;
  margin: 0 auto;
}
.page-header, .post-header {
  margin-bottom: 2.5rem;
}
.page-title {
  font-size: 2.5rem;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}
.page-subtitle, .post-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}
.post-meta-top {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}
.post-meta-top .label {
  color: var(--accent-cyan);
  margin-right: 0.25rem;
}
.header-border, .post-footer-border {
  height: 1px;
  background: linear-gradient(to right, var(--border-color), transparent);
  margin-top: 1.5rem;
}
.post-content h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  color: var(--text-bright);
}
.post-content h3 {
  font-size: 1.25rem;
  margin: 2rem 0 1rem;
  color: var(--text-bright);
}
.post-content p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  color: var(--text-primary);
}
.post-content ul, .post-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}
.post-content li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}
.post-content blockquote {
  border-left: 3px solid var(--accent-cyan);
  background-color: var(--bg-card);
  padding: 1.25rem 1.75rem;
  margin: 2.25rem 0;
  border-radius: 0 6px 6px 0;
}
.post-content blockquote p {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
  color: var(--text-bright);
  font-style: italic;
}
.post-content blockquote p:last-child {
  margin-bottom: 0;
}
.post-content blockquote img {
  vertical-align: middle;
  margin-left: 0.25rem;
}
.post-content img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin: 2.5rem auto;
  display: block;
}

/* Page header blocks */
.page-header-block {
  margin-bottom: 2.5rem;
}
.meta-section-header {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.meta-section-header .badge {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--accent-amber);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.page-intro {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-top: 1rem;
}
.list-divider {
  height: 1px;
  background-color: var(--border-color);
  margin-bottom: 2.5rem;
}

/* Code & Pre styling */
pre {
  background-color: var(--bg-hud) !important;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}
code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-cyan);
  background-color: rgba(26, 35, 51, 0.4);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
}
pre code {
  color: var(--text-primary);
  background-color: transparent;
  padding: 0;
  border-radius: 0;
}

/* Form Styles */
.contact-form {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2.5rem;
  margin: 2.5rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}
.form-group {
  margin-bottom: 1.5rem;
}
.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input, 
.form-group select, 
.form-group textarea {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(0, 210, 255, 0.25);
}
.form-group select option {
  background-color: var(--bg-card);
}
.form-actions {
  text-align: right;
}
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 500;
  padding: 0.85rem 1.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  border: none;
  font-size: 0.9rem;
}
.btn-primary {
  background-color: var(--accent-cyan);
  color: var(--bg-hud);
}
.btn-primary:hover {
  background-color: var(--text-bright);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.4);
}

/* Post navigation and buttons */
.post-navigation {
  margin-top: 2.5rem;
}
.btn-back {
  display: inline-block;
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 0.85rem;
  background-color: var(--bg-card);
}
.btn-back:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Footer styling */
.site-footer {
  background-color: var(--bg-hud);
  border-top: 1px solid var(--border-color);
  padding: 3.5rem 0 1.5rem;
  margin-top: auto;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}
.footer-desc {
  color: var(--text-muted);
  margin-top: 1rem;
  max-width: 450px;
}
.specs-title {
  font-size: 0.8rem;
  color: var(--accent-amber);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}
.specs-list {
  list-style: none;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.specs-list li {
  margin-bottom: 0.4rem;
}
.footer-bottom {
  border-top: 1px solid rgba(26, 35, 51, 0.4);
  padding-top: 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.footer-bottom-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }
  
  .header-flex {
    flex-direction: column;
    gap: 1.25rem;
    text-align: center;
  }
  
  .nav-links {
    gap: 1.25rem;
  }
  
  .list-post-item {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .post-item-action {
    text-align: left;
    margin-top: 0.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom-flex {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .terminal-body {
    padding: 1.25rem;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
}