:root {
  --bg-primary: #08090c;
  --bg-secondary: #10121a;
  --bg-tertiary: #161925;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent-green: #39ff14;
  --accent-green-hover: #2ee60f;
  --accent-green-glow: rgba(57, 255, 20, 0.35);
  --accent-red: #ef4444;
  --border-color: #1e293b;
  --font-sans: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", Consolas, monospace;
  
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--accent-green) var(--bg-secondary);
  scrollbar-width: thin;
}

body {
  background-color: var(--bg-primary);
  /* Subtle grid pattern + dark vignette */
  background-image: 
    radial-gradient(circle at center, transparent 30%, var(--bg-primary) 85%),
    linear-gradient(rgba(30, 41, 59, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 41, 59, 0.1) 1px, transparent 1px);
  background-size: 100% 100%, 24px 24px, 24px 24px;
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  padding: 0 16px;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--accent-green);
  color: var(--bg-primary);
  padding: 8px 16px;
  z-index: 100;
  font-family: var(--font-mono);
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  border: 1px solid var(--bg-primary);
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 0;
  outline: none;
}

/* Global focus styling */
*:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 4px;
}

/* Layout container - Moody Notebook */
.notebook-container {
  max-width: 820px;
  margin: 60px auto;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.7),
    0 0 30px rgba(57, 255, 20, 0.03);
  position: relative;
  /* Margins & spiral holes via CSS patterns */
  background-image: 
    radial-gradient(circle, var(--bg-primary) 6px, transparent 7px),
    linear-gradient(90deg, transparent 79px, rgba(239, 68, 68, 0.15) 79px, rgba(239, 68, 68, 0.15) 81px, transparent 81px);
  background-size: 100% 40px, 100% 100%;
  background-position: 28px 20px, 0 0;
  background-repeat: repeat-y, no-repeat;
  padding: 50px 50px 50px 105px;
  overflow: hidden;
}

/* Notebook Header / Terminal style top bar */
.notebook-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--border-color);
}

.terminal-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.terminal-prompt {
  color: var(--accent-green);
}

.terminal-prompt span {
  color: var(--text-primary);
}

.site-title-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.site-logo a {
  color: var(--text-primary);
  text-decoration: none;
  display: inline-block;
  transition: transform 0.2s ease;
}

.site-logo a:hover {
  color: var(--accent-green);
  text-shadow: 0 0 10px var(--accent-green-glow);
  transform: skewX(-5deg);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

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

/* Post list / Curated notes */
.notes-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.note-item {
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.note-item:hover {
  border-color: var(--accent-green);
  box-shadow: 0 5px 15px rgba(57, 255, 20, 0.05);
}

.note-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green-dim);
  margin-bottom: 8px;
}

.note-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.note-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.note-title a:hover {
  color: var(--accent-green);
}

.note-summary {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-green);
  text-decoration: none;
  font-weight: 700;
}

.read-more:hover {
  text-decoration: underline;
}

/* Post / Page Content Details */
.post-header {
  margin-bottom: 32px;
}

.post-title {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.featured-img-container {
  width: 100%;
  max-height: 350px;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-bottom: 32px;
  background-color: var(--bg-tertiary);
  position: relative;
}

.featured-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  /* Gritty horror movie filter */
  filter: grayscale(40%) contrast(120%) brightness(80%);
  transition: filter 0.3s ease;
}

.featured-img-container:hover img {
  filter: grayscale(0%) contrast(100%) brightness(90%);
}

.content-body {
  font-size: 1.05rem;
  color: #e2e8f0;
}

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

.content-body a {
  color: var(--accent-green);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

.content-body a:hover {
  color: var(--accent-green-hover);
}

.content-body code {
  font-family: var(--font-mono);
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid var(--border-color);
  color-scheme: dark;
}

.content-body pre {
  background: var(--bg-tertiary);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.content-body pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: 0.95em;
}

/* Notebook Footer */
.notebook-footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px dashed var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-prompt {
  color: var(--accent-green-dim);
}

/* Forms - Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 500px;
  margin-top: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-control {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  border-color: var(--accent-green);
  outline: none;
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  align-self: flex-start;
  background: var(--bg-tertiary);
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
  border-radius: 6px;
  padding: 10px 24px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-submit:hover {
  background: var(--accent-green);
  color: var(--bg-primary);
  box-shadow: 0 0 15px var(--accent-green-glow);
}

/* Home Welcome section */
.welcome-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.notebook-stamp {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-red);
  border: 1px solid rgba(239, 68, 68, 0.4);
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  display: inline-block;
  align-self: flex-start;
  letter-spacing: 1px;
  background: rgba(239, 68, 68, 0.05);
}

/* Legacy scrollbar rules */
@supports not (scrollbar-color: auto) {
  html::-webkit-scrollbar {
    width: 8px;
  }
  html::-webkit-scrollbar-track {
    background: var(--bg-secondary);
  }
  html::-webkit-scrollbar-thumb {
    background: var(--accent-green-dim);
    border-radius: 4px;
  }
  html::-webkit-scrollbar-thumb:hover {
    background: var(--accent-green);
  }
}

/* Responsive adjust */
@media (max-width: 768px) {
  .notebook-container {
    margin: 20px auto;
    padding: 30px 20px 30px 40px;
    background-image: 
      linear-gradient(90deg, transparent 29px, rgba(239, 68, 68, 0.15) 29px, rgba(239, 68, 68, 0.15) 31px, transparent 31px);
    background-size: 100% 100%;
    background-position: 0 0;
    background-repeat: no-repeat;
  }
  
  .notebook-container::before {
    display: none;
  }
  
  .terminal-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  
  .post-title {
    font-size: 1.8rem;
  }
  
  .nav-links {
    gap: 10px;
    font-size: 0.85rem;
  }
}