/* Clean Terminal/Hacker Style */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --terminal-green: #00ff41;
  --terminal-green-dim: #00cc33;
  --terminal-bg: #0a0a0a;
  --terminal-container: #111111;
  --terminal-border: #1a1a1a;
  --text-primary: #00ff41;
  --text-secondary: #00cc33;
  --text-muted: #666666;
}

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

body {
  background: var(--terminal-bg);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Menlo', 'Monaco', monospace;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  line-height: 1.6;
  font-size: 14px;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 700px;
  margin: 60px auto;
  padding: 60px 40px;
  background: var(--terminal-container);
  border: 1px solid var(--terminal-border);
  border-radius: 0;
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  margin-bottom: 40px;
  text-align: center;
}

.header h1 {
  font-size: 1.8em;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0;
  letter-spacing: 0.5px;
}

/* Navigation */
nav {
  margin-bottom: 50px;
  padding: 0;
  text-align: center;
}

nav a {
  color: var(--text-primary);
  text-decoration: none;
  margin: 0 20px;
  font-size: 0.9em;
  font-weight: 500;
  transition: color 0.2s ease;
}

nav a:hover {
  color: var(--text-secondary);
}

/* Typography */
h1, h2, h3 {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  font-family: 'JetBrains Mono', monospace;
}

h1 {
  font-size: 1.8em;
}

h2 {
  font-size: 1.4em;
  margin-top: 0;
  margin-bottom: 30px;
  color: var(--text-primary);
  text-align: center;
  padding-bottom: 0;
  border-bottom: none;
}

h3 {
  font-size: 1.2em;
  margin-top: 24px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 16px;
  line-height: 1.7;
  color: var(--text-primary);
}

/* Links */
a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--text-secondary);
  border-bottom-color: var(--text-secondary);
}

/* Course List */
.course-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.course-list li {
  padding: 12px 0;
  text-align: center;
  border-bottom: 1px solid var(--terminal-border);
  transition: all 0.2s ease;
}

.course-list li:last-child {
  border-bottom: none;
}

.course-list li:hover {
  padding-left: 10px;
}

.course-list a {
  font-size: 1em;
  color: var(--text-primary);
  display: block;
}

.course-list a:hover {
  color: var(--text-secondary);
  border-bottom: none;
}

/* ASCII Art styling */
.ascii-art {
  font-family: 'JetBrains Mono', monospace;
  white-space: pre;
  color: var(--text-primary);
  line-height: 1.2;
  font-size: 0.75em;
  margin: 20px 0;
  overflow-x: auto;
}

/* Matrix rain ASCII animation */
.ascii-rain {
  font-family: 'JetBrains Mono', monospace;
  white-space: pre;
  color: var(--terminal-green-dim);
  line-height: 1.1;
  font-size: 1em;
  margin: 0;
  padding: 16px;
  background: transparent;
  border: none;
  height: 100vh;
  overflow: hidden;
  letter-spacing: 0.6px;
  width: 100%;
  text-align: center;
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

.ascii-banner {
  font-family: 'JetBrains Mono', monospace;
  white-space: pre;
  color: var(--text-primary);
  line-height: 1.2;
  font-size: 0.65em;
  margin: 0 0 20px 0;
  text-align: center;
  overflow-x: auto;
  letter-spacing: 0;
}

.ascii-separator {
  font-family: 'JetBrains Mono', monospace;
  white-space: pre;
  color: var(--text-secondary);
  font-size: 0.7em;
  margin: 20px 0;
  text-align: center;
  opacity: 0.6;
  overflow-x: auto;
}

.ascii-box {
  font-family: 'JetBrains Mono', monospace;
  white-space: pre;
  color: var(--text-primary);
  font-size: 0.85em;
  margin: 20px 0;
  padding: 12px;
  background: rgba(0, 255, 65, 0.02);
  border: 1px solid var(--terminal-border);
  overflow-x: auto;
  line-height: 1.4;
}

/* Horizontal rules */
hr {
  border: none;
  border-top: 1px solid var(--terminal-border);
  margin: 32px 0;
}

/* Code */
code {
  background: rgba(0, 255, 65, 0.1);
  padding: 2px 6px;
  border-radius: 2px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
  color: var(--text-primary);
  border: 1px solid rgba(0, 255, 65, 0.2);
}

/* Footer */
footer {
  text-align: center;
  padding: 40px 0;
  margin-top: 60px;
  color: var(--text-muted);
  font-size: 0.85em;
}

footer small {
  color: var(--text-muted);
}

/* Bootstrap navbar override - hide it, we use our own nav */
.navbar {
  display: none;
}

/* Text container for about page */
.textcontainer {
  width: 100%;
  max-width: 900px;
  margin: 60px auto;
  padding: 40px;
  background: var(--terminal-container);
  border: 1px solid var(--terminal-border);
  color: var(--text-primary);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
  position: relative;
  z-index: 1;
  overflow-x: hidden;
}

.textcontainer .header {
  margin-bottom: 20px;
}

.textcontainer h1,
.textcontainer h2,
.textcontainer h3,
.textcontainer h4 {
  color: var(--text-primary);
  border-bottom: 1px solid var(--terminal-border);
  padding-bottom: 8px;
  margin-top: 32px;
  margin-bottom: 20px;
}

.textcontainer h1:first-child {
  margin-top: 0;
}

.textcontainer p {
  color: var(--text-primary);
  line-height: 1.7;
}

.textcontainer table.table {
  --bs-table-color: #ffffff;
  --bs-table-striped-color: #ffffff;
  color: #ffffff;
}

.textcontainer table.table > :not(caption) > * > * {
  color: #ffffff;
}

.textcontainer nav {
  margin: 20px 0;
  padding: 16px 0;
  border-top: 1px solid var(--terminal-border);
  border-bottom: 1px solid var(--terminal-border);
  text-align: center;
}

.center-row {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  margin: 24px 0;
  padding: 20px;
  background: rgba(0, 255, 65, 0.02);
  border: 1px solid var(--terminal-border);
}

.center-row img {
  max-width: 300px;
  border: 1px solid var(--terminal-border);
  flex-shrink: 0;
}

.center-row--stack {
  flex-direction: column;
  align-items: stretch;
}

.center-row--stack img {
  max-width: none;
  width: 100%;
}

#aboutme {
  flex: 1;
  line-height: 1.7;
}

.margin {
  margin: 16px 0;
}

/* Documentation pre blocks: flow as one block of text, no tabbed/indented lines */
.textcontainer pre.margin {
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
  max-width: 100%;
  min-width: 0;
  overflow-x: hidden;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--terminal-border);
  display: block;
  margin: 20px 0;
}

/* Videos */
video {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--terminal-border);
  margin: 20px 0;
  display: block;
}

/* Placeholder images */
.placeholder-img {
  max-height: 200px;
  object-fit: cover;
  border: 1px solid var(--terminal-border);
}

/* Responsive design */
@media (max-width: 768px) {
  .container,
  .textcontainer {
    margin: 20px;
    padding: 24px;
  }
  
  .course-list {
    grid-template-columns: 1fr;
  }
  
  .center-row {
    flex-direction: column;
  }
  
  .center-row img {
    max-width: 100%;
  }
  
  h1 {
    font-size: 1.5em;
  }
  
  h2 {
    font-size: 1.3em;
  }
  
  h3 {
    font-size: 1.1em;
  }
  
  nav a {
    display: block;
    margin-bottom: 8px;
    margin-right: 0;
  }
  
  nav a {
    display: inline-block;
    margin: 0 10px;
  }
}

@media (max-width: 576px) {
  .placeholder-img {
    max-height: 150px;
  }
  
  body {
    font-size: 13px;
  }
}

/* Remove hero section styles */
.hero-section {
  display: none;
}

/* Expandable box (details/summary) */
.expandable-box {
  margin: 24px 0;
  border: 1px solid var(--terminal-border);
  background: rgba(0, 255, 65, 0.02);
}

.expandable-box__header {
  padding: 16px 20px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  font-size: 1.1em;
  transition: background 0.2s ease;
}

.expandable-box__header::-webkit-details-marker {
  display: none;
}

.expandable-box__header::before {
  content: '▶ ';
  display: inline-block;
  margin-right: 8px;
  transition: transform 0.2s ease;
}

.expandable-box[open] .expandable-box__header::before {
  transform: rotate(90deg);
}

.expandable-box__header:hover {
  background: rgba(0, 255, 65, 0.05);
}

.expandable-box__content {
  padding: 0 20px 20px 20px;
  border-top: 1px solid var(--terminal-border);
}