/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Inter:wght@300;400;500;600;700&family=Noto+Serif+SC:wght@300;400;600&display=swap');

:root {
  --bg: #090d13;
  --bg-soft: #121820;
  --bg-card: #161f2c;
  --bd: #212c3c;
  --bd-focus: #388bfd;
  --fg: #e6edf3;
  --fg-dim: #7d8c9e;
  --fg-dark: #485565;
  --accent: #f0a35e; /* PicZTream Orange */
  --accent-rgb: 240, 163, 94;
  --accent2: #58a6ff; /* Blue */
  --accent3: #56d364; /* Terminal Green */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: 'Fira Code', 'SF Mono', 'JetBrains Mono', monospace;
  --font-serif: 'Noto Serif SC', Georgia, serif;
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --glass-bg: rgba(18, 24, 32, 0.7);
  --glass-bd: rgba(33, 44, 60, 0.6);
}

[data-theme="light"] {
  --bg: #f5f6f8;
  --bg-soft: #ffffff;
  --bg-card: #f9fafb;
  --bd: #d0d7de;
  --bd-focus: #0969da;
  --fg: #1f2328;
  --fg-dim: #57606a;
  --fg-dark: #8c959f;
  --accent: #bc4c00; /* Dark Orange */
  --accent-rgb: 188, 76, 0;
  --accent2: #0969da; /* Blue */
  --accent3: #1a7f37; /* Green */
  --shadow: 0 8px 32px 0 rgba(140, 149, 159, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-bd: rgba(208, 215, 222, 0.6);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* Background grid animation */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(var(--bd) 1px, transparent 1px),
    linear-gradient(90deg, var(--bd) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.15;
  pointer-events: none;
  z-index: -1;
  transition: opacity 0.3s ease;
}

a {
  color: var(--accent2);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

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

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

/* Container */
.container {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Status Bar */
.status-bar {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-bd);
  font-family: var(--font-mono);
  font-size: 13px;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.status-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 40px;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-item {
  color: var(--fg-dim);
}

.status-item strong {
  color: var(--accent);
}

.dot-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--accent3);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent3);
  margin-right: 4px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(86, 211, 100, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(86, 211, 100, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(86, 211, 100, 0); }
}

.theme-toggle-btn {
  background: none;
  border: none;
  color: var(--fg-dim);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid transparent;
}

.theme-toggle-btn:hover {
  border-color: var(--bd);
  color: var(--fg);
  background: var(--bg-soft);
}

/* Main Site Header */
header.site-header {
  padding: 60px 0 40px;
}

.hero-block {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: start;
}

@media (max-width: 768px) {
  .hero-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.bio-text h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.bio-text h1 .cursor {
  display: inline-block;
  width: 10px;
  height: 1.1em;
  background-color: var(--accent);
  vertical-align: middle;
  margin-left: 4px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  from, to { background-color: transparent }
  50% { background-color: var(--accent) }
}

.bio-text p {
  color: var(--fg-dim);
  font-size: 16px;
  margin-bottom: 24px;
  max-width: 580px;
}

/* Neofetch Widget */
.neofetch-widget {
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  border-radius: 8px;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  box-shadow: var(--shadow);
  overflow-x: auto;
}

.neofetch-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--bd);
  padding-bottom: 8px;
}

.neofetch-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.neofetch-dot.red { background-color: #ff5f56; }
.neofetch-dot.yellow { background-color: #ffbd2e; }
.neofetch-dot.green { background-color: #27c93f; }

.neofetch-title {
  color: var(--fg-dim);
  margin-left: 6px;
  font-weight: 600;
}

.neofetch-content {
  display: flex;
  gap: 16px;
}

@media (max-width: 480px) {
  .neofetch-content {
    flex-direction: column;
    gap: 8px;
  }
}

.neofetch-ascii {
  color: var(--accent);
  white-space: pre;
  font-weight: bold;
}

.neofetch-info {
  display: flex;
  flex-direction: column;
}

.neofetch-info-row {
  margin-bottom: 4px;
  white-space: nowrap;
}

.neofetch-info-row span.label {
  color: var(--accent2);
}

/* Tabs Navigation */
.tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--bd);
  margin-bottom: 32px;
  gap: 8px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--fg-dim);
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease;
  font-weight: 500;
}

.tab-btn:hover {
  color: var(--fg);
}

.tab-btn.active {
  color: var(--accent);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
}

.tab-key-hint {
  font-size: 10px;
  color: var(--fg-dark);
  border: 1px solid var(--bd);
  border-radius: 3px;
  padding: 0px 4px;
  margin-left: 6px;
  vertical-align: middle;
}

/* Tab Content */
.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Projects Tab */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.project-card {
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.6);
}

[data-theme="light"] .project-card:hover {
  box-shadow: 0 12px 40px 0 rgba(140, 149, 159, 0.25);
}

.project-badge-featured {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(240, 163, 94, 0.15);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(240, 163, 94, 0.3);
}

.project-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.project-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--fg);
}

.project-lang-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg);
  border: 1px solid var(--bd);
  color: var(--fg-dim);
}

.project-desc {
  color: var(--fg-dim);
  font-size: 15px;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-terminal-block {
  background: var(--bg);
  border: 1px solid var(--bd);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  margin-bottom: 20px;
  position: relative;
}

.project-terminal-block::before {
  content: 'INSTALL';
  position: absolute;
  top: -8px;
  left: 12px;
  font-size: 9px;
  background: var(--bg-soft);
  padding: 0 6px;
  color: var(--fg-dark);
  letter-spacing: 0.1em;
}

.project-terminal-block pre {
  margin: 0;
  overflow-x: auto;
}

.project-terminal-block .prompt {
  color: var(--accent);
  user-select: none;
}

.project-terminal-block .comment {
  color: var(--fg-dark);
}

.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 14px;
}

.project-stats {
  display: flex;
  gap: 16px;
  color: var(--fg-dim);
}

.project-stat-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.project-links {
  display: flex;
  gap: 16px;
}

.project-link {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Search Bar */
.search-container {
  margin-bottom: 24px;
  position: relative;
}

.search-input {
  width: 100%;
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15);
}

.search-key-hint {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dark);
  border: 1px solid var(--bd);
  border-radius: 4px;
  padding: 2px 6px;
  background: var(--bg);
  pointer-events: none;
}

/* Post/Poetry Lists */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.post-item {
  display: flex;
  flex-direction: column;
  padding: 16px;
  border-radius: 8px;
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  transition: border-color 0.2s ease, transform 0.1s ease;
}

.post-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.post-meta {
  display: flex;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-dim);
  margin-bottom: 6px;
  align-items: center;
}

.post-date {
  color: var(--fg-dark);
}

.post-tag {
  color: var(--accent2);
}

.post-title-link {
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
}

.post-title-link:hover {
  color: var(--accent);
  text-decoration: none;
}

.post-summary {
  font-size: 14.5px;
  color: var(--fg-dim);
  margin-top: 6px;
}

/* Poetry adjustments */
.poetry-item {
  border-left: 3px solid var(--accent);
}

.poetry-title-link {
  font-family: var(--font-serif);
  font-weight: 500;
}

/* Post View Page (for post.html) */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  margin-bottom: 32px;
}

article.post-content {
  margin-bottom: 60px;
}

.post-header-area {
  margin-bottom: 32px;
  border-bottom: 1px solid var(--bd);
  padding-bottom: 24px;
}

.post-header-area h1 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.poetry-style-header h1 {
  font-family: var(--font-serif);
  text-align: center;
  margin-bottom: 16px;
}

.poetry-style-header .post-meta {
  justify-content: center;
}

/* Markdown Rendering Custom Styles */
.markdown-body {
  font-size: 16px;
  line-height: 1.75;
  color: var(--fg);
}

.markdown-body.poetry-body {
  font-family: var(--font-serif);
  font-size: 18px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  letter-spacing: 0.05em;
}

.markdown-body.poetry-body p {
  margin-bottom: 28px;
  white-space: pre-wrap;
}

.markdown-body p, 
.markdown-body ul, 
.markdown-body ol, 
.markdown-body blockquote, 
.markdown-body table, 
.markdown-body pre {
  margin-bottom: 20px;
}

.markdown-body h2 {
  font-size: 22px;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--bd);
  padding-bottom: 8px;
}

.markdown-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 12px;
}

.markdown-body blockquote {
  padding: 12px 20px;
  border-left: 4px solid var(--accent);
  background: var(--bg-soft);
  color: var(--fg-dim);
  border-radius: 0 8px 8px 0;
}

.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  padding: 2px 6px;
  border-radius: 4px;
}

.markdown-body pre {
  background: var(--bg-soft);
  border: 1px solid var(--bd);
  padding: 18px;
  border-radius: 8px;
  overflow-x: auto;
}

.markdown-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13.5px;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
}

.markdown-body th, 
.markdown-body td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--bd);
  text-align: left;
}

.markdown-body th {
  color: var(--fg-dim);
  font-weight: 600;
}



/* Footer */
footer.site-footer {
  margin-top: auto;
  padding: 40px 0;
  border-top: 1px solid var(--bd);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--fg-dim);
  text-align: center;
}

footer.site-footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

/* Custom Floating Help Banner */
.keyboard-helper {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  border-radius: 8px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-family: var(--font-mono);
  font-size: 12px;
  z-index: 90;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  max-width: 260px;
}

.keyboard-helper.hidden {
  opacity: 0;
  transform: translateY(12px);
}

.keyboard-helper-title {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.keyboard-helper-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 4px;
  color: var(--fg-dim);
}

.keyboard-helper-key {
  color: var(--fg);
  border: 1px solid var(--bd);
  border-radius: 3px;
  padding: 0 4px;
  background: var(--bg);
}