/* ============================================================
   TechGuru Theme — Dark Cyber Overhaul
   Layered on top of main.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ── CSS Variables ── */
:root {
  --bg-primary:    #080c18;
  --bg-secondary:  #0d1117;
  --bg-tertiary:   #111827;
  --bg-card:       rgba(255, 255, 255, 0.03);
  --accent-cyan:   #00d4ff;
  --accent-violet: #7c3aed;
  --accent-green:  #10b981;
  --accent-pink:   #f472b6;
  --text-primary:  #e2e8f0;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;
  --border-dim:    rgba(0, 212, 255, 0.12);
  --border-glow:   rgba(0, 212, 255, 0.4);
  --glow-cyan:     0 0 20px rgba(0, 212, 255, 0.35), 0 0 60px rgba(0, 212, 255, 0.1);
  --glow-violet:   0 0 20px rgba(124, 58, 237, 0.4), 0 0 60px rgba(124, 58, 237, 0.1);
  --gradient-main: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --gradient-card: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(124,58,237,0.08));
  --font-body:     'Space Grotesk', 'Lato', sans-serif;
  --font-mono:     'JetBrains Mono', 'Source Code Pro', monospace;
}

/* ── Base Reset Override ── */
body {
  background-color: var(--bg-primary) !important;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  color: var(--text-secondary);
  font-family: var(--font-body);
}

body, input, select, textarea {
  color: var(--text-secondary);
  font-family: var(--font-body);
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-family: var(--font-body);
}

h1, h2, h3 { letter-spacing: -0.02em; }

strong, b { color: var(--text-primary); }

p { color: var(--text-secondary); }

a {
  color: var(--accent-cyan);
  border-bottom-color: rgba(0, 212, 255, 0.2);
  transition: color 0.2s, text-shadow 0.2s, border-color 0.2s;
}
a:hover {
  color: #fff !important;
  text-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
  border-bottom-color: transparent;
}

code {
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

pre {
  background: #0d1117;
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 1.5em;
  font-family: var(--font-mono);
}

pre code {
  background: transparent;
  border: none;
  color: #7ee787;
}

/* ── Particles Canvas ── */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ── Sidebar (#header) ── */
#header {
  background: var(--bg-secondary) !important;
  border-left: 1px solid var(--border-dim);
  box-shadow: -4px 0 40px rgba(0, 0, 0, 0.6);
  color: var(--text-primary);
  z-index: 100;
  transition: transform 0.35s ease;
}

#header::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--gradient-main);
}

#header h1, #header h2, #header h3,
#header h4, #header h5, #header h6 {
  color: var(--text-primary);
}

#header h1 a, #header h2 a {
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: 0.02em;
}

/* Status dot next to name */
.status-online {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  margin-right: 6px;
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent-green); }
  50%       { opacity: 0.6; box-shadow: 0 0 16px var(--accent-green); }
}

#header > header {
  padding: 1.4em 1.5em;
}

#header > header p {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72em;
  font-style: normal;
  letter-spacing: 0.04em;
  line-height: 1.8;
  margin-top: 0.75em;
}

/* Avatar — neon ring */
#header .image.avatar {
  border: 2px solid var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  transition: box-shadow 0.4s;
}

#header .image.avatar:hover {
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.6), 0 0 80px rgba(0, 212, 255, 0.2);
}

/* Role badge */
.role-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 4px;
  padding: 3px 10px;
  margin-top: 0.5em;
}

/* ── Navigation ── */
#header > nav ul li {
  border-top: 1px solid rgba(255, 255, 255, 0.05) !important;
}

#header > nav ul li a {
  font-family: var(--font-mono);
  font-size: 0.8em;
  letter-spacing: 0.04em;
  color: var(--text-muted) !important;
  text-align: left;
  padding: 0.65em 1.5em;
  display: block;
  transition: color 0.2s, background 0.2s, padding-left 0.2s;
  background: transparent !important;
  position: relative;
}

#header > nav ul li a::before {
  content: '❯ ';
  color: var(--accent-violet);
  opacity: 0.5;
  transition: opacity 0.2s, color 0.2s;
}

#header > nav ul li a:hover {
  color: var(--text-primary) !important;
  background: rgba(0, 212, 255, 0.05) !important;
  padding-left: 1.9em;
}

#header > nav ul li a:hover::before {
  color: var(--accent-cyan);
  opacity: 1;
}

#header > nav ul li a.active {
  color: var(--accent-cyan) !important;
  background: rgba(0, 212, 255, 0.07) !important;
  border-right: 2px solid var(--accent-cyan);
}

#header > nav ul li a.active::before {
  color: var(--accent-cyan);
  opacity: 1;
}

/* Social icons in sidebar footer */
#header > footer {
  padding: 1em 1.5em;
  border-top: 1px solid rgba(255,255,255,0.05);
}

#header > footer .icons li a {
  color: var(--text-muted) !important;
  font-size: 1.1em;
  transition: color 0.2s, text-shadow 0.2s;
}

#header > footer .icons li a:hover {
  color: var(--accent-cyan) !important;
  text-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
}

/* ── Wrapper / Main Content ── */
#wrapper {
  background: var(--bg-primary) !important;
  position: relative;
  z-index: 1;
  transition: padding-right 0.35s ease;
}

#main > section {
  border-top: 1px solid rgba(0, 212, 255, 0.07) !important;
}

#main > section > .container {
  padding: 4em 0 3em 0;
}

/* First section — no banner above it, so tighten top slightly */
#main > section:first-child > .container {
  padding-top: 5em;
}

/* ── Section #one — About ── */
#one .container header.major h2 {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 3em;
  font-weight: 700;
  letter-spacing: -0.03em;
}

#one .container header.major p {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 1em;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  -webkit-text-fill-color: var(--text-muted);
}

/* Terminal-style intro box */
.terminal-box {
  background: rgba(13, 17, 23, 0.8);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1.5em;
}

.terminal-bar {
  background: rgba(255,255,255,0.05);
  border-bottom: 1px solid var(--border-dim);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.terminal-dot.red    { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green  { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.72em;
  color: var(--text-muted);
  margin-left: 8px;
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: 1.5em 2em;
  font-family: var(--font-mono);
  font-size: 0.85em;
  line-height: 1.9;
  color: var(--text-secondary);
}

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

.terminal-body .cmd {
  color: var(--accent-cyan);
}

.terminal-body .output {
  color: var(--text-secondary);
  display: block;
  padding-left: 1em;
  margin-bottom: 0.5em;
}

/* ── Section #two — Skills ── */
#two h3 {
  color: var(--text-primary);
  font-size: 1.5em;
  letter-spacing: -0.02em;
  margin-bottom: 0.3em;
}

#two h3::before {
  content: '// ';
  color: var(--accent-violet);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

#two > .container > p {
  color: var(--text-muted);
  font-size: 0.9em;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  margin-bottom: 2em;
}

ul.feature-icons li {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.82em;
  letter-spacing: 0.02em;
  padding: 0.5em 0 0.5em 3.75em;
  margin-bottom: 1.2em;
  transition: color 0.2s;
}

ul.feature-icons li:hover {
  color: var(--text-primary);
}

ul.feature-icons li::before {
  background: var(--gradient-main) !important;
  box-shadow: var(--glow-cyan);
  border-radius: 8px !important;
  font-size: 0.85em !important;
  height: 2.4em !important;
  width: 2.4em !important;
  line-height: 2.4em !important;
}

/* ── Section #three — Articles ── */
#three h3 {
  color: var(--text-primary);
  font-size: 1.5em;
  letter-spacing: -0.02em;
  margin-bottom: 0.3em;
}

#three h3::before {
  content: '// ';
  color: var(--accent-violet);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

#three > .container > p {
  color: var(--text-muted);
  font-size: 0.9em;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  margin-bottom: 2em;
}

/* Article cards — compact tech list */
.features {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.features article {
  background: transparent !important;
  border: none !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
  border-top: none !important;
  border-radius: 0 !important;
  padding: 1em 0.5em 1em 1.2em !important;
  margin-bottom: 0 !important;
  width: 100% !important;
  float: none !important;
  position: relative;
  overflow: hidden;
  backdrop-filter: none;
  transition: background 0.15s ease, padding-left 0.2s ease;
}

.features article::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 2px;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity 0.2s;
}

.features article:hover {
  transform: none;
  box-shadow: none !important;
  background: rgba(0, 212, 255, 0.025) !important;
  border-color: rgba(255, 255, 255, 0.05) !important;
  padding-left: 1.7em !important;
}

.features article:hover::before {
  opacity: 1;
}

.features article:nth-child(odd) {
  border-right: 1px solid rgba(255, 255, 255, 0.05) !important;
}

.features article .inner h4 {
  color: var(--text-primary);
  font-size: 0.9em;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.2em;
}

.features article .inner h4::after {
  content: ' ↗';
  font-size: 0.75em;
  color: var(--accent-cyan);
  opacity: 0;
  transition: opacity 0.2s;
}

.features article:hover .inner h4::after {
  opacity: 1;
}

.features article .inner p {
  display: none;
}

.features article a {
  border-bottom: none !important;
  display: block;
}

/* Article tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 0.5em;
}

.article-tag {
  font-family: var(--font-mono);
  font-size: 0.6em;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid;
}

.article-tag.cyan   { color: var(--accent-cyan);   border-color: rgba(0, 212, 255, 0.3);   background: rgba(0, 212, 255, 0.07); }
.article-tag.violet { color: #a78bfa;               border-color: rgba(124, 58, 237, 0.3);  background: rgba(124, 58, 237, 0.07); }
.article-tag.green  { color: var(--accent-green);   border-color: rgba(16, 185, 129, 0.3);  background: rgba(16, 185, 129, 0.07); }

/* Read time indicator */
.read-time {
  font-family: var(--font-mono);
  font-size: 0.62em;
  color: var(--text-muted);
  margin-top: 0.35em;
  display: block;
  letter-spacing: 0.04em;
}
.read-time::before { content: '⏱ '; }

/* ── Footer ── */
#footer {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border-dim) !important;
  color: var(--text-muted);
}

#footer .copyright li {
  color: var(--text-muted);
  border-left-color: rgba(255,255,255,0.1);
}

#footer .copyright a {
  color: var(--text-muted);
}

#footer .copyright a:hover {
  color: var(--accent-cyan) !important;
}

/* ── Title Bar (mobile) ── */
#titleBar {
  background: var(--bg-secondary) !important;
  border-bottom: 1px solid var(--border-dim);
}

#titleBar .title { color: var(--text-primary) !important; }

#titleBar .toggle::before {
  background: var(--accent-cyan) !important;
}

/* ── Scrollbar styling ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(0, 212, 255, 0.5); }

/* ── Animations ── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: var(--glow-cyan); }
  50%       { box-shadow: 0 0 35px rgba(0,212,255,0.5), 0 0 80px rgba(0,212,255,0.15); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Subpage article content styling ── */
.blog-section h3 {
  color: var(--text-primary);
  font-size: 1.35em;
  font-weight: 600;
  margin: 2em 0 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--border-dim);
  letter-spacing: -0.01em;
}

.blog-section h3::before {
  content: '## ';
  color: var(--accent-violet);
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 400;
}

.blog-section h4 {
  color: var(--text-primary);
  font-size: 1.1em;
  font-weight: 600;
  margin: 1.5em 0 0.5em;
}

.blog-section p {
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 0.95em;
}

.blog-section ul {
  color: var(--text-secondary);
  font-size: 0.95em;
  line-height: 1.85;
  list-style: none;
  padding-left: 0;
}

.blog-section ul li::before {
  content: '→ ';
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* Major heading on subpages */
header.major h2 {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.5em;
  font-weight: 700;
  letter-spacing: -0.03em;
}

header.major h2 + p {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  -webkit-text-fill-color: var(--text-muted);
}

/* Subpage image */
.blog-section img,
#one > .container > div > img {
  border-radius: 10px;
  border: 1px solid var(--border-dim);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  margin-bottom: 2em;
}

/* Code blocks in blog sections */
.blog-section pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  overflow-x: auto;
}

/* ── Buttons ── */
input[type="submit"],
input[type="reset"],
input[type="button"],
.button {
  background-color: rgba(0, 212, 255, 0.1) !important;
  border: 1px solid rgba(0, 212, 255, 0.35) !important;
  color: var(--accent-cyan) !important;
  font-family: var(--font-mono);
  font-size: 0.8em;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 6px !important;
  transition: background-color 0.2s, box-shadow 0.2s !important;
}

input[type="submit"]:hover,
input[type="reset"]:hover,
input[type="button"]:hover,
.button:hover {
  background-color: rgba(0, 212, 255, 0.18) !important;
  box-shadow: 0 0 18px rgba(0, 212, 255, 0.25);
  color: #fff !important;
}

.button.primary {
  background: linear-gradient(135deg, rgba(0,212,255,0.2), rgba(124,58,237,0.2)) !important;
  border-color: rgba(0, 212, 255, 0.5) !important;
  color: var(--accent-cyan) !important;
}

.button.primary:hover {
  background: linear-gradient(135deg, rgba(0,212,255,0.3), rgba(124,58,237,0.3)) !important;
  box-shadow: 0 0 25px rgba(0, 212, 255, 0.3) !important;
}

/* ── Section #four — Subscribe ── */
#four h3 {
  color: var(--text-primary);
  font-size: 1.5em;
  letter-spacing: -0.02em;
  margin-bottom: 0.3em;
}

#four h3::before {
  content: '// ';
  color: var(--accent-violet);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

#four > .container > p {
  color: var(--text-muted);
  font-size: 0.9em;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  margin-bottom: 2em;
}

.subscribe-box {
  background: rgba(13, 17, 23, 0.6);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  padding: 2em 2.5em;
  max-width: 520px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.subscribe-box:focus-within {
  border-color: var(--border-glow);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.08);
}

.subscribe-row {
  display: flex;
  gap: 0.75em;
  align-items: center;
  margin-bottom: 0.75em;
}

.embeddable-buttondown-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72em;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.6em;
}

.subscribe-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72em;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: 0.85em;
}

#sub-email {
  flex: 1;
  background: rgba(0, 0, 0, 0.4) !important;
  border: 1px solid var(--border-dim) !important;
  border-radius: 6px !important;
  color: var(--text-primary) !important;
  font-family: var(--font-mono) !important;
  font-size: 0.82em !important;
  padding: 0 1em !important;
  height: 2.5em;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-width: 0;
  vertical-align: middle;
}

#sub-email::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

#sub-email:focus {
  border-color: rgba(0, 212, 255, 0.5) !important;
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}

.buttondown-credit {
  margin: 0.5em 0 0 !important;
}

.buttondown-credit a {
  font-family: var(--font-mono);
  font-size: 0.65em !important;
  color: var(--text-muted) !important;
  letter-spacing: 0.04em;
  border-bottom: none !important;
  text-shadow: none !important;
}

.buttondown-credit a:hover {
  color: var(--text-secondary) !important;
  text-shadow: none !important;
}

.subscribe-form input[type="submit"] {
  flex-shrink: 0;
  white-space: nowrap;
  cursor: pointer;
  padding: 0 1.4em !important;
  height: 2.5em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  vertical-align: middle;
}

.subscribe-note {
  color: var(--text-muted) !important;
  font-family: var(--font-mono);
  font-size: 0.72em !important;
  letter-spacing: 0.04em;
  margin: 0 !important;
}

.subscribe-note::before {
  content: '🔒 ';
}

@media screen and (max-width: 480px) {
  .subscribe-row {
    flex-direction: column;
    align-items: stretch;
  }

  .subscribe-form input[type="submit"] {
    width: 100%;
  }

  .subscribe-box {
    padding: 1.5em;
  }
}

/* ── HR ── */
hr {
  border-bottom-color: var(--border-dim) !important;
}

/* ── Responsive Adjustments ── */
@media screen and (max-width: 1024px) {
  body {
    background-size: 40px 40px;
  }
}

@media screen and (max-width: 736px) {
  ul.feature-icons li {
    width: 100%;
  }

  #one .container header.major h2 {
    font-size: 2.2em;
  }
}

/* ── Articles Toolbar (search + filter) ── */
.articles-toolbar {
  margin-bottom: 1.5em;
}

.articles-search {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-dim);
  border-radius: 6px;
  padding: 0.5em 1em;
  margin-bottom: 0.85em;
  gap: 0.6em;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.articles-search:focus-within {
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.07);
}

.s-icon {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8em;
  flex-shrink: 0;
  user-select: none;
}

#article-search {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.82em;
  letter-spacing: 0.02em;
  padding: 0;
}

#article-search::placeholder {
  color: var(--text-muted);
}

.search-count {
  font-family: var(--font-mono);
  font-size: 0.65em;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  flex-shrink: 0;
  white-space: nowrap;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
}

.filter-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68em;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  line-height: 1.4;
}

.filter-btn:hover {
  border-color: rgba(0, 212, 255, 0.4);
  color: var(--text-secondary);
  background: rgba(0, 212, 255, 0.05);
}

.filter-btn.active {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}

/* No-results message */
.no-results {
  display: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82em;
  text-align: center;
  padding: 2.5em 0;
  letter-spacing: 0.04em;
  grid-column: 1 / -1;
}

.no-results.visible {
  display: block;
}

/* ── Sidebar Toggle Button ── */
/* right is set in pixels by techguru.js (uses header.offsetWidth)
   so there is no em/pt unit mismatch. CSS only holds the initial offscreen
   fallback; JS overrides it immediately on DOMContentLoaded. */
#sidebar-toggle {
  position: fixed;
  right: -60px; /* offscreen until JS syncs */
  top: 50%;
  transform: translateY(-50%);
  z-index: 200;
  background: rgba(13, 17, 27, 0.92);
  border: 1px solid rgba(130, 110, 220, 0.55);
  color: rgba(160, 140, 255, 0.85);
  width: 22px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 8px;
  padding: 0;
  line-height: 1;
  transition: right 0.35s ease, background 0.2s, color 0.2s, border-color 0.2s;
  outline: none;
  box-shadow: 0 2px 16px rgba(0,0,0,0.45);
}

#sidebar-toggle:hover {
  background: rgba(130, 110, 220, 0.15);
  border-color: rgba(160, 140, 255, 0.7);
  color: #fff;
}

.toggle-arrow {
  font-size: 0.65em;
  transition: transform 0.35s ease;
  display: inline-block;
  pointer-events: none;
}

body.sidebar-collapsed #header {
  transform: translateX(100%);
}

body.sidebar-collapsed #wrapper {
  padding-right: 0 !important;
}

body.sidebar-collapsed {
  padding-right: 0 !important;
}

/* collapsed position is also set by JS (GAP px from right edge) */

body.sidebar-collapsed .toggle-arrow {
  transform: rotate(180deg);
}