/* ==========================================================================
   Albert Safiullin — Modern Coder Portfolio Stylesheet
   Dark-first, Minimalist, High-Performance, Responsive
   ========================================================================== */

:root {
  /* Dark Theme (Default) */
  --bg-primary: #090b10;
  --bg-secondary: #0f141f;
  --bg-card: #131826;
  --bg-card-hover: #182032;
  --bg-card-active: #1d263c;
  --bg-glass: rgba(15, 20, 31, 0.75);
  --bg-pill: rgba(255, 255, 255, 0.05);
  --bg-pill-hover: rgba(255, 255, 255, 0.1);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-highlight: rgba(59, 130, 246, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverted: #090b10;

  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-indigo: #6366f1;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-purple: #a855f7;

  --glow-color: rgba(59, 130, 246, 0.15);
  --glow-green: rgba(16, 185, 129, 0.2);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, Monaco, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px 0 rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px -5px var(--glow-color);

  --max-w: 1080px;
  --transition-fast: 0.18s ease;
  --transition-base: 0.28s ease;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-card-active: #e2e8f0;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-pill: rgba(0, 0, 0, 0.05);
  --bg-pill-hover: rgba(0, 0, 0, 0.08);

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.14);
  --border-highlight: rgba(59, 130, 246, 0.4);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverted: #ffffff;

  --glow-color: rgba(59, 130, 246, 0.08);
  --glow-green: rgba(16, 185, 129, 0.12);

  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px -4px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--glow-color), transparent 70%),
    linear-gradient(to bottom, transparent, var(--bg-primary) 600px);
  background-attachment: fixed;
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--transition-fast);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--border-medium);
  background: var(--bg-card);
  display: inline-block;
}

.brand-fallback {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.brand-name {
  color: var(--text-primary);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.25);
  font-family: var(--font-mono);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 0 0 var(--glow-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
  70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-pill);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  background: var(--bg-pill);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.theme-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--bg-pill-hover);
}

.btn-hire {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: var(--accent-blue);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-hire:hover {
  background: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  padding: 4.5rem 0 3rem 0;
}

.hero-intro {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 840px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  width: fit-content;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--text-primary);
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero-title .gradient-text {
  background: linear-gradient(135deg, #0f172a 30%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.5;
}

.hero-subtitle strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--text-inverted);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
  transform: translateY(-1px);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  gap: 0.45rem;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.gh-inline-btn {
  display: inline-flex;
  align-items: center;
}

/* ==========================================================================
   Metrics Bar
   ========================================================================== */

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin: 1.5rem 0 3.5rem 0;
  box-shadow: var(--shadow-sm);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-num {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
}

.metric-num.highlight {
  color: var(--accent-blue);
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */

.section {
  padding: 3rem 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-title-num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-blue);
  font-weight: 500;
}

.section-caption {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Tech Stack Matrix
   ========================================================================== */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  transition: all var(--transition-fast);
}

.skill-category-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.skill-category-title {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
  font-weight: 700;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.skill-pill {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.28rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--bg-pill);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--bg-pill-hover);
}

.skill-pill.featured {
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.08);
}

/* ==========================================================================
   Career Timeline
   ========================================================================== */

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 7px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-blue), var(--border-subtle));
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-blue);
  box-shadow: 0 0 0 4px var(--bg-primary);
}

.timeline-item.active .timeline-dot {
  border-color: var(--accent-green);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: all var(--transition-fast);
}

.timeline-content:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.timeline-role {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-role strong {
  color: var(--accent-blue);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-pill);
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.timeline-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-pill);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.timeline-toggle-wrap {
  margin-top: 1.25rem;
  text-align: center;
}

.btn-more-timeline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--accent-blue);
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: all var(--transition-fast);
}

.btn-more-timeline:hover {
  border-color: var(--accent-blue);
  background: var(--bg-card-hover);
}

/* ==========================================================================
   Projects Section
   ========================================================================== */

.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.filter-btn {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.filter-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.project-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.project-card:hover::before {
  opacity: 1;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.project-badge-wrap {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.project-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-pill);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.project-stat-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.project-title a:hover {
  color: var(--accent-blue);
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.project-tech-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-pill);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.project-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.85rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-subtle);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.project-link:hover {
  color: var(--accent-blue);
}

.project-link.primary {
  color: var(--accent-blue);
}

.project-link.primary:hover {
  color: #60a5fa;
}

/* ==========================================================================
   Writing / Blog Section
   ========================================================================== */

.writing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.writing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.writing-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.writing-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.writing-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

.writing-title a:hover {
  color: var(--accent-blue);
}

.writing-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1rem;
}

.writing-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--accent-blue);
  font-weight: 500;
}

/* ==========================================================================
   Mentoring & Connect Card
   ========================================================================== */

.connect-box {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin: 2rem 0;
  position: relative;
  overflow: hidden;
}

.connect-box::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, var(--glow-color) 0%, transparent 70%);
  pointer-events: none;
}

.connect-info {
  max-width: 580px;
}

.connect-title {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.connect-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.connect-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-subtle);
  margin-top: 3rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

.footer-link {
  color: var(--text-secondary);
}

.footer-link:hover {
  color: var(--accent-blue);
}

/* ==========================================================================
   Floating Quick Action Pill
   ========================================================================== */

.floating-contact-pill {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-medium);
  padding: 0.45rem 0.95rem 0.45rem 0.45rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
}

.floating-contact-pill:hover {
  transform: translateY(-2px);
  border-color: var(--accent-blue);
  box-shadow: 0 12px 28px -4px rgba(0, 0, 0, 0.5), 0 0 15px rgba(59, 130, 246, 0.25);
}

.floating-pill-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--accent-blue);
}

.floating-pill-text {
  display: flex;
  flex-direction: column;
}

.floating-pill-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.1;
}

.floating-pill-status {
  font-size: 0.68rem;
  color: var(--accent-green);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Tag Cloud & Project Highlighting
   ========================================================================== */

.tag-cloud-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin: 1.5rem 0 2.5rem 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.tag-cloud-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan), var(--accent-purple));
  opacity: 0.6;
}

.tag-cloud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.tag-cloud-title {
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tag-cloud-hint {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.tag-btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--bg-pill);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

/* Highlighted Active Tags (where projects exist) */
.tag-btn:not(.disabled) {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.32);
  color: #93c5fd;
  box-shadow: 0 0 14px -2px rgba(59, 130, 246, 0.2);
}

.tag-btn:not(.disabled):hover {
  background: rgba(59, 130, 246, 0.18);
  border-color: var(--accent-cyan);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 0 22px rgba(6, 182, 212, 0.4), 0 4px 14px rgba(0, 0, 0, 0.35);
}

.tag-btn:not(.disabled) .tag-count {
  background: rgba(59, 130, 246, 0.22);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.35);
  font-weight: 600;
}

.tag-btn.active:not(.disabled) {
  background: rgba(59, 130, 246, 0.28);
  color: #ffffff;
  border-color: #38bdf8;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.5);
}

.tag-count {
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

/* Disabled Tag (0 matching projects) - completely flat gray, no highlight */
.tag-btn.disabled,
.tag-btn[aria-disabled="true"] {
  opacity: 0.32;
  color: #64748b !important;
  background: rgba(255, 255, 255, 0.02) !important;
  border: 1px solid rgba(255, 255, 255, 0.06) !important;
  cursor: not-allowed !important;
  transform: none !important;
  box-shadow: none !important;
}

.tag-btn.disabled:hover,
.tag-btn[aria-disabled="true"]:hover {
  background: rgba(255, 255, 255, 0.02) !important;
  color: #64748b !important;
  border-color: rgba(255, 255, 255, 0.06) !important;
  transform: none !important;
  box-shadow: none !important;
}

.tag-btn.disabled .tag-count,
.tag-btn[aria-disabled="true"] .tag-count {
  background: rgba(255, 255, 255, 0.03) !important;
  color: #64748b !important;
  border: 1px solid rgba(255, 255, 255, 0.04) !important;
  opacity: 0.6;
}

[data-theme="light"] .tag-btn:not(.disabled) {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #1d4ed8;
  box-shadow: 0 1px 4px rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .tag-btn:not(.disabled):hover {
  background: rgba(59, 130, 246, 0.16);
  border-color: #2563eb;
  color: #1e40af;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.2);
}

[data-theme="light"] .tag-btn:not(.disabled) .tag-count {
  background: rgba(59, 130, 246, 0.18);
  color: #1d4ed8;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

[data-theme="light"] .tag-btn.disabled,
[data-theme="light"] .tag-btn[aria-disabled="true"] {
  opacity: 0.42;
  color: #94a3b8 !important;
  background: rgba(0, 0, 0, 0.02) !important;
  border: 1px solid rgba(0, 0, 0, 0.07) !important;
  box-shadow: none !important;
}

[data-theme="light"] .tag-btn.disabled .tag-count,
[data-theme="light"] .tag-btn[aria-disabled="true"] .tag-count {
  background: rgba(0, 0, 0, 0.04) !important;
  border: none !important;
}

/* Card Highlighting Glow Animation */
@keyframes projectCardGlow {
  0% {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.8), 0 0 35px rgba(59, 130, 246, 0.5);
    transform: translateY(-5px) scale(1.02);
  }
  30% {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.4), 0 0 45px rgba(6, 182, 212, 0.4);
    transform: translateY(-5px) scale(1.02);
  }
  70% {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), 0 0 25px rgba(59, 130, 246, 0.2);
    transform: translateY(-3px) scale(1.01);
  }
  100% {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
    transform: none;
  }
}

.project-card.highlighted {
  animation: projectCardGlow 2.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  z-index: 10;
}

.project-tech-pill.highlighted-pill {
  background: rgba(59, 130, 246, 0.25) !important;
  color: #93c5fd !important;
  border-color: var(--accent-blue) !important;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
}

.skill-pill {
  cursor: pointer;
}

.project-tech-pill {
  cursor: pointer;
  transition: all var(--transition-fast);
}

.project-tech-pill:hover {
  color: var(--text-primary);
  background: var(--bg-pill-hover);
  border-color: var(--accent-blue);
}

/* ==========================================================================
   Tag Projects Modal Popup
   ========================================================================== */

.tag-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 7, 13, 0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.tag-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.tag-modal-window {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  max-width: 620px;
  width: 100%;
  max-height: 84vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 65px -12px rgba(0, 0, 0, 0.85), 0 0 35px rgba(59, 130, 246, 0.2);
  transform: translateY(18px) scale(0.96);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  position: relative;
}

.tag-modal-backdrop.open .tag-modal-window {
  transform: translateY(0) scale(1);
}

.tag-modal-header {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--bg-card);
}

.tag-modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.tag-modal-heading {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.tag-modal-pill {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.tag-modal-count {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.tag-modal-close {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-pill);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-modal-close:hover {
  background: var(--bg-pill-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.tag-modal-body {
  padding: 1.15rem 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  overscroll-behavior: contain;
}

.tag-modal-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.05rem 1.25rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  transition: all var(--transition-fast);
  text-align: left;
}

.tag-modal-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.5), 0 0 16px rgba(59, 130, 246, 0.2);
}

.tag-modal-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.tag-modal-item-badges {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.tag-modal-item-year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-pill);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.tag-modal-item-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.tag-modal-item-cta {
  font-size: 0.8rem;
  color: var(--accent-blue);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.tag-modal-item:hover .tag-modal-item-cta {
  opacity: 1;
  color: #60a5fa;
}

.tag-modal-item-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.tag-modal-item:hover .tag-modal-item-title {
  color: #60a5fa;
}

.tag-modal-item-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tag-modal-item-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.25rem;
}

.tag-modal-item-tech-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-pill);
  padding: 0.12rem 0.42rem;
  border-radius: 4px;
}

.tag-modal-item-tech-pill.matched {
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.35);
  font-weight: 600;
}

.tag-modal-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }
  
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
    padding: 1.25rem;
  }

  .connect-box {
    padding: 1.75rem;
  }
}

@media (max-width: 580px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-section {
    padding: 2.75rem 0 2rem 0;
  }

  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .writing-grid {
    grid-template-columns: 1fr;
  }

  .connect-box {
    flex-direction: column;
    align-items: flex-start;
  }

  .floating-contact-pill {
    bottom: 16px;
    right: 16px;
  }
}