/* ==========================================================================
   Minimalist, Blazing-Fast Stylesheet for Gokul G (Gg)
   Theme: Crisp White Background with Modern Precision Blue Accents
   ========================================================================== */

:root {
  /* Default: Crisp White & Precision Blue */
  --bg: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-card: #f8fafc;
  --bg-card-hover: #f1f5f9;
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --text: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  /* Blue Palette */
  --accent: #2563eb;           /* Modern Royal Blue */
  --accent-hover: #1d4ed8;     /* Deep Blue */
  --accent-light: #3b82f6;     /* Bright Blue */
  --accent-soft: #eff6ff;      /* Very soft blue tint */
  --accent-border: #bfdbfe;    /* Subtle blue border */
  
  --emerald: #059669;
  --emerald-soft: #ecfdf5;
  --amber: #d97706;
  --amber-soft: #fffbeb;

  --code-bg: #f8fafc;
  --code-border: #e2e8f0;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Menlo, Consolas, monospace;
  --radius: 8px;
}

/* Optional Dark Mode (if toggled) */
[data-theme="dark"] {
  --bg: #09090b;
  --bg-subtle: #121215;
  --bg-card: #18181b;
  --bg-card-hover: #222226;
  --border: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(255, 255, 255, 0.2);
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-light: #60a5fa;
  --accent-soft: rgba(59, 130, 246, 0.12);
  --accent-border: rgba(59, 130, 246, 0.3);

  --emerald: #10b981;
  --emerald-soft: rgba(16, 185, 129, 0.12);
  --amber: #f59e0b;
  --amber-soft: rgba(245, 158, 11, 0.12);

  --code-bg: #141418;
  --code-border: rgba(255, 255, 255, 0.08);
}

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

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background-color 0.2s ease, color 0.2s ease;
}

::selection {
  background-color: var(--accent);
  color: #ffffff;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-border);
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

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

.wrapper {
  max-width: 720px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand:hover {
  color: var(--accent);
}

.brand span.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links a {
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* Hero */
.hero {
  margin-bottom: 3.75rem;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 1.25rem;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent);
  position: relative;
}

.live-dot::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: var(--accent);
  opacity: 0.4;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(0.9); opacity: 0; }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.hero-intro {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-muted);
}

.hero-name-highlight {
  color: var(--text);
  font-weight: 800;
}

.hero-headline {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.18;
  color: var(--text);
}

.gradient-blue {
  color: var(--accent);
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

[data-theme="dark"] .gradient-blue {
  background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  max-width: 640px;
}

.tagline-lead {
  display: block;
  font-size: 1.125rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.tagline-lead strong {
  color: var(--accent);
  font-weight: 700;
}

.tagline-sub {
  display: block;
  font-size: 0.975rem;
  color: var(--text-muted);
}

/* Proof Chips */
.hero-proof-chips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.75rem;
}

.proof-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.65rem 0.85rem;
  display: flex;
  flex-direction: column;
  transition: all 0.15s ease;
}

.proof-chip:hover {
  border-color: var(--accent-border);
  transform: translateY(-1px);
}

.chip-metric {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.chip-text {
  font-size: 0.775rem;
  color: var(--text-muted);
  line-height: 1.35;
  margin-top: 0.15rem;
}

.hero-cta-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid var(--accent);
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.15);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

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

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

/* Sections */
section {
  margin-bottom: 3.5rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--text);
}

.prose {
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.prose p {
  margin-bottom: 1rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose strong {
  color: var(--text);
  font-weight: 600;
}

/* Showcase Card (TangoDB) */
.showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 1rem;
  transition: all 0.15s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.showcase-card:hover {
  border-color: var(--accent-border);
  border-left-color: var(--accent);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.06);
}

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

.showcase-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.showcase-badge {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}

.maven-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 500;
}

/* Metrics Grid for TangoDB */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.metric-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem;
  transition: border-color 0.15s ease;
}

.metric-card:hover {
  border-color: var(--accent-border);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.metric-label {
  font-size: 0.775rem;
  color: var(--text);
  font-weight: 600;
  line-height: 1.4;
}

.metric-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* Concept Cards for TangoDB & Architecture */
.concepts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.concept-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem;
}

.concept-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.concept-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Honest Note Box */
.note-box {
  background: var(--amber-soft);
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0.85rem 1rem;
  margin-top: 1rem;
  font-size: 0.825rem;
  color: #78350f;
  line-height: 1.55;
}

[data-theme="dark"] .note-box {
  color: #fde68a;
}

.note-box strong {
  color: inherit;
}

/* Experience List */
.exp-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.exp-item {
  position: relative;
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.25rem;
}

.exp-role {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.exp-period {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.exp-org {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.exp-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  margin-bottom: 0.75rem;
}

.bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.bullets li {
  font-size: 0.885rem;
  color: var(--text-muted);
  line-height: 1.55;
  padding-left: 1rem;
  position: relative;
}

.bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Tag List */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

/* Project Cards */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: all 0.15s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.project-card:hover {
  border-color: var(--accent-border);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
}

.project-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.project-desc {
  font-size: 0.885rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.65rem;
}

/* Tech Stack */
.stack-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stack-item {
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.stack-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.stack-cat {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.stack-val {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Interests */
.interests-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.interest-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  transition: all 0.15s ease;
}

.interest-card:hover {
  border-color: var(--accent-border);
}

.interest-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.interest-desc {
  font-size: 0.775rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.compact-interests-bar {
  margin-top: 0.85rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  line-height: 1.5;
}

.compact-interests-bar strong {
  color: var(--text);
}

/* Contact & Footer */
.contact-section {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1rem;
  margin-bottom: 2rem;
}

.contact-links a, .copy-email-btn {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  background: transparent;
  border: none;
  font-family: inherit;
  font-weight: 500;
  transition: color 0.15s ease;
}

.contact-links a:hover, .copy-email-btn:hover {
  color: var(--accent);
}

.site-footer {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--accent);
  color: #ffffff;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
  display: none;
  z-index: 100;
}

.toast.show {
  display: block;
}

@media (max-width: 600px) {
  .concepts-grid, .interests-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    gap: 0.85rem;
  }
}