/* ==========================================================================
   Swarts Lab - Style System
   Color Palette: Charcoal, Off-White, Acid Green (#ccff00), Deep Slate
   ========================================================================== */

:root {
  --bg-dark: #0d0f12;
  --bg-card: #15181e;
  --bg-card-hover: #1c2028;
  --bg-input: #1b1f26;
  
  --text-main: #f0f2f5;
  --text-muted: #8c96a5;
  --text-dim: #5a6472;
  
  --accent-acid: #ccff00;
  --accent-acid-glow: rgba(204, 255, 0, 0.15);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-active: rgba(204, 255, 0, 0.4);
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
}

/* Reset & Core */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  position: relative;
}

/* Grid overlay background */
.grid-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
}

.text-accent {
  color: var(--accent-acid);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* UI Elements: Badges & Buttons */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-acid);
  box-shadow: 0 0 8px var(--accent-acid);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent-acid);
  color: #000;
  border-color: var(--accent-acid);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-acid-glow);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
}

.btn-outline {
  background: transparent;
  color: var(--accent-acid);
  border-color: var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-acid);
  background: var(--accent-acid-glow);
}

/* Header Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 14px;
  height: 14px;
  background-color: var(--accent-acid);
  transform: rotate(45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

/* Sections Base */
.section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-dark {
  background: rgba(0, 0, 0, 0.2);
}

.section-header {
  margin-bottom: 3.5rem;
  max-width: 650px;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Cards System */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Hero Section */
.hero-section {
  padding: 7rem 0 5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.8rem;
  letter-spacing: -0.03em;
  margin: 1.5rem 0;
  line-height: 1.05;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Interactive Node Box (Hero Visual) */
.interactive-node-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.node-header {
  background: rgba(0, 0, 0, 0.4);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-left: 0.5rem;
}

.node-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.code-line {
  margin-bottom: 0.5rem;
}

.c-dim { color: var(--text-dim); }
.c-val { color: var(--accent-acid); }

.node-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.metric-card {
  background: rgba(0, 0, 0, 0.3);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.metric-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.interactive-canvas-wrapper {
  width: 100%;
  height: 140px;
  background: rgba(0,0,0,0.5);
  border-radius: var(--radius-md);
  overflow: hidden;
}

#heroCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Tools Section */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.highlight-card {
  border-color: rgba(204, 255, 0, 0.3);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.card-icon {
  font-size: 1.4rem;
}

.status-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 600;
}

.status-live { background: rgba(204, 255, 0, 0.15); color: var(--accent-acid); border: 1px solid rgba(204, 255, 0, 0.3); }
.status-prototype { background: rgba(0, 150, 255, 0.15); color: #00aaff; border: 1px solid rgba(0, 150, 255, 0.3); }
.status-dev { background: rgba(255, 170, 0, 0.15); color: #ffaa00; border: 1px solid rgba(255, 170, 0, 0.3); }
.status-soon { background: rgba(255, 255, 255, 0.05); color: var(--text-muted); border: 1px solid var(--border-color); }

.tool-widget {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.input-group {
  margin-bottom: 1rem;
}

.input-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.input-group input, .custom-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: var(--transition);
}

.input-group input:focus, .custom-select:focus {
  outline: none;
  border-color: var(--accent-acid);
}

.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.calc-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.4);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
  font-size: 0.85rem;
}

.calc-result strong {
  font-family: var(--font-mono);
  color: var(--accent-acid);
  font-size: 1.1rem;
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

.check-item input[type="checkbox"] {
  accent-color: var(--accent-acid);
  width: 16px;
  height: 16px;
}

.card-footer-meta {
  margin-top: 2rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.03);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

/* Experiment Section */
.experiment-card {
  background: var(--bg-card);
  border: 1px solid var(--border-active);
  box-shadow: 0 0 30px rgba(204, 255, 0, 0.05);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.form-grid .full-width {
  grid-column: span 2;
}

.control-group label {
  display: block;
  margin-bottom: 0.5rem;
}

.control-group label span {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
}

.control-group label small {
  display: block;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.15rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

.result-box {
  margin-top: 2rem;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--accent-acid);
  border-radius: var(--radius-md);
  animation: fadeIn 0.3s ease-in-out;
}

.result-box.hidden {
  display: none;
}

.result-header {
  margin-bottom: 0.75rem;
}

.result-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.result-title {
  font-size: 1.8rem;
  color: var(--accent-acid);
}

.result-desc {
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.result-disclaimer {
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-acid);
  margin-bottom: 0.5rem;
}

/* Ventures Grid */
.ventures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.venture-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.venture-name {
  font-size: 1.4rem;
}

.venture-link {
  color: var(--accent-acid);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.venture-link:hover {
  text-decoration: underline;
}

.venture-focus {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
}

/* Writing & Research */
.articles-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.article-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.article-category {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.article-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.article-excerpt {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: start;
}

.about-lead {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-main);
  margin: 1.5rem 0 1rem 0;
  line-height: 1.4;
}

.about-text {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

.bio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.bio-heading {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.bio-list {
  list-style: none;
  margin-bottom: 2rem;
}

.bio-list li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  padding-left: 1.25rem;
}

.bio-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-acid);
}

.bio-location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Contact Section */
.contact-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(204, 255, 0, 0.03) 100%);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-action {
  margin-top: 2rem;
}

.email-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: var(--accent-acid);
  color: #000;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
}

.email-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px var(--accent-acid-glow);
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Styles */
@media (max-width: 992px) {
  .hero-grid, .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid .full-width {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    display: none;
  }

  .nav-menu.active {
    display: flex;
  }

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}