/* ==========================================================================
   Design System: Warm, Friendly Light Theme for James Kanka
   ========================================================================== */

:root {
  /* Warm Light Color Palette */
  --bg-primary: #fbfbf9;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f3f4f6;
  --bg-warm-tint: #fef8f0;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;

  --border-subtle: #e5e7eb;
  --border-medium: #d1d5db;
  --border-glow: #e0e7ff;
  --border-focus: #3b82f6;

  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --text-accent: #2563eb;

  /* Friendly Brand Accents */
  --accent-blue: #2563eb;
  --accent-indigo: #4f46e5;
  --accent-amber: #d97706;
  --accent-teal: #0d9488;
  --accent-coral: #e11d48;
  --accent-emerald: #059669;
  --accent-railway: #d92662;

  /* Gradients */
  --gradient-friendly: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  --gradient-warm: linear-gradient(135deg, #fef3c7 0%, #fee2e2 100%);
  --gradient-pill: linear-gradient(135deg, #eff6ff 0%, #eef2ff 100%);

  /* Typography & Layout */
  --max-width: 1120px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 4px 16px -2px rgba(0, 0, 0, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 12px 28px -4px rgba(0, 0, 0, 0.1), 0 4px 10px -2px rgba(0, 0, 0, 0.04);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

code, pre, .font-mono {
  font-family: 'JetBrains Mono', monospace;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(251, 251, 249, 0.9);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.1rem 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gradient-friendly);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

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

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
}

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

.nav-btn {
  background: #ffffff;
  border: 1px solid var(--border-medium);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-subtle);
}

.nav-btn:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

/* ==========================================================================
   Buttons & UI Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 3px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  background: #ffffff;
  border-color: var(--border-medium);
}

.btn-large {
  padding: 0.85rem 1.8rem;
  font-size: 1rem;
}

.btn-icon {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

.hero-section {
  padding: 4.5rem 0 3.5rem;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: #eff6ff;
  border: 1px solid #dbeafe;
  font-size: 0.85rem;
  font-weight: 600;
  color: #1e40af;
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px rgba(5, 150, 105, 0.5);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.25); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 1.25rem;
}

.hero-description {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.social-icon:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

/* Hero Photo Frame */
.hero-photo-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-photo-frame {
  width: 290px;
  height: 290px;
  border-radius: var(--radius-full);
  padding: 6px;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.hero-photo-frame:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-blue);
}

.hero-photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-full);
  display: block;
}

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

.section {
  padding: 4.5rem 0;
  position: relative;
}

.bg-section-alt {
  background: #f4f4f0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-blue);
  background: #eff6ff;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

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

/* ==========================================================================
   Featured Projects (MarScout & Neighborly)
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.project-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-glow);
}

.project-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.badge-railway {
  background: #fdf2f8;
  color: var(--accent-railway);
  border: 1px solid #fce7f3;
}

.badge-tech {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.badge-production {
  background: #ecfdf5;
  color: var(--accent-emerald);
  border: 1px solid #d1fae5;
}

.badge-active {
  background: #eff6ff;
  color: var(--accent-blue);
  border: 1px solid #dbeafe;
}

.dot-live {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

.project-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.icon-marscout {
  background: #fdf2f8;
  color: var(--accent-railway);
}

.icon-neighborly {
  background: #eff6ff;
  color: var(--accent-blue);
}

.project-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.project-domain {
  font-size: 0.85rem;
  color: var(--accent-blue);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  margin-bottom: 1rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.project-footer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.btn-card-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

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

.project-direct-link {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  text-align: center;
}

/* ==========================================================================
   AI Mini-Apps Section
   ========================================================================== */

.apps-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-tab {
  background: #ffffff;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

.filter-tab.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 280px;
}

.search-box svg {
  position: absolute;
  left: 0.9rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-medium);
  padding: 0.55rem 1rem 0.55rem 2.4rem;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

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

.app-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-blue);
}

.app-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.app-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: #eff6ff;
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.app-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.app-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.app-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

.btn-app-action {
  width: 100%;
  padding: 0.65rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  border: 1px solid var(--border-medium);
  background: #ffffff;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.btn-app-action:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
}

/* ==========================================================================
   Interactive Workbench
   ========================================================================== */

.interactive-workbench {
  margin-top: 2.5rem;
  background: #ffffff;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.workbench-header {
  padding: 1.25rem 1.75rem;
  background: #eff6ff;
  border-bottom: 1px solid #dbeafe;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.workbench-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.live-pill {
  font-size: 0.7rem;
  font-weight: 800;
  background: var(--accent-emerald);
  color: #ffffff;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
}

.workbench-content {
  padding: 2rem;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.tool-pane {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tool-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.tool-textarea {
  width: 100%;
  height: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 1rem;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  resize: vertical;
  outline: none;
}

.tool-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.tool-output {
  min-height: 200px;
  background: #111827;
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  color: #a5f3fc;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
  white-space: pre-wrap;
  overflow-y: auto;
}

.tool-actions-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* ==========================================================================
   Executive Experience & Impact Timeline
   ========================================================================== */

.timeline-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--border-glow);
}

.timeline-meta {
  border-right: 1px solid var(--border-subtle);
  padding-right: 1.5rem;
}

.timeline-role {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.timeline-company {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 0.5rem;
}

.timeline-dates {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

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

.timeline-bullets li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.timeline-bullets li::before {
  content: "•";
  position: absolute;
  left: 0.25rem;
  color: var(--accent-blue);
  font-size: 1.25rem;
  line-height: 1;
}

/* ==========================================================================
   Side B & Quick Facts (Personality & Highlights)
   ========================================================================== */

.side-b-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.side-b-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.side-b-icon {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

.side-b-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.side-b-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Posts / Writings Section (Clean, Real State)
   ========================================================================== */

.posts-container-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}

.posts-header-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.posts-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.post-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.post-row:hover {
  background: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-subtle);
  transform: translateX(4px);
}

.post-row-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.post-row-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.post-row-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
}

.post-empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
}

.post-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   Contact Box
   ========================================================================== */

.contact-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.contact-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.contact-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 2rem;
}

.contact-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Full-Screen Blog Note View
   ========================================================================== */

.note-view-container {
  min-height: 100vh;
  padding-bottom: 5rem;
  background: var(--bg-primary);
  animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.note-nav-bar {
  position: sticky;
  top: 73px;
  z-index: 90;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(251, 251, 249, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.9rem 0;
  margin-bottom: 2.5rem;
}

.note-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.btn-back:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateX(-3px);
}

.btn-share {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

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

.note-article-content {
  max-width: 760px;
  margin: 0 auto;
}

.note-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2rem;
}

.note-meta-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 1rem;
}

.note-separator {
  color: var(--border-medium);
}

.note-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.note-author-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.note-author-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid #ffffff;
  box-shadow: var(--shadow-subtle);
}

.note-author-info {
  display: flex;
  flex-direction: column;
}

.note-author-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.note-author-title {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.note-footer-nav {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.prose {
  color: #374151;
  font-size: 1.1rem;
  line-height: 1.85;
}

.prose p {
  margin-bottom: 1.5rem;
}

.prose h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 2.25rem 0 1rem;
}

.prose h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.75rem 0 0.75rem;
}

.prose ol, .prose ul {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose pre {
  background: #1e293b;
  color: #f8fafc;
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--text-primary);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow-hover);
  z-index: 300;
}

/* Utilities */
.hidden {
  display: none !important;
}

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

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 2.5rem 0;
  background: #ffffff;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.footer-logo {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.footer-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

@media (max-width: 900px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-title {
    font-size: 2.6rem;
  }

  .timeline-card {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .timeline-meta {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding-right: 0;
    padding-bottom: 1rem;
  }

  .tool-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-section {
    padding: 3rem 0 2rem;
  }

  .hero-title {
    font-size: 2.2rem;
  }

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

  .modal-body {
    padding: 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}