/* ==========================================================================
   WARM ARCHIVAL & CRAFT DESIGN SYSTEM
   Bespoke, Clean Engineering Portfolio Aesthetic
   Fully Responsive for Mobile, Tablet, Laptop, and Desktop
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,600;0,9..144,700;1,9..144,400&family=JetBrains+Mono:wght@400;500;600&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Warm Archival Palette (Light Mode) */
  --bg-base: #fbf9f4;
  --bg-surface: #f3efe6;
  --bg-surface-elevated: #ffffff;
  --bg-card: #ffffff;
  
  --text-primary: #181716;
  --text-secondary: #565149;
  --text-muted: #827c73;
  
  --border-subtle: #e2dcd1;
  --border-strong: #c8c0b2;
  
  --accent-terracotta: #b84a39;
  --accent-terracotta-soft: rgba(184, 74, 57, 0.1);
  --accent-bronze: #384d3b;
  --accent-bronze-soft: rgba(56, 77, 59, 0.1);
  --accent-amber: #b5741e;

  /* Typography Stacks */
  --font-serif: 'Fraunces', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Spacing & Layout */
  --max-width: 980px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  
  --shadow-subtle: 0 2px 8px rgba(24, 23, 22, 0.04);
  --shadow-card: 0 4px 16px rgba(24, 23, 22, 0.05);
  --shadow-elevated: 0 12px 32px rgba(24, 23, 22, 0.08);

  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  /* Warm Obsidian (Dark Mode) */
  --bg-base: #121211;
  --bg-surface: #1a1917;
  --bg-surface-elevated: #22211e;
  --bg-card: #1c1b18;
  
  --text-primary: #f5f2eb;
  --text-secondary: #a39e94;
  --text-muted: #6e6960;
  
  --border-subtle: #292723;
  --border-strong: #3d3a33;
  
  --accent-terracotta: #de6552;
  --accent-terracotta-soft: rgba(222, 101, 82, 0.16);
  --accent-bronze: #84a383;
  --accent-bronze-soft: rgba(132, 163, 131, 0.16);
  --accent-amber: #e29e44;

  --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-elevated: 0 12px 32px rgba(0, 0, 0, 0.45);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  width: 100%;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Focus Accessibility */
:focus-visible {
  outline: 2px solid var(--accent-terracotta);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (max-width: 640px) {
  .container {
    padding: 0 1.15rem;
  }
}

/* ==========================================================================
   HEADER & NAVIGATION BAR
   ========================================================================== */
.site-header {
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(251, 249, 244, 0.88);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

[data-theme="dark"] .site-header {
  background: rgba(18, 18, 17, 0.88);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 0;
  gap: 1rem;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.15;
}

.brand-role {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.15rem;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  padding: 0.25rem 0;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-terracotta);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.theme-toggle,
.print-btn,
.kbd-help-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.65rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition);
  user-select: none;
}

.theme-toggle:hover,
.print-btn:hover,
.kbd-help-btn:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

/* Mobile Header Layout (< 768px) */
@media (max-width: 768px) {
  .header-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0 0.65rem;
    row-gap: 0.65rem;
  }

  .brand {
    order: 1;
  }

  .nav-group {
    display: contents;
  }

  .header-controls {
    order: 2;
  }

  .nav-links {
    order: 3;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    padding: 0.2rem 0 0.35rem;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    display: inline-block;
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    border-radius: 999px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
  }

  .nav-link:hover,
  .nav-link.active {
    background: var(--text-primary);
    color: var(--bg-base);
    border-color: var(--text-primary);
  }

  .nav-link.active::after {
    display: none;
  }
}

/* ==========================================================================
   HERO EDITORIAL SECTION
   ========================================================================== */
.hero-section {
  padding: clamp(2.5rem, 6vw, 4.25rem) 0 clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--border-subtle);
}

.hero-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1.25rem;
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 2vw, 0.8rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--accent-bronze-soft);
  color: var(--accent-bronze);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-weight: 500;
  border: 1px solid rgba(56, 77, 59, 0.15);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 0 currentColor;
  animation: pulse 2.2s infinite cubic-bezier(0.66, 0, 0, 1);
}

@keyframes pulse {
  to {
    box-shadow: 0 0 0 7px rgba(0, 0, 0, 0);
  }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 5vw, 2.85rem);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent-terracotta);
}

.hero-intro {
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  line-height: 1.68;
  color: var(--text-secondary);
  max-width: 760px;
  margin-bottom: 1.85rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    justify-content: center;
    width: 100%;
  }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: var(--text-primary);
  color: var(--bg-base);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid var(--text-primary);
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--accent-terracotta);
  border-color: var(--accent-terracotta);
  color: #ffffff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: transparent;
  color: var(--text-primary);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  transition: var(--transition);
  cursor: pointer;
}

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

/* Callout Strip */
.credo-strip {
  background: var(--bg-surface);
  border-left: 3px solid var(--accent-terracotta);
  padding: 1rem 1.35rem;
  margin: 2.25rem 0 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.credo-text {
  font-family: var(--font-sans);
  font-size: clamp(0.92rem, 1.8vw, 1rem);
  color: var(--text-primary);
  line-height: 1.6;
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
.section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 2rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 0.35rem;
  display: block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: clamp(0.88rem, 1.8vw, 0.98rem);
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.6;
}

/* ==========================================================================
   CASE STUDIES LIST
   ========================================================================== */
.case-study-grid {
  display: flex;
  flex-direction: column;
  gap: 1.85rem;
}

.case-study-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-subtle);
}

.case-study-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.cs-meta-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.cs-badge {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  color: var(--text-secondary);
}

.cs-title {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.8vw, 1.55rem);
  font-weight: 700;
  margin-bottom: 0.65rem;
  line-height: 1.3;
}

.cs-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

.cs-title a:hover {
  color: var(--accent-terracotta);
}

.cs-summary {
  font-size: clamp(0.92rem, 1.8vw, 1rem);
  color: var(--text-secondary);
  line-height: 1.62;
  margin-bottom: 1.35rem;
}

.cs-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1.35rem;
}

@media (max-width: 720px) {
  .cs-breakdown {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem;
  }
}

.breakdown-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-terracotta);
  margin-bottom: 0.35rem;
}

.breakdown-col p {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* Metrics Row */
.cs-metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.35rem;
}

@media (max-width: 480px) {
  .cs-metrics-row {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
}

.metric-pill {
  background: var(--accent-bronze-soft);
  border: 1px solid rgba(56, 77, 59, 0.18);
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-family: var(--font-mono);
}

.metric-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-bronze);
  line-height: 1.2;
}

.metric-lbl {
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.2;
}

.cs-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.cs-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.cs-link-arrow {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition);
}

.cs-link-arrow:hover {
  color: var(--accent-terracotta);
  transform: translateX(3px);
}

/* ==========================================================================
   ENGINEERING NOTES & ESSAYS GRID
   ========================================================================== */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.note-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: var(--shadow-subtle);
}

.note-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.note-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.note-badge {
  color: var(--accent-terracotta);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.note-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.32;
  margin-bottom: 0.65rem;
  color: var(--text-primary);
}

.note-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.note-body {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.95rem;
  margin-bottom: 1rem;
}

.note-takeaways {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.75rem;
}

.takeaway-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.takeaway-list {
  padding-left: 1.1rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* ==========================================================================
   ENGINEERING LAB & LATENCY VISUALIZER
   ========================================================================== */
.lab-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-subtle);
}

.lab-desc {
  font-size: clamp(0.88rem, 1.8vw, 0.95rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.65;
}

.latency-simulator {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.latency-row {
  display: grid;
  grid-template-columns: 200px 1fr 120px;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

@media (max-width: 640px) {
  .latency-row {
    grid-template-columns: 1fr auto;
    gap: 0.35rem 0.5rem;
    align-items: baseline;
  }
}

.latency-name {
  color: var(--text-primary);
  font-weight: 500;
}

.latency-bar-container {
  background: var(--bg-surface);
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-subtle);
}

@media (max-width: 640px) {
  .latency-bar-container {
    grid-column: 1 / -1;
    height: 10px;
  }
}

.latency-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--accent-terracotta);
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.latency-bar-fill.bronze {
  background: var(--accent-bronze);
}

.latency-bar-fill.amber {
  background: var(--accent-amber);
}

.latency-time {
  text-align: right;
  color: var(--text-secondary);
}

.lab-interactive-action {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .lab-interactive-action {
    flex-direction: column;
    align-items: stretch;
  }
  .lab-interactive-action > div:first-child {
    flex-direction: column;
  }
}

.lab-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 0.5rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.lab-live-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Benchmark Output Panel */
.bench-output-panel {
  margin-top: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 1.15rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.bench-output-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-terracotta);
  margin-bottom: 0.45rem;
  font-weight: 600;
}

.bench-pre {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ==========================================================================
   PHILOSOPHY & PRINCIPLES
   ========================================================================== */
.opinions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.35rem;
}

.opinion-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 2.5vw, 1.6rem);
  box-shadow: var(--shadow-subtle);
}

.opinion-topic {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.45rem;
}

.opinion-headline {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.opinion-body {
  font-size: 0.88rem;
  line-height: 1.62;
  color: var(--text-secondary);
}

/* ==========================================================================
   NOW PAGE & COLOPHON
   ========================================================================== */
.now-colophon-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

@media (max-width: 768px) {
  .now-colophon-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

.archival-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  box-shadow: var(--shadow-subtle);
}

.archival-box h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin-bottom: 0.95rem;
  color: var(--text-primary);
}

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

.now-item {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.now-bullet {
  color: var(--accent-terracotta);
  font-weight: 700;
}

.colophon-specs {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.spec-line {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--border-subtle);
  padding-bottom: 0.35rem;
  gap: 0.5rem;
}

.spec-key {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.spec-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-primary);
  text-align: right;
  word-break: break-all;
}

/* ==========================================================================
   FOOTER & LIVE TELEMETRY
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-base);
  padding: 2.25rem 0 3.25rem;
  margin-top: auto;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.telemetry-strip {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.15rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  width: 100%;
  box-shadow: var(--shadow-subtle);
}

@media (max-width: 640px) {
  .telemetry-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
    padding: 0.75rem 0.95rem;
  }
}

.telemetry-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.telemetry-label {
  color: var(--text-muted);
}

.telemetry-value {
  color: var(--text-primary);
  font-weight: 600;
}

.telemetry-value.accent {
  color: var(--accent-bronze);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

.footer-links {
  display: flex;
  gap: 1.15rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-primary);
}

/* ==========================================================================
   PROJECT DETAIL PAGES & ARTICLE STYLING
   ========================================================================== */
article header h1 {
  font-family: var(--font-serif) !important;
  font-size: clamp(1.75rem, 4.5vw, 2.65rem) !important;
  line-height: 1.18 !important;
  color: var(--text-primary) !important;
  margin-bottom: 0.85rem !important;
}

article header p {
  font-size: clamp(1rem, 2.2vw, 1.15rem) !important;
  line-height: 1.65 !important;
}

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

pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   RESUME SHEET STYLING
   ========================================================================== */
.resume-sheet {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 4vw, 3rem);
  box-shadow: var(--shadow-card);
}

.resume-header {
  border-bottom: 2px solid var(--text-primary);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .resume-header {
    flex-direction: column;
    align-items: flex-start !important;
  }
  .resume-header > div:last-child {
    text-align: left !important;
  }
}

/* ==========================================================================
   INTERACTIVE TERMINAL DRAWER
   ========================================================================== */
.cli-drawer {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(105%);
  width: min(840px, 94vw);
  background: #111315;
  color: #d1d5db;
  border: 1px solid #2b2f36;
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  box-shadow: 0 -12px 36px rgba(0, 0, 0, 0.45);
  z-index: 99;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
  max-height: 380px;
}

.cli-drawer.open {
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 640px) {
  .cli-drawer {
    width: 100vw;
    left: 0;
    transform: translateY(105%);
    border-radius: 14px 14px 0 0;
    border-left: none;
    border-right: none;
    max-height: 65vh;
  }
  .cli-drawer.open {
    transform: translateY(0);
  }
}

.cli-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: #181b20;
  border-bottom: 1px solid #2b2f36;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  font-size: 0.78rem;
}

.cli-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #9ca3af;
  font-weight: 500;
}

.cli-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.cli-hint {
  font-size: 0.72rem;
  color: #6b7280;
}

@media (max-width: 480px) {
  .cli-hint {
    display: none;
  }
}

.cli-close {
  background: transparent;
  border: none;
  color: #9ca3af;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  font-size: 1rem;
  border-radius: 4px;
  line-height: 1;
}

.cli-close:hover {
  background: #2b2f36;
  color: #ffffff;
}

.cli-output {
  padding: 0.85rem 1rem;
  overflow-y: auto;
  font-size: 0.8rem;
  line-height: 1.55;
  min-height: 140px;
  max-height: 240px;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.cli-line {
  color: #e5e7eb;
}

.cli-line.text-muted {
  color: #9ca3af;
}

.cli-line.cmd {
  color: #38bdf8;
}

.cli-line.success {
  color: #4ade80;
}

.cli-line.accent {
  color: #fb923c;
}

.cli-input-form {
  display: flex;
  align-items: center;
  padding: 0.5rem 1rem 0.75rem;
  background: #111315;
  border-top: 1px solid #1f2329;
  gap: 0.5rem;
}

.cli-prompt {
  color: #38bdf8;
  font-weight: 700;
  font-size: 0.88rem;
}

.cli-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #f3f4f6;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  outline: none;
}

/* ==========================================================================
   PRINT STYLESHEET (@media print)
   ========================================================================== */
@media print {
  :root {
    --bg-base: #ffffff !important;
    --bg-surface: #ffffff !important;
    --bg-card: #ffffff !important;
    --text-primary: #000000 !important;
    --text-secondary: #222222 !important;
    --border-subtle: #cccccc !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 10.5pt;
  }

  .site-header,
  .site-footer,
  .hero-actions,
  .lab-box,
  .theme-toggle,
  .print-btn,
  .kbd-help-btn,
  .cli-drawer {
    display: none !important;
  }

  .container {
    max-width: 100% !important;
    padding: 0 !important;
  }

  .resume-sheet {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }

  .section {
    padding: 1.25rem 0 !important;
    page-break-inside: avoid;
  }
}