/* ==========================================================================
   NODEAGENTIC CORE STYLESHEET
   Architected for extreme minimalism, typographic refinement, and lightning load.
   References: Anthropic.com aesthetic + Modern Web Standards.
   ========================================================================== */

@import url('tokens.css');
@import url('animations.css');
@import url('../fonts/fonts.css');

/* ==========================================================================
   1. MODERN RESET (Targeted, non-destructive, modern-web-guidance compliant)
   ========================================================================== */

html {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

@view-transition {
  navigation: auto;
}

*, *::before, *::after {
  box-sizing: inherit;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
  overflow-x: hidden;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-family-serif);
  font-weight: 400;
  line-height: var(--leading-tight);
  color: var(--text-primary);
  text-wrap: balance;
  letter-spacing: -0.015em;
}

p {
  margin: 0 0 var(--space-4) 0;
  line-height: var(--leading-relaxed);
  text-wrap: pretty;
  color: var(--text-secondary);
}

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

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

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

code, pre, kbd, samp {
  font-family: var(--font-family-mono);
  font-size: 0.88em;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

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

/* Phosphor Icon Styling */
.ph-icon {
  display: inline-block;
  width: 1.15em;
  height: 1.15em;
  vertical-align: -0.15em;
  fill: currentColor;
  flex-shrink: 0;
  overflow: visible;
}

.ph-icon-sm {
  width: 0.95em;
  height: 0.95em;
}

.ph-icon-lg {
  width: 1.4em;
  height: 1.4em;
}

/* ==========================================================================
   2. GLOBAL LAYOUT SYSTEM
   ========================================================================== */

.site-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

.container-narrow {
  max-width: 860px;
}

.container-reading {
  max-width: var(--container-reading-width);
}

/* Hairline Grid Dividers */
.section-divider {
  border: none;
  border-top: 1px solid var(--border-primary);
  margin: 0;
  width: 100%;
}

/* Smooth Scroll Section Anchor Offsets */
.scroll-mt,
#thesis,
#systems,
#research,
#dispatch {
  scroll-margin-top: var(--header-height, 64px);
}

/* Section Header Meta */
.section-marker {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.section-marker::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* ==========================================================================
   3. NAVIGATION BAR
   ========================================================================== */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height, 64px);
  box-sizing: border-box;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  transition: background-color var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.site-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: var(--text-base);
}

.brand-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
}

.brand-logo {
  display: block;
  height: 36px;
  width: auto;
  aspect-ratio: 419 / 460;
  flex-shrink: 0;
}

.logo-dark {
  display: none;
}

.logo-light {
  display: block;
}

[data-theme="dark"] .logo-dark {
  display: block;
}

[data-theme="dark"] .logo-light {
  display: none;
}

.brand-text {
  font-family: var(--font-family-brand);
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  line-height: 1;
}
.brand-text em {
  font-style: italic;
  color: var(--color-accent);
}

.brand-badge {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: var(--space-1) 0;
  transition: color var(--duration-fast) ease;
}

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

.nav-link.is-active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Nav Social Link */
.nav-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: var(--bg-surface);
  transition: border-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

.nav-social-link:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: var(--bg-surface);
  overflow: visible;
  transition: border-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

.theme-toggle-btn .ph-icon {
  vertical-align: middle;
  margin: 0;
}

.theme-toggle-btn:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.theme-toggle-icon-dark {
  display: none;
}

[data-theme="dark"] .theme-toggle-icon-light {
  display: none;
}

[data-theme="dark"] .theme-toggle-icon-dark {
  display: block;
}

/* Mobile Nav Toggle - Premium Borderless Animated Button */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  box-shadow: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 6px;
  position: relative;
  z-index: 10001;
  transition: opacity var(--duration-fast) ease;
}

.mobile-nav-toggle:hover {
  opacity: 0.75;
}

.hamburger-box {
  width: 20px;
  height: 12px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 1.75px;
  background-color: var(--text-primary);
  border-radius: 1px;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), background-color var(--duration-fast) ease;
  transform-origin: center;
}

.mobile-nav-toggle.is-active .top-line {
  transform: translateY(5.125px) rotate(45deg);
}

.mobile-nav-toggle.is-active .bot-line {
  transform: translateY(-5.125px) rotate(-45deg);
}

/* ==========================================================================
   4. BUTTON & BADGE COMPONENTS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 0.625rem 1.125rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-editorial);
  white-space: nowrap;
  line-height: 1;
}

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

.btn-primary:hover {
  background-color: var(--button-primary-hover);
  border-color: var(--button-primary-hover);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: var(--button-secondary-hover);
  border-color: var(--border-strong);
}

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

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

.btn-sm {
  font-size: var(--text-xs);
  padding: 0.45rem 0.85rem;
}

.btn-lg {
  font-size: var(--text-base);
  padding: 0.85rem 1.6rem;
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background-color: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
  letter-spacing: 0.02em;
}

.badge-accent {
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  border-color: transparent;
}

.badge-status {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
}

/* ==========================================================================
   5. HERO SECTION (ANTHROPIC EDITORIAL CALM)
   ========================================================================== */

.hero-section {
  min-height: calc(100vh - var(--header-height, 64px));
  min-height: calc(100dvh - var(--header-height, 64px));
  display: flex;
  align-items: center;
  padding-top: clamp(3rem, 6vw, 6rem);
  padding-bottom: clamp(3rem, 6vw, 6rem);
  border-bottom: 1px solid var(--border-primary);
  box-sizing: border-box;
}

.hero-section > .container {
  width: 100%;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.hero-eyebrow-container {
  margin-bottom: var(--space-6);
}

.hero-eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
}

.hero-eyebrow-badge .eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: inline-block;
}

.hero-headline {
  font-size: var(--text-display);
  font-family: var(--font-family-serif);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-6);
  max-width: 18ch;
  hyphens: none;
  -webkit-hyphens: none;
}

.hyphens-none {
  hyphens: none !important;
  -webkit-hyphens: none !important;
}

.hero-headline em {
  font-style: italic;
  font-family: var(--font-family-serif);
  color: var(--color-accent);
}

.hero-subhead {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 62ch;
  margin-bottom: var(--space-8);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-hardware-strip {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  flex-wrap: wrap;
}

.hardware-strip-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ==========================================================================
   6. VALUE PILLARS & ARCHITECTURE GRID
   ========================================================================== */

.pillars-section {
  min-height: calc(100vh - var(--header-height, 64px));
  min-height: calc(100dvh - var(--header-height, 64px));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(3.5rem, 6vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 5.5rem);
  border-bottom: 1px solid var(--border-primary);
  box-sizing: border-box;
}

.pillars-section > .container {
  width: 100%;
}

.section-head-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
  align-items: end;
}

.section-title {
  font-size: var(--text-3xl);
  line-height: 1.15;
  color: var(--text-foreground, #111113);
  opacity: 1 !important;
  visibility: visible !important;
}

[data-theme="dark"] .section-title {
  color: var(--text-foreground, #F4F3EF);
}

/* Theme foreground & text layout utilities */
.text-foreground {
  color: var(--text-foreground, #111113) !important;
  opacity: 1 !important;
  visibility: visible !important;
}

[data-theme="dark"] .text-foreground {
  color: var(--text-foreground, #F4F3EF) !important;
}

.whitespace-nowrap {
  white-space: nowrap !important;
}

.section-lede {
  font-size: var(--text-md);
  color: var(--text-secondary);
  margin: 0;
}

.grid-four {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--border-primary);
  border: 1px solid var(--border-primary);
}

.grid-thesis {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  width: 100%;
  gap: 1px;
  background-color: var(--border-primary);
  border: 1px solid var(--border-primary);
}

/* Responsive grid utilities */
.grid-cols-1 {
  display: grid;
  grid-template-columns: 1fr;
  width: 100%;
}

@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

.pillar-card {
  background-color: var(--bg-primary);
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  transition: background-color var(--duration-fast) ease;
}

.pillar-card:hover {
  background-color: var(--bg-surface);
}

.pillar-number {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}

.pillar-title {
  font-family: var(--font-family-serif);
  font-size: var(--text-2xl);
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

.pillar-description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0;
}

/* ==========================================================================
   6B. FLAGSHIP SYSTEM SPOTLIGHT (SOCRATES)
   ========================================================================== */

.systems-section {
  min-height: calc(100vh - var(--header-height, 64px));
  min-height: calc(100dvh - var(--header-height, 64px));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(3.5rem, 6vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 5.5rem);
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
  box-sizing: border-box;
}

.systems-section > .container {
  width: 100%;
}

.system-spotlight-card {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  overflow: hidden;
  box-shadow: var(--shadow-elevation);
}

.system-card-header {
  padding: var(--space-3) var(--space-6);
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
}

.system-status-badge {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-accent);
  font-weight: 500;
}

.system-card-main {
  padding: clamp(1.5rem, 4vw, 3rem);
}

.system-title {
  font-family: var(--font-family-serif);
  font-size: clamp(1.6rem, 2.5vw, 2.4rem);
  line-height: 1.2;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.system-title code {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
  color: var(--color-accent);
  background-color: var(--bg-subtle);
  padding: 0.15em 0.35em;
  border-radius: var(--radius-xs);
}

.system-lede {
  font-size: var(--text-md);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 75ch;
  margin-bottom: var(--space-8);
}

.system-highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-6);
}

.system-highlight-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.highlight-title {
  font-family: var(--font-family-sans);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.highlight-title code {
  font-size: 0.88em;
}

.highlight-body {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0;
}

.system-spec-pills {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.spec-pill {
  padding: 0.25rem 0.6rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.spec-separator {
  color: var(--border-strong);
}

.system-card-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ==========================================================================
   7. INTERACTIVE TELEMETRY & RUNTIME SANDBOX (HTMX-POWERED)
   ========================================================================== */

.sandbox-section {
  padding-top: clamp(4rem, 7vw, 6rem);
  padding-bottom: clamp(4rem, 7vw, 6rem);
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
}

.terminal-box {
  background-color: #0E0D0C;
  color: #ECE9E2;
  border: 1px solid #2B2925;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation);
  overflow: hidden;
  font-family: var(--font-family-mono);
}

.terminal-header {
  background-color: #171614;
  border-bottom: 1px solid #2B2925;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
}

.terminal-tabs {
  display: flex;
  gap: var(--space-2);
}

.terminal-tab-btn {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
  color: #8C8880;
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--duration-fast) ease;
}

.terminal-tab-btn:hover {
  color: #ECE9E2;
  background-color: #22201D;
}

.terminal-tab-btn.is-active {
  color: #FAF9F5;
  background-color: #22201D;
  border-color: #383631;
}

.terminal-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: #8C8880;
}

.terminal-body {
  padding: 1.5rem;
  font-size: var(--text-xs);
  line-height: 1.7;
  color: #D4D0C8;
  min-height: 280px;
}

.terminal-body .term-line {
  display: flex;
  gap: var(--space-3);
  margin-bottom: 0.35rem;
}

.terminal-body .term-prompt {
  color: var(--color-accent);
  user-select: none;
}

.terminal-body .term-highlight {
  color: #4ADE80;
}

.terminal-body .term-cyan {
  color: #38BDF8;
}

.terminal-body .term-dim {
  color: #6B6862;
}

.terminal-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: #2B2925;
  border-top: 1px solid #2B2925;
}

.stat-cell {
  background-color: #121110;
  padding: 1rem;
}

.stat-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #8C8880;
  margin-bottom: 0.25rem;
}

.stat-value {
  font-size: var(--text-sm);
  font-weight: 500;
  color: #FAF9F5;
}

/* ==========================================================================
   8. RESEARCH & WHITEPAPERS SHOWCASE
   ========================================================================== */

.research-section {
  min-height: calc(100vh - var(--header-height, 64px));
  min-height: calc(100dvh - var(--header-height, 64px));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(3.5rem, 6vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 5.5rem);
  border-bottom: 1px solid var(--border-primary);
  box-sizing: border-box;
}

.research-section > .container {
  width: 100%;
}

.papers-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-primary);
}

.paper-item {
  display: grid;
  grid-template-columns: 140px 1fr 180px;
  gap: var(--space-6);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border-primary);
  align-items: baseline;
  transition: background-color var(--duration-fast) ease;
}

.paper-item:hover .paper-title {
  color: var(--color-accent);
}

.paper-meta {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.paper-pub-tag {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}

.paper-pub-date {
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-family: var(--font-family-mono);
}

.notify-pill {
  white-space: nowrap;
}

.paper-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.paper-title {
  font-family: var(--font-family-serif);
  font-size: var(--text-xl);
  line-height: 1.25;
  color: var(--text-primary);
  transition: color var(--duration-fast) ease;
}

.paper-abstract {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0;
}

.paper-tags {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

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

/* ==========================================================================
   9. DISPATCH (NEWSLETTER HTMX EXTENSIBLE COMPONENT)
   ========================================================================== */

.dispatch-section {
  min-height: calc(100vh - var(--header-height, 64px) - var(--footer-height, 280px));
  min-height: calc(100dvh - var(--header-height, 64px) - var(--footer-height, 280px));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(3rem, 5vw, 4.5rem);
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-surface);
  box-sizing: border-box;
}

.dispatch-section > .container {
  width: 100%;
}

.dispatch-card {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-12);
  align-items: center;
}

.dispatch-info {
  display: flex;
  flex-direction: column;
}

.dispatch-form-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.dispatch-form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.dispatch-filter-pills {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.filter-pill-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
  cursor: pointer;
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  user-select: none;
  transition: all var(--duration-fast) ease;
}

.filter-pill-label:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.filter-pill-checkbox {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.filter-pill-custom {
  display: inline-block;
  width: 13px;
  height: 13px;
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  position: relative;
  transition: background-color var(--duration-fast) ease, border-color var(--duration-fast) ease;
  flex-shrink: 0;
}

.filter-pill-checkbox:checked + .filter-pill-custom {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.filter-pill-checkbox:checked + .filter-pill-custom::after {
  content: "";
  position: absolute;
  left: 3.5px;
  top: 1px;
  width: 4px;
  height: 7px;
  border: solid var(--button-accent-text, #101513);
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}

.dispatch-input-row {
  display: flex;
  gap: var(--space-2);
}

.dispatch-subtext {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: var(--leading-normal);
}

.direct-contact-link {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) ease;
}

.direct-contact-link:hover {
  color: var(--color-accent);
}

.dispatch-form {
  display: flex;
  gap: var(--space-2);
}

.input-text {
  flex: 1;
  padding: 0.65rem 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--duration-fast) ease;
}

.input-text:focus {
  border-color: var(--text-primary);
}

.dispatch-notice {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Dispatch Success State */
.dispatch-success {
  background-color: var(--status-emerald-subtle);
  border: 1px solid rgba(46, 111, 64, 0.2);
  border-radius: var(--radius-sm);
  padding: var(--space-4) var(--space-5);
  color: var(--status-emerald);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: var(--text-sm);
}

.dispatch-success-mono {
  font-family: var(--font-family-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--status-emerald);
  letter-spacing: 0.04em;
}

.dispatch-success-sub {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin: 0;
}

/* ==========================================================================
   10. SITE FOOTER & COLOPHON
   ========================================================================== */

.site-footer {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-primary);
  font-size: var(--text-sm);
}

.footer-split {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: var(--space-12);
  align-items: start;
}

.footer-col-brand {
  display: flex;
  flex-direction: column;
}

.footer-brand-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-brand-desc {
  font-size: var(--text-sm);
  max-width: 42ch;
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}

.footer-copyright-note {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.footer-links-triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer-links-group {
  display: flex;
  flex-direction: column;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-social-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  transition: color var(--duration-fast) ease;
}

.footer-social-link:hover {
  color: var(--text-primary);
}

.footer-col-title {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  color: var(--text-secondary);
  transition: color var(--duration-fast) ease;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-primary);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ==========================================================================
   11. RESPONSIVE MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1024px) {
  .grid-four {
    grid-template-columns: repeat(2, 1fr);
  }

  .paper-item {
    grid-template-columns: 120px 1fr 140px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

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

  .nav-actions {
    display: none;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .section-head-split {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

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

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

  .system-highlights-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .dispatch-card {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .paper-item {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .paper-actions {
    justify-content: flex-start;
  }

  .terminal-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-links-triad {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .hero-hardware-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}

@media (max-width: 520px) {
  .footer-links-triad {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .dispatch-input-row {
    flex-direction: column;
  }
}

/* ==========================================================================
   12. MOBILE NAVIGATION DRAWER
   ========================================================================== */

.mobile-nav-menu {
  display: none;
}

@media (max-width: 768px) {
  .mobile-nav-menu {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    visibility: hidden;
    transition: visibility 0s linear 260ms;
  }

  .mobile-nav-menu.is-open {
    pointer-events: auto;
    visibility: visible;
    transition: visibility 0s linear 0s;
  }

  /* 1. Backdrop blur */
  .mobile-nav-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgba(18, 5, 5, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    cursor: pointer;
    opacity: 0;
    will-change: opacity;
    transition: opacity 260ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  .mobile-nav-menu.is-open .mobile-nav-backdrop {
    opacity: 1;
    transition: opacity 260ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  /* 2. Drawer panel slides out smoothly as a unified surface */
  .mobile-nav-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(88vw, 360px);
    background-color: var(--bg-surface);
    border-left: 1px solid var(--border-primary);
    box-shadow: var(--shadow-elevation);
    display: flex;
    flex-direction: column;
    padding: var(--space-6);
    transform: translate3d(100%, 0, 0);
    will-change: transform;
    transition: transform 260ms cubic-bezier(0.32, 0.72, 0, 1) 0ms;
    overflow-y: auto;
    isolation: isolate;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }

  .mobile-nav-menu.is-open .mobile-nav-panel {
    transform: translate3d(0, 0, 0);
    transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  .mobile-nav-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--border-primary);
  }

  .mobile-nav-top .brand-text {
    font-size: 1.4rem;
  }

  /* Premium Borderless Close Button */
  .mobile-nav-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: none;
    background: transparent;
    box-shadow: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 6px;
    transition: opacity var(--duration-fast) ease;
  }

  .mobile-nav-close:hover {
    opacity: 0.75;
  }

  .hamburger-box.is-close-icon .top-line {
    transform: translateY(5.125px) rotate(45deg);
  }

  .hamburger-box.is-close-icon .bot-line {
    transform: translateY(-5.125px) rotate(-45deg);
  }

  .mobile-nav-close:hover .hamburger-box.is-close-icon .top-line {
    transform: translateY(5.125px) rotate(135deg);
  }

  .mobile-nav-close:hover .hamburger-box.is-close-icon .bot-line {
    transform: translateY(-5.125px) rotate(45deg);
  }

  .mobile-nav-links {
    display: flex;
    flex-direction: column;
    padding: var(--space-6) 0;
    gap: var(--space-2);
  }

  .mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-lg);
    font-weight: 450;
    color: var(--text-secondary);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-subtle);
    transition: color var(--duration-fast) ease, font-weight var(--duration-fast) ease;
  }

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

  .mobile-nav-link.is-active {
    font-weight: 650;
    color: var(--text-primary);
  }

  .mobile-nav-icon {
    width: 1.15rem;
    height: 1.15rem;
    color: var(--color-accent);
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease;
    flex-shrink: 0;
  }

  .mobile-nav-link.is-active .mobile-nav-icon {
    opacity: 1;
    transform: translateX(0);
  }

  .mobile-nav-bottom {
    margin-top: auto;
    padding-top: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    border-top: 1px solid var(--border-subtle);
  }

  .btn-block {
    width: 100%;
    justify-content: center;
    padding: 0.8rem 1rem;
    font-size: var(--text-sm);
  }

  .mobile-theme-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-2);
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
  }
}

/* ==========================================================================
   12. ARCHITECTURAL MODAL (ZERO-TELEMETRY PRIVACY & TERMS)
   ========================================================================== */

.architectural-modal {
  padding: 0;
  border: none;
  background: transparent;
  max-width: min(680px, 92vw);
  width: 100%;
  margin: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 48px -8px rgba(0, 0, 0, 0.45);
}

.architectural-modal::backdrop {
  background-color: rgba(16, 21, 19, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-surface {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
}

.modal-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.modal-marker {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--color-accent);
}

.modal-badge {
  font-family: var(--font-family-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-1);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast) ease;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-height: 70vh;
  overflow-y: auto;
}

.modal-notice-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.modal-section-title {
  font-family: var(--font-family-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin: 0;
}

.modal-text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  margin: 0;
}

.modal-text code {
  font-family: var(--font-family-mono);
  font-size: 0.85em;
  padding: 0.1em 0.3em;
  background-color: var(--bg-code);
  border-radius: var(--radius-xs);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  border-top: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.modal-legal-tag {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.privacy-modal-trigger,
.footer-legal-link,
.footer-link-btn {
  background: transparent;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) ease;
}

.privacy-modal-trigger:hover,
.footer-legal-link:hover,
.footer-link-btn:hover {
  color: var(--color-accent);
}

.footer-legal-separator {
  margin: 0 var(--space-2);
  color: var(--text-muted);
}