/* ==========================================================================
   MONOLITH ARCHITECT - Minimalist Technical Design System
   ========================================================================== */

/* Warm dark is the default palette; a light variant applies under
   prefers-color-scheme: light. All text pairs are >= 4.5:1 (WCAG AA). */
:root {
  color-scheme: dark light;
  --bg: #141413;
  --surface: #141413;
  --surface-bright: #1c1c1b;
  --surface-dim: #101010;
  --surface-container-lowest: #0f0f0e;
  --surface-container-low: #1b1b1a;
  --surface-container: #212120;
  --surface-container-high: #292927;
  --surface-container-highest: #302f2c;
  --on-surface: #f0efec;
  --on-surface-variant: #c9c7c1;
  --primary: #f0efec;
  --on-primary: #141413;
  --secondary: #a9a69f;
  --on-secondary: #141413;
  --secondary-container: #2c2b29;
  --on-secondary-container: #c9c7c1;
  --outline: #8d8b85;
  --outline-variant: rgba(255, 255, 255, 0.09);
  --code-bg: #1b1b1a;
  --accent: #28b04d;
  --accent-hover: #34c35a;
  --on-accent: #0c0c0b;
  --accent-text: #3cc562;
  --header-bg: rgba(20, 20, 19, 0.82);
  --dot-color: rgba(240, 239, 236, 0.16);

  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Fluid type scale: 390px -> 1440px */
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-body: clamp(0.9375rem, 0.914rem + 0.095vw, 1rem);
  --text-h3: clamp(1.125rem, 0.98rem + 0.6vw, 1.5rem);
  --text-h2: clamp(1.625rem, 1.3rem + 1.33vw, 2.5rem);
  --text-h1: clamp(2.5rem, 1.77rem + 3vw, 4.5rem);

  --radius: 10px;
  --radius-sm: 6px;
  --container-max: 1200px;
  --margin-desktop: 64px;
  --margin-mobile: 20px;
  --gutter: 16px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f4f0;
    --surface: #f5f4f0;
    --surface-bright: #ffffff;
    --surface-dim: #e6e4de;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #ffffff;
    --surface-container: #ecebe6;
    --surface-container-high: #e4e2dc;
    --surface-container-highest: #dad8d1;
    --on-surface: #1a1a18;
    --on-surface-variant: #45433e;
    --primary: #1a1a18;
    --on-primary: #f5f4f0;
    --secondary: #5c5a54;
    --on-secondary: #ffffff;
    --secondary-container: #e4e2dc;
    --on-secondary-container: #45433e;
    --outline: #8d8b85;
    --outline-variant: rgba(0, 0, 0, 0.10);
    --code-bg: #ecebe6;
    --accent: #1d7a36;
    --accent-hover: #17662d;
    --on-accent: #ffffff;
    --accent-text: #16632b;
    --header-bg: rgba(245, 244, 240, 0.85);
    --dot-color: rgba(26, 26, 24, 0.16);
  }
}

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

html {
  background-color: var(--bg);
  color: var(--on-surface);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-size: var(--text-body);
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
  color: var(--on-surface);
}

a {
  color: inherit;
  text-underline-offset: 3px;
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border-radius: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

/* Inline SVG icon helper */
.icon {
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--margin-mobile);
  padding-right: var(--margin-mobile);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--margin-desktop);
    padding-right: var(--margin-desktop);
  }
}

.main-content {
  flex-grow: 1;
  width: 100%;
  padding-top: 4rem;
  padding-bottom: 6rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-nav-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background-color: var(--header-bg);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--outline-variant);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--primary);
}

.brand-cursor {
  display: inline-block;
  margin-left: 3px;
  color: var(--accent-text);
  font-weight: 400;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1;
  animation: terminal-blink 1s steps(1) infinite;
  user-select: none;
}

@keyframes terminal-blink {
  0%, 49% {
    opacity: 1;
  }
  50%, 100% {
    opacity: 0;
  }
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

.desktop-nav a {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: lowercase;
  color: var(--on-surface-variant);
  padding: 0.25rem 0;
  transition: color 0.15s ease;
}

.desktop-nav a:hover {
  color: var(--primary);
}

.desktop-nav a.active {
  color: var(--accent-text);
}

.nav-cta-btn {
  display: none;
  background-color: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0;
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  gap: 0.5rem;
  transition: background-color 0.15s ease;
}

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

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-nav-drawer {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--outline-variant);
  padding: 0.75rem var(--margin-mobile) 1.25rem;
  gap: 0;
}

.mobile-nav-drawer.open {
  display: flex;
}

.mobile-nav-drawer a {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 400;
  text-transform: lowercase;
  color: var(--on-surface-variant);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--outline-variant);
}

.mobile-nav-drawer a.active {
  color: var(--accent-text);
}

.mobile-nav-drawer a.mobile-nav-cta {
  margin-top: 1rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--on-accent);
  text-align: center;
  font-weight: 500;
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
  }
  .nav-cta-btn {
    display: inline-flex;
  }
  .mobile-menu-toggle {
    display: none;
  }
  .mobile-nav-drawer {
    display: none !important;
  }
}

/* ==========================================================================
   Typography & Shared UI Components
   ========================================================================== */
.font-mono { font-family: var(--font-mono); }
.font-sans { font-family: var(--font-sans); }

.headline-lg,
.headline-md,
.headline-sm,
.manifest-section-title,
.project-item-title,
.community-card-title,
.page-content h2,
.page-content h3 {
  color: var(--primary);
}

.headline-lg {
  font-size: var(--text-h1);
  line-height: 1.04;
  letter-spacing: -0.045em;
  font-weight: 600;
  text-wrap: balance;
}

.headline-md {
  font-size: var(--text-h2);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.headline-sm {
  font-size: var(--text-h3);
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 500;
}

.text-secondary {
  color: var(--secondary);
}

.text-muted {
  color: var(--on-surface-variant);
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--on-surface-variant);
  background-color: var(--surface-container-high);
  border: 1px solid transparent;
  border-radius: 0;
  padding: 0.25rem 0.7rem;
}

.badge-pill {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  background-color: var(--surface-container-high);
  border: 1px solid transparent;
  border-radius: 0;
  color: var(--on-surface-variant);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0;
  padding: 0.85rem 1.75rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--surface-container-high);
  color: var(--on-surface);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0;
  padding: 0.85rem 1.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn-outline:hover {
  background-color: var(--surface-container-highest);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  isolation: isolate;
  max-width: 52rem;
  margin-bottom: 5rem;
  padding: 2.5rem 0 3rem;
}

/* Subtle dot grid behind the hero, full-bleed and faded at the edges */
.hero-section::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -4rem;
  bottom: -2rem;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background-image: radial-gradient(var(--dot-color) 1px, transparent 1.4px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 30% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 80% at 30% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}

html, body {
  overflow-x: clip;
}

.hero-location {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-transform: none;
  letter-spacing: 0;
  color: var(--accent-text);
  margin-bottom: 1.25rem;
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: clamp(1rem, 0.93rem + 0.3vw, 1.1875rem);
  line-height: 1.6;
  color: var(--on-surface-variant);
  margin-bottom: 2.25rem;
  max-width: 44rem;
}

/* ==========================================================================
   Core Competencies (2x2 Grid)
   ========================================================================== */
.section-header-line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--outline-variant);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}

.competencies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
  margin-bottom: 5rem;
}

@media (min-width: 768px) {
  .competencies-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.competency-card {
  padding: 1.75rem;
  border-radius: var(--radius);
  background-color: var(--surface-container);
  border: 1px solid var(--outline-variant);
  transition: background-color 0.2s ease;
}

.competency-card:hover {
  background-color: var(--surface-container-high);
}

.competency-icon-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.competency-icon {
  color: var(--accent-text);
  font-size: 24px;
}

.competency-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* ==========================================================================
   Project Grid & Cards
   ========================================================================== */
.bento-grid,
.projects-list-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .projects-list-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.bento-card,
.project-item-card {
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background-color: var(--surface-container);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

@media (min-width: 768px) {
  .bento-card,
  .project-item-card {
    padding: 2.25rem;
  }
}

.bento-card:hover,
.project-item-card:hover {
  border-color: var(--outline-variant);
  background-color: var(--surface-container-high);
}

.bento-card-body {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.bento-card-header,
.project-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.project-item-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.project-item-title {
  font-size: var(--text-h3);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.project-item-title a:hover {
  color: var(--accent-text);
}

.bento-card-type {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--secondary);
}

.bento-card-desc,
.project-item-desc {
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.bento-card-footer,
.project-item-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.bento-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.bento-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: lowercase;
  font-weight: 500;
  color: var(--accent-text);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  width: fit-content;
}

.bento-link:hover {
  opacity: 0.7;
}

/* ==========================================================================
   Project Deep Dive / System Manifest
   ========================================================================== */
.deep-dive-header {
  max-width: 52rem;
  margin-bottom: 3.5rem;
}

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

.doc-id-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background-color: var(--surface-container-high);
  border: 1px solid transparent;
  border-radius: 0;
  padding: 0.25rem 0.7rem;
  color: var(--on-surface-variant);
}

.doc-date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--secondary);
}

.manifest-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  border-top: 1px solid var(--outline-variant);
  padding-top: 2.5rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .manifest-section {
    grid-template-columns: 4fr 8fr;
    gap: 2rem;
  }
}

.manifest-section-title {
  font-size: var(--text-h3);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--primary);
}

.manifest-section-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--on-surface-variant);
}

.manifest-diagram-box {
  width: 100%;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background-color: var(--surface-container-low);
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 260px;
}

.manifest-diagram-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--primary);
  color: var(--on-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.7rem;
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.results-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.results-item {
  background-clip: padding-box;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background-color: var(--surface-container);
  transition: background-color 0.2s ease;
}

.results-item:hover {
  background-color: var(--surface-container-high);
}

.results-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-text);
  margin-top: 0.125rem;
}

/* ==========================================================================
   About & Experience Timeline
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 4fr 8fr;
  }
}

.about-bio-text {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--on-surface-variant);
  max-width: 44rem;
}

.about-bio-text p {
  margin-bottom: 1.25rem;
}

.about-bio-text p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Experience, Community & Education Cards
   ========================================================================== */
.experience-card,
.education-card {
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background-color: var(--surface-container);
  padding: 2rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

@media (min-width: 768px) {
  .experience-card,
  .education-card {
    padding: 2.5rem;
  }
}

.experience-card:hover,
.education-card:hover {
  border-color: var(--outline-variant);
  background-color: var(--surface-container-high);
}

.experience-card-header,
.education-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.experience-meta-tags {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.experience-program-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--secondary);
  margin-top: 0.35rem;
}

.experience-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.experience-points li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--on-surface-variant);
}

.point-bullet {
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

/* Community Grid */
.community-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
}

@media (min-width: 768px) {
  .community-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.community-card {
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background-color: var(--surface-container);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.community-card:hover {
  border-color: var(--outline-variant);
  background-color: var(--surface-container-high);
}

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

.community-card-title {
  font-size: 1.1875rem;
  margin-top: 0.5rem;
  margin-bottom: 0.2rem;
  color: var(--primary);
  line-height: 1.3;
}

.community-card-role {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
}

.community-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--secondary);
  margin-top: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Thesis Box */
.thesis-highlight-box {
  background-color: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 1.75rem;
}

.thesis-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  background-color: var(--accent);
  color: var(--on-accent);
  padding: 0.2rem 0.6rem;
  border-radius: 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Contact Card & Form */
.contact-container {
  background-color: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .contact-container {
    padding: 3rem;
  }
}

.contact-intro {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-intro .icon {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 42rem;
  margin: 0 auto;
  border-top: 1px solid var(--outline-variant);
  padding-top: 2rem;
}

@media (min-width: 640px) {
  .contact-form {
    grid-template-columns: 1fr 1fr;
  }
  .form-col-span-2 {
    grid-column: span 2;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--secondary);
}

.form-input, .form-textarea {
  background-color: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--on-surface);
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ==========================================================================
   General Posts / Content Prose
   ========================================================================== */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--outline-variant);
}

.post-link {
  color: var(--primary);
  font-weight: 500;
  font-size: 1.0625rem;
}

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

.post-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--secondary);
  white-space: nowrap;
}

.page-article {
  max-width: 50rem;
}

.page-article .page-title {
  margin-bottom: 0.75rem;
}

.page-article .post-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--secondary);
  margin-bottom: 2.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--outline-variant);
}

.page-content {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--on-surface-variant);
}

.page-content p {
  margin-bottom: 1.5rem;
}

.page-content h2 {
  font-size: var(--text-h2);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--primary);
  margin: 2.5rem 0 1rem;
}

.page-content h3 {
  font-size: var(--text-h3);
  font-weight: 500;
  color: var(--primary);
  margin: 2rem 0 0.75rem;
}

.page-content ul, .page-content ol {
  margin: 1.25rem 0 1.5rem 1.5rem;
}

.page-content li {
  margin-bottom: 0.5rem;
}

.page-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--code-bg);
  padding: 0.15em 0.4em;
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
}

.page-content pre {
  background-color: var(--code-bg);
  border: 1px solid var(--outline-variant);
  padding: 1.25rem;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  overflow-x: auto;
}

.page-content pre code {
  background: none;
  border: none;
  padding: 0;
}

.page-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.25rem;
  margin: 1.75rem 0;
  font-style: italic;
  color: var(--secondary);
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin-top: 2.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--surface);
  border-top: 1px solid var(--outline-variant);
  padding: 2.5rem 0;
  margin-top: auto;
}

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

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
  }
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--primary);
}

.footer-copy {
  font-size: 0.75rem;
  text-align: center;
  color: var(--secondary);
  font-family: var(--font-mono);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  row-gap: 0.5rem;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  text-transform: lowercase;
  text-decoration: none;
  transition: color 0.15s ease;
}

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

/* Back to Top Floating Button */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--surface-container-high);
  color: var(--primary);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
              background-color 0.15s ease, 
              border-color 0.15s ease, 
              color 0.15s ease;
  box-shadow: none;
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  background-color: var(--primary);
  color: var(--on-primary);
  border-color: var(--primary);
}

.back-to-top-btn .arrow {
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1;
}

@media (max-width: 640px) {
  .back-to-top-btn {
    bottom: 1.25rem;
    right: 1.25rem;
    padding: 0.4rem 0.6rem;
  }
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--surface-container-low);
}
::-webkit-scrollbar-thumb {
  background: var(--outline-variant);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--outline);
}



.page-content a {
  color: var(--accent-text);
  text-decoration: underline;
}

.page-content hr {
  border: 0;
  border-top: 1px solid var(--outline-variant);
  margin: 3rem 0;
}