/* ==========================================================================
   Monospace Landing Page Style Sheet
   Pure CSS, zero dependencies, accessible, mobile-first, dark theme default.
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Variables)
   Customize fonts, colors, and layout widths here.
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Dark Default (Warm Charcoal + Phosphor Amber) */
  --bg-canvas: #0e1116;
  --bg-surface: #151921;
  --bg-surface-elevated: #1c212c;
  --bg-subtle: #1f2533;
  --border-subtle: #2b3240;
  --border-strong: #3d4659;

  --text-primary: #e6edf3;
  --text-secondary: #9da7b3;
  --text-muted: #6a7382;

  --accent: #e5a83b; /* Phosphor amber */
  --accent-hover: #f5ba52;
  --accent-dim: rgba(229, 168, 59, 0.14);
  --accent-glow: rgba(229, 168, 59, 0.28);

  --badge-pending-bg: rgba(200, 150, 60, 0.16);
  --badge-pending-text: #e5a83b;
  --badge-active-bg: rgba(74, 222, 128, 0.16);
  --badge-active-text: #4ade80;

  --focus-ring: #e5a83b;

  /* Typography */
  --font-mono:
    ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --font-sans:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Dimensions & Spacing */
  --content-max-width: 1040px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Light Theme Support */
@media (prefers-color-scheme: light) {
  :root {
    --bg-canvas: #f6f8fa;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #f0f3f6;
    --bg-subtle: #eaeef2;
    --border-subtle: #d0d7de;
    --border-strong: #afb8c1;

    --text-primary: #1f2328;
    --text-secondary: #57606a;
    --text-muted: #8c959f;

    --accent: #b07205; /* Deeper amber for contrast against white */
    --accent-hover: #8f5c00;
    --accent-dim: rgba(176, 114, 5, 0.12);
    --accent-glow: rgba(176, 114, 5, 0.2);

    --badge-pending-bg: rgba(176, 114, 5, 0.12);
    --badge-pending-text: #965f00;
    --badge-active-bg: rgba(22, 163, 74, 0.14);
    --badge-active-text: #15803d;

    --focus-ring: #b07205;
  }
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

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

/* --------------------------------------------------------------------------
   Layout & Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.site-section {
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.site-section:last-of-type {
  border-bottom: none;
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 44rem;
  margin-bottom: 2.5rem;
}

/* --------------------------------------------------------------------------
   Site Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--bg-canvas);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
}

.brand-link:hover {
  color: var(--accent);
  text-decoration: none;
}

.brand-glyph {
  color: var(--accent);
  font-weight: bold;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
  }
}

.nav-links a {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

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

/* GitHub Badge */
.github-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background-color: #181717;
  color: #ffffff !important;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  text-decoration: none !important;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast);
  white-space: nowrap;
}

@media (max-width: 600px) {
  .github-badge-text {
    display: none;
  }
  .github-badge {
    padding: 0.4rem 0.5rem;
  }
}

.github-badge:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.github-badge svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding-top: 4rem;
  padding-bottom: 5rem;
  text-align: center;
}

.hero-content {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 3.5rem;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 7vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 4vw, 1.35rem);
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.cursor-blink {
  display: inline-block;
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-weight: 700;
}

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

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: var(--accent);
  color: #121214 !important;
  border-color: var(--accent);
  box-shadow: 0 4px 14px var(--accent-glow);
}

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

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary) !important;
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn.disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(0.5);
  box-shadow: none !important;
}

/* Terminal Showcase Container */
.terminal-window {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background-color: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
  display: flex;
  gap: 0.45rem;
}

.terminal-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.terminal-dots .dot-red {
  background-color: #ff5f56;
}
.terminal-dots .dot-yellow {
  background-color: #ffbd2e;
}
.terminal-dots .dot-green {
  background-color: #27c93f;
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 0.75rem;
  background-color: #0b0d11;
  display: flex;
  justify-content: center;
}

.terminal-body img {
  border-radius: var(--radius-sm);
  width: 100%;
  height: auto;
}

/* --------------------------------------------------------------------------
   What is it Section
   -------------------------------------------------------------------------- */
.prose-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 52rem;
}

.prose-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: border-color var(--transition-fast);
}

.prose-card:hover {
  border-color: var(--border-strong);
}

.prose-card h3 {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prose-card h3 .icon {
  color: var(--accent);
}

.prose-card p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.7;
}

.prose-card p + p {
  margin-top: 0.85rem;
}

.docs-callout {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   See it in action Section (GIFs alternating)
   -------------------------------------------------------------------------- */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.feature-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .feature-item {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }

  .feature-item.reverse .feature-media {
    order: 2;
  }

  .feature-item.reverse .feature-text {
    order: 1;
  }
}

.feature-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background-color: var(--accent-dim);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 0.75rem;
}

.feature-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.feature-media {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.feature-media img {
  border-radius: var(--radius-sm);
  width: 100%;
}

/* --------------------------------------------------------------------------
   Gallery Section
   -------------------------------------------------------------------------- */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gallery-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.gallery-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.gallery-thumb-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
  display: block;
  width: 100%;
  text-align: left;
}

.gallery-thumb-btn img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background-color: #0b0d11;
  border-bottom: 1px solid var(--border-subtle);
}

.gallery-overlay-hint {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background-color: rgba(14, 17, 22, 0.85);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-thumb-btn:hover .gallery-overlay-hint,
.gallery-thumb-btn:focus-visible .gallery-overlay-hint {
  opacity: 1;
}

.gallery-info {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.gallery-info h4 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.gallery-info p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Lightbox Modal
   -------------------------------------------------------------------------- */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: rgba(6, 8, 12, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-container {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.lightbox-caption {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

.lightbox-close:hover {
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   Download Section
   -------------------------------------------------------------------------- */
.download-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .download-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.download-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
  transition:
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

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

.download-card-featured {
  border-color: var(--accent-glow);
}

.download-card-top {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.download-platform-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.download-platform-name {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-pending {
  background-color: var(--badge-pending-bg);
  color: var(--badge-pending-text);
  border: 1px solid var(--badge-pending-text);
}

.badge-active {
  background-color: var(--badge-active-bg);
  color: var(--badge-active-text);
  border: 1px solid var(--badge-active-text);
}

.download-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.download-card-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.download-card-bottom {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.download-card-bottom .btn {
  width: 100%;
}

/* crates.io specific card */
.terminal-code-block {
  background-color: #0b0d11;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.terminal-code-block code {
  color: var(--accent);
  overflow-x: auto;
  white-space: nowrap;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem;
  font-size: 0.8rem;
  transition: color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   Footer Section
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding-top: 3.5rem;
  padding-bottom: 3rem;
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-brand {
  max-width: 24rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-top: 0.5rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Accessibility: Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .cursor-blink {
    animation: none;
    opacity: 1;
  }
}