/* Obscure Bit - Editorial Landing Page */

/* ===== Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Instrument+Serif:ital@0;1&family=Inter:wght@300;400;500;600&display=swap');

/* ===== CSS Variables ===== */
:root {
  --ob-font-display: 'Instrument Serif', Georgia, serif;
  --ob-font-mono: 'Space Mono', monospace;
  --ob-font-body: 'Inter', system-ui, sans-serif;
  
  --ob-transition: cubic-bezier(0.16, 1, 0.3, 1);
  --ob-transition-fast: cubic-bezier(0.34, 1.56, 0.64, 1);
  
  --ob-accent: #c9ff00;
  --ob-accent-dim: rgba(201, 255, 0, 0.15);
  --ob-purple: #a855f7;
  --ob-purple-dim: rgba(168, 85, 247, 0.1);
}

/* Dark mode (default for slate scheme) */
[data-md-color-scheme="slate"] {
  --ob-bg-primary: #0a0a0b;
  --ob-bg-secondary: #141416;
  --ob-bg-tertiary: #1c1c1f;
  --ob-border: #2a2a2f;
  --ob-text-muted: #8a8a8f;
  --ob-text-primary: #f5f5f0;
  --ob-grid-color: rgba(201, 255, 0, 0.03);
}

/* Light mode */
[data-md-color-scheme="default"] {
  --ob-bg-primary: #fafafa;
  --ob-bg-secondary: #f0f0f0;
  --ob-bg-tertiary: #e8e8e8;
  --ob-border: #d0d0d0;
  --ob-text-muted: #666666;
  --ob-text-primary: #1a1a1a;
  --ob-grid-color: rgba(168, 85, 247, 0.05);
  --ob-accent: #7c3aed;
  --ob-purple: #a855f7;
}

/* ===== Hero Section ===== */
.ob-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--ob-bg-primary);
  overflow: hidden;
  padding: 6rem 2rem 4rem;
}

/* Noise texture overlay */
.ob-hero__noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
}

/* Grid overlay */
.ob-hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--ob-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--ob-grid-color) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.ob-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
}

/* Eyebrow - date/edition */
.ob-hero__eyebrow {
  font-family: var(--ob-font-mono);
  font-size: 0.75rem;
  color: var(--ob-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.ob-hero__divider {
  color: var(--ob-accent);
}

/* Main title - stacked, dramatic */
.ob-hero__title {
  margin: 0 0 2.5rem;
  line-height: 0.85;
}

.ob-hero__title-line {
  display: block;
  font-family: var(--ob-font-display);
  color: var(--ob-text-primary);
}

.ob-hero__title-line--1 {
  font-size: clamp(4rem, 15vw, 12rem);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.03em;
  transform: translateX(-5%);
}

.ob-hero__title-line--2 {
  font-size: clamp(5rem, 20vw, 16rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 2px var(--ob-text-primary);
  transform: translateX(5%);
}

/* Manifesto tagline */
.ob-hero__manifesto {
  font-family: var(--ob-font-body);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 300;
  color: var(--ob-text-muted);
  line-height: 1.8;
  margin: 0 0 4rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.ob-hero__manifesto em {
  color: var(--ob-accent);
  font-style: normal;
  font-weight: 500;
}

/* Stats row */
.ob-hero__stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--ob-border);
}

.ob-hero__stat {
  text-align: center;
}

.ob-hero__stat-number {
  display: block;
  font-family: var(--ob-font-display);
  font-size: 2.5rem;
  color: var(--ob-text-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.ob-hero__stat-label {
  font-family: var(--ob-font-mono);
  font-size: 0.65rem;
  color: var(--ob-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* Scroll hint */
.ob-hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.ob-hero__scroll-hint span {
  font-family: var(--ob-font-mono);
  font-size: 0.6rem;
  color: var(--ob-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3em;
  writing-mode: vertical-rl;
}

.ob-hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--ob-accent), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.7); }
}

/* ===== Today's Story Section ===== */
.ob-today {
  background: var(--ob-bg-secondary);
  padding: 6rem 2rem;
  position: relative;
}

.ob-today__container {
  max-width: 900px;
  margin: 0 auto;
}

.ob-today__header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.ob-today__label {
  font-family: var(--ob-font-mono);
  font-size: 0.7rem;
  color: var(--ob-accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  white-space: nowrap;
}

.ob-today__line {
  flex: 1;
  height: 1px;
  background: var(--ob-border);
}

/* Story card */
.ob-today__story {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 3rem;
  background: var(--ob-bg-tertiary);
  border: 1px solid var(--ob-border);
  border-radius: 2px;
  position: relative;
  transition: all 0.5s var(--ob-transition);
  overflow: hidden;
}

.ob-today__story::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--ob-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--ob-transition);
}

.ob-today__story:hover {
  border-color: var(--ob-accent);
  transform: translateX(8px);
}

.ob-today__story:hover::before {
  transform: scaleY(1);
}

.ob-today__story-meta {
  display: flex;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.ob-today__category,
.ob-today__genre,
.ob-today__reading-time {
  font-family: var(--ob-font-mono);
  font-size: 0.65rem;
  color: var(--ob-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.ob-today__genre {
  color: var(--ob-accent);
  border: 1px solid var(--ob-accent);
  border-radius: 2px;
  padding: 0.15em 0.5em;
  opacity: 0.8;
}

.ob-today__story-title {
  font-family: var(--ob-font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 400;
  color: var(--ob-text-primary);
  margin: 0 0 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.ob-today__story-excerpt {
  font-family: var(--ob-font-body);
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--ob-text-muted);
  line-height: 1.8;
  margin: 0 0 2rem;
  max-width: 700px;
}

.ob-today__story-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--ob-font-mono);
  font-size: 0.65rem;
  color: var(--ob-purple);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: gap 0.3s var(--ob-transition);
}

.ob-today__story:hover .ob-today__story-cta {
  gap: 1.25rem;
}

.ob-today__story-cta svg {
  width: 18px;
  height: 18px;
}

/* ===== Links Section ===== */
.ob-links {
  background: var(--ob-bg-primary);
  padding: 6rem 2rem;
}

.ob-links__container {
  max-width: 1100px;
  margin: 0 auto;
}

.ob-links__header {
  margin-bottom: 4rem;
}

.ob-links__title {
  font-family: var(--ob-font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  color: var(--ob-text-primary);
  margin: 0 0 0.75rem;
  line-height: 1;
}

.ob-links__title-small {
  display: block;
  font-family: var(--ob-font-mono);
  font-size: 0.7rem;
  color: var(--ob-purple);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.ob-links__subtitle {
  font-family: var(--ob-font-body);
  font-size: 1rem;
  font-weight: 300;
  color: var(--ob-text-muted);
  margin: 0;
}

/* Links grid */
.ob-links__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--ob-border);
  border: 1px solid var(--ob-border);
}

.ob-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 1.5rem;
  padding: 2rem;
  background: var(--ob-bg-secondary);
  text-decoration: none;
  color: inherit;
  transition: all 0.4s var(--ob-transition);
}

.ob-link:hover {
  background: var(--ob-bg-tertiary);
}

.ob-link--featured {
  grid-column: span 2;
  padding: 2.5rem;
}

.ob-link__number {
  font-family: var(--ob-font-mono);
  font-size: 0.7rem;
  color: var(--ob-purple);
  padding-top: 0.25rem;
}

.ob-link__content {
  min-width: 0;
}

.ob-link__title {
  font-family: var(--ob-font-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--ob-text-primary);
  margin: 0 0 0.5rem;
  line-height: 1.3;
  transition: color 0.3s ease;
}

.ob-link:hover .ob-link__title {
  color: var(--ob-accent);
}

.ob-link__desc {
  font-family: var(--ob-font-body);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--ob-text-muted);
  line-height: 1.6;
  margin: 0;
}

.ob-link__arrow {
  font-size: 1.25rem;
  color: var(--ob-border);
  transition: all 0.3s var(--ob-transition);
  padding-top: 0.25rem;
}

.ob-link:hover .ob-link__arrow {
  color: var(--ob-accent);
  transform: translate(4px, -4px);
}

/* More link */
.ob-link--more {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  min-height: 120px;
}

.ob-link__more-text {
  font-family: var(--ob-font-mono);
  font-size: 0.75rem;
  color: var(--ob-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ob-link__more-count {
  font-family: var(--ob-font-body);
  font-size: 0.8rem;
  color: var(--ob-text-muted);
}

.ob-link--more:hover .ob-link__more-text {
  color: var(--ob-accent);
}

/* ===== Manifesto Section ===== */
.ob-manifesto {
  background: var(--ob-bg-secondary);
  padding: 8rem 2rem;
  position: relative;
  overflow: hidden;
}

.ob-manifesto::before {
  content: '"';
  position: absolute;
  top: 2rem;
  left: 5%;
  font-family: var(--ob-font-display);
  font-size: 30rem;
  color: var(--ob-bg-tertiary);
  line-height: 1;
  pointer-events: none;
}

.ob-manifesto__container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.ob-manifesto__content {
  text-align: center;
}

.ob-manifesto__label {
  font-family: var(--ob-font-mono);
  font-size: 0.65rem;
  color: var(--ob-purple);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  display: block;
  margin-bottom: 2rem;
}

.ob-manifesto__quote {
  font-family: var(--ob-font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 400;
  font-style: italic;
  color: var(--ob-text-primary);
  line-height: 1.5;
  margin: 0 0 3rem;
  padding: 0;
  border: none;
}

.ob-manifesto__principles {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem 3rem;
}

.ob-manifesto__principle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--ob-font-mono);
  font-size: 0.7rem;
  color: var(--ob-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ob-manifesto__principle-icon {
  color: var(--ob-accent);
  font-size: 0.6rem;
}

/* ===== Footer CTA ===== */
.ob-footer-cta {
  background: var(--ob-bg-primary);
  padding: 4rem 2rem;
  border-top: 1px solid var(--ob-border);
}

.ob-footer-cta__container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ob-footer-cta__left {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ob-footer-cta__text {
  font-family: var(--ob-font-display);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--ob-text-primary);
  margin: 0;
}

.ob-footer-cta__link {
  font-family: var(--ob-font-mono);
  font-size: 0.75rem;
  color: var(--ob-accent);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: opacity 0.3s ease;
}

.ob-footer-cta__link:hover {
  opacity: 0.7;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .ob-hero {
    padding: 5rem 1.5rem 3rem;
  }
  
  .ob-hero__stats {
    gap: 2rem;
    flex-wrap: wrap;
  }
  
  .ob-hero__stat-number {
    font-size: 2rem;
  }
  
  .ob-hero__title-line--2 {
    color: var(--ob-text-primary);
    -webkit-text-stroke: 0;
  }
  
  .ob-today,
  .ob-links,
  .ob-manifesto {
    padding: 4rem 1.5rem;
  }
  
  .ob-today__story {
    padding: 2rem;
  }
  
  .ob-links__grid {
    grid-template-columns: 1fr;
  }
  
  .ob-link--featured {
    grid-column: span 1;
  }
  
  .ob-footer-cta__container {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
    align-items: center;
  }
  
  .ob-footer-cta__left {
    align-items: center;
  }
  
  .ob-manifesto::before {
    font-size: 15rem;
    top: 0;
    left: 0;
  }
}

/* ===== Animations ===== */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slide-up {
  from { 
    opacity: 0;
    transform: translateY(30px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

.ob-hero__eyebrow {
  animation: fade-in 1s ease-out 0.2s both;
}

.ob-hero__title-line--1 {
  animation: slide-up 0.8s var(--ob-transition) 0.4s both;
}

.ob-hero__title-line--2 {
  animation: slide-up 0.8s var(--ob-transition) 0.6s both;
}

.ob-hero__manifesto {
  animation: fade-in 1s ease-out 0.8s both;
}

.ob-hero__stats {
  animation: fade-in 1s ease-out 1s both;
}

/* ===== Hide MkDocs elements on home ===== */
.md-main__inner {
  margin-top: 0;
}

/* Transparent header on landing page */
.md-header {
  background: transparent;
  box-shadow: none;
  position: absolute;
  width: 100%;
}

/* Hide logo on landing page */
.md-header__button.md-logo {
  display: none;
}

/* Also hide the site title in header */
.md-header__title {
  display: none;
}

/* Selection color */
::selection {
  background: var(--ob-accent);
  color: var(--ob-bg-primary);
}