/* ============================================
   LifeOS — Institutional Homepage v2
   
   Design upgrade:
   - Clear visual hierarchy (3 levels)
   - Memorable anchor (schema + manifesto)
   - Gravity point (one-liner)
   ============================================ */

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 300;
  line-height: 1.7;
  color: #1a1a1a;
  background-color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography Hierarchy */
h1, h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 0.85rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #999;
  margin-bottom: 1.5rem;
}

p {
  color: #333;
}

/* Labels - Level 3 typography */
.label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #aaa;
  margin-bottom: 1rem;
}

/* Sections */
section {
  padding: 6rem 0;
}

/* ============================================
   HERO — EXISTENCE
   ============================================ */
.hero {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem;
  background: #fff;
  position: relative;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.6;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.logo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 5rem;
  font-weight: 400;
  letter-spacing: -0.03em;
  color: #1a1a1a;
  margin-bottom: 1rem;
}

.tagline {
  font-size: 1.15rem;
  font-weight: 300;
  color: #666;
  max-width: 450px;
  line-height: 1.6;
}

.hero-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #ccc;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.hero-hint:hover {
  opacity: 1;
}

.hero-hint .sep {
  color: #ddd;
  font-size: 0.8rem;
}

/* ============================================
   MANIFESTO — GRAVITY POINT
   ============================================ */
.manifesto {
  padding: 5rem 0;
  background: #fafafa;
  border-top: 1px solid #f0f0f0;
  border-bottom: 1px solid #f0f0f0;
}

.gravity {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 400;
  font-style: italic;
  line-height: 1.4;
  text-align: center;
  color: #1a1a1a;
  max-width: 700px;
  margin: 0 auto;
  padding: 0;
  border: none;
}

.gravity .emphasis {
  font-style: normal;
  font-weight: 500;
  display: block;
  margin-top: 0.3em;
}

/* ============================================
   STATEMENT — PROBLEM / RESPONSE
   ============================================ */
.statement {
  background: #fff;
  padding: 7rem 0;
}

.statement-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.statement-problem,
.statement-response {
  padding: 2rem 0;
}

.statement-problem {
  border-right: 1px solid #eee;
  padding-right: 3rem;
}

.statement-response {
  padding-left: 1rem;
}

.statement-problem p,
.statement-response p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #444;
}

/* ============================================
   ARCHITECTURE — VISUAL ANCHOR
   ============================================ */
.architecture {
  background: #fff;
  padding: 6rem 0 7rem;
  text-align: center;
}

.architecture-visual {
  margin-bottom: 3rem;
}

.schema {
  width: 320px;
  height: 320px;
  margin: 0 auto;
}

.schema-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  fill: #999;
}

.schema-label.light {
  fill: #bbb;
}

.schema-label-core {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  fill: #333;
}

.schema-sublabel {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.1em;
  fill: #999;
}

.schema-hint {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  font-weight: 400;
  font-style: italic;
  fill: #bbb;
}

.schema-hint-core {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 400;
  font-style: italic;
  fill: #777;
}

.architecture-caption {
  max-width: 400px;
  margin: 0 auto;
}

.architecture-caption p {
  font-size: 1rem;
  color: #666;
  line-height: 1.7;
}

.architecture-caption strong {
  color: #1a1a1a;
  font-weight: 500;
}

/* ============================================
   DISTINCTION — IS / IS NOT
   ============================================ */
.distinction {
  background: #fafafa;
  padding: 6rem 0;
  border-top: 1px solid #f0f0f0;
}

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.column {
  padding: 2rem 0;
}

.column-is {
  border-right: 1px solid #e8e8e8;
  padding-right: 3rem;
}

.column-not {
  padding-left: 1rem;
}

.column ul {
  list-style: none;
}

.column li {
  padding: 0.9rem 0;
  font-size: 1rem;
  color: #444;
  border-bottom: 1px solid #eee;
}

.column-not li {
  color: #888;
}

.column li:last-child {
  border-bottom: none;
}

/* ============================================
   PRINCIPLES
   ============================================ */
.principles {
  background: #fff;
  text-align: center;
  padding: 7rem 0;
  border-top: 1px solid #f0f0f0;
}

.principles h2 {
  margin-bottom: 2.5rem;
}

.principles-list {
  list-style: none;
  max-width: 320px;
  margin: 0 auto;
}

.principles-list li {
  padding: 1rem 0;
  font-size: 1.05rem;
  color: #666;
  border-bottom: 1px solid #f5f5f5;
}

.principles-list li strong {
  color: #1a1a1a;
  font-weight: 500;
}

.principles-list li:last-child {
  border-bottom: none;
}

/* ============================================
   ROLE — POSITION
   ============================================ */
.role {
  background: #fafafa;
  padding: 7rem 0;
  border-top: 1px solid #f0f0f0;
}

.role-content {
  max-width: 550px;
  margin: 0 auto;
  text-align: center;
}

.role-lead {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 1.5rem;
}

.role-emphasis {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  font-weight: 500;
  color: #1a1a1a;
  margin-bottom: 2rem;
}

.role-detail {
  font-size: 1rem;
  color: #777;
  line-height: 1.9;
}

.role-landing {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #e8e8e8;
  font-size: 1.05rem;
  font-weight: 400;
  color: #555;
  font-style: italic;
}

/* ============================================
   FOOTER — SILENCE
   ============================================ */
.footer {
  padding: 5rem 0 3rem;
  background: #fff;
  border-top: 1px solid #eee;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-logo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  color: #1a1a1a;
}

.footer-tagline {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #bbb;
}

.footer-meta {
  text-align: right;
}

.founder {
  font-size: 0.8rem;
  color: #999;
  margin-bottom: 0.25rem;
}

.author {
  font-size: 0.85rem;
  color: #777;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.copyright {
  font-size: 0.8rem;
  color: #bbb;
}

/* ============================================
   MANIFESTO LINK
   ============================================ */
.manifesto-link {
  padding: 3rem 0;
  text-align: center;
  background: #fff;
}

.quiet-link {
  font-size: 0.85rem;
  font-weight: 400;
  color: #999;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.quiet-link:hover {
  color: #555;
}

/* ============================================
   FOOTER LINKS
   ============================================ */
.footer-links {
  margin: 1rem 0;
  font-size: 0.75rem;
}

.footer-links a {
  color: #aaa;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #666;
}

.footer-links .dot {
  margin: 0 0.5rem;
  color: #ddd;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  section {
    padding: 4rem 0;
  }
  
  .hero {
    min-height: 60vh;
    padding: 4rem 1.5rem;
  }
  
  .logo {
    font-size: 3.5rem;
  }
  
  .tagline {
    font-size: 1rem;
  }
  
  .gravity {
    font-size: 1.6rem;
    padding: 0 1rem;
  }
  
  .statement-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .statement-problem {
    border-right: none;
    border-bottom: 1px solid #eee;
    padding-right: 0;
    padding-bottom: 2rem;
  }
  
  .statement-response {
    padding-left: 0;
  }
  
  .schema {
    width: 260px;
    height: 260px;
  }
  
  .columns {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .column-is {
    border-right: none;
    border-bottom: 1px solid #eee;
    padding-right: 0;
    padding-bottom: 2rem;
  }
  
  .column-not {
    padding-left: 0;
  }
  
  .role-emphasis {
    font-size: 1.5rem;
  }
  
  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
  }
  
  .footer-meta {
    text-align: center;
  }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
  section {
    padding: 2rem 0;
    page-break-inside: avoid;
  }
  
  .hero {
    min-height: auto;
  }
}