/* ============================================
   OpenProse Landing Page
   Design system from prose.md
   ============================================ */

:root {
  --paper-cream: #FAF7F2;
  --paper-warm: #F5F0E6;
  --paper-aged: #EDE6D6;
  --ink-dark: #1C1917;
  --ink-medium: #44403C;
  --ink-light: #78716C;
  --ink-faded: #A8A29E;
  --semantic-gold: #D97706;
  --semantic-gold-bg: rgba(217, 119, 6, 0.12);
  --syntax-keyword: #16a34a;
  --font-prose: 'Literata', 'Georgia', serif;
  --font-code: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper-cream);
  color: var(--ink-dark);
  font-family: var(--font-prose);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

main {
  position: relative;
  width: 100%;
  max-width: 520px;
  background: var(--paper-cream);
  border: 1px solid var(--paper-aged);
  border-radius: 20px;
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.08),
    0 16px 64px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Corner flourishes */
.flourish {
  position: absolute;
  width: 24px;
  height: 24px;
  opacity: 0.1;
  pointer-events: none;
}

.flourish.top-left {
  top: 14px;
  left: 14px;
  border-top: 2px solid var(--ink-medium);
  border-left: 2px solid var(--ink-medium);
}

.flourish.top-right {
  top: 14px;
  right: 14px;
  border-top: 2px solid var(--ink-medium);
  border-right: 2px solid var(--ink-medium);
}

.flourish.bottom-left {
  bottom: 14px;
  left: 14px;
  border-bottom: 2px solid var(--ink-medium);
  border-left: 2px solid var(--ink-medium);
}

.flourish.bottom-right {
  bottom: 14px;
  right: 14px;
  border-bottom: 2px solid var(--ink-medium);
  border-right: 2px solid var(--ink-medium);
}

/* Hero / Intro */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.logo {
  font-family: var(--font-prose);
  font-size: 32px;
  font-weight: 400;
  color: var(--ink-dark);
  margin-bottom: 12px;
}

.logo-open {
  font-weight: 400;
  color: var(--ink-light);
}

.tagline {
  font-family: var(--font-code);
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-faded);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  max-width: 380px;
  margin: 0 0 24px;
  line-height: 1.6;
}

.statement {
  font-family: var(--font-prose);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-medium);
  max-width: 360px;
  margin: 0 0 28px;
}

.features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-prose);
  font-size: 14px;
  color: var(--ink-dark);
}

.feature-icon {
  width: 18px;
  height: 18px;
  color: var(--syntax-keyword);
  flex-shrink: 0;
}

.feature code {
  font-family: var(--font-code);
  background: var(--paper-warm);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* Divider */
.divider {
  width: 60px;
  border: none;
  border-top: 1px solid var(--paper-aged);
  margin: 32px 0;
}

/* Install Section */
.install {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.section-title {
  font-family: var(--font-prose);
  font-size: 24px;
  font-weight: 500;
  color: var(--ink-dark);
  margin: 0 0 10px;
}

.section-subtitle {
  font-family: var(--font-prose);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-medium);
  max-width: 340px;
  margin: 0 0 20px;
}

.section-subtitle code {
  font-family: var(--font-code);
  background: var(--paper-warm);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

.command-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  background: var(--paper-warm);
  border: 1px solid var(--paper-aged);
  border-radius: 8px;
  width: 100%;
  margin-bottom: 14px;
}

.command-block code {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ink-dark);
  word-break: break-all;
  flex: 1;
  text-align: left;
}

.copy-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--ink-light);
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.copy-btn:hover {
  background: var(--paper-cream);
  color: var(--ink-dark);
}

.copy-btn.copied {
  color: var(--syntax-keyword);
}

.hint {
  font-family: var(--font-prose);
  font-size: 13px;
  color: var(--ink-medium);
  text-align: center;
}

.hint code {
  font-family: var(--font-code);
  font-size: 12px;
  background: var(--paper-warm);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Leaderboard Section */
.leaderboard-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.leaderboard {
  width: 100%;
  border: 1px solid var(--paper-aged);
  border-radius: 10px;
  overflow: hidden;
}

.leaderboard-header {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  background: var(--paper-warm);
  border-bottom: 1px solid var(--paper-aged);
  font-family: var(--font-code);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.leaderboard-row {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--paper-aged);
  transition: background 0.1s ease;
}

.leaderboard-row:last-child {
  border-bottom: none;
}

.leaderboard-row:hover {
  background: var(--paper-warm);
}

.col-rank {
  width: 32px;
  flex-shrink: 0;
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ink-light);
  text-align: left;
}

.rank-num {
  color: var(--ink-medium);
  font-weight: 500;
}

.col-system {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  text-align: left;
}

.system-harness {
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-dark);
}

.system-sep {
  color: var(--ink-light);
  font-size: 12px;
}

.system-model {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ink-medium);
}

.col-status {
  width: 100px;
  flex-shrink: 0;
  text-align: right;
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-family: var(--font-code);
  font-size: 11px;
  font-weight: 500;
}

.status-badge.approaching {
  background: var(--semantic-gold-bg);
  color: var(--semantic-gold);
}

.status-badge.evaluating {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
}

.status-badge.not-complete {
  background: var(--paper-warm);
  color: var(--ink-light);
}

/* Footer */
.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-code);
  font-size: 13px;
  color: var(--ink-medium);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--ink-dark);
}

.footer-icon {
  width: 16px;
  height: 16px;
}

/* Mobile */
@media (max-width: 600px) {
  body {
    padding: 16px;
    align-items: flex-start;
  }

  main {
    padding: 40px 24px;
    border-radius: 16px;
  }

  .logo {
    font-size: 28px;
  }

  .tagline {
    font-size: 10px;
  }

  .statement {
    font-size: 15px;
  }

  .section-title {
    font-size: 20px;
  }

  .col-status {
    width: 90px;
  }

  .status-badge {
    font-size: 10px;
    padding: 3px 8px;
  }

  .footer {
    gap: 16px;
  }
}

/* Fade-in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

main {
  animation: fadeIn 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}