/* DontGuess — Token-Work Exchange */

:root {
  --bg: #0a0a0f;
  --bg-surface: #12121a;
  --bg-elevated: #1a1a26;
  --bg-hover: #222233;
  --text: #e0e0e8;
  --text-muted: #8888a0;
  --text-dim: #555570;
  --accent: #6c8cff;
  --accent-bright: #8eaaff;
  --accent-dim: #3a5cc0;
  --green: #4ade80;
  --green-dim: #166534;
  --orange: #fb923c;
  --orange-dim: #9a3412;
  --red: #f87171;
  --red-dim: #991b1b;
  --cyan: #22d3ee;
  --purple: #a78bfa;
  --border: #2a2a3a;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --max-width: 72rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
}

/* Typography */

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--accent-bright);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--cyan);
}

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

code {
  background: var(--bg-elevated);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

pre {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--spacing-md);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.6;
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* Layout */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-xl) 0;
}

section + section {
  border-top: 1px solid var(--border);
}

/* Nav */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-sm) 0;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav .logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

nav .logo span {
  color: var(--accent);
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
}

nav a {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--text);
}

/* Hero */

.hero {
  padding-top: calc(var(--spacing-xl) + 4rem);
  padding-bottom: var(--spacing-xl);
  text-align: center;
}

.hero h1 {
  margin-bottom: var(--spacing-sm);
}

.hero h1 .highlight {
  color: var(--accent-bright);
}

.hero .tagline {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-muted);
  max-width: 42rem;
  margin: 0 auto var(--spacing-lg);
  line-height: 1.6;
}

.hero .cta-group {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-bright);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--text-dim);
}

/* Section headers */

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--spacing-xs);
}

.section-desc {
  color: var(--text-muted);
  max-width: 36rem;
  font-size: 1.05rem;
  margin-bottom: var(--spacing-lg);
}

/* What it is */

.publisher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: var(--spacing-md);
}

.publisher-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-md);
  transition: border-color 0.2s;
}

.publisher-card:hover {
  border-color: var(--accent-dim);
}

.publisher-card .card-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: var(--spacing-xs);
}

.publisher-card h3 {
  font-size: 1.1rem;
}

.publisher-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Flow section */

.flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  position: relative;
  max-width: 52rem;
  margin: 0 auto;
}

.flow-step {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 2rem;
  top: calc(var(--spacing-md) + 3rem);
  bottom: 0;
  width: 1px;
  background: var(--border);
  transform: translateX(-50%);
}

.flow-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.flow-icon.put { background: var(--green-dim); color: var(--green); }
.flow-icon.buy { background: var(--accent-dim); color: var(--accent-bright); }
.flow-icon.match { background: #2d1b69; color: var(--purple); }
.flow-icon.preview { background: #164e63; color: var(--cyan); }
.flow-icon.settle { background: var(--orange-dim); color: var(--orange); }

.flow-content h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.flow-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.flow-content code {
  font-size: 0.8rem;
}

/* Economics */

.econ-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: var(--spacing-md);
}

.econ-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-md);
}

.econ-item .label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.25rem;
}

.econ-item .value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.econ-item .value.green { color: var(--green); }
.econ-item .value.orange { color: var(--orange); }
.econ-item .value.red { color: var(--red); }
.econ-item .value.cyan { color: var(--cyan); }
.econ-item .value.purple { color: var(--purple); }
.econ-item .value.accent { color: var(--accent-bright); }

.econ-item .desc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Three loops */

.loops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: var(--spacing-md);
}

.loop-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-md);
  border-top: 3px solid transparent;
}

.loop-card.fast { border-top-color: var(--green); }
.loop-card.medium { border-top-color: var(--orange); }
.loop-card.slow { border-top-color: var(--purple); }

.loop-card .loop-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--spacing-sm);
}

.loop-card .loop-name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
}

.loop-card.fast .loop-name { color: var(--green); }
.loop-card.medium .loop-name { color: var(--orange); }
.loop-card.slow .loop-name { color: var(--purple); }

.loop-card .loop-cadence {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.loop-card ul {
  list-style: none;
  padding: 0;
}

.loop-card li {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.3rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.loop-card li::before {
  content: '\203A';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

/* Compression */

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.tier-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-md);
  text-align: center;
}

.tier-card .tier-name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.tier-card.hot .tier-name { color: var(--red); }
.tier-card.warm .tier-name { color: var(--orange); }
.tier-card.cold .tier-name { color: var(--cyan); }

.tier-card .tier-premium {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  margin: var(--spacing-sm) 0;
}

.tier-card.hot .tier-premium { color: var(--red); }
.tier-card.warm .tier-premium { color: var(--orange); }
.tier-card.cold .tier-premium { color: var(--cyan); }

.tier-card .tier-bounty {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: var(--spacing-xs);
}

.tier-card .tier-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Scale tiers */

.scale-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: var(--spacing-md);
}

.scale-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-md);
  position: relative;
  transition: border-color 0.2s;
}

.scale-card:hover {
  border-color: var(--accent-dim);
}

.scale-indicator {
  height: 3px;
  border-radius: 2px;
  margin-bottom: var(--spacing-sm);
}

.scale-indicator.tier-1 {
  width: 25%;
  background: var(--green);
}

.scale-indicator.tier-2 {
  width: 50%;
  background: var(--accent);
}

.scale-indicator.tier-3 {
  width: 75%;
  background: var(--orange);
}

.scale-indicator.tier-4 {
  width: 100%;
  background: linear-gradient(90deg, var(--green), var(--accent), var(--orange), var(--purple));
}

.scale-tier {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.scale-tagline {
  font-size: 0.9rem;
  color: var(--accent-bright);
  margin-bottom: var(--spacing-sm);
}

.scale-card ul {
  list-style: none;
  padding: 0;
}

.scale-card li {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.3rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.scale-card li::before {
  content: '\203A';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

.scale-card.roadmap {
  opacity: 0.6;
  border-style: dashed;
}

.badge-roadmap {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  margin-left: 0.5rem;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.scale-footer {
  margin-top: var(--spacing-lg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

/* Getting started */

.steps {
  max-width: 52rem;
  margin: 0 auto;
}

.step {
  margin-bottom: var(--spacing-lg);
}

.step .step-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.step .step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--bg-elevated);
  border: 1px solid var(--accent-dim);
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step h3 {
  margin-bottom: 0;
}

/* Agent instructions block */

.agent-instructions {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-top: var(--spacing-md);
}

.instructions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.file-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.copy-btn {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: 'Inter', sans-serif;
  transition: background 0.2s, color 0.2s;
}

.copy-btn:hover {
  background: var(--accent-dim);
  color: var(--text);
}

.agent-instructions pre {
  margin: 0;
  border: none;
  border-radius: 0;
}

.agent-instructions pre code {
  padding: 1.5rem;
}

/* Footer */

footer {
  border-top: 1px solid var(--border);
  padding: var(--spacing-lg) 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.875rem;
}

footer a {
  color: var(--text-muted);
}

footer p {
  margin-bottom: var(--spacing-xs);
}

/* Responsive */

@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  nav ul {
    display: none;
  }

  .flow-step {
    grid-template-columns: 2.5rem 1fr;
    gap: var(--spacing-sm);
  }

  .flow-icon {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.65rem;
  }

  .flow-step:not(:last-child)::after {
    left: 1.25rem;
  }

  pre {
    padding: var(--spacing-sm);
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .scale-grid,
  .econ-grid,
  .loops-grid,
  .tier-grid {
    grid-template-columns: 1fr;
  }

  .hero .cta-group {
    flex-direction: column;
    align-items: center;
  }
}

/* =========================================================
   Terminal demo accordion (terminal.js)
   ========================================================= */
.demos-section {
  padding: var(--spacing-xl) 0;
  background: var(--bg-secondary);
}

.term-demos {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.term-accordion {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-primary);
}

.term-accordion-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}
.term-accordion-header:hover {
  background: var(--bg-secondary);
}

.term-accordion-arrow {
  font-size: 0.65rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 0.15s;
}

.term-accordion-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.term-accordion-subtitle {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
}
.term-accordion-subtitle:hover {
  color: var(--accent);
}

.term-accordion-body {
  display: none;
  border-top: 1px solid var(--border);
}
.term-accordion-body.open {
  display: block;
}

.term-screen {
  background: #0d1117;
  color: #c9d1d9;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  padding: 1.25rem;
  height: 320px;
  overflow-y: auto;
}

.term-cmd {
  color: #58a6ff;
}
.term-cmd::before {
  content: '';
}

.term-comment {
  color: #8b949e;
}

.term-out {
  color: #c9d1d9;
}

.term-blank {
  height: 0.5rem;
}

.term-cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: #58a6ff;
  font-size: 0.85rem;
}

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

@media (max-width: 768px) {
  .term-screen {
    font-size: 0.72rem;
    height: 260px;
  }
}