/* Clauseplain — stylesheet */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand tokens — from assets/brand.md */
  --color-primary:         #b45309;  /* amber-700 */
  --color-primary-hover:   #92400e;  /* amber-800 */
  --color-bg:              #fafaf9;  /* stone-50 */
  --color-surface:         #ffffff;
  --color-border:          #e7e5e4;  /* stone-200 */
  --color-text:            #292524;  /* stone-900 */
  --color-text-muted:      #78716c;  /* stone-500 */
  --color-accent-unusual:  #be123c;  /* rose-700 */
  --color-success:         #15803d;  /* green-700 */

  /* Typography */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Atkinson Hyperlegible', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Spacing & radius */
  --radius: 4px;
  --space: 8px;

  /* Layout */
  --max-width: 760px;
  --max-width-wide: 960px;
}

html { font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==================== SHARED NAV ==================== */
.site-nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 calc(var(--space) * 2);
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 3);
  height: 56px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 1.5);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: calc(var(--space) * 2);
  list-style: none;
  margin-left: auto;
  align-items: center;
}
.nav-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: calc(var(--space) * 0.5) calc(var(--space) * 1);
  border-radius: var(--radius);
  transition: color 150ms ease;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-links .nav-cta {
  background: var(--color-primary);
  color: white;
  padding: calc(var(--space) * 0.75) calc(var(--space) * 2);
  border-radius: var(--radius);
  font-weight: 600;
  transition: background 150ms ease;
}
.nav-links .nav-cta:hover { background: var(--color-primary-hover); color: white; }
.nav-page-indicator { color: var(--color-primary); font-weight: 500; }

/* ==================== SHARED FOOTER ==================== */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding: calc(var(--space) * 4) calc(var(--space) * 2) calc(var(--space) * 3);
  background: var(--color-surface);
}
.footer-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 4);
  justify-content: space-between;
  align-items: flex-start;
}
.footer-brand { font-family: var(--font-display); font-size: 0.95rem; font-weight: 600; }
.footer-links { display: flex; gap: calc(var(--space) * 2); flex-wrap: wrap; }
.footer-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  transition: color 150ms ease;
}
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  max-width: var(--max-width-wide);
  margin: calc(var(--space) * 3) auto 0;
  padding-top: calc(var(--space) * 2);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ==================== LAYOUT — MAIN CONTENT ==================== */
.container { max-width: var(--max-width); margin: 0 auto; padding: calc(var(--space) * 4) calc(var(--space) * 2) calc(var(--space) * 6); }
.container-wide { max-width: var(--max-width-wide); }

/* ==================== HOME PAGE ==================== */
.hero {
  text-align: center;
  padding: calc(var(--space) * 8) calc(var(--space) * 2) calc(var(--space) * 6);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto;
}
.hero .hero-accent {
  color: var(--color-primary);
}
.hero .tagline {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-top: calc(var(--space) * 2);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.hero-actions {
  margin-top: calc(var(--space) * 4);
  display: flex;
  gap: calc(var(--space) * 2);
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: calc(var(--space) * 1.25) calc(var(--space) * 3);
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
  line-height: 1.4;
}
.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-success {
  background: var(--color-success);
  color: white;
}
.btn-success:hover { opacity: 0.9; }
.btn-sm { font-size: 0.85rem; padding: calc(var(--space) * 0.75) calc(var(--space) * 2); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* How it works — stepped list (not three cards) */
.how-section {
  padding: calc(var(--space) * 6) calc(var(--space) * 2);
  background: var(--color-surface);
}
.how-section h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: calc(var(--space) * 4);
}
.stepped-list {
  max-width: 580px;
  margin: 0 auto;
  counter-reset: step;
}
.stepped-list li {
  list-style: none;
  position: relative;
  padding-left: calc(var(--space) * 6);
  padding-bottom: calc(var(--space) * 4);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
}
.stepped-list li:last-child { padding-bottom: 0; }
.stepped-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-body);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  line-height: 1;
}

/* Features — single column narrative */
.features-section {
  padding: calc(var(--space) * 6) calc(var(--space) * 2);
}
.features-section h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: calc(var(--space) * 4);
}
.feature-item {
  max-width: 580px;
  margin: 0 auto calc(var(--space) * 3);
  padding: calc(var(--space) * 2.5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.feature-item h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: calc(var(--space) * 1);
  color: var(--color-text);
}
.feature-item p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* CTA banner */
.cta-banner {
  text-align: center;
  padding: calc(var(--space) * 6) calc(var(--space) * 2);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: calc(var(--space) * 1);
}
.cta-banner p {
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto calc(var(--space) * 3);
}

/* ==================== APP PAGE ==================== */
.app-section { margin-bottom: calc(var(--space) * 3); }
.app-section label { display: block; font-weight: 600; margin-bottom: calc(var(--space) * 1); font-size: 0.95rem; }

.app-textarea {
  width: 100%;
  padding: calc(var(--space) * 1.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  resize: vertical;
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color 150ms ease;
}
.app-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(180, 83, 9, 0.12);
}
.app-textarea::placeholder { color: var(--color-text-muted); opacity: 0.7; }

.char-count {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: right;
  margin-top: calc(var(--space) * 0.5);
}
.char-count.warning { color: var(--color-primary); }
.char-count.error { color: var(--color-accent-unusual); }

.form-actions {
  margin-top: calc(var(--space) * 1.5);
  display: flex;
  gap: calc(var(--space) * 1.5);
  justify-content: flex-end;
  flex-wrap: wrap;
}

.limitation-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: calc(var(--space) * 1);
  text-align: center;
  line-height: 1.5;
}

/* Status messages */
.status-msg {
  padding: calc(var(--space) * 1) calc(var(--space) * 1.5);
  border-radius: var(--radius);
  margin-bottom: calc(var(--space) * 2);
  font-size: 0.9rem;
}
.status-msg.error {
  background: #fef2f2;
  color: var(--color-accent-unusual);
  border: 1px solid #fecaca;
}
.status-msg.loading {
  background: #fff7ed;
  color: var(--color-primary);
  border: 1px solid #fed7aa;
}
.status-msg.success {
  background: #f0fdf4;
  color: var(--color-success);
  border: 1px solid #bbf7d0;
}

/* Pro feature bar */
.pro-bar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.5) calc(var(--space) * 2);
  display: flex;
  gap: calc(var(--space) * 1.5);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: calc(var(--space) * 2);
}
.pro-bar .pro-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}
.pro-bar-btn {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 0.5) calc(var(--space) * 1);
  font-size: 0.82rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease;
}
.pro-bar-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.pro-bar-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pro-bar-btn.active { border-color: var(--color-primary); background: #fff7ed; color: var(--color-primary); }

/* Clause cards — the editorial two-column layout */
.clause-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: calc(var(--space) * 3);
  overflow: hidden;
  transition: box-shadow 150ms ease;
}
.clause-card:hover { box-shadow: 0 1px 4px rgba(0,0,0,0.05); }
.clause-card.unusual {
  border-color: var(--color-accent-unusual);
  border-left-width: 3px;
  border-left-style: solid;
}

.clause-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: calc(var(--space) * 0.75) calc(var(--space) * 1.5);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.clause-card.unusual .clause-header {
  background: #fff5f5;
  border-bottom-color: #fecaca;
}

.clause-category {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}
.clause-unusual-badge {
  position: relative;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent-unusual);
  padding-left: calc(var(--space) * 1);
}
.clause-unusual-badge::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scale(1);
  width: 6px;
  height: 6px;
  background: var(--color-accent-unusual);
  border-radius: 50%;
  transition: transform 150ms ease;
}
.clause-card.unusual:hover .clause-unusual-badge::before {
  transform: translateY(-50%) scale(1.15);
}

.clause-body {
  padding: calc(var(--space) * 1.5);
}
.clause-original {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: calc(var(--space) * 1.5);
  padding: calc(var(--space) * 1);
  background: #f5f5f4;
  border: 1px solid #e7e5e4;
  border-radius: var(--radius);
  white-space: pre-wrap;
}
.clause-summary {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text);
}

.disclaimer-banner {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
  padding: calc(var(--space) * 1) calc(var(--space) * 1.5);
  margin-bottom: calc(var(--space) * 2);
  font-size: 0.85rem;
  color: #92400e;
}

/* Search input */
.search-box {
  width: 100%;
  padding: calc(var(--space) * 1) calc(var(--space) * 1.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.88rem;
  background: var(--color-surface);
  color: var(--color-text);
  margin-bottom: calc(var(--space) * 2);
  transition: border-color 150ms ease;
}
.search-box:focus { outline: none; border-color: var(--color-primary); }
.search-box::placeholder { color: var(--color-text-muted); opacity: 0.6; }

/* ==================== PRICING ==================== */
.pricing-header {
  text-align: center;
  padding: calc(var(--space) * 6) calc(var(--space) * 2) calc(var(--space) * 4);
}
.pricing-header h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
}
.pricing-header p {
  color: var(--color-text-muted);
  margin-top: calc(var(--space) * 1);
  font-size: 1rem;
}

.pricing-grid {
  display: flex;
  gap: calc(var(--space) * 3);
  justify-content: center;
  align-items: stretch;
  flex-wrap: wrap;
  margin-bottom: calc(var(--space) * 4);
}

.pricing-card {
  flex: 1;
  min-width: 280px;
  max-width: 360px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 4);
  display: flex;
  flex-direction: column;
}
.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
  position: relative;
}
.pricing-card.featured::before {
  content: 'Most popular';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-primary);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: calc(var(--space) * 0.5) calc(var(--space) * 1.5);
  border-radius: var(--radius);
}
.pricing-card h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: calc(var(--space) * 0.5);
}
.pricing-card .price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: calc(var(--space) * 0.5);
}
.pricing-card .price-sub {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 2.5);
}
.pricing-card .price-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.feature-list {
  list-style: none;
  margin-bottom: calc(var(--space) * 3);
  flex-grow: 1;
}
.feature-list li {
  padding: calc(var(--space) * 0.75) 0;
  font-size: 0.9rem;
  color: var(--color-text);
  display: flex;
  gap: calc(var(--space) * 1);
  align-items: flex-start;
  border-bottom: 1px solid var(--color-border);
}
.feature-list li:last-child { border-bottom: none; }
.feature-list .check { color: var(--color-success); font-weight: 700; flex-shrink: 0; }

.mock-checkout {
  max-width: 420px;
  margin: 0 auto calc(var(--space) * 4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 3);
}
.mock-checkout h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: calc(var(--space) * 2); text-align: center; }
.mock-checkout .mock-label { display: block; font-size: 0.82rem; font-weight: 600; margin-bottom: calc(var(--space) * 0.5); color: var(--color-text-muted); }
.mock-checkout .mock-input {
  width: 100%;
  padding: calc(var(--space) * 1) calc(var(--space) * 1.25);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  margin-bottom: calc(var(--space) * 1.5);
  background: #f5f5f4;
  color: var(--color-text-muted);
}
.mock-checkout .demo-badge {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 2);
  padding: calc(var(--space) * 0.75);
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
}
.mock-checkout .btn-primary { width: 100%; text-align: center; }

.checkout-success {
  display: none;
  text-align: center;
  padding: calc(var(--space) * 3);
}
.checkout-success.show { display: block; }
.checkout-success .icon { font-size: 2.5rem; color: var(--color-success); margin-bottom: calc(var(--space) * 1); }
.checkout-success h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; margin-bottom: calc(var(--space) * 1); }
.checkout-success p { color: var(--color-text-muted); font-size: 0.9rem; }

/* ==================== PRIVACY / TERMS ==================== */
.legal-page {
  max-width: 680px;
  margin: 0 auto;
  padding: calc(var(--space) * 4) calc(var(--space) * 2) calc(var(--space) * 6);
}
.legal-page h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: calc(var(--space) * 0.5);
}
.legal-page .last-updated {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 3);
}
.legal-page h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: calc(var(--space) * 3);
  margin-bottom: calc(var(--space) * 1);
}
.legal-page p, .legal-page li {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: calc(var(--space) * 1);
}
.legal-page ul { padding-left: calc(var(--space) * 2); }
.legal-page strong { font-weight: 600; }
.legal-page .missing-entity-box {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.5);
  margin: calc(var(--space) * 2) 0;
  font-size: 0.88rem;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 640px) {
  .nav-inner { height: auto; flex-wrap: wrap; padding: calc(var(--space) * 1) calc(var(--space) * 2); gap: calc(var(--space) * 1); }
  .nav-links { margin-left: 0; width: 100%; gap: calc(var(--space) * 0.5); flex-wrap: wrap; }
  .nav-links a { font-size: 0.82rem; padding: calc(var(--space) * 0.5); }
  .nav-links .nav-cta { padding: calc(var(--space) * 0.5) calc(var(--space) * 1); }

  .hero { padding: calc(var(--space) * 4) calc(var(--space) * 1) calc(var(--space) * 3); }
  .hero h1 { font-size: 1.8rem; }
  .hero .tagline { font-size: 1rem; }

  .pricing-card { min-width: 100%; }

  .footer-inner { flex-direction: column; gap: calc(var(--space) * 2); align-items: center; text-align: center; }
}

/* Utility */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}