/* ============================================================
   HAUSBRICKS — Design System
   Palette: Copper & Slate
   Typography: Playfair Display + DM Sans
   ============================================================ */

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

:root {
  /* Copper & Slate palette */
  --copper:        #B87333;
  --copper-light:  #D4A574;
  --copper-dark:   #8B5A2B;
  --slate:         #2F3640;
  --slate-mid:     #3D4A56;
  --slate-light:   #5A6A78;
  --cream:         #F5F0EB;
  --cream-dark:    #EDE5DA;
  --cream-darker:  #DDD0C0;
  --white:         #FAFAF8;
  --black:         #1A1A18;

  /* Semantic */
  --bg:            var(--cream);
  --bg-alt:        var(--cream-dark);
  --surface:       var(--white);
  --text-primary:  var(--slate);
  --text-secondary: var(--slate-light);
  --text-muted:    #8A9AA8;
  --accent:        var(--copper);
  --accent-light:  var(--copper-light);
  --border:        rgba(47,54,64,0.12);
  --border-strong: rgba(47,54,64,0.22);

  /* Status */
  --green:  #2D7A4F;
  --green-bg: #E8F5EE;
  --amber:  #B87333;
  --amber-bg: #FDF3E7;
  --red:    #C0392B;
  --red-bg: #FDECEA;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(47,54,64,0.08), 0 1px 2px rgba(47,54,64,0.06);
  --shadow-md: 0 4px 16px rgba(47,54,64,0.10), 0 2px 6px rgba(47,54,64,0.06);
  --shadow-lg: 0 12px 40px rgba(47,54,64,0.14), 0 4px 12px rgba(47,54,64,0.08);
  --shadow-xl: 0 24px 64px rgba(47,54,64,0.18), 0 8px 24px rgba(47,54,64,0.10);

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  color: var(--slate);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 600; letter-spacing: -0.015em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

em { font-style: italic; color: var(--copper); }

p { color: var(--text-secondary); line-height: 1.7; }

a { color: inherit; text-decoration: none; }

/* --- BUTTONS --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--slate);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background 0.2s var(--ease), transform 0.15s var(--ease), box-shadow 0.2s var(--ease);
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--copper);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active { transform: translateY(0); }

.btn-primary.btn-large {
  font-size: 1rem;
  padding: 16px 36px;
  border-radius: var(--radius-lg);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: transparent;
  color: var(--slate);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 11px 22px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-strong);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.btn-secondary:hover {
  border-color: var(--copper);
  color: var(--copper);
  background: var(--amber-bg);
}

/* --- BADGES --- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
}
.badge-copper { background: var(--amber-bg); color: var(--copper-dark); border: 1px solid rgba(184,115,51,0.25); }
.badge-outline { background: transparent; color: var(--slate-light); border: 1px solid var(--border-strong); }

/* --- LAYOUT --- */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}
.section-header h2 { margin-bottom: var(--space-md); }
.section-sub { max-width: 600px; margin: 0 auto; font-size: 1.05rem; }

.section-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: var(--space-md);
}

/* --- REVEAL ANIMATIONS --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(245,240,235,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.logo-mark { font-size: 1.1rem; }
.logo-text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--slate);
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}
.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--slate); }
.nav-cta { margin-left: var(--space-sm); }

/* Mode toggle */
.mode-toggle {
  display: flex;
  background: var(--cream-dark);
  border-radius: 100px;
  padding: 3px;
  gap: 2px;
}
.mode-btn {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 100px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.mode-btn.active {
  background: var(--slate);
  color: var(--cream);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--slate);
  border-radius: 2px;
  transition: all 0.2s;
}
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--border);
  background: var(--cream);
}
.nav-mobile a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-sm) 0;
}
.nav-mobile.open { display: flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-2xl);
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px var(--space-xl) var(--space-3xl);
  position: relative;
}

.hero-bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(47,54,64,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47,54,64,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: -1;
}

.hero-content { display: flex; flex-direction: column; gap: var(--space-lg); }

.hero-eyebrow { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.hero-headline {
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.hero-sub {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 520px;
}

/* Paste box */
.paste-box {
  background: var(--surface);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: var(--space-md);
  box-shadow: var(--shadow-lg);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.paste-box:focus-within {
  border-color: var(--copper);
  box-shadow: var(--shadow-xl), 0 0 0 3px rgba(184,115,51,0.12);
}
.paste-input-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.paste-icon {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.paste-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--slate);
  outline: none;
  min-width: 0;
}
.paste-input::placeholder { color: var(--text-muted); }
.paste-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--slate);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, transform 0.15s;
  flex-shrink: 0;
}
.paste-btn:hover { background: var(--copper); transform: translateY(-1px); }
.paste-btn svg { width: 14px; height: 14px; }
.paste-sources {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.paste-sources span:first-child {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.source-tag {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--cream-dark);
  padding: 2px 8px;
  border-radius: 100px;
}

/* Hero stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.hero-stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--copper);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero-stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border-strong);
}

/* Hero visual — app preview card */
.hero-visual { display: flex; justify-content: center; }

.app-preview-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.preview-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.preview-dots { display: flex; gap: 5px; }
.preview-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--cream-darker);
}
.preview-dots span:nth-child(1) { background: #FF5F57; }
.preview-dots span:nth-child(2) { background: #FEBC2E; }
.preview-dots span:nth-child(3) { background: #28C840; }
.preview-title {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: auto;
}
.preview-property {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-md);
  background: var(--cream);
  border-radius: var(--radius-md);
}
.preview-prop-img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--copper-light), var(--copper));
  flex-shrink: 0;
}
.preview-prop-address { font-size: 0.88rem; font-weight: 600; color: var(--slate); }
.preview-prop-price { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--copper); }
.preview-prop-type { font-size: 0.75rem; color: var(--text-muted); }

.preview-scores { display: flex; flex-direction: column; gap: 8px; }
.preview-score-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.score-bar {
  height: 6px;
  background: var(--cream-dark);
  border-radius: 100px;
  overflow: hidden;
}
.score-fill {
  height: 100%;
  background: var(--green);
  border-radius: 100px;
  transition: width 1s var(--ease-out);
}
.score-val { font-weight: 600; font-size: 0.82rem; min-width: 28px; text-align: right; }
.score-val.green { color: var(--green); }
.score-val.amber { color: var(--amber); }
.score-val.red { color: var(--red); }

.preview-ai-snippet {
  background: var(--slate);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.ai-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--copper-light);
  margin-bottom: 6px;
}
.preview-ai-snippet p {
  font-size: 0.78rem;
  line-height: 1.6;
  color: rgba(245,240,235,0.85);
}

.preview-flags { display: flex; gap: 6px; flex-wrap: wrap; }
.flag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 100px;
}
.flag-red { background: var(--red-bg); color: var(--red); }
.flag-amber { background: var(--amber-bg); color: var(--copper-dark); }
.flag-green { background: var(--green-bg); color: var(--green); }

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  padding: var(--space-3xl) 0;
  background: var(--slate);
  position: relative;
  overflow: hidden;
}
.how-it-works::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245,240,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,240,235,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}
.how-it-works .section-header { position: relative; }
.how-it-works .section-eyebrow { color: var(--copper-light); }
.how-it-works h2 { color: var(--cream); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.step {
  background: rgba(245,240,235,0.05);
  border: 1px solid rgba(245,240,235,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.step:hover {
  background: rgba(245,240,235,0.08);
  border-color: rgba(184,115,51,0.4);
  transform: translateY(-3px);
}
.step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--copper-light);
  margin-bottom: var(--space-md);
}
.step-icon {
  width: 44px;
  height: 44px;
  background: rgba(184,115,51,0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}
.step-icon svg { width: 22px; height: 22px; color: var(--copper-light); }
.step h3 { color: var(--cream); margin-bottom: var(--space-sm); font-size: 1.1rem; }
.step p { color: rgba(245,240,235,0.65); font-size: 0.88rem; line-height: 1.65; }

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  padding: var(--space-3xl) 0;
  background: var(--bg);
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid var(--border);
}
.feature-block:last-child { border-bottom: none; margin-bottom: 0; }
.feature-block-right .feature-visual { order: -1; }

.feature-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--copper);
  background: var(--amber-bg);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: var(--space-md);
}
.feature-content h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}
.feature-content p { margin-bottom: var(--space-md); font-size: 0.95rem; }

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-md);
}
.feature-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}
.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--copper);
  font-size: 0.8rem;
}

.feature-tone-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  padding: var(--space-sm) var(--space-md);
  border-left: 2px solid var(--copper-light);
  background: var(--amber-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* AI Demo Card */
.ai-demo-card {
  background: var(--slate);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.ai-demo-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ai-avatar {
  width: 28px; height: 28px;
  background: var(--copper);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: white;
}
.ai-demo-header span { font-size: 0.82rem; font-weight: 500; color: rgba(245,240,235,0.8); }
.ai-demo-messages {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-height: 380px;
  overflow-y: auto;
}
.ai-msg {
  font-size: 0.82rem;
  line-height: 1.65;
  padding: var(--space-md);
  border-radius: var(--radius-md);
}
.user-msg {
  background: rgba(245,240,235,0.08);
  color: rgba(245,240,235,0.9);
  align-self: flex-end;
  max-width: 80%;
  border-radius: var(--radius-md) var(--radius-md) 4px var(--radius-md);
}
.ai-response {
  background: rgba(184,115,51,0.12);
  border: 1px solid rgba(184,115,51,0.2);
  color: rgba(245,240,235,0.85);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ai-response p { color: rgba(245,240,235,0.85); font-size: 0.82rem; }

/* Comparison Demo */
.comparison-demo {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.comp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.comp-sort { color: var(--copper); cursor: pointer; }
.comp-table { display: flex; overflow-x: auto; }
.comp-col {
  flex: 1;
  min-width: 110px;
  border-right: 1px solid var(--border);
}
.comp-col:last-child { border-right: none; }
.comp-col-label { flex: 0 0 120px; min-width: 120px; }
.comp-col-winner { background: rgba(184,115,51,0.04); }
.comp-cell {
  padding: 10px var(--space-md);
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  min-height: 40px;
  display: flex;
  align-items: center;
}
.comp-cell:last-child { border-bottom: none; }
.comp-cell-header {
  background: var(--cream);
  font-weight: 600;
  color: var(--slate);
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-height: 56px;
}
.comp-badge {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 100px;
}
.comp-badge.best { background: var(--green-bg); color: var(--green); }
.comp-addr { font-size: 0.78rem; font-weight: 600; color: var(--slate); }
.epc {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  color: white;
}
.epc-b { background: #2D7A4F; }
.epc-c { background: #5A9A3A; }
.epc-d { background: #B87333; }
.fit-score { font-weight: 700; color: var(--green); font-size: 0.9rem; }
.fit-score.dim { color: var(--text-muted); }
.risk-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 100px;
}
.risk-badge.low { background: var(--green-bg); color: var(--green); }
.risk-badge.medium { background: var(--amber-bg); color: var(--copper-dark); }
.risk-badge.high { background: var(--red-bg); color: var(--red); }

/* Checklist Demo */
.checklist-demo {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.checklist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--slate);
}
.checklist-progress {
  font-size: 0.75rem;
  color: var(--copper);
  font-weight: 600;
}
.checklist-section-label {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--cream);
  border-bottom: 1px solid var(--border);
}
.checklist-items { padding: var(--space-sm) 0; }
.checklist-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-lg);
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.checklist-item:last-child { border-bottom: none; }
.checklist-item:hover { background: var(--cream); }
.check-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}
.check-pass { background: var(--green-bg); color: var(--green); }
.check-flag { background: var(--amber-bg); color: var(--copper-dark); }
.check-empty { background: var(--cream-dark); color: var(--text-muted); border: 1.5px solid var(--border-strong); }
.check-note {
  margin-left: auto;
  font-size: 0.68rem;
  color: var(--copper);
  background: var(--amber-bg);
  padding: 2px 6px;
  border-radius: 100px;
}
.checklist-item.flagged { background: rgba(184,115,51,0.04); }
.checklist-score-preview {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--cream);
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.checklist-score-val {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--copper);
}

/* Costs Demo */
.costs-demo {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.costs-header {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--slate);
  background: var(--cream);
  border-bottom: 1px solid var(--border);
}
.costs-rows { padding: var(--space-sm) 0; }
.cost-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px var(--space-lg);
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.cost-row:last-child { border-bottom: none; }
.cost-val { font-weight: 600; color: var(--slate); }
.cost-row-total {
  background: var(--slate);
  color: var(--cream);
  font-weight: 600;
}
.cost-row-total span { color: var(--cream); }
.cost-total { color: var(--copper-light) !important; font-size: 0.95rem; }
.costs-disclaimer {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.7rem;
  color: var(--text-muted);
  font-style: italic;
  border-top: 1px solid var(--border);
}

/* Negotiation Demo */
.negotiation-demo {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xl);
}
.neg-header {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--slate);
  margin-bottom: 4px;
}
.neg-property {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}
.neg-range { margin-bottom: var(--space-lg); }
.neg-range-bar {
  position: relative;
  height: 8px;
  background: var(--cream-dark);
  border-radius: 100px;
  margin-top: 40px;
  margin-bottom: 20px;
}
.neg-range-fill {
  position: absolute;
  left: 30%;
  right: 15%;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--copper), var(--red));
  border-radius: 100px;
}
.neg-marker {
  position: absolute;
  top: -36px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.neg-marker::after {
  content: '';
  position: absolute;
  top: 100%;
  margin-top: 4px;
  width: 2px;
  height: 20px;
  background: var(--border-strong);
}
.neg-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.neg-price { font-size: 0.8rem; font-weight: 700; color: var(--slate); }
.neg-open .neg-price { color: var(--green); }
.neg-ceiling .neg-price { color: var(--copper); }
.neg-walk .neg-price { color: var(--red); }
.neg-leverage { margin-bottom: var(--space-md); }
.neg-leverage-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}
.neg-point {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  padding-left: 14px;
  position: relative;
}
.neg-point::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--copper);
  font-size: 0.75rem;
}
.neg-draft-btn {
  width: 100%;
  padding: 10px;
  background: var(--slate);
  color: var(--cream);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: var(--space-sm);
}
.neg-draft-btn:hover { background: var(--copper); }

/* ============================================================
   MODES SECTION
   ============================================================ */
.modes-section {
  padding: var(--space-3xl) 0;
  background: var(--cream-dark);
}
.modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.mode-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: transform 0.2s, box-shadow 0.2s;
}
.mode-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.mode-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.mode-icon { font-size: 1.8rem; }
.mode-card h3 { font-size: 1.3rem; }
.mode-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mode-card li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 18px;
  position: relative;
}
.mode-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.8rem;
  font-weight: 700;
}
.mode-buyer { border-top: 3px solid var(--copper); }
.mode-renter { border-top: 3px solid var(--slate); }

/* ============================================================
   DATA TRUST
   ============================================================ */
.data-trust {
  padding: var(--space-3xl) 0;
  background: var(--bg);
}
.data-sources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.data-source {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}
.data-source:hover {
  border-color: var(--copper-light);
  transform: translateY(-2px);
}
.ds-icon { font-size: 1.8rem; margin-bottom: var(--space-sm); }
.ds-name { font-size: 0.88rem; font-weight: 600; color: var(--slate); margin-bottom: 4px; }
.ds-desc { font-size: 0.78rem; color: var(--text-muted); }
.trust-disclaimer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--cream-dark);
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.final-cta {
  padding: var(--space-3xl) 0;
  background: var(--slate);
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(184,115,51,0.2) 0%, transparent 70%);
}
.cta-block {
  text-align: center;
  position: relative;
}
.cta-block h2 { color: var(--cream); margin-bottom: var(--space-md); }
.cta-block p { color: rgba(245,240,235,0.7); margin-bottom: var(--space-xl); font-size: 1.05rem; }
.cta-note {
  margin-top: var(--space-md);
  font-size: 0.78rem;
  color: rgba(245,240,235,0.4);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--black);
  padding: var(--space-2xl) 0 var(--space-lg);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  justify-content: space-between;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}
.footer-brand .logo-text { color: var(--cream); }
.footer-brand p { font-size: 0.82rem; color: rgba(245,240,235,0.4); margin-top: var(--space-sm); }
.footer-links { display: flex; gap: var(--space-2xl); }
.footer-col { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-col-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245,240,235,0.4);
  margin-bottom: 4px;
}
.footer-col a {
  font-size: 0.85rem;
  color: rgba(245,240,235,0.6);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--copper-light); }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-xl) 0;
  border-top: 1px solid rgba(245,240,235,0.08);
  font-size: 0.75rem;
  color: rgba(245,240,235,0.3);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; padding-top: 80px; }
  .hero-visual { display: none; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-block { grid-template-columns: 1fr; }
  .feature-block-right .feature-visual { order: 0; }
  .data-sources-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .steps-grid { grid-template-columns: 1fr; }
  .modes-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: var(--space-xl); }
  .footer-links { flex-direction: column; gap: var(--space-lg); }
  .section-inner { padding: 0 var(--space-lg); }
  .hero { padding: 80px var(--space-lg) var(--space-2xl); }
  .data-sources-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: var(--space-md); }
}

@media (max-width: 480px) {
  .paste-input-wrap { flex-wrap: wrap; }
  .paste-btn { width: 100%; justify-content: center; }
  .data-sources-grid { grid-template-columns: 1fr; }
  .comp-table { font-size: 0.72rem; }
}