/* === BASE === */
:root {
  --bg: #FAFAF9;
  --bg-alt: #F5F5F4;
  --bg-dark: #1A1A2E;
  --fg: #1A1A2E;
  --fg-muted: #57534E;
  --fg-subtle: #A8A29E;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --accent-soft: #FEF3C7;
  --white: #FFFFFF;
  --border: #E7E5E4;
  --danger: #DC2626;
  --success: #059669;
  --radius: 8px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-eyebrow {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-headline {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--fg);
  margin-bottom: 20px;
}

.section-headline.centered {
  text-align: center;
}

.section-body {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
}

/* === NAV === */
.nav {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.nav-logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.03em;
}

.nav-tagline {
  font-size: 13px;
  color: var(--fg-subtle);
}

/* === HERO === */
.hero {
  padding: 80px 0 64px;
  background: var(--bg);
}

.hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

.hero-headline {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  color: var(--fg);
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-subheadline {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  font-weight: 500;
}

.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-stat-row {
  display: flex;
  gap: 40px;
}

.hero-stat {}

.hero-stat-num {
  display: block;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--fg);
  line-height: 1;
  margin-bottom: 6px;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.4;
}

.stat-caveat {
  display: block;
  font-size: 11px;
  color: var(--fg-subtle);
  font-style: italic;
  margin-top: 6px;
  line-height: 1.4;
}

/* Hero Card */
.hero-card {
  background: var(--bg-dark);
  border-radius: var(--radius-lg);
  padding: 28px;
  color: var(--white);
}

.hero-card-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

.hero-chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-bubble {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  max-width: 85%;
}

.chat-out {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--white);
  align-self: flex-start;
}

.chat-in {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.9);
  align-self: flex-end;
}

/* === PROBLEM === */
.problem {
  padding: 80px 0;
  background: var(--bg-alt);
}

.problem-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* Leak Card */
.leak-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.leak-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.leak-row:last-of-type {
  border-bottom: none;
}

.leak-desc {
  font-size: 14px;
  color: var(--fg-muted);
}

.leak-val {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}

.leak-val.lost {
  background: #FEE2E2;
  color: #DC2626;
}

.leak-val.recovered {
  background: #D1FAE5;
  color: #059669;
}

.leak-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}

.leak-fix .leak-desc,
.leak-fix .leak-val {
  color: var(--fg);
  font-weight: 600;
}

/* === HOW === */
.how {
  padding: 80px 0;
  background: var(--bg);
}

.how-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin: 48px 0 40px;
}

.how-step {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.how-step-num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
}

.how-step-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.how-step-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.how-result {
  background: var(--bg-dark);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  text-align: center;
}

.how-result-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
}

.how-result-text em {
  color: var(--accent);
  font-style: normal;
}

/* === WHAT'S INSIDE === */
.whats-inside {
  padding: 80px 0;
  background: var(--bg-alt);
}

.whats-inside-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.kit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.kit-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.kit-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-soft);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-dark);
  margin-bottom: 16px;
}

.kit-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--fg);
}

.kit-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.whats-inside-cta {
  text-align: center;
  margin-top: 40px;
}

.btn-see-inside {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s;
}

.btn-see-inside:hover {
  background: var(--accent-dark);
}

/* === ROI === */
.roi {
  padding: 80px 0;
  background: var(--bg);
}

.roi-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.roi-context {
  margin-bottom: 40px;
}

.roi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.roi-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.roi-assumption {
  font-size: 13px;
  color: var(--fg-muted);
  margin-bottom: 12px;
}

.roi-calc {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.roi-math {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 14px;
  color: var(--fg-muted);
}

.roi-result {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--accent-dark);
}

.roi-footnote {
  font-size: 14px;
  color: var(--fg-muted);
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.roi-cta {
  text-align: center;
  margin-top: 32px;
}

.btn-roi-cta {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 16px;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s;
}

.btn-roi-cta:hover {
  background: var(--accent-dark);
}

/* === PRICING === */
.pricing {
  padding: 80px 0;
  background: var(--bg-alt);
}

.pricing-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 48px 0 32px;
}

.pricing-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--accent);
}

.pricing-card.premium {
  border: 1px solid var(--border);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-tier {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.pricing-price {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 44px;
  font-weight: 800;
  color: var(--fg);
  line-height: 1;
  margin-bottom: 12px;
}

.pricing-desc {
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-features li {
  font-size: 14px;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.pricing-maintenance {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  font-size: 15px;
  color: var(--fg-muted);
  text-align: center;
}

.pricing-maintenance strong {
  color: var(--fg);
}

/* Pricing CTA Buttons */
.pricing-cta-btn {
  display: block;
  margin-top: 24px;
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: var(--radius);
  text-align: center;
  text-decoration: none;
  transition: background 0.15s;
  cursor: pointer;
}

.pricing-cta-btn:hover {
  background: var(--accent-dark);
}

.pricing-cta-disabled {
  background: var(--bg-alt);
  color: var(--fg-subtle);
  cursor: default;
}

.pricing-cta-disabled:hover {
  background: var(--bg-alt);
}

.pricing-cta-outline {
  background: transparent;
  color: var(--fg-muted);
  border: 1px solid var(--border);
}

.pricing-cta-outline:hover {
  background: var(--bg-alt);
  color: var(--fg);
}

.pricing-cta-primary {
  background: var(--fg);
}

.pricing-cta-primary:hover {
  background: #2d2d4a;
}

/* Hero CTA Buttons */
.hero-cta-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 32px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s;
  white-space: nowrap;
}

.btn-hero-primary:hover {
  background: var(--accent-dark);
}

.btn-hero-secondary {
  font-size: 14px;
  color: var(--fg-muted);
  text-decoration: none;
  font-weight: 500;
}

.btn-hero-secondary:hover {
  color: var(--fg);
}

/* Closing CTA */
.closing-cta {
  display: inline-block;
  margin-top: 32px;
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 16px;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s;
}

.closing-cta:hover {
  background: var(--accent-dark);
}

.closing-cta-large {
  font-size: 18px;
  padding: 18px 40px;
}

/* === CLOSING === */
.closing {
  padding: 96px 0;
  background: var(--bg-dark);
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.closing-headline {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.closing-sub {
  font-size: 17px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 20px;
}

.closing-sub:last-child {
  margin-bottom: 0;
}

.closing-no-sub {
  margin-top: 24px;
  font-size: 15px;
  color: rgba(255,255,255,0.5);
}

/* === FOOTER === */
.footer {
  padding: 48px 0;
  background: var(--bg-dark);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-name {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  display: block;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.4);
  max-width: 280px;
}

.footer-tagline {
  font-size: 14px;
  color: rgba(255,255,255,0.3);
  text-align: right;
  max-width: 280px;
}

/* === PREVIEW / SEE WHAT YOU GET === */
.preview {
  padding: 80px 0;
  background: var(--bg);
}

.preview-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.preview-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.preview-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.preview-mockup {
  background: var(--bg-alt);
  padding: 16px;
  border-bottom: 1px solid var(--border);
  line-height: 0;
}

.preview-mockup svg {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.preview-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px 6px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--fg);
}

.preview-label-icon {
  color: var(--accent);
  display: flex;
  align-items: center;
}

.preview-caption {
  padding: 0 20px 20px;
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.6;
  margin: 0;
}

.preview-cta {
  text-align: center;
}

.btn-preview-cta {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 17px;
  font-weight: 700;
  padding: 18px 40px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s;
}

.btn-preview-cta:hover {
  background: var(--accent-dark);
}

.preview-cta-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--fg-subtle);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero-inner,
  .problem-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-stat-row {
    gap: 24px;
  }

  .how-steps {
    grid-template-columns: 1fr;
  }

  .kit-grid {
    grid-template-columns: 1fr;
  }

  .roi-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .footer-desc,
  .footer-tagline {
    max-width: none;
  }

  .footer-tagline {
    text-align: center;
  }

  .section-headline {
    font-size: 28px;
  }

  .hero-headline {
    font-size: 30px;
  }

  .closing-headline {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 48px 0;
  }

  .problem,
  .how,
  .whats-inside,
  .roi,
  .pricing,
  .closing {
    padding: 56px 0;
  }

  .nav-inner {
    padding: 0 16px;
  }

  .hero-inner,
  .problem-inner,
  .how-inner,
  .whats-inside-inner,
  .roi-inner,
  .pricing-inner,
  .closing-inner {
    padding: 0 16px;
  }

  .pricing-grid {
    gap: 16px;
  }

  .pricing-card {
    padding: 24px;
  }
}