/* DealShield AI website. Design tokens match the extension (CLAUDE.md §3). */
:root {
  --ds-primary: #4f46e5;
  --ds-primary-dark: #4338ca;
  --ds-secondary: #10b981;
  --ds-background: #f8fafc;
  --ds-text: #0f172a;
  --ds-muted: #475569;
  --ds-subtle: #94a3b8;
  --ds-border: #e2e8f0;
  --ds-card: #ffffff;
  --ds-radius: 16px;
  --ds-shadow: 0 1px 2px rgb(15 23 42 / 0.04), 0 8px 24px rgb(15 23 42 / 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ds-background);
  color: var(--ds-text);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ds-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Nav ------------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgb(248 250 252 / 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ds-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ds-text);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 14px;
}

.nav-links a {
  color: var(--ds-muted);
}

.nav-links a:hover {
  color: var(--ds-text);
  text-decoration: none;
}

/* Buttons --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s, transform 0.15s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--ds-primary);
  color: #fff;
  box-shadow: 0 6px 16px rgb(79 70 229 / 0.3);
}

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

.btn-ghost {
  background: var(--ds-card);
  color: var(--ds-text);
  border-color: var(--ds-border);
}

.btn-sm {
  height: 36px;
  padding: 0 14px;
  font-size: 14px;
}

.btn[aria-disabled='true'] {
  cursor: default;
}

/* Hero ------------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: -200px -100px auto auto;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgb(79 70 229 / 0.18), transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgb(79 70 229 / 0.08);
  color: var(--ds-primary);
  font-size: 13px;
  font-weight: 600;
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ds-secondary);
}

h1 {
  margin: 18px 0 16px;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h1 .accent {
  color: var(--ds-primary);
}

.lead {
  margin: 0 0 28px;
  max-width: 540px;
  font-size: 18px;
  color: var(--ds-muted);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ds-subtle);
}

/* Product mock (pure HTML/CSS, mirrors the extension popup) */
.mock {
  position: relative;
  background: var(--ds-card);
  border: 1px solid var(--ds-border);
  border-radius: 20px;
  box-shadow: 0 30px 60px rgb(15 23 42 / 0.12);
  overflow: hidden;
}

.mock-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--ds-primary);
  color: #fff;
}

.mock-head img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: rgb(255 255 255 / 0.15);
}

.mock-head strong {
  font-size: 14px;
}

.mock-head span {
  display: block;
  font-size: 11px;
  opacity: 0.75;
}

.mock-live {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.15);
  font-size: 11px;
  font-weight: 600;
}

.mock-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ds-secondary);
}

.mock-body {
  padding: 16px;
  display: grid;
  gap: 12px;
}

.mock-email {
  padding: 12px;
  border-radius: 12px;
  background: var(--ds-background);
  border: 1px solid var(--ds-border);
  font-size: 13px;
  color: var(--ds-muted);
}

.mock-email b {
  color: var(--ds-text);
}

.mock-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  border-radius: 10px;
  border: 1px solid var(--ds-border);
  font-size: 12px;
  font-weight: 600;
}

.mock-tabs span {
  flex: 1;
  text-align: center;
  padding: 6px 4px;
  border-radius: 7px;
  color: var(--ds-subtle);
}

.mock-tabs .active {
  background: rgb(79 70 229 / 0.1);
  color: var(--ds-primary);
}

.mock-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 12px;
}

.mock-split div {
  padding: 10px;
  border-radius: 10px;
  background: var(--ds-background);
  border: 1px solid var(--ds-border);
}

.mock-split .get {
  background: rgb(16 185 129 / 0.08);
  border-color: rgb(16 185 129 / 0.25);
}

.mock-split small {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ds-subtle);
}

.mock-split .get small {
  color: #047857;
}

.mock-draft {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--ds-border);
  font-size: 13px;
  color: var(--ds-muted);
}

.mock-draft-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ds-subtle);
}

.mock-draft-head em {
  font-style: normal;
  color: var(--ds-primary);
}

.placeholder {
  color: var(--ds-primary);
  font-weight: 600;
}

/* Sections -------------------------------------------------------------- */
section {
  padding: 80px 0;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3.5vw, 38px);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section-head p {
  margin: 0;
  color: var(--ds-muted);
  font-size: 17px;
}

.alt {
  background: var(--ds-card);
  border-top: 1px solid var(--ds-border);
  border-bottom: 1px solid var(--ds-border);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background: var(--ds-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 24px;
  box-shadow: var(--ds-shadow);
}

.alt .card {
  background: var(--ds-background);
  box-shadow: none;
}

.icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgb(79 70 229 / 0.1);
  color: var(--ds-primary);
  margin-bottom: 16px;
}

.icon.green {
  background: rgb(16 185 129 / 0.12);
  color: #047857;
}

.icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--ds-muted);
  font-size: 15px;
}

/* Steps */
.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 56px;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ds-primary);
  color: #fff;
  font-weight: 700;
}

/* Pricing */
.pricing {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 360px));
  justify-content: center;
  gap: 20px;
}

.price-card {
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border: 2px solid var(--ds-primary);
  position: relative;
}

.price-card .tag {
  position: absolute;
  top: -12px;
  right: 20px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--ds-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

.price {
  margin: 8px 0 4px;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.price small {
  font-size: 15px;
  font-weight: 500;
  color: var(--ds-muted);
}

.price-card ul {
  margin: 18px 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--ds-muted);
  font-size: 15px;
}

.price-card li {
  display: flex;
  gap: 10px;
}

.price-card li::before {
  content: '✓';
  color: var(--ds-secondary);
  font-weight: 700;
}

.price-card .btn {
  margin-top: auto;
}

/* FAQ */
.faq {
  max-width: 760px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq details {
  background: var(--ds-card);
  border: 1px solid var(--ds-border);
  border-radius: 12px;
  padding: 16px 20px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '+';
  float: right;
  color: var(--ds-subtle);
  font-weight: 400;
}

.faq details[open] summary::after {
  content: '–';
}

.faq p {
  margin: 10px 0 0;
  color: var(--ds-muted);
}

/* CTA band */
.cta-band {
  background: var(--ds-primary);
  color: #fff;
  border-radius: 24px;
  padding: 48px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-band h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -0.02em;
}

.cta-band p {
  margin: 0 0 24px;
  opacity: 0.85;
}

.cta-band .btn {
  background: #fff;
  color: var(--ds-primary);
}

/* Footer */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--ds-border);
  color: var(--ds-subtle);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--ds-muted);
}

/* Legal pages ------------------------------------------------------------ */
.legal {
  padding: 56px 0 80px;
}

.legal article {
  max-width: 760px;
  margin: 0 auto;
  background: var(--ds-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 40px clamp(20px, 5vw, 48px);
  box-shadow: var(--ds-shadow);
}

.legal h1 {
  margin-top: 0;
  font-size: clamp(30px, 4vw, 40px);
}

.legal h2 {
  margin: 36px 0 12px;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.legal p,
.legal li {
  color: var(--ds-muted);
}

.legal .meta {
  color: var(--ds-subtle);
  font-size: 14px;
}

.table-wrap {
  overflow-x: auto;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 8px 0;
}

.legal th,
.legal td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border-bottom: 1px solid var(--ds-border);
}

.legal th {
  color: var(--ds-text);
  font-weight: 600;
  background: var(--ds-background);
}

/* Responsive ------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero-grid,
  .grid-3 {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding-top: 48px;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .nav-inner .btn {
    margin-left: auto;
  }

  section {
    padding: 56px 0;
  }
}