/* ===== Design tokens ===== */
:root {
  --color-bg-dark: #05070D;
  --color-bg-dark-raised: #101522;
  --color-cream: #F5F5F7;
  --color-cream-soft: #0B0F18;
  --color-surface: #1C1C1E;
  --color-surface-raised: #252529;
  --color-accent-start: #FF453A;
  --color-accent-end: #FF6B3D;
  --color-cta: #FF3B45;
  --color-cta-hover: #E62E39;
  --color-text-dark: #17171A;
  --color-text-light: #F5F5F7;
  --color-text-muted: #9898A2;

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text-light);
  background: var(--color-bg-dark);
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(90deg, var(--color-accent-start), var(--color-accent-end));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}

.btn-primary {
  background: var(--color-cta);
  color: #fff;
}
.btn-primary:hover { background: var(--color-cta-hover); transform: translateY(-1px); }

.btn-primary.is-disabled {
  background: var(--color-text-muted);
  cursor: default;
  pointer-events: none;
  opacity: 0.75;
}

.btn-ghost {
  background: transparent;
  color: var(--color-cream);
  border: 1px solid rgba(245, 245, 247, 0.28);
}
.btn-ghost:hover { background: rgba(245, 245, 247, 0.1); }

.btn-outline-dark {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid rgba(245, 245, 247, 0.25);
}
.btn-outline-dark:hover { background: rgba(245, 245, 247, 0.08); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 7, 13, 0.88);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-cream);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--color-cream);
  text-decoration: none;
  font-size: 15px;
  opacity: 0.85;
}
.nav-links a:hover { opacity: 1; }

.nav-cta { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-cream);
  font-size: 26px;
  cursor: pointer;
  line-height: 1;
}

/* ===== Hero ===== */
.hero {
  background:
    radial-gradient(circle at 80% 55%, rgba(255, 59, 69, 0.16), transparent 32%),
    radial-gradient(circle at 64% 88%, rgba(26, 86, 212, 0.16), transparent 30%),
    linear-gradient(180deg, #05070D 0%, #090D16 100%);
  color: var(--color-cream);
  padding: 96px 0 80px;
}

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

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 59, 69, 0.13);
  border: 1px solid rgba(255, 59, 69, 0.38);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-accent-start);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.hero p.lede {
  font-size: 19px;
  line-height: 1.55;
  color: rgba(245, 245, 247, 0.72);
  margin: 0 0 32px;
  max-width: 46ch;
}

.hero p.hero-signin {
  font-size: 16px;
  line-height: 1.5;
  color: rgba(245, 245, 247, 0.78);
  margin: -16px 0 32px;
  max-width: 46ch;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.hero-note {
  font-size: 13px;
  color: rgba(245, 245, 247, 0.5);
}

/* Product screenshots */
.hero-screenshot {
  display: block;
  width: min(100%, 340px);
  height: auto;
  margin: 0 auto;
  border-radius: 30px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.1);
}

.hero-visual {
  position: relative;
  isolation: isolate;
}

.hero-visual::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 12% -14%;
  background:
    radial-gradient(circle at 45% 28%, rgba(209, 45, 50, 0.48), transparent 38%),
    radial-gradient(circle at 64% 76%, rgba(181, 40, 21, 0.4), transparent 42%);
  filter: blur(34px);
  opacity: 0.85;
}

/* ===== Sections ===== */
section { padding: 88px 0; }

.section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 56px;
}

.section-head .tag {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-cta);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 34px;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.section-head p {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Problem */
.problem { background: #0B0F18; }

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid rgba(245, 245, 247, 0.1);
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 19px;
  margin: 0 0 10px;
}

.step-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Google data use */
.google-data { background: #0B0F18; }

.data-use-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.data-use-card {
  background: var(--color-surface);
  border: 1px solid rgba(245, 245, 247, 0.1);
  border-radius: var(--radius-md);
  padding: 26px 28px;
}

.data-use-card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.data-use-card p,
.data-use-note {
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

.data-use-note {
  max-width: 760px;
  margin: 28px auto 0;
  text-align: center;
}

/* Features grid */
.features { background: var(--color-bg-dark); color: var(--color-cream); }
.features .section-head p { color: rgba(245, 245, 247, 0.65); }
.features .section-head .tag { color: var(--color-accent-start); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid rgba(245, 245, 247, 0.1);
  border-radius: var(--radius-md);
  padding: 26px 22px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 59, 69, 0.15);
  color: #FF6B62;
  font-size: 20px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.55;
  color: rgba(245, 245, 247, 0.62);
  margin: 0;
}

/* Screenshots */
.screens {
  background:
    radial-gradient(circle at 15% 62%, rgba(20, 81, 190, 0.12), transparent 25%),
    radial-gradient(circle at 86% 28%, rgba(207, 53, 63, 0.12), transparent 23%),
    #080C14;
}

.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.screens-grid > div {
  --screen-glow: rgba(70, 115, 230, 0.35);
  position: relative;
  isolation: isolate;
}

.screens-grid > div::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 20% -10% 8%;
  background: radial-gradient(ellipse, var(--screen-glow) 0%, transparent 68%);
  filter: blur(28px);
  opacity: 0.9;
}

.screens-grid > div:nth-child(1) { --screen-glow: rgba(39, 103, 232, 0.52); }
.screens-grid > div:nth-child(2) { --screen-glow: rgba(223, 107, 33, 0.46); }
.screens-grid > div:nth-child(3) { --screen-glow: rgba(121, 68, 206, 0.48); }
.screens-grid > div:nth-child(4) { --screen-glow: rgba(34, 165, 82, 0.46); }

.screen-frame {
  background: var(--color-surface);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 44px -18px rgba(0,0,0,0.62), 0 0 0 1px rgba(245, 245, 247, 0.08);
}

.screen-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.screen-caption {
  text-align: center;
  margin-top: 14px;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Trust */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}

.trust-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid rgba(245, 245, 247, 0.1);
  border-radius: var(--radius-md);
}

.trust-icon {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.trust-item h3 {
  font-size: 15.5px;
  margin: 0 0 6px;
}

.trust-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin: 0;
}

/* Final CTA */
.final-cta {
  background:
    radial-gradient(circle at 80% 15%, rgba(255, 135, 84, 0.42), transparent 36%),
    linear-gradient(135deg, #C82735, #FF3B45 58%, #E93D45);
  color: #fff;
  text-align: center;
  border-radius: var(--radius-lg);
  margin: 0 24px;
  padding: 64px 32px;
}

.final-cta h2 {
  font-size: 32px;
  margin: 0 0 14px;
}

.final-cta p {
  font-size: 17px;
  margin: 0 0 32px;
  opacity: 0.95;
}

.final-cta .btn-primary {
  background: #101114;
}
.final-cta .btn-primary:hover { background: #252529; }
.final-cta .btn-primary.is-disabled { background: rgba(16,17,20,0.65); }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(245, 245, 247, 0.65);
  padding: 56px 0 32px;
  margin-top: 40px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(245, 245, 247, 0.12);
}

.footer-brand .brand { margin-bottom: 10px; }
.footer-brand p { font-size: 14px; max-width: 32ch; line-height: 1.5; margin: 0; }

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(245, 245, 247, 0.5);
  margin: 0 0 14px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(245, 245, 247, 0.85);
  text-decoration: none;
  margin-bottom: 10px;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(245, 245, 247, 0.45);
}

/* ===== Legal pages (privacy / terms) ===== */
.legal-page { background: #F7F7F8; color: var(--color-text-dark); }

.legal-hero {
  background: var(--color-bg-dark);
  color: var(--color-cream);
  padding: 64px 0 48px;
}

.legal-hero h1 { font-size: 36px; margin: 0 0 10px; }
.legal-hero p { color: rgba(239, 226, 219, 0.65); margin: 0; font-size: 15px; }

.legal-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  line-height: 1.7;
  font-size: 16px;
}

.legal-body h2 {
  font-size: 22px;
  margin: 40px 0 14px;
}
.legal-body h2:first-child { margin-top: 0; }

.legal-body p { margin: 0 0 16px; color: var(--color-text-dark); }
.legal-body ul { margin: 0 0 16px; padding-left: 22px; }
.legal-body li { margin-bottom: 8px; }

.legal-body a.email-link {
  color: var(--color-cta);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px dashed var(--color-cta);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .steps { grid-template-columns: 1fr; }
  .data-use-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .screens-grid { grid-template-columns: repeat(2, minmax(0, 320px)); justify-content: center; }
  .trust-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .site-header.is-open .nav-links {
    display: flex;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg-dark);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 18px;
  }
  .hero { padding: 56px 0 64px; }
  .hero h1 { font-size: 34px; }
  section { padding: 64px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .screens-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
  .footer-links { gap: 32px; }
  .footer-top, .footer-bottom { flex-direction: column; }
}