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

:root {
  --black: #0A0A0A;
  --white: #FAFAFA;
  --zinc-100: #F4F4F5;
  --zinc-200: #E4E4E7;
  --zinc-300: #D4D4D8;
  --zinc-400: #A1A1AA;
  --zinc-500: #71717A;
  --zinc-700: #3F3F46;
  --zinc-800: #27272A;
  --zinc-900: #18181B;
  --green: #16A34A;
  --green-bg: #DCFCE7;
  --red: #DC2626;
  --red-bg: #FEF2F2;
  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, monospace;
  --max-width: 1100px;
  --section-padding: 96px 24px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  font-size: 13px;
}

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

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

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

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 0px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 150ms ease-in-out, color 150ms ease-in-out, border-color 150ms ease-in-out;
  border: 1px solid var(--black);
  line-height: 1;
}

.btn-primary {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.btn-primary:hover {
  background: var(--zinc-800);
}

.btn-secondary {
  background: var(--white);
  color: var(--black);
  border-color: var(--black);
}

.btn-secondary:hover {
  background: var(--zinc-100);
}

.btn-white {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

.btn-white:hover {
  background: var(--zinc-100);
  border-color: var(--zinc-100);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: var(--zinc-500);
}

.btn-outline-white:hover {
  border-color: var(--white);
}

/* ---------- Navigation ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--zinc-300);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--black);
}

.nav-logo span {
  color: var(--black);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--zinc-500);
  transition: color 150ms ease-in-out;
}

.nav-links a:hover {
  color: var(--black);
}

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

.nav-cta .btn {
  padding: 6px 16px;
  font-size: 13px;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-mobile-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--black);
  margin: 5px 0;
}

/* ---------- Hero ---------- */

.hero {
  padding: 140px 24px 96px;
  text-align: center;
  background: var(--white);
  border-bottom: 1px solid var(--zinc-300);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--zinc-500);
  padding: 4px 12px;
  border: 1px solid var(--zinc-300);
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 36px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 16px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subhead {
  font-size: 14px;
  color: var(--zinc-500);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------- Trust Bar ---------- */

.trust-bar {
  background: var(--zinc-100);
  border-bottom: 1px solid var(--zinc-300);
  padding: 16px 24px;
}

.trust-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--zinc-500);
}

.trust-item svg {
  flex-shrink: 0;
  color: var(--green);
}

.trust-divider {
  width: 1px;
  height: 12px;
  background: var(--zinc-300);
  flex-shrink: 0;
}

/* ---------- Empathy / Problem ---------- */

.empathy {
  padding: var(--section-padding);
  background: var(--white);
  border-bottom: 1px solid var(--zinc-300);
}

.empathy-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.empathy-inner p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--zinc-500);
}

.empathy-inner p + p {
  margin-top: 16px;
  color: var(--black);
  font-weight: 500;
}

/* ---------- Value Props ---------- */

.value-props {
  padding: var(--section-padding);
  background: var(--zinc-100);
  border-bottom: 1px solid var(--zinc-300);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-header p {
  font-size: 13px;
  color: var(--zinc-500);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.6;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--zinc-300);
  border: 1px solid var(--zinc-300);
}

.value-card {
  background: var(--white);
  padding: 24px;
  transition: background 150ms ease-in-out;
}

.value-card:hover {
  background: var(--zinc-100);
}

.value-icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--zinc-300);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--black);
}

.value-card:nth-child(2) .value-icon,
.value-card:nth-child(3) .value-icon,
.value-card:nth-child(4) .value-icon {
  background: transparent;
  color: var(--black);
}

.value-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--black);
}

.value-card p {
  font-size: 13px;
  color: var(--zinc-500);
  line-height: 1.6;
}

/* ---------- How It Works ---------- */

.how-it-works {
  padding: var(--section-padding);
  background: var(--white);
  border-bottom: 1px solid var(--zinc-300);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--zinc-300);
  border: 1px solid var(--zinc-300);
}

.step {
  text-align: center;
  background: var(--white);
  padding: 32px 24px;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--black);
}

.step p {
  font-size: 13px;
  color: var(--zinc-500);
  line-height: 1.6;
  max-width: 280px;
  margin: 0 auto;
}

/* ---------- Difference / Comparison ---------- */

.difference {
  padding: var(--section-padding);
  background: var(--zinc-100);
  border-bottom: 1px solid var(--zinc-300);
}

.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid var(--black);
}

.comparison-col {
  padding: 32px 28px;
}

.comparison-old {
  background: var(--white);
  border-right: 1px solid var(--black);
}

.comparison-new {
  background: var(--black);
  color: var(--white);
}

.comparison-col h3 {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid;
}

.comparison-old h3 {
  border-color: var(--zinc-300);
  color: var(--zinc-500);
}

.comparison-new h3 {
  border-color: var(--zinc-700);
  color: var(--zinc-400);
}

.comparison-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comparison-col li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.5;
}

.comparison-old li {
  color: var(--zinc-500);
}

.comparison-col li svg {
  flex-shrink: 0;
  margin-top: 1px;
}

.comparison-old li svg {
  color: var(--zinc-300);
}

.comparison-new li svg {
  color: var(--green);
}

/* ---------- App Directory ---------- */

.app-directory {
  padding: var(--section-padding);
  background: var(--white);
  border-bottom: 1px solid var(--zinc-300);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  max-width: 680px;
  margin: 0 auto;
}

.app-card {
  border: 1px dashed var(--zinc-300);
  padding: 32px 24px;
  text-align: center;
  background: var(--zinc-100);
}

.app-card-live {
  border: 1px solid var(--zinc-300);
  background: var(--white);
}

.app-card-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--zinc-500);
  background: var(--white);
  border: 1px solid var(--zinc-300);
  padding: 2px 10px;
  margin-bottom: 16px;
}

.badge-beta {
  color: var(--green);
  border-color: var(--green);
  background: var(--green-bg);
}

.app-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--black);
}

.app-card p {
  font-size: 13px;
  color: var(--zinc-500);
  margin-bottom: 20px;
  line-height: 1.6;
}

.app-card .btn {
  padding: 6px 16px;
  font-size: 13px;
}

/* ---------- Social Proof ---------- */

.social-proof {
  padding: var(--section-padding);
  background: var(--zinc-100);
  border-bottom: 1px solid var(--zinc-300);
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--zinc-300);
  border: 1px solid var(--zinc-300);
  max-width: 900px;
  margin: 0 auto;
}

.testimonial-card {
  background: var(--white);
  padding: 28px 24px;
}

.testimonial-card blockquote {
  font-size: 13px;
  line-height: 1.7;
  color: var(--black);
  font-style: normal;
  margin-bottom: 16px;
}

.testimonial-author {
  font-size: 13px;
  font-weight: 600;
  color: var(--black);
}

.testimonial-role {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--zinc-500);
}

/* ---------- About / Human Touch ---------- */

.about {
  padding: var(--section-padding);
  background: var(--white);
  border-bottom: 1px solid var(--zinc-300);
}

.about-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.about-inner h2 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--black);
}

.about-inner p {
  font-size: 14px;
  color: var(--zinc-500);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-inner p:last-of-type {
  color: var(--black);
  font-weight: 500;
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--black);
  font-weight: 600;
  font-size: 13px;
  margin-top: 12px;
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: border-color 150ms ease-in-out;
}

.about-link:hover {
  border-color: var(--zinc-400);
}

/* ---------- Final CTA ---------- */

.final-cta {
  padding: 80px 24px;
  background: var(--zinc-900);
  text-align: center;
  color: var(--white);
}

.final-cta-inner {
  position: relative;
}

.final-cta h2 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.final-cta p {
  font-size: 14px;
  color: var(--zinc-400);
  max-width: 480px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.final-cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.trust-line {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--zinc-500);
  letter-spacing: 0.02em;
}

/* ---------- Footer ---------- */

.footer {
  background: var(--zinc-900);
  border-top: 1px solid var(--zinc-800);
  padding: 48px 24px 24px;
  color: var(--zinc-400);
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand {
  padding-right: 24px;
}

.footer-brand .nav-logo {
  margin-bottom: 12px;
  display: inline-block;
  color: var(--white);
}

.footer-brand .nav-logo span {
  color: var(--white);
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--zinc-500);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 13px;
  transition: color 150ms ease-in-out;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--zinc-800);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
  color: var(--zinc-500);
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 20px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-mobile-toggle {
    display: block;
  }

  .hero {
    padding: 100px 20px 64px;
  }

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

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

  .comparison-old {
    border-right: none;
    border-bottom: 1px solid var(--black);
  }

  .trust-bar-inner {
    flex-direction: column;
    gap: 8px;
  }

  .trust-divider {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-ctas,
  .final-cta-buttons {
    flex-direction: column;
    align-items: stretch;
    max-width: 280px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 480px) {
  .value-grid {
    grid-template-columns: 1fr;
  }
}