:root {
  --navy-950: #020a18;
  --navy-900: #061a3a;
  --navy-800: #0b2e66;
  --blue: #0057d9;
  --green: #7cff3a;
  --silver: #c8d0da;
  --graphite: #1c2430;
  --paper: #f3f5f8;
  --white: #ffffff;
  --ink: #101827;
  --muted: #607086;
  --line: rgba(200, 208, 218, 0.24);
  --shadow: 0 24px 70px rgba(2, 10, 24, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(2, 10, 24, 0.76);
  color: var(--white);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand img {
  border-radius: 8px;
}

.nav {
  display: flex;
  gap: 24px;
  color: var(--silver);
  font-weight: 700;
  font-size: 0.92rem;
}

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

.header-action,
.primary-action,
.secondary-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 800;
  white-space: nowrap;
}

.header-action,
.primary-action {
  background: var(--green);
  color: var(--navy-950);
  padding: 0 20px;
}

.secondary-action {
  border: 1px solid rgba(255, 255, 255, 0.34);
  color: var(--white);
  padding: 0 18px;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  padding: 120px clamp(20px, 6vw, 76px) 64px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy-950);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 10, 24, 0.96) 0%, rgba(6, 26, 58, 0.78) 44%, rgba(2, 10, 24, 0.24) 100%),
    linear-gradient(0deg, rgba(2, 10, 24, 0.9), rgba(2, 10, 24, 0.1) 42%),
    url("assets/feature-graphic-1024x500.png") center right / cover no-repeat;
  transform: scale(1.04);
}

.hero-content {
  position: relative;
  width: min(680px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 0.78rem;
}

h1,
h2,
h3 {
  font-family: Poppins, Inter, Arial, sans-serif;
  letter-spacing: 0;
  line-height: 1.08;
}

h1 {
  margin: 0;
  font-size: clamp(3.4rem, 8vw, 7.2rem);
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
}

h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.hero-copy {
  width: min(620px, 100%);
  margin: 18px 0 28px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
}

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

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: min(560px, 100%);
  margin: 42px 0 0;
}

.hero-metrics div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-metrics dt {
  color: var(--green);
  font-weight: 900;
  font-size: 1.3rem;
}

.hero-metrics dd {
  margin: 3px 0 0;
  color: var(--silver);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--white);
  border-bottom: 1px solid #dce3eb;
}

.trust-strip span {
  padding: 20px;
  text-align: center;
  font-weight: 800;
  color: var(--navy-900);
  border-right: 1px solid #dce3eb;
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(20px, 6vw, 76px);
}

.section-copy {
  max-width: 650px;
}

.section-copy p:not(.eyebrow),
.showcase p,
.section-heading + p {
  color: var(--muted);
}

.demo-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: clamp(36px, 6vw, 76px);
  background: linear-gradient(180deg, #ffffff 0%, #eef3f9 100%);
}

.demo-shell {
  display: grid;
  gap: 18px;
  justify-items: center;
}

.phone-frame {
  width: min(360px, 100%);
  padding: 16px;
  border-radius: 38px;
  background: linear-gradient(145deg, #0c1320, #2e3746);
  box-shadow: var(--shadow);
}

.phone-top {
  width: 86px;
  height: 8px;
  margin: 0 auto 14px;
  border-radius: 99px;
  background: #576274;
}

.app-screen {
  min-height: 590px;
  padding: 28px 22px;
  border-radius: 28px;
  background: linear-gradient(180deg, var(--navy-900), var(--navy-950));
  color: var(--white);
}

.app-icon {
  width: 82px;
  height: 82px;
  margin: 0 auto 18px;
  border-radius: 18px;
}

.app-screen h3 {
  text-align: center;
}

.app-screen label,
.result-panel span {
  display: block;
  color: var(--silver);
  font-weight: 700;
  font-size: 0.86rem;
}

.plate-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin: 8px 0 18px;
}

.plate-row input {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  padding: 0 12px;
  font: 800 1rem Inter, Arial, sans-serif;
  text-transform: uppercase;
}

.plate-row button {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: var(--green);
  color: var(--navy-950);
  padding: 0 14px;
  font-weight: 900;
  cursor: pointer;
}

.result-panel {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: 8px;
  background: var(--white);
  color: var(--navy-900);
}

.result-panel strong {
  font-size: 1.25rem;
}

.demo-note {
  max-width: 360px;
  padding: 18px;
  border-radius: 8px;
  background: var(--navy-900);
  color: var(--white);
}

.demo-note span {
  display: block;
  color: var(--silver);
  margin-top: 4px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 32px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  background: var(--paper);
}

.feature-grid .section-heading {
  grid-column: 1 / -1;
}

.feature-card,
.plan {
  min-height: 230px;
  padding: 24px;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 38px rgba(16, 24, 39, 0.08);
}

.feature-card p,
.plan p {
  color: var(--muted);
}

.feature-icon {
  display: inline-flex;
  min-width: 56px;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border-radius: 8px;
  border: 1px solid rgba(124, 255, 58, 0.55);
  color: var(--green);
  background: var(--navy-900);
  font-weight: 900;
  font-size: 0.82rem;
}

.feature-icon.chart {
  background: var(--blue);
  color: var(--white);
}

.feature-icon.shield {
  background: var(--green);
  color: var(--navy-950);
}

.feature-icon.history {
  background: var(--graphite);
}

.showcase {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 0.78fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding: clamp(64px, 9vw, 112px) clamp(20px, 6vw, 76px);
  background: var(--navy-950);
  color: var(--white);
}

.showcase img {
  border-radius: 8px;
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.42);
}

.showcase p {
  color: var(--silver);
  font-size: 1.08rem;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  background: #ffffff;
}

.plans .section-heading {
  grid-column: 1 / -1;
}

.plan {
  border: 1px solid #dce3eb;
}

.plan.highlighted {
  background: var(--navy-900);
  color: var(--white);
  border-color: var(--navy-900);
}

.plan.highlighted p {
  color: var(--silver);
}

.price {
  margin: 8px 0 16px;
  color: var(--green) !important;
  font-weight: 900;
}

.faq {
  background: var(--paper);
}

.faq details {
  max-width: 900px;
  padding: 22px 0;
  border-bottom: 1px solid #d4dde8;
}

.faq summary {
  cursor: pointer;
  color: var(--navy-900);
  font-weight: 900;
  font-size: 1.1rem;
}

.faq p {
  max-width: 760px;
  color: var(--muted);
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(48px, 7vw, 76px);
  background: var(--navy-900);
  color: var(--white);
}

.final-cta h2 {
  max-width: 820px;
  font-size: clamp(1.8rem, 4vw, 3.7rem);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  padding: 26px clamp(20px, 6vw, 76px);
  background: var(--navy-950);
  color: var(--silver);
}

.site-footer span {
  margin-right: auto;
  color: var(--white);
  font-weight: 800;
}

.site-footer a:hover {
  color: var(--green);
}

@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(2, 10, 24, 0.72), rgba(2, 10, 24, 0.98) 72%),
      url("assets/feature-graphic-1024x500.png") center top / cover no-repeat;
  }

  .trust-strip,
  .demo-section,
  .showcase,
  .plans {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .final-cta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 580px) {
  .site-header {
    padding: 12px 14px;
  }

  .brand span {
    display: none;
  }

  .header-action {
    min-height: 40px;
    padding: 0 13px;
    font-size: 0.88rem;
  }

  .hero {
    padding: 100px 18px 40px;
  }

  h1 {
    font-size: 3.35rem;
  }

  .hero-metrics,
  .trust-strip,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-metrics div,
  .trust-strip span,
  .feature-card,
  .plan {
    padding: 18px;
  }

  .plate-row {
    grid-template-columns: 1fr;
  }

  .app-screen {
    min-height: 540px;
  }
}