:root {
  --bg: #07120d;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --text: #f4fff8;
  --muted: #b6c8bc;
  --line: rgba(255, 255, 255, 0.16);
  --green: #67d68a;
  --green-dark: #239755;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100%;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(103, 214, 138, 0.28), transparent 32rem),
    radial-gradient(circle at 90% 20%, rgba(44, 138, 94, 0.32), transparent 30rem),
    linear-gradient(145deg, #06100b 0%, #102019 48%, #050807 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 80%);
}

a {
  color: inherit;
}

.page-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0;
}

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

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: min(360px, 72vw);
  height: auto;
  filter: drop-shadow(0 10px 24px rgba(0,0,0,.28));
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 42px;
  align-items: center;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 18px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green);
  background: rgba(103, 214, 138, 0.08);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.07em;
}

.intro {
  max-width: 760px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.75;
}

.hero-card {
  position: relative;
  margin: 0;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.05)),
    rgba(255,255,255,0.06);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -60px;
  bottom: -70px;
  border-radius: 50%;
  background: rgba(103, 214, 138, 0.18);
  filter: blur(8px);
}

.product-icon {
  width: 132px;
  height: 132px;
  display: block;
  margin-bottom: 44px;
  border-radius: 28px;
  box-shadow: 0 24px 48px rgba(0,0,0,.35);
}

.hero-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: #eaffef;
  font-size: 1.35rem;
  line-height: 1.35;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.signup {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 28px;
  align-items: center;
  margin: 84px 0 42px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.signup h2 {
  margin: 0 0 8px;
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.signup p {
  margin: 0;
  color: var(--muted);
}

.email-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.email-form input {
  width: 100%;
  min-height: 58px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  background: rgba(0,0,0,0.24);
  font: inherit;
  outline: none;
}

.email-form input::placeholder {
  color: rgba(244,255,248,.52);
}

.email-form input:focus {
  border-color: rgba(103,214,138,.8);
  box-shadow: 0 0 0 4px rgba(103,214,138,.14);
}

.button {
  min-height: 58px;
  padding: 0 22px;
  border: 0;
  border-radius: 16px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.button-primary {
  color: #06210f;
  background: linear-gradient(180deg, var(--green), #3bbe68);
  box-shadow: 0 16px 34px rgba(35,151,85,.3);
}

.button-primary:hover {
  transform: translateY(-1px);
}

.form-message {
  grid-column: 1 / -1;
  min-height: 1.4em;
  font-size: 0.95rem;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--green);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 860px) {
  .site-header {
    margin-bottom: 46px;
  }

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

  .hero-card {
    max-width: 420px;
  }

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

@media (max-width: 620px) {
  .page-shell {
    width: min(100% - 28px, 1120px);
    padding: 22px 0;
  }

  .email-form {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .site-footer {
    display: block;
  }

  .site-footer p + p {
    margin-top: 8px;
  }
}