:root {
  --ink: #17211d;
  --muted: #5e6b66;
  --line: #d9e0dc;
  --paper: #fbfcf9;
  --mist: #eef3ef;
  --deep: #0c1f19;
  --forest: #184f3d;
  --moss: #d9ead9;
  --gold: #c89b4a;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(12, 31, 25, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

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

button,
input {
  font: inherit;
}

.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: 18px 32px;
  color: var(--white);
  transition:
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(251, 252, 249, 0.94);
  box-shadow: 0 1px 20px rgba(12, 31, 25, 0.1);
  color: var(--ink);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 760;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 8px;
  font-weight: 780;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.94rem;
  font-weight: 650;
}

.nav-links a {
  opacity: 0.86;
}

.nav-links a:hover {
  opacity: 1;
}

.hero {
  position: relative;
  min-height: 88svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(12, 31, 25, 0.95), rgba(12, 31, 25, 0.72) 42%, rgba(12, 31, 25, 0.18)),
    url("./assets/private-ai-hero.png") center / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 31, 25, 0.2), rgba(12, 31, 25, 0.42)),
    radial-gradient(circle at 12% 70%, rgba(200, 155, 74, 0.22), transparent 28%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
  padding: 132px 0 74px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: 4.1rem;
  line-height: 1;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 675px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.18rem;
}

.waitlist-form {
  display: grid;
  gap: 12px;
}

.hero-form {
  grid-template-columns: minmax(210px, 300px) minmax(180px, 260px) auto;
  align-items: end;
  max-width: 860px;
  margin-top: 34px;
}

.field {
  display: grid;
  gap: 7px;
}

.field span {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.82rem;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  outline: none;
  padding: 0 16px;
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.16);
}

.field input:focus {
  border-color: var(--gold);
  box-shadow:
    0 0 0 3px rgba(200, 155, 74, 0.22),
    0 10px 34px rgba(0, 0, 0, 0.16);
}

.waitlist-form button {
  min-height: 52px;
  border: 1px solid var(--gold);
  border-radius: 8px;
  background: var(--gold);
  color: #111a16;
  cursor: pointer;
  font-weight: 820;
  padding: 0 20px;
  white-space: nowrap;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.waitlist-form button:hover {
  background: #d7ad60;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.18);
  transform: translateY(-1px);
}

.waitlist-form button:disabled {
  cursor: wait;
  opacity: 0.78;
  transform: none;
}

.form-note,
.form-status {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.86rem;
}

.form-note {
  color: rgba(255, 255, 255, 0.72);
}

.form-status {
  min-height: 1.2em;
  color: var(--moss);
  font-weight: 760;
}

.form-status.is-error {
  color: #ffd4c4;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.section {
  padding: 86px 32px;
}

.section-grid,
.security-layout,
.waitlist-layout {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 72px;
  align-items: start;
}

.intro-section {
  border-bottom: 1px solid var(--line);
}

.section h2 {
  margin: 0;
  font-size: 2.45rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.section h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.25;
}

.section-copy {
  display: grid;
  gap: 18px;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-copy p,
.audience-grid p,
.feature-card p,
.waitlist-layout p {
  margin: 0;
}

.muted-section {
  background: var(--mist);
}

.section-heading {
  width: min(1120px, 100%);
  margin: 0 auto 34px;
}

.section-heading h2 {
  max-width: 780px;
}

.feature-grid,
.audience-grid {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.audience-grid > div {
  min-height: 248px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 26px;
  box-shadow: 0 1px 0 rgba(12, 31, 25, 0.03);
}

.feature-icon {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 28px;
  border-radius: 8px;
  background: var(--deep);
  color: var(--moss);
  font-size: 0.82rem;
  font-weight: 820;
}

.feature-card p,
.audience-grid p {
  margin-top: 14px;
  color: var(--muted);
}

.security-section {
  background: var(--deep);
  color: var(--white);
}

.security-section .section-kicker {
  color: var(--gold);
}

.section-copy.compact {
  max-width: 590px;
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.72);
}

.security-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.security-list li {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  padding: 16px 18px;
  color: rgba(255, 255, 255, 0.86);
}

.pilot-section {
  background: #fbfcf9;
}

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

.waitlist-section {
  background:
    linear-gradient(135deg, rgba(24, 79, 61, 0.96), rgba(12, 31, 25, 0.98)),
    var(--deep);
  color: var(--white);
}

.waitlist-layout {
  align-items: center;
}

.waitlist-layout > div > p {
  max-width: 560px;
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 1.04rem;
}

.final-form {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  padding: 24px;
  box-shadow: var(--shadow);
}

.final-form .field span {
  color: rgba(255, 255, 255, 0.8);
}

.final-form .field.full {
  grid-column: 1 / -1;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer span:first-child {
  color: var(--ink);
  font-weight: 780;
}

@media (max-width: 900px) {
  .site-header {
    padding: 16px 22px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 86svh;
    background:
      linear-gradient(90deg, rgba(12, 31, 25, 0.96), rgba(12, 31, 25, 0.72)),
      url("./assets/private-ai-hero.png") center / cover no-repeat;
  }

  .hero-content {
    width: min(calc(100% - 36px), 720px);
    padding: 96px 0 42px;
  }

  h1 {
    font-size: 3.05rem;
  }

  .hero-copy {
    font-size: 1.06rem;
  }

  .hero-form,
  .section-grid,
  .security-layout,
  .waitlist-layout,
  .feature-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .hero-form {
    max-width: 560px;
  }

  .section {
    padding: 58px 22px;
  }

  .section h2 {
    font-size: 2rem;
  }

  .section-grid,
  .security-layout,
  .waitlist-layout {
    gap: 28px;
  }

  .feature-card,
  .audience-grid > div {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  .hero-content {
    width: min(calc(100% - 32px), 520px);
    padding: 84px 0 34px;
  }

  .brand {
    font-size: 0.96rem;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  h1 {
    max-width: 12ch;
    font-size: 2.1rem;
  }

  .hero-copy {
    max-width: 31ch;
    margin-top: 20px;
    font-size: 0.98rem;
  }

  .hero-form {
    margin-top: 26px;
  }

  .field input,
  .waitlist-form button {
    min-height: 50px;
  }

  .section h2 {
    font-size: 1.58rem;
  }

  .section {
    padding: 42px 16px;
  }

  .site-footer {
    flex-direction: column;
  }
}