:root {
  --bg: #0D1411;
  --surface: #121A15;
  --surface-form: rgba(18, 26, 21, .85);
  --accent: #3DBA7E;
  --accent-hover: #4CC38A;
  --on-accent: #06110B;
  --text-primary: #F2F6F3;
  --text-strong: #E8EEE9;
  --text-secondary: #C9D6CD;
  --text-muted: #93A69A;
  --text-faint: #5E7268;
  --border: rgba(255, 255, 255, .07);
  --border-input: rgba(255, 255, 255, .12);
  --border-accent: rgba(61, 186, 126, .25);
  --error: #E8896F;
}

* { box-sizing: border-box; }

/* The success state and the submitted form are toggled via the hidden
   attribute; this must win over any display rule below. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

body {
  position: relative;
  overflow-x: hidden;
}

a { color: var(--accent-hover); }

.glow {
  position: absolute;
  top: -140px;
  left: 50%;
  transform: translateX(-50%);
  width: 420px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(61, 186, 126, .22), rgba(61, 186, 126, 0));
  pointer-events: none;
  z-index: 0;
}

/* Header */
.site-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 26px 26px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: rgba(61, 186, 126, .18);
  display: grid;
  place-items: center;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.logo-word {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--text-strong);
}

.badge {
  display: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(61, 186, 126, .35);
  border-radius: 999px;
  padding: 6px 14px;
}

/* Main / hero */
main {
  position: relative;
  z-index: 1;
  padding: 44px 26px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-size: 36px;
  line-height: 1.12;
  font-weight: 680;
  letter-spacing: -.025em;
  color: var(--text-primary);
  text-wrap: pretty;
}

.lead {
  margin: 18px auto 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 40ch;
  text-wrap: balance;
}

/* Deliberate line break so the lead centers evenly regardless of
   text-wrap: balance support. */
.lead-second { display: block; }

/* Benefits */
.benefits {
  width: 100%;
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  text-align: left;
}

.benefit-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 18px;
  transition: border-color 180ms ease;
}

.benefit-card:hover {
  border-color: var(--border-accent);
}

.benefit-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.benefit-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(61, 186, 126, .1);
  border: 1px solid rgba(61, 186, 126, .22);
  display: grid;
  place-items: center;
  color: var(--accent);
}

.benefit-icon svg {
  display: block;
  width: 18px;
  height: 18px;
}

.benefit-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 650;
  letter-spacing: -.01em;
  color: var(--text-primary);
}

.benefit-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Waitlist intro */
.waitlist-intro {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.waitlist-intro h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 680;
  letter-spacing: -.02em;
  color: var(--text-primary);
  text-wrap: balance;
}

.waitlist-intro p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 38ch;
  text-wrap: balance;
}

/* Form card */
.form-card {
  width: 100%;
  max-width: 560px;
  margin-top: 24px;
  background: var(--surface-form);
  border: 1px solid var(--border-accent);
  border-radius: 16px;
  padding: 20px;
  text-align: left;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .45);
}

#waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-input);
  border-radius: 10px;
  padding: 12px 13px;
  font-size: 14px;
  color: var(--text-strong);
  font-family: inherit;
}

input::placeholder { color: var(--text-faint); }

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(61, 186, 126, .14);
}

input.invalid {
  border-color: var(--error);
}

input.invalid:focus {
  box-shadow: 0 0 0 3px rgba(232, 137, 111, .14);
}

.field-error {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--error);
}

button[type="submit"] {
  width: 100%;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 10px;
  padding: 14px;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 180ms ease, opacity 180ms ease;
}

button[type="submit"]:hover { background: var(--accent-hover); }

button[type="submit"]:disabled {
  cursor: default;
  opacity: .65;
}

.microcopy {
  margin: 10px 0 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--text-faint);
  text-align: center;
}

.form-error {
  margin: 2px 0 0;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--error);
}

/* Success state */
.success-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  padding: 10px 0;
}

.success-check {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(61, 186, 126, .18);
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 18px;
}

.success-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-strong);
}

.success-sub {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 40px;
  padding: 18px 26px 24px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, .06);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-footer p {
  margin: 0;
  font-size: 11.5px;
  color: var(--text-faint);
}

.footer-year { display: none; }

/* ============ Desktop (md: 768px+) ============ */
@media (min-width: 768px) {
  .glow {
    top: -260px;
    width: 900px;
    height: 620px;
    background: radial-gradient(closest-side, rgba(61, 186, 126, .18), rgba(61, 186, 126, 0));
  }

  .site-header {
    justify-content: space-between;
    padding: 30px 64px 0;
  }

  .badge { display: inline-block; }

  main { padding: 100px 64px 96px; }

  .hero h1 { font-size: 60px; line-height: 1.08; letter-spacing: -.03em; max-width: 17ch; }

  .lead { margin-top: 24px; font-size: 21px; max-width: 72ch; }

  .benefits {
    max-width: 1100px;
    margin-top: 88px;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .benefit-card { border-radius: 16px; padding: 26px 24px; gap: 14px; }
  .benefit-icon { width: 38px; height: 38px; }
  .benefit-icon svg { width: 20px; height: 20px; }
  .benefit-title { font-size: 17px; }
  .benefit-card p { font-size: 14.5px; }

  .waitlist-intro { margin-top: 104px; gap: 12px; }
  .waitlist-intro h2 { font-size: 32px; }
  .waitlist-intro p { font-size: 17px; max-width: 52ch; }

  .form-card {
    margin-top: 32px;
    border-radius: 18px;
    padding: 28px;
  }

  #waitlist-form { gap: 14px; }

  input { padding: 13px 14px; font-size: 14.5px; }

  button[type="submit"] { padding: 15px; font-size: 15.5px; }

  .microcopy { margin-top: 12px; font-size: 11.5px; }

  .success-state { padding: 16px 0; }
  .success-check { width: 42px; height: 42px; font-size: 19px; }
  .success-title { font-size: 16px; }
  .success-sub { font-size: 13.5px; }

  .site-footer {
    margin-top: 0;
    padding: 22px 64px 28px;
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
    text-align: left;
  }

  .site-footer p { font-size: 12px; }
  .footer-year { display: block; }
}