:root {
  --bg: #f7fbf8;
  --text: #123235;
  --muted: #66797a;
  --teal: #0d7772;
  --teal-light: #56c3b8;
  --gold: #f2bf4e;
  --border: rgba(18, 50, 53, 0.10);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 20% 15%, rgba(86, 195, 184, 0.18), transparent 34%),
    radial-gradient(circle at 85% 20%, rgba(242, 191, 78, 0.14), transparent 28%),
    var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  width: min(960px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 0 24px;
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 34px;
}

.logo-mark {
  width: 56px;
  height: 56px;
  border: 2px solid rgba(13, 119, 114, 0.35);
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(255,255,255,0.96), rgba(86,195,184,0.08));
  box-shadow: 0 10px 30px rgba(13, 119, 114, 0.10);
}

.spark {
  color: var(--gold);
  font-size: 28px;
  line-height: 1;
  text-shadow: 0 0 18px rgba(242, 191, 78, 0.45);
}

.brand-text {
  font-size: 36px;
  font-weight: 650;
  letter-spacing: -0.04em;
  color: var(--teal);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(46px, 7vw, 84px);
  line-height: 0.96;
  letter-spacing: -0.07em;
}

.subhead {
  max-width: 620px;
  margin: 24px auto 28px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.signup {
  width: min(520px, 100%);
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.signup input {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 16px 18px;
  font: inherit;
  color: var(--text);
  background: rgba(255,255,255,0.92);
  outline: none;
}

.signup input:focus {
  border-color: rgba(13, 119, 114, 0.45);
  box-shadow: 0 0 0 4px rgba(86, 195, 184, 0.15);
}

.signup button {
  border: 0;
  border-radius: 999px;
  padding: 16px 22px;
  font: inherit;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  cursor: pointer;
  box-shadow: 0 12px 26px rgba(13, 119, 114, 0.22);
}

.note {
  color: var(--muted);
  font-size: 14px;
  margin: 14px 0 0;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding-top: 12px;
}

@media (max-width: 760px) {
  .page {
    width: min(100% - 28px, 960px);
  }

  .signup {
    flex-direction: column;
  }
}