:root {
  --bg: #f7f9fc;
  --card: #ffffff;
  --border: rgba(15, 23, 42, 0.1);
  --text: #0f172a;
  --muted: rgba(15, 23, 42, 0.66);
  --accent: #2563eb; /* classic SaaS blue */
  --shadow: 0 18px 55px rgba(2, 6, 23, 0.1);
  --shadow2: 0 1px 0 rgba(2, 6, 23, 0.04);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden; /* non-scrollable */
  background: radial-gradient(
      900px 520px at 15% 10%,
      rgba(37, 99, 235, 0.14),
      transparent 60%
    ),
    radial-gradient(
      700px 520px at 85% 80%,
      rgba(14, 165, 233, 0.1),
      transparent 60%
    ),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

.brand {
  position: fixed;
  top: 20px;
  left: 24px;
  z-index: 10;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  font-size: 24px;
  user-select: none;
}

.footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 16px;
  text-align: center;
  font-size: 12px;
  color: rgba(15, 23, 42, 0.55);
}

.shell {
  height: 100vh;
  width: 100vw;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(860px, 100%);
  background: transparent; /* remove modal/card look */
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.headline {
  margin: 6px 0 10px;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  text-align: center;
}

.subhead {
  margin: 0 auto 22px;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.5;
  max-width: 60ch;
  text-align: center;
}

.form {
  margin-top: 8px;
}

.label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
  text-align: center;
}

.row {
  display: grid;
  place-items: center;
}

/* Centered, shorter form controls */
.controls {
  width: min(520px, 100%);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

input[type="email"] {
  height: 46px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.18);
  background: #ffffff;
  color: var(--text);
  outline: none;
}

input[type="email"]::placeholder {
  color: rgba(15, 23, 42, 0.45);
}

input[type="email"]:focus {
  border-color: rgba(37, 99, 235, 0.55);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.14);
}

button {
  height: 46px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
}

button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.fineprint {
  margin: 10px auto 0;
  color: rgba(15, 23, 42, 0.55);
  font-size: 12px;
  text-align: center;
}

.status {
  min-height: 20px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.status.ok {
  color: #047857;
}
.status.err {
  color: #b91c1c;
}

@media (max-width: 560px) {
  .brand {
    left: 16px;
    top: 16px;
  }
  .controls {
    grid-template-columns: 1fr;
  }
  button {
    width: 100%;
  }
}