:root {
  color-scheme: dark;
  --page: #000;
  --text: #f5f5f5;
  --muted: #fff;
  --placeholder: #888;
  --border: #686868;
  --border-active: #d8d8d8;
  --surface: #0b0b0b;
  --surface-hover: #171717;
  --success: #b8d8bd;
  --error: #e6a9a9;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--page);
  color: var(--muted);
  font-family: "Times New Roman", Times, serif;
  font-size: 12pt;
  line-height: 1.38;
}

.page {
  width: min(100% - 3rem, 560px);
  margin-inline: auto;
  padding-block: clamp(2.5rem, 7vw, 5rem);
}

.hero-video {
  display: block;
  width: min(100%, 480px);
  aspect-ratio: 1;
  margin: 0 auto clamp(2rem, 5vw, 3rem);
  background: var(--surface);
  object-fit: cover;
}

.hero-video[hidden] {
  display: none;
}

.content {
  width: 100%;
}

h1 {
  margin: 0 0 1.15rem;
  color: var(--text);
  font-size: 24pt;
  line-height: 1.15;
  text-align: center;
}

p {
  margin: 0 0 1rem;
}

ul {
  margin: -0.45rem 0 1.3rem;
  padding-left: 2rem;
}

li {
  padding-left: 0.15rem;
}

.signup-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.signup-form input,
.signup-form button {
  min-height: 2.35rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-family: inherit;
  font-size: 12pt;
}

.signup-form input {
  flex: 1;
  min-width: 0;
  padding: 0.45rem 0.6rem;
  background: var(--surface);
  color: var(--text);
}

.signup-form input::placeholder {
  color: var(--placeholder);
  opacity: 1;
}

.signup-form button {
  padding: 0.45rem 1rem;
  background: #202020;
  color: var(--text);
  cursor: pointer;
}

.signup-form button:hover {
  background: #2c2c2c;
}

.signup-form button:disabled {
  color: var(--placeholder);
  cursor: wait;
}

.signup-form input:focus-visible,
.signup-form button:focus-visible {
  outline: 2px solid var(--border-active);
  outline-offset: 1px;
}

.form-status {
  min-height: 1.45em;
  margin: 0.4rem 0 0;
  font-size: 11pt;
}

.form-status[data-state="success"] {
  color: var(--success);
}

.form-status[data-state="error"] {
  color: var(--error);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 1.5rem, 560px);
    padding-block: 1.5rem 2.5rem;
  }

  .hero-video {
    margin-bottom: 2rem;
  }

  .signup-form {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signup-form button {
    transition: none;
  }
}