:root {
  --bg-dark: #1a1a1b;
  --accent-gold: #ffd700;
  --accent-red: #e21f26;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.75);
  --card-bg: rgba(26, 26, 27, 0.55);
  --card-border: rgba(255, 255, 255, 0.12);
  --input-bg: rgba(0, 0, 0, 0.35);
  --error: #ff6b6b;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text);
  background-color: var(--bg-dark);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 2.5rem 1.5rem 3rem;
  background-image:
    linear-gradient(
      to bottom,
      rgba(26, 26, 27, 0.72) 0%,
      rgba(26, 26, 27, 0.15) 40%,
      rgba(26, 26, 27, 0.35) 70%,
      rgba(26, 26, 27, 0.82) 100%
    ),
    url("images/pitt-front.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__header {
  width: 100%;
  text-align: center;
}

.tagline {
  margin-top: 0.75rem;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 300;
  color: var(--text-muted);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

.wordmark {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 300;
  letter-spacing: 0.35em;
  text-indent: 0.35em;
  text-transform: lowercase;
  border-bottom: 2px solid var(--accent-red);
  display: inline-block;
  padding-bottom: 0.25rem;
}

.signup {
  width: 100%;
  max-width: 56rem;
  margin-top: auto;
}

.signup__layout {
  display: flex;
  gap: 1.25rem;
  align-items: stretch;
}

.signup__intro-card,
.signup__card {
  padding: 1.75rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.signup__intro-card {
  flex: 1.35 1 0;
  min-width: 0;
}

.signup__card {
  flex: 1 1 18rem;
  min-width: 0;
  max-width: 22rem;
}

.signup__intro {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.signup__intro + .signup__intro {
  margin-top: 1rem;
}

.signup__title {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.signup__hint {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.signup__secondary {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 1.25rem;
}

.signup__secondary a {
  color: var(--accent-gold);
}

.signup__secondary a:hover {
  color: var(--text);
}

.signup__card.is-success .signup__fields,
.signup__card.is-success .signup__hint,
.signup__card.is-success .signup__title {
  display: none;
}

.signup__fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
}

.signup__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.signup__button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

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

.signup__input {
  flex: 1 1 12rem;
  min-width: 0;
  padding: 0.75rem 1rem;
  font: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px;
}

.signup__input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.signup__input:focus {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
  border-color: transparent;
}

.signup__button {
  flex: 0 0 auto;
  padding: 0.75rem 1.5rem;
  font: inherit;
  font-size: 1rem;
  font-weight: 500;
  color: var(--bg-dark);
  background: var(--text);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.signup__button:hover {
  background: var(--accent-gold);
}

.signup__button:focus {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

.signup__message {
  min-height: 1.25rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--error);
}

.signup__message:empty {
  margin-top: 0;
}

.signup__success {
  font-size: 1rem;
  color: var(--text);
  text-align: center;
}

.signup__success[hidden] {
  display: none;
}

@media (max-width: 720px) {
  .signup__layout {
    flex-direction: column;
    align-items: center;
  }

  .signup__intro-card,
  .signup__card {
    width: 100%;
    max-width: 32rem;
  }
}

@media (max-width: 480px) {
  .hero {
    background-position: 60% center;
    padding: 2rem 1.25rem 2.5rem;
  }

  .signup__intro-card,
  .signup__card {
    width: 90%;
    margin: 0 auto;
  }

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

  .signup__button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}