:root {
  --palmy-red: #c62828;
  --palmy-teal: #00897b;
  --text: #1a1a1a;
  --text-muted: #5c5c5c;
  --surface: #ffffff;
  --border: #e0e0e0;
  --error-bg: #fff8e1;
  --error-border: #ffcc80;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background: linear-gradient(160deg, #fafafa 0%, #f0f4f4 50%, #fafafa 100%);
}

.attend {
  max-width: 22rem;
  min-height: 100dvh;
  margin: 0 auto;
  padding: 2rem 1.25rem 2.5rem;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.attend__header {
  margin-bottom: 1.75rem;
}

.attend__brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.15s ease;
}

.attend__brand:hover {
  opacity: 0.85;
}

.attend__brand:focus-visible {
  outline: 2px solid var(--palmy-teal);
  outline-offset: 4px;
  border-radius: 0.25rem;
}

.attend__brand-bar {
  height: 4px;
  width: 3rem;
  margin-bottom: 0.75rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--palmy-red), var(--palmy-teal));
}

.attend__brand-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--palmy-teal);
}

.attend__title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.attend__intro {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  color: var(--text-muted);
}

.attend__form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: stretch;
}

.attend__label {
  font-size: 0.85rem;
  font-weight: 500;
  text-align: left;
  color: var(--text-muted);
}

.attend__input {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-align: center;
  text-transform: uppercase;
  padding: 0.85rem 1rem;
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.attend__input:focus {
  outline: none;
  border-color: var(--palmy-teal);
  box-shadow: 0 0 0 3px rgba(0, 137, 123, 0.2);
}

.attend__submit {
  margin-top: 0.25rem;
  padding: 0.85rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--palmy-red);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.attend__submit:hover {
  background: #b71c1c;
}

.attend__submit:active {
  transform: scale(0.98);
}

.attend__error-panel {
  margin-top: 1.25rem;
  padding: 1rem;
  border-radius: 0.5rem;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
}

.attend__error {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
}

.attend__footer {
  margin-top: auto;
  padding-top: 2rem;
}

.attend__footer-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.attend__footer-link:hover {
  color: var(--palmy-teal);
  border-bottom-color: var(--palmy-teal);
}

.attend__footer-link:focus-visible {
  outline: 2px solid var(--palmy-teal);
  outline-offset: 2px;
  border-radius: 0.125rem;
}