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

:root {
  --bg: #0a0a0a;
  --surface: #161616;
  --border: #2a2a2a;
  --text: #f0f0f0;
  --muted: #888;
  --accent: #ffffff;
  --error: #ff6b6b;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Courier New', Courier, monospace;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

a:hover {
  border-bottom-color: var(--text);
}

/* Landing hero */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.hero h1 {
  font-size: clamp(3rem, 12vw, 5rem);
  font-weight: 700;
  letter-spacing: -2px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero .tagline {
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--muted);
  margin-bottom: 2rem;
}

.hero .blurb {
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero .cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0;
}

/* Header / nav */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -1px;
  color: var(--accent);
  border-bottom: none;
}

.site-nav a {
  margin-left: 1.25rem;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 2px;
}

/* Layout */
.container {
  flex: 1;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

h1 {
  font-size: 1.75rem;
  letter-spacing: -1px;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

.muted {
  color: var(--muted);
}

/* Forms */
.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

.form input[type="email"],
.form input[type="password"],
.form input[type="text"],
.form input[type="number"],
.form input[type="date"],
.form select,
.form textarea {
  background-color: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  padding: 0.6rem 0.75rem;
  width: 100%;
}

.form textarea {
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--text);
}

.units {
  border: 1px solid var(--border);
  padding: 0.75rem 1rem 1rem;
}

.units legend {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  padding: 0 0.4rem;
}

.form label.inline {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
  font-size: 1rem;
}

button {
  background-color: var(--accent);
  color: #000;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 0.7rem 1rem;
  border: none;
  cursor: pointer;
}

button:hover {
  background-color: var(--text);
}

/* Errors */
.errors {
  list-style: none;
  border: 1px solid var(--error);
  color: var(--error);
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.errors li + li {
  margin-top: 0.35rem;
}

.button-link {
  display: inline-block;
  background-color: var(--accent);
  color: #000;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
  padding: 0.6rem 1rem;
  border: none;
}

.button-link:hover {
  background-color: var(--text);
}

/* Panels */
.panel {
  border: 1px solid var(--border);
  padding: 1rem 1.25rem 1.25rem;
  margin-bottom: 1.5rem;
}

.panel h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.challenge-summary {
  margin-bottom: 1.5rem;
}

/* Definition list */
.details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1rem;
}

.details dt {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 1px;
  padding-top: 0.15rem;
}

/* Standings table */
.standings {
  width: 100%;
  border-collapse: collapse;
}

.standings th,
.standings td {
  text-align: left;
  padding: 0.5rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.standings th {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 1px;
}

.standings tr.me td {
  color: var(--accent);
}

/* Badges */
.badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge-ok {
  border-color: #3a7;
  color: #6d9;
}

.badge-bad {
  border-color: var(--error);
  color: var(--error);
}

/* Loser banner */
.loser-banner {
  border: 1px solid var(--error);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.loser-banner h2 {
  color: var(--error);
  margin-bottom: 0.5rem;
}

/* Invite link */
.invite-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.invite-link {
  flex: 1;
  width: 100%;
  background-color: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.6rem 0.75rem;
}

.invite-row .button-link {
  white-space: nowrap;
}

/* Invite banner on login / signup */
.invite-banner {
  border: 1px solid var(--accent);
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
}

/* Small hint text under a form field */
.field-hint {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.75rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 1.5rem;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}