:root {
  --navy: #1e3a5f;
  --navy-dark: #142840;
  --white: #ffffff;
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #d1d5db;
  --green: #16a34a;
  --red: #dc2626;
  --error-bg: #fef2f2;
  --error-text: #991b1b;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}

.app {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.app-header {
  background: var(--navy);
  color: var(--white);
  padding: 1rem;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-header h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  font-weight: 700;
}

form {
  padding: 1rem;
}

.card {
  background: var(--card);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--navy);
  font-weight: 600;
}

.field {
  margin-bottom: 0.75rem;
}

.field-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.date-display {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}

input[type="text"],
input[type="date"],
input[type="number"] {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--white);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.12);
}

input:invalid:not(:placeholder-shown) {
  border-color: var(--red);
}

.set-card {
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.set-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
  text-align: center;
}

.set-teams {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.team {
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  color: var(--navy);
  min-height: 1.5rem;
}

.score-inputs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  justify-content: center;
}

.score-inputs input[type="number"] {
  width: 5rem;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  padding: 0.5rem;
}

.dash {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--muted);
  user-select: none;
}

.set-error {
  color: var(--red);
  font-size: 0.875rem;
  text-align: center;
  margin-top: 0.5rem;
  min-height: 1.25rem;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.results-table th,
.results-table td {
  padding: 0.6rem 0.4rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.results-table th {
  font-weight: 600;
  color: var(--navy);
  background: #f8fafc;
}

.results-table td:first-child,
.results-table th:first-child {
  text-align: left;
}

.results-table .move-up {
  color: var(--green);
  font-weight: 700;
}

.results-table .move-down {
  color: var(--red);
  font-weight: 700;
}

.form-errors {
  color: var(--error-text);
  background: var(--error-bg);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  display: none;
}

.form-errors.visible {
  display: block;
}

.debug-status {
  margin-top: 0.75rem;
  padding: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  background: #f8fafc;
  border-radius: 0.5rem;
  word-break: break-word;
}

.form-errors ul {
  margin: 0;
  padding-left: 1.25rem;
}

.save-btn {
  display: block;
  width: 100%;
  padding: 1rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  background: var(--navy);
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.save-btn:hover:not(:disabled) {
  background: var(--navy-dark);
}

.save-btn:active:not(:disabled) {
  transform: translateY(1px);
}

.save-btn:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.toast {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%) translateY(150%);
  background: var(--navy);
  color: var(--white);
  padding: 0.9rem 1.25rem;
  border-radius: 0.75rem;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  z-index: 100;
  max-width: 90vw;
  text-align: center;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.success {
  background: var(--green);
}

.toast.offline {
  background: #d97706;
}

.toast.error {
  background: var(--red);
}

/* Desktop refinements */
@media (min-width: 640px) {
  .app {
    padding-top: 1rem;
  }

  .app-header {
    border-radius: 0.75rem 0.75rem 0 0;
    position: relative;
  }

  .set-teams {
    flex-direction: row;
    justify-content: space-between;
  }

  .team {
    flex: 1;
    text-align: left;
  }

  .team:last-child {
    text-align: right;
  }

  .score-inputs {
    width: auto;
    flex-shrink: 0;
  }
}

/* Admin page styles */
.admin-wrap {
  padding: 1rem;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.admin-header h1 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--navy);
}

.pin-form {
  max-width: 320px;
  margin: 3rem auto;
  text-align: center;
}

.pin-form input {
  text-align: center;
  font-size: 1.25rem;
  letter-spacing: 0.5rem;
  margin-bottom: 1rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--card);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.admin-table th,
.admin-table td {
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.admin-table th {
  background: var(--navy);
  color: var(--white);
}

.admin-table tr:last-child td {
  border-bottom: none;
}

.btn {
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  font-weight: 600;
}

.btn-danger {
  background: var(--red);
  color: var(--white);
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.queue-status {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1rem;
}