:root {
  --gray-50: #f7f8fa;
  --gray-100: #eef0f3;
  --gray-200: #e2e5ea;
  --gray-300: #cdd2da;
  --gray-500: #8a919c;
  --gray-700: #4b5159;
  --gray-900: #262a30;
  --white: #ffffff;
  --accent: #c62828;
  --accent-dark: #9e1f1f;
  --danger: #c0392b;
  --success: #2e7d46;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--gray-100);
  color: var(--gray-900);
}

.hidden { display: none !important; }

/* ---------- Encabezado ---------- */
.appbar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.appbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.appbar-left img {
  height: 32px;
  width: auto;
  display: block;
}

.appbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
}

.appbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--gray-500);
}

.sap-clock {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  padding: 6px 12px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
  color: var(--gray-700);
}

.sap-clock .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-chip .name { color: var(--gray-900); font-weight: 600; }
.user-chip .role { color: var(--gray-500); font-size: 12px; }

/* ---------- Contenedores ---------- */
.screen {
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px;
}

.card {
  width: 100%;
  max-width: 440px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 1px 2px rgba(20, 22, 26, 0.04);
}

.card + .card { margin-top: 16px; }

.card-wide { max-width: 640px; }

h1 {
  font-size: 19px;
  margin: 0 0 4px 0;
  color: var(--gray-900);
}

.subtitle {
  color: var(--gray-500);
  margin: 0 0 18px 0;
  font-size: 14px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--gray-700);
  margin-top: 12px;
  margin-bottom: 4px;
}

input, select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 15px;
  background: var(--white);
  color: var(--gray-900);
}

input:focus, select:focus {
  outline: none;
  border-color: var(--gray-700);
}

button {
  width: 100%;
  margin-top: 14px;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--gray-900);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: #14171b; }
button:disabled { background: var(--gray-300); cursor: not-allowed; }

button.secondary {
  background: var(--white);
  color: var(--gray-900);
  border: 1px solid var(--gray-300);
}
button.secondary:hover { background: var(--gray-50); }

button.danger { background: var(--danger); }
button.danger:hover { background: #a5321f; }

button.link {
  width: auto;
  background: none;
  color: var(--gray-700);
  padding: 4px 8px;
  font-weight: 500;
  margin: 0;
  text-decoration: underline;
}
button.link:hover { background: none; color: var(--gray-900); }

.row {
  display: flex;
  gap: 8px;
}
.row input, .row select { flex: 1; }
.row button { width: auto; padding: 12px 16px; margin-top: 0; }

.error {
  color: var(--danger);
  font-size: 13px;
  min-height: 18px;
  margin-top: 8px;
}

.success-text { color: var(--success); font-size: 13px; }

.invoice-info {
  margin-top: 16px;
  padding: 14px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.9;
}

.label { color: var(--gray-500); margin-right: 4px; }

#save-message { font-size: 14px; min-height: 18px; margin-top: 8px; }

.nav-link {
  font-size: 13px;
  color: var(--gray-700);
  text-decoration: underline;
  cursor: pointer;
}

/* ---------- Tabla de usuarios (admin) ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: 12px;
}
th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--gray-200);
  word-break: break-word;
}
th { color: var(--gray-500); font-weight: 600; font-size: 12px; text-transform: none; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.badge.admin { background: #fdecea; color: var(--accent-dark); }
.badge.user { background: var(--gray-100); color: var(--gray-700); }

.icon-btn {
  width: auto;
  margin: 0;
  padding: 6px 12px;
  font-size: 12px;
  white-space: nowrap;
}

.table-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ---------- Modal de confirmacion ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(38, 42, 48, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}

.modal-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 26px;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 8px 30px rgba(20, 22, 26, 0.2);
}

.modal-box h2 {
  font-size: 17px;
  margin: 0 0 8px 0;
  color: var(--gray-900);
}

.modal-box p { font-size: 14px; color: var(--gray-700); margin: 0 0 4px 0; }

.modal-guia {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-900);
  background: var(--gray-50);
  border: 1px dashed var(--gray-300);
  border-radius: 8px;
  padding: 12px;
  margin: 14px 0;
  text-align: center;
  letter-spacing: 0.5px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}
.modal-actions button { margin-top: 0; }

@media (max-width: 480px) {
  .appbar { padding: 10px 14px; }
  .card { padding: 20px; }
}