* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

:root {
  --primary: #c17b6e;
  --primary-dark: #a66358;
  --secondary: #e8c4a0;
  --dark: #2c2c3e;
  --gray: #8a8a9a;
  --light: #faf7f4;
  --success: #7daa8b;
  --danger: #c17b7b;
  --warning: #e8c56e;
  --white: #ffffff;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --sidebar-bg: #2c2c3e;
  --sidebar-accent: #c17b6e;
  --rosa: #f2b5c0;
  --lila: #c9b8e8;
  --celeste: #b8d8e8;
  --amarillo: #f5e6a3;
  --verde: #b8dfc8;
  --beige: #f0e6d3;
}

/* LOGIN */
.login-body {
  background: linear-gradient(135deg, #f2b5c0 0%, #c9b8e8 50%, #b8d8e8 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.login-logo {
  text-align: center;
  margin-bottom: 30px;
  color: var(--white);
}

.login-logo h1 {
  font-size: 2rem;
  margin-bottom: 5px;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.login-logo p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
}

.login-card {
  background: var(--white);
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--shadow);
}

.login-card h2 {
  margin-bottom: 20px;
  color: var(--dark);
  text-align: center;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  color: var(--gray);
  font-size: 0.85rem;
  font-weight: 600;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus {
  border-color: var(--primary);
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary) 0%, #d4938a 100%);
  color: var(--white);
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(193, 123, 110, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  padding: 10px 20px;
  background: var(--light);
  color: var(--dark);
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-danger {
  padding: 10px 20px;
  background: var(--danger);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-success {
  padding: 10px 20px;
  background: var(--success);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.link-text {
  text-align: center;
  margin-top: 16px;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.85rem;
}

.error-msg {
  color: var(--danger);
  text-align: center;
  margin-top: 10px;
  font-size: 0.85rem;
  min-height: 20px;
}

/* PIN PAD */
.pin-display {
  text-align: center;
  font-size: 2rem;
  letter-spacing: 10px;
  padding: 16px;
  background: var(--light);
  border-radius: 8px;
  margin-bottom: 20px;
  color: var(--dark);
  font-weight: bold;
}

.pin-pad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}

.pin-pad button {
  padding: 18px;
  font-size: 1.3rem;
  font-weight: 600;
  border: 2px solid #e9ecef;
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
  transition: all 0.15s;
}

.pin-pad button:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* DASHBOARD */
.app-container {
  display: flex;
  min-height: 100vh;
  background: var(--light);
}

.sidebar {
  width: 240px;
  background: var(--dark);
  color: var(--white);
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  border-right: 3px solid var(--rosa);
}

.sidebar-logo {
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 10px;
}

.sidebar-logo h2 {
  font-size: 1rem;
  color: var(--secondary);
}

.sidebar-logo p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}

.nav-item {
  padding: 12px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  transition: background 0.2s;
  border-left: 3px solid transparent;
}

.nav-item:hover, .nav-item.active {
  background: rgba(242, 181, 192, 0.15);
  border-left-color: var(--rosa);
  color: var(--rosa);
}

.nav-item .icon { font-size: 1.1rem; }

.sidebar-bottom {
  margin-top: auto;
  padding: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.main-content {
  margin-left: 240px;
  flex: 1;
  padding: 24px;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 1.5rem;
  color: var(--dark);
}

.page-header p {
  color: var(--gray);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* HEADER BAR */
.header-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 16px;
  padding: 10px 24px;
  background: var(--white);
  border-bottom: 1px solid #f0e6d3;
  margin-bottom: 20px;
  border-radius: 0 0 12px 12px;
}

.header-clock {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray);
}

.connection-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
}

.connection-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  animation: pulse 2s infinite;
}

.connection-dot.offline {
  background: var(--danger);
  box-shadow: 0 0 6px var(--danger);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* CARDS */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--white);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.card-stat {
  text-align: center;
}

.card-stat .value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--lila));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card-stat .label {
  color: var(--gray);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* TABLES */
.table-container {
  background: var(--white);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 12px;
  font-size: 0.8rem;
  color: var(--gray);
  text-transform: uppercase;
  border-bottom: 2px solid #e9ecef;
}

td {
  padding: 12px;
  border-bottom: 1px solid #f0f0f0;
  font-size: 0.9rem;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafafa; }

/* BADGES */
.badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: #d4edda; color: #155724; }
.badge-danger { background: #f8d7da; color: #721c24; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-info { background: #d1ecf1; color: #0c5460; }

/* MESAS */
.mesas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}

.mesa-card {
  background: var(--white);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  border: 3px solid transparent;
  box-shadow: var(--shadow);
  transition: all 0.2s;
}

.mesa-card:hover { transform: translateY(-2px); }
.mesa-card.libre { border-color: var(--verde); }
.mesa-card.ocupada { border-color: var(--rosa); background: #fff5f7; }
.mesa-card.unida { border-color: var(--lila); background: #f5f0ff; cursor: default; }

.mesa-card .mesa-numero {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

.mesa-card .mesa-estado {
  font-size: 0.75rem;
  margin-top: 4px;
  color: var(--gray);
}

/* MODAL */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--white);
  border-radius: 16px;
  padding: 24px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h3 {
  margin-bottom: 16px;
  color: var(--dark);
}

.modal-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* NOTIFICACIONES */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--dark);
  color: var(--white);
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  z-index: 9999;
  transform: translateY(100px);
  transition: transform 0.3s;
}

.toast.show { transform: translateY(0); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* HAMBURGER MENU */
.hamburger-btn {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.hamburger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: white;
  margin: 5px 0;
  border-radius: 2px;
  transition: all 0.3s;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 99;
}

.sidebar-overlay.active { display: block; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .hamburger-btn { display: block; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 100;
    width: 260px;
  }

  .sidebar.open { transform: translateX(0); }

  .main-content {
    margin-left: 0;
    padding: 16px;
    padding-top: 56px;
  }

  .app-container { flex-direction: column; }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mesas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 769px) {
  .hamburger-btn { display: none; }
  .sidebar { transform: none !important; }
}

@keyframes parpadeo {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 rgba(193,123,123,0); }
  50% { opacity: 0.85; box-shadow: 0 0 12px rgba(193,123,123,0.6); }
}