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

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
.header {
  background: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo h1 a {
  color: #007bff;
  text-decoration: none;
  font-size: 2rem;
  font-weight: bold;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-menu a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: #007bff;
}

.account-menu {
  position: relative;
}

.account-icon {
  width: 30px;
  height: 30px;
  cursor: pointer;
  border-radius: 50%;
}

.account-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  background: white;
  border: 1px solid #ddd;
  border-radius: 5px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  min-width: 150px;
  z-index: 1001;
}

.account-dropdown a {
  display: block;
  padding: 10px 15px;
  text-decoration: none;
  color: #333;
  border-bottom: 1px solid #eee;
}

.account-dropdown a:last-child {
  border-bottom: none;
}

.account-dropdown a:hover {
  background-color: #f8f9fa;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #007bff, #0056b3);
  color: white;
  text-align: center;
  padding: 4rem 0;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.9;
}

/* Room Cards */
.rooms-section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
  color: #333;
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.room-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.room-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.room-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.room-card-content {
  padding: 1.5rem;
}

.room-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.room-card p {
  color: #666;
  margin-bottom: 1rem;
}

.room-price {
  font-size: 1.2rem;
  font-weight: bold;
  color: #007bff;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}

.btn:hover {
  background: #0056b3;
}

.btn-secondary {
  background: #6c757d;
}

.btn-secondary:hover {
  background: #545b62;
}

.btn-success {
  background: #28a745;
}

.btn-success:hover {
  background: #1e7e34;
}

.btn-danger {
  background: #dc3545;
}

.btn-danger:hover {
  background: #c82333;
}

/* Forms */
.form-container {
  max-width: 500px;
  margin: 2rem auto;
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #007bff;
}

/* Calendar */
.calendar {
  background: white;
  border-radius: 10px;
  padding: 1rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin: 2rem 0;
}

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

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: #ddd;
}

.calendar-day {
  background: white;
  padding: 0.75rem;
  text-align: center;
  cursor: pointer;
  transition: background 0.3s;
}

.calendar-day:hover {
  background: #f8f9fa;
}

.calendar-day.available {
  background: #d4edda;
  color: #155724;
}

.calendar-day.unavailable {
  background: #f8d7da;
  color: #721c24;
  cursor: not-allowed;
}

.calendar-day.selected {
  background: #007bff;
  color: white;
}

/* Tables */
.table-container {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin: 2rem 0;
}

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

th,
td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

th {
  background: #f8f9fa;
  font-weight: 600;
}

tr:hover {
  background: #f8f9fa;
}

/* Dashboard */
.dashboard {
  padding: 2rem 0;
}

.dashboard-header {
  margin-bottom: 2rem;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: bold;
  color: #007bff;
}

.stat-label {
  color: #666;
  margin-top: 0.5rem;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: 5px;
  margin-bottom: 1rem;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-info {
  background: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .rooms-grid {
    grid-template-columns: 1fr;
  }

  .calendar-grid {
    font-size: 0.9rem;
  }

  .calendar-day {
    padding: 0.5rem;
  }

  table {
    font-size: 0.9rem;
  }

  th,
  td {
    padding: 0.5rem;
  }
}

/* Footer */
.footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
}