/* Base styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

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

/* Navigation */
nav {
    background-color: #667eea;
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav h1 {
    margin: 0;
    font-size: 24px;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

/* Forms */
.form-container {
    max-width: 500px;
    margin: 40px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #333;
}

input[type="text"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="number"],
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

input:focus,
select:focus {
    outline: none;
    border-color: #667eea;
}

button,
.btn {
    background-color: #667eea;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

button:hover,
.btn:hover {
    background-color: #5568d3;
}

.btn-danger {
    background-color: #e74c3c;
}

.btn-danger:hover {
    background-color: #c0392b;
}

/* Messages */
.message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
}

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

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

/* Tables */
table {
    width: 100%;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

thead {
    background-color: #667eea;
    color: white;
}

th,
td {
    padding: 15px;
    text-align: left;
}

tbody tr:nth-child(even) {
    background-color: #f8f9fa;
}

tbody tr:hover {
    background-color: #e9ecef;
}

/* Dashboard */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    margin: 0 0 10px 0;
    color: #666;
    font-size: 14px;
    text-transform: uppercase;
}

.stat-card .value {
    font-size: 32px;
    font-weight: bold;
    color: #667eea;
}

/* Search */
.search-box {
    margin-bottom: 20px;
}

.search-box input {
    width: 100%;
    max-width: 400px;
}