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

body {
    font-family: Arial, sans-serif;
    background-color: #f7f9fa;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Headers */
h1, h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.nav a {
    text-decoration: none;
    color: #fff;
    background-color: #3498db;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background 0.3s;
}

.nav a:hover {
    background-color: #2980b9;
}

/* Notifications */
.flash-message {
    padding: 15px 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    font-weight: bold;
    z-index: 1000;
}

.alert-float {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    min-width: 300px;
    animation: slideDown 0.5s ease-out forwards;
}

@keyframes slideDown {
    from {
        top: -50px;
        opacity: 0;
    }
    to {
        top: 20px;
        opacity: 1;
    }
}

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

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

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 12px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
input[type="date"],
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.btn {
    display: inline-block;
    background: #2ecc71;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
}

.btn-danger {
    background: #e74c3c;
}

.btn:hover {
    opacity: 0.9;
}

/* Utility */
.actions {
    display: flex;
    gap: 5px;
}