/* Global Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

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

/* Login Page Styles */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
}

.login-container h1 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.login-container p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
}

.login-box {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--dark-color);
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border 0.3s;
}

.input-group input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-login:hover {
    background-color: #2980b9;
}

/* Dashboard Styles */
.dashboard-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.dashboard-header {
    grid-column: 1 / -1;
    background-color: var(--secondary-color);
    color: white;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.dashboard-header h1 {
    font-size: 1.5rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info span {
    font-weight: 500;
}

.btn-logout {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 15px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn-logout:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar {
    background-color: white;
    padding: 20px 0;
    border-right: 1px solid #eee;
    height: calc(100vh - 60px);
    position: sticky;
    top: 60px;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    margin-bottom: 5px;
}

.sidebar a {
    display: block;
    padding: 12px 20px;
    color: var(--dark-color);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar a:hover {
    background-color: #f5f7fa;
    border-left: 3px solid var(--primary-color);
}

.sidebar a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar .active a {
    background-color: #f5f7fa;
    border-left: 3px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 500;
}

.main-content {
    padding: 30px;
    background-color: #f5f7fa;
}

/* Table Styles */
.table-responsive {
    overflow-x: auto;
    margin-top: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.data-table th, .data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.data-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 500;
}

.data-table tr:hover {
    background-color: #f9f9f9;
}

.data-table .grand-total {
    font-weight: bold;
    background-color: #f5f7fa;
}

.data-table .grand-total td {
    border-top: 2px solid var(--dark-color);
}

/* Form Styles */
.filter-form {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group select, .form-group input[type="file"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.btn-filter, .btn-import {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-filter:hover, .btn-import:hover {
    background-color: #2980b9;
}

/* Import Page Styles */
.import-instructions {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.import-instructions h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.import-instructions ol {
    padding-left: 20px;
}

.import-instructions li {
    margin-bottom: 8px;
}

.import-form {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.import-message {
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
    font-weight: 500;
}

.import-message.success {
    background-color: rgba(46, 204, 113, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.import-message.error {
    background-color: rgba(231, 76, 60, 0.2);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .dashboard-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        height: auto;
        position: static;
    }
    
    .main-content {
        padding: 20px;
    }
}