:root {
    --primary-color: #09b022;
    --primary-hover: #078a1c;
    --light-gray: #f8f9fa;
    --border-gray: #e9ecef;
    --text-dark: #212529;
    --text-muted: #6c757d;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: white;
    color: var(--text-dark);
    line-height: 1.6;
}

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

/* Card Styling */
.card {
    background: white;
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin: 1rem 0;
}

.card-centered {
    max-width: 400px;
    margin: 10vh auto;
}

/* Form Styling */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    outline: 0;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(9, 176, 34, 0.25);
}

/* Button Styling */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    margin: 0.25rem;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.15s ease-in-out;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-block {
    width: 100%;
}

/* Logo */
.logo {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* Validation */
.text-danger {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.validation-summary-errors {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.validation-summary-errors ul {
    margin: 0;
    padding-left: 1.25rem;
}

/* Sidebar Layout */
.layout-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--light-gray);
    border-right: 1px solid var(--border-gray);
    padding: 1rem;
}

.sidebar .logo {
    margin-bottom: 2rem;
    text-align: left;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li {
    margin-bottom: 0.5rem;
}

.sidebar-nav a {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-dark);
    border-radius: 4px;
    transition: background-color 0.15s ease-in-out;
}

.sidebar-nav a:hover {
    background-color: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.main-content {
    flex: 1;
    padding: 2rem;
}

/* Page Title */
.page-title {
    margin-bottom: 2rem;
    color: var(--text-dark);
    font-size: 2rem;
    font-weight: 600;
}