/* ===== CSS Variables ===== */
:root {
    --green-dark: #2e7031;
    --green-base: #41883f;
    --green-light: #58c14d;
    --green-hover: #3b8f40;
    --green-accent: #2ecc71;
    --green-accent-hover: #27ae60;

    --blue-light: #e8f1f8;
    --blue-accent: #3498db;
    --blue-accent-hover: #2980b9;

    --beige: #fdfaf6;
    --gray-dark: #6c757d;
    --gray-light: #f8f9fa;
    --gray-hover: #f5f5f5;
    --gray-border: #ddd;

    --white: #ffffff;

    --danger: #e74c3c;
    --danger-hover: #c0392b;

    --alert-success-bg: #d4edda;
    --alert-success-text: #155724;
    --alert-success-border: #c3e6cb;

    --alert-danger-bg: #f8d7da;
    --alert-danger-text: #721c24;
    --alert-danger-border: #f5c6cb;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--beige);
}

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

.sidebar {
    width: 250px;
    background-color: var(--green-dark);
    color: var(--white);
    padding: 20px 0;
    transition: all 0.3s;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h3 {
    color: var(--white);
    font-size: 1.5rem;
}

.sidebar-menu {
    padding: 20px 0;
}

.sidebar-menu ul {
    list-style: none;
    padding: 0;
}

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

.sidebar-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s;
}

.sidebar-menu a:hover,
.sidebar-menu a:focus {
    background-color: var(--green-hover);
    color: var(--white);
}

.sidebar-menu a.active {
    background-color: var(--green-light);
    color: var(--white);
}

.sidebar-menu i {
    margin-right: 10px;
}

.main-content {
    flex: 1;
    padding: 20px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--blue-light);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

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

.user-info img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: 10px;
}

/* ===== Cards ===== */
.card {
    background-color: var(--white);
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.cards .card {
    text-align: center;
    padding: 30px 20px;
}

.cards .card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--gray-dark);
}

.cards .card p {
    font-size: 2rem;
    font-weight: bold;
    color: var(--green-light);
    margin-bottom: 15px;
}

/* ===== Recent Activity ===== */
.recent-activity ul {
    list-style: none;
    padding: 0;
}

.recent-activity li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.recent-activity li:last-child {
    border-bottom: none;
}

/* ===== Buttons ===== */
.btn {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn:focus {
    outline: 2px solid black;
}

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

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

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

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

.btn-success {
    background-color: var(--green-accent);
    color: var(--white);
}

.btn-success:hover {
    background-color: var(--green-accent-hover);
}

.btn-info {
    background-color: var(--blue-accent);
    color: white;
}

.btn-info:hover {
    background-color: var(--blue-accent-hover);
}

/* ===== Tables ===== */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--gray-border);
}

.table th {
    background-color: var(--gray-light);
    font-weight: 600;
}

.table tr:hover {
    background-color: var(--gray-hover);
}

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

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

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--gray-border);
    border-radius: 4px;
    font-size: 14px;
}

.form-control:focus {
    border-color: var(--green-light);
    outline: none;
}

/* ===== Alerts ===== */
.alert {
    padding: 10px 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: var(--alert-success-bg);
    color: var(--alert-success-text);
    border: 1px solid var(--alert-success-border);
}

.alert-danger {
    background-color: var(--alert-danger-bg);
    color: var(--alert-danger-text);
    border: 1px solid var(--alert-danger-border);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .cards {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 576px) {
    .sidebar {
        width: 100%;
        position: relative;
    }

    .container {
        flex-direction: column;
    }
}

@media (max-width: 400px) {
    .form-container {
        padding: 20px;
        margin: 20px;
    }
}