:root {
    --primary-bg: #ffffff;
    --sidebar-bg: #0d1b2a;
    --header-bg: #f8f9fa;
    --primary-text: #333;
    --sidebar-text: #e0e1dd;
    --accent-color: #415a77;
    --approved-color: #2a9d8f;
    --rejected-color: #e76f51;
    --pending-color: #fca311;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: var(--primary-bg);
    color: var(--primary-text);
}

.container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--accent-color);
}

.sidebar-header h2 {
    margin: 0;
}

.user-info {
    padding: 20px;
    border-bottom: 1px solid var(--accent-color);
}

.user-info p {
    margin: 0;
}

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

.sidebar ul li a {
    display: block;
    padding: 15px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: background-color 0.2s;
}

.sidebar ul li a:hover {
    background-color: var(--accent-color);
}

.content {
    flex-grow: 1;
    padding: 30px;
}

.header {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
}

.header h1 {
    margin: 0;
}

/* Login Page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: #e9ecef;
}

.login-form {
    background: var(--primary-bg);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 10px var(--shadow-color);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    margin-top: 0;
    text-align: center;
    margin-bottom: 20px;
}

.login-form .error {
    color: var(--rejected-color);
    background-color: #fbeae5;
    border: 1px solid var(--rejected-color);
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

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

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

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 12px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #3a506b;
}
.login-details {
    margin-top: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 0.9em;
}

.login-details p {
    margin-top: 0;
}

.login-details ul {
    list-style-type: none;
    padding-left: 0;
    margin-bottom: 0;
}

.login-details li {
    margin-bottom: 5px;
}
/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: var(--header-bg);
    padding: 20px;
    border-radius: 8px;
    border-left: 5px solid var(--accent-color);
}

.card.pending { border-color: var(--pending-color); }
.card.approved { border-color: var(--approved-color); }
.card.rejected { border-color: var(--rejected-color); }

.card h3 {
    margin-top: 0;
    font-size: 1rem;
    color: #6c757d;
}

.card p {
    margin: 0;
    font-size: 2rem;
    font-weight: bold;
}

/* Table Styling */
.table-container {
    background: var(--primary-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 10px var(--shadow-color);
}

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

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

thead {
    background-color: var(--header-bg);
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background-color: #f1f3f5;
}

.status-pill {
    padding: 5px 10px;
    border-radius: 15px;
    color: white;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
}

.status-pill.pending { background-color: var(--pending-color); }
.status-pill.approved { background-color: var(--approved-color); }
.status-pill.rejected { background-color: var(--rejected-color); }

/* Form Container */
.form-container {
    max-width: 600px;
    margin: auto;
    background: var(--primary-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px var(--shadow-color);
}

/* Actions Buttons */
.actions .btn-approve, .actions .btn-reject {
    padding: 8px 12px;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    width: auto;
    margin-right: 5px;
}
.actions .btn-approve { background-color: var(--approved-color); }
.actions .btn-reject { background-color: var(--rejected-color); }

.actions .btn-approve:hover { background-color: #248a7f; }
.actions .btn-reject:hover { background-color: #d96245; }


/* Bar Chart */
.chart-container {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
}
.chart-container h3 {
    margin-top: 0;
    text-align: center;
}
.chart {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 250px;
    border-left: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    padding-top: 10px;
}
.bar-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 10%;
}
.bar {
    width: 50px;
    background-color: var(--accent-color);
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
    transition: height 0.5s ease-in-out;
    position: relative;
    display: flex;
    justify-content: center;
}
.bar .bar-label {
    position: absolute;
    top: -25px;
    font-size: 0.8em;
    font-weight: bold;
    color: var(--primary-text);
}

.month-label {
    margin-top: 10px;
    font-size: 0.9em;
    font-weight: bold;
}