:root {
    --primary-color: #188a8d;
    --primary-light: #22aeb1;
    --primary-dark: #126668;
    --bg-color: #f4f7f6;
    --text-color: #333;
    --white: #ffffff;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Login Page Styles */
.login-container {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    padding: 40px;
    text-align: center;
    border-top: 5px solid var(--primary-color);
}

.login-header h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.login-header p {
    color: #777;
    font-size: 0.9em;
    margin-bottom: 30px;
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    transition: border-color 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(24, 138, 141, 0.2);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 12px 20px;
    width: 100%;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

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

.btn-primary:active {
    transform: scale(0.98);
}

.error-msg {
    color: var(--error-color);
    background-color: #fdf3f2;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 0.9em;
    border-left: 3px solid var(--error-color);
    text-align: left;
}

/* Dashboard Layout */
.dashboard-layout {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--primary-dark);
    color: var(--white);
    padding-top: 20px;
    position: fixed;
    height: 100%;
}

.sidebar .logo {
    text-align: center;
    padding: 0 20px 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 20px;
}

.sidebar .logo h3 {
    margin: 0;
    font-size: 1.2em;
}

.nav-links {
    list-style: none;
}

.nav-links li a {
    display: block;
    position: relative;
    padding: 15px 20px 15px 65px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 4px solid transparent;
    line-height: 1.4;
}

.nav-links li a .nav-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    text-align: center;
    font-size: 1.2em;
}

.nav-links li a:hover, .nav-links li a.active {
    background-color: rgba(255,255,255,0.1);
    color: var(--white);
    border-left-color: var(--primary-light);
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px 40px;
    background-color: var(--bg-color);
    min-width: 0;
    max-width: calc(100vw - 250px);
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid #ddd;
    margin-bottom: 30px;
}

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

.logout-btn {
    background-color: var(--error-color);
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 5px;
    font-size: 0.9em;
    transition: background-color 0.3s;
}

.logout-btn:hover {
    background-color: #c0392b;
}

.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background-color: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border-top: 4px solid var(--primary-color);
}

.card h3 {
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.card p {
    color: #666;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .dashboard-layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        position: static;
    }
    .main-content {
        margin-left: 0;
        padding: 15px;
    }
}

/* DataTable Custom Borders */
table.dataTable th,
table.dataTable td {
    border: 1px solid #ddd !important;
}