:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --secondary-color: #7f8c8d;
    --bg-color: #ecf0f1;
    --text-color: #2c3e50;
    --border-color: #bdc3c7;
    --white: #ffffff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Login Page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    margin-bottom: 10px;
    color: var(--primary-color);
    text-align: center;
}

.login-box .subtitle {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

/* Dashboard */
.dashboard {
    background: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.dashboard-header h1 {
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-name {
    color: var(--secondary-color);
    font-size: 14px;
}

.actions-bar {
    margin-bottom: 20px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.3s, transform 0.1s;
    text-decoration: none;
    display: inline-block;
}

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

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

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

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

.btn-secondary:hover {
    background-color: #6c7a7b;
}

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

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

.btn-icon {
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--text-color);
    border-radius: 4px;
    transition: background-color 0.3s;
}

.btn-icon:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.btn-icon.btn-danger:hover {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
}

/* Table */
.clients-table {
    overflow-x: auto;
}

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

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

th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
}

td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

td.actions {
    display: flex;
    gap: 5px;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background-color: #d4edda;
    color: #155724;
}

.badge-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.badge-secondary {
    background-color: #e2e3e5;
    color: #383d41;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--secondary-color);
    padding: 0;
    width: 30px;
    height: 30px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.modal-close:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.modal-body {
    padding: 20px;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Password Display */
.password-display {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 15px;
    padding: 15px;
    background-color: var(--bg-color);
    border-radius: 4px;
}

.password-display code {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    font-weight: bold;
    color: var(--primary-color);
}

.warning-text {
    color: var(--warning-color);
    font-weight: 500;
    background-color: #fff3cd;
    padding: 10px;
    border-radius: 4px;
    border-left: 4px solid var(--warning-color);
}

/* Flash Messages */
.flash-messages {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    max-width: 400px;
}

.flash-message {
    padding: 15px 20px;
    margin-bottom: 10px;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: opacity 0.3s;
}

.flash-message button {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: inherit;
    padding: 0;
    margin-left: 15px;
}

.flash-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success-color);
}

.flash-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.flash-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid #17a2b8;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    table {
        font-size: 14px;
    }

    th, td {
        padding: 8px 10px;
    }

    td.actions {
        flex-direction: column;
    }
}