/* Admin Panel Styles */
:root {
    --primary-color: #1e3a5f;
    --secondary-color: #4a90e2;
    --accent-color: #f39c12;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --text-dark: #2c3e50;
    --text-light: #ecf0f1;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #dfe6e9;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

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

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.login-container {
    background-color: var(--bg-white);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
}

.login-container h1 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 0.5rem;
}

.login-container h2 {
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.3rem;
}

.login-hint {
    text-align: center;
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* Admin Dashboard */
.admin-header {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 1.5rem 0;
    box-shadow: var(--shadow);
}

.admin-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 1.8rem;
}

/* Admin Navigation */
.admin-nav {
    background-color: var(--bg-white);
    border-bottom: 2px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-nav .container {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    border: none;
    color: var(--text-dark);
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    font-size: 1rem;
}

.tab-btn:hover {
    color: var(--secondary-color);
}

.tab-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

/* Admin Content */
.admin-content {
    padding: 2rem 0;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.tab-header h2 {
    color: var(--primary-color);
}

/* Data List */
.data-list {
    display: grid;
    gap: 1rem;
}

.data-item {
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary-color);
}

.data-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.data-item-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
}

.data-item-actions {
    display: flex;
    gap: 0.5rem;
}

.data-item-content {
    color: #7f8c8d;
    line-height: 1.8;
}

.status-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-badge.pending {
    background-color: #fff3cd;
    color: #856404;
}

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

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
    font-weight: 500;
}

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

.btn-primary:hover {
    background-color: #357abd;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

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

.btn-small {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}

.btn-success {
    background-color: var(--success-color);
    color: var(--text-light);
}

.btn-success:hover {
    background-color: #229954;
}

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

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

.btn-block {
    width: 100%;
}

/* Forms */
.form {
    width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

.message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    display: none;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

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

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    color: var(--primary-color);
}

.close {
    font-size: 2rem;
    cursor: pointer;
    color: #7f8c8d;
    line-height: 1;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .admin-header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .tab-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .data-item-header {
        flex-direction: column;
        gap: 1rem;
    }

    .data-item-actions {
        width: 100%;
        justify-content: flex-start;
    }
}