/* ==================== CSS Reset & Base ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #6c757d;
    --success-color: #27ae60;
    --success-dark: #219a52;
    --danger-color: #e74c3c;
    --danger-dark: #c0392b;
    --warning-color: #f39c12;
    --warning-dark: #d68910;
    --info-color: #17a2b8;
    --info-dark: #138496;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --text-color: #333;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --radius: 8px;
    --radius-lg: 12px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f6fa;
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* ==================== Utility Classes ==================== */
.hidden {
    display: none !important;
}

/* ==================== Login Screen ==================== */
#loginScreen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
}

.login-box h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 2.5rem;
}

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

/* ==================== Header ==================== */
.header {
    background: white;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left .logo {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: bold;
}

.header-nav {
    display: flex;
    gap: 10px;
}

.nav-btn {
    background: transparent;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    color: var(--text-color);
}

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

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

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

.user-info {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==================== Form Elements ==================== */
.form-group {
    margin-bottom: 20px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-group.inline {
    display: flex;
    align-items: center;
    gap: 15px;
}

.form-group.inline label {
    margin-bottom: 0;
    white-space: nowrap;
}

.form-group.inline input {
    max-width: 200px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn:active {
    transform: translateY(0);
}

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

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

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

.btn-secondary:hover {
    background: #5a6268;
}

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

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

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

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

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

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

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

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

.btn-block {
    display: block;
    width: 100%;
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.2rem;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-icon {
    margin-right: 10px;
    font-size: 1.2em;
}

.button-group {
    display: flex;
    gap: 10px;
}

.button-group .btn {
    flex: 1;
}

/* ==================== Messages ==================== */
.error-message {
    background: #fdeaea;
    color: var(--danger-color);
    padding: 12px 15px;
    border-radius: var(--radius);
    margin-bottom: 15px;
    border-left: 4px solid var(--danger-color);
}

.error-message:empty {
    display: none;
}

.success-message {
    background: #e8f5e9;
    color: var(--success-color);
    padding: 12px 15px;
    border-radius: var(--radius);
    margin-bottom: 15px;
    border-left: 4px solid var(--success-color);
}

.success-message:empty {
    display: none;
}

/* ==================== Main Screens ==================== */
.main-screen {
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ==================== Dashboard ==================== */
.dashboard-container h2 {
    margin-bottom: 25px;
    color: var(--dark-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 1rem;
}

.quick-actions {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.quick-actions h3 {
    margin-bottom: 20px;
    color: var(--dark-color);
}

.action-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* ==================== Payment Screen ==================== */
.payment-container {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.payment-tabs {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 15px;
    background: transparent;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

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

.tab-btn.active {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

.tab-content {
    padding-top: 10px;
}

.ticket-status {
    padding: 15px;
    border-radius: var(--radius);
    margin-bottom: 15px;
}

.ticket-status.available {
    background: #e8f5e9;
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.ticket-status.used {
    background: #fdeaea;
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.ticket-status:empty {
    display: none;
}

/* ==================== Report Screen ==================== */
.report-container {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

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

.report-actions {
    display: flex;
    gap: 10px;
}

.report-status {
    padding: 15px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}

.report-status.open {
    background: #fff3cd;
    color: #856404;
}

.report-status.closed {
    background: #e8f5e9;
    color: var(--success-color);
}

.report-summary {
    background: var(--light-color);
    padding: 25px;
    border-radius: var(--radius);
    margin-bottom: 30px;
}

.report-summary h3 {
    margin-bottom: 20px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: white;
    border-radius: var(--radius);
}

.summary-item.total {
    background: var(--primary-color);
    color: white;
    font-weight: bold;
}

.summary-label {
    color: inherit;
}

.summary-value {
    font-weight: 600;
}

.report-section {
    margin-bottom: 30px;
}

.report-section h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.report-close-section {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid var(--border-color);
}

.already-closed {
    text-align: center;
    padding: 20px;
    background: var(--light-color);
    border-radius: var(--radius);
}

.close-form {
    max-width: 400px;
}

/* ==================== Admin Screen ==================== */
.admin-container {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.admin-section {
    margin-bottom: 40px;
}

.admin-section h3 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

/* ==================== Tables ==================== */
.table-container {
    overflow-x: auto;
}

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

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

.data-table th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
    white-space: nowrap;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

.data-table .actions {
    display: flex;
    gap: 5px;
}

/* ==================== Modal ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-small {
    max-width: 400px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 5px;
}

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

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

/* ==================== Responsive Design ==================== */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }

    .header-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 5px;
    }

    .nav-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
        white-space: nowrap;
    }

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

    .main-screen {
        padding: 15px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 20px;
    }

    .stat-value {
        font-size: 2rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn-large {
        padding: 15px 25px;
        font-size: 1rem;
    }

    .report-header {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group.inline {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group.inline input {
        max-width: 100%;
    }

    .report-actions {
        justify-content: center;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .data-table th,
    .data-table td {
        padding: 8px 10px;
        font-size: 0.9rem;
    }
}

/* ==================== Loading State ==================== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==================== Database Admin Screen ==================== */
.database-container {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.db-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

.db-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.db-section h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
    display: inline-block;
    margin-right: 15px;
}

.section-desc {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.warning-text {
    color: var(--danger-color) !important;
    font-weight: 500;
}

.db-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.db-stat-card {
    background: var(--light-color);
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
}

.db-stat-title {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.db-stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--dark-color);
}

.db-stat-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 5px;
}

.db-info {
    background: var(--light-color);
    padding: 15px 20px;
    border-radius: var(--radius);
}

.db-info p {
    margin: 5px 0;
}

.import-options {
    max-width: 500px;
}

.import-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: var(--radius);
}

.import-result.success {
    background: #e8f5e9;
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.import-result.error {
    background: #fdeaea;
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.result-message {
    margin-top: 15px;
    padding: 12px 15px;
    border-radius: var(--radius);
}

.result-message.success {
    background: #e8f5e9;
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.result-message.error {
    background: #fdeaea;
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.result-message:empty {
    display: none;
}

.danger-section {
    background: #fff5f5;
    padding: 25px;
    border-radius: var(--radius);
    border: 2px solid #ffcccc;
}

.danger-section h3 {
    color: var(--danger-color);
}

.delete-options {
    display: grid;
    gap: 25px;
}

.delete-option {
    padding: 20px;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.delete-option h4 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.delete-option p {
    color: var(--text-muted);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.delete-option .form-row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.delete-option select {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    min-width: 250px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* ==================== Print Styles ==================== */
@media print {
    .header,
    .report-header,
    .report-close-section,
    .btn {
        display: none !important;
    }

    .main-screen {
        padding: 0;
    }

    .report-container {
        box-shadow: none;
    }
}