/* Stock Scanner Web App Styles */

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

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
}

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

/* Navigation */
.navbar {
    background-color: var(--card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.logout {
    color: var(--danger-color);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Login Page */
.login-container {
    min-height: calc(100vh - 4rem);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    margin-bottom: 2rem;
    text-align: center;
    color: var(--primary-color);
}

.login-info {
    margin-top: 2rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    font-size: 0.9rem;
}

.login-info code {
    background: var(--card-bg);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--primary-color);
}

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

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
}

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

.btn-secondary:hover {
    background-color: #475569;
}

/* Dashboard */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Actions Section */
.actions-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Tables */
table {
    width: 100%;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

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

th {
    font-weight: 600;
    color: var(--text-primary);
}

tbody tr:hover {
    background-color: var(--bg-color);
}

/* Filters */
.filters {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    align-items: end;
    flex-wrap: wrap;
}

.filters label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filters select,
.filters input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

/* Strategy Cards */
.strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.strategy-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.strategy-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.strategy-stats {
    margin: 1rem 0;
}

.strategy-params ul {
    list-style: none;
    margin-top: 0.5rem;
}

.strategy-params li {
    padding: 0.25rem 0;
    color: var(--text-secondary);
}

/* Backtest */
.backtest-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

/* Loading Spinner */
.loading {
    text-align: center;
    padding: 2rem;
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 1rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Portfolio */
.portfolio-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.summary-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.summary-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.summary-card .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }

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

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

/* Stocks Page */
.stocks-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.summary-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.summary-item h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.summary-item .count {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 2rem 0;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#page-info {
    font-weight: 500;
    color: var(--text-primary);
}

/* Positive/Negative values */
.positive {
    color: var(--success-color);
}

.negative {
    color: var(--danger-color);
}

/* Stocks Actions */
.stocks-actions {
    display: flex;
    gap: 1rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

.stocks-actions button {
    flex: 0 1 auto;
}

.btn-update {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    font-weight: 600;
}

.btn-update:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
}

/* Upload area (if needed for future drag-drop) */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    margin: 2rem 0;
    background-color: var(--bg-color);
    cursor: pointer;
    transition: all 0.3s;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: #eff6ff;
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: #dbeafe;
}

/* Strategy Builder */
.strategy-builder-page h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.strategy-builder-page > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.strategies-list-section {
    margin-bottom: 2rem;
}

.strategies-list-section h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.strategy-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.strategy-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.strategy-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.strategy-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.strategy-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1rem 0;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
}

.strategy-meta span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.strategy-meta strong {
    color: var(--text-primary);
}

.strategy-performance {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    padding: 1rem;
    background: #d1fae5;
    border-radius: 8px;
}

.strategy-performance span {
    font-size: 0.85rem;
    font-weight: 500;
    color: #065f46;
}

.strategy-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.strategy-actions button {
    flex: 1;
    padding: 0.5rem 1rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background: var(--card-bg);
    margin: 2rem auto;
    padding: 2rem;
    border-radius: 12px;
    max-width: 800px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.3s ease-out;
}

.modal-content.large {
    max-width: 1000px;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal .close {
    float: right;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s;
}

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

.modal h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    clear: both;
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.help-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Indicator Selection */
.indicator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.indicator-card {
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all 0.2s;
    cursor: pointer;
}

.indicator-card:hover {
    border-color: var(--primary-color);
    background: #eff6ff;
}

.indicator-card input[type="checkbox"] {
    margin-right: 0.5rem;
    cursor: pointer;
}

.indicator-card label {
    cursor: pointer;
    display: inline;
}

.indicator-card strong {
    color: var(--text-primary);
}

/* Indicator Parameters */
.indicator-params-group {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.indicator-params-group h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.indicator-params-group .form-group {
    margin-bottom: 1rem;
}

.indicator-params-group input[type="number"] {
    max-width: 150px;
}

/* Condition Rows */
.condition-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    flex-wrap: wrap;
}

.condition-indicator,
.condition-operator,
.condition-value,
.condition-weight {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
}

.condition-indicator {
    min-width: 150px;
    flex: 1;
}

.condition-operator {
    min-width: 150px;
}

.condition-value {
    width: 120px;
}

.condition-weight {
    width: 120px;
}

.btn-remove {
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-remove:hover {
    background-color: #dc2626;
    transform: scale(1.1);
}

/* Modal Actions */
.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Form improvements for strategy builder */
.form-section textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.2s;
}

.form-section textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-section select {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background-color: white;
    cursor: pointer;
    transition: border-color 0.2s;
}

.form-section select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-section input[type="number"],
.form-section input[type="text"] {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

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