/* ===== OptiMax Scanner - Professional Dark Finance Theme ===== */

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a1f2e;
    --bg-card-hover: #222839;
    --bg-input: #151a28;
    --border-color: #2a3040;
    --border-hover: #3a4565;
    --text-primary: #e8eaed;
    --text-secondary: #8b95a5;
    --text-muted: #5a6577;
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-green: #10b981;
    --accent-green-dim: #065f46;
    --accent-red: #ef4444;
    --accent-red-dim: #7f1d1d;
    --accent-yellow: #f59e0b;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* ===== Header ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.15rem;
}

.logo-icon {
    color: var(--accent-blue);
    font-size: 1.3rem;
}

.logo-text {
    color: var(--text-primary);
}

.logo-tag {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.85rem;
}

.nav-tabs {
    display: flex;
    gap: 0.25rem;
}

.nav-tab {
    padding: 0.5rem 1.25rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.nav-tab:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-tab.active {
    color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
}

.market-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-red);
}

.status-dot.open {
    background: var(--accent-green);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.api-key-btn {
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.api-key-btn:hover {
    color: var(--text-primary);
}

/* ===== Main Content ===== */
.main-content {
    padding: 1.25rem 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

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

/* ===== Controls Bar ===== */
.controls-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    align-items: flex-end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.control-group label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.control-group input,
.control-group select {
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: var(--font-sans);
    min-width: 100px;
    transition: border-color 0.2s;
}

.control-group input:focus,
.control-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.market-toggle {
    display: flex;
    gap: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.market-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-input);
    border: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border-right: 1px solid var(--border-color);
}

.market-btn:last-child {
    border-right: none;
}

.market-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.market-btn.active {
    background: var(--accent-blue);
    color: white;
}

.scan-btn-group {
    margin-left: auto;
}

.scan-btn {
    padding: 0.6rem 1.5rem;
    background: var(--accent-blue);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.scan-btn:hover {
    background: var(--accent-blue-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.scan-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.scan-btn.scanning {
    background: var(--accent-yellow);
    color: #000;
}

/* ===== Stats Bar ===== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.stat-card {
    padding: 0.85rem 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.stat-value {
    font-size: 1.35rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.stat-value.highlight-green {
    color: var(--accent-green);
}

.stat-value.highlight-red {
    color: var(--accent-red);
}

/* ===== Progress Bar ===== */
.progress-container {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.progress-bar {
    height: 6px;
    background: var(--bg-input);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

/* ===== Results Section ===== */
.results-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.results-header h2 {
    font-size: 1rem;
    font-weight: 600;
}

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

.action-btn {
    padding: 0.4rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

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

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.results-table thead th {
    padding: 0.65rem 0.75rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    transition: color 0.2s;
}

.results-table thead th:hover {
    color: var(--accent-blue);
}

.results-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background 0.15s;
}

.results-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.results-table tbody td {
    padding: 0.6rem 0.75rem;
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.results-table .ticker-cell {
    font-weight: 600;
    color: var(--accent-blue);
    cursor: pointer;
}

.results-table .ticker-cell:hover {
    text-decoration: underline;
}

.results-table .gain-positive {
    color: var(--accent-green);
    font-weight: 600;
}

.results-table .gain-negative {
    color: var(--accent-red);
}

.results-table .score-high {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
}

.results-table .score-medium {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-yellow);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
}

.results-table .score-low {
    color: var(--text-muted);
    padding: 0.2rem 0.5rem;
}

.results-table .market-badge {
    font-size: 0.68rem;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-weight: 600;
    font-family: var(--font-sans);
}

.results-table .market-us {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.results-table .market-sgx {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

.results-table .strategy-badge {
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-family: var(--font-sans);
    font-weight: 500;
    background: rgba(6, 182, 212, 0.12);
    color: var(--accent-cyan);
}

.detail-btn {
    padding: 0.25rem 0.6rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.detail-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.star-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.star-btn:hover,
.star-btn.starred {
    color: var(--accent-yellow);
}

/* Empty state */
.empty-state {
    padding: 3rem 2rem;
    text-align: center;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.empty-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.empty-row td {
    border-bottom: none !important;
}

/* ===== Watchlist ===== */
.watchlist-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.watchlist-header h2 {
    font-size: 1.1rem;
}

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

.watchlist-actions input {
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 220px;
}

.watchlist-actions input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.watchlist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
}

.watchlist-card {
    padding: 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.watchlist-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-sm);
}

.watchlist-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.watchlist-card-ticker {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.watchlist-card-price {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
}

.watchlist-card-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.35rem;
    font-size: 0.78rem;
}

.watchlist-detail-label {
    color: var(--text-muted);
}

.watchlist-detail-value {
    text-align: right;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.watchlist-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.2s;
}

.watchlist-remove:hover {
    color: var(--accent-red);
}

/* ===== Strategies ===== */
.strategies-section {
    margin-bottom: 2rem;
}

.strategies-section h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.strategy-builder {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.strategy-input-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    align-items: flex-end;
}

.strategy-results {
    padding: 1.25rem;
    min-height: 200px;
}

.strategy-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.strat-result-card {
    padding: 0.85rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.strat-result-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.strat-result-value {
    font-size: 1.15rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.payoff-diagram {
    width: 100%;
    height: 250px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    position: relative;
}

.strategy-guide {
    margin-top: 1.5rem;
}

.strategy-guide h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.75rem;
}

.guide-card {
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.guide-card h4 {
    font-size: 0.85rem;
    margin-bottom: 0.65rem;
}

.guide-card.bullish h4 { color: var(--accent-green); }
.guide-card.bearish h4 { color: var(--accent-red); }
.guide-card.neutral h4 { color: var(--accent-yellow); }

.guide-card ul {
    list-style: none;
    padding: 0;
}

.guide-card li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.3rem 0;
    line-height: 1.4;
}

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

/* ===== Settings ===== */
.settings-section h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
}

.settings-card {
    padding: 1.25rem;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.settings-card h3 {
    font-size: 0.9rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.setting-item {
    margin-bottom: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.setting-item label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.setting-item input,
.setting-item select {
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-sans);
}

.setting-item input:focus,
.setting-item select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.setting-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ===== Modal ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 200;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.modal-overlay.open {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-content.modal-small {
    max-width: 500px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1rem;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

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

.modal-body {
    padding: 1.25rem;
}

.api-providers {
    display: grid;
    gap: 0.75rem;
    margin: 1rem 0;
}

.api-provider {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.api-provider h4 {
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: 0.25rem;
}

.api-provider p {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* ===== Detail Modal - Options Chain ===== */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.detail-item {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.detail-item-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-item-value {
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-mono);
    margin-top: 0.2rem;
}

/* ===== Toast ===== */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
    max-width: 400px;
}

.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error { border-left: 3px solid var(--accent-red); }
.toast.info { border-left: 3px solid var(--accent-blue); }
.toast.warning { border-left: 3px solid var(--accent-yellow); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* ===== Loading Spinner ===== */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-muted);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .stats-bar {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        flex-wrap: wrap;
        height: auto;
        padding: 0.75rem;
        gap: 0.5rem;
    }

    .header-center {
        order: 3;
        width: 100%;
    }

    .nav-tabs {
        width: 100%;
        justify-content: center;
    }

    .controls-bar {
        flex-direction: column;
    }

    .scan-btn-group {
        margin-left: 0;
        width: 100%;
    }

    .scan-btn {
        width: 100%;
        justify-content: center;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }

    .main-content {
        padding: 0.75rem;
    }

    .results-table {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .stats-bar {
        grid-template-columns: 1fr;
    }

    .nav-tab {
        padding: 0.4rem 0.75rem;
        font-size: 0.78rem;
    }
}