:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #475569;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1a1f3a 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

section {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

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

.config-item {
    display: flex;
    flex-direction: column;
}

.config-item label {
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

.config-item input,
.config-item select {
    padding: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
}

.config-item input:focus,
.config-item select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.config-item small {
    margin-top: 5px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.config-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.config-item a:hover {
    text-decoration: underline;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-right: 10px;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(99, 102, 241, 0.4);
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(239, 68, 68, 0.4);
}

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

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

.stat-card {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-change {
    font-size: 0.85rem;
}

.stat-change.positive {
    color: var(--success-color);
}

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

.positions-container {
    display: grid;
    gap: 15px;
}

.position-card {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.position-card.long {
    border-left-color: var(--success-color);
}

.position-card.short {
    border-left-color: var(--danger-color);
}

.position-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.position-symbol {
    font-size: 1.3rem;
    font-weight: 700;
}

.position-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.position-badge.long {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.position-badge.short {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.position-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
}

.position-detail {
    display: flex;
    flex-direction: column;
}

.position-detail-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.position-detail-value {
    font-weight: 600;
    font-size: 1rem;
}

.position-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.chart-container {
    position: relative;
    height: 400px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 15px;
}

.activity-log {
    max-height: 400px;
    overflow-y: auto;
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 15px;
}

.log-entry {
    padding: 10px;
    margin-bottom: 8px;
    border-radius: 4px;
    border-left: 3px solid;
    font-size: 0.9rem;
}

.log-entry.info {
    background: rgba(99, 102, 241, 0.1);
    border-left-color: var(--primary-color);
}

.log-entry.success {
    background: rgba(16, 185, 129, 0.1);
    border-left-color: var(--success-color);
}

.log-entry.error {
    background: rgba(239, 68, 68, 0.1);
    border-left-color: var(--danger-color);
}

.log-entry.warning {
    background: rgba(245, 158, 11, 0.1);
    border-left-color: var(--warning-color);
}

.log-timestamp {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-right: 10px;
}

.analysis-content {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 20px;
    white-space: pre-wrap;
    line-height: 1.8;
}

.analysis-section {
    font-size: 0.95rem;
}

.analysis-timestamp {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-tertiary);
    border-radius: 8px;
    overflow: hidden;
}

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

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

tbody tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px;
    font-style: italic;
}

.profit {
    color: var(--success-color);
    font-weight: 600;
}

.loss {
    color: var(--danger-color);
    font-weight: 600;
}

.long-badge {
    color: var(--success-color);
    font-weight: 600;
}

.short-badge {
    color: var(--danger-color);
    font-weight: 600;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 1.8rem;
    }

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

    .chart-container {
        height: 300px;
    }
}

/* Authentication Modal */
.modal {
    display: flex;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    max-width: 450px;
    width: 90%;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-content h2 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 1.8rem;
    border-bottom: none;
}

.modal-content p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

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

.form-group input {
    padding: 12px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.auth-note {
    text-align: center;
    font-size: 0.85rem;
    color: var(--warning-color);
    margin-top: 10px;
}

.auth-error {
    margin-top: 15px;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: 6px;
    color: var(--danger-color);
    font-size: 0.9rem;
    display: none;
}

.auth-error.show {
    display: block;
}

/* Lock Button */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.btn-lock {
    padding: 10px 20px;
    background: rgba(239, 68, 68, 0.2);
    border: 2px solid var(--danger-color);
    border-radius: 8px;
    color: var(--danger-color);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-lock:hover {
    background: var(--danger-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(239, 68, 68, 0.3);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .modal-content {
        padding: 30px 20px;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .btn-lock {
        width: 100%;
    }
}