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

:root {
    --bg: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --border: #30363d;
    --text: #c9d1d9;
    --text-muted: #8b949e;
    --text-bright: #f0f6fc;
    --primary: #58a6ff;
    --primary-hover: #79c0ff;
    --success: #3fb950;
    --success-bg: #0d3320;
    --danger: #f85149;
    --danger-bg: #3d1214;
    --danger-hover: #ff7b72;
    --warning: #d29922;
    --warning-bg: #3d2e00;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --transition: 150ms ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* ========== Navbar ========== */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 56px;
    gap: 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    flex-shrink: 0;
}

.nav-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-bright) !important;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-link {
    padding: 6px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted) !important;
    transition: all var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-bright) !important;
    background: var(--bg-tertiary);
}

.nav-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-stats {
    font-size: 13px;
    color: var(--text-muted);
}

.nav-stats strong {
    color: var(--text-bright);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    background: var(--bg-tertiary);
    color: var(--text);
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
}

.btn:hover {
    background: var(--border);
    border-color: var(--text-muted);
}

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-success {
    background: #238636;
    border-color: #2ea043;
    color: #fff;
}
.btn-success:hover { background: #2ea043; }

.btn-danger {
    background: #da3633;
    border-color: #f85149;
    color: #fff;
}
.btn-danger:hover { background: #f85149; }

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

.btn-danger-outline {
    background: transparent;
    border-color: var(--danger);
    color: var(--danger);
}
.btn-danger-outline:hover {
    background: var(--danger-bg);
}

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text-muted);
}
.btn-outline:hover {
    color: var(--text);
    border-color: var(--text-muted);
}

/* ========== Forms ========== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input, .form-select {
    padding: 8px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--transition);
    width: 100%;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.15);
}

.form-select-sm { padding: 4px 8px; font-size: 12px; }

.form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.form-check {
    margin-bottom: 12px;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text);
    cursor: pointer;
}

.chain-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ========== Modal ========== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 560px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 16px;
    color: var(--text-bright);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}
.modal-close:hover { color: var(--text); }

.modal-body { padding: 20px; }
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

.hidden { display: none !important; }

/* ========== Container ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-left h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-bright);
}

/* ========== Badges ========== */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: #0c2d6b; color: var(--primary); }

.badge-running {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ========== Stats Bar ========== */
.stats-bar {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.stat-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-bright);
    font-variant-numeric: tabular-nums;
}

.stat-highlight { color: var(--success) !important; }

/* ========== Wallet Grid ========== */
.wallet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
}

.wallet-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color var(--transition);
}

.wallet-card:hover {
    border-color: var(--primary);
}

.wallet-chain {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.chain-ETH { background: #e8f4fd; color: #1a73e8; }
.chain-BSC { background: #fef3c7; color: #b45309; }
.chain-POLYGON { background: #f3e8ff; color: #7c3aed; }
.chain-ARBITRUM { background: #d1fae5; color: #065f46; }
.chain-OPTIMISM { background: #fee2e2; color: #991b1b; }
.chain-BASE { background: #dbeafe; color: #1e40af; }
.chain-AVALANCHE { background: #ffe4e6; color: #be123c; }
.chain-FANTOM { background: #e0e7ff; color: #3730a3; }
.chain-BTC { background: #fff7ed; color: #c2410c; }
.chain-TRX { background: #fce7f3; color: #9d174d; }

.wallet-balance {
    font-size: 28px;
    font-weight: 700;
    color: var(--success);
}

.wallet-balance-usd {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.wallet-detail {
    display: grid;
    gap: 8px;
}

.detail-row {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.detail-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: 12px;
    font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
    color: var(--text);
    word-break: break-all;
    background: var(--bg);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
}

.wallet-mnemonic {
    font-size: 11px;
    font-family: monospace;
    color: var(--warning);
    background: var(--bg);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    word-break: break-all;
    margin-top: 4px;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.empty-state p {
    margin-bottom: 20px;
}

/* ========== Worker Table ========== */
.worker-table-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.worker-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.worker-table th {
    text-align: left;
    padding: 10px 14px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.worker-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.worker-table tr:last-child td {
    border-bottom: none;
}

.worker-table tbody tr:hover {
    background: rgba(255,255,255,0.02);
}

.worker-table tbody tr.empty-row td {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.worker-name {
    font-weight: 600;
    color: var(--text-bright);
}

.worker-strategy {
    font-size: 11px;
    color: var(--text-muted);
}

.chain-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

.chain-tag {
    padding: 1px 6px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.status-dot {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.status-dot::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-running::before {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
    animation: pulse 2s infinite;
}

.status-stopped::before {
    background: var(--text-muted);
}

/* ========== Batch Bar ========== */
.batch-bar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    z-index: 150;
    font-size: 13px;
}

/* ========== Login Page ========== */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
}

.login-container {
    width: 400px;
    max-width: 90vw;
}

.login-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-header h1 {
    font-size: 24px;
    color: var(--text-bright);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 14px;
}

.login-card .form-group {
    margin-bottom: 16px;
}

/* ========== Language Switch ========== */
.btn-lang {
    background: transparent;
    border-color: var(--border);
    color: var(--text-muted);
    font-size: 12px;
    padding: 4px 10px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-family: inherit;
}
.btn-lang:hover {
    color: var(--text);
    border-color: var(--text-muted);
}

.lang-bar {
    text-align: center;
    margin-top: 16px;
}

/* ========== Alert ========== */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 13px;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 81, 73, 0.3);
}

/* ========== Animations ========== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.wallet-card {
    animation: fadeIn 0.3s ease;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .container { padding: 16px; }
    .stats-bar { flex-direction: column; }
    .wallet-grid { grid-template-columns: 1fr; }
    .worker-table { font-size: 11px; }
    .worker-table th, .worker-table td { padding: 8px 6px; }
    .nav-links { display: none; }
}