:root {
    --bg: #090d16;
    --surface: #111827;
    --surface-hover: #1f2937;
    --surface-tint: #0d1420;
    --border: #1f293d;
    --border-soft: rgba(148, 163, 184, 0.1);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.2);
    --green: #10b981;
    --red: #ef4444;
    --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body.light-mode {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --surface-tint: #f4f6fa;
    --border: #e2e8f0;
    --border-soft: rgba(15, 23, 42, 0.06);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --accent: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.1);
    --green: #059669;
    --red: #dc2626;
    --card-shadow: 0 4px 15px -1px rgba(0, 0, 0, 0.07);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text-main);
    min-height: 100vh;
    padding: 1.5rem;
    line-height: 1.5;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid var(--border-soft);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    background-color: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--green);
    display: inline-block;
}

h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    background: var(--surface-hover);
    color: var(--accent);
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.sync-status {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.icon {
    width: 15px;
    height: 15px;
    display: inline-block;
    vertical-align: -2px;
    flex-shrink: 0;
}

.icon-sm {
    width: 13px;
    height: 13px;
    display: inline-block;
    vertical-align: -1px;
    flex-shrink: 0;
}

.action-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: background 0.15s, border-color 0.15s;
}

.action-btn:hover {
    background: var(--surface-hover);
    border-color: var(--accent);
}

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

.auto-refresh-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.4rem 0.65rem;
    border-radius: 6px;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, color 0.15s;
}

.auto-refresh-label:hover {
    background: var(--surface-hover);
    color: var(--text-main);
}

.auto-refresh-label:has(input:checked) {
    background: color-mix(in srgb, var(--accent) 12%, var(--surface));
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.auto-refresh-label input[type="checkbox"] {
    accent-color: var(--accent);
    cursor: pointer;
}

.spinning {
    display: inline-block;
    animation: spin 0.75s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.theme-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: background 0.15s;
}

.theme-btn:hover {
    background: var(--surface-hover);
}

/* Beginner Guide & Explanations Drawer */
.guide-drawer {
    background: var(--surface-tint);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 1.25rem;
    animation: slideDown 0.2s ease;
}

.guide-drawer.collapsed {
    display: none;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.guide-card {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.guide-card-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.guide-card p {
    font-size: 0.8rem;
    line-height: 1.45;
    color: var(--text-muted);
    margin: 0;
}

.guide-card p strong {
    color: var(--text-main);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Contextual Info Tooltips */
.info-tip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 13px;
    height: 13px;
    font-size: 0.6rem;
    font-family: var(--font-mono);
    font-style: normal;
    font-weight: 600;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: help;
    position: relative;
    margin-left: 0.2rem;
    vertical-align: top;
    top: -2px;
    line-height: 1;
    text-align: center;
    box-sizing: border-box;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
    user-select: none;
}

.info-tip:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--surface-hover);
}

.info-tip::after {
    content: attr(data-tip);
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 0.55rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
    white-space: normal;
    width: max-content;
    max-width: 240px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s;
    z-index: 1000;
    line-height: 1.35;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.info-tip:hover::after,
.info-tip:focus::after {
    opacity: 1;
    visibility: visible;
}

/* Dynamic Filter Hint */
.filter-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.45rem 0.75rem;
    margin-top: 0.6rem;
    line-height: 1.4;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.filter-hint strong {
    color: var(--text-main);
}

/* Stats KPI Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
}

.stat-card {
    background: var(--surface-tint);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    position: relative;
    transition: border-color 0.15s, background 0.15s;
}

.stat-card:hover {
    border-color: var(--border);
    background: var(--surface);
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0.85rem;
    left: 0;
    width: 3px;
    height: calc(100% - 1.7rem);
    background: var(--accent);
    border-radius: 0 3px 3px 0;
    opacity: 0.7;
}

.stat-card.green::before { background: var(--green); }
.stat-card.red::before { background: var(--red); }

.stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1.85rem;
    font-weight: 700;
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.03em;
}

.stat-subtext {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

/* Controls Panel */
.controls-card {
    background: var(--surface-tint);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.controls-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    flex: 1;
    min-width: 140px;
}

label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

select {
    appearance: none;
    -webkit-appearance: none;
    background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%239ca3af' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 0.75rem center;
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 0.55rem 2.1rem 0.55rem 0.8rem;
    border-radius: 7px;
    font-size: 0.875rem;
    font-weight: 500;
    outline: none;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s, background-color 0.15s;
}

select:hover {
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--surface-hover);
}

body.light-mode select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

/* Fast Currency Chips */
.currency-chips {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 0.25rem;
    transition: opacity 0.15s ease;
}

.currency-chips.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.chip-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-right: 0.25rem;
}

.chip {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.1s;
}

.chip:hover {
    color: var(--text-main);
    border-color: var(--accent);
}

.chip.active {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    font-weight: 600;
}

/* Chart Area */
.chart-card {
    background: var(--surface-tint);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 1.25rem;
    position: relative;
    min-height: 420px;
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.chart-title {
    font-size: 0.95rem;
    font-weight: 600;
}

.chart-range-picker {
    display: flex;
    gap: 0.25rem;
    background: var(--surface);
    padding: 0.2rem;
    border-radius: 7px;
    border: 1px solid var(--border-soft);
}

.range-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.1s ease;
}

.range-btn:hover {
    color: var(--text-main);
}

.range-btn.active {
    background: var(--accent);
    color: #ffffff;
    font-weight: 600;
}

.chart-wrapper {
    position: relative;
    flex: 1;
    width: 100%;
    height: 380px;
}

/* State messages */
.overlay-msg {
    position: absolute;
    inset: 0;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--surface);
    color: var(--text-muted);
    gap: 0.5rem;
    font-size: 0.9rem;
    z-index: 10;
}

.overlay-msg.active {
    display: flex;
}

/* Orders Table Section */
.orders-card {
    background: var(--surface-tint);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.orders-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.orders-title-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.orders-title {
    font-size: 0.95rem;
    font-weight: 600;
}

.orders-search-wrapper {
    flex: 1;
    max-width: 320px;
    min-width: 200px;
}

.orders-search-wrapper input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.15s;
}

.orders-search-wrapper input:focus {
    border-color: var(--accent);
}

.orders-filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.filter-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.filter-item label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}

.filter-item select {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

.pending-toggle-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.3rem 0.65rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.15s ease;
}

.pending-toggle-btn:hover {
    background: var(--surface-hover);
    color: var(--text-main);
    border-color: var(--accent);
}

.pending-toggle-btn.active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green);
    border-color: var(--green);
}

.orders-table-wrapper {
    overflow-x: auto;
    width: 100%;
}

.orders-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.orders-table th {
    padding: 0.6rem 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.orders-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

.orders-table th.sortable:hover {
    color: var(--text-main);
}

.sort-icon {
    font-size: 0.7rem;
    margin-left: 0.25rem;
    opacity: 0.35;
}

.orders-table th.sorted .sort-icon {
    opacity: 1;
    color: var(--accent);
}

.order-id-cell {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.copy-id-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0.1rem 0.25rem;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
    line-height: 1;
}

.copy-id-btn:hover {
    background: var(--surface-hover);
    color: var(--text-main);
}

.copy-id-btn.copied {
    color: var(--green);
}

.orders-table td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--border-soft);
    white-space: nowrap;
    vertical-align: middle;
    font-variant-numeric: tabular-nums;
}

.orders-table tbody tr {
    transition: background 0.1s;
}

.orders-table tbody tr:hover {
    background: var(--surface-hover);
}

.table-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem !important;
}

.font-mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}
.text-bold { font-weight: 600; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.75rem; }

.premium-pos { color: var(--green); font-weight: 600; }
.premium-neg { color: var(--red); font-weight: 600; }

.badge-buy {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green);
    border-color: rgba(16, 185, 129, 0.3);
}

.badge-sell {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent);
    border-color: rgba(59, 130, 246, 0.3);
}

.badge-status {
    font-size: 0.7rem;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    font-family: var(--font-mono);
    display: inline-block;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-expired, .badge-canceled {
    background: var(--surface-hover);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.platform-tag {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.orders-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.pagination-buttons {
    display: flex;
    gap: 0.5rem;
}

.page-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.15s;
}

.page-btn:hover:not(:disabled) {
    background: var(--surface-hover);
    border-color: var(--accent);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Footer */
footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0.5rem 0;
    border-top: 1px solid var(--border);
    font-family: var(--font-mono);
}

@media (max-width: 768px) {
    body { padding: 1rem; }
    header { flex-direction: column; align-items: stretch; gap: 0.75rem; }
    .header-actions { justify-content: space-between; }
    .controls-row { flex-direction: column; align-items: stretch; }
    .chart-wrapper { height: 300px; }
    .orders-header { flex-direction: column; align-items: stretch; }
    .orders-search-wrapper { max-width: 100%; }
    .orders-footer { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
}

/* 2005 Corner Easter Egg Badge */
.corner-vapor-badge {
    position: fixed;
    bottom: 16px;
    right: 18px;
    z-index: 990;
    opacity: 0.65;
    transition: opacity 0.2s ease, transform 0.2s ease, filter 0.2s ease;
    display: inline-block;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
    transform: rotate(-3deg);
}

.corner-vapor-badge:hover {
    opacity: 1;
    transform: scale(1.1) rotate(0deg);
    filter: drop-shadow(0 4px 12px rgba(255, 0, 127, 0.5));
}