@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --color-primary: #45d6a8;
    --color-primary-dark: #2fb98f;
    --color-primary-light: rgba(69, 214, 168, 0.1);
    --color-secondary: #FF5722;
    --color-secondary-dark: #E64A19;
    --color-success: #4CAF50;
    --color-success-light: rgba(76, 175, 80, 0.15);
    --color-warning: #FF9800;
    --color-warning-light: rgba(255, 152, 0, 0.15);
    --color-error: #F44336;
    --color-error-light: rgba(244, 67, 54, 0.15);
    --color-bg-default: #0a0e17;
    --color-bg-paper: #111827;
    --color-bg-card: #121a28;
    --color-bg-card-hover: #172131;
    --color-bg-input: #0d1321;
    --color-text-primary: #e2e8f0;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-border: #1e293b;
    --color-border-light: #2d3a52;
    --border-radius: 10px;
    --border-radius-sm: 6px;
    --border-radius-lg: 14px;
    --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);
    --transition: 0.2s ease;
}

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

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.5;
    background-color: var(--color-bg-default);
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
}

/* ===== HEADER ===== */
#app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: var(--color-bg-paper);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-title {
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-primary), #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.status-dot.connected { background: var(--color-success); box-shadow: 0 0 8px rgba(76,175,80,0.5); }
.status-dot.disconnected { background: var(--color-text-muted); }
.status-dot.error { background: var(--color-error); box-shadow: 0 0 8px rgba(244,67,54,0.5); }

.status-text {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.auth-box {
    display: flex;
    gap: 6px;
    align-items: center;
}

.auth-box input {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 10px;
    color: var(--color-text-primary);
    font-size: 13px;
    width: 130px;
    outline: none;
    transition: border-color var(--transition);
}

.auth-box input:focus {
    border-color: var(--color-primary);
}

/* Пароль-бокс: тот же стиль, что поиск/фильтры (владелец 2026-09-23:
   голые input+button резали глаза) */
.password-box {
    display: flex;
    gap: 6px;
    align-items: center;
}

.password-box input {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 12px;
    color: var(--color-text-primary);
    font-size: 13px;
    width: 150px;
    outline: none;
    transition: border-color var(--transition);
}

.password-box input:focus {
    border-color: var(--color-primary);
}

.password-box .btn-connect {
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity var(--transition), background var(--transition);
}

.password-box .btn-connect:hover {
    opacity: 0.9;
}

.password-box .btn-connect.connected {
    background: var(--color-error);
}

.password-box .btn-connect.connecting {
    background: var(--color-warning);
    cursor: not-allowed;
}

/* Чипы сортировки (как фильтры шапки) */
.sort-box {
    display: flex;
    gap: 4px;
    align-items: center;
}

.btn-sort {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 5px 10px;
    color: var(--color-text-secondary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition);
}

.btn-sort:hover {
    border-color: var(--color-primary);
    color: var(--color-text-primary);
}

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

/* Символьные карточки: композиция готова к FLIP-анимации перемещения */
.symbol-card {
    will-change: transform;
}

.search-box input, .filter-box select {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 12px;
    color: var(--color-text-primary);
    font-size: 13px;
    outline: none;
    transition: border-color var(--transition);
}

.search-box input:focus, .filter-box select:focus {
    border-color: var(--color-primary);
}

.search-box input { width: 200px; }

.btn-filter-toggle {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 12px;
    color: var(--color-text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: border-color var(--transition);
    white-space: nowrap;
}

.btn-filter-toggle:hover {
    border-color: var(--color-primary);
}

.btn-filter-toggle.active {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.filter-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: var(--color-bg-paper);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    z-index: 150;
    min-width: 150px;
    max-height: 300px;
    overflow-y: auto;
    padding: 8px;
}

.exchange-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    cursor: pointer;
    border-radius: 4px;
    transition: background var(--transition);
}

.exchange-checkbox:hover {
    background: var(--color-bg-card);
}

.exchange-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.exchange-checkbox span {
    font-size: 13px;
    color: var(--color-text-primary);
}

.exchange-checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    cursor: pointer;
    border-radius: 4px;
    transition: background var(--transition);
    white-space: nowrap;
}

.exchange-checkbox-label:hover {
    background: var(--color-bg-card);
}

.exchange-checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.exchange-checkbox-label {
    font-size: 13px;
    color: var(--color-text-primary);
}

.filter-label {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-right: 4px;
}

.filter-input {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 8px;
    color: var(--color-text-primary);
    font-size: 13px;
    width: 60px;
    outline: none;
    transition: border-color var(--transition);
}

.filter-input:focus {
    border-color: var(--color-primary);
}

#exchange-filter-box {
    position: relative;
}

.btn-terminal-header {
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-terminal-header:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 2px 8px rgba(33,150,243,0.3);
}

.btn-history {
    background: #FF9800;
}

.btn-history:hover {
    background: #F57C00;
}

.btn-history.active {
    background: #4CAF50;
    box-shadow: 0 0 12px rgba(76,175,80,0.4);
}

/* ===== TAB PANELS ===== */
.tab-panel {
    padding: 20px;
    max-width: 1600px;
    margin: 0 auto;
}

.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.tab-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.tab-status {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* ===== HISTORY TAB ===== */
.history-subtabs {
    display: flex;
    gap: 6px;
}

.btn-history-subtab {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 16px;
    color: var(--color-text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-history-subtab:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-muted);
}

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

.history-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 16px;
}

.history-select {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 10px;
    color: var(--color-text-primary);
    font-size: 13px;
    outline: none;
    min-width: 260px;
    flex: 1;
    max-width: 480px;
}

/* Текстовый поиск пары в Истории (фильтрует select + сам выбирает при вводе) */
.history-search {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 10px;
    color: var(--color-text-primary);
    font-size: 13px;
    outline: none;
    width: 180px;
    flex: 0 0 auto;
}

.history-search:focus {
    border-color: var(--color-accent, #4f8cff);
}

.history-timeframes {
    display: flex;
    gap: 4px;
    margin-left: auto;
}

.btn-history-tf {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 5px 10px;
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-history-tf:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-muted);
}

.btn-history-tf.active {
    background: var(--color-success);
    border-color: var(--color-success);
    color: #fff;
}

/* ===== HISTORY RESULTS ===== */
.history-results {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 20px;
    min-height: 200px;
}

.history-empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: 40px;
}

.history-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.history-stat {
    background: var(--color-bg-input);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    text-align: center;
}

.history-stat-label {
    font-size: 11px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.history-stat-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
}

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

.history-stat-value.negative {
    color: var(--color-error);
}

.history-chart-block {
    margin-top: 16px;
}

.history-chart-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.history-chart-container {
    width: 100%;
    height: 220px;
}

/* ===== HISTORY TOP PAIRS ===== */
.history-top-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 12px;
}

.history-top-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 14px;
    cursor: pointer;
    transition: all var(--transition);
}

.history-top-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(69,214,168,0.12);
}

.history-top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    gap: 8px;
    flex-wrap: wrap;
}

.history-top-symbol {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.history-top-strategy {
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.history-top-route {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.history-top-route .from { color: var(--color-primary); }
.history-top-route .to { color: var(--color-secondary); }

.history-top-metrics {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.history-top-chip {
    background: var(--color-bg-input);
    border-radius: var(--border-radius-sm);
    padding: 4px 8px;
    font-size: 12px;
    color: var(--color-text-secondary);
}

.history-top-chip b {
    color: var(--color-text-primary);
    font-weight: 600;
}

.history-top-count {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 6px;
}

/* Mobile for tabs */
@media (max-width: 768px) {
    .history-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .history-select {
        width: 100%;
        max-width: none;
    }
    .history-timeframes {
        margin-left: 0;
    }
    .history-top-list {
        grid-template-columns: 1fr;
    }
    .tab-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===== PINNED BAR ===== */
.pinned-bar {
    background: var(--color-bg-paper);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px;
    max-width: 1600px;
    margin: 0 auto;
}

.pinned-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.pinned-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-warning);
}

.btn-pin-clear {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-muted);
    font-size: 11px;
    padding: 4px 10px;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-pin-clear:hover {
    border-color: var(--color-error);
    color: var(--color-error);
}

.pinned-list {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.pinned-list::-webkit-scrollbar {
    height: 4px;
}

.pinned-list::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: 2px;
}

.pinned-item {
    flex-shrink: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-success);
    border-radius: var(--border-radius);
    padding: 10px 14px;
    min-width: 220px;
    max-width: 280px;
}

.pinned-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.pinned-symbol {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.btn-pin-unpin {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 14px;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    transition: all var(--transition);
}

.btn-pin-unpin:hover {
    color: var(--color-error);
    background: var(--color-error-light);
}

.pinned-exchanges {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 500;
}

.pinned-ex.from {
    color: var(--color-primary);
}

.pinned-ex.to {
    color: var(--color-secondary);
}

.pinned-arrow {
    color: var(--color-text-muted);
    font-size: 10px;
}

.pinned-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.pinned-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.pinned-label {
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.pinned-val {
    font-size: 13px;
    font-weight: 600;
}

/* Funding badge positive/negative for pinned */
.funding-badge.positive {
    color: var(--color-success);
}

.funding-badge.negative {
    color: var(--color-error);
}

/* ===== MAIN GRID ===== */
#data-container {
    padding: 16px 20px 32px;
    max-width: 1600px;
    margin: 0 auto;
}

.symbols-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

@media (max-width: 1200px) {
    .symbols-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .symbols-grid { grid-template-columns: 1fr; }
    #app-header { flex-direction: column; gap: 12px; padding: 12px 16px; }
    .header-right { flex-wrap: wrap; width: 100%; }
    .search-box input { width: 100%; }
    .pinned-bar { padding: 10px 16px; }
    .pinned-list { gap: 8px; }
    .pinned-item { min-width: 180px; max-width: 220px; padding: 8px 10px; }
    .pinned-metrics { grid-template-columns: repeat(2, 1fr); gap: 4px; }
    .pinned-symbol { font-size: 12px; }
    .pinned-val { font-size: 12px; }
    .filter-input { width: 50px; }
}

/* ===== SYMBOL CARD ===== */
.symbol-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.25s ease;
}

.symbol-card:hover:not(.expanded) {
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.12);
    transform: translateY(-2px);
}

.symbol-card.expanded {
    grid-column: 1 / -1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.04), transparent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.symbol-card.expanded .card-header {
    border-bottom-color: var(--color-border);
}

.card-symbol {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.card-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--color-text-secondary);
    flex-wrap: wrap;
    align-items: center;
}

.card-count {
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
}

.card-profitable {
    color: var(--color-success);
    font-weight: 500;
}

.card-range {
    color: var(--color-warning);
    font-weight: 500;
}

.card-toggle {
    font-size: 12px;
    color: var(--color-text-muted);
    transition: transform 0.3s ease;
}

.symbol-card.expanded .card-toggle {
    transform: rotate(180deg);
}

/* ===== CARD BODY ===== */
.card-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.symbol-card.expanded .card-body {
    max-height: 5000px;
}

.card-body-inner {
    padding: 10px;
}

/* ===== PAIR ITEM — unified style ===== */
.pair-item {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 10px;
    margin-bottom: 8px;
    transition: all var(--transition);
}

.pair-item:hover {
    border-color: var(--color-border-light);
}

.pair-item.locked {
    border-color: var(--color-success);
    background: var(--color-success-light);
}

.pair-row-main {
    display: grid;
    grid-template-columns: minmax(210px, 1.5fr) repeat(5, minmax(100px, 1fr));
    gap: 6px;
    align-items: center;
    margin-bottom: 6px;
}

.pair-exchanges {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    font-size: 13px;
    flex-wrap: wrap;
}

.strategy-badge {
    flex-basis: 100%;
    width: fit-content;
    color: var(--color-text-muted);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.exchange-from {
    color: var(--color-primary);
}

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

.exchange-to {
    color: var(--color-secondary);
}

/* Unified badge style */
.spread-badge,
.funding-badge {
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    justify-self: center;
    padding: 3px 6px;
    border-radius: 4px;
    background: transparent;
}

.spread-badge.high, .funding-badge.high { color: var(--color-success); }
.spread-badge.medium, .funding-badge.medium { color: var(--color-warning); }
.spread-badge.low, .funding-badge.low { color: var(--color-error); }

/* Net funding positive/negative */
.funding-badge.positive { color: var(--color-success); }
.funding-badge.negative { color: var(--color-error); }

/* Next payout */
.next-payout {
    font-size: 12px;
    color: var(--color-text-muted);
    text-align: center;
    justify-self: center;
}

.pair-row-secondary {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.pair-row-secondary span {
    white-space: nowrap;
}

.pair-price-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    text-align: center;
}

.pair-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Remove btn-terminal styles */
.btn-pair {
    padding: 5px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    background: transparent;
    color: var(--color-text-primary);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all var(--transition);
}

.btn-pair:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.btn-pair.active {
    border-color: var(--color-success);
    color: var(--color-success);
    background: var(--color-success-light);
}

.btn-pair.btn-chart {
    font-size: 12px;
}

.btn-pair.btn-calc.active {
    border-color: var(--color-warning);
    color: var(--color-warning);
    background: var(--color-warning-light);
}

/* ===== POSITION CALCULATOR ===== */
.pair-calc {
    margin-top: 8px;
    padding: 10px;
    border: 1px dashed var(--color-border-light);
    border-radius: var(--border-radius-sm);
    background: rgba(255,255,255,0.02);
}

.pair-calc-inputs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.pair-calc-field {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.pair-calc-field span {
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.pair-calc-field input {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 5px 8px;
    color: var(--color-text-primary);
    font-size: 13px;
    width: 130px;
    outline: none;
    transition: border-color var(--transition);
}

.pair-calc-field input:focus {
    border-color: var(--color-primary);
}

.pair-calc-results {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 10px;
    font-size: 12px;
    color: var(--color-text-secondary);
}

.pair-calc-result {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.pair-calc-result .pair-calc-result-label {
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.pair-calc-result .pair-calc-result-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.pair-calc-result-value.positive {
    color: var(--color-success);
}

.pair-calc-result-value.negative {
    color: var(--color-error);
}

.pair-calc-hint {
    margin-top: 6px;
    font-size: 11px;
    color: var(--color-text-muted);
}

@media (max-width: 768px) {
    .pair-calc-inputs {
        flex-direction: column;
        align-items: stretch;
    }
    .pair-calc-field input {
        width: 100%;
    }
}

/* Price columns */
.pair-row-prices {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    padding: 8px 0 4px;
    border-top: 1px solid var(--color-border-light);
    margin-top: 4px;
}

.price-column-title {
    font-size: 10px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.price-column {
    display: flex;
    flex-direction: column;
    gap: 1px;
    font-size: 12px;
    padding: 6px 8px;
    border-radius: 6px;
    background: rgba(255,255,255,.025);
}

/* Mobile */
@media (max-width: 768px) {
    .pair-item {
        padding: 10px;
    }
    .pair-row-main {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 6px;
    }
    .pair-exchanges {
        justify-content: center;
    }
    .strategy-badge { width: 100%; }
    .pair-row-secondary {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 4px;
    }
    .pair-actions {
        justify-content: center;
    }
    .pair-row-prices {
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== CHART CONTAINER ===== */
.pair-chart-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.pair-chart-container.visible {
    max-height: 300px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.chart-container {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.chart-container canvas {
    display: block;
}

.chart-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-muted);
    font-size: 13px;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--color-text-muted);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
}

.empty-state p {
    font-size: 14px;
}

/* ===== POPUP ===== */
#popupContainer {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 300px;
}

.popup {
    margin: 0.5rem 0;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    color: #fff;
    background-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
    transition: opacity 0.5s ease;
}

/* ===== SETTINGS PANEL ===== */
#settings-button {
    display: none;
}

#settings-container {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: var(--color-bg-paper);
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    overflow-y: auto;
    padding: 24px;
    transition: right 0.3s ease;
}

#settings-container.show {
    right: 0;
}

#settings-container h2 {
    font-size: 16px;
    font-weight: 600;
    margin: 20px 0 12px;
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 8px;
}

#settings-container h2:first-child {
    margin-top: 0;
}

.row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.row.fw {
    width: 100%;
}

.row input[type="text"],
.row input[type="number"] {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 6px 10px;
    color: var(--color-text-primary);
    font-size: 13px;
    outline: none;
    width: 100%;
    transition: border-color var(--transition);
}

.row input:focus {
    border-color: var(--color-primary);
}

.row button {
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 6px 14px;
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.row button:hover {
    background: var(--color-primary-dark);
}

.column {
    flex: 1;
    min-width: 200px;
}

.r200 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
}

.r200 > span:first-child {
    color: var(--color-text-secondary);
    font-size: 13px;
}

.top-line {
    border-top: 1px solid var(--color-border);
    padding-top: 10px;
    margin-top: 6px;
}

.w100 {
    width: 100%;
}

.disconnected { color: var(--color-error); }
.connected { color: var(--color-success); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: 3px;
}

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

/* ===== PRICE COLUMNS (вход/выход) ===== */
.pair-row-prices {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 8px 0 4px;
    border-top: 1px solid var(--color-border-light);
    margin-top: 4px;
}

.price-column-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.pair-row-main {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* Δ вх/вых — подсветка */
[data-field="deltaVhodVyhod"] {
    font-weight: 600;
}

/* Мобильная адаптация: 2 колонки вместо 4 */
@media (max-width: 768px) {
    .pair-row-prices {
        grid-template-columns: 1fr 1fr;
    }
}

/* Заглушка «Загрузка данных…» — до первого arb-среза после логина */
.loading-spin {
    animation: loading-pulse 1.6s ease-in-out infinite;
}
@keyframes loading-pulse {
    0%, 100% { opacity: 0.35; transform: scale(0.96); }
    50% { opacity: 1; transform: scale(1.04); }
}