/* ═══════════════════════════════════════════════════════════
   ShadowTrader Charts — Dashboard CSS
   Dark theme inspired by TradingView
   ═══════════════════════════════════════════════════════════ */

:root {
    --bg-primary:   #131722;
    --bg-secondary: #1e222d;
    --bg-tertiary:  #2a2e39;
    --border:       #363a45;
    --text-primary: #d1d4dc;
    --text-muted:   #787b86;
    --green:        #26a69a;
    --red:          #ef5350;
    --blue:         #2196F3;
    --orange:       #FF9800;
}

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

html, body {
    height: 100%;
    background: var(--bg-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}

body {
    display: flex;
    flex-direction: column;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* Allow chart panes to handle touch properly */
.chart-container { touch-action: none; }

/* ── Header ────────────────────────────────────────────── */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    color: var(--green);
    font-size: 18px;
}

.logo-text {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.controls label {
    color: var(--text-muted);
    font-size: 12px;
}

.controls select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--red);
    flex-shrink: 0;
}

.status-dot.connected {
    background: var(--green);
}

/* ── Chart Grid ────────────────────────────────────────── */
.chart-grid {
    display: grid;
    gap: 1px;
    background: var(--bg-tertiary);
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.grid-1 { grid-template-columns: 1fr; grid-template-rows: 1fr; }
.grid-2 { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr; }
.grid-4 { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }
.grid-6 { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, 1fr); }
.grid-8 { grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(2, 1fr); }

/* ── Chart Pane ────────────────────────────────────────── */
.chart-pane {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    overflow: hidden;
    position: relative;
}

.pane-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    flex-wrap: wrap;
}

.pane-header select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 11px;
    cursor: pointer;
    max-width: 110px;
}

.ind-wrapper {
    position: relative;
}

.ind-trigger {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 11px;
    cursor: pointer;
    line-height: 1.4;
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.ind-trigger:hover,
.ind-trigger.active {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.ind-popup {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 0;
    min-width: 140px;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

.ind-popup.hidden { display: none; }

.ind-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    font-size: 12px;
    color: var(--text-primary);
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.1s;
}

.ind-option:hover {
    background: var(--bg-tertiary);
}

.ind-option input[type="checkbox"] {
    accent-color: var(--green);
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.ind-swatch {
    width: 12px;
    height: 3px;
    border-radius: 2px;
    flex-shrink: 0;
}

.ind-swatch.ith-itl-swatch {
    background: linear-gradient(90deg, #2962FF 50%, #FF1744 50%);
}

/* ── Ticker Bar ────────────────────────────────────────── */
.ticker-bar {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ticker-price {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 14px;
    font-weight: 700;
    padding: 1px 10px;
    border-radius: 3px;
    min-width: 80px;
    text-align: right;
    transition: color 0.2s;
}

.ticker-price.up   { color: var(--green); }
.ticker-price.down { color: var(--red); }

.ticker-spread {
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* Flash animations */
.flash-green { animation: flashGreen 0.6s ease-out; }
.flash-red   { animation: flashRed   0.6s ease-out; }

@keyframes flashGreen {
    0%   { background-color: rgba(38,166,154,0.55); }
    100% { background-color: transparent; }
}
@keyframes flashRed {
    0%   { background-color: rgba(239,83,80,0.55); }
    100% { background-color: transparent; }
}

/* ── No-data overlay ──────────────────────────────────── */
.no-data {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 13px;
    pointer-events: none;
    z-index: 2;
}

.no-data.hidden { display: none; }

/* ── Chart container ──────────────────────────────────── */
.chart-container {
    flex: 1;
    min-height: 0;
    position: relative;
}

/* ── Responsive ───────────────────────────────────────── */

/* Tablet landscape */
@media (max-width: 1100px) {
    .grid-8 {
        grid-template-columns: repeat(3, 1fr) !important;
        grid-template-rows: repeat(3, 1fr) !important;
    }
}

/* Tablet portrait */
@media (max-width: 900px) {
    .grid-6, .grid-8 {
        grid-template-columns: repeat(2, 1fr) !important;
        grid-template-rows: auto !important;
    }
    .grid-4 {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    .pane-header {
        padding: 3px 6px;
        gap: 4px;
    }
    .ticker-price { font-size: 13px; }
}

/* Phone landscape */
@media (max-width: 700px) {
    .chart-grid {
        grid-template-columns: 1fr 1fr !important;
        grid-auto-rows: minmax(200px, 1fr);
        overflow-y: auto;
    }
    header { padding: 4px 10px; }
    .logo-text { font-size: 14px; }
    .pane-header select { font-size: 10px; padding: 2px 4px; max-width: 80px; }
    .ind-trigger { font-size: 10px; padding: 2px 6px; }
}

/* Phone portrait */
@media (max-width: 480px) {
    .chart-grid {
        grid-template-columns: 1fr !important;
        grid-auto-rows: minmax(220px, 50vh);
        overflow-y: auto;
    }
    body { overflow-y: auto; }
    .pane-header {
        padding: 4px 6px;
        gap: 4px;
        flex-wrap: nowrap;
    }
    .pane-header select { font-size: 11px; max-width: 90px; }
    .ticker-price { font-size: 12px; min-width: 60px; padding: 1px 6px; }
    .ticker-spread { display: none; }
    .controls label { display: none; }
    .logo-icon { font-size: 14px; }
    .logo-text { font-size: 13px; }
}