/* Depth Dashboard — Dark theme styles */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #131722;
    --bg-tertiary: #1c2030;
    --bg-card: #181c27;
    --border: #252a3a;
    --border-hover: #3a4060;
    --text-primary: #d1d4dc;
    --text-secondary: #787b86;
    --text-muted: #555;
    --green: #26a69a;
    --green-dim: rgba(38, 166, 154, 0.15);
    --red: #ef5350;
    --red-dim: rgba(239, 83, 80, 0.15);
    --accent: #2962ff;
    --accent-dim: rgba(41, 98, 255, 0.15);
    --futures-green: #26a69a;
    --futures-red: #ef5350;
    --spot-green: #4dd0e1;
    --spot-red: #ff8a65;
    --toolbar-height: 44px;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
    -webkit-font-smoothing: antialiased;
}

body {
    display: flex;
    flex-direction: column;
}

#app {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

/* ============ Toolbar ============ */
#toolbar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--toolbar-height);
    padding: 0 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    user-select: none;
    z-index: 100;
}

.toolbar-left, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    white-space: nowrap;
}

.logo-icon {
    color: var(--accent);
    margin-right: 4px;
}

.symbol-badge {
    background: var(--bg-tertiary);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 12px;
    border: 1px solid var(--border);
}

/* Symbol selector */
.symbol-selector {
    display: flex;
    gap: 2px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    padding: 2px;
    border: 1px solid var(--border);
}

.sym-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    transition: all 0.15s ease;
}

.sym-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.sym-btn.active {
    background: var(--accent);
    color: #fff;
}

/* Timeframe selector */
.tf-selector {
    display: flex;
    gap: 2px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    padding: 2px;
}

.tf-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    transition: all 0.15s ease;
}

.tf-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

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

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

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

.price {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    min-width: 120px;
    text-align: right;
}

/* ============ Info Bar ============ */
.info-bar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    overflow-x: auto;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.info-label {
    color: var(--text-secondary);
    font-size: 11px;
}

.info-value {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-weight: 600;
    font-size: 12px;
}

.info-value.green { color: var(--green); }
.info-value.red { color: var(--red); }

/* ============ Depth Pane Overlays ============ */
.depth-pane-overlay {
    position: absolute;
    left: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    padding: 2px 8px;
    background: rgba(15, 17, 23, 0.75);
    backdrop-filter: blur(4px);
    border-bottom: 1px solid rgba(37, 42, 58, 0.5);
    font-size: 11px;
    user-select: none;
    pointer-events: auto;
    max-width: calc(100% - 60px);
}

.depth-control-group {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.depth-pane-label {
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 10px;
}

.unit-toggle-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    padding: 2px 7px;
    font-size: 11px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    transition: all 0.15s ease;
    min-width: 24px;
    text-align: center;
}
.unit-toggle-btn:hover { border-color: var(--border-hover); }
.unit-toggle-btn.active-usd { color: #4caf50; }
.unit-toggle-btn.active-coin { color: #ff9800; }

/* (divider removed — overlays are separate) */

.depth-select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    appearance: auto;
    min-width: 56px;
}

.depth-select:hover {
    border-color: var(--border-hover);
}

.depth-select:focus {
    border-color: var(--accent);
}

.depth-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.market-selector {
    display: flex;
    gap: 1px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.charttype-selector {
    display: flex;
    gap: 1px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.charttype-btn {
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-secondary);
    padding: 3px 7px;
    font-size: 10px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.15s ease;
    letter-spacing: 0.3px;
}

.charttype-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.charttype-btn.active {
    background: #6d28d9;
    color: #fff;
}

.sdelta-pct2-wrap {
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.sdelta-minus {
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 12px;
}

.market-btn {
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-secondary);
    padding: 3px 8px;
    font-size: 10px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.15s ease;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.market-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.market-btn.active {
    background: var(--accent);
    color: #fff;
}

.depth-chart-legend {
    display: flex;
    gap: 10px;
    flex-wrap: nowrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
}

.legend-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-label {
    color: var(--text-secondary);
    white-space: nowrap;
    font-size: 10px;
}

.legend-value {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-weight: 600;
    font-size: 11px;
}

/* ============ Chart Container (single chart with panes) ============ */
#chart-container {
    flex: 1;
    min-height: 0;
    position: relative;
}

/* Add pane button */
.add-pane-btn {
    position: absolute;
    bottom: 28px;
    left: 8px;
    z-index: 20;
    width: 26px;
    height: 26px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    opacity: 0.7;
}
.add-pane-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    opacity: 1;
}

/* Remove pane button */
.depth-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
    opacity: 0.5;
    transition: all 0.15s ease;
    margin-left: 4px;
}
.depth-close-btn:hover {
    color: var(--red);
    opacity: 1;
}

/* Horizontal line button */
.hline-btn-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-left: 4px;
}
.depth-hline-btn {
    background: none;
    border: 1px solid rgba(255, 215, 0, 0.3);
    color: #FFD700;
    font-size: 12px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1.4;
    border-radius: 3px;
    opacity: 0.6;
    transition: all 0.15s ease;
}
.depth-hline-btn:hover {
    opacity: 1;
    background: rgba(255, 215, 0, 0.15);
    border-color: rgba(255, 215, 0, 0.6);
}
.hline-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #FFD700;
    color: #0f1117;
    font-size: 8px;
    font-weight: 700;
    min-width: 12px;
    height: 12px;
    line-height: 12px;
    text-align: center;
    border-radius: 6px;
    padding: 0 2px;
    pointer-events: none;
}

/* ============ Loading overlay ============ */
#loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 17, 23, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

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

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

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

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

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

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