/* ============================================================
   styles.css — WatchCrypto Terminal — Dark Theme
   ============================================================ */

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

:root {
    --bg-base: #0a0a0a;
    --bg-pane: #0f0f0f;
    --bg-elevated: #151515;
    --border-subtle: #1f1f1f;
    --text-primary: #e8e8e8;
    --text-secondary: #808080;
    --green-price: #22c55e;
    --green-bar: rgba(34, 197, 94, 0.25);
    --red-price: #ef4444;
    --red-bar: rgba(239, 68, 68, 0.25);

    --blue: #3b82f6;
    --yellow: #f59e0b;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --panel-header-h: 28px;
    --divider-size: 4px;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Terminal Layout ---- */
.terminal {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

/* ---- Top Header Bar ---- */
.header-bar {
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 10px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
    height: 36px;
    min-height: 36px;
    z-index: 100;
    flex-shrink: 0;
}

.header-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    margin-right: 8px;
}

.header-spacer { flex: 1; }

/* ---- Grid Preset Buttons ---- */
.grid-presets {
    display: flex;
    gap: 4px;
    align-items: center;
}

.grid-preset-label {
    font-size: 10px;
    color: var(--text-secondary);
    margin-right: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.grid-preset-btn {
    padding: 3px 8px;
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 10px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.1s;
}
.grid-preset-btn:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-color: #2a2a2a;
}
.grid-preset-btn.active {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--blue);
}

/* Connection status */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 10px;
    color: var(--text-secondary);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-secondary);
}
.status-dot.status-connected { background: var(--green-price); box-shadow: 0 0 6px var(--green-price); }
.status-dot.status-connecting { background: var(--yellow); animation: pulse 1s infinite; }
.status-dot.status-disconnected { background: var(--red-price); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ---- Layout Root ---- */
#layout-root {
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* ---- Split Container ---- */
.layout-split {
    display: flex;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.layout-split[data-direction="horizontal"] { flex-direction: row; }
.layout-split[data-direction="vertical"] { flex-direction: column; }

/* ---- Divider ---- */
.layout-divider {
    flex-shrink: 0;
    background: var(--border-subtle);
    position: relative;
    z-index: 10;
    transition: background 0.15s;
}
.layout-divider:hover, .layout-divider:active { background: var(--blue); }
.divider-h { width: var(--divider-size); cursor: col-resize; }
.divider-v { height: var(--divider-size); cursor: row-resize; }

.layout-dragging * { pointer-events: none !important; }
.layout-dragging .layout-divider { pointer-events: auto !important; }

/* ---- Panel ---- */
.layout-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-pane);
    min-width: 0;
    min-height: 0;
    border: 1px solid var(--border-subtle);
    position: relative;
}

.panel-content {
    flex: 1;
    overflow: hidden;
    position: relative;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

/* ---- Panel Header ---- */
.panel-header {
    display: flex;
    align-items: center;
    height: var(--panel-header-h);
    min-height: var(--panel-header-h);
    padding: 0 4px 0 8px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
    gap: 6px;
    user-select: none;
    flex-shrink: 0;
    cursor: grab;
}
.panel-header:active { cursor: grabbing; }

.panel-header-market {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}
.panel-header-market .exchange-label {
    color: var(--text-secondary);
    font-weight: 400;
}
.panel-header-market .symbol-label {
    color: var(--text-primary);
    font-weight: 600;
}
.panel-header-market .tf-label {
    color: var(--text-secondary);
    font-weight: 400;
}

.panel-header-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 2px 4px;
    line-height: 1;
    border-radius: 3px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.panel-header-btn:hover {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary);
}
.panel-header-btn.close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--red-price);
}

/* ---- Config Modal ---- */
.config-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 32px;
    background: rgba(0,0,0,0.4);
}

.config-modal {
    background: var(--bg-elevated);
    border: 1px solid #2a2a2a;
    border-radius: 8px;
    padding: 16px;
    min-width: 280px;
    max-width: 360px;
    max-height: 80%;
    overflow-y: auto;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.8);
    font-family: var(--font-mono);
}

.config-modal h3 {
    font-size: 12px;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.config-field {
    margin-bottom: 12px;
}

.config-field label {
    display: block;
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.config-field select,
.config-field input {
    width: 100%;
    padding: 6px 8px;
    background: var(--bg-base);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
}
.config-field select:focus,
.config-field input:focus {
    border-color: var(--blue);
}
.config-field select option {
    background: var(--bg-base);
    color: var(--text-primary);
}

.config-tf-group {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.config-tf-btn {
    padding: 4px 10px;
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.1s;
}
.config-tf-btn:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
}
.config-tf-btn.active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue);
    border-color: var(--blue);
}

.config-market-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    margin-top: 4px;
}

.config-market-item {
    padding: 6px 8px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-subtle);
}
.config-market-item:last-child { border-bottom: none; }
.config-market-item:hover { background: rgba(255,255,255,0.04); }
.config-market-item.selected {
    background: rgba(59, 130, 246, 0.1);
    color: var(--blue);
}
.config-market-item .exchange-tag {
    font-size: 9px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* ---- Context Menu ---- */
.layout-context-menu {
    position: fixed;
    z-index: 10000;
    background: var(--bg-elevated);
    border: 1px solid #2a2a2a;
    border-radius: 6px;
    padding: 4px 0;
    min-width: 180px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
    font-family: var(--font-mono);
    font-size: 12px;
}

.ctx-section { padding: 2px 0; }

.ctx-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    cursor: pointer;
    color: var(--text-primary);
    transition: background 0.08s;
    white-space: nowrap;
}
.ctx-item:hover {
    background: rgba(255,255,255,0.06);
}
.ctx-item.ctx-danger:hover {
    background: rgba(239, 68, 68, 0.15);
    color: var(--red-price);
}
.ctx-icon {
    font-size: 13px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}
.ctx-divider {
    height: 1px;
    background: var(--border-subtle);
    margin: 4px 8px;
}

/* ---- Watchlist Widget ---- */
.watchlist-search {
    width: calc(100% - 12px);
    margin: 6px;
    padding: 4px 8px;
    background: var(--bg-base);
    border: 1px solid var(--border-subtle);
    border-radius: 3px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    outline: none;
}
.watchlist-search:focus { border-color: var(--blue); }
.watchlist-search::placeholder { color: var(--text-secondary); }

.watchlist-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.wl-exchange-group { margin-bottom: 2px; }

.wl-exchange-label {
    font-size: 9px;
    font-weight: 700;
    color: var(--text-secondary);
    padding: 4px 8px 2px;
    letter-spacing: 0.5px;
}

.wl-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    grid-template-rows: auto auto;
    padding: 3px 8px;
    cursor: grab;
    transition: background 0.1s;
    gap: 0 6px;
    user-select: none;
}
.wl-row:hover { background: rgba(255,255,255,0.04); }
.wl-row.wl-active {
    background: rgba(255,255,255,0.04);
    border-left: 2px solid var(--blue);
}
.wl-row[draggable="true"] { cursor: grab; }
.wl-row[draggable="true"]:active { cursor: grabbing; }

.wl-symbol-name {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    grid-column: 1;
    grid-row: 1;
}
.wl-price {
    font-size: 11px;
    color: var(--text-primary);
    grid-column: 2;
    grid-row: 1;
    text-align: right;
}
.wl-change {
    font-size: 10px;
    grid-column: 3;
    grid-row: 1;
    text-align: right;
    min-width: 50px;
}
.wl-vol {
    font-size: 9px;
    color: var(--text-secondary);
    grid-column: 2 / 4;
    grid-row: 2;
    text-align: right;
}

.change-positive { color: var(--green-price); }
.change-negative { color: var(--red-price); }

.flash-green { animation: flashGreen 0.4s ease-out; }
.flash-red { animation: flashRed 0.4s ease-out; }

@keyframes flashGreen {
    0% { background: var(--green-bar); }
    100% { background: transparent; }
}
@keyframes flashRed {
    0% { background: var(--red-bar); }
    100% { background: transparent; }
}

/* ---- Order Book Widget ---- */
.ob-asks {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 0;
}
.ob-bids {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
}

.ob-col-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 3px 8px;
    font-size: 9px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    background: var(--bg-pane);
    z-index: 1;
}

.ob-spread {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 3px 8px;
    font-size: 11px;
    background: var(--bg-base);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}
.spread-price { font-weight: 700; color: var(--text-primary); font-size: 13px; }
.spread-label { color: var(--text-secondary); font-size: 10px; }
.spread-value { color: var(--text-secondary); font-size: 10px; }

.ob-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 1px 8px;
    font-size: 11px;
    position: relative;
    line-height: 18px;
}
.ob-bar {
    position: absolute;
    top: 0;
    height: 100%;
    z-index: 0;
}
.ob-bar-bid { right: 0; background: var(--green-bar); }
.ob-bar-ask { right: 0; background: var(--red-bar); }
.ob-col { position: relative; z-index: 1; }
.ob-col-price { text-align: left; }
.ob-col-qty { text-align: right; }
.ob-col-total { text-align: right; color: var(--text-secondary); font-size: 10px; }
.bid-price { color: var(--green-price); }
.ask-price { color: var(--red-price); }

/* ---- Trade Tape Widget ---- */
.trade-tape-header {
    display: grid;
    grid-template-columns: 70px 12px 1fr 1fr 1fr;
    padding: 4px 8px;
    font-size: 9px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    gap: 4px;
}

.trade-tape-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.tt-row {
    display: grid;
    grid-template-columns: 70px 12px 1fr 1fr 1fr;
    padding: 1px 8px;
    font-size: 11px;
    font-family: var(--font-mono);
    line-height: 18px;
    gap: 4px;
    align-items: center;
}
.tt-row.trade-new { animation: tradeFlash 0.5s ease-out; }

@keyframes tradeFlash {
    0% { background: rgba(255, 255, 255, 0.06); }
    100% { background: transparent; }
}

.tt-time { color: var(--text-secondary); font-size: 10px; }
.tt-side {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.tt-side-buy { background: var(--green-price); }
.tt-side-sell { background: var(--red-price); }
.tt-price-buy { color: var(--green-price); text-align: right; }
.tt-price-sell { color: var(--red-price); text-align: right; }
.tt-size { text-align: right; color: var(--text-primary); }
.tt-bar-cell { position: relative; }
.tt-size-bar {
    height: 12px;
    border-radius: 1px;
    min-width: 1px;
}
.tt-size-bar-buy { background: var(--green-bar); }
.tt-size-bar-sell { background: var(--red-bar); }

/* ---- Ticker Widget ---- */
.ticker-widget {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 16px;
    gap: 8px;
}

.ticker-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
    letter-spacing: -1px;
}

.ticker-change {
    font-size: 18px;
    font-weight: 600;
    font-family: var(--font-mono);
}
.ticker-change-positive { color: var(--green-price); }
.ticker-change-negative { color: var(--red-price); }

.ticker-stats {
    display: flex;
    gap: 24px;
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

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

.ticker-stat-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.ticker-stat-value {
    font-size: 12px;
    color: var(--text-primary);
}

.ticker-symbol {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ---- Overlay Chart Legend ---- */
.overlay-legend {
    position: absolute;
    top: 8px;
    left: 8px;
    display: flex;
    gap: 12px;
    z-index: 5;
    pointer-events: none;
}
.overlay-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    font-family: var(--font-mono);
    color: var(--text-primary);
}
.overlay-legend-swatch {
    width: 12px;
    height: 3px;
    border-radius: 1px;
}

/* ---- Drop Target Indicator ---- */
.layout-panel.drop-target {
    outline: 2px solid var(--blue);
    outline-offset: -2px;
}
.layout-panel.drop-target::after {
    content: 'Drop here';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    color: var(--blue);
    z-index: 500;
    pointer-events: none;
}

/* ---- Drag Ghost ---- */
.drag-ghost {
    position: fixed;
    pointer-events: none;
    z-index: 10001;
    background: var(--bg-elevated);
    border: 1px solid var(--blue);
    border-radius: 4px;
    padding: 4px 10px;
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-primary);
    opacity: 0.9;
}

/* ---- Scrollbar Styling ---- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2a2a2a; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* (Legacy trade styles removed — widget uses tt-* classes) */