:root {
    --bg-main: #0a0e14;
    --bg-card: #101721;
    --bg-card-header: #151f2c;
    --border-card: #1f2d3d;
    --text-primary: #e6edf3;
    --text-secondary: #7d8590;
    --color-green: #238636;
    --color-green-text: #3fb950;
    --color-red: #da3633;
    --color-red-text: #f85149;
    --color-gold: #d29922;
    --color-cyan: #388bfd;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.4;
    min-height: 100vh;
    padding: 10px;
}

/* Header */
.terminal-header {
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    padding: 8px 14px;
    margin-bottom: 12px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.brand-group, .header-right-ctrls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-badge {
    background: #1f6feb;
    color: #fff;
    font-weight: 700;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 3px;
    letter-spacing: 0.5px;
}

.system-status {
    color: var(--text-secondary);
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-green-text);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--color-green-text);
}

/* Timezone Controls */
.tz-controls {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.tz-block {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #0d1117;
    padding: 3px 8px;
    border-radius: 3px;
    border: 1px solid var(--border-card);
}

.tz-lbl {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
}

.tz-select {
    background: #161f2c;
    color: var(--text-primary);
    border: 1px solid var(--border-card);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}
.tz-select:focus { border-color: var(--color-cyan); }

.clock-display {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 65px;
}

/* Search Box */
.search-box {
    display: flex;
    gap: 4px;
    align-items: center;
}

.search-box input {
    background: #0d1117;
    border: 1px solid var(--border-card);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 4px 6px;
    border-radius: 3px;
    width: 155px;
    outline: none;
}
.search-box input:focus { border-color: var(--color-cyan); }

.ctrl-btn {
    background: #21262d;
    border: 1px solid var(--border-card);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 3px;
    cursor: pointer;
}
.ctrl-btn:hover { background: #30363d; }

.countdown {
    font-size: 11px;
    color: var(--color-gold);
    font-weight: 600;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    border-top: 1px solid var(--border-card);
    padding-top: 6px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-card);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s;
}
.filter-btn:hover { color: var(--text-primary); background: #161f2c; }
.filter-btn.active {
    background: #1f6feb;
    color: #fff;
    border-color: #1f6feb;
}

/* Masonry Grid */
.masonry-grid {
    column-count: 4;
    column-gap: 12px;
}

@media (max-width: 1400px) { .masonry-grid { column-count: 3; } }
@media (max-width: 1000px) { .masonry-grid { column-count: 2; } }
@media (max-width: 600px)  { .masonry-grid { column-count: 1; } }

/* Asset Box */
.asset-box {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 4px;
    margin-bottom: 12px;
    break-inside: avoid;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.asset-box.watchlist-box {
    border: 1px solid #d29922;
}

.box-header {
    background: var(--bg-card-header);
    padding: 6px 10px;
    font-weight: 700;
    font-size: 11px;
    color: #8b949e;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-card);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.watchlist-header {
    color: var(--color-gold) !important;
}

.spread-banner {
    background: #0d1117;
    padding: 6px 10px;
    font-size: 10px;
    border-bottom: 1px solid var(--border-card);
    display: flex;
    justify-content: space-around;
}
.spread-item { display: flex; gap: 4px; }
.spread-val.inv { color: var(--color-red-text); font-weight: 700; }
.spread-val.pos { color: var(--color-green-text); font-weight: 700; }

.asset-table {
    width: 100%;
    border-collapse: collapse;
}

.asset-row {
    border-bottom: 1px solid #161f2c;
    transition: background-color 0.4s ease;
}
.asset-row:last-child { border-bottom: none; }

.asset-row td {
    padding: 6px 8px;
    vertical-align: middle;
}

/* 1. Symbol & Name */
.sym-col { width: 34%; }
.sym-title-row {
    display: flex;
    align-items: center;
    gap: 5px;
}
.sym-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 11px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-status {
    font-size: 8px;
    padding: 1px 3px;
    border-radius: 2px;
    font-weight: 700;
    letter-spacing: 0.3px;
}
.item-status.open {
    background: rgba(46, 160, 67, 0.2);
    color: var(--color-green-text);
    border: 1px solid var(--color-green);
}
.item-status.closed {
    background: rgba(110, 118, 129, 0.1);
    color: var(--text-secondary);
    border: 1px solid #30363d;
}

.sym-sub {
    font-size: 9px;
    color: var(--text-secondary);
}

.remove-btn {
    color: #484f58;
    cursor: pointer;
    font-size: 10px;
    margin-left: 4px;
}
.remove-btn:hover { color: var(--color-red-text); }

/* 2. Price */
.price-col {
    width: 24%;
    text-align: right;
    font-weight: 600;
    font-size: 11px;
}

/* 3. Sparkline */
.spark-col {
    width: 20%;
    text-align: center;
}

/* 4. Change / Pct */
.chg-col {
    width: 22%;
    text-align: right;
    font-size: 11px;
    font-weight: 600;
}

.pos-text { color: var(--color-green-text); }
.neg-text { color: var(--color-red-text); }

/* Flash Animations */
@keyframes flashGreen {
    0% { background-color: rgba(35, 134, 54, 0.6); }
    100% { background-color: transparent; }
}
@keyframes flashRed {
    0% { background-color: rgba(218, 54, 51, 0.6); }
    100% { background-color: transparent; }
}
.flash-up { animation: flashGreen 0.8s ease-in-out 3; }
.flash-down { animation: flashRed 0.8s ease-in-out 3; }

svg.sparkline {
    width: 45px;
    height: 14px;
    overflow: visible;
    display: inline-block;
    vertical-align: middle;
}
svg.sparkline path {
    fill: none;
    stroke-width: 1.2;
    stroke-linecap: round;
}

/* Modal Popup */
.modal {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal.hidden { display: none; }

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    width: 380px;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    overflow: hidden;
}

.modal-header {
    background: var(--bg-card-header);
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 11px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-card);
}
.modal-close {
    cursor: pointer;
    font-size: 16px;
    color: var(--text-secondary);
}
.modal-close:hover { color: #fff; }

.modal-body {
    padding: 16px;
    font-size: 12px;
}