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

:root {
    --bg: #0a0a0a;
    --bg-panel: #0d0d0d;
    --bg-canvas: #050505;
    --bg-input: #1a1a1a;
    --text: #d4a843;
    --text-accent: #7fbf7f;
    --text-dim: #888;
    --text-muted: #666;
    --text-footer: #555;
    --border: #3a6a3a;
    --border-dim: #2a4a2a;
    --border-canvas: #1a3a1a;
    --link: #55aaff;
    --link-footer: #e2d84a;
    --status-ok: #3a6a3a;
    --status-err: #aa3333;
    --btn-active-bg: #3a2a1a;
    --btn-active-text: #ffcc55;
}

body.theme-green {
    --bg: #0a0a0a;
    --bg-panel: #0d0d0d;
    --bg-canvas: #050505;
    --bg-input: #1a1a1a;
    --text: #33ff33;
    --text-accent: #00cc00;
    --text-dim: #668866;
    --text-muted: #446644;
    --text-footer: #335533;
    --border: #00aa00;
    --border-dim: #006600;
    --border-canvas: #003300;
    --link: #66ff99;
    --link-footer: #33ff33;
    --status-ok: #00aa00;
    --status-err: #aa3333;
    --btn-active-bg: #003300;
    --btn-active-text: #66ff66;
}

body.theme-blue {
    --bg: #0a0e1a;
    --bg-panel: #0d1220;
    --bg-canvas: #060a14;
    --bg-input: #121830;
    --text: #66ccff;
    --text-accent: #4a90e2;
    --text-dim: #667799;
    --text-muted: #445566;
    --text-footer: #334455;
    --border: #2a5a8a;
    --border-dim: #1a3a5a;
    --border-canvas: #0a2040;
    --link: #77bbff;
    --link-footer: #4a90e2;
    --status-ok: #2a5a8a;
    --status-err: #aa3333;
    --btn-active-bg: #1a2a4a;
    --btn-active-text: #99ddff;
}

body.theme-amber {
    --bg: #1a0f00;
    --bg-panel: #1f1200;
    --bg-canvas: #120a00;
    --bg-input: #2a1a00;
    --text: #ffaa00;
    --text-accent: #cc7700;
    --text-dim: #886633;
    --text-muted: #664400;
    --text-footer: #553300;
    --border: #885500;
    --border-dim: #553300;
    --border-canvas: #3a2200;
    --link: #ffcc44;
    --link-footer: #ffaa00;
    --status-ok: #885500;
    --status-err: #aa3333;
    --btn-active-bg: #3a2200;
    --btn-active-text: #ffcc55;
}

body.theme-light {
    --bg: #f5f5f0;
    --bg-panel: #ffffff;
    --bg-canvas: #eeeee8;
    --bg-input: #e0e0d8;
    --text: #333333;
    --text-accent: #2a6a9a;
    --text-dim: #666666;
    --text-muted: #999999;
    --text-footer: #888888;
    --border: #bbbbaa;
    --border-dim: #ccccbb;
    --border-canvas: #ccccbb;
    --link: #2266aa;
    --link-footer: #2a6a9a;
    --status-ok: #2a8a3a;
    --status-err: #cc3333;
    --btn-active-bg: #d0d0c8;
    --btn-active-text: #333333;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Courier New', 'Lucida Console', Monaco, monospace;
    font-size: 13px;
    overflow-x: hidden;
}

#app {
    padding: 10px;
    max-width: 1200px;
    margin: 0 auto;
}

.panel {
    border: 1px solid var(--border);
    margin-bottom: 12px;
    padding: 8px;
    background: var(--bg-panel);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-dim);
}

.panel-title {
    color: var(--text-accent);
    font-weight: bold;
}

.controls {
    display: flex;
    gap: 4px;
}

.controls button {
    background: var(--bg-input);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 2px 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
}

.controls button:hover {
    background: var(--border-dim);
}

.controls button.active {
    background: var(--btn-active-bg);
    color: var(--btn-active-text);
}

.tx-rate {
    color: var(--text-accent);
}

.last-tx {
    color: var(--text-dim);
    font-size: 11px;
}

.total-count {
    color: var(--text-accent);
}

.block-timing {
    color: var(--text-accent);
    font-size: 12px;
}

#tx-canvas {
    width: 100%;
    height: 80px;
    display: block;
    cursor: crosshair;
    background: var(--bg-canvas);
    border: 1px solid var(--border-canvas);
}

#block-canvas {
    width: 100%;
    height: 160px;
    display: block;
    cursor: crosshair;
    background: var(--bg-canvas);
    border: 1px solid var(--border-canvas);
}

#window-stats {
    margin-top: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 2px 12px;
    font-size: 12px;
}

#block-stats {
    margin-top: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 2px 12px;
    font-size: 12px;
}

#block-averages {
    margin-top: 4px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
    font-size: 12px;
    color: var(--text-dim);
}

.avg-item {
    color: var(--text-accent);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-color {
    width: 10px;
    height: 10px;
    display: inline-block;
    flex-shrink: 0;
}

.stat-bar-bg {
    width: 60px;
    height: 8px;
    background: var(--bg-input);
    display: inline-block;
}

.stat-bar {
    height: 100%;
    display: block;
}

.tx-detail {
    margin-top: 8px;
    padding: 6px;
    background: var(--bg);
    border: 1px solid var(--border-dim);
    font-size: 12px;
}

.tx-detail.hidden {
    display: none;
}

.detail-row {
    margin: 2px 0;
}

.detail-row .label {
    color: var(--text-accent);
}

.detail-row a {
    color: var(--link);
    text-decoration: none;
}

.detail-row a:hover {
    text-decoration: underline;
}

#mempool-stats {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 12px;
}

.mempool-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.mempool-name {
    width: 140px;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mempool-count {
    width: 50px;
    text-align: right;
    color: var(--text-dim);
}

.mempool-pct {
    width: 40px;
    text-align: right;
    color: var(--text-dim);
}

.mempool-bar-bg {
    flex: 1;
    height: 10px;
    background: var(--bg-input);
}

.mempool-bar {
    height: 100%;
    display: block;
}

.footer {
    text-align: center;
    font-size: 11px;
    color: var(--text-footer);
    padding: 8px 0 20px;
}

.footer a {
    color: var(--link-footer);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.status {
    position: fixed;
    bottom: 8px;
    right: 12px;
    font-size: 11px;
    color: var(--text-muted);
}

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

.status.error {
    color: var(--status-err);
}

/* =========== SETTINGS PANEL =========== */

.settings-btn {
    background: var(--bg-input);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 2px 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 15px;
    line-height: 1;
}

.settings-btn:hover {
    background: var(--border-dim);
}

.settings-panel {
    display: none;
    padding: 8px 10px;
    margin-bottom: 6px;
    border: 1px solid var(--border-dim);
    background: var(--bg);
    font-size: 12px;
}

.settings-panel.open {
    display: block;
}

.settings-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 5px 0;
}

.settings-row .label {
    color: var(--text-accent);
    width: 100px;
    flex-shrink: 0;
}

.settings-row .options {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.settings-row .options button {
    background: var(--bg-input);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 2px 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
}

.settings-row .options button:hover {
    background: var(--border-dim);
}

.settings-row .options button.active {
    background: var(--btn-active-bg);
    color: var(--btn-active-text);
    border-color: var(--btn-active-text);
}

.settings-row input[type="checkbox"] {
    accent-color: var(--text-accent);
}