@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Syne:wght@400;700;800&display=swap');

:root{
    --accent: #ff0055;
    --accent2: #00ffcc;
    --bg: #04040a;
    --glass: rgba(255,255,255,0.04);
    --border: rgba(255,255,255,0.10);
    --text: #e8e8f0;
    --dim: rgba(232,232,240,0.45);

}
*{margin:0;padding:0;box-sizing:border-box;}
body{overflow:hidden;background:var(--bg);font-family:'Space Mono',monospace;color: var(--text);}

body > canvas:not(#bgCanvas){
    position:fixed;
    inset:0;
    z-index:1;
    display:block;
}
#bgCanvas{
    position:fixed;
    inset:0;
    z-index:0;
    display:none;
    pointer-events: none;
}
#ui{
    position:fixed;
    top:16px;
    left:16px;
    z-index: 20;
    width: 262px;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    overflow-x: hidden;
    background: rgba(4, 4, 10, 0.82);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px 15px 14px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.07);
    transition:opacity 0.3s, transform 0.3s;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}
#ui::-webkit-scrollbar {
    width:3px;
}
#ui::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
}
#ui.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-14px);
}

.panel-header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 13px;
}

.panel-title {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 0.82rem;
    letter-spacing: 0.18em;
    text-transform:uppercase;
    color:var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}
.panel-title::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: dotPulse 1.8s ease-in-out infinite;
    flex-shrink: 0;
}
@keyframes dotPulse {0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.3;transform:scale(0.6)}}

.icon-btn{
    background: var(--glass);
    border:1px solid var(--border);
    color: var(--dim);
    width: 26px;
    height: 26px;
    border-radius: 6px;
    cursor:pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.icon-btn:hover{
    color: var(--text);
    border-color:rgba(255,255,255,0.3);

}
.section-label{
    font-size: 0.57rem;
    letter-spacing: 0.13em;
    text-transform:uppercase;
    color: var(--dim);
    margin-bottom: 7px;
    margin-top: 13px;
    display: flex;
    align-items: center;
    gap:5px;
    flex-wrap: wrap;
}
.kbd{
    background:rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 3px;
    padding: 1px 4px;
    font-size: 0.50rem;
    color: rgba(255,255,255,0.30);
    font-family: 'Space Mono',monospace;
}
.shape-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap:5px;
}
.shape-btn {
    background:var(--glass);
    border:1px solid var(--border);
    color: var(--dim);
    padding: 7px 2px 6px;
    border-radius: 7px;
    cursor: pointer;
    font-family: 'Space Mono', monospace;
    font-size: 0.50rem;
    text-align:center;
    transition:all 0.15s ease;
    display:flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    line-height: 1;
}
.shape-btn .icon{
    font-size: 0.88rem;
    line-height: 1;
}
.shape-btn:hover{
    background:rgba(255,255,255,0.08);
    color: var(--text);
    border-color: rgba(255,255,255,0.24);
    transform:translateY(-1px);
}
.shape-btn.active{
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 12px rgba(255,0,85,0.4);
    transform: translateY(-1px);
}
.color-row{
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 3px;
}
input[type="color"]{
    width: 34px;
    height: 34px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 6px;
    padding: 2px;
    outline: 2px solid var(--border);
    outline-offset: 1px;
    flex-shrink:0;
}
.color-presets{
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}
.preset-dot{
    width: 17px;
    height: 17px;
    border-radius: 50%;
    cursor:pointer;
    border:2px solid transparent;
    transition: all 0.13s;
    flex-shrink: 0;
}
.preset-dot:hover,.preset-dot.active{
    border-color:rgba(255,255,255,0.7);
    transform: scale(1.2);
}
.rainbow-dot{
    background: conic-gradient(#ff0055,#ffaa00,#00ffcc,#00aaff,#7744ff,#ff0055);
}
.slider-row{
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 3px;
}
input[type="range"]{
   -webkit-appearance:none;
    flex: 1;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    outline:none;
    cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb{
    -webkit-appearance:none;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 7px rgba(255,0,85,0.5);
    cursor: pointer;
}
.slider-val{
    font-size: 0.58rem;
    color: var(--dim);
    min-width: 36px;
    text-align: right;
    white-space:nowrap;
}
.number-row{
    display:flex;
    gap: 6px;
    margin-top: 6px;
}
.number-row input[type="number"]{
    flex:1;
    background:  rgba(0,0,0,0.4);
    border: 1px solid var(--border);
    color: var(--text);
    font-family:'Space Mono',monospace;
    font-size: 0.60rem;
    padding: 5px 8px;
    border-radius: 6px;
    outline: none;
    -moz-appearance: textfield;
    transition:border-color 0.15s;
}
.number-row input[type="number"]::-webkit-outer-spin-button,
.number-row input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
.number-row input[type="number"]:focus { border-color:var(--accent); }
.apply-btn {
    background: rgba(255,0,85,0.12);
    border: 1px solid rgba(255,0,85,0.3);
    color:var(--accent);
    font-family: 'Space Mono',monospace;
    font-size: 0.58rem;
    padding: 5px 9px;
    border-radius: 6px;
    cursor: pointer;
    white-space:nowrap;
    transition:all 0.14s;
}
.apply-btn:hover{
    background: rgba(255,0,85,0.25);
    border-color: var(--accent);
}
.speed-row{
    display: flex;
    gap: 5px;
    margin-top: 3px;
}
.speed-btn{
    flex:1;
    background: var(--glass);
    border: 1px solid var(--border);
    color: var(--dim);
    font-family: 'Space Mono',monospace;
    font-size: 0.56rem;
    padding: 6px 2px;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: all 0.13s;
    white-space: nowrap;

}
.speed-btn:hover{
    background: rgba(255,255,255,0.07);
    color: var(--text);
}
.speed-btn.active{
    background: rgba(0,255,204,0.12);
    border-color: var(--accent2);
    color: var(--accent2);
}
.speed-btn.active-red {
    background:rgba(255,0,85,0.14);
    border-color: var(--accent);
    color: var(--accent);
}
.full-btn{
    width: 100%;
    background:var(--glass);
    border: 1px solid var(--border);
    color: var(--dim);
    font-family:'Space Mono',monospace;
    font-size: 0.60rem;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: all 0.14s;
    margin-top: 3px;
}
.full-btn:hover{
    background: rgba(255,255,255,0.08);
    color: var(--text);
    border-color: rgba(255,255,255,0.28);
}
#status-bar{
    margin-top:13px;
    padding: 7px 10px;
    background: rgba(0,0,0,0.35);
    border-radius: 8px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}
#status-dot{
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #ffaa00;
    flex-shrink:0;
    transition:background 0.3s,box-shadow 0.3s;
}
#status-dot.active{
    background: #00ff88;
    box-shadow: 0 0 7px #00ff88;
}
#status-text{
    font-size: 0.60rem;
    color: var(--dim);
    line-height: 1.3;
}
.two-hand-legend{
    margin-top: 11px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.thl-row{
    display: flex;
    align-items : center;
    gap : 7px;
    font-size: 0.57rem;
    color: var(--dim);
}
.thl-tag{
    font-size: 0.52rem;
    font-weight: 700;
    padding: 2px 5px;
    border-radius: 4px;
    flex-shrink: 0;
    letter-spacing: 0.05em;
}
.thl-tag.L{
    background: rgba(0,255,136,0.15);
    color: #00ff88;
    border:1px solid rgba(0,255,136,0.3);
}
.thl-tag.R{
    background: rgba(0,200,255,0.15);
    color: #00ccff;
    border: 1px solid rgba(0,200,255,0.3);
}
.thl-tag.LR{
    background: rgba(255,170,0,0.15);
    color: #ffaa00;
    border: 1px solid rgba(255,170,0,0.3);
}
.hint{
    margin-top: 10px;
    font-size: 0.55rem;
    color:rgba(255,255,255,0.2);
    line-height: 1.9;
}
.hint span{
    color: rgba(255,255,255,0.42);

}
#hand-viewer{
    position:fixed;
    bottom:16px;
    right: 16px;
    z-index: 20;
    width: 220px;
    background: rgba(0,0,0,0.90);
    border: 1px solid rgba(0,255,100,0.2);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.7), 0 0 0 1px rgba(0,255,100,0.06);
}
.hv-header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 10px 5px;
    border-bottom: 1px solid rgba(0,255,100,0.12);
}
.hv-title{
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(0,255,120,0.7);
}
.hv-indicators { 
    display: flex;
    gap: 6px;
}
.hv-dot{
    font-size: 0.52rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius:3px;
    transition: all 0.2s;
    background: rgba(255,255,255,0.05);
    color: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.1);
}
.hv-dot.active-L{
    background: rgba(0,255,136,0.2);
    color: #00ff88;
    border-color: rgba(0,255,136,0.4);
    box-shadow: 0 0 6px rgba(0,255,136,0.3);
}
.hv-dot.active-R{
    background: rgba(0,200,255,0.2);
    color: #00ccff;
    border-color: rgba(0,200,255,0.4);
    box-shadow:0 0 6px rgba(0,200,255,0.3);
}
#handCanvas{
    display : block;
    width: 220px;
    height: 165px;
    background: #000;
}
.hv-footer {
    display: flex;
    justify-content:space-between;
    padding:5px 10px 6px;
    border-top: 1px solid rgba(0, 255, 100, 0.10);
}
.hv-footer span{
    font-size: 0.55rem;
    color: rgba(0,255,120,0.5);
}
#hand-bar-wrap{
    position : fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    display: flex;
    flex-direction : column;
    align-items: center;
    gap: 6px;
    pointer-events: none;
}
.bar-label{
    font-size: 0.48rem;
    color: rgba(255,255,255,0.22);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
#hand-bar-track{
    width: 4px;
    height: 130px;
    background:rgba(255,255,255,0.05);
    border-radius: 4px;
    position: relative;
    overflow:hidden;
}
#hand-bar-fill{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top,var(--accent),var(--accent2));
    border-radius: 4px;
    transition: height 0.08s linear;
    box-shadow: 0 0 8px var(--accent);
}
#hand-pct{
    font-size: 0.48rem;
    color: rgba(255,255,255,0.22);
    min-width: 28px;
    text-align: center;
}
#stats{
    position: fixed;
    bottom: 18px;
    left: 18px;
    z-index: 20;
    font-size: 0.56rem;
    color: rgba(255,255,255,0.18);
    line-height: 1.9;
    pointer-events: none;
}
#audio-bar-wrap{
    position: fixed;
    bottom : 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 20;
    pointer-events:none;
}
#audio-bar-fill{
    height: 100%;
    width:0%;
    background: linear-gradient(to right,var(--accent),var(--accent2));
    transition: width 0.05s linear;
    box-shadow: 0 0 8px var(--accent2);
}
#input_video{
    display: none;
}