:root{
--background:#222831;
--surface: #31363F;
--accent: #76ABAE;
--text: #EEEEEE;
--line: rgba(238,238,238,.08);
--lightText: #868a92;
}

*{box-sizing: border-box;}
body{
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.app{ max-width: 1080px; margin:0 auto; padding-bottom: 60px;}

.topbar{
    display:flex; align-items: center; justify-content: space-between;
    padding: 28px 32px; border-bottom: 1px solid var(--line);
    margin-bottom: 32px;
}

.topbar h1{ margin: 0; font-size: 1.4rem; font-weight: 700; letter-spacing:-0.01em;}
.topbar .sub{ margin:2px 00; font-size: .83rem; color: rgba(238,238,238,.55);}
.connection{ display:flex; align-items: center; gap:12px;}
.status{
    font-size: .8rem; padding: 7px 14px; border-radius: 999px;
    background: var(--surface); border:1px solid var(--line);
    color: rgba(238,238,238,.75);
}

.layout{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap:22px;
    padding:0 32px;
}

.preset-card{ grid-column: 1/ -1;}

.card{
    background: var(--surface);
    border:1px solid var(--line);
    border-radius: 16px;
    padding: 24px 26px;
    box-shadow: 0 10px 30px rgba(0,0,0,.22);
}

.card h2{
    margin: 0 0 18px;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--accent);
}

.button{
    border: none; cursor: pointer; border-radius: 10px;
    padding: 10px 18px; font-size: .88rem; font-weight: 600;
    font-family: inhert; transition: filter .15s ease, transform .1s ease;
}
.button:active{ transform: scale(.97);}
.button-primary{ background: var(--accent); color: #132224;}
.button-primary:hover{filter:brightness(1.1);}
.button-ghost{background:transparent; color:var(--accent); border: 1px solid var(--accent);}
.button-ghost:hover{background: rgba(118,171,174,.1);}
.power-buttons{display: flex; gap: 12px;}
.power-buttons .button{flex:1;}

.channel-row{display:flex; align-items: center; gap: 14px; margin-bottom: 14px;}
.channel-row:last-of-type{margin-bottom: 0;}
.channel-row label{
    width: 14px;
    font-weight: 700;
    color: var(--accent);
    font-size: .85rem;
}
input[type="range"]{
    flex: 1;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    height: 4px;
    border-radius: 2px;
    background: rgba(238, 238, 238, .15);
    outline: none;
    cursor: pointer;

}

input[type="range"]::-webkit-slider-runnable-track{
    height: 4px;
    border-radius: 2px;
    background: rgba(238, 238, 238, .15);
}

input[type="range"]::-webkit-slider-thumb{
    -webkit-appearance:none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--surface);
    margin-top: -6px;
    cursor: pointer;
    transition: transform .1s ease;
}
input[type="range"]::-webkit-slider-thumb:hover{transform:scale(1.15);}
input[type="number"]{
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: textfield;
    width: 70px;
    background: var(--background);
    border: var(--line);
    border-radius: 999px;
    padding: 9px 14px;
    color: var(--text);
    text-align: center;
    font-family: inherit;
    font-size: .9rem;
    font-weight: 600;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button{
    -webkit-appearance: none;
    margin: 0;
}

input[type="text"]:focus{
    outline: none;
    border-color: var(--accent);
}

input[type="number"]:focus{
    outline: none;
    box-shadow: 0 0 0 2px var(--accent);
}

#swatch{
    width: 100%;
    height: 140px;
    border-radius: 14px;
    border: 2px solid rgba(238, 238, 238, .15);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,.25), 0 12px 28px rgba(0,0,0,.25);
    margin-bottom: 20px;
}

.brightness-row{display: flex; align-items: center; gap: 18px;}
#brightLabel{
    min-width: 46px;
    text-align: right;
    font-weight: 700;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.preset-form{
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#presetNameInput{
    flex: 1;
    background: var(--background);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text);
    font-family: inherit;
    font-size: .88rem;
}

#presetList{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
}

.presetItem{
    background: var(--background);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 16px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
    transition: border-color .15s ease;
}

.presetItem:hover{border-color: var(--accent);}
.presetItem > div:first-child{
    width: 44px !important;
    height: 44px !important;
    border-radius: 10px !important;
    border: 2px solid var(--line) !important;
    margin-bottom: 4px;

}

.presetItem span{
    font-size: .88rem;
    font-weight: 500;
}

.presetItem button{
    background: transparent;
    border: 1px solid var(--line);
    color: var(--text);
    border-radius: 6px;
    padding: 5px 12px;
    font-size: .76rem;
    cursor: pointer;
    font-family: inherit;
}

.presetItem button:hover{
    border-color: var(--accent); 
    color: var(--text);

}

.presetItem input[type="text"]{
    width: 100%;
    margin-bottom: 6px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 6px 8px;
    color: var(--text);
    font-family: inherit;
    font-size: .82rem;
}

.presetItem label{
    font-size: .72rem;
    color: rgba(238, 238, 238, .6);
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 6px;
}

footer{
    margin-top:22px;
    font-size:11.5px;
    color:var(--lightText);
    line-height:1.6;
    text-align:center;
}

@media (max-width: 600px) {
    .app{
        padding-bottom: 40px;
    }

    .topbar{
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding: 20px 18px;
        margin-bottom: 20px;
    }

    .connection{
        width: 100%;
        justify-content: space-between;
    }

    .layout{
        padding: 0 18px;
        gap: 16px;
    }

    .card{
        padding: 18px 16px;
    }

    .card h2{
        font-size: .95rem;
        margin-bottom: 14px;
    }

    #swatch{
        height: 100px;
        margin-bottom: 16px;
    }

    .channel-row{
        gap: 10px;
        margin-bottom: 12px;
    }

    input[type="range"]::-webkit-slider-thumb{
        width: 20px;
        height: 20px;
        margin-top: -8px;
    }

    input[type="number"]{
        width: 58px;
        padding: 8px 10px;
    }

    input[type="number"],
    input[type="text"]{
        font-size: 16px;
    }

    .preset-form{
        flex-direction: column;
    }

    .preset-form .button{
        width: 100%;
    }

    #presetList{
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
    }

    .button{
        padding: 11px 16px;
        font-size: .85rem;
    }
    
}

.emulatorWrap {
    flex: 0 0 100%;
    width: 100%;
    margin-top: 10px;
}

.emulatorStrip {
    display: none;
    width: 100%;
    height: 40px;
    border-radius: 8px;
    border: 1px solid #76ABAE;
}

.emulatorLog {
    margin-top: 8px;
    padding: 6px 10px;
    box-sizing: border-box;
    background: #222831;
    color: #76ABAE;
    border-radius: 6px;
    font-family: monospace;
    font-size: 13px;
    word-break: break-all;
}

@media (max-width: 600px) {
    #connectButton,
    #demoButton {
        width: 100%;
        min-height: 44px;
        margin-top: 8px;
    }

    .emulatorStrip {
        height: 56px;
    }

    .emulatorLog {
        font-size: 12px;
    }
}