:root{--bg-main: #0b0f12;--bg-panel: #12181d;--bg-panel-soft: #182027;--border-soft: #26323a;--text-main: #e6edf2;--text-muted: #8d9aa3;--accent-green: #48ff9b;--accent-amber: #ffb84a;--accent-red: #ff5c5c;--control-bg: #0f1519;--button-bg: #1d2932;--button-hover: #263640;color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-main);color:var(--text-main)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at 50% -20%,rgba(72,255,155,.08),transparent 34rem),var(--bg-main)}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}.app-shell{width:min(1440px,calc(100% - 32px));margin:0 auto;padding:20px 0 28px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;border:1px solid var(--border-soft);border-radius:14px;background:#12181de0;box-shadow:0 18px 55px 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span:last-child{color:var(--accent-amber);font-weight:800;letter-spacing:.1em}.preset-list{display:grid;gap:8px}.preset-option{display:grid;grid-template-columns:28px minmax(0,1fr);gap:9px;width:100%;padding:9px 10px;border:1px solid var(--border-soft);border-radius:10px;background:var(--control-bg);color:var(--text-main);text-align:left}.preset-option:hover{border-color:#48ff9b73;background:var(--button-hover)}.preset-option:disabled{cursor:not-allowed;opacity:.5}.preset-option:disabled:hover{border-color:var(--border-soft);background:var(--control-bg)}.preset-option.is-selected{border-color:#48ff9bd9;box-shadow:inset 0 0 0 1px #48ff9b29}.preset-signal{display:grid;width:28px;height:28px;place-items:center;border-radius:9px;color:var(--accent-green);background:#48ff9b14}.preset-option 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.slider-control{margin-top:70.5px}.warning-text{color:var(--accent-amber);font-size:12px;line-height:1.4}@media(max-width:1100px){.dashboard-grid{grid-template-columns:1fr 1fr}.preset-panel{grid-column:2;grid-row:1}.output-stack{grid-column:1 / -1;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto;height:auto}.master-panel .slider-control{margin-top:0}.waveform-panel{grid-column:1 / -1}}@media(max-width:760px){.app-shell{width:min(100% - 20px,720px);padding-top:10px}.app-header{align-items:flex-start;flex-direction:column;padding:18px}h1{font-size:24px}.dashboard-grid{grid-template-columns:1fr}.preset-panel,.waveform-panel,.output-stack{grid-column:auto;grid-row:auto}.output-stack{grid-template-columns:1fr}.waveform-shell{height:210px}}@media(prefers-reduced-motion:no-preference){.button,.preset-option,.drop-zone{transition:border-color .15s ease,background-color .15s ease,opacity .15s ease}}