* { box-sizing: border-box; }

:root { color: #f5f3ee; background: #111; font-family: system-ui, -apple-system, "Yu Gothic", sans-serif; }
body { min-width: 320px; margin: 0; background: #111; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid #d9ff00; outline-offset: 3px; }
.topbar { display: flex; align-items: center; gap: 1.1rem; min-height: 64px; padding: .75rem clamp(1rem, 4vw, 1.5rem); border-bottom: 1px solid #ffffff22; }
.topbar strong { flex: 1; letter-spacing: .06em; }
.topbar a { color: #d9ff00; text-decoration: none; }
.hero { max-width: 1100px; margin: auto; padding: 42px 22px 24px; }
.hero > p:first-child { color: #d9ff00; font-size: 12px; letter-spacing: .16em; }
.hero h1 { margin: .15em 0; font-size: clamp(34px, 6vw, 72px); letter-spacing: -.04em; }
.hero p:nth-of-type(2) { max-width: 780px; color: #bbb; line-height: 1.8; }
.mode-tabs { display: flex; gap: 8px; margin-top: 24px; }
.mode-tab { border: 1px solid #ffffff2b; border-radius: 999px; background: #171717; color: #aaa; padding: 11px 16px; font-weight: 800; }
.mode-tab.active { border-color: #d9ff00; background: #d9ff00; color: #111; }
.workspace[hidden] { display: none !important; }
.work { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 18px; max-width: 1200px; margin: auto; padding: 0 22px 50px; }
.preview { position: relative; display: grid; aspect-ratio: 16 / 9; place-items: center; overflow: hidden; border: 1px solid #ffffff22; border-radius: 18px; background: #181818; }
.preview canvas { display: block; width: 100%; height: 100%; }
.preview label { position: absolute; inset: 0; display: grid; place-items: center; background: radial-gradient(circle, #202020, #111); font-weight: 800; cursor: pointer; }
.transport { display: grid; grid-column: 1; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; }
.transport button, .panel button, .panel select, .panel input[type="text"] { border: 1px solid #ffffff33; border-radius: 10px; background: #202020; color: #fff; padding: 10px; }
.transport input { width: 100%; accent-color: #d9ff00; }
.panel { display: flex; grid-row: 1 / 3; grid-column: 2; flex-direction: column; gap: 12px; }
.panel section { border: 1px solid #ffffff22; border-radius: 16px; background: #171717; padding: 14px; }
.panel h2 { margin: 0 0 12px; color: #aaa; font-size: 12px; letter-spacing: .08em; }
.panel label { display: grid; gap: 6px; margin: 10px 0; color: #bbb; font-size: 12px; }
.panel input[type="range"] { width: 100%; accent-color: #d9ff00; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.grid button { padding: 9px 5px; font-size: 10px; }
.grid button.active { border-color: #d9ff00; background: #d9ff00; color: #111; }
.themes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.theme { height: 34px; border-radius: 999px !important; padding: 0 !important; }
.small { grid-template-columns: repeat(3, 1fr); }
.primary { width: 100%; border-color: #d9ff00 !important; background: #d9ff00 !important; color: #111 !important; font-weight: 800; }
.primary:disabled, .transport button:disabled { opacity: .4; cursor: not-allowed; }
.panel #status { min-height: 1.3rem; margin-bottom: 0; color: #aaa; font-size: 11px; line-height: 1.5; }
.audio-export-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.audio-export-actions button { font-weight: 800; }

.designer-workspace { max-width: 1200px; margin: 0 auto; padding: 0 22px 56px; }
.designer-layout { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 18px; }
.designer-panel, .designer-canvas-panel { border: 1px solid #ffffff22; border-radius: 18px; background: #171717; }
.designer-panel { align-self: start; padding: 16px; }
.designer-heading { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid #ffffff18; }
.designer-heading span, .designer-group h3, .designer-export span { color: #888; font-size: 10px; letter-spacing: .14em; }
.designer-heading h2, .designer-export h2 { margin: 4px 0 0; font-size: 18px; }
.icon-control, .designer-actions button, .design-wave, .design-preset, .export-buttons button, .design-import { border: 1px solid #ffffff2b; border-radius: 10px; background: #202020; color: #f5f3ee; }
.icon-control { width: 38px; height: 38px; font-size: 18px; }
.designer-group { padding: 16px 0; border-bottom: 1px solid #ffffff18; }
.designer-group h3 { margin: 0 0 12px; }
.design-wave-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px; }
.design-wave { display: flex; align-items: center; justify-content: flex-start; gap: 8px; padding: 10px; font-size: 15px; }
.design-wave span { color: #bbb; font-size: 11px; }
.design-wave.active { border-color: #d9ff00; background: #d9ff00; color: #111; }
.design-wave.active span { color: #111; }
.design-ranges label, .two-col label { display: grid; grid-template-columns: 1fr auto; gap: 7px; margin: 12px 0; color: #bbb; font-size: 12px; }
.design-ranges input { grid-column: 1 / -1; width: 100%; accent-color: #d9ff00; }
.design-ranges output { color: #d9ff00; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.two-col label { display: flex; flex-direction: column; }
.two-col select { border: 1px solid #ffffff2b; border-radius: 8px; background: #202020; color: #fff; padding: 9px; }
.color-control { display: flex; align-items: center; gap: 8px; border: 1px solid #ffffff2b; border-radius: 8px; background: #202020; padding: 5px 8px; }
.color-control input { width: 30px; height: 28px; border: 0; background: transparent; padding: 0; }
.color-control span { font-size: 10px; }
.designer-switches { display: grid; gap: 8px; padding: 14px 0; }
.designer-switches label { display: flex; align-items: center; justify-content: space-between; color: #bbb; font-size: 12px; }
.designer-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.designer-actions button, .design-import { min-height: 42px; padding: 10px; }
.designer-actions button:first-child { grid-column: 1 / -1; border-color: #d9ff00; background: #d9ff00; color: #111; font-weight: 800; }
.design-import { display: grid; place-items: center; font-size: 12px; text-align: center; }
.designer-canvas-panel { overflow: hidden; }
.designer-canvas-head { display: flex; align-items: center; justify-content: space-between; height: 52px; padding: 0 16px; border-bottom: 1px solid #ffffff18; color: #aaa; font-size: 10px; letter-spacing: .08em; }
.designer-canvas-head i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #d9ff00; box-shadow: 0 0 12px #d9ff00; }
.designer-canvas-head strong { color: #777; font-size: 10px; }
.designer-canvas-wrap { position: relative; height: min(58vw, 620px); min-height: 360px; background: #151515; }
.designer-canvas-wrap canvas { display: block; width: 100%; height: 100%; }
.designer-canvas-wrap.grid-on { background-image: linear-gradient(#ffffff08 1px, transparent 1px), linear-gradient(90deg, #ffffff08 1px, transparent 1px); background-size: 40px 40px; }
.preset-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 12px; border-top: 1px solid #ffffff18; }
.design-preset { padding: 12px; text-align: left; }
.design-preset strong, .design-preset span { display: block; }
.design-preset span { margin-top: 4px; color: #888; font-size: 10px; }
.designer-export { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px; border-top: 1px solid #ffffff18; }
.designer-export p { margin: 5px 0 0; color: #888; font-size: 11px; }
.export-buttons { display: flex; gap: 8px; }
.export-buttons button { min-width: 78px; padding: 10px; }
.export-buttons strong, .export-buttons span { display: block; }
.export-buttons span { margin-top: 4px; color: #888; font-size: 9px; }
.design-status { min-height: 20px; margin: 0; padding: 0 16px 12px; color: #d9ff00; font-size: 11px; }

@media (max-width: 850px) {
  .work { grid-template-columns: 1fr; }
  .panel { grid-row: auto; grid-column: 1; }
  .transport { grid-column: 1; }
  .preview { min-height: 280px; }
  .designer-layout { grid-template-columns: 1fr; }
  .designer-panel { order: 2; }
  .designer-canvas-panel { order: 1; }
  .designer-canvas-wrap { height: 62vw; min-height: 300px; }
  .preset-row { grid-template-columns: repeat(2, 1fr); }
  .designer-export { align-items: flex-start; flex-direction: column; }
  .export-buttons { width: 100%; }
  .export-buttons button { flex: 1; }
}

@media (max-width: 520px) {
  .mode-tabs { display: grid; grid-template-columns: 1fr 1fr; }
  .mode-tab { padding: 10px 8px; font-size: 11px; }
  .designer-workspace, .work { padding-right: 12px; padding-left: 12px; }
  .designer-canvas-head strong { display: none; }
  .designer-canvas-wrap { min-height: 260px; }
  .two-col { grid-template-columns: 1fr; }
  .preset-row { grid-template-columns: 1fr 1fr; }
  .export-buttons { display: grid; grid-template-columns: repeat(3, 1fr); }
  .export-buttons button { min-width: 0; padding: 9px 5px; }
  .audio-export-actions { grid-template-columns: 1fr; }
}