body { background: #ece6da; color: var(--ink); }
.sound-header { background: var(--paper-hi); border-bottom: 2px solid var(--ink); padding: 20px clamp(20px,5vw,72px) 48px; }
.sound-header nav { display: flex; flex-wrap: wrap; gap: 24px; margin-bottom: 44px; font-weight: 700; }
.sound-header h1 { font: 900 clamp(48px,8vw,100px)/1 var(--font-serif); margin: 0 0 24px; }
.sound-header > p:last-child { font-size: clamp(17px,2vw,23px); line-height: 1.6; max-width: 760px; }
.sound-main { max-width: 1400px; margin: auto; padding: 42px clamp(20px,5vw,72px); }
.sound-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 2px; background: var(--ink); border: 2px solid var(--ink); }
.sound-grid article { min-width: 0; background: var(--paper-hi); }
.sound-grid video { display: block; width: 100%; aspect-ratio: 9/12; object-fit: contain; background: #171411; }
.sound-body { padding: 22px; }
.sound-body h2 { font: 800 clamp(24px,3vw,35px)/1.2 var(--font-serif); margin: 6px 0 16px; }
.sound-body p { line-height: 1.6; }
.sound-modes { display: flex; gap: 8px; margin: 18px 0; }
.sound-modes button { cursor: pointer; padding: 10px 16px; min-height: 44px; border: 2px solid var(--ink); background: transparent; color: var(--ink); font: inherit; font-weight: 700; }
.sound-modes button[aria-pressed="true"] { background: var(--ink); color: var(--paper-hi); }
.sound-modes button:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }
.sound-body audio { width: 100%; }
.sound-timing { font: 12px/1.7 var(--font-mono); color: var(--ink-2); }
.sound-back { display: inline-block; min-height: 44px; padding: 10px 0; font-weight: 800; text-underline-offset: 4px; }
.sound-note { margin-top: 30px; line-height: 1.6; }
@media (max-width:1000px) { .sound-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width:680px) { .sound-grid { grid-template-columns: 1fr; } }