.sound-header{background:var(--navy);color:white}.sound-top{max-width:1440px;margin:auto;padding:24px 30px;display:flex;justify-content:space-between;gap:24px;border-bottom:1px solid #ffffff26}.sound-top nav{display:flex;gap:24px;align-items:center}.sound-top nav a{color:#ccdfdf;text-decoration:none}.sound-hero{max-width:1440px;margin:auto;padding:42px 30px 55px}.sound-hero h1{font-size:clamp(32px,4vw,54px);letter-spacing:-1.7px;line-height:1.12;margin:13px 0}.sound-hero em{color:#72dfce;font-family:Georgia,serif;font-weight:400}.sound-hero>p:not(.eyebrow){color:#c8dadd;max-width:660px;font-size:18px}.sound-tag{display:inline-block;font-size:12px;border:1px solid #50717b;padding:5px 12px;border-radius:20px}.sound-main{max-width:1440px;margin:0 auto;padding:0 30px 48px}.language-panel{margin-top:-20px;position:relative;border:1px solid var(--stroke);background:white;padding:25px;border-radius:16px;box-shadow:0 8px 30px #132f3910}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.section-heading h2{margin:4px 0 18px;font-size:23px}.eyebrow.light{color:var(--teal)}#selection-count{font-size:20px;color:var(--teal);white-space:nowrap}fieldset{margin:0;padding:0;border:0}#languages{display:flex;flex-wrap:wrap;gap:9px}.language-choice{display:flex;align-items:center;gap:8px;padding:9px 12px;border:1px solid var(--stroke);border-radius:8px;cursor:pointer}.language-choice:has(input:checked){border-color:var(--teal);background:#e7f5f0}.language-choice input{accent-color:var(--teal);width:17px;height:17px}.language-choice small{font-size:10px;color:var(--muted)}.muted{color:#526975;font-size:13px}.workspace{display:grid;grid-template-columns:265px 1fr;gap:30px;margin-top:35px}.guide h2{font-size:25px;line-height:1.2}.guide p{font-size:14px}.guide-example{border:1px solid #bed8d1;background:#e9f3ef;border-radius:12px;padding:16px;display:flex;align-items:center;gap:18px;margin:24px 0}.guide-example>span{font-size:60px;color:var(--teal)}.guide-example p{margin:6px 0}.symbol-panel{min-width:0}.symbol-tools{display:flex;gap:14px;flex-wrap:wrap}.symbol-tools label{display:grid;gap:6px;font-size:12px;font-weight:650;flex:1}.symbol-tools input,.symbol-tools select{width:100%;min-width:170px;border:1px solid var(--stroke);padding:11px;background:white;border-radius:8px}.symbol-group h3{font-size:14px;color:var(--muted);margin:22px 0 9px}.symbol-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px}.symbol-button{position:relative;background:white;border:1px solid var(--stroke);border-radius:12px;min-height:108px;padding:12px 8px;color:var(--text);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;transition:transform .15s,border-color .15s}.symbol-button:hover{border-color:var(--teal);transform:translateY(-2px);background:#eef9f5}.symbol-button .hangul{font-size:35px;line-height:1.25}.symbol-button small{font-size:12px;color:var(--muted)}.symbol-button .ready-dot{position:absolute;top:9px;right:9px;background:var(--teal);width:7px;height:7px;border-radius:50%}.method{margin-top:45px;padding:28px;border-top:1px solid var(--stroke);background:#fff;border-radius:12px}.method p{max-width:1000px}.method li{margin:8px 0}.sound-footer{border-top:1px solid var(--stroke);padding:25px 30px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:13px}.quiet,.primary{border:1px solid var(--stroke);background:#fff;border-radius:7px;padding:9px 14px;color:var(--text);font-size:13px}.primary{background:var(--teal);border-color:var(--teal);color:white}button:disabled{cursor:not-allowed;opacity:.5}dialog{border:0;border-radius:18px;padding:26px;max-width:1100px;width:calc(100% - 40px);max-height:90dvh;color:var(--text);box-shadow:0 24px 100px #0005}dialog::backdrop{background:#0d2331ad;backdrop-filter:blur(3px)}.dialog-top,.compare-heading,.dialog-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px}.dialog-bottom{margin-top:24px;border-top:1px solid var(--stroke);padding-top:18px}.sound-detail{display:grid;grid-template-columns:125px 1fr;gap:22px;margin:18px 0 28px}.large-symbol{display:grid;place-content:center;border-radius:14px;background:#e7f5f0;font-size:70px;color:var(--teal);align-self:start;min-height:125px;text-align:center}.large-symbol small{font-size:18px}.sound-detail h2{margin:0 0 8px;font-size:25px}.sound-detail ol{padding-left:22px;margin-bottom:8px}.sound-detail li{margin:6px 0}.articulation{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.articulation span{background:#eff3f4;border-radius:20px;padding:4px 10px;font-size:12px}.visual-guide{display:flex;gap:12px;align-items:center;background:#f4f7f6;border-radius:10px;padding:12px;margin-top:12px}.visual-guide svg{width:160px;height:95px;flex-shrink:0}.visual-guide p{font-size:13px;margin:0}.comparison-table{width:100%;border-collapse:collapse;font-size:14px}.comparison-table th{text-align:left;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;background:#f1f5f4}.comparison-table th,.comparison-table td{padding:13px 10px;border-bottom:1px solid var(--stroke);vertical-align:top}.comparison-table .ipa{font-size:22px}.comparison-table td small{display:block;color:var(--muted);max-width:230px}.status-pill{font-size:11px;padding:4px 7px;border-radius:5px;background:#e7f5ed;display:inline-block}.status-pill.approx{background:#fff0d5;color:#80510a}.status-pill.pending{background:#edf0f2;color:#54616a}.compare-heading{border-top:1px solid var(--stroke);padding-top:15px}.compare-heading h3{font-size:20px}.audio-play{white-space:nowrap}.error{padding:20px;border:1px solid #b75f40;border-radius:9px;color:#8f351d}.sound-detail .muted{margin-top:8px}#audio-status{min-height:24px;font-size:13px;color:var(--teal)}
@media(max-width:700px){.sound-top{padding:18px;flex-direction:column;gap:12px}.sound-top nav{font-size:13px;gap:20px}.sound-hero{padding:26px 18px 42px}.sound-main{padding:0 16px 30px}.language-panel{padding:18px}.workspace{grid-template-columns:1fr;gap:18px}.guide-example{margin:12px 0}.guide>p,.guide>a{display:none}.guide h2{font-size:21px;margin:6px 0}.guide .eyebrow{display:block}.symbol-grid{grid-template-columns:repeat(auto-fill,minmax(75px,1fr))}.symbol-button{min-height:94px}.sound-footer{flex-direction:column}.method{padding:20px}.language-choice{font-size:13px}.language-choice small{display:none}dialog{padding:17px;width:calc(100% - 16px);max-height:94dvh}.sound-detail{grid-template-columns:70px 1fr;gap:13px}.large-symbol{min-height:80px;font-size:44px}.large-symbol small{font-size:13px}.sound-detail h2{font-size:20px}.visual-guide{flex-direction:column;align-items:flex-start}.compare-heading{align-items:flex-start;flex-direction:column;gap:0}.comparison-table thead{display:none}.comparison-table,.comparison-table tbody{display:block}.comparison-table tr{display:block;border:1px solid var(--stroke);border-radius:10px;margin:12px 0;padding:12px}.comparison-table td{display:block;border:0;padding:4px 0}.comparison-table td:first-child{font-size:18px;font-weight:700}.comparison-table td small{max-width:none}.comparison-table td[data-label]:before{content:attr(data-label) ' · ';font-size:12px;color:var(--muted)}.comparison-table td:nth-child(2){display:flex;align-items:center;gap:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.sound-top{flex-wrap:wrap;gap:1rem}.sound-locale{display:flex;align-items:center;gap:.5rem;font-size:.85rem}.sound-locale select{max-width:11rem;padding:.5rem;border:1px solid #8ca5aa;border-radius:.4rem;background:white;color:#173b40}#translation-note:not([hidden]){padding:1rem;border-inline-start:3px solid #00796c;background:#eef6f3;color:#173b40}html[dir=rtl] .ipa,html[dir=rtl] .hangul{direction:ltr;unicode-bidi:isolate}

/* Source-bound comparison review. */
.phonetic-intro-note{padding:18px 22px;border-left:3px solid var(--green,#00796c);line-height:1.65}
.phonetic-profiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}
.phonetic-profiles article,.phonetic-contrast{padding:20px;border:1px solid var(--stroke,#d5e0dc);border-radius:12px}
.phonetic-profiles h3{font-size:1rem;line-height:1.45;margin-top:0}
.phonetic-profiles p{font-size:.9rem;line-height:1.65}
.phonetic-evidence summary{cursor:pointer;line-height:1.6;text-decoration:underline;text-underline-offset:3px}
.phonetic-evidence p{font-size:.87rem;line-height:1.65;margin:12px 0}
.phonetic-evidence a{overflow-wrap:anywhere}
.phonetic-baseline-note{border-left:3px solid var(--green,#00796c);padding-left:12px;font-size:.9rem;line-height:1.65}
#phonetic-sources>li{margin:20px 0}#phonetic-sources small{display:block;margin-top:7px}
.comparison-table td{vertical-align:top}.comparison-table th:first-child{width:21%}.comparison-table td:nth-child(4){min-width:220px}
@media(max-width:780px){.phonetic-profiles{grid-template-columns:1fr}.comparison-table td:nth-child(4){min-width:0}}

/* Context choices for the source-reviewed vowel letters. */
.vowel-evidence{margin:24px 0;padding:22px;border:1px solid var(--stroke);border-radius:14px}
.vowel-evidence-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.vowel-evidence h3{margin:0 0 10px}.vowel-evidence p{line-height:1.65}
.vowel-variants{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:18px 0}
.vowel-variants article{padding:16px;border:1px solid var(--stroke);border-radius:10px}
.vowel-variants .ipa{font-size:1.5rem}.vowel-variants p{font-size:.92rem;margin:10px 0}.vowel-variants small{font-size:.75rem}
.vowel-example-choices{display:flex;gap:9px;flex-wrap:wrap;margin:18px 0}
.vowel-example-choices [aria-pressed="true"]{outline:2px solid var(--teal);outline-offset:2px}
.vowel-example-explanation{border-left:3px solid var(--teal);padding:8px 14px}
.vowel-reviewed-mark{position:absolute;top:7px;right:8px;color:var(--teal);font-size:14px}
@media(max-width:700px){.vowel-evidence{padding:16px}.vowel-variants{grid-template-columns:1fr}}

.phonetic-lessons{margin-top:60px;border-top:1px solid var(--stroke);padding-top:32px;scroll-margin-top:24px}
.phonetic-lessons .section-heading{align-items:flex-start}.phonetic-lessons h2{font-size:clamp(25px,3vw,36px);letter-spacing:-.5px;margin-bottom:12px}
.phonetic-lessons .section-heading p{max-width:770px;margin-top:0;line-height:1.65}
#lesson-progress{padding:8px 12px;border:1px solid var(--stroke);border-radius:20px;white-space:nowrap;color:var(--teal);font-size:.85rem}
.lesson-scope{border-left:3px solid var(--teal);padding:8px 16px;line-height:1.65;max-width:1000px;font-size:.92rem}
.lesson-tools{display:flex;align-items:end;gap:14px;flex-wrap:wrap;margin:26px 0 14px}
.lesson-tools label{display:grid;gap:7px;font-size:.85rem;flex:1;min-width:170px}.lesson-tools label:first-child{flex:1.5}
.lesson-tools input,.lesson-tools select{width:100%;padding:11px 12px;border:1px solid var(--stroke);border-radius:8px;background:var(--white,#fff);color:var(--text)}
#lesson-count{font-size:.9rem;color:var(--muted)}
.lesson-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start}
.phonetic-lesson{padding:24px;border:1px solid var(--stroke);border-radius:14px;background:var(--white,#fff);scroll-margin-top:20px;min-width:0}
.phonetic-lesson:target{border-color:var(--teal);box-shadow:0 0 0 2px var(--teal)}
.lesson-meta{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.75rem;color:var(--teal);font-weight:650;letter-spacing:.03em}
.lesson-profile{font-size:.82rem;line-height:1.6;color:var(--muted);margin:0 0 16px}
.lesson-recording{margin-top:16px;padding-top:14px;border-top:1px solid var(--stroke)}
.lesson-recording-play{width:100%;font-size:.82rem;min-height:44px}
.lesson-recording-play[aria-pressed="true"]{border-color:var(--teal);color:var(--teal)}
.lesson-recording-status,.lesson-audio-missing{font-size:.75rem;line-height:1.55;color:var(--muted)}
.lesson-audio-missing{margin:12px 0 0}
.lesson-recording-source summary{font-size:.75rem;cursor:pointer;line-height:1.55}
.lesson-recording-source p{font-size:.75rem;line-height:1.6;overflow-wrap:anywhere}
.lesson-audio-overview{padding:14px 18px;border:1px solid var(--stroke);border-radius:10px;font-size:.85rem;line-height:1.65}
.lesson-audio-overview p{margin:6px 0}
.phonetic-lesson h3{font-size:1.35rem;line-height:1.35;margin:16px 0 20px}
.lesson-words{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.lesson-word{padding:15px;border:1px solid var(--stroke);border-radius:9px;min-width:0}.lesson-word>strong{display:block;font-size:1.6rem;line-height:1.4;overflow-wrap:anywhere}.lesson-word>span{display:block;font-size:.88rem;margin:5px 0 14px;line-height:1.55}
.lesson-target{border-top:1px solid var(--stroke);padding-top:10px}.lesson-target .ipa{font-size:1.25rem;font-weight:500;display:block;overflow-wrap:anywhere}.lesson-target small{display:block;font-size:.78rem;line-height:1.55;margin-top:5px;color:var(--muted)}
.lesson-question{line-height:1.65;margin:22px 0 16px}.lesson-question strong{display:block;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--teal);margin-bottom:6px}
.lesson-answer,.lesson-sources{padding:12px 0;border-top:1px solid var(--stroke)}
.lesson-answer summary,.lesson-sources summary{cursor:pointer;font-size:.92rem;line-height:1.5}.lesson-answer summary{font-weight:650}.lesson-answer p,.lesson-sources p{line-height:1.7;font-size:.92rem}.lesson-limit{border-left:2px solid var(--stroke);padding-left:12px;color:var(--muted)}
.lesson-sources h4{font-size:1rem;margin-bottom:8px}.lesson-sources a{overflow-wrap:anywhere}.lesson-sources p{font-size:.84rem}
.lesson-actions{border-top:1px solid var(--stroke);padding-top:16px;margin-top:2px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.lesson-actions>a{font-size:.8rem}.lesson-actions [aria-pressed="true"]{border-color:var(--teal);color:var(--teal)}
.lesson-footer{margin-top:24px;display:flex;gap:16px;flex-wrap:wrap;align-items:center;font-size:.85rem}.lesson-footer>p{flex-basis:100%;line-height:1.65;margin-bottom:0;color:var(--muted)}
.lesson-empty{grid-column:1/-1;padding:20px;border:1px solid var(--stroke);border-radius:12px}
@media(max-width:900px){.lesson-cards{grid-template-columns:1fr}.phonetic-lessons .section-heading{flex-direction:column;gap:5px}}
@media(max-width:450px){.phonetic-lesson{padding:17px}.lesson-words{grid-template-columns:1fr}.lesson-tools label{min-width:100%;}.lesson-tools .quiet{width:100%}}