:root{--color-bg:#f7f8f6;--color-surface:#fff;--color-surface-soft:#eef5f0;--color-text:#202426;--color-muted:#626a6d;--color-border:#dfe4e1;--color-green:#1c5b4c;--color-green-soft:#e9f1ed;--color-amber:#c89322;--color-amber-soft:#f5edda;--color-red:#d64332;--color-red-soft:#f8e7e4;--radius-sm:8px;--shadow-soft:0 18px 44px #1f2a2614;--bg:var(--color-bg);--panel:var(--color-surface);--text:var(--color-text);--muted:var(--color-muted);--border:var(--color-border);--accent:var(--color-green);--accent-soft:var(--color-green-soft);--shadow:var(--shadow-soft);color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}a{color:inherit}button,input,textarea,select{font:inherit}h1,p{margin:0}h1{max-width:720px;font-size:clamp(2rem,5vw,3.25rem);line-height:1.05}#root{min-height:100vh}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--panel)}.brand-link{min-height:72px;color:var(--text);align-items:center;gap:16px;padding:0 32px;text-decoration:none;display:inline-flex}.brand-link__logo{object-fit:contain;flex:none;width:52px;height:52px}.brand-link__title{font-size:clamp(1.45rem,3.2vw,2.15rem);font-weight:800;line-height:1}.brand-link__badge{color:var(--accent);font-size:clamp(1rem,2vw,1.35rem);font-weight:800;line-height:1}.app-main{width:min(100%,1040px);margin:0 auto;padding:72px 32px}.app-shell--dashboard .app-main{width:100%;padding:0}.app-main:has(>.practice-workspace){width:100%;padding-left:0;padding-right:0}.page-stack{gap:24px;display:grid}.eyebrow{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.78rem;font-weight:700}.page-header{gap:10px;display:grid}.page-title-with-flag{align-items:center;gap:14px;display:flex}.page-title-with-flag span{background:var(--accent-soft);border-radius:50%;flex:none;place-items:center;width:56px;height:56px;font-size:1.35rem;display:inline-grid}.route-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;max-width:520px;display:grid}.route-card{border:1px solid var(--border);background:var(--panel);min-height:112px;box-shadow:var(--shadow);color:var(--text);border-radius:8px;align-items:center;padding:24px;font-weight:700;text-decoration:none;display:flex}.language-selection{max-width:860px}.selection-panel{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);box-shadow:var(--shadow-soft);padding:14px}.selection-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.selection-card{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);min-height:132px;color:var(--text);grid-template-columns:auto auto;justify-content:center;align-items:center;gap:18px;padding:28px 22px;text-decoration:none;transition:border-color .16s,box-shadow .16s,transform .16s;display:grid}.selection-card:hover,.selection-card:focus-visible{border-color:color-mix(in srgb, var(--card-accent) 50%, var(--border));transform:translateY(-1px);box-shadow:0 16px 36px #1f2a261a}.selection-card:focus-visible{outline:3px solid var(--accent-soft);outline-offset:3px}.selection-card--green{--card-accent:var(--color-green);--card-accent-soft:var(--color-green-soft)}.selection-card--amber{--card-accent:var(--color-amber);--card-accent-soft:var(--color-amber-soft)}.selection-card--red{--card-accent:var(--color-red);--card-accent-soft:var(--color-red-soft)}.icon-badge{background:var(--card-accent-soft);width:58px;height:58px;color:var(--card-accent);border-radius:50%;place-items:center;font-size:1.75rem;font-weight:800;display:inline-grid}.selection-card__content{min-width:0;display:grid}.selection-card__label{color:var(--card-accent);font-size:1.65rem;font-weight:800;line-height:1.05}.beta-dashboard{background:var(--bg);min-height:100vh}.beta-dashboard__hero{border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--panel) 76%, var(--accent-soft))}.beta-dashboard__brand{align-items:center;gap:18px;width:min(100%,1040px);min-height:92px;margin:0 auto;padding:20px 32px;display:flex}.beta-dashboard__logo{object-fit:contain;border-radius:0;flex:none;width:50px;height:50px}.beta-dashboard__title-row{flex-wrap:wrap;align-items:baseline;gap:10px;min-width:0;display:flex}.beta-dashboard__title-row h1{max-width:none;color:var(--text);font-size:clamp(1.55rem,2.8vw,2rem)}.beta-dashboard__title-row span{color:var(--accent);font-size:clamp(1.1rem,2vw,1.5rem);font-weight:800}.beta-dashboard__content{gap:18px;width:min(100%,1040px);margin:0 auto;padding:28px 32px 56px;display:grid}.dashboard-section{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);box-shadow:var(--shadow-soft);gap:16px;padding:18px;display:grid}.dashboard-section--training{gap:12px;padding:14px 18px 18px}.dashboard-section--training h2,.dashboard-section-heading{color:var(--text);margin:0;font-size:1.35rem;line-height:1.2}.dashboard-section--training h2{text-align:center}.dashboard-section-heading{align-items:center;gap:12px;min-height:42px;display:inline-flex}.dashboard-section__header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 18px;display:flex}.dashboard-section__header-link{color:var(--accent);cursor:pointer;font:inherit;background:0 0;border:0;padding:0;font-weight:800;text-decoration:none}.dashboard-section__header-link:hover,.dashboard-section__header-link:focus-visible{text-decoration:underline}.dashboard-section-heading>span{border:1px solid color-mix(in srgb, var(--accent) 28%, var(--border));border-radius:var(--radius-sm);background:var(--accent-soft);width:34px;height:34px;color:var(--accent);flex:none;place-items:center;font-size:1rem;line-height:1;display:inline-grid}.dashboard-section-heading svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:20px;height:20px;display:block}.dashboard-section-heading svg circle:first-child,.dashboard-section-heading svg path:first-child{fill:color-mix(in srgb, currentColor 12%, transparent)}.dashboard-section-subheading{color:var(--muted);margin:0;font-size:.95rem;font-weight:800}.dashboard-training-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.dashboard-language-card{--language-accent:var(--accent);--language-accent-soft:var(--accent-soft);border:1px solid color-mix(in srgb, var(--language-accent) 34%, var(--border));border-radius:var(--radius-sm);background:var(--language-accent-soft);min-height:74px;color:var(--language-accent);grid-template-columns:auto auto;justify-content:center;align-items:center;gap:14px;padding:12px 18px;text-decoration:none;transition:border-color .16s,box-shadow .16s,transform .16s;display:grid}.dashboard-language-card--green{--language-accent:var(--color-green);--language-accent-soft:var(--color-green-soft)}.dashboard-language-card--amber{--language-accent:var(--color-amber);--language-accent-soft:var(--color-amber-soft)}.dashboard-language-card:hover,.dashboard-language-card:focus-visible{border-color:color-mix(in srgb, var(--language-accent) 56%, var(--border));transform:translateY(-1px);box-shadow:0 16px 36px #1f2a2629}.dashboard-language-card:focus-visible{outline:3px solid var(--language-accent-soft);outline-offset:3px}.dashboard-language-card__icon{border:2px solid color-mix(in srgb, var(--language-accent) 34%, var(--panel));background:var(--panel);width:42px;height:42px;box-shadow:0 8px 18px #1f2a2624, inset 0 0 0 1px color-mix(in srgb, var(--panel) 80%, transparent);border-radius:50%;place-items:center;font-size:1.25rem;display:inline-grid}.dashboard-language-card__label{color:var(--language-accent);font-size:clamp(1.3rem,2.4vw,1.65rem);font-weight:800;line-height:1}.dashboard-grid{gap:24px;display:grid}.dashboard-grid--intro{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}.dashboard-section--announcement-feature{gap:16px}.announcement-feature{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:start;gap:18px;display:grid}.announcement-feature__copy{align-content:start;gap:12px;min-width:0;display:grid}.announcement-feature__copy h3{color:var(--text);margin:0;font-size:clamp(1.2rem,2.2vw,1.6rem);line-height:1.15}.announcement-feature__copy ul{gap:8px;margin:0;padding:0;list-style:none;display:grid}.announcement-feature__copy li{color:var(--text);grid-template-columns:auto minmax(0,1fr);align-items:start;gap:9px;font-size:.95rem;line-height:1.35;display:grid}.announcement-feature__copy li:before{content:"";background:var(--accent);border-radius:50%;width:7px;height:7px;margin-top:.45em}.dashboard-video-card{aspect-ratio:16/9;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--accent-soft);position:relative;overflow:hidden}.dashboard-video-card iframe{z-index:2;background:#f2f4f1;border:0;width:100%;height:100%;position:absolute;inset:0}.dashboard-video-card__fallback{color:var(--text);background:#f2f4f1;place-items:center;padding:24px;display:grid;position:absolute;inset:0}.dashboard-video-card__fallback strong{max-width:calc(100% - 48px);font-size:clamp(1.2rem,2.5vw,1.9rem);line-height:1.15;position:absolute;bottom:24px;left:24px}.dashboard-video-card__waveform{justify-content:center;align-items:center;gap:3px;width:min(78%,420px);height:88px;display:flex}.dashboard-video-card__waveform span{background:var(--accent);border-radius:999px;width:3px}.dashboard-video-card__waveform span:nth-child(4n+1){height:22px}.dashboard-video-card__waveform span:nth-child(4n+2){height:46px}.dashboard-video-card__waveform span:nth-child(4n+3){height:66px}.dashboard-video-card__waveform span:nth-child(4n+4){height:34px}.dashboard-video-card__play{border-radius:var(--radius-sm);background:var(--color-red);width:72px;height:72px;color:var(--panel);place-items:center;font-size:1.6rem;line-height:1;display:inline-grid;position:absolute}.announcement-list{gap:12px;display:grid}.announcement-card{border:1px solid color-mix(in srgb, var(--accent) 18%, var(--border));border-radius:var(--radius-sm);background:color-mix(in srgb, var(--accent-soft) 42%, var(--panel));gap:12px;padding:14px;display:grid}.announcement-card:first-child{padding-top:14px}.announcement-card:last-child{padding-bottom:14px}.announcement-card__date{border:1px solid color-mix(in srgb, var(--accent) 18%, var(--border));background:var(--panel);width:fit-content;min-height:26px;color:var(--accent);letter-spacing:0;border-radius:999px;align-items:center;padding:4px 8px;font-size:.78rem;font-weight:900;display:inline-flex}.announcement-card h3,.office-hours-card h3,.tracker-card h3{color:var(--text);margin:0;font-size:1.05rem;line-height:1.2}.announcement-card ul,.tracker-card ul,.office-hours-card__recordings ul{gap:8px;margin:0;padding:0;list-style:none;display:grid}.announcement-card li,.tracker-card li,.office-hours-card__recordings li{color:var(--text);font-size:.95rem;line-height:1.35}.announcement-card li{grid-template-columns:auto minmax(0,1fr);align-items:start;gap:9px;display:grid}.announcement-card li:before{content:"";background:var(--accent);border-radius:50%;width:7px;height:7px;margin-top:.45em}.dashboard-outline-link{border:1px solid var(--color-red);border-radius:var(--radius-sm);background:var(--panel);width:fit-content;min-height:40px;color:var(--color-red);justify-content:center;align-items:center;gap:8px;padding:8px 12px;font-weight:800;text-decoration:none;display:inline-flex}.dashboard-outline-link:hover,.dashboard-outline-link:focus-visible{border-color:var(--color-red);background:var(--color-red);color:var(--panel)}.dashboard-outline-link--watch{border-color:color-mix(in srgb, var(--color-red) 78%, var(--text));background:var(--color-red);width:100%;min-height:48px;color:var(--panel);box-shadow:0 14px 30px color-mix(in srgb, var(--color-red) 25%, transparent);padding:11px 16px;font-size:.98rem;font-weight:950}.dashboard-outline-link--watch span{background:var(--panel);width:26px;height:26px;color:var(--color-red);border-radius:999px;place-items:center;font-size:.76rem;display:inline-grid}.dashboard-outline-link--watch:hover,.dashboard-outline-link--watch:focus-visible{background:color-mix(in srgb, var(--color-red) 86%, black);color:var(--panel);transform:translateY(-1px)}.dashboard-outline-link--history-video{border-color:color-mix(in srgb, var(--accent) 34%, var(--border));background:color-mix(in srgb, var(--accent-soft) 48%, var(--panel));width:100%;min-height:44px;color:color-mix(in srgb, var(--accent) 72%, var(--text));padding:10px 14px;font-size:.95rem;font-weight:850}.dashboard-outline-link--history-video span{background:var(--panel);width:24px;height:24px;color:color-mix(in srgb, var(--accent) 72%, var(--text));border-radius:999px;place-items:center;font-size:.72rem;display:inline-grid}.dashboard-outline-link--history-video:hover,.dashboard-outline-link--history-video:focus-visible{border-color:color-mix(in srgb, var(--accent) 62%, var(--text));background:color-mix(in srgb, var(--accent-soft) 68%, var(--panel));color:color-mix(in srgb, var(--accent) 82%, var(--text));transform:translateY(-1px)}.office-hours-grid,.tracker-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.office-hours-card{--office-hours-accent:var(--accent);border:1px solid color-mix(in srgb, var(--office-hours-accent) 30%, var(--border));border-radius:var(--radius-sm);background:var(--panel);gap:16px;padding:18px;display:grid}.office-hours-card--green{--office-hours-accent:var(--color-green)}.office-hours-card--amber{--office-hours-accent:var(--color-amber)}.office-hours-card h3{color:var(--office-hours-accent);align-items:center;gap:8px;display:inline-flex}.office-hours-card p{color:var(--text);margin:0;font-weight:700}.office-hours-card__actions{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:8px;padding-bottom:14px;display:flex}.office-hours-card__actions a,.office-hours-card__actions button{border:1px solid color-mix(in srgb, var(--office-hours-accent) 42%, var(--border));border-radius:var(--radius-sm);background:var(--panel);min-height:40px;color:var(--office-hours-accent);cursor:pointer;font:inherit;justify-content:center;align-items:center;padding:8px 12px;font-size:.9rem;font-weight:800;text-decoration:none;display:inline-flex}.office-hours-card__actions a:hover,.office-hours-card__actions a:focus-visible,.office-hours-card__actions button:hover,.office-hours-card__actions button:focus-visible{background:color-mix(in srgb, var(--office-hours-accent) 8%, var(--panel))}.office-hours-card__recordings{gap:8px;display:grid}.office-hours-card__recordings>span{color:var(--muted);font-size:.9rem;font-weight:800}.office-hours-card__recordings a,.office-hours-card__recordings button{color:var(--text);cursor:pointer;font:inherit;text-align:left;background:0 0;border:0;padding:0;text-decoration:none;display:inline}.office-hours-card__recordings a:before,.office-hours-card__recordings button:before{content:"▷";color:var(--office-hours-accent);margin-right:8px}.office-hours-card__recordings a:hover,.office-hours-card__recordings a:focus-visible,.office-hours-card__recordings button:hover,.office-hours-card__recordings button:focus-visible,.dashboard-question-card:hover,.dashboard-question-card:focus-visible,.tracker-card a:hover,.tracker-card a:focus-visible{color:var(--accent);text-decoration:underline}.dashboard-question-list{gap:10px;display:grid}.dashboard-question-card{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:100%;min-height:52px;color:var(--text);cursor:pointer;font:inherit;text-align:left;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:10px;padding:10px 14px;display:grid}.dashboard-question-card:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}.dashboard-question-card__flag{background:var(--accent-soft);border-radius:50%;place-items:center;width:34px;height:34px;font-size:1rem;display:inline-grid}.dashboard-question-card__meta{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.dashboard-question-card__meta span{border:1px solid var(--border);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--panel) 78%, var(--bg));min-height:28px;color:var(--muted);align-items:center;padding:4px 8px;font-size:.85rem;font-weight:800;line-height:1;display:inline-flex}.dashboard-question-card__meta span:nth-child(2){border-color:color-mix(in srgb, var(--accent) 35%, var(--border));background:var(--accent-soft);color:var(--accent)}.dashboard-question-card strong{color:var(--text);text-overflow:ellipsis;white-space:nowrap;line-height:1.35;overflow:hidden}.dashboard-question-card--feed{align-items:start;min-height:0}.dashboard-question-card--feed strong{white-space:normal}.dashboard-question-card__feed-content{gap:6px;min-width:0;display:grid}.dashboard-question-card__tag{border:1px solid var(--border);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--panel) 78%, var(--bg));width:fit-content;min-height:28px;color:var(--muted);align-items:center;padding:4px 8px;font-size:.85rem;font-weight:800;line-height:1;display:inline-flex}.dashboard-modal{z-index:50;place-items:center;padding:32px;display:grid;position:fixed;inset:0}.dashboard-modal__scrim{cursor:pointer;background:#2024269e;border:0;position:absolute;inset:0}.dashboard-modal__panel{overscroll-behavior:contain;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);gap:18px;width:min(100%,860px);max-height:min(720px,100vh - 64px);padding:24px;display:grid;position:relative;overflow-y:auto;box-shadow:0 28px 72px #1f2a263d}.dashboard-modal__header{justify-content:space-between;align-items:start;gap:16px;display:flex}.dashboard-modal__header h2{color:var(--text);margin:0;font-size:clamp(1.45rem,3vw,2rem);line-height:1.1}.dashboard-modal__eyebrow{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px;font-size:.78rem;font-weight:800;display:block}.dashboard-modal__close{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:42px;height:42px;color:var(--text);cursor:pointer;flex:none;place-items:center;font-size:1.5rem;line-height:1;display:inline-grid}.dashboard-modal__close:hover,.dashboard-modal__close:focus-visible{border-color:var(--accent);color:var(--accent)}.dashboard-modal__recordings,.dashboard-modal__announcements{gap:18px;display:grid}.dashboard-modal__answer{gap:16px;display:grid}.dashboard-modal__questions{gap:18px;display:grid}.dashboard-modal__answer h3{color:var(--text);margin:0;font-size:1.2rem;line-height:1.25}.dashboard-modal__recordings p,.dashboard-modal__announcements p,.dashboard-modal__questions p,.dashboard-modal__answer p{color:var(--muted);margin:0;font-weight:700}.dashboard-modal__video-answer{aspect-ratio:16/9;border:1px solid var(--border);border-radius:var(--radius-sm);background:#f2f4f1;width:100%;position:relative;overflow:hidden}.dashboard-modal__video-answer iframe{border:0;width:100%;height:100%}.dashboard-modal__text-link{width:fit-content;color:var(--accent);cursor:pointer;font:inherit;text-align:left;background:0 0;border:0;padding:0;font-weight:800}.dashboard-modal__text-link:hover,.dashboard-modal__text-link:focus-visible{color:var(--color-red);text-decoration:underline}.dashboard-modal__recordings ul{gap:10px;margin:0;padding:0;list-style:none;display:grid}.dashboard-modal__recordings li{border:1px solid var(--border);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--panel) 78%, var(--bg));grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;padding:14px;display:grid}.dashboard-modal__recordings li>span{color:var(--accent);font-weight:800}.dashboard-modal__recordings li div{gap:2px;display:grid}.dashboard-modal__recordings li strong{color:var(--text)}.dashboard-modal__recordings li div span{color:var(--muted);font-size:.9rem;font-weight:700}.dashboard-modal__tracker{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.tracker-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.tracker-card{--tracker-accent:var(--accent);border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);align-content:start;gap:14px;padding:18px;display:grid}.tracker-card--red{--tracker-accent:var(--color-red)}.tracker-card--green{--tracker-accent:var(--color-green)}.tracker-card--amber{--tracker-accent:var(--color-amber)}.tracker-card h3{align-items:center;gap:10px;display:inline-flex}.tracker-card h3 span{border:1px solid color-mix(in srgb, var(--tracker-accent) 42%, var(--border));width:30px;height:30px;color:var(--tracker-accent);border-radius:50%;flex:none;place-items:center;font-size:.9rem;line-height:1;display:inline-grid}.tracker-card li{grid-template-columns:auto minmax(0,1fr);gap:8px;display:grid}.tracker-card li:before{content:"";background:var(--tracker-accent);border-radius:50%;width:10px;height:10px;margin-top:.35em}.tracker-card a{color:var(--accent);align-self:end;margin-top:4px;font-weight:800;text-decoration:none}.progression-page{max-width:980px}.tutorial-page,.practice-page{max-width:760px}.practice-workspace{background:var(--bg);grid-template-rows:minmax(0,1fr) auto;grid-template-columns:minmax(260px,320px) minmax(0,1fr);width:100%;height:calc(100vh - 72px);min-height:0;margin:-72px 0 0;display:grid;overflow:hidden}.practice-workspace--sidebar-closed{grid-template-columns:72px minmax(0,1fr)}.practice-sidebar{border-right:1px solid var(--border);background:color-mix(in srgb, var(--panel) 78%, var(--bg));grid-area:1/1;grid-template-rows:auto minmax(0,1fr);gap:14px;min-height:0;padding:24px 24px 18px 28px;display:grid;overflow:hidden}.practice-workspace--sidebar-closed .practice-sidebar{padding:18px 13px}.practice-sidebar__header{justify-content:space-between;align-items:start;gap:12px;display:flex}.practice-sidebar__header h2{color:var(--text);margin:0;font-size:1.45rem;line-height:1.1}.practice-sidebar__header span{color:var(--muted);font-size:.9rem;font-weight:700}.icon-button,.nav-arrow,.row-icon--button,.reveal-eye-button,.transcription-next-button,.symbols-tray__toggle,.play-button,.control-button{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);color:var(--text);cursor:pointer;font:inherit;place-items:center;font-weight:800;display:inline-grid}.icon-button{flex:none;width:44px;height:44px}.icon-button svg{stroke:currentColor;width:20px;height:20px}.practice-sidebar__list{align-content:start;gap:8px;min-height:0;padding-right:4px;display:grid;overflow-y:auto}.practice-sidebar__item{border-radius:var(--radius-sm);min-height:44px;color:var(--text);cursor:pointer;font:inherit;text-align:left;background:0 0;border:1px solid #0000;padding:10px 12px;font-weight:800}.practice-sidebar__item:hover,.practice-sidebar__item:focus-visible,.practice-sidebar__item--active{border-color:color-mix(in srgb, var(--color-red) 45%, var(--border));background:var(--panel)}.practice-stage{grid-area:1/2;align-content:start;gap:10px;min-height:0;padding:20px 32px 88px 48px;display:grid;overflow:hidden auto}.practice-session-bar{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.practice-exit{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:fit-content;min-height:42px;color:var(--text);justify-content:center;align-items:center;padding:10px 14px;font-weight:800;text-decoration:none;display:inline-flex}.practice-session-timer{border:1px solid var(--border);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--panel) 70%, var(--bg));min-height:42px;color:var(--muted);font-variant-numeric:tabular-nums;align-items:center;padding:10px 12px;font-size:.95rem;font-weight:800;display:inline-flex}.practice-title-row{align-items:center;gap:12px;display:flex}.practice-title-row h1{max-width:none;font-size:clamp(1.35rem,2.4vw,2rem)}.practice-target-phonemes{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px 12px;font-size:.9rem;font-weight:800;display:flex}.practice-target-phonemes__list{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.practice-target-phoneme{border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border));border-radius:var(--radius-sm);background:var(--accent-soft);min-width:32px;min-height:32px;color:var(--accent);cursor:pointer;place-items:center;padding:4px 8px;font-family:inherit;font-size:1rem;font-weight:800;line-height:1;display:inline-grid}.practice-target-phoneme:hover:not(:disabled),.practice-target-phoneme:focus-visible:not(:disabled){border-color:var(--accent);background:color-mix(in srgb, var(--accent) 18%, var(--surface));color:var(--text)}.practice-target-phoneme:focus-visible{outline:3px solid color-mix(in srgb, var(--accent) 35%, transparent);outline-offset:2px}.practice-target-phoneme:disabled{cursor:not-allowed;opacity:.45}.phoneme-audio-button-wrap{display:inline-grid;position:relative}.symbol-group__buttons .phoneme-audio-button-wrap{flex:0 0 42px}.phoneme-tutorial-popover{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:220px;color:var(--text);box-shadow:var(--shadow-soft);z-index:35;justify-items:start;gap:8px;padding:10px;font-size:.82rem;font-weight:700;line-height:1.2;display:grid;position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%)}.symbol-group:nth-child(3n+1) .phoneme-tutorial-popover{left:0;transform:none}.phoneme-tutorial-popover:after{content:"";border-right:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--panel);width:10px;height:10px;position:absolute;bottom:-6px;left:50%;transform:translate(-50%)rotate(45deg)}.symbol-group:nth-child(3n+1) .phoneme-tutorial-popover:after{left:21px}.practice-target-phonemes .phoneme-tutorial-popover{top:calc(100% + 8px);bottom:auto}.practice-target-phonemes .phoneme-tutorial-popover:after{border:0;border-top:1px solid var(--border);border-left:1px solid var(--border);top:-6px;bottom:auto}.phoneme-tutorial-popover span{color:var(--muted)}.phoneme-tutorial-popover__action{border:1px solid var(--accent);border-radius:var(--radius-sm);background:var(--accent);width:100%;min-height:32px;color:var(--panel);font:inherit;white-space:nowrap;cursor:pointer;padding:6px 10px;font-size:.82rem;font-weight:800}.phoneme-tutorial-popover__action:hover,.phoneme-tutorial-popover__action:focus-visible{background:color-mix(in srgb, var(--accent) 82%, var(--text))}.phoneme-tutorial-popover__action:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}.practice-target-phonemes__empty{color:var(--muted);font-weight:700}.phoneme-tutorial-modal{z-index:80;background:color-mix(in srgb, var(--text) 58%, transparent);place-items:center;padding:24px;display:grid;position:fixed;inset:0}.phoneme-tutorial-modal__dialog{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:min(920px,100%);box-shadow:var(--shadow-strong);gap:14px;padding:16px;display:grid}.phoneme-tutorial-modal__header{justify-content:space-between;align-items:center;gap:12px;display:flex}.phoneme-tutorial-modal__header h2{margin:0;font-size:1.2rem}.phoneme-tutorial-modal__close{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:38px;height:38px;color:var(--text);font:inherit;cursor:pointer;place-items:center;font-size:1.4rem;line-height:1;display:inline-grid}.phoneme-tutorial-modal__close:hover,.phoneme-tutorial-modal__close:focus-visible{border-color:var(--accent)}.phoneme-tutorial-modal__close:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}.phoneme-tutorial-modal__video{aspect-ratio:16/9;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--background);overflow:hidden}.phoneme-tutorial-modal__video iframe{border:0;width:100%;height:100%;display:block}.nav-arrow{width:46px;height:46px;font-size:2rem;line-height:1}.nav-arrow:disabled{cursor:not-allowed;opacity:.45}.audio-player{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);box-shadow:var(--shadow-soft);gap:8px;padding:12px;display:grid}.collapsible-panel--collapsed{gap:0}.collapsible-panel__header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 14px;display:flex}.collapsible-panel__toggle{min-height:42px;color:var(--text);font:inherit;cursor:pointer;background:0 0;border:0;justify-self:start;align-items:center;gap:8px;padding:0;font-size:1rem;font-weight:800;line-height:1.1;display:inline-flex}.collapsible-panel__toggle span:first-child{width:1em;color:var(--muted)}.collapsible-panel__toggle:focus-visible{outline:3px solid var(--accent-soft);outline-offset:4px}.collapsible-panel__body[hidden]{display:none}.audio-player__media{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.audio-player__waveform-wrap{gap:8px;display:grid;position:relative}.audio-player__body{gap:8px;display:grid}.audio-player__waveform{border-radius:calc(var(--radius-sm) - 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span:nth-child(3){text-align:right}.audio-player__controls{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.play-button{border-color:var(--color-red);background:var(--color-red);width:48px;height:48px;color:var(--panel)}.control-button{width:48px;height:48px}.comparison-button__icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2.4px;width:22px;height:22px;margin:auto;display:block;transform:translate(1px)}.recording-submit-button__icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2.4px;width:23px;height:23px;margin:auto;display:block}.control-button--active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.play-button:disabled,.control-button:disabled{cursor:not-allowed;opacity:.55}.speed-control:has(input:disabled){cursor:not-allowed;opacity:.55}.speed-control{box-sizing:border-box;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:min(240px,100%);min-height:48px;color:var(--text);align-items:center;gap:8px;padding:10px 12px;font-weight:800;display:inline-flex}.speed-control input{width:100%;min-width:120px;accent-color:var(--color-amber)}.speed-control strong{font-variant-numeric:tabular-nums;min-width:54px}.audio-control-label-icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2.4px;flex:0 0 22px;width:22px;height:22px}.audio-control-label-icon__fill{fill:currentColor;stroke:none}.audio-inline-control{box-sizing:border-box;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:min(240px,100%);min-height:48px;color:var(--text);align-items:center;gap:8px;padding:10px 12px;font-weight:800;display:inline-flex}.audio-inline-control input[type=range]{width:100%;min-width:96px;accent-color:var(--color-amber)}.audio-inline-control strong{text-align:center;font-variant-numeric:tabular-nums;min-width:28px}.audio-control-separator{background:var(--border);flex:0 0 1px;width:1px;height:34px;margin:0 8px}.audio-inline-control--fader{pointer-events:none;opacity:0;visibility:hidden;width:min(280px,100%);clip-path:inset(0 10% 0 0 round var(--radius-sm));transition:opacity .18s,transform .22s cubic-bezier(.2,.8,.2,1),clip-path .22s cubic-bezier(.2,.8,.2,1),visibility 0s linear .22s;transform:translate(-8px)}.audio-inline-control--fader-visible{pointer-events:auto;opacity:1;visibility:visible;clip-path:inset(0 0 0 0 round var(--radius-sm));transition:opacity .18s,transform .22s cubic-bezier(.2,.8,.2,1),clip-path .22s cubic-bezier(.2,.8,.2,1),visibility;transform:translate(0)}.audio-fader-side{min-width:48px;color:var(--muted);justify-items:center;gap:1px;font-size:.74rem;line-height:1.1;display:inline-grid}.audio-fader-side strong{min-width:0;color:var(--text);text-align:center;font-size:.92rem}.audio-tool-button__icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2.1px;width:22px;height:22px;margin:auto;display:block}.audio-emoji-control-icon{flex:0 0 24px;place-items:center;width:24px;height:24px;font-size:1.15rem;line-height:1;display:inline-grid}.audio-beater-icon{align-content:center;justify-items:center;gap:0;line-height:1;display:inline-grid}.audio-beater-icon .audio-emoji-control-icon{height:20px}.audio-beater-icon__solo{color:var(--color-red);text-transform:uppercase;font-size:.55rem;font-weight:900;line-height:1}.learner-recording-panel,.practice-transcription-panel{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);box-shadow:var(--shadow-soft);gap:10px;padding:12px;display:grid}.practice-transcription-panel__body{gap:10px;display:grid}.recording-header-tools,.recording-mode-buttons{align-items:center;gap:6px;display:inline-flex}.recording-header-tool{border:1px solid var(--border);background:var(--panel);width:32px;height:32px;color:var(--muted);cursor:pointer;border-radius:6px;place-items:center;padding:0;transition:border-color .14s,background-color .14s,color .14s,transform .14s;display:inline-grid}.recording-header-tool:hover,.recording-header-tool:focus-visible{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);transform:translateY(-1px)}.recording-header-tool--active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.recording-mode-label{min-width:56px;color:var(--muted);text-align:right;font-size:.76rem;font-weight:800;line-height:1}.recording-header-divider{background:var(--border);width:1px;height:22px;margin:0 2px}.recording-header-tool--submit{background:color-mix(in srgb, var(--color-red) 12%, var(--panel));border-color:color-mix(in srgb, var(--color-red) 36%, var(--border));color:var(--color-red)}.recording-header-tool--submit:hover,.recording-header-tool--submit:focus-visible{background:color-mix(in srgb, var(--color-red) 20%, var(--panel));border-color:var(--color-red);color:var(--color-red)}.recording-header-tool:disabled{cursor:not-allowed;opacity:.55;transform:none}.recording-header-tool:disabled:hover,.recording-header-tool:disabled:focus-visible{border-color:var(--border);background:var(--panel);color:var(--muted)}.recording-header-tool .audio-tool-button__icon,.recording-header-tool .recording-submit-button__icon{stroke-width:2.6px;width:18px;height:18px}.learner-recording-panel__body{gap:8px;display:grid}.recording-submission-modal{z-index:40;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.recording-submission-modal__scrim{background:#1f2a266b;position:absolute;inset:0}.recording-submission-panel{z-index:1;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);gap:16px;width:min(460px,100%);padding:18px;display:grid;position:relative;box-shadow:0 20px 56px #1f2a263d}.recording-submission-panel__header,.recording-submission-panel__actions{justify-content:space-between;align-items:center;gap:12px;display:flex}.recording-submission-panel__header p{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:.75rem;font-weight:800}.recording-submission-panel__header h2{color:var(--text);margin:2px 0 0;font-size:1.15rem;line-height:1.2}.recording-submission-panel__header button{border:1px solid var(--border);background:var(--panel);width:34px;height:34px;color:var(--muted);font:inherit;cursor:pointer;border-radius:50%;font-weight:800}.recording-submission-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.recording-submission-fields label{color:var(--text);gap:6px;font-size:.9rem;font-weight:800;display:grid}.recording-submission-fields input{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:100%;min-height:42px;color:var(--text);font:inherit;padding:9px 12px}.recording-submission-fields input:focus-visible{border-color:var(--accent);outline:3px solid var(--accent-soft);outline-offset:2px}.recording-submission-help{color:var(--muted);margin:0;font-size:.95rem;font-weight:700}.recording-submission-password-field{color:var(--text);gap:6px;font-size:.9rem;font-weight:800;display:grid}.recording-submission-password-field input{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:100%;min-height:42px;color:var(--text);font:inherit;padding:9px 12px}.recording-submission-password-field input:focus-visible{border-color:var(--accent);outline:3px solid var(--accent-soft);outline-offset:2px}.recording-submission-consent{color:var(--text);align-items:flex-start;gap:10px;font-size:.88rem;font-weight:700;line-height:1.35;display:flex}.recording-submission-consent input{width:18px;height:18px;accent-color:var(--accent);flex:none;margin-top:1px}.recording-submission-options{border:1px solid var(--border);border-radius:var(--radius-sm);gap:10px;margin:0;padding:12px;display:grid}.recording-submission-options legend{color:var(--muted);padding:0 6px;font-size:.85rem;font-weight:800}.recording-submission-options label{min-height:34px;color:var(--text);align-items:center;gap:10px;font-weight:800;display:flex}.recording-submission-options input{width:18px;height:18px;accent-color:var(--accent)}.recording-submission-status{color:var(--accent);margin:0;font-size:.9rem;font-weight:800}.recording-submission-status--error{color:var(--color-red)}.recording-submission-success{color:var(--text);text-align:center;margin:4px 0;font-size:1rem;font-weight:800}.recording-submission-panel__actions button{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);min-width:96px;height:42px;color:var(--text);font:inherit;cursor:pointer;padding:0 14px;font-weight:800}.recording-submission-panel__actions button:last-child{border-color:var(--accent);background:var(--accent);color:var(--panel)}.recording-submission-panel__actions--single{justify-content:center}.recording-submission-panel__actions--single button:last-child{border-color:var(--border);background:var(--panel);color:var(--text)}.recording-submission-panel__actions button:disabled,.recording-submission-panel__header button:disabled{cursor:not-allowed;opacity:.55}@media (width<=640px){.recording-submission-fields{grid-template-columns:1fr}}.recording-state{gap:8px;display:grid}.learner-recording-panel__content{gap:10px;display:grid}.learner-recording-panel__body p{color:var(--muted);margin:0;font-size:.92rem;font-weight:700}.recording-status--recording,.recording-status--error{color:var(--color-red)}.recording-waveform-placeholder{border:1px dashed color-mix(in srgb, var(--accent) 28%, var(--border));border-radius:calc(var(--radius-sm) - 2px);background:#f2f4f1;justify-content:center;align-items:center;gap:4px;height:clamp(64px,8vw,86px);padding:10px;display:flex;overflow:hidden}.recording-waveform-placeholder span{background:color-mix(in srgb, var(--accent) 26%, var(--border));border-radius:999px;flex:0 0 4px;width:4px;height:18%}.recording-waveform-placeholder span:nth-child(4n+1){height:34%}.recording-waveform-placeholder span:nth-child(4n+2){height:56%}.recording-waveform-placeholder span:nth-child(4n+3){height:42%}.recording-waveform-placeholder span:nth-child(8n+4){height:72%}.recording-live-visualization{border:1px solid color-mix(in srgb, var(--color-red) 34%, var(--border));border-radius:calc(var(--radius-sm) - 2px);background:#f2f4f1;justify-content:center;align-items:center;gap:4px;height:clamp(64px,8vw,86px);padding:10px;display:flex;overflow:hidden}.recording-live-visualization span{background:color-mix(in srgb, var(--color-red) 54%, var(--border));width:4px;height:18%;animation:.9s ease-in-out infinite recording-live-meter;animation-delay:calc(var(--bar-index,0) * -80ms);border-radius:999px;flex:0 0 4px}.recording-live-visualization span:nth-child(4n+1){--bar-index:1}.recording-live-visualization span:nth-child(4n+2){--bar-index:2}.recording-live-visualization span:nth-child(4n+3){--bar-index:3}.recording-live-visualization span:nth-child(4n+4){--bar-index:4}@keyframes recording-live-meter{0%,to{height:20%}50%{height:76%}}.learner-recording-panel__actions{justify-content:flex-start;display:flex}.record-button{border:1px solid var(--color-red);border-radius:var(--radius-sm);background:var(--color-red);min-width:96px;height:44px;color:var(--panel);font:inherit;cursor:pointer;justify-content:center;align-items:center;gap:8px;padding:0 18px;font-weight:800;display:inline-flex}.record-button__icon{fill:currentColor;flex:none;width:18px;height:18px;display:block}.record-button:disabled{cursor:not-allowed;opacity:.55}.record-button--recording{background:var(--panel);color:var(--color-red)}.recording-waveform-player{gap:8px;width:100%;display:grid}.recording-waveform-player__media{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.recording-waveform-player__waveform{min-width:0;position:relative}.recording-waveform-player__canvas{border-radius:calc(var(--radius-sm) - 2px);background:#f2f4f1;border:0;width:100%;height:clamp(72px,10.5vw,105px);display:block}.recording-delete-button{border:1px solid color-mix(in srgb, var(--text) 16%, var(--border));background:color-mix(in srgb, var(--panel) 88%, 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var(--border);border-radius:var(--radius-sm);background:var(--panel);width:48px;height:48px;color:var(--text);place-items:center;font-size:1.2rem;display:inline-grid}.practice-row--transcription .row-icon,.practice-row--revealed .row-icon{border-color:color-mix(in srgb, var(--accent) 35%, var(--border));background:var(--accent-soft)}.row-content{border:1px solid var(--border);border-left:3px solid color-mix(in srgb, var(--accent) 35%, var(--border));border-radius:var(--radius-sm);background:var(--panel);width:100%;min-width:0;min-height:48px;color:var(--text);overflow-wrap:anywhere;align-items:center;padding:10px 14px;font-size:1.1rem;display:flex}.practice-row--revealed 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18px;font-weight:900;text-decoration:none;display:inline-flex}.tutorial-next-lesson-button:hover,.tutorial-next-lesson-button:focus-visible{border-color:color-mix(in srgb, var(--accent) 82%, #000);background:color-mix(in srgb, var(--accent) 92%, #000)}.tutorial-next-lesson-button:focus-visible{outline:3px solid var(--accent-soft);outline-offset:3px}.lesson-list{gap:10px;display:grid}.lesson-row{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);box-shadow:var(--shadow-soft);overflow:hidden}.lesson-row--open{border-color:color-mix(in srgb, var(--accent) 35%, var(--border));background:color-mix(in srgb, var(--accent-soft) 68%, var(--panel));box-shadow:0 16px 34px #0000001f}.lesson-row__summary{width:100%;color:var(--text);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:14px;display:grid}.lesson-row__summary:hover,.lesson-row__summary:focus-visible{color:var(--accent)}.lesson-row__summary:focus-visible{outline:3px solid var(--accent-soft);outline-offset:-3px}.lesson-row__order{background:var(--accent-soft);width:38px;height:38px;color:var(--accent);border-radius:50%;place-items:center;font-size:.85rem;font-weight:800;display:inline-grid}.lesson-row__content{gap:4px;min-width:0;display:grid}.lesson-row__title{font-weight:800;line-height:1.2}.lesson-row__description{color:var(--muted);font-size:.95rem;line-height:1.4}.lesson-row__toggle{width:18px;height:18px;color:var(--accent);position:relative}.lesson-row__toggle:before,.lesson-row__toggle:after{content:"";background:currentColor;border-radius:999px;height:2px;position:absolute;inset:8px 2px auto}.lesson-row__toggle:after{transition:transform .16s;transform:rotate(90deg)}.lesson-row--open .lesson-row__toggle:after{transform:rotate(0)}.lesson-activities{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding:0 14px 14px 64px;display:grid}.lesson-activity{border:1px solid var(--border);min-height:64px;color:var(--text);text-align:center;white-space:nowrap;background:#fff;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:10px 12px;font-weight:700;line-height:1.1;text-decoration:none;display:inline-flex}.lesson-activity__icon{min-width:30px;height:24px;color:var(--accent);justify-content:center;align-items:center;font-size:1.1rem;font-weight:900;line-height:1;display:inline-flex}.lesson-activity__icon:has(+span){letter-spacing:0}.lesson-activity:only-child{grid-column:1/-1;justify-self:center;width:100%;max-width:160px}.lesson-activity:hover,.lesson-activity:focus-visible{border-color:var(--accent);color:var(--accent)}.lesson-activity:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}.route-card:hover,.route-card:focus-visible,.text-link:hover,.text-link:focus-visible{color:var(--accent)}.route-card:focus-visible,.text-link:focus-visible,.brand-link:focus-visible{outline:3px solid var(--accent-soft);outline-offset:3px}.route-params{gap:12px;max-width:520px;margin:0;display:grid}.route-params div{border:1px solid var(--border);background:var(--panel);border-radius:8px;grid-template-columns:140px 1fr;gap:16px;padding:16px;display:grid}.route-params dt{color:var(--muted);font-weight:700}.route-params dd{margin:0}.text-link{color:var(--accent);font-weight:700}.global-feedback-button{right:24px;bottom:max(24px, env(safe-area-inset-bottom));z-index:30;background:var(--accent);width:56px;height:56px;color:var(--panel);cursor:pointer;border:0;border-radius:50%;justify-content:center;align-items:center;padding:0;font-weight:800;transition:background .16s,box-shadow .16s,transform .16s;display:inline-flex;position:fixed;box-shadow:0 14px 34px #1f2a262e}.global-feedback-button span{width:30px;height:30px;color:var(--panel);border:2px solid;border-radius:50%;place-items:center;font-size:1.25rem;line-height:1;display:inline-grid}.global-feedback-button:hover,.global-feedback-button:focus-visible{background:color-mix(in srgb, var(--accent) 88%, var(--text));transform:translateY(-1px);box-shadow:0 16px 38px #1f2a2638}.global-feedback-button:focus-visible{outline:3px solid var(--accent-soft);outline-offset:3px}.app-shell:has(.practice-workspace) .global-feedback-button{bottom:max(72px, calc(56px + env(safe-area-inset-bottom)))}.feedback-modal{z-index:60;place-items:end;padding:24px;display:grid;position:fixed;inset:0}.feedback-modal__scrim{cursor:pointer;background:#2024265c;border:0;position:absolute;inset:0}.feedback-panel{overscroll-behavior:contain;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);gap:16px;width:min(100%,480px);max-height:min(760px,100vh - 48px);padding:20px;display:grid;position:relative;overflow-y:auto;box-shadow:0 28px 72px #1f2a263d}.feedback-panel__header,.feedback-panel__actions{justify-content:space-between;align-items:center;gap:14px;display:flex}.feedback-panel__eyebrow{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0 0 4px;font-size:.78rem;font-weight:800}.feedback-panel h2{color:var(--text);margin:0;font-size:1.35rem;line-height:1.2}.feedback-panel__close{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:40px;height:40px;color:var(--text);cursor:pointer;flex:none;place-items:center;font-size:1.35rem;line-height:1;display:inline-grid}.feedback-field{color:var(--text);gap:7px;font-weight:800;display:grid}.feedback-field input,.feedback-field select,.feedback-field textarea{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);width:100%;min-height:42px;color:var(--text);padding:9px 11px}.feedback-field input::placeholder,.feedback-field textarea::placeholder{color:var(--muted);font-style:italic;font-weight:400}.feedback-field select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);background-position:calc(100% - 18px),calc(100% - 12px);background-repeat:no-repeat;background-size:6px 6px,6px 6px;padding-right:34px}.feedback-field input[type=file]{background:color-mix(in srgb, var(--panel) 82%, var(--accent-soft));cursor:pointer;border-style:dashed;align-content:center;min-height:72px;display:grid}.feedback-field textarea{resize:vertical}.feedback-field small{color:var(--muted);font-style:italic;font-weight:400}.feedback-fieldset{border:1px solid var(--border);border-radius:var(--radius-sm);margin:0;padding:12px}.feedback-fieldset legend{padding:0 4px}.feedback-fieldset label{color:var(--text);align-items:center;gap:8px;margin-right:16px;font-weight:700;display:inline-flex}.feedback-fieldset input{width:auto;min-height:0}.feedback-panel__contact-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.feedback-panel__status{color:var(--accent);margin:0;font-weight:800}.feedback-panel__secondary,.feedback-panel__submit{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;min-height:42px;font:inherit;justify-content:center;align-items:center;padding:9px 14px;font-weight:800;display:inline-flex}.feedback-panel__secondary{background:var(--panel);color:var(--text)}.feedback-panel__submit{border-color:var(--accent);background:var(--accent);color:var(--panel)}.feedback-panel__submit:disabled{cursor:wait;opacity:.72}@media (width<=640px){.brand-link{padding:0 20px}.app-main{padding:48px 20px}.app-shell--dashboard .app-main{padding:0}.beta-dashboard__brand{gap:14px;min-height:78px;padding:14px 20px}.beta-dashboard__logo{width:48px;height:48px}.beta-dashboard__title-row{gap:4px 8px}.beta-dashboard__title-row h1{font-size:1.3rem}.beta-dashboard__title-row span{font-size:1rem}.beta-dashboard__content{gap:18px;padding:24px 20px 40px}.dashboard-section,.dashboard-section--training{padding:14px}.dashboard-training-grid,.dashboard-grid--intro,.announcement-feature,.office-hours-grid,.tracker-grid{grid-template-columns:1fr}.dashboard-language-card{gap:14px;min-height:92px;padding:16px}.dashboard-language-card__icon{width:48px;height:48px;font-size:1.35rem}.dashboard-language-card__label{font-size:1.65rem}.dashboard-video-card__fallback strong{font-size:1.2rem}.dashboard-video-card__play{width:56px;height:56px;font-size:1.2rem}.office-hours-card{padding:14px}.office-hours-card__actions a,.office-hours-card__actions button{flex:150px}.dashboard-modal{align-items:stretch;padding:20px}.dashboard-modal__panel{max-height:calc(100vh - 40px);padding:18px}.dashboard-modal__tracker{grid-template-columns:1fr}.practice-workspace,.practice-workspace--sidebar-closed{grid-template-columns:1fr;height:auto;min-height:calc(100vh - 48px);margin:-48px 0 0;overflow:visible}.practice-sidebar{border-right:0;border-bottom:1px solid var(--border);grid-area:auto/1;min-height:auto;overflow:visible}.practice-stage{grid-area:auto/1;padding:24px 24px 48px;overflow:visible}.practice-title-row h1{font-size:2rem}.practice-reveal-stack{margin-left:12px}.practice-row,.reveal-control-row{grid-template-columns:48px minmax(0,1fr)}.reveal-eye-button{width:48px}.global-feedback-button{right:16px;bottom:max(16px, env(safe-area-inset-bottom));width:50px;height:50px}.app-shell:has(.practice-workspace) .global-feedback-button{bottom:max(68px, calc(56px + env(safe-area-inset-bottom)))}.global-feedback-button span{width:28px;height:28px;font-size:1.1rem}.feedback-modal{align-items:stretch;padding:12px}.feedback-panel{align-self:end;width:100%;max-height:calc(100vh - 24px);padding:16px}.feedback-panel__contact-grid{grid-template-columns:1fr}.symbols-tray{grid-column:1}.symbols-tray__content,.selection-grid{grid-template-columns:1fr}.selection-card{min-height:112px;padding:18px}.tutorial-content,.empty-state{padding:18px}.route-params div{grid-template-columns:1fr;gap:4px}.lesson-row__summary{grid-template-columns:auto minmax(0,1fr) auto;gap:12px;padding:14px}.lesson-row__order{width:38px;height:38px}.lesson-activities{grid-template-columns:repeat(3,minmax(0,1fr));padding:0 14px 14px}.lesson-activity{min-width:0;padding-left:8px;padding-right:8px}}@media (height<=820px){.practice-stage{gap:6px;padding-top:12px;padding-bottom:88px}.practice-session-bar{gap:6px}.practice-exit,.practice-session-timer{min-height:36px;padding:8px 12px}.practice-title-row{gap:8px}.practice-title-row h1{font-size:clamp(1.2rem,2vw,1.55rem)}.nav-arrow{width:40px;height:40px;font-size:1.65rem}.practice-target-phonemes{gap:6px 10px;font-size:.82rem}.practice-target-phonemes__list{gap:4px}.practice-target-phoneme{min-width:28px;min-height:28px;padding:3px 7px;font-size:.95rem}.recording-header-tool{width:28px;height:28px}.recording-header-tool .audio-tool-button__icon,.recording-header-tool .recording-submit-button__icon{width:16px;height:16px}.audio-player{gap:6px;padding:8px}.audio-player__waveform-wrap{gap:5px}.practice-reveal-stack{gap:6px;width:calc(100% - 8px);margin-left:8px}.practice-row,.reveal-control-row{gap:8px}.audio-player__waveform,.recording-waveform-player__canvas{height:clamp(63px,10.5vh,89px)}.audio-player__time-row{font-size:.78rem}.audio-player__controls{gap:8px}.row-content{padding:8px 12px;font-size:1rem}.transcription-text{font-size:1.18rem;line-height:1.35}}@media (height<=680px){.practice-stage{gap:4px;padding-top:8px;padding-bottom:88px}.practice-exit,.practice-session-timer{min-height:32px;padding:6px 10px;font-size:.82rem}.practice-title-row h1{font-size:1.2rem}.nav-arrow{width:36px;height:36px}.audio-player__waveform{height:clamp(66px,13.5vh,84px)}.play-button,.control-button,.row-icon,.reveal-eye-button{width:44px;height:44px}.recording-waveform-player__canvas{height:clamp(66px,13.5vh,84px)}.practice-row,.reveal-control-row{grid-template-columns:44px minmax(0,1fr)}.row-content{min-height:44px;padding:6px 10px}.transcription-next-button{height:44px}}