:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#e2e8f0;background-color:#0f172a;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.6}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}body{background:radial-gradient(circle at 20% 20%,#94a3b824,#0000 40%),radial-gradient(circle at 80% 80%,#e2e8f01f,#0000 55%),#0b0c10;justify-content:center;min-height:100vh;margin:0;display:flex}.site-shell{width:100%}.site-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;width:min(720px,92vw);margin:6px auto 0;display:flex}.home-link{color:#e2e8f0;border-radius:12px;align-items:center;padding:6px 0;text-decoration:none;display:inline-flex}.home-link:hover{color:#f8fafc}.home-link__title{letter-spacing:-.02em;margin:0;font-size:clamp(1.6rem,3.5vw,2.2rem);font-weight:800}main{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);width:min(720px,92vw);color:inherit;background:#0f172ad9;border:1px solid #94a3b833;border-radius:24px;margin:16px auto clamp(32px,6vh,80px);padding:48px clamp(24px,6vw,56px);box-shadow:0 30px 80px #0f172a99}.landing-hero{grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);align-items:center;gap:28px;display:grid}.landing-hero__text{flex-direction:column;gap:14px;display:flex}.landing-kicker{text-transform:uppercase;letter-spacing:.3em;color:#e2e8f0b3;margin:0;font-size:.75rem;font-weight:700}.landing-title{letter-spacing:-.02em;margin:0;font-size:clamp(2rem,4.2vw,3rem);line-height:1.1}.landing-subtitle{color:#cbd5f5;margin:0;font-size:1.05rem}.landing-hero__badge{justify-content:center;display:flex}.landing-badge-card{background:linear-gradient(135deg,#38bdf82e,#818cf81f),#0f172acc;border:1px solid #38bdf859;border-radius:18px;padding:22px;box-shadow:0 18px 40px #0e749040}.landing-badge-title{margin:0 0 10px;font-size:1.1rem;font-weight:700}.landing-badge-text{color:#cbd5f5;margin:0}.landing-points{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:32px;display:grid}.landing-card{background:#0f172ab3;border:1px solid #94a3b840;border-radius:18px;flex-direction:column;gap:10px;padding:22px;display:flex}.landing-card__step{color:#38bdf8;margin:0;font-size:1.4rem;font-weight:800}.landing-card__title{letter-spacing:-.01em;margin:0;font-size:1.2rem}.landing-card__text{color:#cbd5f5;margin:0}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}.auth-actions{flex:auto;justify-content:flex-end;align-items:center;gap:10px;display:flex}@media (max-width:860px){.landing-hero{grid-template-columns:1fr}}.login-button{border:1px solid #0000;border-radius:12px;min-width:0;padding:10px 14px;font-size:.95rem;box-shadow:0 12px 30px #0f172a4d}.login-button:hover{transform:translateY(-1px)}.google-button{color:#0f172a;background:#fff;border-color:#0f172a1a}.google-button svg{flex-shrink:0}.email-button{color:#0b0c10;background:linear-gradient(135deg,#38bdf8,#22d3ee);border-color:#fff3}.text-button{background:#94a3b81f;border:1px solid #94a3b859;border-radius:12px;min-width:0;padding:10px 12px}.text-button:hover{background:#94a3b838}.user-pill{min-width:0;color:inherit;background:#94a3b81f;border:1px solid #94a3b859;border-radius:12px;align-self:stretch;align-items:center;gap:10px;padding:10px 12px;text-decoration:none;display:inline-flex}.user-pill:hover{background:#94a3b838}.user-avatar{color:#0b0c10;background:linear-gradient(135deg,#38bdf8,#818cf8);border-radius:50%;place-items:center;width:36px;height:36px;font-weight:800;display:grid}.user-details{flex-direction:column;gap:2px;min-width:0;display:flex}.user-name{font-weight:700;line-height:1.2}.user-name--short{display:none}.user-provider{color:#cbd5f5;opacity:.85;font-size:.85rem}@media (max-width:640px){main{padding:14px clamp(20px,6vw,40px)}.page-header{flex-direction:column;align-items:flex-start;gap:10px}.auth-actions{justify-content:flex-start}label{grid-template-columns:1fr;gap:8px}.toggle-group{gap:4px;padding:3px}.toggle-option{padding:8px 12px;font-size:.6rem}.stacked-label{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.stacked-label select,.stacked-label input{width:100%}.profile-summary{grid-template-columns:1fr;margin-bottom:2rem}.profile-actions,.page-actions,.invite-link-row{grid-template-columns:1fr}.user-avatar{width:30px;height:30px;font-size:.9rem}.user-name--full{display:none}.user-name--short{letter-spacing:.08em;font-size:.75rem;display:inline}.text-button{padding:8px 10px;font-size:.85rem}.login-button{gap:8px;width:100%;min-width:0;padding:10px 12px;font-size:.85rem}}h1{letter-spacing:-.03em;align-items:center;gap:12px;margin:0;font-size:clamp(2rem,5vw,2.8rem);font-weight:700;display:flex}.card-grid{gap:24px;display:grid}fieldset{border:1px solid #94a3b833;border-radius:18px;margin:0;padding:20px 24px}legend{color:#cbd5f5;padding:0 12px;font-weight:600}label{grid-template-columns:minmax(160px,1.1fr) 2fr;align-items:center;gap:12px;margin-bottom:16px;font-size:.95rem;display:grid}input[type=range],input[type=number],select,.profile-input{width:100%;color:inherit;box-sizing:border-box;background:#0f172ab3;border:1px solid #94a3b84d;border-radius:12px;margin:0;padding:12px 16px;font-size:1rem}input[type=number]{appearance:textfield}input[type=number]::-webkit-outer-spin-button{appearance:none;margin:0}input[type=number]::-webkit-inner-spin-button{appearance:none;margin:0}.error-input{border-color:#f87171b3;box-shadow:0 0 0 3px #f8717126}.error-input:focus{border-color:#ef4444e6;box-shadow:0 0 0 3px #ef444440}button{all:unset;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:12px;min-width:140px;padding:14px 20px;font-weight:600;transition:transform .2s,background .2s;display:inline-flex}button:disabled{opacity:.6;cursor:not-allowed;transform:none}.primary-button{color:#0f172a;background:linear-gradient(135deg,#38bdf8,#818cf8)}.primary-button:hover{transform:translateY(-1px)}.secondary-button{background:#94a3b826}.secondary-button:hover{background:#94a3b840}.pitch-warning-slot{justify-content:center;align-items:center;min-height:56px;margin-top:12px;display:flex}.fieldset-disabled{opacity:.65}.player-placeholder{text-align:center;color:#e2e8f0e6;background:#0f172a66;border:1px dashed #94a3b866;border-radius:12px;width:100%;padding:16px;font-size:.95rem}.microphone-button{min-width:0;padding-inline:16px}.microphone-button--error{color:#fee2e2;background:#f871712e;border:1px solid #f87171cc}.microphone-button--error:hover{background:#f8717147}.toggle-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.toggle-row p{margin:0;font-weight:500}.toggle-group{background:#0f172aa6;border:1px solid #94a3b859;border-radius:999px;align-items:center;gap:6px;padding:4px;display:inline-flex}.toggle-option{min-width:unset;color:inherit;background:0 0;border-radius:999px;padding:10px 14px;font-size:.95rem;font-weight:600;transition:background .2s,color .2s}.toggle-option:hover{background:#94a3b82e}.toggle-option.active{color:#0f172a;background:linear-gradient(135deg,#38bdf8,#818cf8)}.stacked-label{white-space:normal;line-height:1.4}.note-step-buttons{flex-direction:column;gap:6px;width:100%;display:flex}.note-step-button{white-space:nowrap;justify-content:center;align-items:center;gap:.2rem;width:100%;min-width:0;min-height:44px;padding:6px;font-size:1.1rem;line-height:1;display:inline-flex}.note-step-arrow{font-size:1.1rem;line-height:1}.note-step-label{font-size:.95rem;font-weight:600}.base-note-row{grid-template-columns:2.8fr 1.2fr;align-items:center;gap:8px;margin-bottom:6px;display:grid}.base-note-row p{margin:0}.base-note-row--full{width:100%}.audio-loop-row{flex-direction:column;align-items:stretch;gap:10px;margin-top:8px;display:flex}.audio-loop-player{align-self:center;width:100%;min-width:0;height:44px;display:block}.audio-loop-player--hidden{opacity:0;pointer-events:none;width:0;height:0;position:absolute}.audio-control-bar{background:#0f172ab3;border:1px solid #94a3b840;border-radius:14px;grid-template-columns:auto 1fr auto;grid-template-areas:"left progress right";align-items:center;gap:12px;padding:10px 12px;display:grid}.audio-control-left{grid-area:left;align-items:center;gap:10px;display:flex}.audio-control-progress{grid-area:progress;align-items:center;gap:8px;min-width:0;display:flex}.audio-control-right{grid-area:right;justify-content:flex-end;align-items:center;gap:8px;display:flex}.audio-control-button{width:40px;min-width:40px;height:40px;min-height:40px;color:inherit;background:#94a3b826;border:1px solid #94a3b859;border-radius:999px;padding:0;font-size:1.05rem;line-height:1}.audio-control-button:hover{background:#94a3b840}.audio-loop-toggle.active{color:#0b0c10;background:linear-gradient(135deg,#22d3ee,#38bdf8);border:1px solid #22d3eecc}.audio-speed-button{background:#94a3b826;border:1px solid #94a3b859;border-radius:999px;min-width:60px;padding:8px 12px;font-size:.9rem;font-weight:600}.audio-speed-button:hover{background:#94a3b840}.audio-volume-control{align-items:center;gap:6px;min-width:0;display:inline-flex;position:relative}.audio-volume-trigger{font-size:1.05rem}.audio-volume-popup{position:relative}.audio-volume-panel{opacity:0;pointer-events:none;z-index:10;background:#0f172af2;border:1px solid #94a3b859;border-radius:12px;width:min(200px,70vw);padding:10px 12px;transition:opacity .2s,transform .2s;position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%,-6px);box-shadow:0 12px 24px #0f172a8c}.audio-volume-panel.is-open{opacity:1;pointer-events:auto;transform:translate(-50%)}.audio-volume-label{color:#cbd5f5;margin-bottom:6px;font-size:.8rem;display:block}.audio-volume-scale{color:#cbd5f5bf;justify-content:space-between;margin-top:4px;font-size:.7rem;display:flex}.audio-control-bar input[type=range].audio-range{cursor:pointer;background:0 0;border:none;border-radius:999px;width:100%;height:28px;margin:0;padding:0}.audio-progress-range{accent-color:#ef4444;flex:1}.audio-volume-range{accent-color:#cbd5f5}.audio-time{color:#cbd5f5;font-variant-numeric:tabular-nums;min-width:44px;font-size:.85rem}@media (max-width:640px){.audio-control-bar{grid-template-columns:1fr 1fr;grid-template-areas:"progress progress""left right";row-gap:10px}.audio-volume-panel{left:0;transform:translateY(-6px)}.audio-volume-panel.is-open{transform:translate(0)}}.note-display{margin:12px 0 0;font-size:1.05rem;font-weight:500}.feedback{border-radius:12px;margin-top:18px;padding:12px 16px}.feedback.success{color:#bbf7d0;background:#22c55e1a;border:1px solid #22c55e66}.feedback.info{color:#bfdbfe;background:#3b82f61a;border:1px solid #3b82f666}.feedback.warning{color:#fecaca;background:#f871711a;border:1px solid #f8717166}.action-popup{text-align:center;border-radius:12px;max-width:min(360px,90vw);padding:8px 12px;font-size:.85rem;font-weight:700;box-shadow:0 12px 24px #0f172a59}.action-popup--inline{flex:0 auto;min-width:0;max-width:min(260px,40vw);animation:.2s actionPopupIn}.action-popup--success{color:#bbf7d0;background:#22c55e33;border:1px solid #22c55e80}.assignment-action-row{flex-wrap:nowrap;align-items:center;gap:12px;display:flex}@keyframes actionPopupIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.flash-button{animation:1s linear infinite flashPulse}@keyframes flashPulse{0%{opacity:1}50%{opacity:.4}to{opacity:1}}.player-card{background:#0f172abf;border:1px solid #94a3b833;border-radius:18px;margin-top:32px;padding:24px}audio{width:100%;margin-top:18px}.tab-bar{background:#0f172ab3;border:1px solid #94a3b840;border-radius:14px;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 18px;padding:8px;display:flex}.tab-link{color:inherit;background:#94a3b81f;border:1px solid #0000;border-radius:12px;padding:10px 14px;font-weight:600;text-decoration:none}.tab-link:hover{background:#94a3b833}.tab-link.is-active{color:#0f172a;background:linear-gradient(135deg,#38bdf8,#818cf8);border-color:#94a3b859;box-shadow:0 8px 20px #818cf840}.home-navbar{background:#0f172ab3;border:1px solid #94a3b840;border-radius:16px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;width:min(720px,92vw);margin:16px auto 18px;padding:10px clamp(24px,6vw,56px);display:grid}.home-navbar__link{color:#e2e8f0;text-align:center;background:#94a3b824;border:1px solid #94a3b840;border-radius:14px;padding:10px 12px;font-weight:700;text-decoration:none}.home-navbar__link:hover{background:#94a3b83d}.home-navbar__link.is-active{color:#0f172a;background:linear-gradient(135deg,#38bdf8,#818cf8);border-color:#94a3b859;box-shadow:0 8px 20px #818cf840}.role-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-top:8px;display:grid}.role-card{cursor:pointer;background:#0f172aa6;border:1px solid #94a3b840;border-radius:14px;padding:14px 16px;transition:border-color .2s,background .2s,box-shadow .2s;display:block;position:relative}.role-card input{opacity:0;pointer-events:none;position:absolute}.role-card:hover{background:#0f172acc;border-color:#818cf866}.role-card.is-active{background:linear-gradient(135deg,#22d3ee1f,#818cf81f);border-color:#818cf8e6;box-shadow:0 14px 32px #818cf833}.role-card__content{flex-direction:column;gap:6px;display:flex}.role-label{letter-spacing:-.01em;margin:0;font-weight:700}.role-description,.role-tabs{color:#cbd5f5;margin:0}.role-tabs{opacity:.9;font-size:.9rem}.role-guard{color:#fcd34d;margin:0;font-size:.9rem}.profile-summary{flex-direction:column;gap:10px;display:flex}.profile-form{gap:12px;margin-top:16px;display:grid}.profile-form-actions{flex-wrap:wrap;gap:12px;display:flex}.profile-actions{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:16px;display:grid}.profile-action-link{color:#0f172a;text-align:center;background:linear-gradient(135deg,#38bdf8,#22d3ee);border:1px solid #38bdf859;border-radius:999px;padding:12px 16px;font-weight:700;text-decoration:none;box-shadow:0 10px 24px #22d3ee40}.profile-action-link:hover{background:linear-gradient(135deg,#38bdf8,#67e8f9)}.page-actions{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:0 0 16px;display:grid}.page-action-link{color:#0f172a;text-align:center;background:linear-gradient(135deg,#38bdf8,#22d3ee);border:1px solid #38bdf859;border-radius:999px;padding:12px 16px;font-weight:700;text-decoration:none;box-shadow:0 10px 24px #22d3ee40}.page-action-link:hover{background:linear-gradient(135deg,#38bdf8,#67e8f9)}.page-action-button{appearance:none;color:#0f172a;cursor:pointer;background:linear-gradient(135deg,#38bdf8,#22d3ee);border:1px solid #38bdf859;border-radius:999px;padding:12px 16px;font-weight:700;box-shadow:0 10px 24px #22d3ee40}.page-action-button:hover{background:linear-gradient(135deg,#38bdf8,#67e8f9)}.exercise-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.exercise-list__item{background:#0f172aa6;border:1px solid #94a3b840;border-radius:12px;padding:12px 14px}.invite-link-row{grid-template-columns:1fr;gap:10px;margin:12px 0;display:grid}.invite-block{width:min(420px,100%)}.invite-link-actions{flex-wrap:wrap;gap:8px;display:flex}.invite-list{gap:8px;margin-top:12px;display:grid}.invite-list__title{color:#cbd5f5;margin:0;font-size:.9rem;font-weight:600}.invite-list__items{gap:8px;margin:0;padding:0;list-style:none;display:grid}.invite-list__item{background:#0f172a99;border:1px solid #94a3b840;border-radius:12px;gap:8px;padding:10px 12px;display:grid}.invite-list__link{color:#cbd5f5;word-break:break-all;font-size:.75rem}.invite-link-input{width:100%;color:inherit;background:#0f172a99;border:1px solid #94a3b840;border-radius:12px;padding:10px 12px;font-size:.72rem;line-height:1.3}.invite-link-copy{appearance:none;color:inherit;cursor:pointer;background:#94a3b81f;border:1px solid #94a3b859;border-radius:999px;padding:10px 14px;font-weight:700}.invite-link-copy:hover{background:#94a3b833}.invite-modal{z-index:60;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.invite-modal__backdrop{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0f172abf;position:absolute;inset:0}.invite-modal__content{background:#0f172af2;border:1px solid #94a3b859;border-radius:18px;gap:14px;width:min(460px,100%);padding:18px;display:grid;position:relative;box-shadow:0 18px 40px #0f172a73}.invite-modal__title{margin:0;font-size:1.05rem;font-weight:700}.invite-modal__subtitle{color:#cbd5f5;margin:0;font-size:.9rem}.invite-modal__actions{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;display:grid}.invite-modal__action{appearance:none;color:inherit;text-align:center;cursor:pointer;background:#94a3b81f;border:1px solid #94a3b859;border-radius:16px;place-items:center;gap:8px;padding:14px 12px;font-weight:700;display:grid}.invite-modal__action:hover{background:#94a3b833}.invite-modal__action--whatsapp .invite-modal__icon{color:#22c55e;background:#22c55e2e}.invite-modal__action--copy .invite-modal__icon{color:#e2e8f0;background:#94a3b833}.invite-modal__icon{border-radius:12px;place-items:center;width:38px;height:38px;display:grid}.invite-modal__icon svg{width:22px;height:22px}.invite-modal__notice{background:#38bdf824;border:1px solid #38bdf84d;border-radius:12px;margin:0;padding:10px 12px;font-size:.85rem}.invite-modal__close{appearance:none;color:inherit;cursor:pointer;background:#0f172a99;border:1px solid #94a3b859;border-radius:999px;justify-self:start;padding:10px 14px;font-weight:700}.student-list{gap:10px;margin:12px 0 0;padding:0;list-style:none;display:grid}.student-list__item{background:#0f172aa6;border:1px solid #94a3b840;border-radius:12px;gap:4px;padding:12px 14px;display:grid}.student-list__name{font-weight:700}.student-list__email{color:#cbd5f5;font-size:.9rem}.register-card{background:#0f172aa6;border:1px solid #94a3b840;border-radius:16px;margin-top:16px;padding:18px}.register-text{margin:0 0 12px;font-weight:600}.register-actions{gap:10px;display:grid}.register-link{color:#0f172a;text-align:center;background:linear-gradient(135deg,#38bdf8,#22d3ee);border:1px solid #38bdf859;border-radius:999px;margin-top:10px;padding:10px 14px;font-weight:700;text-decoration:none;display:inline-block;box-shadow:0 10px 24px #22d3ee40}.register-link:hover{background:linear-gradient(135deg,#38bdf8,#67e8f9)}.register-meta{color:#cbd5f5;margin-top:12px;font-size:.9rem}.profile-label{color:#94a3b8;text-transform:uppercase;letter-spacing:.08em;margin:0 0 4px;font-size:.85rem;font-weight:700}.profile-value{color:#e2e8f0;margin:0;font-size:1.05rem;font-weight:600}
