@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap";:root{--font-sans:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--bg-gradient:linear-gradient(135deg, #090a15 0%, #111326 50%, #1a152d 100%);--bg-surface:#ffffff08;--bg-surface-hover:#ffffff0f;--bg-surface-active:#ffffff1a;--border-color:#ffffff14;--border-color-hover:#ffffff29;--border-color-accent:#7961f24d;--color-text-primary:#f8fafc;--color-text-secondary:#94a3b8;--color-text-muted:#64748b;--color-indigo:#7961f2;--color-indigo-hover:#6045db;--color-emerald:#48bb78;--color-emerald-hover:#38a169;--color-rose:#f65a78;--color-rose-hover:#dc4661;--color-amber:#f6ad55;--color-amber-hover:#dd913b;--color-sky:#63b3ed;--color-sky-hover:#4299e1;--glass-shadow:0 8px 32px 0 #0006;--glass-blur:blur(16px);--border-glass:1px solid #ffffff14;--transition-fast:.15s ease;--transition-normal:.3s cubic-bezier(.4, 0, .2, 1);--transition-slow:.5s cubic-bezier(.4, 0, .2, 1);--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--primary:var(--color-indigo);--primary-hover:var(--color-indigo-hover);--primary-light:#7961f226;--secondary:var(--color-sky);--accent:var(--color-emerald);--text-main:var(--color-text-primary);--text-muted:var(--color-text-secondary);--card-bg:#ffffff08;--card-border:#ffffff14;--card-shadow:var(--glass-shadow);--badge-bg:#ffffff05;--input-bg:#0003;--border-radius-lg:var(--radius-lg);--border-radius-md:var(--radius-md);--border-radius-sm:var(--radius-sm);--transition-smooth:all var(--transition-normal);--pulse-color:#7961f24d;--pulse-color-fade:#7961f200}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow-x:hidden}body{font-family:var(--font-sans);background:var(--bg-gradient);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-attachment:fixed;line-height:1.5}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0003}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#fff3}.glass-panel{background:var(--bg-surface);-webkit-backdrop-filter:var(--glass-blur);border:var(--border-glass);box-shadow:var(--glass-shadow);border-radius:var(--radius-md);transition:transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);padding:24px}.glass-panel:hover{border-color:var(--border-color-hover);box-shadow:0 12px 40px #00000080}.glass-panel-accent{border-color:var(--border-color-accent)}h1,h2,h3,h4,h5,h6{color:var(--color-text-primary);letter-spacing:-.025em;font-weight:700;line-height:1.25}h1{background:linear-gradient(90deg,#fff,#94a3b8);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:8px;font-size:2.5rem}p{color:var(--color-text-secondary)}.input-group{flex-direction:column;gap:8px;margin-bottom:20px;display:flex}.input-label{color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.875rem;font-weight:500}.input-field{border-radius:var(--radius-sm);width:100%;color:var(--color-text-primary);font-family:var(--font-sans);transition:all var(--transition-fast);background:#00000040;border:1px solid #ffffff1a;padding:14px 16px;font-size:1rem}.input-field:focus{border-color:var(--color-indigo);background:#00000059;outline:none;box-shadow:0 0 0 3px #6366f140}.btn{font-family:var(--font-sans);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-normal);border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:.95rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(to right, var(--color-indigo), var(--color-indigo-hover));color:#fff;box-shadow:0 4px 12px #7961f240}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 18px #7961f259}.btn-primary:active{transform:translateY(0)}.btn-success{background:linear-gradient(to right, var(--color-emerald), var(--color-emerald-hover));color:#fff;box-shadow:0 4px 12px #48bb7840}.btn-success:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10b98180}.btn-secondary{color:var(--color-text-primary);background:#ffffff14;border:1px solid #ffffff1a}.btn-secondary:hover{background:#ffffff26;border-color:#fff3}.btn-danger{color:#fda4af;background:#f43f5e26;border:1px solid #f43f5e4d}.btn-danger:hover{background:var(--color-rose);color:#fff;box-shadow:0 4px 14px #f43f5e66}.container{max-width:1200px;min-height:calc(100vh - 80px);margin:0 auto;padding:40px 24px}.flex-center{justify-content:center;align-items:center;display:flex}.grid-cols-2{grid-template-columns:repeat(2,1fr);gap:24px;display:grid}.grid-cols-3{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}@media (width<=1024px){.grid-cols-3{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.grid-cols-2,.grid-cols-3{grid-template-columns:1fr}.container{padding:20px 16px}}@keyframes pulseGlow{0%,to{opacity:.5;box-shadow:0 0 15px #6366f14d}50%{opacity:.9;box-shadow:0 0 25px #6366f199}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.float-animation{animation:4s ease-in-out infinite float}.badge{text-transform:uppercase;border-radius:9999px;align-items:center;padding:4px 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var(--card-border);border-radius:var(--border-radius-md);transition:var(--transition-smooth);justify-content:space-between;align-items:center;margin-bottom:.75rem;padding:.75rem 1.25rem;display:flex}.word-row:hover{border-color:var(--primary);background:var(--primary-light)}.word-info{flex-direction:column;display:flex}.word-spanish{font-family:var(--font-headers);color:var(--text-main);font-size:1.2rem;font-weight:700}.word-details{color:var(--text-muted);font-size:.85rem}.syllable-container{justify-content:center;gap:.5rem;margin:1.5rem 0;display:flex}.syllable-bubble{font-family:var(--font-headers);border-radius:var(--border-radius-md);background:var(--badge-bg);border:2px solid var(--card-border);color:var(--text-main);transition:var(--transition-smooth);cursor:pointer;padding:.5rem 1.25rem;font-size:1.8rem;font-weight:700}.syllable-bubble:hover{border-color:var(--primary);transform:scale(1.05)}.syllable-bubble.stressed{background:var(--primary-light);border-color:var(--primary);color:var(--primary);animation:2s ease-in-out infinite accentPulse;box-shadow:0 0 15px #ff5f4026}[data-theme=dark] .syllable-bubble.stressed{box-shadow:0 0 15px #8b5cf633}.quiz-container{max-width:600px;margin:0 auto}.quiz-header{justify-content:space-between;align-items:center;margin-bottom:1.5rem;display:flex}.progress-bar-bg{background:var(--card-border);border-radius:4px;flex-grow:1;height:8px;margin:0 1rem;overflow:hidden}.progress-bar-fill{background:var(--primary);border-radius:4px;height:100%;transition:width .4s cubic-bezier(.25,.8,.25,1)}.quiz-card{text-align:center;flex-direction:column;gap:1.5rem;padding:3rem 2rem;display:flex}.options-list{flex-direction:column;gap:.75rem;margin-top:1rem;display:flex}.option-btn{text-align:left;font-family:var(--font-body);border-radius:var(--border-radius-md);border:2px solid var(--card-border);background:var(--badge-bg);color:var(--text-main);cursor:pointer;transition:var(--transition-fast);padding:1rem 1.5rem;font-size:1.05rem;font-weight:500}.option-btn:hover:not(:disabled){border-color:var(--primary);transform:translate(4px)}.option-btn.correct{border-color:var(--accent);color:var(--accent);background:#10b9811a}.option-btn.incorrect{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.pulse-speaker{background:var(--primary-light);width:72px;height:72px;color:var(--primary);cursor:pointer;transition:var(--transition-smooth);border:none;border-radius:50%;justify-content:center;align-items:center;margin:1rem auto;display:flex}.pulse-speaker:hover{transform:scale(1.08)}.pulse-speaker.playing{animation:1.2s ease-out infinite speakerPulse}@keyframes speakerPulse{0%{box-shadow:0 0 0 0 var(--pulse-color);transform:scale(1)}70%{box-shadow:0 0 0 15px var(--pulse-color-fade);transform:scale(1.05)}to{box-shadow:0 0 0 0 var(--pulse-color-fade);transform:scale(1)}}@keyframes accentPulse{0%,to{transform:scale(1)}50%{transform:scale(1.03);box-shadow:0 0 20px #ff5f4040}}.audio-waves-container{justify-content:center;align-items:center;gap:3px;height:24px;margin-top:.5rem;display:flex}.wave-bar{background:var(--primary);border-radius:1.5px;width:3px;height:4px;transition:height .1s}.wave-bar.animating{animation:1.2s ease-in-out infinite alternate waveMotion}.wave-bar:first-child{animation-delay:.1s}.wave-bar:nth-child(2){animation-delay:.25s}.wave-bar:nth-child(3){animation-delay:.4s}.wave-bar:nth-child(4){animation-delay:.15s}.wave-bar:nth-child(5){animation-delay:.3s}.wave-bar:nth-child(6){animation-delay:.5s}.wave-bar:nth-child(7){animation-delay:.2s}@keyframes waveMotion{0%{height:4px}to{height:20px}}.certificate{border:4px double var(--primary);background:var(--card-bg);border-radius:var(--border-radius-md);text-align:center;box-shadow:var(--card-shadow);margin-top:1.5rem;padding:3rem 2rem;position:relative}.certificate:before{content:"★ ★ ★";color:var(--secondary);margin-bottom:1rem;font-size:1.5rem;display:block}.certificate-title{font-family:var(--font-headers);color:var(--text-main);margin-bottom:.5rem;font-size:2.2rem}.certificate-subtitle{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:2rem;font-size:.95rem}.student-name-line{border-bottom:2px solid var(--text-muted);width:80%;height:2.5rem;font-family:var(--font-headers);color:var(--primary);text-align:center;background:0 0;border-top:none;border-left:none;border-right:none;outline:none;margin:0 auto 2rem;font-size:1.4rem;font-weight:600}.certificate-date{color:var(--text-muted);margin-top:1.5rem;font-size:.85rem}header{justify-content:space-between;align-items:center;margin-bottom:2.5rem;display:flex}.header-logo{align-items:center;gap:.75rem;display:flex}.logo-icon{background:var(--primary);color:#fff;border-radius:12px;justify-content:center;align-items:center;padding:8px;display:flex}.logo-text{font-family:var(--font-headers);background:linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.5rem;font-weight:800}.settings-panel-row{justify-content:space-between;align-items:center;margin-bottom:1.25rem;display:flex}.settings-select{font-family:var(--font-body);border-radius:var(--border-radius-sm);background:var(--input-bg);border:1px solid var(--card-border);color:var(--text-main);cursor:pointer;outline:none;padding:.5rem 1rem}.settings-slider{width:150px;accent-color:var(--primary);cursor:pointer}.settings-label{font-size:.95rem;font-weight:600}.shake{animation:.4s ease-in-out shakeAction}@keyframes shakeAction{0%,to{transform:translate(0)}20%,60%{transform:translate(-6px)}40%,80%{transform:translate(6px)}}.success-bounce{animation:.5s ease-out bounceAction}@keyframes bounceAction{0%,to{transform:translateY(0)scale(1)}50%{transform:translateY(-12px)scale(1.08)}}.cheat-sheet-row{background:var(--badge-bg);border:1px solid var(--card-border);border-radius:var(--border-radius-md);align-items:flex-start;gap:.75rem;margin-bottom:.5rem;padding:.75rem 1rem;font-size:.92rem;line-height:1.4;display:flex}.cheat-sheet-label{color:var(--primary);text-transform:uppercase;letter-spacing:.05em;flex-shrink:0;align-items:center;gap:.25rem;min-width:90px;font-size:.75rem;font-weight:800;display:inline-flex}[data-theme=dark] .cheat-sheet-label{color:var(--primary)}.builder-slot-container{flex-wrap:wrap;justify-content:center;gap:.75rem;margin:1.5rem 0;display:flex}.builder-slot{border-radius:var(--border-radius-md);border:2px dashed var(--card-border);width:75px;height:54px;font-family:var(--font-headers);color:var(--text-muted);transition:var(--transition-smooth);background:#00000005;justify-content:center;align-items:center;font-size:1.35rem;font-weight:700;display:flex}.builder-slot.active{border:2px solid var(--primary);background:var(--primary-light);color:var(--primary);box-shadow:0 0 10px #ff5f4026}.builder-slot.filled{border:2px solid var(--accent);color:var(--accent);background:#20b2aa1a;border-style:solid}[data-theme=dark] .builder-slot.filled{color:var(--accent);background:#10b98126}.builder-bubbles-scrambled{flex-wrap:wrap;justify-content:center;gap:.75rem;min-height:56px;margin:1.5rem 0;display:flex}.parrot-container{background:var(--primary-light);border-radius:var(--border-radius-md);text-align:left;border:1px solid #ff5f4026;align-items:center;gap:.75rem;margin-top:1rem;padding:1rem;display:flex;position:relative}[data-theme=dark] .parrot-container{background:#8b5cf61a;border:1px solid #8b5cf633}.parrot-avatar{filter:drop-shadow(0 2px 4px #0000001a);font-size:2.2rem;line-height:1}.parrot-speech{color:var(--text-main);font-size:.9rem;line-height:1.4}.parrot-speech strong{color:var(--primary)}.certificate-seal{color:#8b5a00;background:radial-gradient(circle,gold 0%,#ffae00 100%);border:4px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin:0 auto 1.25rem;font-size:1.5rem;font-weight:900;display:flex;position:relative;box-shadow:0 4px 10px #00000026}.certificate-seal:after{content:"🏆";font-size:1.8rem}button,input,select,textarea,img,iframe,table{max-width:100%}img{height:auto}.app-nav{width:100%}.app-brand{min-width:0;color:inherit;font:inherit;white-space:nowrap;background:0 0;border:0;padding:0}.app-nav-primary,.app-nav-links,.app-nav-right{min-width:0}.app-nav-link.active{background:#7961f21a!important}.mobile-menu-toggle,.mobile-nav-panel{display:none}.teacher-dashboard,.student-dashboard,.study-session-page,.input-page,.word-bank-page{width:100%;min-width:0}.teacher-dashboard>*,.student-dashboard>*,.input-page>*,.responsive-split>*,.student-dashboard-grid>*{min-width:0}.teacher-dashboard table{min-width:760px}@media (width<=1280px){.app-nav{height:64px!important;padding:0 18px!important}.app-nav-links,.app-nav-right{display:none!important}.mobile-menu-toggle{color:#f8fafc;cursor:pointer;background:#ffffff0e;border:1px solid #ffffff1a;border-radius:8px;place-items:center;width:42px;height:42px;display:inline-grid}.mobile-nav-panel{background:#0c0e1cfb;border-bottom:1px solid #ffffff1a;flex-direction:column;gap:16px;max-height:calc(100dvh - 64px);padding:14px 18px 18px;display:flex;position:fixed;top:64px;left:0;right:0;overflow-y:auto;box-shadow:0 24px 50px #0000006b}.mobile-nav-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.mobile-nav-links .app-nav-link{justify-content:flex-start;width:100%;min-height:46px;background:#ffffff06!important;border:1px solid #fff1!important;padding:10px 12px!important}.mobile-nav-links .app-nav-link.active{background:#7961f224!important;border-color:#818cf852!important}.mobile-language-section,.mobile-profile-row{border-top:1px solid #ffffff13;justify-content:space-between;align-items:center;gap:14px;padding-top:14px;display:flex}.mobile-language-section>span,.mobile-profile-row span{color:var(--color-text-secondary);text-transform:uppercase;font-size:.76rem;font-weight:800}.mobile-profile-row>div{gap:2px;display:grid}.mobile-signout{color:#fda4af;min-height:40px;font:inherit;background:#f65a7817;border:1px solid #f65a783d;border-radius:8px;align-items:center;gap:7px;padding:0 12px;font-weight:750;display:inline-flex}}@media (width<=980px){.responsive-split,.vocab-hero-grid,.student-deck-card{grid-template-columns:minmax(0,1fr)!important}.responsive-split{gap:22px!important}.responsive-split>:first-child{position:static!important}.responsive-summary-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.student-dashboard-grid{grid-template-columns:minmax(0,1fr)!important;display:grid!important}.student-dashboard-grid>div{width:100%;max-width:none!important}.input-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.input-filters>div:first-child{grid-column:1/-1}}@media (width<=720px){.container{padding:22px 14px}.teacher-dashboard,.student-dashboard{padding-top:22px!important}h1{font-size:2rem}.glass-panel{padding:18px}.responsive-card-grid,.responsive-summary-grid,.input-filters{grid-template-columns:minmax(0,1fr)!important}.responsive-controls{grid-template-columns:minmax(0,1fr);width:100%;display:grid!important}.responsive-controls>*{width:100%!important}.teacher-dashboard .glass-panel{min-width:0}.teacher-dashboard table{min-width:700px}.student-deck-card{gap:14px!important;padding:16px!important}.vocab-hero-grid{gap:12px!important}.input-tabs{scrollbar-width:none;flex-wrap:nowrap;width:calc(100vw - 28px);overflow-x:auto}.input-tabs::-webkit-scrollbar{display:none}.input-tabs button{white-space:nowrap;flex:none}.activity-overlay{padding:0}.activity-shell{gap:0;min-height:100dvh}.activity-topbar,.reader-shell .activity-topbar{background:#11131f;flex-wrap:nowrap;gap:8px;min-height:62px;padding:8px 10px}.activity-topbar .btn{white-space:nowrap;min-height:42px;padding:0 12px}.activity-timer{white-space:nowrap;min-width:0;margin-left:auto;font-size:.78rem!important}.activity-timer-detail,.activity-paused-detail{display:none}.video-activity-main{aspect-ratio:16/9;background:#000;border:0;border-radius:0;width:100%;height:min(56.25vw,100dvh - 62px);min-height:240px}.video-with-subtitles,.video-activity-main iframe{width:100%;height:100%;min-height:0}.custom-subtitle-box{max-height:48%;padding:0 10px;bottom:clamp(44px,9vw,62px)}.custom-subtitle-box p{max-width:100%;padding:7px 10px 8px;font-size:clamp(1rem,5vw,1.35rem);line-height:1.28}.reading-pane{padding:34px 18px 90px}.reading-pane h1{font-size:clamp(1.8rem,9vw,2.5rem)}.reading-pane p{font-size:1.08rem;line-height:1.78}.reader-dictionary-popover{width:min(286px,100vw - 16px);max-height:min(430px,100dvh - 16px)}.video-activity-drawer{padding:16px}.video-activity-drawer label.video-activity-response,.video-activity-drawer textarea{min-height:160px}.word-bank-page .glass-panel,.input-page .glass-panel{min-width:0}}@media (width<=520px){.app-nav{padding:0 12px!important}.app-brand>span{font-size:1.05rem!important}.mobile-nav-panel{padding-inline:12px}.mobile-nav-links{grid-template-columns:minmax(0,1fr)}.container{padding-inline:12px}.glass-panel{border-radius:10px;padding:15px}.btn{min-height:44px;padding:10px 14px}.activity-topbar .btn{gap:0;padding:0 11px;font-size:0}.activity-topbar .btn svg{width:18px;height:18px}.activity-topbar .btn:last-child{gap:6px;font-size:.78rem}.activity-timer{white-space:normal;text-align:center;justify-content:center}.responsive-summary-grid{grid-template-columns:minmax(0,1fr)!important}}.card-container{perspective:1200px;cursor:pointer;width:100%;max-width:860px;height:min(560px,100vh - 230px);min-height:460px;margin:0 auto 22px}.card-inner{text-align:center;width:100%;height:100%;transform-style:preserve-3d;will-change:transform;transition:transform .4s ease-in-out;position:relative}.card-container:hover 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