.flashcard[data-astro-cid-tto3rd3s]{perspective:1000px;min-height:500px;height:auto;margin:0 auto;max-width:600px}.flashcard-inner[data-astro-cid-tto3rd3s]{position:relative;width:100%;min-height:500px;text-align:center;transition:transform .6s;transform-style:preserve-3d;cursor:pointer}.flashcard[data-astro-cid-tto3rd3s].flipped .flashcard-inner[data-astro-cid-tto3rd3s]{transform:rotateY(180deg)}.flashcard-front[data-astro-cid-tto3rd3s],.flashcard-back[data-astro-cid-tto3rd3s]{position:absolute;width:100%;min-height:500px;backface-visibility:hidden;border-radius:1rem;border:1px solid rgb(229 231 235);background:#fff;box-shadow:0 10px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.card-content[data-astro-cid-tto3rd3s]{padding:20px;height:100%;min-height:500px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.dark[data-astro-cid-tto3rd3s] .flashcard-front[data-astro-cid-tto3rd3s],.dark[data-astro-cid-tto3rd3s] .flashcard-back[data-astro-cid-tto3rd3s]{background:#111827;border-color:#374151}.flashcard-back[data-astro-cid-tto3rd3s]{transform:rotateY(180deg)}.word-audio-section[data-astro-cid-tto3rd3s]{margin-top:20px;padding:16px;background:#ef44440d;border:1px solid rgba(239,68,68,.2);border-radius:12px;max-width:400px;margin-left:auto;margin-right:auto}.dark[data-astro-cid-tto3rd3s] .word-audio-section[data-astro-cid-tto3rd3s]{background:#ef44441a;border-color:#ef44444d}.example-audio-section[data-astro-cid-tto3rd3s]{margin-top:12px;padding:12px;background:#22c55e0d;border:1px solid rgba(34,197,94,.2);border-radius:8px}.dark[data-astro-cid-tto3rd3s] .example-audio-section[data-astro-cid-tto3rd3s]{background:#22c55e1a;border-color:#22c55e4d}@media (max-width: 640px){.flashcard[data-astro-cid-tto3rd3s],.flashcard-inner[data-astro-cid-tto3rd3s],.flashcard-front[data-astro-cid-tto3rd3s],.flashcard-back[data-astro-cid-tto3rd3s]{min-height:450px}.card-content[data-astro-cid-tto3rd3s]{min-height:450px;padding:16px}.word-audio-section[data-astro-cid-tto3rd3s]{margin-top:16px;padding:12px}}.response-btn[data-astro-cid-tto3rd3s]{padding:1rem;border-radius:.75rem;font-weight:600;transition:all .3s;transform:translateY(0);box-shadow:0 4px 6px -1px #0000001a}.response-btn[data-astro-cid-tto3rd3s]:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #0000001a}.response-btn[data-astro-cid-tto3rd3s]:active{transform:translateY(0)}.audio-player[data-astro-cid-tto3rd3s]{background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-radius:8px;padding:12px;box-shadow:0 2px 4px -1px #0000001a;border:1px solid rgb(226 232 240);transition:all .3s ease}.dark[data-astro-cid-tto3rd3s] .audio-player[data-astro-cid-tto3rd3s]{background:linear-gradient(135deg,#1e293b,#0f172a);border-color:#374151}.audio-player[data-astro-cid-tto3rd3s]:hover{box-shadow:0 4px 6px -1px #0000001a;transform:translateY(-1px)}.audio-controls[data-astro-cid-tto3rd3s]{display:flex;align-items:center;gap:12px}.audio-player[data-astro-cid-tto3rd3s] .play-button[data-astro-cid-tto3rd3s]{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#dc2626,#ef4444);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;position:relative;box-shadow:0 2px 4px #dc26264d}.audio-player[data-astro-cid-tto3rd3s] .play-button[data-astro-cid-tto3rd3s]:hover{transform:scale(1.05);box-shadow:0 4px 8px #dc262666}.audio-player[data-astro-cid-tto3rd3s] .play-button[data-astro-cid-tto3rd3s]:active{transform:scale(.95)}.audio-player[data-astro-cid-tto3rd3s] .play-button[data-astro-cid-tto3rd3s][data-state=loading]{cursor:wait}.audio-player[data-astro-cid-tto3rd3s] .play-button[data-astro-cid-tto3rd3s][data-state=loading] .loading-spinner[data-astro-cid-tto3rd3s]{display:block;animation:spin 1s linear infinite}.audio-player[data-astro-cid-tto3rd3s] .play-button[data-astro-cid-tto3rd3s][data-state=playing]{background:linear-gradient(135deg,#dc2626,#b91c1c)}.progress-container[data-astro-cid-tto3rd3s]{flex:1;display:flex;flex-direction:column;gap:4px}.audio-player[data-astro-cid-tto3rd3s] .progress-bar[data-astro-cid-tto3rd3s]{height:4px;background:#e2e8f0;border-radius:2px;position:relative;cursor:pointer;overflow:hidden}.dark[data-astro-cid-tto3rd3s] .audio-player[data-astro-cid-tto3rd3s] .progress-bar[data-astro-cid-tto3rd3s]{background:#374151}.audio-player[data-astro-cid-tto3rd3s] .progress-fill[data-astro-cid-tto3rd3s]{height:100%;background:linear-gradient(90deg,#dc2626,#ef4444);width:0%;transition:width .1s ease;border-radius:2px}.audio-player[data-astro-cid-tto3rd3s] .time-display[data-astro-cid-tto3rd3s]{display:flex;justify-content:space-between;font-size:10px;color:#6b7280;font-family:SF Mono,Monaco,Cascadia Code,monospace}.audio-player[data-astro-cid-tto3rd3s] .volume-control[data-astro-cid-tto3rd3s]{display:flex;align-items:center;gap:6px;position:relative}.audio-player[data-astro-cid-tto3rd3s] .volume-button[data-astro-cid-tto3rd3s]{background:none;border:none;color:#6b7280;cursor:pointer;padding:6px;border-radius:6px;transition:all .2s ease}.audio-player[data-astro-cid-tto3rd3s] .volume-button[data-astro-cid-tto3rd3s]:hover{background:#f8fafc;color:#4b5563}.dark[data-astro-cid-tto3rd3s] .audio-player[data-astro-cid-tto3rd3s] .volume-button[data-astro-cid-tto3rd3s]:hover{background:#374151;color:#9ca3af}.audio-player[data-astro-cid-tto3rd3s] .volume-slider[data-astro-cid-tto3rd3s]{width:60px;height:3px;background:#e2e8f0;border-radius:2px;outline:none;-webkit-appearance:none}.audio-player[data-astro-cid-tto3rd3s] .volume-slider[data-astro-cid-tto3rd3s]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:#dc2626;border-radius:50%;cursor:pointer}.audio-player[data-astro-cid-tto3rd3s] .error-message[data-astro-cid-tto3rd3s]{display:flex;align-items:center;gap:6px;padding:8px;background:#fef2f2;border:1px solid rgb(252 165 165);border-radius:6px;color:#b91c1c;font-size:12px;margin-top:8px}.dark[data-astro-cid-tto3rd3s] .audio-player[data-astro-cid-tto3rd3s] .error-message[data-astro-cid-tto3rd3s]{background:#450a0a;border-color:#991b1b;color:#f87171}.audio-player[data-astro-cid-tto3rd3s] .retry-button[data-astro-cid-tto3rd3s]{padding:2px 6px;background:#dc2626;color:#fff;border:none;border-radius:3px;cursor:pointer;font-size:10px;transition:background .2s ease}.audio-player[data-astro-cid-tto3rd3s] .retry-button[data-astro-cid-tto3rd3s]:hover{background:#b91c1c}.audio-player[data-astro-cid-tto3rd3s] .hidden[data-astro-cid-tto3rd3s]{display:none!important}@media (max-width: 640px){.audio-player[data-astro-cid-tto3rd3s] .audio-controls[data-astro-cid-tto3rd3s]{gap:8px}.audio-player[data-astro-cid-tto3rd3s] .volume-control[data-astro-cid-tto3rd3s]{display:none}}.voice-option[data-astro-cid-tto3rd3s]{cursor:pointer}.voice-card[data-astro-cid-tto3rd3s]{padding:12px;border:2px solid rgb(226 232 240);border-radius:12px;text-align:center;transition:all .3s ease;background:#fff}.dark[data-astro-cid-tto3rd3s] .voice-card[data-astro-cid-tto3rd3s]{background:#1f2937;border-color:#374151}.voice-card[data-astro-cid-tto3rd3s]:hover{border-color:#ef4444;transform:translateY(-2px);box-shadow:0 4px 6px -1px #0000001a}.voice-option[data-astro-cid-tto3rd3s] input[data-astro-cid-tto3rd3s]:checked+.voice-card[data-astro-cid-tto3rd3s]{border-color:#dc2626;background:linear-gradient(135deg,#fef2f2,#fca5a5);color:#b91c1c}.dark[data-astro-cid-tto3rd3s] .voice-option[data-astro-cid-tto3rd3s] input[data-astro-cid-tto3rd3s]:checked+.voice-card[data-astro-cid-tto3rd3s]{background:linear-gradient(135deg,#450a0a,#991b1b);color:#f87171}.voice-name[data-astro-cid-tto3rd3s]{font-weight:600;font-size:14px;margin-bottom:4px}.voice-desc[data-astro-cid-tto3rd3s]{font-size:11px;opacity:.8}@media (max-width: 640px){.voice-card[data-astro-cid-tto3rd3s]{padding:8px}.voice-name[data-astro-cid-tto3rd3s]{font-size:12px}.voice-desc[data-astro-cid-tto3rd3s]{font-size:10px}}