:root{--clr-primary:#89e219;--clr-primary-dark:#58cc02;--clr-bg:#f8f9fa;--clr-text:#1a1a1b;--clr-hint:#6c757d;--clr-surface:#fff;--clr-surface-elevated:#f1f3f5;--clr-border:#e9ecef;--clr-orange:#ff9600;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:Inter,system-ui,-apple-system,sans-serif}body{background-color:var(--clr-bg);color:var(--clr-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-user-select:none;user-select:none;touch-action:pan-y;min-height:100vh;margin:0;padding:0;overflow-x:hidden}.glass-panel{-webkit-backdrop-filter:blur(16px);border-radius:var(--radius-md);background:#ffffffbf;border:1px solid #fff9;box-shadow:0 4px 12px #0000000a}.app-container{background-color:var(--clr-bg);max-width:600px;min-height:100%;margin:0 auto;position:relative}.view-container{padding:24px;padding-top:calc(env(safe-area-inset-top,30px) + 120px);box-sizing:border-box;flex-direction:column;height:100vh;padding-bottom:40px;display:flex;overflow-y:auto}.view-container.review-mode{overflow:hidden}.navbar{justify-content:space-between;align-items:center;margin-bottom:32px;display:flex}.nav-brand{text-transform:uppercase;letter-spacing:1.5px;color:var(--clr-primary-dark);font-size:13px;font-weight:800}.nav-greeting{align-items:center;gap:8px;margin:4px 0 0;font-size:26px;font-weight:800;display:flex}.nav-actions{align-items:center;gap:12px;display:flex}.badge-streak{color:var(--clr-orange);align-items:center;gap:6px;padding:6px 14px;font-size:16px;font-weight:800;display:flex}.icon-btn{background:var(--clr-surface-elevated);width:44px;height:44px;color:var(--clr-hint);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;transition:background .2s;display:flex}.icon-btn:hover{background:#e2e8f0}.btn-primary{background:linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));color:#fff;border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:12px;width:100%;padding:20px 24px;font-size:18px;font-weight:800;transition:transform .1s,box-shadow .1s;display:flex;box-shadow:0 4px 20px #58cc024d,0 5px #46a302}.btn-primary:active{transform:translateY(5px);box-shadow:0 0 #46a302}.btn-secondary{color:var(--clr-text);border:2px solid var(--clr-border);border-radius:var(--radius-md);cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:10px;width:100%;margin-top:16px;margin-bottom:32px;padding:16px 24px;font-size:16px;font-weight:700;transition:background .2s;display:flex}.btn-secondary:hover{background:#00000008}.topic-header{color:var(--clr-text);align-items:center;gap:10px;margin-bottom:20px;font-size:22px;font-weight:800;display:flex}.topic-list{flex-direction:column;gap:12px;display:flex}.topic-card{cursor:pointer;justify-content:space-between;align-items:center;padding:20px;transition:transform .2s;display:flex}.topic-card:active{transform:scale(.98)}.topic-title{margin:0;font-size:18px;font-weight:800}.topic-lang{color:var(--clr-hint);margin-top:6px;font-size:14px;font-weight:500}.topic-action{color:var(--clr-hint);font-size:14px;font-weight:800}.topic-empty{color:var(--clr-hint);text-align:center;margin-top:24px;font-style:italic}.review-header{z-index:10;justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.btn-exit{color:var(--clr-hint);cursor:pointer;background:0 0;border:none;padding:8px 0;font-size:16px;font-weight:800}.review-progress{padding:8px 16px;font-size:16px;font-weight:800}.stack-area{flex:1;justify-content:center;align-items:center;display:flex;position:relative}.card-wrapper{perspective:1000px;z-index:100;touch-action:none;width:100%;max-width:340px;height:60vh;position:absolute}.card-flipper{width:100%;height:100%;transform-style:preserve-3d;cursor:grab;touch-action:none;position:relative}.card-flipper:active{cursor:grabbing}.card-face{backface-visibility:hidden;border-radius:var(--radius-lg);flex-direction:column;width:100%;height:100%;display:flex;position:absolute;overflow:hidden;box-shadow:0 16px 40px #0000001a}.card-front{background:var(--clr-surface);border:3px solid var(--clr-border)}.card-image-placeholder{background:var(--clr-surface-elevated);border-bottom:3px solid var(--clr-border);justify-content:center;align-items:center;height:60%;font-size:72px;display:flex}.card-image{object-fit:cover;border-bottom:3px solid var(--clr-border);width:100%;height:60%}.card-word{text-align:center;flex:1;justify-content:center;align-items:center;padding:24px;font-size:36px;font-weight:800;display:flex}.card-back{background:var(--clr-primary-dark);color:#fff;text-align:center;border-bottom:8px solid #00000026;justify-content:center;align-items:center;padding:32px;transform:rotateY(180deg)}.back-hint-word{opacity:.8;text-transform:uppercase;letter-spacing:2px;margin-bottom:16px;font-size:18px;font-weight:700}.back-translation{margin-bottom:40px;font-size:48px;font-weight:800}.back-instructions p{opacity:.8;margin:8px 0;font-size:15px;font-weight:500}.review-done{text-align:center;flex-direction:column;justify-content:center;align-items:center;height:100%;display:flex}.review-done h2{margin:24px 0 12px;font-size:28px;font-weight:800}.review-done p{color:var(--clr-hint);margin-bottom:32px;font-size:16px}.ocr-header{align-items:center;gap:16px;margin-bottom:32px;display:flex}.ocr-title{margin:0;font-size:22px;font-weight:800}.ocr-loader{height:60vh;color:var(--clr-primary-dark);flex-direction:column;justify-content:center;align-items:center;display:flex}.ocr-loader p{color:var(--clr-hint);margin-top:24px;font-size:16px;font-weight:700}.ocr-result-list{flex-direction:column;gap:12px;display:flex}.ocr-result-list p{margin-bottom:8px;font-size:18px;font-weight:800}.ocr-result-item{justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.ocr-word{font-size:18px;font-weight:800}.ocr-trans{color:var(--clr-hint);font-weight:600}@keyframes slideDown{0%{opacity:0;transform:translateY(-100%)}to{opacity:1;transform:translateY(0)}}