:root{--tlang-header-color: #1a202c;--tlang-header-font-size: 1.25rem;--tlang-header-font-weight: 600;--tlang-background-color: #f7fafc;--tlang-border-radius: 12px;--tlang-padding: 1.5rem;--tlang-text-color: #2d3748;--tlang-text-font-size: 1.5rem;--slang-header-color: #4a5568;--slang-header-font-size: 1rem;--slang-header-font-weight: 500;--slang-background-color: #edf2f7;--slang-border-radius: 8px;--slang-padding: 1rem;--slang-text-color: #718096;--slang-text-font-size: 1.125rem;--button-background-color: #4299e1;--button-text-color: #ffffff;--button-border-radius: 24px;--button-padding: 1rem 2rem;--nav-button-color: #718096;--nav-button-hover-color: #4a5568;--app-max-width: 600px;--app-min-height: 100vh;--app-background-color: #ffffff;--selector-background-color: #ffffff;--selector-width: 100%;--selector-transition: transform .3s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--app-background-color);color:var(--tlang-text-color)}button,.button,[role=button],a,.speaker-button,.reveal-button,.close-button,.back-button,.nav-button,.story-item,.swipe-hint,.hint-indicator,.menu-card{cursor:pointer!important}.dynamic-background{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1}.dynamic-background svg{position:absolute;display:block}.app-viewport{width:100vw;max-width:var(--app-max-width);height:100dvh;max-height:100dvh;margin:0 auto;display:flex;flex-direction:column;overflow:hidden;position:relative;touch-action:none}.page-container{display:flex;width:300%;flex:1;min-height:0;transition:transform .4s cubic-bezier(.25,.46,.45,.94);transform:translate(-33.33%)}.page-container.show-menu{transform:translate(0)}.page-container.show-story{transform:translate(-66.66%)}.page{width:33.33%;flex:1;min-height:0;overflow-y:auto;flex-shrink:0;display:flex;flex-direction:column;position:relative}.page:has(.main-screen){overflow:hidden;display:flex;flex-direction:column;max-height:100%}.app-header{height:50px;display:flex;align-items:center;padding:0 1rem;border-bottom:1px solid #e2e8f0}.app-header-brand{display:flex;align-items:center;gap:.75rem}.app-header h1{font-size:1.5rem;font-weight:700;color:#2d3748;margin:0}.app-logo{width:40px;height:40px}.app-main{flex:1;padding:1rem;overflow-y:auto}.app-footer{flex-shrink:0;height:50px;display:flex;align-items:center;justify-content:center;border-top:1px solid #e2e8f0;color:var(--nav-button-color);font-size:.875rem}.loading{display:flex;justify-content:center;align-items:center;min-height:200px;color:var(--nav-button-color)}.error{padding:1rem;background-color:#fed7d7;border-radius:8px;color:#c53030;text-align:center}.main-screen{display:flex;flex-direction:column;gap:.5rem;padding:.5rem 1rem;flex:1;min-height:0;overflow:hidden}.main-screen>.loading:first-child{flex:1;display:flex;justify-content:center;align-items:center}.tlang-section{display:flex;flex-direction:column;gap:.5rem;flex:1;min-height:0}.tlang-header{color:var(--tlang-header-color);font-size:var(--tlang-header-font-size);font-weight:var(--tlang-header-font-weight);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;gap:.5rem}.tlang-label{flex:1;text-align:center}.tlang-box{background-color:var(--tlang-background-color);border-radius:var(--tlang-border-radius);padding:var(--tlang-padding);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #0000001a;overflow:hidden;flex:1;min-height:100px}.tlang-text{color:var(--tlang-text-color);font-size:var(--tlang-text-font-size);text-align:center;line-height:1.4;overflow:hidden}.speaker-button{width:44px;height:44px;border-radius:50%;border:2px solid #a0aec0;background:transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;flex-shrink:0}.speaker-button:hover{border-color:#718096;transform:scale(1.05)}.speaker-button:active{transform:scale(.95)}.speaker-button svg{width:24px;height:24px;fill:#a0aec0;transition:fill .2s ease}.speaker-button.on{background:var(--button-background-color);border-color:var(--button-background-color)}.speaker-button.on svg{fill:#fff}.speaker-button.speaking{animation:speaker-glow 1.5s ease-in-out infinite}@keyframes speaker-glow{0%,to{box-shadow:0 0 #4299e1b3}50%{box-shadow:0 0 0 8px #4299e100}}.tlang-text.speaking,.slang-text.speaking{animation:text-pulse 1s ease-in-out infinite}@keyframes text-pulse{0%,to{opacity:1}50%{opacity:.7}}.reveal-button{position:absolute;top:0;left:50%;transform:translate(-50%);background-color:var(--button-background-color);color:var(--button-text-color);border-radius:var(--button-border-radius);height:50px;padding:0 1.5rem;font-size:1rem;font-weight:600;border:none;cursor:pointer;box-shadow:0 2px 8px #4299e14d;opacity:1;transition:opacity .3s ease,pointer-events .3s ease,transform .2s ease,box-shadow .2s ease;pointer-events:auto;z-index:10}.reveal-button:hover{transform:translate(-50%) scale(1.05);box-shadow:0 4px 12px #4299e166}.reveal-button.hidden{opacity:0;pointer-events:none;z-index:-1}.slang-section{display:flex;flex-direction:column;gap:.5rem;flex:1;min-height:0}.slang-header{color:var(--slang-header-color);font-size:var(--slang-header-font-size);font-weight:var(--slang-header-font-weight);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;gap:.5rem;opacity:0;transition:opacity .3s ease;pointer-events:auto}.slang-header.revealed{opacity:1}.slang-label{flex:1;text-align:center}.slang-box{border-radius:var(--slang-border-radius);padding:var(--slang-padding);padding-top:60px;display:flex;align-items:center;justify-content:center;overflow:hidden;flex:1;min-height:100px;position:relative;transition:background-color .3s ease,box-shadow .3s ease}.slang-box.revealed{background-color:var(--slang-background-color);box-shadow:0 1px 3px #0000001a}.slang-text{color:var(--slang-text-color);font-size:var(--slang-text-font-size);text-align:center;line-height:1.4;overflow:hidden;opacity:0;transition:opacity .3s ease}.slang-text.revealed{opacity:1}.navigation{display:flex;align-items:center;justify-content:space-between;gap:1rem;width:100%;padding:0 1rem}.nav-button{background-color:transparent;color:var(--nav-button-color);border:none;border-radius:8px;padding:.75rem 1.25rem;font-size:1.5rem;font-weight:600;cursor:pointer;transition:background-color .2s,color .2s,transform .1s;display:flex;align-items:center;justify-content:center;touch-action:manipulation;-webkit-tap-highlight-color:transparent}@media(hover:hover){.nav-button:hover{background-color:var(--nav-button-hover-color);color:#fff}}.nav-button.nav-button-pressed{background-color:var(--nav-button-hover-color);color:#fff;transform:scale(.95)}.nav-button:active{transform:none}.nav-button:focus{outline:none}.nav-counter{color:var(--nav-button-color);font-size:.875rem;font-weight:600;min-width:60px;text-align:center}.main-page-footer{flex-shrink:0;height:85px;border-top:1px solid #e2e8f0;background:transparent;display:grid;grid-template-columns:1fr auto 1fr;grid-template-rows:1fr 1fr;padding:0}.main-page-footer .nav-button-prev{grid-column:1;grid-row:1;display:flex;align-items:center;justify-content:center}.main-page-footer .swipe-hint-left{grid-column:1;grid-row:2;display:flex;align-items:center;justify-content:flex-start;text-align:left;padding:.25rem}.main-page-footer .nav-counter{grid-column:2;grid-row:1;display:flex;align-items:center;justify-content:center}.main-page-footer .swipe-hint-right{grid-column:3;grid-row:2;display:flex;align-items:center;justify-content:flex-end;text-align:right;padding:.25rem}.main-page-footer .nav-button-next{grid-column:3;grid-row:1;display:flex;align-items:center;justify-content:center}.story-page{display:flex;flex-direction:column;height:100%;min-height:0}.story-page-header{display:flex;align-items:center;justify-content:space-between;padding:1rem;border-bottom:1px solid #e2e8f0}.story-page-header h2{font-size:1.25rem;font-weight:700;color:var(--tlang-header-color);margin:0}.close-button{background:none;border:none;font-size:1.5rem;color:var(--nav-button-color);cursor:pointer;padding:.25rem .5rem;line-height:1}.close-button:hover{color:var(--nav-button-hover-color)}.story-page-body{flex:1;min-height:0;overflow-y:auto;padding:1rem;display:flex;flex-direction:column}.story-page-footer{flex-shrink:0;height:40px;border-top:1px solid #e2e8f0;background:transparent;display:flex;align-items:center;justify-content:center}.menu-page{display:flex;flex-direction:column;height:100%;min-height:0;background:transparent}.menu-page-body{flex:1;min-height:0;overflow-y:auto;padding:1rem}.menu-page-footer{flex-shrink:0;height:40px;border-top:1px solid #e2e8f0;background:transparent;display:flex;align-items:center;justify-content:center}.theme-group{margin-bottom:1.5rem}.theme-name{font-size:1rem;font-weight:600;color:var(--tlang-header-color);margin-bottom:.75rem;text-transform:capitalize}.story-list{display:flex;flex-direction:column;gap:.5rem}.story-item{padding:1rem;border-radius:8px;background-color:transparent;cursor:pointer;transition:all .2s;border:2px solid transparent}.story-item:hover{background-color:#edf2f7cc;transform:translate(4px)}.story-item.selected{border-color:var(--button-background-color);background-color:#ebf8ffcc}.story-title{font-size:1rem;font-weight:600;color:var(--tlang-header-color);margin-bottom:.25rem}.story-description{font-size:.875rem;color:var(--slang-text-color);margin-bottom:.5rem}.story-meta{font-size:.75rem;color:var(--nav-button-color)}.swipe-hint{display:flex;text-align:center;color:var(--nav-button-color);font-size:.75rem;padding:0 .25rem;opacity:.7;transition:opacity .2s,color .2s;width:100%}.swipe-hint-left,.swipe-hint-right{flex:1;cursor:pointer;padding:.25rem;transition:opacity .2s,color .2s;touch-action:manipulation}.swipe-hint-left:hover,.swipe-hint-right:hover{opacity:1;color:var(--nav-button-hover-color)}@keyframes pulse{0%,to{opacity:.5}50%{opacity:.8}}@media screen and (max-width:768px)and (orientation:landscape){.app-viewport:before{content:"Please rotate your device to portrait mode";position:fixed;top:0;left:0;width:100%;height:100%;background:#1a202c;color:#fff;display:flex;align-items:center;justify-content:center;z-index:9999;font-size:1.25rem;text-align:center;padding:1rem}.app-viewport>*{display:none}}.menu-overlay{position:absolute;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:1002;pointer-events:auto}@supports not (backdrop-filter: blur(4px)){.menu-overlay{background:#0000004d}}.menu-overlay.open{opacity:1;visibility:visible}.menu-sheet-container{position:absolute;inset:0;pointer-events:none;z-index:1001}.menu-sheet{position:absolute;top:0;left:0;bottom:0;width:100%;background:#fafafa;border-radius:0;box-shadow:none;transform:translate(-100%);transition:transform .4s cubic-bezier(.25,.46,.45,.94);pointer-events:auto;z-index:1003;display:flex;flex-direction:column;max-height:100%;overflow:hidden}.menu-sheet.open{transform:translate(0);box-shadow:4px 0 20px #00000026}.menu-sheet-handle{width:40px;height:4px;background:#d1d5db;border-radius:2px;margin:0 auto 20px}.menu-card-grid{flex:1;min-height:0;overflow-y:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;padding:1rem}.menu-card{background:linear-gradient(135deg,#3b82f6,#14b8a6);border-radius:12px;padding:24px 16px;text-align:center;cursor:pointer;position:relative;min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:transform .15s ease,box-shadow .15s ease;opacity:0;animation:cardFadeIn .3s ease forwards}@keyframes cardFadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.menu-card:active{transform:scale(.98)}.menu-card.disabled{background:linear-gradient(135deg,#9ca3af,#6b7280);cursor:not-allowed}.menu-card-badge{position:absolute;top:8px;right:8px;background:#0000004d;color:#fff;font-size:10px;padding:4px 8px;border-radius:12px;font-weight:600}.menu-card-icon{margin-bottom:12px}.menu-card-label{color:#fff;font-weight:600;font-size:16px}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-4px)}40%{transform:translate(4px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.menu-card.shake{animation:shake .5s ease}.menu-toast{position:absolute;bottom:100px;left:50%;transform:translate(-50%);background:#000c;color:#fff;padding:12px 24px;border-radius:24px;font-size:14px;opacity:0;transition:opacity .3s ease;z-index:2000}.menu-toast.show{opacity:1}.hint-indicator-container{position:absolute;bottom:10px;left:10px;z-index:100;pointer-events:none}.hint-indicator{color:var(--nav-button-color);font-size:.75rem;cursor:pointer;width:60px;height:50px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;opacity:.7;transition:opacity .2s,color .2s,transform .2s;user-select:none;pointer-events:auto;background:#ffffffe6;border-radius:0 16px 16px 0;box-shadow:2px 0 8px #0000001a}.hint-indicator svg{width:22px;height:16px}.hint-indicator-label{font-size:11px;font-weight:500;letter-spacing:.5px}.hint-indicator:hover,.hint-indicator:active{opacity:1;color:var(--nav-button-hover-color);transform:scale(1.05)}.hint-indicator.hidden{display:none}@keyframes pulse{0%,to{opacity:.7;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}.blog-page{height:100%;display:flex;flex-direction:column;background:#f9fafb;max-width:var(--app-max-width);margin:0 auto;width:100%}.blog-header{height:50px;display:flex;align-items:center;padding:0 1rem;border-bottom:1px solid #e2e8f0;background:#fff;gap:.75rem}.blog-header-brand{display:flex;align-items:center;gap:.75rem;flex:1}.blog-header-brand h1{font-size:1.5rem;font-weight:700;color:#2d3748;margin:0}.blog-header .app-logo{width:40px;height:40px}.blog-header-title{font-size:1.25rem;font-weight:600;color:#6b7280}.home-button{background:none;border:none;cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:background-color .2s ease}.home-button:hover{background-color:#f3f4f6}.home-button svg{fill:#6b7280;width:24px;height:24px}.home-button:hover svg{fill:#3b82f6}.blog-content{flex:1;overflow-y:auto;padding:24px 16px}.blog-post{max-width:600px;margin:0 auto;background:#fff;padding:24px;border-radius:12px;box-shadow:0 1px 3px #0000001a}.blog-post h2{color:#111827;font-size:24px;margin-bottom:8px}.blog-post h3{color:#374151;font-size:18px;margin-top:24px;margin-bottom:12px}.blog-date{color:#6b7280;font-size:14px;margin-bottom:16px}.blog-post p{color:#374151;line-height:1.6;margin-bottom:16px}.blog-post ul{color:#374151;line-height:1.6;margin-bottom:16px;padding-left:20px}.blog-post li{margin-bottom:8px}.blog-signature{font-style:italic;color:#6b7280;margin-top:32px}.placeholder-page{height:100%;display:flex;flex-direction:column;background:#f9fafb;max-width:var(--app-max-width);margin:0 auto;width:100%}.placeholder-header{background:linear-gradient(135deg,#9ca3af,#6b7280);padding:16px}.placeholder-header .back-button{background:#fff;border:none;padding:8px 16px;border-radius:8px;cursor:pointer;font-weight:600}.placeholder-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px}.placeholder-content h2{color:#111827;font-size:32px;margin-bottom:16px}.coming-soon{color:#6b7280;font-size:18px;font-style:italic;margin-bottom:8px}.placeholder-content p{color:#374151;line-height:1.6}.secondary-pages-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;pointer-events:none;z-index:-1}.secondary-pages-overlay.visible{opacity:1;visibility:visible;pointer-events:auto;z-index:500}.secondary-page{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;pointer-events:none;overflow-y:auto;background:#fff;z-index:1}.secondary-page.visible{opacity:1;visibility:visible;pointer-events:auto}