.app-shell{display:flex;flex-direction:column;height:100dvh;overflow:hidden}.app-shell>.bottom-nav{order:1}.app-content{flex:1;display:flex;flex-direction:column;min-height:0;order:0;overflow:hidden}@media(min-width:1024px){.app-shell{flex-direction:row}.app-shell>.bottom-nav{order:0}.app-content{flex:1;min-width:0;order:1}}.letter-dialog{border:none;background:transparent;padding:0;max-width:100vw;max-height:100vh;width:100%;height:100%;display:flex;align-items:center;justify-content:center}.letter-dialog::backdrop{background:var(--color-overlay)}.letter-dialog__card{background:var(--color-white);border-radius:20px;padding:24px;width:300px;max-width:calc(100vw - 48px);display:flex;flex-direction:column;gap:16px;box-shadow:0 8px 24px #0003}.letter-dialog__header{display:flex;justify-content:space-between;align-items:center}.letter-dialog__title{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:600}.letter-dialog__close{width:32px;height:32px;border-radius:50%;border:none;background:var(--color-close-bg);display:flex;align-items:center;justify-content:center;cursor:pointer;color:#666;transition:background .15s}.letter-dialog__close:hover{background:var(--color-border)}.letter-dialog__date{color:var(--color-text-secondary);font-size:14px;text-align:center}.letter-dialog__input-wrapper{display:flex;justify-content:center}.letter-dialog__input{width:88px;height:88px;border:2px solid var(--color-primary);border-radius:16px;background:var(--color-bg-pink);font-size:40px;font-weight:700;color:var(--color-primary);text-align:center;text-transform:uppercase;outline:none;caret-color:var(--color-primary);font-family:var(--font-family)}.letter-dialog__input:focus{box-shadow:0 0 0 3px #e84b7a40}.letter-dialog__input::placeholder{color:#e84b7a4d}.letter-dialog__hint{color:var(--color-text-secondary);font-size:12px;text-align:center}.letter-dialog__save{width:100%;height:48px;border:none;border-radius:12px;background:var(--color-primary);color:var(--color-white);font-size:14px;font-weight:600;cursor:pointer;font-family:var(--font-family);transition:opacity .15s}.letter-dialog__save:hover{opacity:.9}.letter-dialog__save:active{opacity:.8}@media(min-width:768px){.letter-dialog__card{width:360px;padding:28px;gap:20px;border-radius:24px}.letter-dialog__title{font-size:20px}.letter-dialog__input{width:96px;height:96px;font-size:44px;border-radius:20px}.letter-dialog__date{font-size:15px}.letter-dialog__hint{font-size:13px}.letter-dialog__save{height:52px;font-size:15px;border-radius:14px}}@media(min-width:1024px){.letter-dialog__card{width:400px;padding:32px}.letter-dialog__input{width:104px;height:104px;font-size:48px}}.map-view{background:var(--color-bg-map);flex:1;display:flex;overflow:hidden;position:relative;min-height:0}.map-view__wrapper,.map-view__content{width:100%!important;height:100%!important}.map-view__image{width:100%;height:100%;display:block;-webkit-user-select:none;user-select:none;touch-action:none}.map-view__image svg{width:100%;height:100%;display:block}.map-view__controls{position:absolute;bottom:16px;right:16px;display:flex;flex-direction:column;gap:8px;z-index:10}.map-view__control-btn{width:40px;height:40px;border-radius:50%;border:none;background:#fff;color:var(--color-text, #333);box-shadow:0 2px 8px #00000026;cursor:pointer;display:flex;align-items:center;justify-content:center;-webkit-tap-highlight-color:transparent;transition:background .15s ease,transform .15s ease}.map-view__control-btn:hover{background:#f0f0f0}.map-view__control-btn:active{transform:scale(.92)}@media(min-width:768px){.map-view__controls{bottom:24px;right:24px;gap:10px}.map-view__control-btn{width:48px;height:48px}}@media(min-width:1024px){.map-view__controls{bottom:32px;right:32px}}.bottom-nav{display:flex;background:var(--color-white);border-top:1px solid var(--color-border);padding:12px 0 calc(12px + env(safe-area-inset-bottom,0px));position:sticky;bottom:0;z-index:100}.bottom-nav__tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 0;text-decoration:none;color:var(--color-inactive);transition:color .15s ease,background .15s ease;-webkit-tap-highlight-color:transparent;border-radius:0}.bottom-nav__tab--active{color:var(--color-primary)}.bottom-nav__label{font-size:10px;font-weight:500;letter-spacing:.5px;text-transform:uppercase}.bottom-nav__tab--active .bottom-nav__label{font-weight:600}.bottom-nav__brand{display:none}@media(min-width:1024px){.bottom-nav{flex-direction:column;width:var(--sidebar-width);flex-shrink:0;border-top:none;border-right:1px solid var(--color-border);padding:0;position:static;height:100dvh;gap:4px}.bottom-nav__brand{display:flex;align-items:center;gap:10px;padding:24px 20px 20px;font-size:15px;font-weight:700;color:var(--color-primary);letter-spacing:-.01em}.bottom-nav__tab{flex:0;flex-direction:row;justify-content:flex-start;gap:12px;padding:12px 20px;border-radius:12px;margin:0 8px}.bottom-nav__tab:hover,.bottom-nav__tab--active{background:var(--color-bg-pink)}.bottom-nav__label{font-size:14px;font-weight:500;letter-spacing:0;text-transform:none}.bottom-nav__tab--active .bottom-nav__label{font-weight:600}}.rules{background:var(--color-bg-content);padding:0 20px 24px;display:flex;flex-direction:column;gap:16px;min-height:0;flex:1;overflow-y:auto}.rules__header{text-align:center;padding-top:16px}.rules__title{font-size:28px;font-weight:700;margin:0;color:#1a1a1a}.rules__subtitle{font-size:14px;color:var(--color-text-secondary);margin:4px 0 0}.rules__steps{display:flex;flex-direction:column;gap:10px}.rules__step{display:flex;align-items:flex-start;gap:12px;background:var(--color-white);border-radius:12px;padding:14px 16px;border:1px solid var(--color-border);transition:border-color .15s ease}.rules__step-number{width:28px;height:28px;border-radius:50%;background:var(--color-primary);color:var(--color-white);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0}.rules__step-text{font-size:14px;line-height:1.5;margin:3px 0 0;color:#333}.rules__info{background:var(--color-bg-pink);border-radius:12px;padding:16px;text-align:center}.rules__info-title{font-size:16px;font-weight:700;margin:0 0 8px;color:#1a1a1a}.rules__info-text{font-size:13px;color:var(--color-text-secondary);margin:0;line-height:1.5}@media(min-width:768px){.rules{padding:0 32px 32px;max-width:var(--content-max-width);margin:0 auto;width:100%;gap:20px}.rules__header{padding-top:32px}.rules__title{font-size:32px}.rules__subtitle{font-size:16px}.rules__steps{gap:12px}.rules__step{padding:16px 20px}.rules__step-number{width:32px;height:32px;font-size:14px}.rules__step-text{font-size:15px}.rules__info{padding:20px}.rules__info-title{font-size:18px}.rules__info-text{font-size:14px}}@media(min-width:1024px){.rules{padding:0 40px 40px;gap:24px}.rules__header{padding-top:40px;text-align:left}.rules__title{font-size:36px}.rules__steps{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.rules__step{border-radius:14px}.rules__step:hover{border-color:var(--color-primary)}.rules__info{border-radius:14px}}.puzzle{background:var(--color-bg-content);padding:0 20px 24px;display:flex;flex-direction:column;gap:20px;min-height:0;flex:1;overflow-y:auto}.puzzle__header{text-align:center;padding-top:16px}.puzzle__title{font-size:28px;font-weight:700;margin:0;color:#1a1a1a}.puzzle__subtitle{font-size:14px;color:var(--color-text-secondary);margin:4px 0 0}.puzzle__grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.puzzle__cell{display:flex;flex-direction:column;align-items:center;justify-content:center;aspect-ratio:1;border:1px solid var(--color-border);border-radius:8px;background:var(--color-white);cursor:pointer;padding:2px;-webkit-tap-highlight-color:transparent;transition:background .15s,border-color .15s;font-family:var(--font-family)}.puzzle__cell:active{background:var(--color-border)}.puzzle__cell--filled{background:var(--color-bg-pink)}.puzzle__cell-number{font-size:10px;color:var(--color-text-secondary);line-height:1}.puzzle__cell-letter{font-size:18px;font-weight:700;color:var(--color-primary);line-height:1.2}.puzzle__cell:not(.puzzle__cell--filled) .puzzle__cell-letter{color:var(--color-inactive);font-weight:400}.puzzle__progress{display:flex;flex-direction:column;align-items:center;gap:8px}.puzzle__progress-bar{width:100%;height:6px;background:var(--color-border);border-radius:3px;overflow:hidden}.puzzle__progress-fill{height:100%;background:var(--color-primary);border-radius:3px;transition:width .3s ease}.puzzle__progress-text{font-size:13px;color:var(--color-text-secondary)}.puzzle__hint{display:flex;gap:12px;background:var(--color-bg-pink);border-radius:12px;padding:12px 16px}.puzzle__hint-icon{font-size:20px;flex-shrink:0}.puzzle__hint-title{font-weight:600;font-size:14px;margin:0 0 2px}.puzzle__hint-text{font-size:13px;color:var(--color-text-secondary);margin:0;line-height:1.4}@media(min-width:768px){.puzzle{padding:0 32px 32px;max-width:var(--content-max-width);margin:0 auto;width:100%}.puzzle__header{padding-top:32px}.puzzle__title{font-size:32px}.puzzle__subtitle{font-size:16px}.puzzle__grid{gap:8px}.puzzle__cell{aspect-ratio:auto;height:56px;border-radius:10px}.puzzle__cell-number{font-size:11px}.puzzle__cell-letter{font-size:20px}.puzzle__progress-text{font-size:14px}.puzzle__hint{padding:16px 20px}.puzzle__hint-title{font-size:15px}.puzzle__hint-text{font-size:14px}}@media(min-width:1024px){.puzzle{padding:0 40px 40px;gap:24px}.puzzle__header{padding-top:40px;text-align:left}.puzzle__title{font-size:36px}.puzzle__grid{gap:10px}.puzzle__cell{height:64px;border-radius:12px}.puzzle__cell:hover{background:var(--color-bg-pink);border-color:var(--color-primary)}.puzzle__cell-number{font-size:12px}.puzzle__cell-letter{font-size:22px}}:root{--color-primary: #e84b7a;--color-bg-map: #f9f7eb;--color-bg-content: #fff8f0;--color-bg-pink: #fde8ef;--color-border: #e8e0d8;--color-text-secondary: #7a7a7a;--color-inactive: #9b9b9b;--color-overlay: rgb(0 0 0 / 53%);--color-white: #ffffff;--color-close-bg: #f0ebe5;--font-family: "Inter", system-ui, sans-serif;--sidebar-width: 220px;--content-max-width: 640px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);font-size:16px;line-height:1.5;color:#333;background-color:var(--color-bg-map);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overscroll-behavior:none}#root{height:100dvh;display:flex;flex-direction:column;overflow:hidden}