:root{--primary: #1A73E8;--on-primary: #ffffff;--primary-container: #D3E3FD;--on-primary-container: #041E49;--tertiary: #E8710A;--tertiary-container: #FEEFC3;--on-tertiary-container: #442B00;--surface: #ffffff;--surface-variant: #F1F3F4;--on-surface: #1F1F1F;--on-surface-variant: #5F6368;--background: #F8F9FA;--outline-variant: #DADCE0;--error: #D93025;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--primary: #A8C7FA;--on-primary: #062E6F;--primary-container: #0842A0;--on-primary-container: #D3E3FD;--tertiary: #FDD663;--tertiary-container: #594400;--on-tertiary-container: #FEEFC3;--surface: #1E1E1E;--surface-variant: #2D2D2D;--on-surface: #E3E3E3;--on-surface-variant: #9AA0A6;--background: #131314;--outline-variant: #3C4043;--error: #F28B82}}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--background);color:var(--on-surface);line-height:1.5}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 24px;border:none;border-radius:8px;font-size:.875rem;font-weight:600;font-family:inherit;cursor:pointer;transition:opacity .15s,background .15s;text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--filled{background:var(--primary);color:var(--on-primary)}.btn--filled:hover:not(:disabled){opacity:.92}.btn--tonal{background:var(--surface-variant);color:var(--on-surface)}.btn--tonal:hover:not(:disabled){background:var(--outline-variant)}.btn--outlined{background:transparent;border:1px solid var(--outline-variant);color:var(--primary)}.btn--outlined:hover{background:var(--surface-variant)}.spinner{width:24px;height:24px;border:3px solid var(--outline-variant);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.header{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:56px;background:var(--surface);border-bottom:1px solid var(--outline-variant);position:sticky;top:0;z-index:20}.header__title{font-size:1.25rem;font-weight:700;color:var(--on-surface);text-decoration:none}.header__actions{display:flex;align-items:center;gap:8px}.header__btn{padding:6px 12px;border:none;background:transparent;color:var(--on-surface-variant);font-size:.875rem;font-weight:500;cursor:pointer;border-radius:8px;font-family:inherit;transition:background .15s}.header__btn:hover{background:var(--surface-variant)}.article-card{background:var(--surface);border-radius:12px;overflow:hidden;cursor:pointer;transition:box-shadow .2s,transform .2s;margin-bottom:16px;box-shadow:0 1px 3px #00000014}.article-card:hover{box-shadow:0 4px 12px #0000001f;transform:translateY(-1px)}.article-card__image{aspect-ratio:16 / 9;overflow:hidden;background:var(--surface-variant)}.article-card__image img{width:100%;height:100%;object-fit:cover}.article-card__body{padding:16px}.article-card__meta{display:flex;align-items:center;gap:8px;margin-bottom:8px}.article-card__category{font-size:.75rem;font-weight:500;padding:2px 8px;border-radius:4px;background:var(--primary-container);color:var(--on-primary-container)}.article-card__premium{color:var(--tertiary);font-size:.875rem}.article-card__time{margin-left:auto;font-size:.75rem;color:var(--on-surface-variant)}.article-card__title{font-size:1rem;font-weight:700;line-height:1.4;margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;color:var(--on-surface)}.article-card__summary{font-size:.875rem;line-height:1.5;color:var(--on-surface-variant);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.article-card__source{font-size:.8125rem;font-weight:500;color:var(--primary)}.category-filter{border-bottom:1px solid var(--outline-variant);background:var(--background);position:sticky;top:56px;z-index:10}.category-filter__scroll{display:flex;gap:8px;padding:8px 16px;overflow-x:auto;scrollbar-width:none}.category-filter__scroll::-webkit-scrollbar{display:none}.category-chip{flex-shrink:0;padding:6px 16px;border-radius:8px;border:1px solid var(--outline-variant);background:transparent;color:var(--on-surface);font-size:.875rem;font-weight:500;cursor:pointer;transition:background .15s,color .15s,border-color .15s;font-family:inherit}.category-chip:hover{background:var(--surface-variant)}.category-chip--active{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.category-chip--active:hover{background:var(--primary);opacity:.92}.shimmer-card{background:var(--surface);border-radius:12px;overflow:hidden;margin-bottom:16px;box-shadow:0 1px 3px #00000014}.shimmer-card__image{aspect-ratio:16 / 9}.shimmer-card__body{padding:16px}.shimmer-card__meta{display:flex;gap:8px;margin-bottom:12px}.shimmer{background:linear-gradient(90deg,var(--surface-variant) 25%,var(--surface) 50%,var(--surface-variant) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:4px}.shimmer--tag{width:72px;height:20px}.shimmer--time{width:48px;height:20px;margin-left:auto}.shimmer--title{height:18px;margin-bottom:8px}.shimmer--short{width:60%}.shimmer--text{height:14px;margin-bottom:6px}.shimmer--medium{width:80%}.shimmer--source{width:100px;height:14px;margin-top:8px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.home__list{max-width:640px;margin:0 auto;padding:16px}.home__empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 16px;color:var(--on-surface-variant);gap:16px}.home__error{color:var(--error)}.home__loading{display:flex;justify-content:center;padding:24px}.detail{max-width:720px;margin:0 auto}.detail__hero{aspect-ratio:16 / 9;overflow:hidden;max-height:300px}.detail__hero img{width:100%;height:100%;object-fit:cover}.detail__content{padding:20px 16px 40px}.detail__back{background:none;border:none;color:var(--primary);font-size:.875rem;font-weight:500;cursor:pointer;padding:4px 0;margin-bottom:12px;font-family:inherit}.detail__badges{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.detail__chip{font-size:.75rem;font-weight:500;padding:4px 12px;border-radius:16px;background:var(--surface-variant);color:var(--on-surface-variant)}.detail__chip--premium{background:var(--tertiary-container);color:var(--on-tertiary-container)}.detail__title{font-size:1.5rem;font-weight:700;line-height:1.35;margin:0 0 12px;color:var(--on-surface)}.detail__meta{display:flex;justify-content:space-between;font-size:.8125rem;color:var(--on-surface-variant)}.detail__divider{border:none;border-top:1px solid var(--outline-variant);margin:16px 0}.detail__summary{font-size:1rem;font-weight:500;line-height:1.6;margin:0 0 20px;color:var(--on-surface)}.detail__body{font-size:.9375rem;line-height:1.8;color:var(--on-surface-variant);margin-bottom:24px}.detail__source-link{display:block;text-align:center}.detail__loading,.detail__error{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 16px;gap:16px;color:var(--on-surface-variant)}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}.auth-form{width:100%;max-width:400px;display:flex;flex-direction:column;align-items:center}.auth-form__icon{font-size:4rem;margin-bottom:8px}.auth-form__title{font-size:1.5rem;font-weight:700;margin:0 0 4px;color:var(--on-surface)}.auth-form__subtitle{font-size:1rem;color:var(--on-surface-variant);margin:0 0 32px}.auth-form__error{width:100%;text-align:center;color:var(--error);font-size:.875rem;margin:0 0 16px}.auth-form__submit{width:100%;height:48px;margin-top:8px;font-size:1rem}.auth-form__link{margin-top:16px;font-size:.875rem;color:var(--primary);text-decoration:none}.auth-form__link:hover{text-decoration:underline}.field{width:100%;display:flex;flex-direction:column;gap:4px;margin-bottom:16px}.field__label{font-size:.875rem;font-weight:500;color:var(--on-surface-variant)}.field__input{padding:12px;border:1px solid var(--outline-variant);border-radius:8px;background:var(--surface);color:var(--on-surface);font-size:1rem;font-family:inherit;outline:none;transition:border-color .15s}.field__input:focus{border-color:var(--primary)}.sub{max-width:720px;margin:0 auto;padding:16px}.sub__header{margin-bottom:24px}.sub__title{font-size:1.5rem;font-weight:700;margin:12px 0 0;color:var(--on-surface)}.sub__loading{display:flex;justify-content:center;padding:48px}.sub__grid{display:flex;flex-direction:column;gap:16px}.sub-card{background:var(--surface);border-radius:16px;padding:24px;box-shadow:0 1px 3px #00000014}.sub-card--featured{border:2px solid var(--primary);box-shadow:0 4px 12px #0000001f}.sub-card__badge{display:inline-block;font-size:.6875rem;font-weight:700;padding:4px 12px;border-radius:20px;background:var(--primary);color:var(--on-primary);margin-bottom:12px}.sub-card__name{font-size:1.25rem;font-weight:700;margin:0 0 8px;color:var(--on-surface)}.sub-card__price{margin-bottom:16px}.sub-card__amount{font-size:1.75rem;font-weight:700;color:var(--primary)}.sub-card__period{font-size:.875rem;color:var(--on-surface-variant)}.sub-card__features{list-style:none;padding:0;margin:0 0 20px}.sub-card__features li{padding:4px 0;font-size:.9375rem;color:var(--on-surface-variant)}.sub-card__features li:before{content:"  "}.sub-card__btn{width:100%}@media(min-width:640px){.sub__grid{flex-direction:row}.sub-card{flex:1}}