:root{--bg: #F9F9F9;--card: #FFFFFF;--text-primary: #000000;--text-secondary: #878787;--grey: #878787;--grey-line: rgba(209,209,218,.7);--grey-light: rgba(136,136,136,.3);--blue: #4988F4;--red: #F73131;--orange: #FF7600;--aqua: #5AC8FA;--green: #5DD146;--purple: #A47AEB}@media(prefers-color-scheme:dark){:root{--bg: #121212;--card: #1E1E1E;--text-primary: #FFFFFF;--text-secondary: #B0B0B0;--grey: #B0B0B0;--grey-line: rgba(61,61,61,.7);--grey-light: rgba(153,153,153,.25)}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--safe-top: calc(var(--tg-viewport-safe-area-inset-top, 0px) + var(--tg-viewport-content-safe-area-inset-top, 0px));--safe-bottom: calc(var(--tg-viewport-safe-area-inset-bottom, 0px) + var(--tg-viewport-content-safe-area-inset-bottom, 0px));padding-bottom:var(--safe-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.screen{max-width:480px;margin:0 auto;padding-bottom:32px}.screen-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;padding:12px 16px;padding-top:calc(var(--safe-top, 0px) + 12px);color:var(--text-primary);background-color:var(--bg);--header-h: calc(50px + var(--safe-top, 0px));min-height:var(--header-h)}.header-btn{position:absolute;bottom:12px;background:none;border:none;color:var(--blue);cursor:pointer;padding:4px;display:flex;align-items:center}.header-btn--left{left:16px}.header-btn--right{right:16px}.week-section+.week-section{margin-top:12px}.week-header{position:sticky;top:calc(50px + var(--safe-top, 0px));z-index:10;display:flex;align-items:center;gap:6px;padding:8px 16px 6px;font-size:14px;font-weight:700;color:var(--grey);background-color:var(--bg);box-shadow:0 -10px 0 0 var(--bg)}.week-header__dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.day-title{font-size:14px;font-weight:700;color:var(--grey);padding:10px 16px 6px}.lessons-list{padding:0 16px}.lesson-card{display:flex;background:var(--card);padding:12px;gap:12px}.lesson-card--top{border-radius:10px 10px 0 0}.lesson-card--bottom{border-radius:0 0 10px 10px}.lesson-card--overcorner{border-radius:10px}.lesson-card--middle{border-radius:0}.lesson-card+.lesson-card{border-top:1px solid var(--grey-line)}.lesson-card__time{display:flex;flex-direction:column;align-items:center;justify-content:space-between;min-width:48px;flex-shrink:0;align-self:stretch}.lesson-card__time-start{font-size:16px;font-weight:700;color:var(--text-primary)}.lesson-card__time-number{font-size:16px;color:var(--grey)}.lesson-card__time-end{font-size:14px;color:var(--grey)}.lesson-card__divider{width:2px;background:var(--grey-line);border-radius:1px;flex-shrink:0;align-self:stretch}.lesson-card__content{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0}.lesson-card__type{font-size:13px;font-weight:600}.lesson-card__subject{font-size:16px;font-weight:700;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-card__badges{display:flex;gap:6px;flex-wrap:wrap}.lesson-card__badge{font-size:13px;color:var(--text-secondary);background:var(--grey-light);padding:2px 8px;border-radius:6px}.lesson-card__teacher{font-size:14px;color:var(--grey);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.empty-lesson{background:var(--card);border-radius:10px;padding:20px;display:flex;flex-direction:column;align-items:center;gap:4px}.empty-lesson__icon{font-size:28px;margin-bottom:4px}.empty-lesson__title{font-size:16px;font-weight:700;color:var(--text-primary)}.empty-lesson__subtitle{font-size:14px;color:var(--grey)}.popup-overlay{position:fixed;inset:0;z-index:100;background:#0006;display:flex;align-items:flex-end;justify-content:center;animation:fade-in .15s ease-out;touch-action:none}.popup-card{background:var(--card);border-radius:16px 16px 0 0;padding:12px 20px 32px;width:100%;max-width:480px;display:flex;flex-direction:column;gap:16px;animation:slide-up .2s ease-out;max-height:80vh;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}.popup-drag-handle{width:36px;height:4px;border-radius:2px;background:var(--grey-light);margin:0 auto 4px;flex-shrink:0}.popup-header{display:flex;justify-content:space-between;align-items:center}.popup-title{font-size:20px;font-weight:700;color:var(--text-primary)}.popup-close{background:none;border:none;font-size:20px;color:var(--grey);cursor:pointer;padding:4px;line-height:1}.popup-section{display:flex;flex-direction:column;gap:4px}.popup-label{font-size:13px;color:var(--grey)}.popup-value-large{font-size:16px;font-weight:600;color:var(--text-primary)}.popup-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}.popup-chip{font-size:14px;padding:4px 10px;border-radius:8px;background:var(--grey-light);color:var(--text-secondary)}.popup-chip--orange{background:#ff760026;color:var(--orange)}.popup-chip--blue{background:#4988f426;color:var(--blue)}.popup-chip--clickable{cursor:pointer;background:#4988f426;color:var(--blue)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.group-picker-fullscreen{position:fixed;inset:0;z-index:100;display:flex;flex-direction:column;align-items:center;padding:32px 24px 0;gap:16px;padding-top:calc(var(--tg-viewport-safe-area-inset-top, 0px) + var(--tg-viewport-content-safe-area-inset-top, 0px) + 32px);overflow:hidden;background-color:var(--bg)}.group-picker-title{font-size:24px;font-weight:700;color:var(--text-primary)}.group-picker-input{width:100%;max-width:320px;padding:12px 16px;border-radius:10px;border:none;background:var(--card);color:var(--text-primary);font-size:16px;outline:none}.group-picker-input::placeholder{color:var(--grey)}.group-picker-list{width:100%;max-width:320px;display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto;padding-bottom:32px;-webkit-mask-image:linear-gradient(to bottom,black calc(100% - 32px),transparent);mask-image:linear-gradient(to bottom,black calc(100% - 32px),transparent)}.group-picker-item{padding:12px 16px;border-radius:10px;border:none;background:var(--card);color:var(--text-primary);font-size:16px;font-weight:600;cursor:pointer;text-align:left}.group-picker-item:active{opacity:.7}.group-picker-empty{text-align:center;color:var(--grey);font-size:14px;padding:16px}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100dvh;gap:16px;color:var(--text-secondary);font-size:16px}.loading-spinner{width:32px;height:32px;border:3px solid var(--grey-line);border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.retry-btn{padding:10px 24px;border-radius:10px;border:none;background:var(--blue);color:#fff;font-size:16px;font-weight:600;cursor:pointer}.retry-btn:active{opacity:.8}