:root{--tg-theme-bg-color: var(--tg-theme-bg-color, #ffffff);--tg-theme-text-color: var(--tg-theme-text-color, #000000);--tg-theme-hint-color: var(--tg-theme-hint-color, #999999);--tg-theme-link-color: var(--tg-theme-link-color, #2481cc);--tg-theme-button-color: var(--tg-theme-button-color, #2481cc);--tg-theme-button-text-color: var(--tg-theme-button-text-color, #ffffff);--tg-theme-secondary-bg-color: var(--tg-theme-secondary-bg-color, #f0f0f0)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color);min-height:100vh;-webkit-font-smoothing:antialiased}.container{max-width:480px;margin:0 auto;padding:12px 16px}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 0;margin-bottom:4px}.header h1{font-size:22px;font-weight:700}.back-btn{background:none;border:none;color:var(--tg-theme-link-color);font-size:16px;cursor:pointer;padding:4px 8px}.section-title{font-size:13px;font-weight:700;text-transform:uppercase;color:var(--tg-theme-hint-color);letter-spacing:.8px;padding:20px 0 8px}.assignment-cards{display:flex;flex-direction:column;gap:10px}.assignment-card{background:var(--tg-theme-bg-color);border-radius:14px;padding:14px 16px;cursor:pointer;transition:transform .1s,box-shadow .15s;border-left:4px solid transparent}.assignment-card:active{transform:scale(.98)}.assignment-card.open{border-left-color:#34c759;box-shadow:0 1px 4px #34c7591f}.assignment-card.full{border-left-color:#ff9500;box-shadow:0 1px 4px #ff95001f}.assignment-card.closed{border-left-color:#8e8e93;opacity:.6}.ac-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.ac-title{font-size:16px;font-weight:600}.ac-bar-track{height:6px;border-radius:3px;background:var(--tg-theme-secondary-bg-color);overflow:hidden;margin-bottom:8px}.ac-bar-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,#34c759,#ff9500);transition:width .4s ease}.ac-bottom{display:flex;align-items:center;justify-content:space-between}.ac-slots-left{font-size:13px;font-weight:600;color:var(--tg-theme-hint-color)}.ac-arrow{font-size:18px;font-weight:700;color:var(--tg-theme-link-color)}.card-list{display:flex;flex-direction:column;gap:1px;background:var(--tg-theme-secondary-bg-color);border-radius:12px;overflow:hidden}.card-item{background:var(--tg-theme-bg-color);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:background .15s}.card-item:active{background:var(--tg-theme-secondary-bg-color)}.card-item .label{font-size:16px}.card-item .hint{font-size:14px;color:var(--tg-theme-hint-color)}.card-item .chevron{color:var(--tg-theme-hint-color);font-size:18px}.slot-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;padding:8px 0}.slot-cell{aspect-ratio:1;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:14px;font-weight:600;cursor:pointer;transition:transform .08s,box-shadow .15s;border:none;position:relative;overflow:hidden;padding:2px;-webkit-tap-highlight-color:transparent}.slot-cell:active{transform:scale(.92)}.slot-cell.available{background:#34c759;color:#fff;box-shadow:0 2px 6px #34c75959}.slot-cell.booked{background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-hint-color);cursor:default}.slot-cell.mine{background:var(--tg-theme-button-color);color:var(--tg-theme-button-text-color);box-shadow:0 2px 8px #007aff59}.slot-cell .slot-number{font-size:15px;font-weight:700;line-height:1}.slot-cell .slot-name{font-size:8px;font-weight:500;margin-top:1px;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;padding:0 1px;opacity:.85}.badge{display:inline-block;padding:3px 10px;border-radius:10px;font-size:12px;font-weight:700;letter-spacing:.3px}.badge.active{background:#34c75930;color:#34c759}.badge.inactive{background:#ff3b3030;color:#ff3b30}.form-group{margin-bottom:12px}.form-group label{display:block;font-size:13px;color:var(--tg-theme-hint-color);margin-bottom:4px;text-transform:uppercase;font-weight:600;letter-spacing:.3px}.form-input{width:100%;padding:12px 16px;border-radius:12px;border:none;background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color);font-size:16px;outline:none}.form-input:focus{box-shadow:0 0 0 2px var(--tg-theme-button-color)}.form-select{width:100%;padding:12px 16px;border-radius:12px;border:none;background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color);font-size:16px;outline:none;-moz-appearance:none;appearance:none;-webkit-appearance:none}.btn{width:100%;padding:14px;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:opacity .15s}.btn:active{opacity:.7}.btn-primary{background:var(--tg-theme-button-color);color:var(--tg-theme-button-text-color)}.btn-danger{background:#ff3b30;color:#fff}.btn-secondary{background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color)}.btn:disabled{opacity:.4;cursor:default}.btn-small{width:auto;padding:6px 14px;font-size:14px;border-radius:8px}.tab-bar{display:flex;gap:0;background:var(--tg-theme-secondary-bg-color);border-radius:10px;padding:2px;margin-bottom:12px}.tab-btn{flex:1;padding:8px;border:none;background:transparent;color:var(--tg-theme-hint-color);font-size:14px;font-weight:600;cursor:pointer;border-radius:8px;transition:all .2s}.tab-btn.active{background:var(--tg-theme-bg-color);color:var(--tg-theme-text-color);box-shadow:0 1px 3px #0000001a}.group-selector{display:flex;gap:8px;flex-wrap:wrap;padding:8px 0}.group-chip{padding:8px 16px;border-radius:20px;border:2px solid var(--tg-theme-secondary-bg-color);background:var(--tg-theme-bg-color);color:var(--tg-theme-text-color);font-size:14px;font-weight:600;cursor:pointer;transition:all .15s}.group-chip.selected{border-color:var(--tg-theme-button-color);background:var(--tg-theme-button-color);color:var(--tg-theme-button-text-color)}.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--tg-theme-hint-color);font-size:15px}.toast{position:fixed;bottom:80px;left:50%;transform:translate(-50%);padding:10px 20px;border-radius:10px;font-size:14px;font-weight:600;z-index:1000;animation:toast-in .3s ease;white-space:nowrap}.toast.error{background:#ff3b30;color:#fff}.toast.success{background:#34c759;color:#fff}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.admin-list-item{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--tg-theme-bg-color)}.admin-list-item .name{font-size:15px}.admin-list-item .sub{font-size:13px;color:var(--tg-theme-hint-color)}.admin-actions{display:flex;gap:6px}.icon-btn{width:32px;height:32px;border-radius:8px;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color)}.icon-btn.danger{background:#ff3b3020;color:#ff3b30}.empty-state{text-align:center;padding:32px 16px;color:var(--tg-theme-hint-color);font-size:15px}.inline-form{display:flex;gap:8px;padding:8px 0}.inline-form .form-input{flex:1}.slot-legend{display:flex;align-items:center;gap:16px;padding:12px 0;font-size:13px;color:var(--tg-theme-hint-color)}.slot-legend-item{display:flex;align-items:center;gap:4px}.slot-legend-dot{width:10px;height:10px;border-radius:3px}