*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f6f7fb;color:#1f2430}.page-loading{padding:24px 16px;color:#667085;font-size:15px;font-weight:600}.student{padding:12px 0;border-bottom:1px solid #eee}.student:last-child{border-bottom:none}.week-page{max-width:1200px;margin:0 auto;padding:20px}.week-header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:20px;flex-wrap:wrap}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#6f7a8a;margin-bottom:6px}.page-title{margin:0;font-size:32px;line-height:1.1}.week-range{margin-top:8px;color:#667085;font-weight:600}.week-nav{display:flex;gap:8px;flex-wrap:wrap}.nav-btn{border:1px solid #d8deea;background:#fff;border-radius:12px;padding:10px 14px;cursor:pointer;font-weight:700}.nav-btn:hover{background:#f0f4ff}.week-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.day-card{width:100%;border:1px solid #dbe2f0;background:#fff;border-radius:20px;padding:16px;text-align:left;cursor:pointer;box-shadow:0 6px 18px #19233a0f;transition:transform .15s ease,box-shadow .15s ease}.day-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px #19233a1a}.day-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px}.day-label{font-size:22px;font-weight:800}.day-date{margin-top:4px;font-size:14px;color:#667085}.day-arrow{font-size:26px;color:#98a2b3;line-height:1}.day-summary-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}.summary-pill{display:inline-flex;align-items:center;border-radius:999px;background:#eef4ff;color:#2457c5;padding:6px 10px;font-size:13px;font-weight:700}.room-chip-group{display:flex;gap:8px;flex-wrap:wrap}.room-chip{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;border-radius:999px;background:#1f2430;color:#fff;font-weight:800;font-size:14px;padding:0 10px}.lesson-preview-list{display:grid;gap:10px;margin-bottom:14px}.lesson-preview-card{display:flex;justify-content:space-between;gap:12px;border-radius:14px;background:#f8faff;border:1px solid #e8edf6;padding:12px}.lesson-preview-card-cancelled{background:#fff3f3;border-color:#f1c7c7;opacity:.9}.lesson-preview-main{min-width:0;flex:1}.lesson-preview-name-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:4px}.lesson-preview-name{font-weight:800}.cancel-badge{display:inline-flex;align-items:center;border-radius:999px;background:#d92d20;color:#fff;padding:3px 8px;font-size:11px;font-weight:700}.lesson-preview-time{font-size:13px;color:#667085}.lesson-preview-teacher{margin-top:4px;font-size:13px;color:#344054;font-weight:600}.lesson-preview-room{flex-shrink:0;width:32px;height:32px;border-radius:999px;display:grid;place-items:center;background:#dbe7ff;color:#244aa5;font-weight:800}.student-preview{font-size:14px;color:#475467;line-height:1.4}.student-preview-label{font-weight:700;margin-right:6px}.student-preview-names{color:#344054}.student-preview-empty{color:#98a2b3}.empty-day-box{border-radius:14px;border:1px dashed #d0d5dd;padding:14px;text-align:center;color:#98a2b3;background:#fcfcfd}@media(max-width:900px){.week-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.week-page{padding:14px}.page-title{font-size:26px}.week-grid{grid-template-columns:1fr}.day-card{padding:14px}}.line-login-button{width:151px;height:44px;border:none;padding:0;margin:0;background-color:transparent;background-repeat:no-repeat;background-size:151px 44px;background-image:url(/line-login/1x/44dp/btn_login_base.png);cursor:pointer;flex-shrink:0}.line-login-button:hover:not(:disabled){background-image:url(/line-login/1x/44dp/btn_login_hover.png)}.line-login-button:active:not(:disabled){background-image:url(/line-login/1x/44dp/btn_login_press.png)}.line-login-button:disabled{cursor:not-allowed;opacity:.55}@media(-webkit-min-device-pixel-ratio:2),(min-resolution:192dpi){.line-login-button{background-size:151px 44px;background-image:url(/line-login/2x/44dp/btn_login_base.png)}.line-login-button:hover:not(:disabled){background-image:url(/line-login/2x/44dp/btn_login_hover.png)}.line-login-button:active:not(:disabled){background-image:url(/line-login/2x/44dp/btn_login_press.png)}}.portal-signin-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:stretch}.portal-signin-actions>.line-login-button{flex:0 0 auto}@media(min-width:560px){.portal-signin-actions{flex-wrap:nowrap;align-items:center;justify-content:space-between}}.portal-page{display:grid;gap:16px}.portal-child-tabs{display:flex;gap:8px;flex-wrap:wrap}.portal-tab{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:8px 14px;border-radius:999;font-size:14px;font-weight:700;border:1px solid #d0d5dd;background:#fff;color:#344054;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.portal-tab--active{border-color:#16a34a;background:#ecfdf3;color:#15803d}.portal-alert{border-radius:18px;padding:14px 16px;font-weight:700;font-size:14px;line-height:1.5}.portal-alert--success{background:#ecfdf3;border:1px solid #86efac;color:#15803d}.portal-alert--error{background:#fef2f2;border:1px solid #f4c7c7;color:#b42318}.portal-lesson-card{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:12px;border-radius:14px;background:#f8faff;border:1px solid #e8edf6}.portal-lesson-card--cancelled{background:#fafafa;border-color:#e5e7eb}.portal-lesson-card__title{color:#101828;font-weight:700;font-size:14px;line-height:1.4}.portal-lesson-card--cancelled .portal-lesson-card__title{color:#667085;text-decoration:line-through}.portal-lesson-card__meta{color:#667085;font-size:13px;margin-top:2px}.portal-lesson-card__actions{display:flex;gap:8px;flex-shrink:0}.portal-segmented{display:flex;gap:8px;flex-wrap:wrap}.portal-selectable-card{text-align:left;width:100%;padding:12px 14px;border-radius:14px;border:1px solid #dbe3ee;background:#fff;cursor:pointer;transition:border-color .15s ease,background .15s ease}.portal-selectable-card:hover{background:#f0fdf4}.portal-selectable-card--selected{border:2px solid #16a34a;background:#ecfdf3}.portal-selectable-card--available{background:#ecfdf3;border-color:#86efac}.portal-selectable-card--available:hover{background:#dcfce7}.portal-calendar-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.portal-calendar-month{font-weight:800;color:#101828;font-size:16px}.portal-calendar-weekdays,.portal-calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.portal-calendar-weekday{text-align:center;font-size:12px;color:#667085;font-weight:700}.portal-cal-day{min-height:52px;border-radius:12px;border:1px solid #dbe3ee;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:4px;font-weight:800;font-size:14px}.portal-cal-day--unavailable{background:#f9fafb;color:#98a2b3;cursor:default}.portal-cal-day--available{background:#ecfdf3;color:#15803d;cursor:pointer}.portal-cal-day--available:hover{background:#dcfce7}.portal-cal-day--selected{border:2px solid #16a34a;box-shadow:0 0 0 1px #16a34a}.portal-cal-day__count{font-size:11px;font-weight:700}.portal-modal-overlay{position:fixed;inset:0;background:#00000059;display:flex;align-items:center;justify-content:center;padding:16px;z-index:1000}.portal-modal-card{width:100%;max-width:420px;background:#fff;border-radius:18px;padding:18px 16px;border:1px solid #dbe3ee;box-shadow:0 10px 30px #1018282e}.portal-modal-title{font-weight:800;font-size:18px;margin-bottom:12px;color:#101828}.portal-modal-body{color:#344054;line-height:1.6;margin-bottom:14px;font-size:14px}.portal-modal-actions{display:flex;gap:8px;flex-wrap:wrap}@media(max-width:640px){.portal-cal-day{min-height:44px;font-size:13px}.portal-lesson-card__actions{width:100%;justify-content:flex-end}}