@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Noto+Sans+JP:wght@400;500;600;700;800;900&display=swap";:root{--bg-dark:#0f172a;--bg-sidebar:#1e293b;--bg-main:#f1f5f9;--bg-card:#fff;--bg-hover:#f8fafc;--bg-active:#6366f11f;--primary:#6366f1;--primary-light:#818cf8;--primary-dark:#4f46e5;--primary-glow:#6366f140;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--danger-light:#fef2f2;--danger-hover:#dc2626;--text-white:#f8fafc;--text-muted:#94a3b8;--text-dark:#1e293b;--text-sub:#64748b;--border:#e2e8f0;--border-light:#f1f5f9;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000a;--shadow-xl:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000000a;--sidebar-width:260px;--radius:12px;--radius-sm:8px;--radius-xs:6px;--transition:.2s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{background:var(--bg-main);color:var(--text-dark);font-family:Inter,Noto Sans JP,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6;overflow-x:hidden}.login-screen{background:linear-gradient(90deg,#065f46fa 0 36%,#eef4f200 36%),linear-gradient(135deg,#f8fbfa 0%,#eef4f2 52%,#e6f0ed 100%);place-items:center;min-height:100vh;padding:32px;display:grid}.login-shell{background:var(--bg-card);border:1px solid #064e3b24;border-radius:18px;grid-template-columns:minmax(280px,.92fr) minmax(360px,1fr);width:min(960px,100%);min-height:560px;animation:.45s ease-out fadeUp;display:grid;overflow:hidden;box-shadow:0 24px 60px #0f172a29}.login-brand-panel{color:#f8fafc;background:linear-gradient(#065f46fa 0%,#047a43fa 56%,#064e3bfa 100%);flex-direction:column;justify-content:space-between;padding:42px 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100%);border-radius:14px;width:210px;max-width:100%;height:auto;margin-bottom:30px;padding:18px 22px}.login-title{color:#082f49;letter-spacing:0;margin-bottom:10px;font-size:1.72rem;font-weight:800}.login-subtitle{color:var(--text-sub);margin-bottom:34px;font-size:.92rem;line-height:1.8}.login-shell .login-subtitle{white-space:nowrap}.login-form{gap:14px;width:100%;max-width:320px;margin-bottom:14px;display:grid}.form-field{text-align:left;color:var(--text-sub);gap:6px;font-size:.78rem;font-weight:700;display:grid}.btn-primary.btn-login{background:linear-gradient(135deg,#047857,#16a34a);justify-content:center;width:100%;max-width:320px;min-height:52px;box-shadow:0 12px 24px #04785738}.btn-secondary.btn-login{justify-content:center;width:100%;max-width:320px;margin-top:12px}.btn-primary.btn-login:hover{box-shadow:0 16px 32px #04785747}.btn-login svg{width:18px;height:18px}.dashboard-layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);color:#f8fafc;z-index:100;--sidebar-text:#fff;--sidebar-muted:#ffffffc2;--sidebar-subtle:#ffffff1a;--sidebar-subtle-strong:#ffffff29;--sidebar-active-bg:#d1fae5;--sidebar-active-text:#064e3b;background:linear-gradient(#065f46fa 0%,#047a43fa 52%,#064e3bfa 100%);border-right:1px solid #d1fae52e;flex-direction:column;height:100dvh;max-height:100dvh;display:flex;position:fixed;top:0;bottom:0;left:0;overflow:hidden;box-shadow:8px 0 28px #064e3b29}.sidebar-brand{border-bottom:1px solid #d1fae52e;flex-shrink:0;justify-content:center;align-items:center;min-height:92px;padding:22px 20px 18px;display:flex}.sidebar-logo-img{object-fit:contain;width:190px;max-width:100%;height:auto;display:block;transform:translate(-8px)}.sidebar-nav{scrollbar-width:thin;scrollbar-color:#ffffff47 transparent;flex-direction:column;flex:1;gap:8px;min-height:0;padding:14px 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12px;font-size:.9rem;font-weight:800;display:flex}.nav-group-trigger:hover,.nav-item:hover{background:var(--sidebar-subtle);color:var(--sidebar-text)}.nav-group-trigger.active{background:var(--sidebar-subtle-strong);color:var(--sidebar-text)}.nav-item.active{background:var(--sidebar-active-bg);color:var(--sidebar-active-text);font-weight:800}.nav-item.active:before{content:"";background:#22c55e;border-radius:0 3px 3px 0;width:3px;position:absolute;top:8px;bottom:8px;left:0}.nav-item.disabled{opacity:.64;pointer-events:none;cursor:default}.nav-icon{flex-shrink:0;width:20px;height:20px}.nav-label{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.nav-badge{color:var(--sidebar-text);white-space:nowrap;background:#d1fae52e;border-radius:999px;justify-content:center;align-items:center;padding:2px 8px;font-size:.65rem;display:flex}.nav-chevron{width:16px;height:16px;transition:transform 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var(--border);border-radius:var(--radius-sm);background:var(--bg-card);box-shadow:var(--shadow-lg);grid-template-columns:repeat(3,38px);gap:8px;padding:10px;display:grid;position:absolute;bottom:calc(100% + 10px);left:0}.avatar-option{border-radius:var(--radius-xs);background:var(--bg-hover);cursor:pointer;width:38px;height:38px;transition:all var(--transition);border:1px solid #0000;font-size:1.15rem}.avatar-option:hover,.avatar-option.active{background:#dcfce7;border-color:#16a34a}.sidebar-user-details{gap:6px;min-width:0;display:grid}.sidebar-user-name{color:var(--sidebar-text);white-space:nowrap;text-overflow:ellipsis;font-size:.84rem;font-weight:800;line-height:1.2;overflow:hidden}.sidebar-role-tag{background:var(--sidebar-active-bg);width:fit-content;color:var(--sidebar-active-text);border-radius:999px;padding:3px 8px;font-size:.68rem;font-weight:800}.btn-logout{border-radius:var(--radius-xs);width:100%;min-height:36px;color:var(--sidebar-muted);cursor:pointer;transition:all var(--transition);background:#ffffff14;border:1px solid #ffffff2e;justify-content:center;align-items:center;gap:8px;padding:8px 10px;font-size:.8rem;font-weight:700;display:inline-flex}.btn-logout:hover{color:#fca5a5;background:#ef44441a;border-color:#ef444433}.logout-icon{flex-shrink:0;width:16px;height:16px}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;padding:32px}.page-content{max-width:1200px;margin:0 auto;animation:.3s ease-out fadeUp}.page-header{justify-content:space-between;align-items:flex-start;margin-bottom:28px;display:flex}.page-title{color:var(--text-dark);margin-bottom:4px;font-size:1.5rem;font-weight:800}.page-subtitle{color:var(--text-sub);font-size:.85rem}.toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.toolbar-left{flex:1;gap:12px;display:flex}.toolbar-right{align-items:center;gap:12px;display:flex}.toolbar-select{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text-dark);cursor:pointer;transition:border-color var(--transition);outline:none;padding:10px 16px;font-size:.85rem}.toolbar-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.toolbar-search{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);max-width:320px;color:var(--text-dark);transition:border-color var(--transition);outline:none;flex:1;padding:10px 16px;font-size:.85rem}.toolbar-search:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.toolbar-search::placeholder{color:var(--text-muted)}.student-count{color:var(--text-sub);background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:6px 14px;font-size:.85rem;font-weight:600}.table-container{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}.data-table{border-collapse:collapse;width:100%;font-size:.88rem}.data-table thead{border-bottom:2px solid var(--border);background:#f8fafc}.data-table th{text-align:left;color:var(--text-sub);text-transform:uppercase;letter-spacing:.05em;padding:14px 20px;font-size:.75rem;font-weight:700}.data-table td{border-bottom:1px solid var(--border-light);vertical-align:middle;padding:14px 20px}.data-table tbody tr{transition:background var(--transition)}.data-table tbody tr:hover{background:var(--bg-hover)}.data-table tbody tr.clickable-row{cursor:pointer}.data-table tbody tr.clickable-row:focus-visible{outline:3px solid var(--primary-glow);outline-offset:-3px}.data-table tbody tr:last-child 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24px;font-size:.88rem;font-weight:600;display:inline-flex}.btn-secondary:hover{background:var(--bg-hover);border-color:#cbd5e1}.btn-danger{background:var(--danger);color:#fff;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);border:none;align-items:center;gap:8px;padding:12px 24px;font-size:.88rem;font-weight:700;display:inline-flex}.btn-danger:hover{background:var(--danger-hover)}.btn-danger:disabled{opacity:.5;cursor:not-allowed}.btn-icon{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);cursor:pointer;width:40px;height:40px;transition:all var(--transition);justify-content:center;align-items:center;font-size:1rem;display:flex}.btn-icon:hover{background:var(--bg-hover);border-color:#cbd5e1}.btn-icon-sm{border-radius:var(--radius-xs);cursor:pointer;width:34px;height:34px;transition:all var(--transition);background:0 0;border:1px solid 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h3{font-size:1.1rem;font-weight:700}.modal-close-btn{background:var(--bg-main);width:32px;height:32px;color:var(--text-sub);cursor:pointer;transition:all var(--transition);border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1rem;display:flex}.modal-close-btn:hover{background:var(--danger-light);color:var(--danger)}.form-group{margin-bottom:18px}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.form-label{color:var(--text-sub);margin-bottom:6px;font-size:.82rem;font-weight:600;display:block}.required{color:var(--danger);margin-left:4px;font-size:.7rem}.form-input,.form-select{border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-dark);background:var(--bg-card);transition:border-color var(--transition);outline:none;padding:10px 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var(--border-light);border-radius:var(--radius-sm);background:var(--bg-hover);justify-content:space-between;gap:12px;margin-bottom:10px;padding:12px;display:flex}.row-selected{background:var(--bg-active)!important}.compact-row{grid-template-columns:1fr auto}.student-checkbox-list{border:1px solid var(--border);border-radius:var(--radius-sm);grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:8px;max-height:180px;padding:10px;display:grid;overflow:auto}.notice-card{color:var(--text-sub);background:#fff7ed;border-color:#fed7aa;margin-bottom:20px;padding:14px 18px}.public-links{justify-content:center;gap:16px;margin-top:20px;display:flex}.public-links a{color:var(--primary-light);font-size:.85rem}.public-page,.parent-page{background:var(--bg-main);min-height:100vh;padding:32px 20px}.public-form{max-width:860px;margin:0 auto;padding:32px}.public-card,.parent-login-card{text-align:center;max-width:560px;margin:8vh auto 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#114a970f}.member-site-brand{color:#0959bb;align-items:center;gap:11px;display:flex}.member-site-brand div{gap:2px;display:grid}.member-site-brand strong{font-size:1.25rem}.member-site-brand span:not(.member-site-brand-mark){color:#65728a;font-size:.72rem;font-weight:700}.member-site-menu{position:relative}.member-site-menu-button{color:#52627b;cursor:pointer;background:0 0;border:1px solid #d6e0ef;border-radius:9px;justify-content:center;align-items:center;min-width:42px;min-height:42px;display:inline-flex}.member-site-menu-backdrop{cursor:default;z-index:30;background:#0f1c346b;border:0;padding:0;position:fixed;inset:0}.member-site-menu-drawer{z-index:31;background:#fff;flex-direction:column;width:min(88vw,380px);max-width:380px;height:100dvh;padding:24px 18px 18px;display:flex;position:fixed;top:0;right:0;box-shadow:-12px 0 36px #13315e33}.member-site-menu-drawer-header{border-bottom:1px solid #e1e9f4;justify-content:space-between;align-items:center;padding:0 4px 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100%);align-items:stretch;padding:18px}.login-shell{grid-template-columns:1fr;min-height:auto}.login-brand-panel{min-height:180px;padding:28px 24px}.login-brand-logo{width:200px}.login-brand-copy{max-width:none;padding-top:18px}.login-brand-copy p{font-size:.92rem}.login-card{padding:38px 24px}.login-card-standalone{margin:auto 0}.login-title{font-size:1.38rem}.login-shell .login-subtitle{white-space:normal}.sidebar{width:64px;overflow:hidden}.nav-label,.nav-badge,.nav-chevron,.sidebar-user-details,.sidebar-logout{display:none}.sidebar-brand{justify-content:center;min-height:70px;padding:14px 8px}.sidebar-logo-img{object-fit:cover;object-position:left center;width:42px;height:42px;transform:none}.sidebar-nav{gap:6px;padding:10px 8px}.nav-item,.nav-group-trigger{justify-content:center;min-height:42px;padding:10px}.nav-group-children{border-left:0;margin-left:0;padding-left:0}.nav-item.active:before{display:none}.sidebar-user-section{justify-content:center;padding:12px 8px;display:flex}.sidebar-user-row{margin-bottom:0}.sidebar-user-avatar{width:42px;height:42px}.avatar-popover{grid-template-columns:repeat(2,38px);left:50%;transform:translate(-50%)}.main-content{margin-left:64px;padding:20px}.page-header{flex-direction:column;gap:16px}.toolbar-left{flex-direction:column}.toolbar-search{max-width:100%}.form-row{grid-template-columns:1fr}.data-table{font-size:.82rem}.data-table th,.data-table td{padding:10px 12px}.split-grid,.parent-grid,.calendar-publication-period-layout,.url-management-grid{grid-template-columns:1fr}.detail-panel{position:static}.lesson-record-detail-panel{max-height:none;overflow-y:visible}.public-form{padding:22px}.parent-header,.enrollment-account-card,.withdrawal-account-card,.verification-banner{flex-direction:column;align-items:flex-start}.compact-actions,.compact-actions .btn-secondary,.sticky-form-actions .btn-primary{width:100%}.member-site-header{min-height:66px;padding:9px 16px}.member-site-brand strong{font-size:1.05rem}.member-site-content{gap:14px;padding:17px 14px 0}.member-card{border-radius:12px;padding:17px}.member-card-title{gap:9px;margin-bottom:14px}.member-card-title h1,.member-card-title h2{font-size:1.17rem}.member-card-icon{width:38px;height:38px}.next-lesson-card .next-lesson-title{padding:14px 17px}.next-lesson-body{grid-template-columns:1fr;gap:14px;padding:15px}.next-lesson-date{min-height:132px}.next-lesson-date strong{font-size:3rem}.next-lesson-detail div,.member-information-list div{grid-template-columns:118px minmax(0,1fr);gap:8px}.next-lesson-detail dt,.member-information-list dt{gap:7px}.member-student-item{grid-template-columns:43px minmax(0,1fr);align-items:start;padding:12px}.member-student-number{width:39px;height:39px;font-size:1.08rem}.member-student-next{border-top:1px dashed #ccd9e8;border-left:0;grid-column:2;margin-top:2px;padding:9px 0 0}}