:root{--ink:#253630;--muted:#7a8580;--green:#176d56;--green-dark:#10513f;--soft:#edf6f1;--line:#e4eae6;--bg:#f7f9f7;--white:#fff;--radius:16px;--shadow:0 4px 22px #223c2c04}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;font-size:14px;line-height:1.7}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,.table-scroll:focus-visible{outline:3px solid #7cbaa5;outline-offset:3px}h1,h2,p{margin:0}h1{font-size:29px;letter-spacing:-.025em;font-weight:700;line-height:1.5}h2{font-size:17px;line-height:1.5;letter-spacing:.01em}p+p{margin-top:10px}small,.small{font-size:12px}.muted{color:var(--muted)}.subtle{color:var(--muted);font-size:12px}.eyebrow{font-size:10px!important;font-weight:700;letter-spacing:.2em;color:var(--green);margin-bottom:9px!important}.topbar{background:var(--white);border-bottom:1px solid var(--line)}.top-inner{max-width:1240px;margin:auto;padding:21px 32px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:700;font-size:17px;line-height:1.5}.brand:hover{text-decoration:none}.brand small{display:block;color:#9aa29d;letter-spacing:.17em;font-size:8px;margin-top:1px;font-weight:600}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--green);color:white;font-size:24px;font-weight:500}.account{display:flex;align-items:center;gap:24px}.account-label{font-size:12px;color:var(--muted)}.text-button{border:0;background:none;color:var(--green);font-size:12px;padding:8px 4px}.nav{background:white;border-bottom:1px solid var(--line)}.nav-inner{max-width:1240px;padding:0 32px;display:flex;gap:30px;margin:auto;align-items:center}.nav a{font-size:13px;white-space:nowrap;display:block;padding:16px 0;border-bottom:2px solid transparent;color:var(--muted)}.nav a:hover{text-decoration:none;color:var(--green)}.nav a[aria-current]{color:var(--green);border-color:var(--green);font-weight:700}.nav-note{margin-left:auto;font-size:9px;letter-spacing:.15em;color:#a7afa9}.shell{max-width:1240px;margin:auto;padding:38px 32px 60px;min-height:calc(100vh - 214px)}.intro{display:flex;justify-content:space-between;align-items:center;margin:0 0 29px}.intro .muted{font-size:13px;margin-top:9px}.panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:24px}.panel h2+p{margin-top:8px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:26px}.stat{padding:22px 25px;background:white;border:1px solid var(--line);border-radius:var(--radius)}.stat>span{font-size:12px;color:var(--muted)}.stat strong{display:block;font-size:33px;font-weight:600;line-height:1.6;letter-spacing:-.03em}.stat strong small{font-size:12px;font-weight:400;margin-left:8px;color:var(--muted)}.stat p{font-size:11px;color:var(--muted)}.stat.accent{background:var(--soft);border-color:#dcece1}.stat.accent strong,.stat.accent>span{color:var(--green)}.table-panel{padding:0;overflow:hidden}.table-toolbar{display:flex;justify-content:space-between;align-items:center;padding:22px 25px;gap:18px}.table-toolbar p{margin-top:5px}.toolbar-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.filter-line{padding:0 25px 18px;display:flex;align-items:center;justify-content:space-between;gap:20px}.search-form{display:flex;gap:8px;align-items:center}.search-form input{max-width:250px;font-size:12px;padding:8px 12px;min-height:37px}.search-form .button{min-height:37px;padding:7px 14px;font-size:12px}.table-scroll{overflow:auto;max-width:100%;overscroll-behavior-x:contain}table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px;text-align:left}th,td{border-bottom:1px solid var(--line);padding:14px 20px;vertical-align:middle}thead th{background:#f8faf8;color:var(--muted);font-size:11px;font-weight:500;border-top:1px solid var(--line)}tbody th{font-weight:400}tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}tbody tr:hover td,tbody tr:hover th{background:#fafcfb}.matrix{width:max-content;min-width:100%;font-variant-numeric:tabular-nums}.matrix th:not(.student-col),.matrix td{text-align:center;min-width:124px;border-right:1px solid #edf0ed}.matrix thead th{padding:16px 14px}.matrix td{height:64px}.matrix .student-col{min-width:230px;width:230px;padding-left:25px;text-align:left;border-right:1px solid var(--line)}.matrix .student-col .th-note{display:block;font-size:10px;margin-top:6px;color:#9aa49c}.sticky{position:sticky;left:0;z-index:1;background:white}.matrix thead .sticky{z-index:2;background:#f8faf8}.student-number{display:block;color:#8b9690;font-size:11px;font-weight:400;letter-spacing:.04em}.student-name{display:block;font-size:13px;font-weight:500;color:var(--ink);margin-top:2px}.th-year{display:block;font-size:9px;color:#a4ada7;letter-spacing:.04em}.th-date{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-top:2px}.th-label{display:block;font-size:10px;max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-height:17px;color:#8b9690}.th-count{display:block;color:var(--green);font-size:21px;font-weight:600;line-height:1.6;margin:5px 0 10px}.th-count small{font-size:10px;font-weight:400;color:var(--muted)}.switch{display:inline-flex;gap:6px;align-items:center;font-size:10px;padding:5px 8px;background:#eef0ee;border:1px solid #e4e8e4;border-radius:6px;color:#939b95;white-space:nowrap;min-height:33px}.switch>span{position:relative;width:22px;height:13px;background:#cbd2cc;border-radius:8px}.switch>span:after{content:"";position:absolute;left:2px;top:2px;width:9px;height:9px;background:white;border-radius:50%}.switch.on{background:#edf6f0;color:var(--green);border-color:#cee7d8}.switch.on>span{background:var(--green)}.switch.on>span:after{left:11px}.matrix-check{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:6px;border:1px solid #e7ece8;color:#bcc5bf;font-size:12px}.matrix-check.yes{background:var(--green);border-color:var(--green);color:white;font-size:15px;font-weight:600}.matrix .open-col{background:#f6fbf7}.matrix .sum-col{min-width:110px}.sum{font-size:16px;font-weight:600}.sum span{font-size:10px;color:var(--muted);font-weight:400}.inactive .student-name,.inactive .matrix-check{opacity:.55}.table-footer{padding:16px 25px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:10px;gap:15px}.legend-gap{margin-left:18px}.pagination{display:flex;gap:16px;align-items:center;white-space:nowrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;background:var(--green);border:1px solid var(--green);color:white;border-radius:8px;padding:10px 18px;font-weight:500;font-size:13px;min-height:43px;transition:background .15s;line-height:1.5;text-decoration:none;white-space:nowrap}.button:hover{background:var(--green-dark);text-decoration:none}.button.secondary{background:white;border-color:var(--line);color:var(--ink)}.button.secondary:hover{background:#f3f7f4;border-color:#cdd9d0}.button.danger{background:white;border-color:#ead9d7;color:#a34e48}.button.danger:hover{background:#fff4f2}.button.small-button{font-size:11px;min-height:37px;padding:7px 12px}.inline{display:inline-block;margin:0}.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.stack{display:flex;flex-direction:column;gap:17px;margin-top:22px}.stack .button{align-self:flex-start}label{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:500}label small{font-size:10px;color:var(--muted);font-weight:400}input,select{border:1px solid #dfe6df;border-radius:7px;padding:10px 12px;background:white;color:var(--ink);width:100%;min-height:43px;line-height:1.5;min-width:0}input::placeholder{color:#a6afa8;font-size:12px}input[type=file]{font-size:12px;background:#fafcf9;padding:11px}input[type=file]::file-selector-button{background:white;border:1px solid var(--line);border-radius:4px;padding:6px 10px;margin-right:10px;color:var(--ink)}.form-columns{display:grid;grid-template-columns:1fr 1fr;gap:15px}.row-form{display:flex;gap:10px}.steps{list-style:none;padding:0;counter-reset:step;margin:24px 0 0}.steps li{position:relative;padding:0 0 23px 45px;counter-increment:step}.steps li:before{content:"0" counter(step);position:absolute;left:0;top:0;width:30px;height:30px;background:var(--soft);border-radius:50%;display:grid;place-items:center;color:var(--green);font-size:10px;font-weight:600}.steps strong{display:block;font-size:13px;font-weight:600}.steps span{font-size:11px;color:var(--muted)}.steps li:last-child{padding-bottom:0}.cleanup{margin-top:0;padding:18px 25px;box-shadow:none}summary{cursor:pointer;font-size:12px;color:var(--muted)}details[open] summary{margin-bottom:18px}.cleanup .row-form{margin-top:15px}.cleanup select{max-width:400px}.notice{border:1px solid #d8e5dc;background:#f2f7f0;color:#4e6655;padding:15px 18px;border-radius:10px;font-size:12px;margin-bottom:24px;overflow-wrap:anywhere}.notice.success{border-left:3px solid var(--green)}.notice.error{border-color:#f0d0ca;background:#fff5f2;color:#a24a3d}.badge{font-size:10px;font-weight:500;padding:4px 8px;border-radius:5px;display:inline-block;white-space:nowrap;line-height:1.5}.badge.green{background:#e9f5ec;color:var(--green)}.badge.gray{background:#f0f2f0;color:#969e98}.count-pill{font-size:11px;font-weight:400;border-radius:10px;background:#f0f4f0;color:var(--muted);padding:3px 8px;margin-left:7px}.csv-example{font-size:11px;background:#f7f9f7;border:1px solid var(--line);padding:14px 16px;line-height:1.9;border-radius:8px;overflow:auto;color:#64766b}.credential-panel{border-color:#b8d9c4;background:#fbfefb}.credential-panel table{margin:15px 0}.credential-panel code{font-size:15px;font-weight:600;letter-spacing:.15em}.students-table th{min-width:180px}.students-table td{min-width:180px}.students-table td:last-child{min-width:310px}.pin-form{display:flex;gap:8px}.pin-form input{max-width:180px;min-height:37px;padding:7px 10px;font-size:12px}.student-summary{display:grid;grid-template-columns:repeat(3,1fr);padding:24px 28px}.student-summary>div{border-right:1px solid var(--line);padding:0 25px}.student-summary>div:first-child{padding-left:0}.student-summary>div:last-child{border:0}.student-summary strong{display:block;font-size:25px;font-weight:600;margin-top:4px}.student-summary .denom{font-size:12px;font-weight:400;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:25px 0 17px;gap:12px}.credential-panel .section-heading{margin-top:0}.day-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.day-card{background:white;padding:24px;border:1px solid var(--line);border-radius:var(--radius)}.day-card.open{border-color:#b9d8c4;box-shadow:0 2px 10px #1c6d4910}.day-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.day-card h2{font-size:24px;font-weight:600;letter-spacing:-.025em}.day-label{margin:5px 0 20px!important;font-size:12px;min-height:20px}.attendance-button{display:flex;align-items:center;gap:12px;justify-content:center;width:100%;padding:15px 10px;border:1px solid #dce5de;background:white;border-radius:9px;font-size:13px;color:#67786e;min-height:58px}.attendance-button:hover{background:#f4faf5}.check-square{width:23px;height:23px;display:grid;place-items:center;border:1.5px solid #c5d3c8;border-radius:6px;background:white;color:white;font-size:16px;font-weight:600}.attendance-button.checked{background:var(--soft);border-color:#b9d7c4;color:var(--green)}.checked .check-square{background:var(--green);border-color:var(--green)}.attendance-button.locked{opacity:.72;background:#f8f9f8}.locked:not(.checked) .check-square{color:#b4c0b7}.card-hint{text-align:center;font-size:10px;margin-top:10px!important}.history-mini{margin-top:25px}.history-mini .section-heading{margin:0 0 15px}.activity-list{margin:0;padding:0;list-style:none}.activity-list li{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line);font-size:12px}.activity-list li:last-child{border:0}.activity-list time{font-size:11px;color:var(--muted);white-space:nowrap}.activity-dot{display:inline-block;width:6px;height:6px;background:var(--green);border-radius:50%;margin-right:10px}.activity-dot.off{background:#b5bfb7}.empty{padding:50px 25px;text-align:center}.empty h2{font-size:16px}.empty p{font-size:12px;margin:10px 0 18px}.empty.compact{background:#fafcf9;border-top:1px solid var(--line);padding:28px 20px}.system-list{margin:23px 0;display:block}.system-list>div{display:flex;justify-content:space-between;align-items:center;gap:14px;border-bottom:1px solid var(--line);padding:13px 0;font-size:12px}.system-list dt{color:var(--muted)}.system-list dd{margin:0}.auth-shell{max-width:530px;padding-top:64px;min-height:calc(100vh - 169px)}.auth-card{background:white;padding:38px;border:1px solid var(--line);border-radius:20px;box-shadow:0 12px 40px #1d4e2b05}.auth-symbol{width:45px;height:45px;border:1px solid #d7e9dc;background:var(--soft);border-radius:13px;display:grid;place-items:center;font-size:24px;color:var(--green);margin-bottom:26px}.auth-card h1{font-size:25px;margin-bottom:10px}.auth-card .muted{font-size:12px}.auth-card .stack{margin-top:28px;gap:20px}.auth-card .button{width:100%;margin-top:6px;justify-content:space-between;padding:12px 18px}.auth-card label input{min-height:46px}.auth-foot{text-align:center;margin-top:25px;border-top:1px solid var(--line);padding-top:20px;font-size:11px}.auth-caption{font-size:9px;letter-spacing:.18em;color:#a0aba3;text-align:center;margin-top:25px}.footer{max-width:1240px;padding:23px 32px;margin:auto;display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:9px;color:#9ba79f;letter-spacing:.1em}.nowrap{white-space:nowrap}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1500px){.shell,.nav-inner,.top-inner,.footer{max-width:1360px}}
@media(max-width:900px){.nav-note{display:none}.day-grid{grid-template-columns:repeat(2,1fr)}.split-grid{grid-template-columns:1fr}.pin-form input{max-width:150px}.table-toolbar{flex-wrap:wrap}.stats{gap:12px}.stat{padding:18px}.student-summary strong{font-size:21px}.table-footer{flex-wrap:wrap}.shell{padding:28px 22px 45px}.top-inner,.nav-inner{padding-left:22px;padding-right:22px}}
@media(max-width:600px){h1{font-size:23px}h2{font-size:16px}.top-inner{padding:16px;gap:8px}.brand{font-size:15px;gap:9px}.brand-mark{width:33px;height:33px;border-radius:9px;font-size:21px}.brand small{font-size:7px}.account{gap:7px}.account-label{max-width:95px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:10px}.text-button{font-size:11px}.subtle{display:none}.nav-inner{padding:0 16px;gap:24px;overflow-x:auto}.nav a{font-size:12px;padding:13px 0}.shell{padding:25px 16px 38px}.intro{margin-bottom:22px}.intro .muted{font-size:11px;margin-top:8px}.eyebrow{font-size:9px!important}.stats{gap:8px;margin-bottom:20px}.stat{padding:13px 12px;border-radius:11px}.stat>span{font-size:10px}.stat strong{font-size:27px}.stat strong small{font-size:10px;margin-left:4px}.stat p{font-size:9px;line-height:1.6;min-height:28px}.panel{padding:20px;border-radius:13px;margin-bottom:20px}.table-panel{padding:0}.table-toolbar{padding:19px 17px;gap:12px}.table-toolbar p{font-size:10px}.toolbar-actions{gap:8px}.toolbar-actions .button{font-size:11px;min-height:38px;padding:8px 12px}.filter-line{padding:0 17px 15px;gap:9px}.search-form{flex:1}.search-form input{width:100%;min-width:60px}.search-form .button{padding:8px 11px;font-size:11px}.matrix .student-col{min-width:154px;width:154px;padding-left:17px}.student-name{font-size:12px}.student-number{font-size:10px}.matrix th:not(.student-col),.matrix td{min-width:106px}.matrix .sum-col{min-width:88px}.table-footer{padding:13px 17px;font-size:9px}.legend-gap{margin-left:9px}.split-grid{gap:0}.form-columns{grid-template-columns:1fr;gap:17px}.row-form{flex-direction:column}.row-form button{align-self:flex-start}.cleanup{padding:17px}.day-grid{grid-template-columns:1fr;gap:13px}.day-card{padding:21px}.day-card h2{font-size:24px}.day-top{margin-bottom:10px}.day-label{margin-bottom:15px!important}.student-summary{padding:18px 14px;gap:12px}.student-summary>div{padding:0 10px 0 0}.student-summary strong{font-size:17px}.student-summary .small{font-size:10px}.student-summary .denom{font-size:10px}.section-heading{align-items:flex-start;flex-direction:column;gap:5px}.section-heading .small{font-size:10px}.activity-list li{font-size:11px;align-items:flex-start;gap:5px;flex-wrap:wrap}.activity-list time{font-size:10px}.auth-shell{padding-top:34px;max-width:460px}.auth-card{padding:28px 24px;border-radius:17px}.auth-card h1{font-size:24px}.auth-card .notice{font-size:11px;padding:13px}.auth-card .stack{gap:18px}.footer{padding:20px 16px;font-size:8px;gap:10px}.notice{font-size:11px}.credential-panel td{min-width:90px}.credential-panel .toolbar-actions{margin-top:15px}.system-list>div{font-size:11px}.students-table td,.students-table th{padding:14px 16px}.button{min-height:44px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.course-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;border:1px solid var(--line);border-radius:12px;background:white;padding:15px 19px;margin-bottom:26px}.course-picker{display:flex;align-items:center;gap:12px;max-width:620px;flex:1}.course-picker label{white-space:nowrap;color:var(--muted);font-size:11px}.course-picker select{min-width:120px;max-width:410px;flex:1}.course-current{color:var(--green);font-size:12px;font-weight:600;overflow-wrap:anywhere}.row-form{align-items:flex-end}.row-form label{flex:1}.students-table td{vertical-align:top}@media(max-width:600px){.course-bar{padding:14px;display:block;margin-bottom:22px}.course-picker{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}.course-picker label{grid-column:1/-1}.course-picker select{min-width:0}.course-current{display:none}.nav-inner{gap:20px}.row-form{align-items:stretch}}


/* 他の研究室Webアプリと共通の雰囲気にしたログイン画面 */
.home-link{display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px;color:#54595d;flex:none}
.home-link img{display:block;width:24px;height:24px}
.login-page{background:#f8f9fa;color:#202122;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:15px;line-height:1.65}
.login-header{height:66px;display:flex;align-items:center;justify-content:center;background:#fff;border-bottom:1px solid #a2a9b1}
.login-page .auth-shell{width:100%;max-width:796px;min-height:0;margin:20px auto 0;padding:0 18px 36px}
.login-page .auth-card{background:#fff;border:1px solid #a2a9b1;border-radius:0;padding:24px 28px;box-shadow:none}
.login-page .auth-card h1{font-family:Georgia,"Times New Roman","Yu Mincho",serif;font-size:28px;font-weight:400;letter-spacing:normal;line-height:1.5;border-bottom:1px solid #a2a9b1;margin:0 0 18px;padding:0 0 6px}
.login-page .auth-card .stack{margin-top:0;gap:15px}
.login-page .auth-card label{gap:6px;font-size:15px;font-weight:600}
.login-page .auth-card label input{min-height:43px;padding:9px 10px;border:1px solid #a2a9b1;border-radius:2px;font-size:15px;color:#202122;background:#fff}
.login-page .auth-card label small{font-size:12px;color:#54595d;font-weight:400}
.login-page .auth-card .button{width:auto;align-self:flex-start;justify-content:center;gap:8px;min-height:37px;margin-top:0;padding:7px 12px;border:1px solid #36c;border-radius:2px;background:#36c;color:#fff;font-size:14px;font-weight:700;line-height:1.5}
.login-page .auth-card .button:hover{background:#2a4b8d;border-color:#2a4b8d}
.login-page .auth-description{font-size:13px;color:#54595d;margin:-4px 0 20px}
.login-page .auth-foot{margin-top:16px;padding-top:0;border:0;text-align:left;font-size:12px}
.login-page a{color:#36c}
.login-page .notice{border:1px solid #a2a9b1;border-left:4px solid #36c;border-radius:0;background:#f8f9fa;color:#202122;font-size:13px;padding:10px 14px;margin-bottom:18px}
.login-page .notice.error{border-left-color:#b32424;background:#fff5f5;color:#202122}
.login-page .footer{display:none}
@media(max-width:600px){.login-page .auth-shell{margin-top:18px;padding:0 16px 28px}.login-page .auth-card{padding:22px 20px}.login-page .auth-card h1{font-size:25px}.login-page .auth-card label{font-size:14px}.login-page .auth-card label input{font-size:16px;min-height:44px}.login-page .auth-card .button{min-height:40px}}
.login-page button:focus-visible,.login-page a:focus-visible,.login-page input:focus-visible{outline-color:#36c}

/* メール配布・スマートフォン補正 */
.system-list dd{overflow-wrap:anywhere;text-align:right;min-width:0}.notice{overflow-wrap:anywhere}.button:disabled{opacity:.5;cursor:not-allowed}.split-grid>.panel,.stack>label,.form-columns>label{min-width:0}.csv-example{max-width:100%}.table-scroll{position:relative;max-width:100%}