@import url('https://fonts.googleapis.com/css2?family=K2D:wght@400;500;600;700&display=swap');

:root{--ink:#193f36;--muted:#6d857d;--green:#147853;--line:#dce9e2}
*{box-sizing:border-box}
body{min-height:100vh;margin:0;color:var(--ink);background:radial-gradient(ellipse at 15% 2%,#dff0e6,transparent 55%),#f5f9f6;font:17px/1.55 'K2D',system-ui,sans-serif}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0;border-radius:9px;padding:10px 15px;font-weight:600;min-height:42px}
button:disabled{opacity:.5;cursor:not-allowed}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #73c99d;outline-offset:2px}
input,select,textarea{width:100%;border:1px solid #d6e5dd;border-radius:9px;padding:11px;color:var(--ink);background:white;min-width:0}
select{padding-right:27px}
label{display:block;font-weight:500;font-size:16px;margin:12px 0 6px}
label>input,label>select,label>textarea{display:block;margin-top:6px}
input[type=checkbox]{width:18px;height:18px;accent-color:var(--green);margin:0}
h1,h2,h3,p{margin:0}
h2{font-size:21px;line-height:1.4}
h3{font-size:19px;line-height:1.4}
p{color:var(--muted);font-size:15px;margin:7px 0}
small{display:block;color:var(--muted);font-size:14px}
strong{font-weight:600}

.app-shell{width:min(100% - 32px,760px);margin:20px auto}
.hero{position:relative;overflow:hidden;display:flex;align-items:center;gap:18px;padding:26px 28px;border-radius:22px;background:linear-gradient(112deg,#12593e 0%,#188053 54%,#45b77b 100%);color:white;box-shadow:0 10px 35px #195e3520}
.hero:after{content:'';position:absolute;pointer-events:none;right:-80px;top:-125px;width:400px;height:400px;border:45px solid #ffffff05;border-radius:50%}
.brand-logo{width:78px;height:78px;object-fit:contain;flex-shrink:0}
.brand-name{font-size:14px;font-weight:700;letter-spacing:2px}
.hero h1{font-size:27px;line-height:1.35;margin:8px 0;font-weight:700;letter-spacing:-.3px}
.hero h1 span{font-size:25px}
.hero p{font-size:15px;color:#d4f0df;margin:5px 0 0}
.utility{display:flex;justify-content:space-between;align-items:center;padding:11px 4px}
.text-button{background:transparent;color:var(--green);font-size:15px;padding:6px 8px;min-height:34px}
.pill{background:#e4f2e9;color:#257451;border-radius:30px;padding:5px 10px;font-size:13px;font-weight:600}
.pill.closed{background:#fff2da;color:#9e701a}
main{padding-top:2px}
.card{background:white;border:1px solid var(--line);border-radius:16px;box-shadow:0 4px 16px #1c664004;margin:0 0 14px}
.pad{padding:25px}

.stepper{display:flex;align-items:center;gap:10px;margin:14px 7px 26px;color:#7c9588;font-size:15px}
.stepper span{display:flex;align-items:center;gap:8px;white-space:nowrap}
.stepper b{height:27px;width:27px;display:grid;place-items:center;border-radius:50%;border:1px solid #ccdfd3;background:white;color:var(--green);font-size:14px}
.stepper i{height:1px;background:#dbe9e0;flex:1}
.stepper span.active{color:var(--green);font-weight:500}
.stepper span.active b{color:white;background:var(--green);border-color:var(--green)}
.account-box{background:#f0f7f3;padding:12px 14px;border-radius:9px;margin:20px 0 17px;color:#6b8578;font-size:15px;overflow-wrap:anywhere}
.inline{display:flex;gap:10px;align-items:center}
.inline input{flex:1;min-width:0}
.inline button{white-space:nowrap}
.primary{background:var(--green);color:white;box-shadow:0 3px 8px #17693c15}
.primary:hover{background:#116441}
.ghost{background:#f5f8f6;border:1px solid #dce8e0;color:#376650}
.small{font-size:14px;padding:6px 10px;min-height:32px}
.icon-button{width:40px;flex-shrink:0;padding:6px;font-size:22px}

.identity{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:17px 20px}
.identity small{font-size:12px;letter-spacing:.9px}
.identity strong{display:block;font-size:20px}
.identity span{display:block;font-size:14px;color:var(--muted)}
.identity button{font-size:14px;padding:8px 10px;white-space:nowrap}
.assignment-panel{padding:15px 20px}
.assignment-panel label{margin-top:0}
.count{font-size:13px;color:var(--muted);font-weight:400}
.course-head{padding:20px;display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.course-code{font-size:13px;font-weight:700;color:var(--green)}
.course-head h2{font-size:21px;margin:4px 0}
.course-head p{font-size:14px;overflow-wrap:anywhere}
.info-box{background:#f7f8ef;color:#7c794c;font-size:14px;padding:10px 13px;margin:0 20px 12px;border-radius:7px}
.presence-box{font-size:14px;color:#287357;padding:11px 13px;margin:0 20px 12px;border-radius:8px;background:#edf8f0;border:1px solid #d3eadb;overflow-wrap:anywhere}
.presence-box ul{margin:4px 0 0;padding-left:17px}
.calendar-toolbar{padding:0 20px 13px}
.tabs{display:inline-flex;background:#f1f5f2;border-radius:8px;padding:3px}
.tabs button{font-size:14px;color:#71887a;background:transparent;padding:7px 10px;min-height:33px;border-radius:6px}
.tabs button.active{color:var(--green);background:white;box-shadow:0 1px 5px #1a452b10}
.legend{display:flex;gap:15px;font-size:13px;color:var(--muted);margin-top:12px}
.legend span{display:flex;align-items:center;gap:5px}
.dot{width:8px;height:8px;display:inline-block;border-radius:2px}
.saved{background:#40ad7a}
.draft{background:#e4b759}
.other{background:#7c95a0}

.calendar-scroll{max-height:445px;overflow:auto;border-top:1px solid var(--line);overscroll-behavior:contain}
.calendar{width:100%;border-collapse:separate;border-spacing:0;table-layout:fixed;font-size:15px}
.calendar th{position:sticky;top:0;background:#f2f7f4;color:#557565;padding:12px 8px;font-size:14px;border-bottom:1px solid var(--line);z-index:1}
.calendar th:first-child{width:27%;text-align:left;padding-left:20px}
.calendar th small{font-size:12px}
.calendar td{border-right:1px solid #edf2ee;border-bottom:1px solid #e8f0eb;vertical-align:middle;padding:5px}
.calendar td:first-child{padding:9px 8px 9px 20px}
.calendar td:first-child strong{font-size:14px;display:block}
.calendar td:first-child small{font-size:12px}
.calendar .new-week td{border-top:2px solid #dce9df}
.slot-button{padding:9px 7px;min-height:47px;width:100%;border-radius:6px;border:1px dashed #dfe8e2;background:white;color:#6f8478;font-size:13px;line-height:1.4;text-align:center;overflow-wrap:anywhere;font-weight:500}
.slot-button.free:hover{background:#f0f8f2}
.slot-button.selected{background:#d4fae6;border:1px solid #92d9b2;color:#246b48}
.slot-button.drafting{background:#fff2cd;border:1px dashed #dcb45f;color:#8c6318}
.slot-button.occupied{background:#edf2f4;border:1px solid #dce5e9;color:#45616b}
.slot-button.unavailable{background:repeating-linear-gradient(135deg,#eff2f0,#eff2f0 5px,#e4eae6 5px,#e4eae6 10px);border-color:transparent;color:#97a49b}
.slot-button:disabled{opacity:1}
.calendar-foot{display:flex;justify-content:space-between;gap:12px;padding:10px 20px;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
.calendar-foot strong{color:var(--green);white-space:nowrap}

.contact-area{padding:18px 20px}
.contact-area h3{font-size:17px}
.check-row{display:flex;align-items:center;gap:8px;margin:12px 0 18px}
.optional{font-size:14px;color:var(--muted);font-weight:400}
.minor-actions{margin-top:14px;font-size:14px;color:var(--muted)}
summary{cursor:pointer;font-weight:500}
.minor-actions button{margin:9px 5px 0 0;font-size:14px;padding:7px 10px}
.save-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;bottom:10px;z-index:5;border:1px solid #d4e4d8;background:#ffffffed;backdrop-filter:blur(8px);border-radius:12px;padding:13px 17px;box-shadow:0 -4px 24px #2c604812;margin:12px 0}
.save-bar strong{font-size:14px;display:block}
.save-bar small{font-size:12px;max-width:300px}
.save-bar button{white-space:nowrap;min-width:130px}
.demo-banner{background:#fff4de;color:#98732d;padding:8px 12px;font-size:13px;border-radius:8px;margin-bottom:12px}
.success-box{padding:13px;margin:14px 0;background:#effbf2;border:1px solid #bde4c9;color:#27714d;border-radius:9px;font-size:15px}
.complete-check{height:44px;width:44px;display:grid;place-items:center;background:#e7f6ed;border-radius:50%;font-size:30px;color:#278d5f;margin-bottom:15px}
.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:17px}
.actions button{font-size:15px}
.result-table{border-collapse:collapse;table-layout:fixed;width:100%;font-size:14px;margin:18px 0}
.result-table th{text-align:left;background:#edf2ed;padding:10px 8px;color:#3b5e49;font-size:13px}
.result-table th:nth-child(1){width:23%}
.result-table th:nth-child(2){width:31%}
.result-table td{padding:12px 8px;border-bottom:1px solid #e4ece5;vertical-align:top;overflow-wrap:anywhere}
.result-table td strong{display:block;margin:0 0 3px}
.result-line{margin:0 0 6px;font-size:13px}
.place-line{color:var(--green);font-weight:500;margin-top:7px}
.muted{color:var(--muted);font-size:14px}
.empty{text-align:center;font-size:15px;color:var(--muted);padding:20px}

.admin-toolbar,.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:15px}
.stat{background:white;border:1px solid var(--line);border-radius:12px;padding:15px}
.stat strong{display:block;font-size:27px}
.stat small{font-size:13px}
.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.full{width:100%}
.warnings{padding-left:17px;font-size:14px;color:#927141;max-height:200px;overflow:auto}
.warnings li{margin:8px 0}
.admin-group{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:14px 0;font-size:15px}
.admin-group small{font-size:13px}
.admin-group button{font-size:13px;min-height:34px;padding:5px 9px;align-self:center;white-space:nowrap}
.history-item{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;overflow-wrap:anywhere}
.history-item>strong{color:var(--green)}
.history-item small{font-size:13px}
.history-item details{padding:8px 10px;margin-top:8px;border-radius:7px;background:#f5f8f5}
.history-diff{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.history-diff p{font-size:13px}
.history-actor{color:#33654d;font-weight:600}
.modal{position:fixed;inset:0;z-index:30;background:#173d2a65;display:grid;place-items:center;padding:18px}
.modal-card{padding:25px;width:440px;max-width:100%;max-height:90vh;overflow:auto}
.modal-card .panel-heading{margin-bottom:5px}
#adminPin{font-size:28px;letter-spacing:15px;text-align:center}
#demoPinHint{text-align:center;margin-top:15px}
.error-text{color:#ac3f36;min-height:19px;font-size:15px}
#notice{padding:12px 15px;background:#e9f5ec;border:1px solid #bedbc8;border-radius:9px;color:#2f7650;font-size:15px;margin-bottom:15px}
#notice.error{background:#fff0ed;border-color:#edcbc5;color:#a7473a}
footer{text-align:center;color:#9aa99f;font-size:13px;padding:24px 0 8px}
#printArea{display:none}
[hidden]{display:none!important}

@media(max-width:560px){
  .app-shell{width:calc(100% - 24px);margin:12px auto}
  .hero{padding:23px 18px;gap:12px;border-radius:19px}
  .brand-logo{width:58px;height:58px}
  .brand-name{font-size:12px;letter-spacing:1.3px}
  .hero h1{font-size:23px;line-height:1.3;margin:7px 0}
  .hero h1 span{font-size:20px}
  .hero p{font-size:13px}
  .pad{padding:20px}
  .stepper{font-size:13px;gap:7px;margin:9px 3px 22px}
  .stepper span{gap:6px}
  .stepper b{width:25px;height:25px}
  .identity{padding:15px}
  .identity strong{font-size:18px}
  .assignment-panel{padding:14px 15px}
  .course-head{padding:17px 15px}
  .course-head h2{font-size:19px}
  .calendar-toolbar{padding:0 15px 13px}
  .info-box,.presence-box{margin-left:15px;margin-right:15px}
  .legend{gap:12px;font-size:12px}
  .calendar th:first-child{width:29%;padding-left:12px}
  .calendar td:first-child{padding-left:12px;padding-right:4px}
  .calendar td{padding:4px}
  .slot-button{font-size:13px;padding:7px 4px;min-height:48px}
  .calendar-foot{padding:9px 12px;font-size:12px}
  .contact-area{padding:17px 15px}
  .save-bar{bottom:8px;padding:12px}
  .save-bar button{min-width:116px;padding:10px 12px}
  .save-bar small{max-width:160px;font-size:12px}
  .result-table thead{display:none}
  .result-table,.result-table tbody,.result-table tr,.result-table td{display:block;width:100%}
  .result-table tr{background:#f6f9f6;border:1px solid #e1ebe2;border-radius:10px;margin:10px 0;padding:10px 12px}
  .result-table td{padding:5px 0;border:0}
  .result-table td:before{content:attr(data-label);display:block;color:#7a8d7c;font-size:12px;margin-bottom:3px}
  .result-line{font-size:14px}
  .stats{gap:7px}
  .stat{padding:12px}
  .stat strong{font-size:25px}
  .two-cols{gap:9px}
  .history-diff{grid-template-columns:1fr}
}

@media print{
  @page{size:A4 portrait;margin:12mm}
  body{background:white;font-family:'Times New Roman',serif;color:black}
  .app-shell,.modal{display:none!important}
  #printArea{display:block!important}
  .print-head{display:flex;justify-content:space-between;text-align:center;font-weight:bold;font-size:11px}
  .print-title{text-align:center;font-size:15px;margin:18px 0 9px}
  .print-subtitle{text-align:center;font-size:14px;font-weight:bold;margin-bottom:13px}
  .print-meta{border:1px dashed #999;padding:7px;margin-bottom:10px;font-size:11px}
  .print-table{width:100%;border-collapse:collapse;margin:10px 0;font-size:10px;table-layout:fixed}
  .print-table th,.print-table td{border:1px solid black;padding:4px;vertical-align:middle;overflow-wrap:anywhere}
  .print-table th{text-align:center}
  .print-table thead{display:table-header-group}
  .print-table tr{break-inside:avoid}
  .print-status,.print-note{font-size:10px;font-style:italic}
  .print-roster th:nth-child(1){width:4%}
  .print-roster th:nth-child(2){width:9%}
  .print-roster th:nth-child(4){width:5%}
  .print-roster th:nth-child(5){width:7%}
  .print-roster th:nth-child(6){width:23%}
  .print-roster th:nth-child(7){width:13%}
  .print-schedule th:first-child{width:6%}
  .print-schedule th:nth-child(2){width:18%}
  .print-schedule td{text-align:center}
}

.calendar.week-grid th:first-child{width:42px;text-align:center;padding:10px 3px}
.calendar.week-grid th:nth-child(2){width:122px}
.calendar.week-grid td:first-child{padding:8px 3px;text-align:center;font-weight:500}
.calendar.week-grid td:nth-child(2){padding:8px 4px;text-align:center;white-space:nowrap;font-size:13px;font-variant-numeric:tabular-nums}
.calendar.week-grid th{padding:10px 4px;text-align:center}
.calendar.week-grid .slot-button{min-height:42px;padding:7px 3px;font-size:14px}
.calendar.week-grid td{padding:4px}
.calendar-hint{font-size:14px;color:var(--muted);margin:9px 0 0}

@media(max-width:560px){
  .calendar.week-grid th:first-child{width:32px}
  .calendar.week-grid th:nth-child(2){width:100px}
  .calendar.week-grid td:nth-child(2){font-size:12px;letter-spacing:-.3px}
  .calendar.week-grid th{font-size:13px}
  .calendar.week-grid .slot-button{font-size:13px;min-height:44px}
}

.group-count{display:inline-flex;align-items:center;font-size:24px;font-weight:700;line-height:1.2;color:#126d49;background:#e4f3e9;border:1px solid #b9ddc7;border-radius:8px;padding:5px 10px;margin-left:6px;vertical-align:middle}
.assignment-help{font-size:15px;color:#456e5b;margin:9px 0 0}
.assignment-panel label{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.save-feedback{min-width:0;flex:1}
.save-error{color:#a0382c;background:#fff0ed;border:1px solid #efc1b8;border-radius:7px;padding:8px 10px;font-size:15px;font-weight:600;margin-bottom:6px;overflow-wrap:anywhere}
.save-bar{align-items:center}
.save-bar:has(.save-error:not([hidden])){border-color:#e6b4a9}
.edit-teacher-heading{font-size:17px;margin-top:16px}
#editStaffCurrent{margin:5px 0}
#groupError{padding:9px;background:#fff0ed;border-radius:7px;margin:12px 0}

@media(max-width:560px){
  .group-count{font-size:23px}
  .assignment-help{font-size:14px}
  .save-error{font-size:14px;padding:7px}
  .save-bar button{min-width:108px}
}

.page-main{min-width:0}
.app-shell.has-roster{width:min(100% - 32px,1100px);display:grid;grid-template-columns:minmax(0,760px) 300px;gap:18px;align-items:start}
.class-roster{position:sticky;top:20px;padding:18px;max-height:calc(100vh - 40px);overflow-y:auto;overscroll-behavior:contain}
.class-roster h3{font-size:18px;margin-bottom:12px}
.class-roster h4{font-size:15px;margin:14px 0 8px;color:var(--green)}
.roster-table{border-collapse:collapse;width:100%;font-size:14px}
.roster-table th{background:#edf6f0;text-align:left;padding:8px 6px}
.roster-table td{padding:9px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.roster-table th:first-child{width:70px}
.roster-table td:first-child{font-weight:600}
#adminGroups,#historyList{max-height:420px;overflow-y:auto;overscroll-behavior:contain;border:1px solid var(--line);border-radius:10px;margin-top:12px;padding:0 12px;scrollbar-gutter:stable}
.admin-group.is-scheduled{background:#fff3c9;border-radius:7px;margin:5px 0;padding:12px 8px;border-bottom:1px solid #ead392}
.admin-group.is-scheduled small:last-child{color:#836018;font-weight:600}
.timetable-preview{max-height:480px;overflow:auto;margin-top:15px;overscroll-behavior:contain}
.timetable-preview h4{margin:10px 0}
.preview-table{width:100%;border-collapse:separate;border-spacing:0;table-layout:fixed;font-size:14px}
.preview-table th{position:sticky;top:0;background:#edf6f0;z-index:1}
.preview-table th,.preview-table td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 5px;text-align:center;overflow-wrap:anywhere}
.preview-table th:first-child{width:40px}
.preview-table th:nth-child(2){width:135px}
.preview-table td:has(small){background:#fff6df}

@media(max-width:1050px){
  .app-shell.has-roster{display:block;width:min(100% - 32px,760px)}
  .class-roster{position:static;max-height:270px;margin-bottom:14px}
  .class-roster h3{margin-bottom:4px}
  .class-roster h4{margin-top:8px}
}

@media(max-width:560px){
  .app-shell.has-roster{width:calc(100% - 24px)}
  #adminGroups,#historyList{max-height:350px;padding:0 8px}
  .preview-table{font-size:12px}
  .preview-table th:first-child{width:30px}
  .preview-table th:nth-child(2){width:100px}
  .class-roster{padding:15px}
}

.calendar.week-grid th:nth-child(2){width:155px}
.calendar.week-grid th:first-child{width:48px}
.calendar.week-grid .slot-button{min-height:48px}
.class-roster{padding:16px}
.roster-table th:first-child{width:78px}
.app-shell.has-roster{grid-template-columns:minmax(0,760px) 320px;width:min(100% - 32px,1120px)}

@media(max-width:1050px){
  .app-shell.has-roster{display:block;width:min(100% - 32px,760px)}
}

@media(max-width:560px){
  .app-shell.has-roster{width:calc(100% - 24px)}
  .calendar.week-grid th:first-child{width:34px}
  .calendar.week-grid th:nth-child(2){width:107px}
  .calendar.week-grid td:nth-child(2){white-space:normal;font-size:12px;line-height:1.4}
  .calendar.week-grid .slot-button{font-size:13px;min-height:48px}
  .preview-table th:nth-child(2){width:105px}
  .preview-table td:nth-child(2){overflow-wrap:normal}
  .hero h1{font-size:23px}
  .hero h1 span{font-size:20px}
}

.holiday-range{border:1px solid #cbded2;border-radius:10px;padding:4px 14px 14px;margin:17px 0 10px;min-width:0}
.holiday-range legend{font-size:15px;font-weight:600;padding:0 6px}
.holiday-range label{margin-top:7px}
.holiday-range button{margin:12px 0 6px}
.holiday-range small{font-size:13px}
.holiday-success{font-size:14px;color:#176a47;background:#edf8f0;padding:10px;border-radius:7px}
#holidayRangeStatus.error-text{font-size:14px;background:#fff0ed;padding:10px;border-radius:7px}
#holidayHelp{margin-top:6px;line-height:1.5}

.round-selector label{margin-top:0}
.round-selector p{font-size:14px}
.import-summary{background:#f0f7f2;border:1px solid #c8e0d0;padding:15px;border-radius:10px;margin:15px 0}
.import-summary strong{display:block;margin:10px 0;font-size:15px}
#importPreview>.error-text{padding:12px;margin-top:12px;background:#fff0ed;border-radius:8px;font-size:14px}

.date-field{position:relative;display:block;min-width:0;margin-top:6px}
.date-field>input[data-date-kind]{display:block;margin:0;padding-right:42px;font-variant-numeric:tabular-nums}
.calendar-icon{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:22px;color:#366b53;pointer-events:none;line-height:1}
.date-field>input.native-date-picker{position:absolute;right:0;top:0;width:42px;height:100%;min-width:0;padding:0;border:0;opacity:0;cursor:pointer;margin:0}
.date-field:focus-within{border-radius:9px;outline:2px solid #73c99d;outline-offset:2px}
.calendar.week-grid th:nth-child(2){width:175px}

@media(max-width:560px){
  .calendar.week-grid th:nth-child(2){width:112px}
  .calendar.week-grid td:nth-child(2){font-size:12px;overflow-wrap:normal}
}

.metadata-scroll{max-height:260px;overflow:auto;margin-top:12px;overscroll-behavior:contain}
.metadata-table{border-collapse:collapse;width:100%;font-size:13px}
.metadata-table th,.metadata-table td{text-align:left;padding:8px;border:1px solid #cbded2;vertical-align:top;overflow-wrap:anywhere}
.metadata-table th{background:#e3efe7;position:sticky;top:0}
.metadata-table th:nth-child(3){width:55px}