:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",sans-serif;color:#1f2933;background:#f5f7f8;font-synthesis:none;text-rendering:optimizeLegibility;--ink:#1f2933;--muted:#78838f;--line:#e6eaed;--panel:#fff;--bg:#f5f7f8;--green:#315c4c;--green-soft:#e8f1ec;--blue:#426c9b;--blue-soft:#edf3fa;--red:#b84b4b;--red-soft:#f9eded;--amber:#a36a22;--amber-soft:#fbf3e6;--shadow:0 12px 32px rgba(23,39,50,.08)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--bg)}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.app-shell{min-height:100vh}.boot-screen{min-height:100vh;display:grid;place-content:center;justify-items:center;color:var(--muted);gap:10px}.brand-mark{width:54px;height:54px;display:grid;place-items:center;border-radius:18px;background:var(--green);color:#fff;font-weight:800;font-size:24px}.layout{min-height:100vh;display:grid;grid-template-columns:242px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;background:#fff;border-right:1px solid var(--line);padding:24px 16px;display:flex;flex-direction:column;gap:22px}.brand{display:flex;align-items:center;gap:12px;padding:0 8px}.brand-icon{width:40px;height:40px;border-radius:14px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800;font-size:19px}.brand-title{font-weight:800;font-size:15px}.brand-sub{font-size:11px;color:var(--muted);margin-top:3px}.nav-label{font-size:10px;font-weight:800;letter-spacing:.08em;color:#a2abb3;padding:0 10px 6px}.nav-list{display:grid;gap:5px}.nav-btn{border:0;background:transparent;color:#65717c;text-align:left;padding:12px 12px;border-radius:12px;display:flex;gap:12px;align-items:center;font-size:13px;font-weight:650}.nav-btn:hover{background:#f5f7f8;color:var(--ink)}.nav-btn.active{background:var(--green-soft);color:var(--green)}.nav-icon{width:20px;text-align:center;font-size:16px}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--line);padding:16px 8px 0}.user-chip{display:flex;align-items:center;gap:9px}.avatar{width:34px;height:34px;display:grid;place-items:center;background:#edf1ef;color:var(--green);border-radius:50%;font-weight:800;font-size:12px}.user-name{font-size:12px;font-weight:750}.user-identifier{font-size:10px;color:var(--muted);margin-top:3px;max-width:140px;overflow:hidden;text-overflow:ellipsis}.main{min-width:0;padding:26px 32px 44px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}.page-eyebrow{font-size:11px;color:var(--muted);margin-bottom:5px}.page-title{font-size:25px;line-height:1.2;font-weight:850;letter-spacing:-.04em;margin:0}.top-actions{display:flex;gap:8px;align-items:center}.date-chip{font-size:12px;color:#5e6b75;border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 13px}.content{max-width:1500px;margin:0 auto}.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.panel{background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:18px;min-width:0}.panel-title{font-size:14px;font-weight:800;margin:0 0 14px}.muted{color:var(--muted)}.small{font-size:11px}.tiny{font-size:10px}.stat{padding:17px 18px}.stat-label{font-size:11px;color:var(--muted);font-weight:650}.stat-value{font-size:27px;font-weight:850;letter-spacing:-.04em;margin:8px 0 3px}.stat-foot{font-size:10px;color:var(--muted)}.stat.green .stat-value{color:var(--green)}.stat.blue .stat-value{color:var(--blue)}.stat.red .stat-value{color:var(--red)}.stat.amber .stat-value{color:var(--amber)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.section-title{font-size:15px;font-weight:850;margin:0}.section-desc{font-size:11px;color:var(--muted);margin-top:4px}.btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:9px 13px;border-radius:10px;font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:36px}.btn:hover{background:#f7f9fa}.btn.primary{background:var(--green);border-color:var(--green);color:#fff}.btn.primary:hover{background:#264d3e}.btn.soft{background:var(--green-soft);border-color:var(--green-soft);color:var(--green)}.btn.danger{color:var(--red);background:var(--red-soft);border-color:#f3dddd}.btn.ghost{background:transparent}.btn.sm{min-height:29px;padding:6px 9px;font-size:10px;border-radius:8px}.btn.full{width:100%}.btn-row{display:flex;flex-wrap:wrap;gap:8px}.input,.select,.textarea{width:100%;border:1px solid #dce2e6;border-radius:10px;padding:10px 11px;background:#fff;color:var(--ink);font-size:12px;outline:none;min-height:39px}.input:focus,.select:focus,.textarea:focus{border-color:#83aa98;box-shadow:0 0 0 3px rgba(49,92,76,.09)}.textarea{min-height:76px;resize:vertical}.label{font-size:11px;color:#52606b;font-weight:750;display:block;margin-bottom:6px}.field{min-width:0}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.field-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:15px}.search{max-width:320px;flex:1}.pill{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:5px 9px;font-size:10px;font-weight:750;white-space:nowrap;background:#f0f2f3;color:#65717b}.pill.green{background:var(--green-soft);color:var(--green)}.pill.blue{background:var(--blue-soft);color:var(--blue)}.pill.red{background:var(--red-soft);color:var(--red)}.pill.amber{background:var(--amber-soft);color:var(--amber)}.pill.gray{background:#f0f2f3;color:#65717b}.list{display:grid;gap:8px}.student-row,.record-card,.note-row,.event-row{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff}.student-row{cursor:pointer}.student-row:hover,.record-card:hover{border-color:#cddbd3}.student-main{min-width:0;flex:1}.student-name{font-size:13px;font-weight:800}.student-meta{font-size:10px;color:var(--muted);margin-top:4px;line-height:1.5}.student-number{font-size:10px;font-weight:800;color:#76818b;background:#f3f5f5;border-radius:6px;padding:4px 6px}.row-actions{display:flex;align-items:center;gap:6px}.empty{border:1px dashed #dce2e6;border-radius:14px;padding:26px 16px;text-align:center;color:var(--muted);font-size:12px;background:#fbfcfc}.weekday-tabs{display:flex;flex-wrap:wrap;gap:6px}.weekday-chip{border:1px solid var(--line);background:#fff;border-radius:9px;padding:7px 10px;font-size:11px;color:#68747e}.weekday-chip.active{background:var(--green-soft);border-color:#d9e9df;color:var(--green);font-weight:800}.calendar-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,.9fr);gap:16px;align-items:start}.calendar-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.calendar-month{font-size:18px;font-weight:850}.calendar-weekdays,.calendar-days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px}.calendar-weekdays div{text-align:center;font-size:10px;color:var(--muted);padding:8px 0}.calendar-day{min-height:87px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:7px;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:4px;min-width:0}.calendar-day:hover{border-color:#9bb9a8}.calendar-day.selected{border:2px solid var(--green);padding:6px;background:#f8fbf9}.calendar-day.today .day-num{color:var(--green);font-weight:900}.calendar-day.other{opacity:.35}.day-num{font-size:11px;font-weight:750}.day-metric{font-size:9px;color:#63716b;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.day-metric.good{color:var(--green)}.day-metric.bad{color:var(--red)}.day-markers{display:flex;flex-wrap:wrap;gap:3px}.day-dot{width:5px;height:5px;border-radius:50%;background:#91a4b9}.day-dot.closure{background:#c75b5b}.day-dot.special_class{background:#577ead}.day-dot.weekly_topic{background:#c28b3c}.detail-date{font-size:17px;font-weight:850}.detail-scroll{max-height:660px;overflow:auto}.group-title{font-size:12px;font-weight:850;margin:16px 0 8px;display:flex;align-items:center;justify-content:space-between}.attendance-card{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff;margin-bottom:8px}.attendance-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.attendance-times{font-size:10px;color:var(--muted);margin-top:6px}.attendance-buttons{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.contact-list{display:flex;flex-wrap:wrap;gap:6px}.inline-note{font-size:10px;color:#65717b;background:#f6f8f7;padding:8px 9px;border-radius:8px;margin-top:8px;line-height:1.5}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;min-width:560px;background:#fff}th,td{padding:10px 11px;border-bottom:1px solid var(--line);text-align:left;font-size:11px;vertical-align:middle}th{background:#f8f9fa;color:#75808a;font-size:10px;font-weight:800;white-space:nowrap}tr:last-child td{border-bottom:0}.money{font-weight:850;font-variant-numeric:tabular-nums}.positive{color:var(--green)}.negative{color:var(--red)}.note-row{align-items:flex-start}.note-date{min-width:76px;font-size:10px;color:var(--muted)}.note-content{font-size:11px;line-height:1.55;flex:1}.modal-backdrop{position:fixed;inset:0;background:rgba(18,29,36,.38);display:grid;place-items:center;padding:18px;z-index:100}.modal{width:min(680px,100%);max-height:min(88vh,900px);overflow:auto;background:#fff;border-radius:19px;box-shadow:var(--shadow);padding:22px}.modal.wide{width:min(900px,100%)}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:17px}.modal-title{font-size:17px;font-weight:850}.close-btn{border:0;background:#f2f4f5;border-radius:9px;width:32px;height:32px;font-size:18px;color:#66717b}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.schedule-editor{display:grid;gap:8px}.schedule-edit-row{display:grid;grid-template-columns:76px 1fr 1fr 104px 32px;gap:7px;align-items:end;padding:9px;background:#f8faf9;border-radius:10px}.divider{height:1px;background:var(--line);margin:14px 0}.loading{color:var(--muted);font-size:12px;padding:30px;text-align:center}.toast{position:fixed;z-index:200;bottom:22px;left:50%;transform:translateX(-50%);background:#23332c;color:#fff;border-radius:11px;padding:11px 15px;font-size:12px;box-shadow:var(--shadow);max-width:calc(100vw - 30px)}.hidden{display:none!important}.mobile-top{display:none}.mobile-nav{display:none}.week-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}.week-col{background:#fafbfb;border:1px solid var(--line);border-radius:12px;padding:10px;min-width:0}.week-name{font-size:11px;font-weight:850;margin-bottom:9px}.week-item{background:white;border:1px solid var(--line);border-radius:8px;padding:7px;margin-bottom:6px;font-size:10px;line-height:1.5}.progress{height:7px;border-radius:99px;background:#edf0f1;overflow:hidden}.progress>span{display:block;height:100%;background:var(--green);border-radius:99px}.warning-box{border:1px solid #efdfbf;background:#fffaf0;color:#775521;border-radius:12px;padding:12px;font-size:11px;line-height:1.6}.success-box{border:1px solid #d7e8dd;background:#f4faf6;color:#2d6247;border-radius:12px;padding:12px;font-size:11px;line-height:1.6}.check-line{display:flex;gap:9px;align-items:center;font-size:11px;color:#53616b}.check-line input{accent-color:var(--green)}
@media(max-width:1100px){.layout{grid-template-columns:215px minmax(0,1fr)}.main{padding:22px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.calendar-layout{grid-template-columns:1fr}.detail-scroll{max-height:none}.week-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:760px){.layout{display:block;padding-bottom:76px}.sidebar{display:none}.main{padding:18px 14px 24px}.topbar{margin-bottom:18px;align-items:flex-start}.page-title{font-size:22px}.top-actions .date-chip{display:none}.mobile-top{display:flex;align-items:center;gap:9px;margin-bottom:18px}.mobile-top .brand-icon{width:34px;height:34px;border-radius:11px}.mobile-top-title{font-size:13px;font-weight:850}.mobile-top-user{margin-left:auto;font-size:10px;color:var(--muted)}.mobile-nav{position:fixed;z-index:60;bottom:0;left:0;right:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);padding:7px 5px calc(7px + env(safe-area-inset-bottom));gap:2px}.mobile-nav button{border:0;background:transparent;color:#78838b;display:grid;justify-items:center;gap:4px;padding:5px 2px;font-size:9px}.mobile-nav button.active{color:var(--green);font-weight:850}.mobile-nav .nav-icon{font-size:17px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.grid-2{grid-template-columns:1fr}.panel{padding:14px;border-radius:14px}.stat{padding:13px}.stat-value{font-size:23px}.calendar-day{min-height:66px;padding:5px;border-radius:8px}.calendar-day.selected{padding:4px}.calendar-weekdays,.calendar-days{gap:3px}.calendar-weekdays div{font-size:9px}.day-num{font-size:10px}.day-metric{font-size:8px}.calendar-layout{gap:10px}.field-grid,.field-grid.three{grid-template-columns:1fr}.schedule-edit-row{grid-template-columns:64px 1fr 1fr;}.schedule-edit-row .duration-field{grid-column:2}.schedule-edit-row .remove-schedule{grid-column:3;justify-self:end}.modal-backdrop{padding:8px;align-items:end}.modal{width:100%;max-height:92vh;border-radius:18px 18px 10px 10px;padding:17px}.toolbar .search{max-width:none;flex-basis:100%}.week-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.student-row{padding:10px}.row-actions .btn{padding:6px 8px}.detail-date{font-size:15px}.date-picker-row{display:grid;grid-template-columns:1fr auto;gap:7px}.date-picker-row .btn{grid-column:2}.section-head{align-items:flex-start}.attendance-buttons .btn{flex:1}.topbar .page-eyebrow{font-size:10px}}

/* 아이디/비밀번호 인증 화면 */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:22px;background:linear-gradient(180deg,#f7f8fa 0%,#eef3f0 100%)}
.auth-card{width:min(440px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.auth-title{font-size:25px;font-weight:900;letter-spacing:-.04em;margin:0;color:var(--ink)}
.auth-desc{font-size:12px;color:var(--muted);line-height:1.7;margin:8px 0 22px}
.auth-foot{font-size:10px;color:var(--muted);line-height:1.6;text-align:center;margin:16px 0 0}
@media(max-width:760px){.auth-wrap{padding:14px}.auth-card{padding:22px 18px;border-radius:18px}.auth-title{font-size:22px}}