:root{--forest: #2f5233;--forest-dark: #203a24;--gold: #c89b3c;--paper: #faf8f3;--paper-deep: #f1ede2;--ink: #26241f;--ink-soft: #6b6558;--line: #e4dfd3;--danger: #b6462f;--radius: 10px;--font-display: "Gowun Batang", serif;--font-body: "Pretendard", -apple-system, BlinkMacSystemFont, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 20% 20%,#eef1e6 0%,var(--paper) 55%);padding:24px}.login-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 36px;box-shadow:0 12px 32px #2f523314}.login-brand{display:flex;align-items:center;gap:14px;margin-bottom:32px}.login-mark{font-family:var(--font-display);font-size:40px;color:var(--forest);line-height:1}.login-brand h1{font-family:var(--font-display);font-size:22px;margin:0;color:var(--ink)}.login-brand p{margin:2px 0 0;font-size:13px;color:var(--ink-soft)}.login-form{display:flex;flex-direction:column;gap:16px}.login-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-soft)}.login-form input{padding:10px 12px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-family:inherit;color:var(--ink)}.login-form input:focus{outline:2px solid var(--forest);outline-offset:1px}.login-form button{margin-top:8px;background:var(--forest);color:#fff;border:none;border-radius:6px;padding:11px;font-size:14px;font-weight:600}.login-form button:hover{background:var(--forest-dark)}.login-form button:disabled{opacity:.6;cursor:default}.form-error{color:var(--danger);font-size:13px;margin:0}.login-footnote{margin:24px 0 0;font-size:12px;color:var(--ink-soft);text-align:center}.app-shell{min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;padding:14px 32px;background:var(--forest);color:#fff}.app-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:17px}.app-mark{font-size:22px}.app-nav{display:flex;gap:4px}.app-nav a{color:#ffffffbf;text-decoration:none;font-size:13px;padding:7px 12px;border-radius:6px}.app-nav a:hover{background:#ffffff1a;color:#fff}.app-nav a.active{background:#ffffff2e;color:#fff;font-weight:600}.app-user{display:flex;align-items:center;gap:12px;font-size:13px}.user-name{font-weight:600}.role-badge{padding:3px 10px;border-radius:999px;font-size:11px;border:1px solid rgba(255,255,255,.4)}.role-admin{background:var(--gold);color:var(--forest-dark);border-color:transparent;font-weight:700}.app-header .btn-ghost{color:#fff;border-color:#ffffff80}.app-header .btn-ghost:hover{background:#ffffff1f}.app-main{max-width:1080px;margin:0 auto;padding:32px 24px 80px}.center-message{display:flex;align-items:center;justify-content:center;height:60vh;color:var(--ink-soft)}.page-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:20px}.page-header h1{font-family:var(--font-display);font-size:24px;margin:0 0 4px}.page-subtitle{margin:0;font-size:13px;color:var(--ink-soft)}.page-header>button{background:var(--forest);color:#fff;border:none;border-radius:6px;padding:10px 18px;font-size:14px;font-weight:600}.page-header>button:hover{background:var(--forest-dark)}.search-box{width:100%;padding:10px 14px;border:1px solid var(--line);border-radius:6px;font-size:14px;margin-bottom:16px;font-family:inherit;background:#fff}.search-box:focus{outline:2px solid var(--forest);outline-offset:1px}.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13.5px}thead{background:var(--paper-deep)}th{text-align:left;padding:12px 16px;font-weight:600;color:var(--ink-soft);border-bottom:1px solid var(--line);white-space:nowrap}td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink)}tr:last-child td{border-bottom:none}.cell-name{font-weight:600;white-space:nowrap}.cell-actions{display:flex;gap:6px;justify-content:flex-end}.empty-row{text-align:center;color:var(--ink-soft);padding:40px 16px}.row-inactive{opacity:.55}.status-active{background:#e4efe1;color:var(--forest-dark);border:none}.status-inactive{background:#f1e6e1;color:var(--danger);border:none}table select{border:1px solid var(--line);border-radius:6px;padding:5px 8px;font-size:12.5px;font-family:inherit;background:#fff}.date-picker,.class-select{padding:9px 12px;border:1px solid var(--line);border-radius:6px;font-size:13.5px;font-family:inherit;background:#fff}.chip-group{display:flex;gap:5px;flex-wrap:nowrap}.chip{border:1px solid var(--line);background:#fff;color:var(--ink-soft);border-radius:999px;padding:5px 12px;font-size:12px;font-family:inherit;white-space:nowrap}.chip:hover:not(:disabled){border-color:var(--forest);color:var(--forest)}.chip:disabled{opacity:.4;cursor:not-allowed}.chip-active{background:var(--forest);border-color:var(--forest);color:#fff}.memo-input{width:100%;min-width:120px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:12.5px;font-family:inherit}.memo-input:disabled{background:var(--paper-deep);color:var(--ink-soft)}.memo-input:focus{outline:2px solid var(--forest);outline-offset:1px}.compact-input{width:100%;min-width:80px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:12.5px;font-family:inherit}.compact-input:disabled{background:var(--paper-deep);color:var(--ink-soft)}.compact-input:focus{outline:2px solid var(--forest);outline-offset:1px}.textarea-input{width:100%;min-width:160px;min-height:56px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:12.5px;font-family:inherit;resize:vertical}.textarea-input:disabled{background:var(--paper-deep);color:var(--ink-soft)}.textarea-input:focus{outline:2px solid var(--forest);outline-offset:1px}.form-hint{font-size:12px;color:var(--ink-soft);background:var(--paper-deep);padding:10px 12px;border-radius:6px;margin:4px 0 0}.mode-toggle{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}.mode-toggle button{border:none;background:#fff;color:var(--ink-soft);padding:9px 16px;font-size:13px;font-family:inherit}.mode-toggle button.active{background:var(--forest);color:#fff;font-weight:600}.entry-controls{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:18px}.entry-controls label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--ink-soft)}.entry-controls input,.entry-controls select{padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-size:13.5px;font-family:inherit;min-width:130px}.entry-controls input:focus,.entry-controls select:focus{outline:2px solid var(--forest);outline-offset:1px}.entry-controls button{background:var(--forest);color:#fff;border:none;border-radius:6px;padding:9px 18px;font-size:13.5px;font-weight:600}.entry-controls button:hover{background:var(--forest-dark)}.entry-controls button:disabled{opacity:.6}.entry-actions{display:flex;align-items:center;gap:10px;margin-top:14px}.entry-actions button{background:var(--forest);color:#fff;border:none;border-radius:6px;padding:10px 20px;font-size:13.5px;font-weight:600}.entry-actions button:disabled{opacity:.6}.saved-hint{font-size:12.5px;color:var(--forest-dark)}.score-input{width:90px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:13px;font-family:inherit}.cell-pct{color:var(--ink-soft);font-size:12.5px}.empty-hint{color:var(--ink-soft);font-size:13.5px;padding:24px 0}.history-title{font-family:var(--font-display);font-size:16px;margin:24px 0 10px}.btn-ghost{background:transparent;border:1px solid var(--line);border-radius:6px;padding:8px 14px;font-size:13px;color:var(--ink)}.btn-ghost:hover{background:var(--paper-deep)}.btn-sm{padding:5px 10px;font-size:12px}.btn-danger{color:var(--danger);border-color:#b6462f66}.btn-danger:hover{background:#b6462f14}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#26241f73;display:flex;align-items:center;justify-content:center;padding:20px;z-index:10}.modal-card{width:100%;max-width:560px;max-height:90vh;overflow-y:auto;overflow-x:hidden;box-sizing:border-box;background:#fff;border-radius:var(--radius);padding:28px 32px 24px}.modal-card h2{font-family:var(--font-display);font-size:19px;margin:0 0 20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}.student-form label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--ink-soft);min-width:0}.student-form input,.student-form select,.student-form textarea{width:100%;box-sizing:border-boxß;padding:9px 11px;border:1px solid var(--line);border-radius:6px;font-size:13.5px;font-family:inherit;color:var(--ink)}.student-form input:focus,.student-form select:focus,.student-form textarea:focus{outline:2px solid var(--forest);outline-offset:1px}.class-add-row{display:flex;gap:6px}.class-add-row input{flex:1;min-width:0}.student-picker{margin-top:14px;border:1px solid var(--line);border-radius:8px;overflow:hidden}.student-picker-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;background:var(--paper-deep);border-bottom:1px solid var(--line);font-size:12.5px;color:var(--ink-soft)}.student-picker-head input{width:180px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:12.5px;font-family:inherit}.student-picker-list{max-height:220px;overflow-y:auto;padding:6px;display:grid;grid-template-columns:1fr 1fr;gap:2px}.student-picker-item{display:flex;align-items:center;gap:8px;padding:7px 9px;border-radius:6px;font-size:13px;cursor:pointer}.student-picker-item:hover{background:var(--paper-deep)}.student-picker-item small{color:var(--ink-soft);font-size:11.5px}.cell-students{font-size:12.5px;color:var(--ink-soft);max-width:260px}.memo-field{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--ink-soft);margin-top:14px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.modal-actions button[type=submit]{background:var(--forest);color:#fff;border:none;border-radius:6px;padding:9px 18px;font-size:13.5px;font-weight:600}.modal-actions button[type=submit]:hover{background:var(--forest-dark)}.modal-actions button[type=submit]:disabled{opacity:.6}@media (max-width: 640px){.form-grid{grid-template-columns:1fr}.app-header{padding:12px 16px}.app-main{padding:20px 14px 60px}}.division-tabs{display:flex;gap:6px;margin-bottom:14px}.division-tabs button{border:1px solid var(--line);background:#fff;color:var(--ink-soft);border-radius:999px;padding:8px 16px;font-size:13px;font-family:inherit;display:flex;align-items:center;gap:6px}.division-tabs button:hover{border-color:var(--forest);color:var(--forest)}.division-tabs button.active{background:var(--forest);border-color:var(--forest);color:#fff;font-weight:600}.division-count{font-size:11.5px;opacity:.75}