@import"https://cdn.jsdelivr.net/npm/font-kopubworld@1.0/dotum.min.css";:root{color-scheme:light;font-family:KoPubWorld Dotum,Noto Sans KR,Malgun Gothic,sans-serif;line-height:1.5;font-weight:400;color:#111a2d;background:radial-gradient(circle at top,#fffffff2,#eef2f7f0 30%,#e9eef5fa);--bg: #eef2f7;--surface: rgba(255, 255, 255, .92);--surface-soft: #f5f7fb;--surface-soft-strong: #edf1f6;--border: #d8e0eb;--border-strong: #c4cfde;--text-muted: #6d7f9c;--text-deep: #111a2d;--primary: #2f5aa0;--primary-deep: #244884;--primary-soft: #dfe7f3;--danger: #c55353;--shadow-soft: 0 14px 36px rgba(27, 47, 86, .08);--shadow-float: 0 18px 40px rgba(27, 47, 86, .12)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;background:var(--bg)}button,input,select{font:inherit}button{border:0}.app-root-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{height:78px;padding:0 48px;display:flex;align-items:center;justify-content:space-between;background:#ffffffeb;border-bottom:1px solid var(--border);box-shadow:0 4px 20px #1f33540d;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand-button,.topbar-link,.back-button,.table-action,.admin-primary-cta,.modal-cancel,.search-mode-button,.time-search-button{cursor:pointer}.brand-button{display:inline-flex;align-items:center;gap:14px;background:transparent;font-size:1.05rem;font-weight:800;color:#0f1730}.brand-icon{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--border);background:#fff;overflow:hidden;transition:transform .18s ease,border-color .18s ease}.brand-icon img{width:100%;height:100%;display:block;border-radius:inherit}.brand-button:hover .brand-icon{transform:translateY(-1px);border-color:var(--primary)}.topbar-actions{display:flex;align-items:center}.topbar-link{min-height:44px;padding:0 18px;border-radius:14px;background:transparent;color:var(--text-muted);font-weight:800;transition:background-color .18s ease,color .18s ease,border-color .18s ease}.topbar-link.admin-only:hover{background:#eff4fb;color:var(--primary)}.app-root-content{flex:1;max-width:1560px;width:100%;margin:0 auto;padding:64px 32px 48px}.top-notice{margin:0 auto 22px;width:fit-content;max-width:100%;padding:10px 16px;border-radius:999px;background:#dfe7f2e6;color:var(--primary);font-weight:700;text-align:center;box-shadow:0 8px 20px #2f5aa014;animation:fade-up .4s ease}.landing-hero{text-align:center;margin-bottom:44px;animation:fade-up .45s ease}.landing-hero h1{margin:0;font-size:clamp(2.8rem,5.2vw,4.6rem);line-height:1.04;letter-spacing:-.05em;color:var(--text-deep)}.landing-hero p{margin:18px 0 0;color:var(--text-muted);font-size:clamp(1.05rem,2vw,1.28rem)}.search-layout{display:grid;gap:34px;justify-items:center}.search-card{width:min(840px,100%);padding:14px;border:1px solid rgba(216,224,235,.88);border-radius:28px;background:#ffffffd1;box-shadow:var(--shadow-soft);animation:fade-up .55s ease}.search-mode-tabs{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:8px;border-radius:22px;background:var(--surface-soft-strong)}.search-mode-tabs:before{content:"";position:absolute;top:8px;bottom:8px;width:calc(33.333% - 10px);border-radius:18px;background:#fff;box-shadow:inset 0 0 0 1px var(--border-strong),0 10px 18px #1f335414;transition:transform .26s ease}.search-mode-tabs.mode-name:before{transform:translate(0)}.search-mode-tabs.mode-subject:before{transform:translate(calc(100% + 12px))}.search-mode-tabs.mode-time:before{transform:translate(calc(200% + 24px))}.search-mode-button{position:relative;z-index:1;min-height:54px;display:flex;align-items:center;justify-content:center;border-radius:18px;background:transparent;color:var(--text-muted);font-weight:800;line-height:1.25;text-wrap:balance;transition:color .18s ease,transform .18s ease}.search-mode-button.active{color:var(--primary)}.search-mode-button:hover{transform:translateY(-1px)}.search-panel{margin-top:20px;animation:fade-up .28s ease}.search-input-shell{display:flex;align-items:center;gap:14px;width:100%;min-height:72px;padding:0 22px;border-radius:22px;border:2px solid var(--border);background:var(--surface-soft);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease,background-color .18s ease}.search-input-shell:hover,.search-input-shell:focus-within,.teacher-card:hover{border-color:#9fb4d7;box-shadow:0 14px 28px #2f5aa01a;transform:translateY(-1px)}.search-input-shell input,.search-input-shell select{flex:1;border:0;background:transparent;outline:none;font-size:1rem;color:#17223b}.search-input-shell select{appearance:none;width:100%;height:100%;cursor:pointer;padding-right:28px}.search-icon{font-size:1.5rem;color:#6d8aba;line-height:1}.name-search-shell input::placeholder{color:#8b98ad}.time-search-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.subject-search-shell{max-width:420px}.select-shell{position:relative;cursor:pointer}.select-shell *{cursor:pointer}.select-shell:after{content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;border-right:2px solid #6d8aba;border-bottom:2px solid #6d8aba;transform:translateY(-65%) rotate(45deg);pointer-events:none;transition:transform .18s ease,border-color .18s ease}.select-shell:hover:after,.select-shell:focus-within:after{border-color:var(--primary);transform:translateY(-55%) rotate(45deg)}.time-search-button{grid-column:1 / -1;min-height:68px;border-radius:22px;background:#dfe7f2;color:var(--primary);font-weight:800;box-shadow:inset 0 0 0 1px #b7c6de;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background-color .18s ease}.time-search-button:hover{transform:translateY(-1px);background:#d4deec;box-shadow:inset 0 0 0 1px #97add0,0 12px 24px #2f5aa014}.status{margin:0;color:var(--text-muted)}.centered{text-align:center}.status.error{color:var(--danger)}.search-results{width:min(1480px,100%);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.teacher-card{padding:30px;border-radius:28px;background:#fffffff5;border:2px solid transparent;box-shadow:var(--shadow-soft);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background-color .2s ease;animation:fade-up .45s ease}.teacher-card-top{display:flex;justify-content:flex-start;align-items:flex-start;gap:18px}.teacher-name-row{display:flex;align-items:flex-end;gap:10px}.teacher-name-row h3{margin:0;font-size:2.2rem;line-height:1;letter-spacing:-.05em}.teacher-name-row span{color:var(--text-muted);font-size:1.05rem}.teacher-department{margin:12px 0 0;color:var(--primary);font-size:1.18rem}.teacher-subject-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.teacher-subject-tags span{display:inline-flex;align-items:center;min-height:34px;padding:0 14px;border-radius:14px;background:#eaf0f8;color:#334d7b;font-weight:700}.teacher-contact-strip{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px;padding:12px;border-radius:20px;background:#f4f7fb}.teacher-contact-item{display:inline-flex;align-items:center;gap:12px;min-height:54px;padding:0 12px;border-radius:16px;color:#1c2a44}.teacher-contact-icon{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#fff;color:var(--primary);box-shadow:0 2px 8px #1f335414}.teacher-hours-section{margin-top:24px}.teacher-hours-title{margin-bottom:14px;color:#2d4f88;font-size:1.05rem;font-weight:800}.teacher-hours-list{display:grid;gap:10px}.teacher-hours-row{display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:start}.teacher-hours-day{display:inline-flex;align-items:center;justify-content:center;min-height:32px;border-radius:10px;background:#eef3f9;color:var(--primary);font-weight:800}.teacher-hours-periods{color:var(--text-muted);font-size:1.06rem}.teacher-hours-empty{margin:0;color:var(--text-muted)}.empty-state{width:100%;text-align:center;color:var(--text-muted);padding:48px 16px 0}.empty-icon{width:96px;height:96px;margin:0 auto;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#e5ebf3;color:#94a3b8;font-size:2.8rem}.empty-state h3{margin:18px 0 10px;color:#0f1730;font-size:2rem}.empty-state p{margin:2px 0;font-size:1.15rem}.admin-login-view{min-height:calc(100vh - 220px);display:grid;align-items:center}.admin-login-shell{width:min(1120px,100%);margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch}.admin-login-panel,.admin-login-card,.admin-summary-card{animation:fade-up .4s ease}.admin-login-panel{padding:34px;border-radius:28px;border:1px solid var(--border);background:#ffffffd1;box-shadow:var(--shadow-soft);display:grid;align-content:space-between;gap:28px}.admin-login-header{text-align:center}.admin-login-icon{width:70px;height:70px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;border-radius:20px;background:#dfe6ef;color:var(--primary);font-size:2rem}.admin-login-header h2{margin:0;font-size:3rem}.admin-login-header p{margin:10px 0 0;color:var(--text-muted);font-size:1.2rem}.admin-login-card{width:100%;padding:32px;border-radius:28px;background:#fffffff2;border:1px solid var(--border);box-shadow:var(--shadow-float);display:grid;gap:20px;align-content:center}.admin-login-card-head h3{margin:0;font-size:1.6rem}.admin-login-card-head p{margin:8px 0 0;color:var(--text-muted)}.admin-login-highlights{display:grid;gap:14px}.admin-highlight-card{padding:18px 20px;border-radius:20px;background:linear-gradient(180deg,#f7f9fc,#edf2f8);border:1px solid #d9e2ef;display:grid;gap:6px}.admin-highlight-card strong{color:var(--primary);font-size:1.05rem}.admin-highlight-card span{color:var(--text-muted)}.modal-field{display:grid;gap:10px}.modal-field span{font-weight:800}.modal-field input{width:100%;min-height:58px;padding:14px 18px;border-radius:18px;border:2px solid var(--border);background:var(--surface-soft);outline:none;transition:border-color .18s ease,box-shadow .18s ease}.modal-field input:focus,.modal-field input:hover{border-color:#9fb4d7;box-shadow:0 12px 24px #2f5aa014}.admin-primary-cta,.table-action,.modal-cancel{transition:transform .14s ease,box-shadow .14s ease,border-color .14s ease}.admin-primary-cta:hover,.table-action:hover,.modal-cancel:hover{transform:translateY(-1px)}.admin-primary-cta{min-width:160px;min-height:54px;padding:0 24px;border-radius:18px;color:#fff;font-weight:800;background:linear-gradient(135deg,var(--primary),#4b73b1);box-shadow:0 10px 22px #2f5aa038}.admin-primary-cta.full{width:100%}.admin-primary-cta.slim{min-width:auto;padding-inline:20px}.admin-management-view{display:grid;gap:24px}.admin-management-hero{display:grid;gap:22px;padding:28px;border-radius:28px;background:#ffffffd6;border:1px solid var(--border);box-shadow:var(--shadow-soft)}.admin-management-topbar{display:flex;justify-content:space-between;align-items:center;gap:16px}.admin-management-title{display:flex;align-items:center;gap:14px}.admin-management-title h2{margin:0;font-size:2rem}.back-button{background:transparent;color:var(--text-muted);font-size:1rem;font-weight:800;transition:color .18s ease,transform .18s ease}.back-button:hover{color:var(--primary);transform:translate(-1px)}.admin-summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.admin-summary-card{padding:18px 20px;border-radius:22px;background:linear-gradient(180deg,#f8fbff,#eef3f9);border:1px solid #d8e2ef;display:grid;gap:8px}.admin-summary-card span{color:var(--text-muted);font-weight:700}.admin-summary-card strong{color:var(--text-deep);font-size:1.8rem;letter-spacing:-.04em}.admin-table-shell{border-radius:24px;overflow:hidden;border:1px solid var(--border);background:#fff;box-shadow:var(--shadow-soft)}.admin-table-head,.admin-table-row{display:grid;grid-template-columns:1.1fr 1.4fr 1.4fr 1.4fr .9fr;gap:18px;align-items:center}.admin-table-head{padding:20px 28px;background:#edf2f7;color:var(--text-muted);font-weight:800}.admin-table-row{padding:20px 28px;border-top:1px solid var(--border);transition:background-color .18s ease}.admin-table-row:hover{background:#f8fbff}.admin-cell{color:#12203c}.admin-cell p,.admin-cell span{margin:0}.admin-cell span{color:var(--text-muted)}.admin-cell.strong{font-weight:800}.admin-teacher-cell{display:grid;gap:4px}.admin-teacher-cell strong{font-size:1.05rem}.admin-actions-cell{display:flex;gap:10px;flex-wrap:wrap}.table-action{padding:10px 14px;border-radius:14px;background:#e6edf7;color:var(--primary);font-weight:700}.table-action.danger{background:#fae7e7;color:var(--danger)}.admin-empty-row{padding:60px 24px;text-align:center;color:var(--text-muted);font-size:1.12rem}.modal-backdrop{position:fixed;inset:0;background:#111a2d42;display:flex;align-items:center;justify-content:center;padding:24px}.admin-modal{width:min(840px,100%);max-height:calc(100vh - 48px);overflow:auto;border-radius:24px;border:1px solid var(--border);background:#fff;box-shadow:0 20px 40px #111a2d2e}.admin-modal-form{padding:30px;display:grid;gap:22px}.admin-modal-head{padding-bottom:4px;border-bottom:1px solid var(--border)}.admin-modal-head h3{margin:0;font-size:1.8rem}.admin-modal-head p{margin:8px 0 0;color:var(--text-muted)}.modal-grid{display:grid;gap:18px}.modal-grid.two-column{grid-template-columns:repeat(2,minmax(0,1fr))}.office-hour-panel{padding-top:8px;border-top:1px solid var(--border)}.office-hour-panel h3{margin:12px 0 20px;font-size:1.9rem}.office-hour-note{margin:-6px 0 18px;padding:14px 16px;border-radius:16px;background:#f4f7fb;border:1px solid #d9e2ef;color:var(--text-muted);line-height:1.6}.office-hour-table{display:grid;gap:0}.office-hour-header,.office-hour-row{display:grid;grid-template-columns:88px repeat(8,1fr);gap:14px;align-items:center}.office-hour-header{padding:12px 0;color:var(--text-muted);font-weight:800;border-bottom:1px solid var(--border)}.office-hour-row{padding:12px 0;border-bottom:1px solid var(--border)}.office-hour-row>span:first-child{font-weight:800}.office-hour-check{display:flex;justify-content:center;align-items:center}.office-hour-check input{display:none}.office-hour-check span{width:42px;height:42px;border-radius:14px;border:2px solid var(--border);background:var(--surface-soft);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}.office-hour-check:hover span{transform:translateY(-1px);border-color:#9fb4d7}.office-hour-check input:checked+span{background:linear-gradient(135deg,var(--primary),#4b73b1);border-color:var(--primary);box-shadow:inset 0 0 0 8px #fff}.modal-actions{display:flex;justify-content:flex-end;gap:16px;padding-top:8px}.modal-cancel{padding:16px 20px;border-radius:18px;background:transparent;color:#0f1730;font-weight:800}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media(max-width:1024px){.time-search-grid,.modal-grid.two-column,.teacher-contact-strip,.admin-login-shell,.admin-summary-grid,.search-results,.admin-table-head,.admin-table-row{grid-template-columns:1fr}}@media(max-width:720px){.topbar{height:auto;padding:14px 16px;align-items:center}.app-root-content{padding:24px 14px 28px}.landing-hero h1{max-width:8.5ch;margin-inline:auto;font-size:clamp(1.95rem,10.8vw,2.7rem);line-height:1.08;word-break:keep-all;text-wrap:balance}.landing-hero p{max-width:17ch;margin-inline:auto;margin-top:14px;font-size:.94rem;line-height:1.55;word-break:keep-all;text-wrap:balance}.brand-button{gap:10px;min-width:0;font-size:.94rem}.brand-button span:last-child{display:inline-block;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brand-icon{width:30px;height:30px;border-radius:9px}.topbar-link{min-height:40px;padding:0 12px;border-radius:12px;font-size:.92rem;white-space:nowrap}.search-layout{gap:24px}.search-card{padding:12px;border-radius:24px}.search-mode-tabs{grid-template-columns:1fr;grid-auto-rows:54px;gap:10px;padding:0;background:transparent}.search-mode-tabs:before{display:none}.search-mode-button{width:100%;height:100%;min-height:0;padding:0 14px;background:#e8eef6;border:1px solid var(--border);color:var(--text-muted);box-shadow:none}.search-mode-button.active{background:#fff;border-color:#b8c8de;box-shadow:inset 0 0 0 1px #b8c8de73}.search-panel{margin-top:14px}.search-input-shell{min-height:64px;padding:0 18px;border-radius:20px}.subject-search-shell{max-width:none}.time-search-grid{grid-template-columns:1fr}.teacher-card{padding:22px 18px;border-radius:24px}.teacher-name-row{align-items:baseline;flex-wrap:wrap;gap:8px}.teacher-name-row h3,.admin-management-title h2,.admin-login-header h2{font-size:1.65rem}.admin-management-hero,.admin-login-panel,.admin-login-card{padding:22px}.teacher-card-top{align-items:flex-start;gap:14px}.teacher-department{margin-top:10px;font-size:1rem}.teacher-subject-tags{margin-top:16px;gap:8px}.teacher-subject-tags span{min-height:30px;padding:0 10px;font-size:.9rem}.teacher-contact-strip{margin-top:18px;padding:10px}.teacher-contact-item{min-height:46px;padding:0 10px;font-size:.94rem;word-break:break-all}.teacher-hours-section{margin-top:18px}.teacher-hours-periods{font-size:.96rem}.office-hour-header,.office-hour-row{grid-template-columns:60px repeat(4,1fr)}.office-hour-header span:nth-child(n+6),.office-hour-row label:nth-child(n+6){display:none}}