:root{--toss-bg:#F8F9FA;--toss-card:#FFFFFF;--toss-ink:#191F28;--toss-body:#333D4B;--toss-sub:#6B7684;--toss-faint:#8B95A1;--toss-line:#E5E8EB;--toss-line-light:#F2F4F6;--toss-segment-bg:#ECEFF2;--toss-yellow:#FFDE4D;--toss-yellow-hover:#F0CE35;--toss-yellow-shadow:#DBB820;--toss-yellow-light:#FFFBE6;--toss-green:#059669;--toss-green-bg:#ECFDF5;--toss-red:#E11D48;--toss-red-bg:#FFF0F2;--toss-blue:#3182F6;--toss-blue-bg:#E8F3FF;--radius-sm:10px;--radius-md:14px;--radius-lg:18px;--radius-xl:24px}body.admin-body{width:100%;min-height:100vh;margin:0;padding:0;background-color:var(--toss-bg);color:var(--toss-ink);font-family:'Pretendard Variable','Pretendard','Inter',-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo',system-ui,sans-serif;letter-spacing:-0.35px;font-feature-settings:'cv05','cv08','tnum';-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overflow-y:auto;overflow-x:hidden}.admin-layout{max-width:1120px;margin:0 auto;padding:24px 24px 80px}.admin-header{display:flex;align-items:center;justify-content:space-between;background:var(--toss-card);border-radius:var(--radius-xl);padding:16px 24px;box-shadow:0 4px 20px rgba(0,0,0,0.03);margin-bottom:20px;border:1px solid var(--toss-line)}.admin-header-left{display:flex;align-items:center;gap:12px}.admin-logo-img{width:42px;height:42px;object-fit:contain;filter:drop-shadow(0 2px 6px rgba(0,0,0,0.08))}.admin-title-main{font-size:19px;font-weight:900;color:var(--toss-ink);letter-spacing:-0.4px;display:flex;align-items:center;gap:8px}.admin-badge-live{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:800;color:var(--toss-green);background:var(--toss-green-bg);padding:3px 8px;border-radius:9999px}.admin-badge-live::before{content:'';width:6px;height:6px;border-radius:50%;background-color:var(--toss-green);animation:tossLivePulse 1.8s infinite}@keyframes tossLivePulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.4;transform:scale(0.7)}}.admin-title-sub{font-size:13px;color:var(--toss-sub);font-weight:600;margin-top:2px}.admin-header-right{display:flex;align-items:center;gap:10px}.btn-admin-link{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;background:var(--toss-blue);color:#FFFFFF;font-size:13.5px;font-weight:700;border-radius:var(--radius-md);text-decoration:none;box-shadow:0 4px 14px rgba(49,130,246,0.25);transition:all 0.15s cubic-bezier(0.16,1,0.3,1);border:none;cursor:pointer}.btn-admin-link:hover{background:#1B64DA;transform:translateY(-1px);box-shadow:0 6px 18px rgba(49,130,246,0.35)}.btn-admin-link:active{transform:scale(0.97)}.admin-nav-tabs-container{overflow-x:auto;padding-bottom:4px;margin-bottom:24px}.admin-nav-tabs-container::-webkit-scrollbar{display:none}.admin-nav-tabs{display:inline-flex;background:var(--toss-segment-bg);padding:4px;border-radius:var(--radius-md);gap:2px}.admin-tab-btn{display:flex;align-items:center;gap:6px;padding:10px 18px;background:transparent;border:none;border-radius:var(--radius-sm);font-size:14.5px;font-weight:700;color:var(--toss-sub);cursor:pointer;transition:all 0.18s cubic-bezier(0.16,1,0.3,1);white-space:nowrap}.admin-tab-btn:hover{color:var(--toss-ink)}.admin-tab-btn.active{background:var(--toss-card);color:var(--toss-ink);font-weight:800;box-shadow:0 2px 8px rgba(0,0,0,0.06)}.admin-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-bottom:24px}.admin-stat-card{background:var(--toss-card);border-radius:var(--radius-lg);padding:22px 24px;border:1px solid var(--toss-line);box-shadow:0 4px 16px rgba(0,0,0,0.02);transition:transform 0.15s ease,box-shadow 0.15s ease}.admin-stat-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.04)}.admin-stat-label{font-size:13.5px;font-weight:700;color:var(--toss-faint);margin-bottom:8px}.admin-stat-val{font-size:32px;font-weight:900;color:var(--toss-ink);letter-spacing:-0.6px;line-height:1.1}.admin-stat-sub{font-size:13px;font-weight:700;color:var(--toss-blue);margin-top:8px;display:flex;align-items:center;gap:4px}.admin-panel{background:var(--toss-card);border-radius:var(--radius-xl);padding:28px 30px;border:1px solid var(--toss-line);box-shadow:0 4px 20px rgba(0,0,0,0.02);margin-bottom:24px}.admin-panel-title{font-size:19px;font-weight:900;color:var(--toss-ink);letter-spacing:-0.3px;margin-bottom:4px}.admin-panel-desc{font-size:14px;color:var(--toss-sub);margin-bottom:22px;font-weight:600}.admin-toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:20px}.admin-select{padding:12px 18px;border-radius:var(--radius-md);border:1.5px solid var(--toss-line);background:var(--toss-card);font-size:14.5px;font-weight:700;color:var(--toss-ink);outline:none;cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,0.02);transition:border-color 0.15s ease}.admin-select:focus{border-color:var(--toss-yellow)}.admin-search-input{flex:1;min-width:240px;padding:12px 18px;border-radius:var(--radius-md);border:1.5px solid var(--toss-line);background:var(--toss-card);font-size:14.5px;font-weight:600;color:var(--toss-ink);outline:none;box-shadow:0 2px 6px rgba(0,0,0,0.02);transition:all 0.2s ease}.admin-search-input:focus{border-color:var(--toss-yellow);box-shadow:0 0 0 3px rgba(255,200,0,0.18)}.admin-search-input::placeholder{color:var(--toss-faint)}.admin-word-table-wrapper{max-height:520px;overflow-y:auto;border-radius:var(--radius-lg);border:1px solid var(--toss-line)}.admin-word-row{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--toss-line-light);background:var(--toss-card);transition:background 0.15s ease}.admin-word-row:last-child{border-bottom:none}.admin-word-row:hover{background:#F9FAFB}.admin-word-main{font-size:17px;font-weight:800;color:var(--toss-ink);letter-spacing:-0.2px}.admin-word-reading{font-size:13.5px;color:var(--toss-sub);margin-left:8px;font-weight:600}.admin-word-mean{font-size:14.5px;font-weight:800;color:var(--toss-blue);margin-top:3px}.admin-word-ex{font-size:13px;color:var(--toss-faint);margin-top:3px;font-weight:500}.admin-tts-btn{border:none;background:var(--toss-line-light);width:40px;height:40px;border-radius:var(--radius-sm);font-size:17px;cursor:pointer;display:grid;place-items:center;transition:all 0.15s ease}.admin-tts-btn:hover{background:var(--toss-yellow-light);transform:scale(1.05)}.admin-form-group{margin-bottom:18px}.admin-label{display:block;font-size:14px;font-weight:800;color:var(--toss-ink);margin-bottom:8px}.admin-input{width:100%;padding:14px 18px;border-radius:var(--radius-md);border:1.5px solid var(--toss-line);background:var(--toss-card);font-size:15px;font-weight:600;color:var(--toss-ink);outline:none;transition:all 0.2s ease}.admin-input:focus{border-color:var(--toss-yellow);box-shadow:0 0 0 3px rgba(255,200,0,0.18)}.admin-btn-action{padding:13px 24px;background:var(--toss-blue);color:#FFFFFF;font-size:14.5px;font-weight:700;border-radius:var(--radius-md);border:none;cursor:pointer;box-shadow:0 4px 14px rgba(49,130,246,0.25);transition:all 0.15s cubic-bezier(0.16,1,0.3,1)}.admin-btn-action:hover{background:#1B64DA;box-shadow:0 6px 18px rgba(49,130,246,0.35)}.admin-btn-action:active{transform:scale(0.97)}.admin-btn-secondary{padding:14px 24px;background:var(--toss-line-light);color:var(--toss-body);font-size:15px;font-weight:800;border-radius:var(--radius-md);border:1px solid var(--toss-line);cursor:pointer;transition:all 0.12s ease}.admin-btn-secondary:hover{background:#E5E8EB}.admin-btn-danger{padding:12px 20px;background:var(--toss-red-bg);color:var(--toss-red);font-size:14px;font-weight:800;border-radius:var(--radius-md);border:1px solid #FECDD3;cursor:pointer;transition:all 0.12s ease}.admin-btn-danger:hover{background:var(--toss-red);color:#FFFFFF}.admin-course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.admin-course-item{background:var(--toss-card);padding:18px 20px;border-radius:var(--radius-lg);border:1px solid var(--toss-line);box-shadow:0 2px 8px rgba(0,0,0,0.02);transition:transform 0.15s ease,border-color 0.15s ease}.admin-course-item:hover{transform:translateY(-2px);border-color:var(--toss-yellow)}.admin-trend-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:20px}.admin-trend-pills{display:inline-flex;background:var(--toss-segment-bg);padding:4px;border-radius:var(--radius-md);gap:4px}.admin-trend-pill{border:none;background:transparent;padding:8px 16px;border-radius:var(--radius-sm);font-size:13.5px;font-weight:700;color:var(--toss-sub);cursor:pointer;transition:all 0.15s ease}.admin-trend-pill:hover{color:var(--toss-ink)}.admin-trend-pill.active{background:#FFFFFF;color:var(--toss-blue);font-weight:800;box-shadow:0 2px 6px rgba(0,0,0,0.06)}.admin-trend-stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:24px}.admin-trend-stat-card{background:#FFFFFF;border:1px solid var(--toss-line);border-radius:var(--radius-lg);padding:18px 20px;display:flex;flex-direction:column;gap:6px;transition:transform 0.15s ease}.admin-trend-stat-card:hover{transform:translateY(-2px)}.admin-trend-stat-label{font-size:13px;font-weight:700;color:var(--toss-faint)}.admin-trend-stat-val{font-size:26px;font-weight:900;color:var(--toss-ink);letter-spacing:-0.4px;display:flex;align-items:baseline;gap:8px}.admin-trend-badge{font-size:11.5px;font-weight:800;padding:2px 7px;border-radius:9999px;display:inline-flex;align-items:center;gap:2px}.admin-trend-badge.up{background:#ECFDF5;color:#059669}.admin-trend-badge.blue{background:var(--toss-blue-bg);color:var(--toss-blue)}.admin-chart-card{background:#FFFFFF;border:1px solid var(--toss-line);border-radius:var(--radius-xl);padding:24px 26px 20px;margin-bottom:24px;box-shadow:0 4px 18px rgba(0,0,0,0.02);position:relative}.admin-chart-title-area{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:10px}.admin-chart-main-val{font-size:28px;font-weight:900;color:var(--toss-ink);letter-spacing:-0.5px}.admin-chart-main-sub{font-size:13px;color:var(--toss-sub);margin-top:3px;font-weight:600}.admin-chart-container{width:100%;height:260px;position:relative;overflow:visible}.admin-chart-svg{width:100%;height:100%;overflow:visible}.admin-chart-tooltip{position:absolute;pointer-events:none;background:rgba(25,31,40,0.94);color:#FFFFFF;padding:8px 12px;border-radius:10px;font-size:12.5px;font-weight:700;box-shadow:0 6px 18px rgba(0,0,0,0.18);white-space:nowrap;transform:translate(-50%,-120%);transition:opacity 0.15s ease,transform 0.15s ease;z-index:20;display:none}.admin-grid-2col{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:18px;margin-bottom:24px}.admin-subpanel{background:#FFFFFF;border:1px solid var(--toss-line);border-radius:var(--radius-xl);padding:22px 24px;box-shadow:0 4px 16px rgba(0,0,0,0.02)}.admin-subpanel-title{font-size:16.5px;font-weight:800;color:var(--toss-ink);margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}.admin-bar-item{margin-bottom:14px}.admin-bar-item:last-child{margin-bottom:0}.admin-bar-header{display:flex;justify-content:space-between;font-size:13.5px;font-weight:700;margin-bottom:6px}.admin-bar-name{color:var(--toss-body)}.admin-bar-val{color:var(--toss-ink);font-weight:800}.admin-progress-track{width:100%;height:8px;background:var(--toss-line-light);border-radius:9999px;overflow:hidden}.admin-progress-fill{height:100%;border-radius:9999px;transition:width 0.6s cubic-bezier(0.16,1,0.3,1)}.admin-progress-fill.blue{background:var(--toss-blue)}.admin-progress-fill.yellow{background:var(--toss-yellow)}.admin-progress-fill.green{background:var(--toss-green)}@media (max-width:680px){.admin-layout{padding:16px 14px 60px}.admin-header{flex-direction:column;align-items:flex-start;gap:14px;padding:16px 18px}.admin-header-right{width:100%;justify-content:flex-end}}