:root{--bg:#f5f7fb;--card:#fff;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--blue:#2563eb;--red:#dc2626;--green:#16a34a;--amber:#f59e0b}*{box-sizing:border-box}body{margin:0;font-family:Arial,'Noto Sans KR',sans-serif;background:var(--bg);color:var(--ink)}a{text-decoration:none;color:inherit}.topbar{height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:10}.brand{font-weight:800}.layout{display:flex;min-height:calc(100vh - 64px)}.sidebar{width:260px;background:#111827;color:#d1d5db;padding:14px 12px 24px;overflow-y:auto;max-height:calc(100vh - 64px);position:sticky;top:64px}.sidebar h3{margin:0 0 12px;font-size:13px;text-transform:uppercase;letter-spacing:.5px;color:#9ca3af;padding:0 8px}.sidebar a{display:block;padding:9px 12px;border-radius:8px;margin-bottom:2px;font-size:13px}.sidebar a:hover,.sidebar .active{background:#1f2937;color:#fff}.sidebar-group{margin-bottom:14px}.sidebar-label{font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:#6b7280;padding:8px 12px 4px}.admin-stat-card{cursor:pointer;transition:box-shadow .15s,border-color .15s}.admin-stat-card:hover{border-color:var(--blue);box-shadow:0 8px 20px rgba(37,99,235,.1)}.admin-quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.admin-quick-grid a{padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:#f9fafb;font-size:13px;font-weight:700}.admin-quick-grid a:hover{background:#eff6ff;border-color:#bfdbfe;color:var(--blue)}.status-badge{display:inline-block;padding:3px 8px;border-radius:999px;font-size:11px;font-weight:800;text-transform:lowercase}.status-badge.green{background:#dcfce7;color:#166534}.status-badge.amber{background:#fef3c7;color:#92400e}.status-badge.red{background:#fee2e2;color:#991b1b}.status-badge.blue{background:#dbeafe;color:#1e40af}.status-badge.muted{background:#f3f4f6;color:#6b7280}.sidebar hr{border:0;border-top:1px solid #374151}.content{flex:1;padding:24px}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(15,23,42,.05)}.stat{font-size:30px;font-weight:800}.muted{color:var(--muted)}.btn{border:0;background:var(--blue);color:#fff;padding:11px 16px;border-radius:10px;font-weight:700;display:inline-block;cursor:pointer}.btn.secondary{background:#e5e7eb;color:#111827}.btn.red{background:var(--red)}.btn.green{background:var(--green)}.pill{padding:5px 10px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-size:12px;font-weight:700}table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}th{background:#f9fafb}.form-row{display:grid;grid-template-columns:160px 1fr;gap:12px;margin-bottom:12px;align-items:center}input,select,textarea{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px;background:#fff}textarea{min-height:120px}.exam-shell{height:calc(100vh - 64px);display:grid;grid-template-rows:auto 1fr auto}.exam-header{background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:12px 20px}.timer{font-size:22px;font-weight:900}.exam-body{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:16px;overflow:hidden}.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;overflow:auto}.answer-nav{display:flex;gap:8px;flex-wrap:wrap}.qnum{width:34px;height:34px;border:1px solid var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center;background:#fff}.qnum.done{background:#dcfce7;border-color:#86efac}.qnum.flag{background:#fef3c7;border-color:#fcd34d}.exam-footer{background:#fff;border-top:1px solid var(--line);padding:12px 20px;display:flex;justify-content:space-between}.warning{border-left:5px solid var(--red);background:#fff5f5}.rubric{display:grid;grid-template-columns:1fr 100px;gap:10px;align-items:center}.progress{height:10px;background:#e5e7eb;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:var(--blue)}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.score{font-size:34px;font-weight:800;color:var(--ink)}.split-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.table{width:100%;border-collapse:collapse;background:#fff}.table th,.table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.table th{background:#f9fafb}.badge{display:inline-block;padding:5px 9px;border-radius:20px;background:#eff6ff;color:#1d4ed8;font-size:12px;font-weight:700;margin:2px 4px 2px 0}.btn-sm{padding:7px 12px;font-size:13px}.login-wrap{max-width:1100px;margin:0 auto}code{background:#f3f4f6;padding:2px 6px;border-radius:4px;font-size:13px}.notice{background:#edf7ff;border-left:4px solid var(--blue);padding:12px;margin:12px 0;border-radius:0 8px 8px 0}.exam-main{display:grid;grid-template-columns:1fr 1fr;min-height:0;background:#fff}.pane{padding:20px;overflow:auto;border-right:1px solid var(--line)}.pane:last-child{border-right:0}.passage{font-size:16px;line-height:1.72}.form label{display:block;margin-top:8px;font-weight:600;font-size:14px}.form input,.form select,.form textarea{margin:6px 0 12px}.menu a{display:inline-block;padding:10px 14px;border-radius:8px;color:#334155;margin:4px 8px 4px 0;background:#fff;border:1px solid var(--line)}.menu a.active,.menu a:hover{background:#eff6ff;color:var(--blue);font-weight:700;border-color:#bfdbfe}.answer-input{border:1px solid var(--line);border-radius:8px;padding:8px;width:100%}.audio-panel{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:14px;margin:12px 0}.writing-area{width:100%;min-height:160px;border:1px solid var(--line);padding:14px;font-size:16px;line-height:1.55;border-radius:10px}.mic{width:88px;height:88px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:36px;margin:16px auto;cursor:pointer}.recording{background:var(--red)!important}
body.exam-mode .topbar{background:#0f172a;color:#fff;border-color:#1e293b}
body.exam-mode .topbar .pill{background:#1e293b;color:#93c5fd}
body.exam-mode .topbar .btn.secondary{background:#334155;color:#fff}
.exam-header-left,.exam-header-right{display:flex;align-items:center;gap:12px}
.exam-session-pill{font-size:11px}
.security-score{font-size:13px;color:var(--muted);margin-right:12px}
.timer-warn{color:var(--red)!important;animation:timerPulse 1s infinite}
@keyframes timerPulse{50%{opacity:.5}}
.security-banner{background:#fef3c7;border-bottom:2px solid var(--amber);padding:10px 20px;font-size:14px}
.security-log-panel{max-height:80px;overflow-y:auto;background:#f8fafc;border-bottom:1px solid var(--line);padding:6px 20px;font-size:12px}
.sec-event{padding:2px 0;border-bottom:1px solid var(--line)}
.sec-high,.sec-critical{color:var(--red)}
.sec-medium{color:var(--amber)}
.exam-protected{user-select:none;-webkit-user-select:none}
.exam-protected input,.exam-protected textarea,.exam-protected select{user-select:text;-webkit-user-select:text}
.exam-question{margin:16px 0;padding:12px 0;border-bottom:1px solid var(--line)}
.exam-question:last-child{border-bottom:0}
.q-label{margin-bottom:8px;font-weight:600;line-height:1.5}
.q-no{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:6px;background:var(--blue);color:#fff;font-size:13px;margin-right:6px}
.essay-area{min-height:200px;font-size:15px;line-height:1.6}
.exam-listening-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:16px;padding:16px;overflow:hidden}
.exam-footer-actions{display:flex;gap:10px;align-items:center}
.exam-speaking{padding:16px;overflow:auto}
.security-rules li{margin:8px 0;line-height:1.5}
.instruction{font-style:italic;color:var(--muted);margin-bottom:12px}
.writing-task{margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.report-q-table{font-size:13px}
.q-row-correct{background:#f0fdf4}
.q-row-incorrect{background:#fff5f5}
.q-row-unanswered{background:#fafafa}
.sec-event-list{font-size:13px;color:var(--muted);padding-left:18px;margin:8px 0 0}
.exam-audio-el{display:none}
.audio-panel{margin:12px 0 20px}
.device-card-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.device-card-head h2{margin:0}
.device-icon-wrap{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:12px;padding:10px}
.device-icon-speaker{background:#eff6ff;color:var(--blue)}
.device-icon-mic{background:#fef2f2;color:var(--red)}
.device-icon-speaker-sm,.device-icon-mic-sm{display:inline-flex;margin-right:6px;vertical-align:middle}
.device-btn{display:inline-flex;align-items:center;gap:4px}
.device-hint{font-size:13px;color:var(--muted);margin:10px 0 0}
.device-progress{margin-top:12px}
.device-notice{margin-bottom:16px;background:#fffbeb;border-color:var(--amber)}
.device-ok{color:var(--green);font-weight:700}
.device-warn{color:var(--red)}
/* ── Listening exam (OneIELTS style) ── */
body.exam-mode:has(.oneielts-style) .topbar{display:none}
.listening-exam.oneielts-style{height:100vh;display:flex;flex-direction:column;background:#fff;overflow:hidden;font-family:Arial,'Helvetica Neue',sans-serif}
.oielts-head{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:#fff;flex-shrink:0}
.oielts-head-left{display:flex;align-items:baseline;gap:16px}
.oielts-brand{font-weight:800;font-size:15px;color:#111}
.oielts-test-title{font-size:15px;color:#333}
.oielts-head-center{display:flex;align-items:center;gap:20px;font-size:14px;color:#444}
.oielts-timer-label{font-weight:600}
.oielts-audio-status{display:inline-flex;align-items:center;gap:6px;color:#555}
.oielts-head-right{display:flex;align-items:center;gap:14px}
.oielts-sec{font-size:12px}
.oielts-submit{background:#e91e63!important;border:0;color:#fff;padding:10px 22px;border-radius:6px;font-weight:700;cursor:pointer;font-size:14px}
.oielts-head-divider{height:1px;background:#ccc;flex-shrink:0}
.oielts-body{flex:1;min-height:0;overflow:hidden;position:relative}
.oielts-part-panel{height:100%;display:flex;flex-direction:column;overflow:hidden}
.oielts-part-header{background:#f0f0f0;border:1px solid #ddd;border-radius:6px;margin:16px 24px 0;padding:14px 18px;line-height:1.5;flex-shrink:0}
.oielts-part-header strong{display:block;font-size:15px;margin-bottom:4px}
.oielts-part-header span{font-size:14px;color:#333}
.oielts-part-content{flex:1;overflow:auto;padding:16px 24px 80px}
.oielts-instruction{font-size:14px;color:#333;margin:0 0 12px;line-height:1.5}
.oielts-q-range{margin:0 0 8px;font-size:14px}
.oielts-note-card{border:1px solid #ddd;border-radius:6px;padding:20px 24px;background:#fff;margin-top:8px}
.oielts-note-card h3{margin:0 0 12px;font-size:16px;font-weight:700}
.oielts-example{margin:0 0 16px;font-size:14px;color:#555}
.listening-inline-q{margin:12px 0;line-height:2;font-size:15px}
.listening-inline-input{border:1px solid #7eb8e8;border-radius:3px;padding:6px 10px;font-size:14px;min-width:140px;max-width:220px;background:#fff}
.listening-inline-input:focus{outline:2px solid #2563eb;outline-offset:1px}
.listening-q-badge{display:inline-grid;place-items:center;min-width:26px;height:26px;padding:0 4px;border:2px solid transparent;border-radius:4px;font-weight:700;font-size:14px;margin-right:8px}
.listening-q-badge.active{border-color:#2563eb;color:#2563eb}
.listening-mc-q{margin:20px 0;padding-bottom:16px;border-bottom:1px solid #eee}
.listening-mc-q.listening-q-active .listening-q-badge.active{border-color:#2563eb;background:#eff6ff}
.listening-mc-prompt{font-size:15px;line-height:1.5;margin:0 0 10px;display:flex;align-items:flex-start;gap:4px}
.listening-mc-options{margin-left:34px}
.listening-mc-option{display:block;padding:10px 12px;margin:4px 0;border-radius:4px;cursor:pointer;font-size:14px;line-height:1.4}
.listening-mc-option input{margin-right:10px;vertical-align:middle}
.listening-mc-option.selected{background:#e8f0fe}
.listening-mc-option:hover{background:#f5f5f5}
.oielts-note-list{margin:0;padding-left:20px;list-style:disc}
.listening-note-item{margin:10px 0;line-height:2;font-size:15px}
.listening-summary-line{margin:14px 0;line-height:2;font-size:15px;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.listening-q-active .listening-inline-input{outline:2px solid #2563eb;outline-offset:1px}
.oielts-float-nav{position:absolute;bottom:24px;right:24px;display:flex;gap:8px;z-index:5}
.oielts-nav-btn{width:44px;height:44px;border:0;background:#222;color:#fff;font-size:18px;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.oielts-nav-btn:hover{background:#444}
.oielts-part-bar{display:flex;border-top:1px solid #bbb;background:#fff;flex-shrink:0;min-height:56px}
.oielts-part-tab{flex:1;border-right:1px solid #ddd;padding:8px 12px;display:flex;flex-direction:column;justify-content:center;gap:4px}
.oielts-part-tab:last-child{border-right:0}
.oielts-part-tab.active{background:#fafafa}
.oielts-part-tab-btn{background:0;border:0;padding:0;cursor:pointer;text-align:left;font-family:inherit;display:flex;align-items:baseline;gap:8px}
.oielts-part-tab-label{font-size:13px;color:#333}
.oielts-part-tab.active .oielts-part-tab-label{font-weight:800;text-decoration:underline;text-underline-offset:3px}
.oielts-part-tab-count{font-size:12px;color:#666}
.oielts-part-qnums{display:flex;flex-wrap:wrap;gap:2px;margin-top:4px;padding-top:4px;border-top:2px solid #16a34a}
.oielts-qnum{min-width:28px;height:26px;border:1px solid #ccc;background:#fff;font-size:12px;cursor:pointer;padding:0 4px;font-family:inherit;border-radius:2px}
.oielts-qnum.current{border:2px solid #2563eb;font-weight:700;color:#2563eb}
.oielts-qnum.done{background:#dcfce7;border-color:#86efac}
@media(max-width:768px){.oielts-head{flex-wrap:wrap;gap:8px;padding:10px 14px}.oielts-part-content{padding:12px 14px 70px}.oielts-part-header{margin:10px 14px 0}.oielts-part-bar{overflow-x:auto}.oielts-part-tab{min-width:120px}}
/* ── Reading exam (OneIELTS split-pane) ── */
.reading-exam.oneielts-style{height:100vh;display:flex;flex-direction:column;background:#fff;overflow:hidden}
.reading-body{flex:1;min-height:0;overflow:hidden}
.reading-part-panel{height:100%;display:flex;flex-direction:column;overflow:hidden}
.reading-part-header{margin:12px 24px 0;flex-shrink:0}
.oielts-split-view{display:flex;flex:1;min-height:0;margin:12px 24px 0;border:1px solid #ddd;border-radius:4px;overflow:hidden;--passage-width:50%}
.oielts-passage-pane{width:var(--passage-width);min-width:200px;overflow-y:auto;padding:20px 24px;background:#fff;flex-shrink:0}
.oielts-passage-title{font-size:20px;font-weight:700;margin:0 0 16px;line-height:1.3;font-family:Georgia,'Times New Roman',serif}
.oielts-para{font-size:15px;line-height:1.75;margin:0 0 16px;color:#222}
.oielts-para strong{display:inline-block;min-width:1.2em;margin-right:6px;font-size:16px}
.oielts-split-handle{width:10px;flex-shrink:0;background:#f0f0f0;border-left:1px solid #ddd;border-right:1px solid #ddd;cursor:col-resize;display:flex;align-items:center;justify-content:center;font-size:11px;color:#888;user-select:none}
.oielts-split-handle:hover{background:#e5e5e5}
.oielts-questions-pane{flex:1;min-width:200px;overflow-y:auto;padding:20px 24px 72px;position:relative;background:#fff}
.reading-q-group{margin-bottom:28px;padding-bottom:8px;border-bottom:1px solid #eee}
.reading-q-group:last-child{border-bottom:0}
.reading-group-instruction{margin-bottom:16px}
.reading-q-block{margin:18px 0;padding-bottom:14px;border-bottom:1px solid #f0f0f0}
.reading-q-block:last-child{border-bottom:0}
.reading-q-prompt{font-size:15px;line-height:1.55;margin:0 0 10px;display:flex;align-items:flex-start;gap:4px}
.reading-q-badge{display:inline-grid;place-items:center;min-width:26px;height:26px;padding:0 4px;border:2px solid transparent;border-radius:4px;font-weight:700;font-size:14px;margin-right:6px;flex-shrink:0}
.reading-q-badge.active{border-color:#2563eb;color:#2563eb;background:#eff6ff}
.reading-q-active .reading-q-badge.active{border-color:#2563eb;background:#eff6ff}
.reading-tfng-options,.reading-mc-options{margin-left:4px}
.reading-option-row{display:block;padding:10px 12px;margin:3px 0;border-radius:4px;cursor:pointer;font-size:14px;line-height:1.4}
.reading-option-row input{margin-right:10px;vertical-align:middle}
.reading-option-row.selected{background:#e8f0fe}
.reading-option-row:hover{background:#f5f5f5}
.reading-fill{margin:14px 0;line-height:2;font-size:15px;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.reading-inline-input{border:1px solid #7eb8e8;border-radius:3px;padding:6px 10px;font-size:14px;min-width:120px;max-width:200px;background:#fff}
.reading-inline-input:focus,.reading-q-active .reading-inline-input{outline:2px solid #2563eb;outline-offset:1px}
.reading-float-nav{position:sticky;bottom:12px;float:right;margin-top:16px}
@media(max-width:900px){.oielts-split-view{flex-direction:column;margin:8px 12px 0;--passage-width:100%}.oielts-passage-pane{width:100%;max-height:40vh;border-bottom:1px solid #ddd}.oielts-split-handle{display:none}.oielts-questions-pane{flex:1}}
/* ── Writing exam (OneIELTS split-pane) ── */
.writing-exam.oneielts-style{height:100vh;display:flex;flex-direction:column;background:#fff;overflow:hidden}
.writing-body{flex:1;min-height:0;overflow:hidden}
.writing-part-panel{height:100%;display:flex;flex-direction:column;overflow:hidden}
.writing-part-header{margin:12px 24px 0;flex-shrink:0}
.writing-split{flex:1;min-height:0;margin:12px 24px 0}
.writing-prompt-pane{background:#fff}
.writing-prompt-content{font-size:15px;line-height:1.7;color:#222}
.writing-prompt-para{margin:0 0 14px}
.writing-editor-pane{flex:1;min-width:240px;display:flex;flex-direction:column;padding:16px 20px;background:#fff;position:relative}
.writing-textarea{flex:1;width:100%;min-height:200px;border:1px solid #ccc;border-radius:4px;padding:16px;font-size:15px;line-height:1.6;resize:none;font-family:Arial,'Helvetica Neue',sans-serif}
.writing-textarea:focus{outline:2px solid #2563eb;outline-offset:0;border-color:#2563eb}
.writing-word-count{text-align:right;font-size:13px;color:#555;margin-top:8px;padding-right:4px}
.writing-word-count b{font-size:15px;color:#111}
.writing-min-hint{margin-left:6px;color:#888;font-size:12px}
.writing-min-hint.writing-min-met{color:var(--green);font-weight:600}
.writing-float-nav{position:absolute;bottom:16px;right:16px;display:flex;gap:8px}
@media(max-width:900px){.writing-split{margin:8px 12px 0}.writing-part-header{margin:8px 12px 0}.writing-editor-pane{padding:12px}}
/* ── Device test (OneIELTS) ── */
body:has(.oneielts-device-page) .topbar{display:none}
.oneielts-device-page{min-height:100vh;background:#f3f4f6;display:flex;flex-direction:column}
.oielts-device-head{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;background:#fff;border-bottom:1px solid #e5e7eb}
.oielts-exit-link{font-size:14px;color:#555;text-decoration:none;padding:8px 16px;border:1px solid #ddd;border-radius:6px}
.oielts-exit-link:hover{background:#f9fafb}
.oielts-device-main{flex:1;display:flex;align-items:center;justify-content:center;padding:32px 16px}
.oielts-device-card{background:#fff;border-radius:16px;box-shadow:0 8px 32px rgba(0,0,0,.08);padding:40px 48px;max-width:720px;width:100%}
.oielts-device-title{margin:0 0 6px;font-size:28px;font-weight:700;text-align:center}
.oielts-device-sub{margin:0 0 32px;text-align:center;color:#666;font-size:15px}
.oielts-device-notice{background:#fffbeb;border:1px solid #fcd34d;border-radius:8px;padding:12px;margin-bottom:20px;font-size:13px}
.oielts-device-steps{list-style:none;margin:0;padding:0}
.oielts-device-step{display:flex;gap:16px;margin-bottom:28px;position:relative}
.oielts-device-step:not(:last-child)::before{content:'';position:absolute;left:11px;top:28px;bottom:-28px;width:2px;background:#e5e7eb}
.oielts-step-marker{width:24px;height:24px;border-radius:50%;border:2px solid #d1d5db;background:#fff;flex-shrink:0;margin-top:4px;position:relative;z-index:1}
.oielts-step-marker.active{border-color:#e91e63;background:#fce4ec}
.oielts-step-marker.done{border-color:#16a34a;background:#16a34a;box-shadow:inset 0 0 0 3px #fff}
.oielts-step-body{flex:1;border:1px solid #e5e7eb;border-radius:12px;padding:20px 24px}
.oielts-step-body h2{margin:0 0 6px;font-size:16px}
.oielts-step-body p{margin:0 0 16px;color:#666;font-size:14px;line-height:1.5}
.oielts-step-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.oielts-pink-btn{display:inline-flex;align-items:center;gap:8px;background:#e91e63;color:#fff;border:0;padding:10px 20px;border-radius:999px;font-weight:600;font-size:14px;cursor:pointer}
.oielts-pink-btn-light{background:#fce4ec;color:#e91e63}
.oielts-pink-btn:hover{opacity:.92}
.oielts-audio-progress-wrap{flex:1;min-width:160px;display:flex;align-items:center;gap:10px}
.oielts-audio-progress{flex:1;height:4px;background:#fce4ec;border-radius:999px;overflow:hidden}
.oielts-audio-progress span{display:block;height:100%;background:#e91e63;transition:width .1s linear}
.oielts-audio-time{font-size:13px;color:#666;min-width:40px}
.oielts-mic-wave{display:flex;align-items:center;gap:3px;flex:1;min-width:120px;height:24px}
.oielts-mic-wave span{display:block;width:4px;height:4px;border-radius:50%;background:#f9a8d4}
.oielts-mic-wave.recording span{animation:speakWave 1s ease-in-out infinite}
.oielts-mic-wave.recording span:nth-child(odd){animation-delay:.15s}
@keyframes speakWave{50%{height:16px;background:#e91e63}}
.oielts-step-status{font-size:13px;color:#666;margin:10px 0 0}
.oielts-step-skip{font-size:13px;margin:8px 0 0}
.oielts-device-footer{text-align:center;margin-top:8px}
.oielts-ready-btn{background:#e91e63;color:#fff;border:0;padding:14px 48px;border-radius:999px;font-size:16px;font-weight:700;cursor:pointer}
.oielts-ready-btn:disabled{background:#f9a8d4;cursor:not-allowed}
.oielts-device-hint{font-size:13px;color:#888;margin:10px 0 0}
/* ── Speaking exam (OneIELTS) ── */
.speaking-exam.oneielts-style{height:100vh;display:flex;flex-direction:column;background:#f3f4f6;overflow:hidden}
.speaking-body{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;overflow:auto}
.speaking-card-panel{width:100%;max-width:720px}
.speaking-card{background:#fff;border-radius:12px;box-shadow:0 4px 24px rgba(0,0,0,.08);padding:28px 32px 24px}
.speaking-part-title{text-align:center;margin:0 0 20px;font-size:18px;font-weight:700}
.speaking-examiner-wrap{position:relative;margin-bottom:20px;border-radius:8px;overflow:hidden}
.speaking-examiner{aspect-ratio:16/9;background:#1a1a2e;position:relative}
.speaking-examiner-bg{position:absolute;inset:0;background:linear-gradient(135deg,#2d2d44 0%,#1a1a2e 50%,#0f0f1a 100%),repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 2px,transparent 2px 12px);background-blend-mode:overlay}
.speaking-examiner-bg::after{content:'';position:absolute;bottom:20%;left:50%;transform:translateX(-50%);width:80px;height:80px;border-radius:50%;background:radial-gradient(circle,#4a5568 0%,#2d3748 100%);box-shadow:0 0 0 8px rgba(0,0,0,.3)}
.speaking-think-badge{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;align-items:center;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.15);font-size:13px}
.speaking-think-badge>span:first-child{padding:8px 12px;color:#333}
.speaking-think-count{background:#f97316;color:#fff;padding:8px 12px;font-weight:600;display:flex;align-items:center;gap:4px}
.speaking-question{text-align:center;font-size:16px;line-height:1.55;margin:0 0 24px;color:#222;padding:0 8px}
.speaking-controls{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:12px;border-top:1px solid #eee;padding-top:20px;position:relative}
.speaking-status-left{display:flex;align-items:center;gap:8px;font-size:14px;color:#555;grid-column:1}
.speaking-status-dot{width:10px;height:10px;border-radius:50%;background:#ccc}
.speaking-status-dot.asking{background:#eab308}
.speaking-status-dot.thinking{background:#f97316}
.speaking-rec-center{grid-column:2;display:flex;flex-direction:column;align-items:center;position:relative;top:-28px}
.speaking-rec-btn{width:72px;height:72px;border-radius:50%;background:#e91e63;border:4px solid #fff;box-shadow:0 4px 16px rgba(233,30,99,.35);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s}
.speaking-rec-btn:not(:disabled):hover{transform:scale(1.05)}
.speaking-rec-btn:disabled{background:#d1d5db;box-shadow:none;cursor:not-allowed}
.speaking-rec-btn.recording{background:#c2185b;animation:speakPulse 1.2s infinite}
@keyframes speakPulse{50%{box-shadow:0 0 0 8px rgba(233,30,99,.25)}}
.speaking-rec-hint{margin:8px 0 0;font-size:13px;color:#888;text-align:center}
.speaking-timer-box{grid-column:1;display:flex;align-items:center;gap:6px;border:1px solid #fca5a5;color:#dc2626;padding:6px 10px;border-radius:6px;font-size:14px;font-weight:600}
.speaking-next-btn{grid-column:3;justify-self:end;background:#e5e7eb;color:#9ca3af;border:0;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}
.speaking-next-btn:not(:disabled){background:#374151;color:#fff;cursor:pointer}
.speaking-part-bar{flex-shrink:0}
@media(max-width:640px){.oielts-device-card{padding:24px 20px}.speaking-card{padding:20px 16px}.speaking-rec-btn{width:60px;height:60px}}
/* ── Exam exit modal (OneIELTS) ── */
body.exam-exit-open{overflow:hidden}
.exam-exit-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:10000;display:flex;align-items:center;justify-content:center;padding:20px}
.exam-exit-overlay[hidden]{display:none!important}
.exam-exit-modal{background:#fff;border-radius:12px;padding:32px 28px 24px;max-width:420px;width:100%;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.exam-exit-icon{width:56px;height:56px;border-radius:50%;background:#facc15;color:#fff;font-size:28px;font-weight:700;line-height:56px;margin:0 auto 20px}
.exam-exit-title{margin:0 0 12px;font-size:20px;font-weight:700;color:#111}
.exam-exit-msg{margin:0 0 24px;font-size:14px;line-height:1.55;color:#6b7280}
.exam-exit-actions{display:flex;gap:12px}
.exam-exit-cancel,.exam-exit-confirm{flex:1;padding:12px 16px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit}
.exam-exit-cancel{background:#fff;border:1px solid #d1d5db;color:#374151}
.exam-exit-cancel:hover{background:#f9fafb}
.exam-exit-confirm{background:#e91e63;border:0;color:#fff}
.exam-exit-confirm:hover{background:#d81b60}

/* Admin CRUD forms */
.page-header-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.page-actions{display:flex;gap:8px;flex-shrink:0}
.admin-form-grid{display:grid;grid-template-columns:160px 1fr;gap:10px 16px;align-items:center;max-width:720px}
.admin-form-grid label{font-size:13px;font-weight:600;color:var(--muted);margin:0}
.admin-form-grid input,.admin-form-grid select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.admin-form-grid .form-actions{display:flex;gap:8px;margin-top:8px}
.admin-form-grid .span-2{grid-column:1/-1}

/* Course assign modal */
body.admin-modal-open{overflow:hidden}
.admin-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:10000;display:flex;align-items:center;justify-content:center;padding:20px}
.admin-modal-overlay[hidden]{display:none!important}
.admin-modal{background:#fff;border-radius:12px;max-width:520px;width:100%;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.admin-modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.admin-modal-header h2{margin:0;font-size:18px}
.admin-modal-close{background:none;border:0;font-size:24px;line-height:1;cursor:pointer;color:var(--muted);padding:0 4px}
.admin-modal-body{padding:16px 20px;overflow-y:auto}
.admin-modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px 16px;border-top:1px solid var(--line)}
.modal-label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:6px}
#course-assign-search{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;margin-bottom:8px}
.course-assign-results{list-style:none;margin:0;padding:0;max-height:200px;overflow-y:auto;border:1px solid var(--line);border-radius:8px}
.course-assign-result-item{padding:10px 12px;border-bottom:1px solid var(--line);cursor:pointer;font-size:13px}
.course-assign-result-item:last-child{border-bottom:0}
.course-assign-result-item:hover{background:#f3f4f6}
.course-assign-selected{background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;padding:10px 12px;margin-bottom:12px;font-size:13px}
.btn-link{background:none;border:0;color:var(--blue);cursor:pointer;font-size:12px;padding:0;margin-left:8px;text-decoration:underline}

/* Admin sidebar collapse (/admin) */
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.sidebar-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:0;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;flex-shrink:0;transition:background .15s,border-color .15s}
.sidebar-toggle:hover{background:#f9fafb;border-color:#d1d5db}
.sidebar-toggle-bar{display:block;width:18px;height:2px;margin:0 auto;background:#374151;border-radius:1px;transition:transform .2s,opacity .2s}
.layout-admin-nav .sidebar{width:260px;min-width:260px;flex-shrink:0;transition:width .25s ease,min-width .25s ease,padding .25s ease,opacity .2s ease;overflow-x:hidden;overflow-y:auto}
.layout-admin-nav .content{flex:1;min-width:0;transition:max-width .25s ease}
.layout-admin-nav.sidebar-collapsed .sidebar{width:0;min-width:0;padding-left:0;padding-right:0;opacity:0;pointer-events:none;border:none}