.tdi-exam,.tdi-exam *{box-sizing:border-box}
.tdi-exam{--tdi-orange:#e89400;--tdi-blue:#062c92;--tdi-border:#dde2e8;max-width:1180px;margin:28px auto;font-family:Arial,Helvetica,sans-serif;color:#101828}
.tdi-start-screen{padding:22px 24px 25px;background:#fff;border-radius:9px;text-align:center;box-shadow:0 1px 12px rgba(15,23,42,.05)}
.tdi-start-screen h2{margin:0 0 16px;color:var(--tdi-orange);font-size:23px;line-height:1.25}
.tdi-start-meta{display:flex;justify-content:center;gap:32px;flex-wrap:wrap;font-size:19px}
.tdi-start-screen p{margin:28px 0 14px;font-size:19px}
.tdi-start-button,.tdi-card-button{display:inline-flex;align-items:center;justify-content:center;min-width:300px;min-height:52px;padding:12px 24px;border:0;border-radius:6px;background:var(--tdi-orange);color:#fff!important;font-size:18px;font-weight:700;text-decoration:none;cursor:pointer}
.tdi-workspace{border:1px solid var(--tdi-border);border-radius:10px;background:#fff;box-shadow:0 8px 28px rgba(15,23,42,.08)}
.tdi-toolbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:17px 21px;border-radius:10px 10px 0 0;background:rgba(255,255,255,.97);border-bottom:1px solid #eef0f3;backdrop-filter:blur(8px)}
.tdi-toolbar-title{display:block;color:var(--tdi-blue);font-size:20px}
.tdi-progress-label{display:block;margin-top:4px;color:#667085;font-size:13px}
.tdi-timer{min-width:110px;padding:10px 15px;border-radius:8px;background:#fff4df;color:#a75e00;font-size:24px;font-weight:800;text-align:center}
.tdi-timer.is-warning{background:#fff0f0;color:#c62828}
.tdi-progress{position:sticky;top:75px;z-index:19;height:5px;background:#eef1f5}
.tdi-progress i{display:block;height:100%;background:var(--tdi-orange);transition:width .2s}
.tdi-layout{display:grid;grid-template-columns:minmax(0,1fr) 246px;align-items:start}
.tdi-main{min-width:0;padding:25px 28px 34px;border-right:1px solid var(--tdi-border)}
.tdi-question-list{display:grid;gap:24px}
.tdi-question-card{min-height:0;padding:23px 24px 20px;border:1px solid #e2e6eb;border-radius:10px;background:#fff;box-shadow:0 3px 14px rgba(15,23,42,.045);scroll-margin-top:105px}
.tdi-question-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #edf0f3}
.tdi-question-heading strong{color:var(--tdi-orange);font-size:18px}
.tdi-question-heading span{padding:5px 10px;border-radius:999px;background:#eaf3ff;color:#245fa8;font-size:12px}
.tdi-question-content{font-size:17px;line-height:1.68;color:#111827;overflow-wrap:anywhere}
.tdi-question-content h1,.tdi-question-content h2,.tdi-question-content h3,.tdi-question-content h4{color:var(--tdi-blue);line-height:1.25}
.tdi-question-content table{width:100%!important;border-collapse:collapse;margin:14px 0;display:table}
.tdi-question-content td,.tdi-question-content th{border:1px solid #d9dde3;padding:9px!important;vertical-align:middle}
.tdi-question-content img{display:block;max-width:100%;height:auto;margin:16px auto}
.tdi-question-content audio{display:none!important}
.tdi-media-error{opacity:.45}
.tdi-fill-blank-wrapper{display:inline-flex;align-items:center;gap:6px;margin:2px 4px;vertical-align:middle;scroll-margin-top:150px}
.tdi-fill-blank-number{color:#0e4ba8;font-weight:800}
.tdi-fill-blank-input{width:235px;max-width:45vw;padding:5px 7px;border:0;border-bottom:2px solid #245db6;background:#fff;color:#111;font:inherit;outline:none}
.tdi-fill-blank-input:focus{border-color:var(--tdi-orange);background:#fffaf0}
.tdi-fill-blank-input.is-correct{border-color:#169447;background:#edfff3}
.tdi-fill-blank-input.is-wrong{border-color:#cf3027;background:#fff1f0}
.tdi-options{display:grid;gap:10px;margin-top:20px;scroll-margin-top:150px}
.tdi-options[hidden]{display:none}
.tdi-option{display:flex;align-items:flex-start;gap:12px;padding:13px 14px;border:1px solid #dfe3e8;border-radius:8px;background:#fff;cursor:pointer;transition:.15s}
.tdi-option:hover{border-color:#f0b248;background:#fffaf1}
.tdi-option input{position:absolute;opacity:0;pointer-events:none}
.tdi-option-key{display:flex;flex:0 0 34px;width:34px;height:34px;align-items:center;justify-content:center;border-radius:50%;background:#f1f3f6;color:#344054;font-weight:800}
.tdi-option-content{padding-top:5px;min-width:0;font-size:16px;line-height:1.45}
.tdi-option-content p{margin:0}
.tdi-option:has(input:checked){border-color:var(--tdi-orange);background:#fff8e9}
.tdi-option:has(input:checked) .tdi-option-key{background:var(--tdi-orange);color:#fff}
.tdi-option.is-correct{border-color:#1b9a54;background:#edf9f2}
.tdi-option.is-correct .tdi-option-key{background:#1b9a54;color:#fff}
.tdi-option.is-wrong{border-color:#d43a31;background:#fff1f0}
.tdi-option.is-wrong .tdi-option-key{background:#d43a31;color:#fff}
.tdi-feedback{margin-top:20px;padding:15px;border-left:4px solid #1b9a54;background:#f0faf4;line-height:1.55}
.tdi-feedback>div+div{margin-top:12px}
.tdi-later{display:flex;align-items:center;gap:8px;margin-top:18px;padding-top:14px;border-top:1px dashed #dfe3e8;color:#4b5563}
.tdi-later input{width:18px;height:18px}
.tdi-sidebar{position:sticky;top:96px;max-height:calc(100vh - 112px);overflow:auto;padding:20px 16px;background:#f8fafc}
.tdi-sidebar>strong{display:block;margin-bottom:12px;color:#344054}
.tdi-sidebar-note{display:block;margin:-5px 0 13px;color:#7a8494;font-size:12px;line-height:1.4}
.tdi-nav-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}
.tdi-nav-grid button{aspect-ratio:1;border:1px solid #d0d5dd;border-radius:6px;background:#fff;color:#344054;font-weight:700;cursor:pointer}
.tdi-nav-grid button.is-current{border-color:var(--tdi-orange);background:var(--tdi-orange);color:#fff}
.tdi-nav-grid button.is-answered:not(.is-current){border-color:#4e83d5;background:#eaf2ff;color:#174ea6}
.tdi-nav-grid button.is-review{box-shadow:inset 0 -4px #9b59b6}
.tdi-nav-grid button.is-correct{border-color:#1b9a54;background:#1b9a54;color:#fff}
.tdi-nav-grid button.is-wrong{border-color:#d43a31;background:#d43a31;color:#fff}
.tdi-actions{position:sticky;bottom:0;z-index:18;display:flex;align-items:center;gap:10px;padding:15px 20px;border-top:1px solid var(--tdi-border);border-radius:0 0 10px 10px;background:rgba(255,255,255,.97);backdrop-filter:blur(8px)}
.tdi-actions button,.tdi-result-actions button{min-height:43px;padding:9px 18px;border:1px solid #d0d5dd;border-radius:7px;background:#fff;color:#344054;font-weight:700;cursor:pointer}
.tdi-actions .tdi-submit{margin-left:auto;border-color:var(--tdi-orange);background:var(--tdi-orange);color:#fff}
.tdi-submit-status{display:flex;align-items:center;min-height:24px;margin-left:auto;color:#667085;font-size:13px;font-weight:700;line-height:1.35}
.tdi-submit-status.is-error{color:#c62828}.tdi-submit-status.is-ok{color:#16803c}.tdi-submit-status.is-waiting{color:#a75e00}
.tdi-actions .tdi-submit.is-loading{opacity:.72;cursor:wait}.tdi-actions .tdi-submit:disabled{opacity:.58;cursor:not-allowed}

.tdi-audio-anchor{min-height:106px;margin:0 0 20px}
.tdi-audio-player{width:100%;padding:14px 16px;border:1px solid #e7b04a;border-radius:12px;background:linear-gradient(135deg,#fff9ec,#fff);box-shadow:0 8px 22px rgba(55,35,0,.09);transition:box-shadow .2s,transform .2s}
.tdi-audio-head{display:flex;align-items:center;gap:10px;margin-bottom:11px;color:#5c3b00}
.tdi-audio-head strong{font-size:15px}
.tdi-audio-badge{padding:4px 7px;border-radius:5px;background:var(--tdi-orange);color:#fff;font-size:10px;font-weight:800;letter-spacing:.08em}
.tdi-audio-controls{display:flex;align-items:center;gap:12px}
.tdi-audio-toggle{display:grid;flex:0 0 42px;width:42px;height:42px;place-items:center;border:0;border-radius:50%;background:var(--tdi-orange);color:#fff;cursor:pointer;box-shadow:0 5px 12px rgba(232,148,0,.3)}
.tdi-audio-toggle svg{width:21px;height:21px;fill:currentColor}
.tdi-audio-time{display:flex;align-items:center;gap:5px;color:#684c1a;font-size:13px;font-variant-numeric:tabular-nums;font-weight:700}
.tdi-audio-seek{--tdi-audio-progress:0%;width:100%;height:5px;margin:13px 0 2px;border-radius:999px;appearance:none;background:linear-gradient(to right,var(--tdi-orange) 0,var(--tdi-orange) var(--tdi-audio-progress),#eadfca var(--tdi-audio-progress),#eadfca 100%);cursor:pointer}
.tdi-audio-seek::-webkit-slider-thumb{width:16px;height:16px;border:2px solid #fff;border-radius:50%;appearance:none;background:var(--tdi-orange);box-shadow:0 1px 5px rgba(0,0,0,.28)}
.tdi-audio-seek::-moz-range-thumb{width:14px;height:14px;border:2px solid #fff;border-radius:50%;background:var(--tdi-orange);box-shadow:0 1px 5px rgba(0,0,0,.28)}
.tdi-audio-native{display:none!important}
.tdi-audio-player.is-error{border-color:#d43a31;background:#fff2f1}
@media(min-width:1540px){.tdi-audio-player.is-floating{position:fixed;z-index:1000;top:118px;left:max(18px,calc(50vw - 790px));width:220px;padding:13px;box-shadow:0 16px 34px rgba(15,23,42,.22);transform:translateZ(0)}.tdi-audio-player.is-floating .tdi-audio-head{align-items:flex-start;flex-direction:column;gap:5px}.tdi-audio-player.is-floating .tdi-audio-controls{justify-content:space-between}}
@media(max-width:1539px){.tdi-audio-player.is-floating{position:fixed;z-index:1000;left:14px;right:14px;bottom:14px;width:auto;max-width:620px;margin:0 auto;padding:10px 13px;box-shadow:0 14px 38px rgba(15,23,42,.25)}.tdi-audio-player.is-floating .tdi-audio-head{display:none}.tdi-audio-player.is-floating .tdi-audio-controls{float:left;margin-right:12px}.tdi-audio-player.is-floating .tdi-audio-toggle{width:38px;height:38px;flex-basis:38px}.tdi-audio-player.is-floating .tdi-audio-seek{width:calc(100% - 160px);margin:17px 0 0}}

.tdi-result-card{padding:30px;border:1px solid var(--tdi-border);border-radius:10px;background:#fff;text-align:center;box-shadow:0 8px 28px rgba(15,23,42,.08)}
.tdi-result-card h2{margin:0 0 18px;color:var(--tdi-blue)}
.tdi-score{color:var(--tdi-orange);font-size:54px;font-weight:900}
.tdi-score small{display:block;margin-top:3px;color:#667085;font-size:14px;font-weight:500}
.tdi-score-text{font-size:30px}
.tdi-result-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-width:650px;margin:24px auto}
.tdi-result-stats span{padding:13px;border-radius:8px;background:#f8fafc;color:#667085}
.tdi-result-stats strong{display:block;color:#101828;font-size:23px}
.tdi-result-note{max-width:690px;margin:0 auto 18px;padding:12px;border-radius:7px;background:#fff8e7;color:#8a5300}
.tdi-result-actions{display:flex;justify-content:center;gap:10px}
.tdi-result-actions .tdi-review-button{border-color:var(--tdi-orange);background:var(--tdi-orange);color:#fff}
.tdi-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tdi-list-card{overflow:hidden;border:1px solid #e1e5ea;border-radius:11px;background:#fff;box-shadow:0 3px 14px rgba(15,23,42,.06)}
.tdi-card-image{display:block;aspect-ratio:16/9;overflow:hidden}.tdi-card-image img{width:100%;height:100%;object-fit:cover}
.tdi-card-body{padding:17px}.tdi-skill{display:inline-block;margin-bottom:9px;padding:5px 9px;border-radius:7px;background:#1578d3;color:#fff;font-size:12px;font-weight:800}.tdi-skill-reading{background:#37a52b}
.tdi-card-body h3{margin:0 0 8px;font-size:18px}.tdi-card-body h3 a{color:var(--tdi-blue);text-decoration:none}.tdi-card-body p{margin:0 0 14px;color:#667085}.tdi-card-button{min-width:0;min-height:40px;padding:8px 14px;font-size:14px}.tdi-empty{padding:18px;border:1px solid #e5e7eb;border-radius:8px;background:#fff}
.tdi-single-page{width:100%;padding:30px 16px 56px;background:#f7f5f0}.tdi-single-container{width:100%;max-width:1280px;margin:0 auto}.tdi-single-article,.tdi-single-content{margin:0;padding:0;background:transparent}.tdi-single-content>.tdi-exam:first-child{margin-top:0}.tdi-single-content>p:empty{display:none}

@media(max-width:900px){.tdi-layout{grid-template-columns:1fr}.tdi-main{border-right:0}.tdi-sidebar{position:relative;top:auto;max-height:none;border-top:1px solid var(--tdi-border)}.tdi-nav-grid{grid-template-columns:repeat(10,1fr)}.tdi-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:580px){.tdi-exam{margin:14px auto}.tdi-start-screen{padding:20px 14px}.tdi-start-screen h2{font-size:20px}.tdi-start-meta{gap:8px 18px;font-size:16px}.tdi-start-button{width:100%;min-width:0}.tdi-toolbar{padding:12px}.tdi-toolbar-title{font-size:15px}.tdi-progress-label{font-size:11px}.tdi-timer{min-width:82px;padding:8px 9px;font-size:19px}.tdi-progress{top:67px}.tdi-main{padding:14px 9px 26px}.tdi-question-list{gap:15px}.tdi-question-card{padding:17px 12px 15px;scroll-margin-top:90px}.tdi-question-content{font-size:16px}.tdi-question-content table{display:block;overflow-x:auto}.tdi-fill-blank-wrapper{display:flex;margin:7px 0}.tdi-fill-blank-input{width:100%;max-width:none}.tdi-sidebar{padding:14px 10px}.tdi-nav-grid{grid-template-columns:repeat(6,1fr)}.tdi-actions{padding:10px;flex-wrap:wrap}.tdi-submit-status{width:100%;margin-left:0;order:2}.tdi-actions .tdi-submit{width:100%;margin-left:0;order:3}.tdi-result-stats{grid-template-columns:repeat(2,1fr)}.tdi-result-actions{flex-direction:column}.tdi-list{grid-template-columns:1fr}.tdi-single-page{padding:16px 8px 36px}.tdi-audio-anchor{min-height:112px}.tdi-audio-player.is-floating{left:8px;right:8px;bottom:8px}.tdi-audio-player.is-floating .tdi-audio-controls{margin-right:8px}.tdi-audio-player.is-floating .tdi-audio-time{font-size:11px}.tdi-audio-player.is-floating .tdi-audio-seek{width:calc(100% - 138px)}}

/* TOEIC multi-audio playlist */
.tdi-audio-track-wrap{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:10px;margin:0 0 12px;color:#6b4b14;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.05em}
.tdi-audio-track-wrap[hidden]{display:none!important}
.tdi-audio-track{width:100%;min-width:0;height:38px;padding:0 34px 0 11px;border:1px solid #e7c47f;border-radius:9px;color:#513607;background:#fff;font:inherit;font-size:12px;font-weight:750;outline:0;cursor:pointer}
.tdi-audio-track:focus{border-color:var(--tdi-orange);box-shadow:0 0 0 3px rgba(232,148,0,.13)}
.tdi-audio-part-jump{display:flex;align-items:center;gap:10px;width:100%;margin:8px 0 16px;padding:11px 13px;border:1px dashed #e7b04a;border-radius:10px;color:#5c3b00;background:#fffaf0;text-align:left;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s}
.tdi-audio-part-jump .tdi-audio-part-icon{display:grid;place-items:center;flex:0 0 32px;width:32px;height:32px;border-radius:50%;color:#fff;background:var(--tdi-orange)}
.tdi-audio-part-meta{display:block;min-width:0;flex:1}
.tdi-audio-part-jump strong,.tdi-audio-part-jump small{display:block}
.tdi-audio-part-jump strong{max-width:100%;overflow:hidden;color:#513607;font-size:13px;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}
.tdi-audio-part-jump small{margin-top:3px;color:#8c744b;font-size:10px;font-weight:700;line-height:1.35}
.tdi-audio-part-jump em{flex:0 0 auto;color:#9b6100;font-size:11px;font-style:normal;font-weight:800;white-space:nowrap}
.tdi-audio-part-jump:hover{border-style:solid;box-shadow:0 7px 18px rgba(80,50,0,.08)}
.tdi-audio-part-jump.is-active{border-style:solid;border-color:var(--tdi-orange);background:#fff6e3}
.tdi-audio-part-jump.is-playing em{color:#16803c}
.tdi-audio-player.is-floating .tdi-audio-track-wrap{grid-template-columns:1fr;margin-bottom:8px}
.tdi-audio-player.is-floating .tdi-audio-track-wrap>span{display:none}
.tdi-audio-player.is-floating .tdi-audio-track{height:32px;font-size:11px}
@media(max-width:760px){.tdi-audio-track-wrap{grid-template-columns:1fr}.tdi-audio-part-jump em{font-size:10px}.tdi-audio-player.is-floating .tdi-audio-track-wrap{float:none;width:100%;margin:0 0 6px}.tdi-audio-player.is-floating .tdi-audio-controls{float:left}}