.ikt-app{--blue:#173f7a;--coral:#ef6b54;--ivory:#fffaf0;--ink:#172033;max-width:1080px;margin:32px auto;padding:0 18px;color:var(--ink);font-family:"Nunito Sans","Noto Sans KR",Arial,sans-serif;box-sizing:border-box}.ikt-app *{box-sizing:border-box}.ikt-hero{padding:42px 34px;border-radius:24px;background:linear-gradient(135deg,#12366c,#245fa6);color:#fff;box-shadow:0 16px 38px rgba(23,63,122,.18)}.ikt-eyebrow{margin:0 0 8px;font-size:12px;font-weight:800;letter-spacing:.14em;color:#ffd8ca}.ikt-hero h1{margin:0 0 8px;font-size:clamp(30px,5vw,52px);line-height:1.08;color:#fff}.ikt-hero p:last-child{margin:0;font-size:17px}.ikt-toolbar{display:flex;justify-content:space-between;gap:16px;align-items:end;margin:22px 0}.ikt-toolbar label{font-weight:800;flex:1}.ikt-toolbar select,.ikt-toolbar button,.ikt-result button{display:block;width:100%;margin-top:7px;border:1px solid #d9e0ea;border-radius:12px;padding:13px 15px;background:#fff;font:inherit}.ikt-toolbar button,.ikt-result button{width:auto;border:0;background:var(--coral);color:#fff;font-weight:800;cursor:pointer}.ikt-card,.ikt-keyboard-wrap{background:#fff;border:1px solid #e5e9ef;border-radius:20px;padding:24px;box-shadow:0 8px 28px rgba(25,49,85,.08)}.ikt-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.ikt-stats div{text-align:center;background:var(--ivory);border-radius:13px;padding:12px}.ikt-stats strong{display:block;font-size:23px;color:var(--blue)}.ikt-stats span{font-size:12px;color:#667085}.ikt-prompt{margin:30px 0 20px;min-height:70px;font-size:clamp(24px,4vw,38px);font-weight:800;line-height:1.65;text-align:center;word-break:keep-all}.ikt-prompt .done{color:#219653}.ikt-prompt .wrong{color:#d92d20;background:#fee4e2;border-radius:3px}.ikt-prompt .current{border-bottom:3px solid var(--coral)}.ikt-input-label{display:block;margin-bottom:7px;font-weight:800}.ikt-input{font-size:20px}.ikt-app textarea{width:100%;resize:vertical;border:2px solid #cfd8e5;border-radius:13px;padding:15px;font-size:21px;line-height:1.5;outline:none}.ikt-app textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,63,122,.12)}.ikt-help{margin:10px 0 0;color:#667085;font-size:14px}.ikt-result{margin-top:16px;padding:16px;border-radius:12px;background:#ecfdf3;color:#027a48;display:flex;align-items:center;justify-content:space-between;gap:12px}.ikt-result[hidden]{display:none}.ikt-keyboard-wrap{margin-top:20px;background:#f8fafc}.ikt-keyboard-title{display:flex;justify-content:space-between;margin-bottom:15px}.ikt-keyboard-title span{color:#667085;font-size:13px}.ikt-keyboard{display:flex;flex-direction:column;gap:7px}.ikt-row{display:flex;justify-content:center;gap:7px}.ikt-key{width:58px;min-height:54px;border:1px solid #ccd5e2;border-bottom-width:3px;border-radius:9px;background:#fff;cursor:pointer;color:#344054}.ikt-key:hover,.ikt-key.active{background:#e9f1fb;border-color:var(--blue)}.ikt-key span{display:block;font-size:11px;color:#667085}.ikt-key strong{font-size:19px;color:var(--blue)}.ikt-key.space{width:320px}.ikt-key.backspace{width:95px;font-size:12px;font-weight:800}@media(max-width:700px){.ikt-hero{padding:30px 22px}.ikt-toolbar{align-items:stretch;flex-direction:column}.ikt-toolbar button{width:100%}.ikt-card,.ikt-keyboard-wrap{padding:16px}.ikt-stats{grid-template-columns:repeat(2,1fr)}.ikt-keyboard-wrap{overflow-x:auto}.ikt-keyboard{min-width:620px}.ikt-result{align-items:stretch;flex-direction:column}.ikt-result button{width:100%}}