:root{color-scheme:dark;--bg:#101415;--panel:#191e20;--field:#101517;--line:#30393b;--text:#f1f5f3;--muted:#a5b2ad;--mint:#55efb4;--error:#ffb6a9;font-family:Inter,'Pretendard','Noto Sans KR','Malgun Gothic',system-ui,sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--mint);outline-offset:4px}[hidden]{display:none!important}.shell{width:min(1120px,100% - 64px);margin:auto}.topbar{height:96px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:750}.brand-icon{display:grid;place-items:center;width:35px;height:35px;border-radius:10px;background:var(--mint);color:#10291f;font-size:17px;padding-left:2px}.brand-sub{font-weight:450;color:var(--muted);margin-left:10px;font-size:15px}.channel-link{font-size:14px;color:#c6d3cd}.channel-link span{margin-left:10px}.channel-link:hover{color:var(--mint)}.heading-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:43px 0 28px}.eyebrow{font-size:14px;color:var(--mint);margin:0 0 4px;font-weight:600}h1{font-size:36px;letter-spacing:-1.5px;margin:0;font-weight:750;line-height:1.5}.mint{color:var(--mint)}.intro{color:var(--muted);margin:9px 0 0;font-size:15px}.rules{display:flex;gap:10px;flex-shrink:0;padding-bottom:4px}.rules>span{background:#1d2823;border:1px solid #34453d;padding:7px 13px;border-radius:8px;font-size:14px;color:#c3d2ca}.rules strong{color:var(--mint);font-weight:600;margin-left:4px}.workspace{display:grid;grid-template-columns:1.08fr 1fr;gap:20px;align-items:stretch}.panel{border:1px solid var(--line);border-radius:18px;background:var(--panel)}.editor{padding:26px 28px 15px}.section-title{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap}.section-title h2,.preview h2{font-size:17px;font-weight:650;margin:0;letter-spacing:-.3px}.step{font-size:12px;letter-spacing:.8px;color:var(--mint);font-weight:650;border:1px solid #365147;border-radius:6px;padding:1px 6px;line-height:1.7}.provider{margin-left:auto;font-size:12px;color:var(--muted)}label{display:block;margin-bottom:7px;font-size:14px;color:#d5ded9;font-weight:500}input,textarea{background:var(--field);color:var(--text);border:1px solid #3b4747;border-radius:9px;width:100%;padding:13px 14px;min-width:0}input::placeholder,textarea::placeholder{color:#8d9d97}input[aria-invalid=true]{border-color:var(--error)}.help{font-size:13px;color:var(--muted);margin:9px 0 0;line-height:1.7}.divider{height:1px;background:var(--line);margin:25px 0 22px}.segmented{display:flex;background:var(--field);border:1px solid var(--line);padding:4px;border-radius:10px;margin-bottom:18px}.segmented button{flex:1;border:0;background:transparent;color:var(--muted);font-size:14px;padding:8px 5px;border-radius:6px}.segmented button[aria-pressed=true]{background:#33453c;color:#c8ffe7}.time-fields{display:grid;grid-template-columns:1fr 28px 1fr;align-items:end;gap:10px}.time-fields input{font-size:24px;font-variant-numeric:tabular-nums;letter-spacing:1px;height:57px;padding-top:8px;padding-bottom:8px}.time-separator{color:#81938b;align-self:end;text-align:center;padding-bottom:16px}.presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:15px}.presets button{background:transparent;border:1px solid #46524d;border-radius:7px;padding:6px 10px;font-size:14px;color:#c4d0ca}.presets button[aria-pressed=true]{background:#263d31;border-color:#6aac8e;color:#c3ffdf}.presets button:hover,.preview-actions button:not(:disabled):hover{border-color:var(--mint);color:var(--mint)}.error{min-height:22px;font-size:13px;line-height:1.6;color:var(--error);margin:12px 0 0}.preview{padding:25px 26px;display:flex;flex-direction:column}.preview-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:19px}.muted{font-size:13px;color:var(--muted)}.video-stage{aspect-ratio:16/9;background:#0d1214;border:1px solid #2b3535;border-radius:11px;overflow:hidden;position:relative;display:grid;place-items:center}.preview-empty{text-align:center;padding:20px;max-width:100%}.play-mark{display:grid;place-items:center;margin:0 auto 14px;width:51px;height:51px;background:#202e28;color:#83b79c;border:1px solid #3a5145;border-radius:50%;font-size:18px;padding-left:3px}.preview-empty p{font-size:16px;margin:0 0 5px;font-weight:550}.preview-empty>span:last-child{font-size:13px;line-height:1.6;color:var(--muted);display:block}.video-stage #player,.video-stage iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.range{display:flex;align-items:center;gap:14px;margin:24px 0 20px}.range>div:not(.range-line):not(.duration-pill){display:flex;flex-direction:column;gap:2px}.range span{font-size:12px;color:var(--muted)}.range strong{font-size:23px;font-variant-numeric:tabular-nums;font-weight:550}.range-line{height:2px;flex:1;background:#41604f;position:relative}.range-line:before,.range-line:after{content:'';position:absolute;top:-3px;height:8px;width:3px;background:#6d987f}.range-line:after{right:0}.duration-pill{margin-left:7px;background:#253c30;color:#b9f9d7;border-radius:8px;padding:6px 10px;white-space:nowrap;font-size:14px}.preview-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.preview-actions button{border:1px solid #53655b;background:transparent;color:#d6e4dc;border-radius:8px;padding:9px 14px;font-size:14px}.preview-actions button span{margin-right:7px}.preview-actions a{font-size:13px;color:var(--muted);text-decoration:underline;text-underline-offset:4px}.preview-note{margin-top:auto;padding-top:17px}.result{grid-column:1/-1;padding:24px 28px;background:#1a2520;border-color:#3f594b}.result .section-title{margin-bottom:15px}.copy-row{display:grid;grid-template-columns:1fr auto;gap:15px;align-items:stretch}textarea{resize:none;line-height:1.7;font-family:ui-monospace,Consolas,'Malgun Gothic',monospace;font-size:14px;min-height:76px;overflow-wrap:anywhere}#copy-button{display:flex;gap:10px;align-items:center;justify-content:center;border:0;background:var(--mint);color:#102b20;font-size:16px;font-weight:750;border-radius:9px;padding:15px 24px;min-width:220px}#copy-button:not(:disabled):hover{background:#87ffcf}#copy-button svg{width:21px;height:21px;flex-shrink:0}.copy-status{font-size:13px;color:#b1c3b8;margin:12px 0 0}.copy-status.success{color:var(--mint)}.text-button{border:0;background:transparent;text-decoration:underline;color:var(--mint);padding:7px 0;font-size:14px}footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:25px 0 34px;font-size:12px;color:#9cafa3}.skip{position:fixed;top:-100px;background:var(--mint);color:#0c241b;padding:10px;z-index:10}.skip:focus{top:10px;left:10px}
@media(max-width:950px){.shell{width:min(760px,100% - 40px)}.heading-row{align-items:flex-start;flex-direction:column;gap:18px}.workspace{grid-template-columns:1fr}.preview{padding:24px 28px}.video-stage{max-height:340px}.preview-note{margin-top:0}.range{margin:18px 0}.result{grid-column:auto}.heading-row{margin-top:30px}}
@media(max-width:560px){.shell{width:calc(100% - 28px)}.topbar{height:75px}.brand{font-size:17px;gap:8px}.brand-sub{display:none}.channel-link{font-size:13px}.heading-row{margin:27px 3px 22px;gap:16px}h1{font-size:29px;letter-spacing:-1px}.intro{font-size:14px;max-width:290px}.rules>span{padding:5px 11px}.workspace{gap:14px}.editor,.preview,.result{padding:21px 18px}.editor{padding-bottom:12px}.provider{font-size:12px}.section-title{gap:8px}.section-title h2,.preview h2{font-size:16px}.divider{margin:22px 0}.time-fields{gap:5px;grid-template-columns:1fr 20px 1fr}.time-fields input{font-size:22px}.help{font-size:12px}.copy-row{grid-template-columns:1fr;gap:12px}#copy-button{min-height:54px}.preview-empty{padding:15px}.preview-empty p{font-size:15px}.play-mark{margin-bottom:10px;width:42px;height:42px}.range{gap:10px}.range strong{font-size:21px}.duration-pill{margin-left:3px}.result textarea{min-height:96px}footer{display:block;line-height:1.8;margin:21px 3px 28px}footer span{display:block}.copy-status{font-size:13px}.provider{margin-left:0;flex:1;text-align:right}}
@media(prefers-reduced-motion:no-preference){button,a{transition:background .15s,color .15s,border-color .15s}}