/* ONE HOME v14.67.178 — Dood U ASL A-Z dark visual system */
#doodUPage,#doodUCoursePage,#doodULetterPage{--du-bg:#071425;--du-bg2:#0b1b34;--du-ink:#fff;--du-muted:#c9d4e5;--du-purple:#a881ff;--du-blue:#49b9ff;--du-green:#55e6a5;--du-pink:#ff76a9;--du-yellow:#ffc750}
body:has(#doodUPage.active) #doodUPage,body:has(#doodUCoursePage.active) #doodUCoursePage,body:has(#doodULetterPage.active) #doodULetterPage{padding:0!important;border:0!important;border-radius:0!important;background:transparent!important;box-shadow:none!important;overflow:visible!important}
.doodu-shell{width:min(1460px,calc(100% - 20px));margin:0 auto;color:#fff}.doodu-dark{padding:28px clamp(18px,3.5vw,58px) 48px;background:radial-gradient(circle at 20% 10%,rgba(97,88,255,.16),transparent 34%),radial-gradient(circle at 86% 75%,rgba(51,112,255,.12),transparent 35%),linear-gradient(135deg,var(--du-bg),var(--du-bg2));min-height:72vh}
.doodu-wordmark{display:flex;align-items:center;gap:5px;margin:2px 0 8px;font-size:clamp(68px,9vw,132px);font-weight:1000;letter-spacing:-.09em;line-height:.86}.doodu-wordmark span:nth-child(1){color:#b38bff}.doodu-wordmark span:nth-child(2){color:#4ab8ff}.doodu-wordmark span:nth-child(3){color:#55dfa9}.doodu-wordmark span:nth-child(4){color:#ffc95b}.doodu-wordmark span:nth-child(5){color:#ff73a8}.doodu-wordmark b{font-size:.42em;color:#fff;margin-left:.08em}.doodu-wordmark.compact{font-size:clamp(56px,8vw,104px)}.doodu-tag{margin:12px 0 30px;font-size:clamp(18px,2vw,27px);font-weight:800;color:#fff}
.doodu-area-list{display:block}.doodu-area-link{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;padding:24px 2px;border:0;border-bottom:1px solid rgba(255,255,255,.15);background:transparent;color:#fff;text-align:left;cursor:pointer}.doodu-area-link strong{display:block;font-size:clamp(25px,3vw,36px)}.doodu-area-link small{display:block;margin-top:5px;font-size:16px;color:var(--du-muted)}.doodu-area-link em{font-style:normal;font-weight:900;color:var(--du-green)}
.doodu-backlink{border:0;background:transparent;color:#fff;font:inherit;font-weight:900;padding:0;margin:0 0 22px;cursor:pointer}.doodu-crumb{font-size:clamp(15px,1.7vw,22px);color:#dce6f5;margin:8px 0 18px}.doodu-pill{display:inline-block;padding:10px 18px;border-radius:999px;background:linear-gradient(90deg,#6d55ff,#9256ff);font-size:clamp(16px,1.7vw,23px);font-weight:900}.doodu-course-title{font-size:clamp(46px,6vw,82px);margin:30px 0 18px}
.doodu-letter-layout{display:grid;grid-template-columns:minmax(0,.98fr) minmax(430px,1.02fr);gap:46px;align-items:start}.doodu-left{min-width:0}.doodu-lesson-title{font-size:clamp(47px,5vw,78px);letter-spacing:-.04em;line-height:1.02;margin:20px 0 6px}.doodu-lesson-title span{color:var(--du-green)}.doodu-prompt{font-size:clamp(18px,1.6vw,25px);font-weight:700;margin:10px 0 4px;color:#fff}.doodu-mascot-row{height:145px;margin:8px 0 -4px}.doodu-mascot-row svg{overflow:visible}
.doodu-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 22px}.doodu-action{min-height:58px;border:0;border-radius:14px;padding:13px 18px;font:inherit;font-size:clamp(16px,1.3vw,21px);font-weight:950;color:#071425;cursor:pointer}.doodu-action.purple{background:linear-gradient(90deg,#c5b1ff,#a68cff)}.doodu-action.blue{background:linear-gradient(90deg,#59c8ff,#3baaf2)}.doodu-action.green{background:linear-gradient(90deg,#64efb7,#4edaa0)}.doodu-action.pink{background:linear-gradient(90deg,#ff8ab5,#ff6e9f)}
.doodu-alphabet{display:grid;grid-template-columns:repeat(13,minmax(36px,1fr));gap:7px}.doodu-alphabet.course{margin-top:24px}.doodu-letter-button{aspect-ratio:1;border:1px solid rgba(150,180,225,.28);border-radius:8px;background:rgba(10,22,42,.78);color:#fff;font:inherit;font-size:18px;font-weight:900;cursor:pointer}.doodu-letter-button.active,.doodu-letter-button:hover{background:var(--du-green);color:#071425;border-color:var(--du-green)}.doodu-letter-button.is-done:not(.active){box-shadow:inset 0 -3px 0 rgba(85,230,165,.8)}
.doodu-preview{position:sticky;top:18px;min-width:0}.doodu-card{background:#fff;border-radius:24px;padding:10px;box-shadow:0 20px 55px rgba(0,0,0,.35)}.doodu-card svg{display:block;width:100%;height:auto;aspect-ratio:1}.doodu-preview-label{text-align:center;font-size:clamp(18px,1.6vw,25px);margin-top:14px;color:#fff}.doodu-preview-label span{display:block;margin-top:5px;font-size:15px;color:var(--du-muted)}
.doodu-color-modal{position:fixed;inset:0;z-index:99999;background:rgba(1,8,18,.88);display:grid;place-items:center;padding:18px}.doodu-color-panel{position:relative;width:min(760px,96vw);max-height:94vh;overflow:auto;background:#0b1930;color:#fff;padding:22px;border-radius:20px}.doodu-color-close{position:absolute;right:14px;top:10px;border:0;background:transparent;color:#fff;font-size:34px;cursor:pointer}.doodu-color-panel canvas{width:100%;height:auto;background:#fff;touch-action:none;margin:14px 0}.doodu-palette{display:flex;gap:10px;flex-wrap:wrap}.doodu-palette button{width:42px;height:42px;border-radius:50%;border:3px solid #fff;cursor:pointer}
@media(max-width:980px){.doodu-letter-layout{grid-template-columns:1fr}.doodu-preview{position:static}.doodu-wordmark{font-size:clamp(68px,18vw,116px)}.doodu-dark{padding-inline:18px}.doodu-mascot-row{height:120px}.doodu-alphabet{grid-template-columns:repeat(9,1fr)}}
@media(max-width:620px){.doodu-actions{grid-template-columns:1fr}.doodu-alphabet{grid-template-columns:repeat(7,1fr)}.doodu-area-link{grid-template-columns:1fr}.doodu-area-link em{margin-top:4px}.doodu-lesson-title{font-size:44px}.doodu-wordmark{font-size:64px;gap:2px}.doodu-card{border-radius:15px;padding:7px}}