.classroom-entry{text-decoration:none;display:flex;align-items:center;gap:20px;width:100%;text-align:left;margin:20px 0 26px;padding:22px 26px;border:2px solid #c1ddef;border-radius:26px;background:#e4f4ff;color:#234a6b;box-shadow:0 5px #cce3ed}.classroom-entry>.ui-icon{width:52px;height:52px}.classroom-entry strong{display:block;font-size:25px;margin-bottom:6px}.classroom-entry small{font-size:16px;color:#527588}.classroom-entry .entry-go{margin-left:auto;background:#fff;padding:14px 20px;border-radius:18px;font-weight:700;white-space:nowrap}.classroom-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 28px;background:#e3f3ff;border-radius:28px;margin:18px 0 24px}.classroom-head h1{font-size:34px;margin:8px 0}.classroom-head p{font-size:17px;margin:10px 0;line-height:1.65}.classroom-head .character{width:90px;height:125px}.classroom-back{min-height:48px;padding:12px 18px;background:#fff;border:1px solid #c8dfe5;border-radius:16px;color:#234a6b;font-size:16px}.course-filters{display:flex;gap:12px;margin:24px 0;flex-wrap:wrap}.course-filters button{min-width:90px;min-height:52px;border-radius:18px;background:#fff;border:2px solid #d0e4e8;font-size:19px;color:#345b73}.course-filters button[aria-pressed=true]{background:#ffe2ef;border-color:#e88eb6;color:#a42e65}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.course-card{background:#fff;border:2px solid #d6e6eb;border-radius:26px;overflow:hidden;display:flex;flex-direction:column}.course-cover{height:172px;background:#ffe6ee;display:flex;align-items:center;justify-content:space-around;padding:20px;overflow:hidden}.course-cover>b{font-size:38px;letter-spacing:2px;color:#aa3b69;transform:rotate(-5deg)}.course-cover .character{width:80px;height:130px}.course-card:nth-child(2) .course-cover{background:#e9f2d6}.course-card:nth-child(3) .course-cover{background:#fff0c5}.course-info{padding:22px;display:flex;flex:1;flex-direction:column}.course-info h2{font-size:25px;margin:10px 0}.course-info p{font-size:16px;line-height:1.7;flex:1;margin:0 0 20px;color:#617d91}.course-info small{color:#617d91}.course-info button{min-height:52px;font-size:19px}.classroom-note{color:#617d91;font-size:14px;line-height:1.8;margin:24px 0}.course-empty{padding:50px 24px;text-align:center;background:#fff;border:2px dashed #c5dce5;border-radius:26px}.course-empty .character{width:95px;height:130px;margin:auto}.course-empty h2{font-size:25px}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}.video-screen{aspect-ratio:16/9;background:#18374c;border-radius:22px;overflow:hidden;display:grid;place-items:center;color:#fff;text-align:center}.video-screen iframe{width:100%;height:100%;border:0}.video-screen p{padding:24px;line-height:1.8}.video-help{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:16px 0}.video-help button,.video-help a{min-height:48px;padding:12px 16px;border:1px solid #c5dce5;background:#fff;color:#345b73;border-radius:14px;font-size:15px;text-decoration:none}.lesson-picker{background:#fff;border:2px solid #d6e6eb;border-radius:22px;padding:18px}.lesson-picker h2{font-size:22px;margin:0 0 15px}.lesson-list{display:grid;gap:10px;max-height:480px;overflow:auto}.lesson-list button{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:56px;padding:14px;text-align:left;background:#f0f7fa;color:#345b73;border:2px solid transparent;border-radius:14px;font-size:17px}.lesson-list button[aria-current=true]{background:#ffdfed;border-color:#e68eb5;color:#99275d}.lesson-list small{font-size:13px;white-space:nowrap}.classroom-entry:focus-visible,.classroom-back:focus-visible,.course-filters button:focus-visible,.course-card button:focus-visible,.lesson-list button:focus-visible,.video-help :focus-visible{outline:3px solid #167caa;outline-offset:4px}@media(max-width:1000px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-layout{grid-template-columns:1fr}.lesson-list{grid-template-columns:repeat(3,minmax(0,1fr));max-height:310px}}@media(max-width:560px){.classroom-entry{padding:18px 14px;gap:12px;flex-wrap:wrap}.classroom-entry strong{font-size:22px}.classroom-entry small{font-size:14px}.classroom-entry .entry-go{padding:10px 14px}.classroom-entry>.ui-icon{width:36px;height:36px}.classroom-head{padding:20px;gap:10px}.classroom-head h1{font-size:27px}.classroom-head p{font-size:15px}.classroom-head .character{width:60px;height:90px}.course-grid{grid-template-columns:1fr}.course-filters{gap:8px}.course-filters button{min-width:64px;flex:1;font-size:17px}.lesson-list{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-list button{font-size:15px;padding:10px}.video-screen{border-radius:14px}}.video-shell{min-width:0;background:#18374c;border-radius:22px;overflow:hidden}.video-fullscreen-bar{display:none}.video-launch{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#dff2fb;color:#24597a;border:3px solid #a7d5e8;border-radius:22px}.video-launch>span{display:grid;place-items:center;width:72px;height:72px;background:#ce4b88;color:#fff;border-radius:50%;font-size:30px;padding-left:5px}.video-launch strong{font-size:25px}.video-launch small{font-size:16px;color:#527588}.video-launch:focus-visible,.video-exit:focus-visible{outline:4px solid #eac43b;outline-offset:-5px}.video-shell.video-expanded,.video-shell:fullscreen{position:fixed;inset:0;width:100%;height:100%;height:100dvh;z-index:100;background:#102633;border-radius:0;display:flex;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.video-expanded .video-fullscreen-bar,.video-shell:fullscreen .video-fullscreen-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:62px;padding:8px 16px;color:#fff}.video-exit{background:#fff;color:#234a6b;border-radius:14px;min-height:46px;padding:10px 16px;font-size:17px;white-space:nowrap}.video-expanded .video-screen,.video-shell:fullscreen .video-screen{width:100%;flex:1;min-height:0;aspect-ratio:auto;border-radius:0}.video-expanded .video-screen iframe,.video-shell:fullscreen .video-screen iframe{display:block}.video-expanded .video-launch{border-radius:0}body:has(.video-expanded){overflow:hidden}
