body.classroom-page { min-height: 100vh; background: radial-gradient(circle at 16% 0%, rgba(255,122,26,0.14), transparent 30rem), radial-gradient(circle at 88% 16%, rgba(60,168,122,0.14), transparent 26rem), linear-gradient(180deg, #05070b 0%, #080b12 58%, #05070b 100%); color: rgba(255,255,255,0.92); overflow-x: hidden; }
    body.classroom-page::before, body.classroom-page::after { content: none !important; }
    .classroom-page .site-header { position: sticky; top: 0; background: rgba(5, 7, 11, 0.58); border-bottom: 1px solid rgba(255,255,255,0.10); backdrop-filter: blur(18px); }
    .classroom-page .site-header .brand, .classroom-page .site-header .navlinks { color: rgba(255,255,255,0.86) !important; }
    .classroom-page .navlinks > a:hover, .classroom-page .navlinks > a.active, .classroom-page .app-dropdown[open] > summary { background: rgba(255,255,255,0.90); color: #05070b; }
    .classroom-hero { padding: 40px 0 18px; }
    .classroom-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 18px; color: rgba(255,255,255,.58); font-size: 14px; font-weight: 800; }
    .classroom-breadcrumb a { color: rgba(255,255,255,.90); text-decoration: none; }
    .classroom-breadcrumb a:hover { text-decoration: underline; text-underline-offset: 4px; }
    .classroom-breadcrumb strong { color: #ff9a4d; }
    .classroom-hero .status-pill { display: inline-flex; width: fit-content; margin-bottom: 14px; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.92); color: #05070b; font-size: 13px; font-weight: 850; }
    .classroom-hero h1 { margin: 0; font-size: clamp(34px, 5vw, 58px); line-height: 1.05; letter-spacing: 0; }
    .classroom-hero .lead { max-width: min(760px, 100%); margin: 14px 0 0; color: rgba(255,255,255,.68); font-size: clamp(16px, 2vw, 19px); line-height: 1.55; letter-spacing: 0; overflow-wrap: anywhere; }
    .lesson-tabs, .number-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
    .lesson-tabs { margin: 16px 0 10px; }
    .tab-button, .number-tab { min-height: 42px; padding: 9px 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; background: rgba(255,255,255,.08); color: rgba(255,255,255,.88); font: inherit; font-weight: 850; cursor: pointer; }
    .tab-button.active, .number-tab.active { background: rgba(255,255,255,.92); color: #05070b; border-color: rgba(255,255,255,.92); }
    .classroom-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 16px; align-items: start; padding-bottom: 62px; }
    .number-panel, .game-panel { border: 1px solid rgba(255,255,255,.12); border-radius: 8px; background: rgba(255,255,255,.075); box-shadow: 0 26px 80px rgba(0,0,0,.24); backdrop-filter: blur(18px); }
    .number-panel { position: relative; z-index: 2; overflow: auto; padding: 12px; }
    .number-tabs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .number-tab { display: grid; align-content: center; min-height: 58px; border-radius: 8px; text-align: left; text-decoration: none; }
    .number-tab.empty, .number-tab:disabled { opacity: .42; cursor: not-allowed; }
    .number-tab small { display: block; margin-top: 2px; overflow: hidden; color: currentColor; opacity: .66; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
    .game-panel { position: relative; z-index: 1; overflow: hidden; scroll-margin-top: 88px; }
    .game-meta { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 18px; border-bottom: 1px solid rgba(255,255,255,.10); }
    .game-meta h2 { margin: 0; color: rgba(255,255,255,.94); font-size: clamp(24px, 3vw, 36px); letter-spacing: 0; }
    .game-meta p { margin: 5px 0 0; color: rgba(255,255,255,.60); }
    .play-link { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 9px 14px; border-radius: 999px; background: rgba(255,255,255,.92); color: #05070b; font-weight: 850; text-decoration: none; white-space: nowrap; }
    .game-frame-wrap { min-height: 0; background: transparent; }
    .empty-note { padding: 18px; color: rgba(255,255,255,.64); line-height: 1.6; }
    .game-launch-ad { margin-top: 26px; margin-bottom: 62px; }
    .game-launch-main { padding-bottom: 52px; }
    .game-launch-page .shell { width: min(1120px, calc(100% - 40px)); max-width: 1120px; }
    .game-launch-card { box-sizing: border-box; display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 100%; gap: 16px; margin: 0 0 42px; padding: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,.12); border-radius: 8px; background: rgba(255,255,255,.075); }
    .game-launch-card > div { min-width: 0; }
    .game-launch-card strong { display: block; color: rgba(255,255,255,.94); font-size: clamp(22px, 3vw, 32px); }
    .game-launch-card p { margin: 5px 0 0; color: rgba(255,255,255,.62); line-height: 1.55; overflow-wrap: anywhere; }
    @media (max-width: 780px) { .classroom-hero { padding-top: 26px; } .classroom-grid { grid-template-columns: 1fr; } .number-panel { position: static; max-height: none; } .number-tabs { grid-template-columns: repeat(5, minmax(0, 1fr)); } .number-tab { min-height: 54px; padding: 8px 6px; text-align: center; } .game-meta { align-items: stretch; flex-direction: column; } .game-launch-page .shell { width: calc(100% - 28px); max-width: 100%; } .game-launch-card { align-items: stretch; flex-direction: column; } .game-launch-card .play-link { box-sizing: border-box; width: 100%; max-width: 100%; } }