.literacy-adventure-game {
    min-height: 100dvh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    background:
        linear-gradient(rgba(30, 41, 59, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 41, 59, .035) 1px, transparent 1px),
        #f2ead8;
    background-size: 24px 24px;
    color: #172033;
}
.literacy-adventure-game > .literacy-adventure-header {
    position: sticky;
    top: 0;
    z-index: 30;
    width: 100%;
    box-sizing: border-box;
    flex: 0 0 auto;
    min-height: 108px;
    padding: 12px 26px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
    background: #fffdf7;
    border-bottom: 5px solid #d6a83f;
    box-shadow: 0 10px 28px rgba(15, 23, 42, .14);
}
.literacy-adventure-header .aiedue-lab-brand p { color: #7a4c2a !important; }
.literacy-adventure-header .aiedue-lab-brand h1 { color: #3f2d20 !important; }
.literacy-adventure-hud { display: flex; align-items: center; gap: 9px; font-weight: 900; }
.literacy-adventure-hud span,
.literacy-adventure-hud strong { padding: 10px 14px; border: 2px solid #cbd5e1; border-radius: 999px; background: #fff; color: #172033; }
.literacy-adventure-hud strong { border-color: #e7c66d; color: #6d431f; background: #fff8df; }
.literacy-adventure-layout {
    width: min(1140px, calc(100% - 36px));
    margin: 22px auto 34px;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
    gap: 20px;
    align-items: stretch;
}
.literacy-adventure-layout > section {
    min-width: 0;
    min-height: 520px;
    box-sizing: border-box;
    padding: 26px;
    border: 1px solid #d7d2c7;
    border-radius: 18px;
    background: #fffdf7;
    box-shadow: 0 16px 34px rgba(15, 23, 42, .12);
}
.literacy-adventure-layout h2 { margin: 0; color: #172033; font: 950 clamp(1.35rem, 2vw, 1.8rem)/1.25 inherit; }
.literacy-adventure-kicker { margin: 0 0 7px; color: #7a4c2a; font-size: .78rem; font-weight: 950; letter-spacing: .16em; }
.literacy-adventure-passage { position: relative; overflow: hidden; }
.literacy-adventure-passage::before { content: ''; position: absolute; top: 0; bottom: 0; left: 12px; width: 1px; background: #dfc98f; }
.literacy-detective-guide { display: grid; grid-template-columns: 76px minmax(0, 1fr); align-items: center; gap: 12px; margin: 13px 0; padding: 9px 13px 9px 7px; border: 2px solid #dfc98f; border-radius: 15px; background: #fff8df; overflow: hidden; }
.literacy-detective-guide img { width: 76px; height: 86px; object-fit: cover; object-position: center 7%; mix-blend-mode: multiply; transition: transform .24s ease; }
.literacy-detective-guide p { display: grid; gap: 3px; margin: 0; line-height: 1.4; }
.literacy-detective-guide strong { color: #5b371e; font-size: .9rem; }
.literacy-detective-guide span { color: #475569; font-size: .82rem; font-weight: 800; }
.literacy-adventure-game.has-response .literacy-detective-guide img { transform: rotate(-3deg) scale(1.06); }
.literacy-adventure-game.case-solved .literacy-detective-guide img { animation: detective-case-solved .55s ease both; }
.literacy-news-meta { display: flex; flex-wrap: wrap; gap: 7px; margin: 15px 0; }
.literacy-news-meta span { padding: 6px 10px; border-radius: 999px; background: #e2e8f0; color: #334155; font-size: .76rem; font-weight: 900; }
.literacy-news-instruction { margin: 0 0 14px; padding: 11px 13px; border-left: 4px solid #2f6f55; background: #eef8f0; color: #245842; font-weight: 850; line-height: 1.55; }
#literacy-adventure-passage { display: grid; gap: 11px; max-height: 470px; overflow-y: auto; padding: 3px 6px 3px 14px; border-radius: 12px; }
#literacy-adventure-passage:focus-visible { outline: 4px solid rgba(245, 158, 11, .42); outline-offset: 3px; }
.literacy-case-paragraph {
    margin: 0;
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    padding: 13px 14px;
    border: 1px solid #e1d8c7;
    border-radius: 12px;
    background: #fffefa;
    color: #283548;
    font: 750 1.02rem/1.75 inherit;
    box-shadow: 0 4px 10px rgba(61, 45, 31, .05);
}
.literacy-case-paragraph:nth-child(even) { background: #f7fbf7; }
.literacy-case-paragraph-marker { display: grid; place-items: center; width: 27px; height: 27px; margin-top: 2px; border-radius: 8px; background: #2f6f55; color: #fff; font-size: .68rem; font-weight: 950; letter-spacing: .04em; }
.literacy-adventure-answer { display: flex; flex-direction: column; scroll-margin-top: 184px; }
#literacy-adventure-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin: 15px 0; padding: 0; list-style: none; counter-reset: desk-step; }
#literacy-adventure-steps li { min-width: 0; padding: 9px 6px; border-bottom: 4px solid #cbd5e1; color: #64748b; text-align: center; font-size: .76rem; font-weight: 900; }
#literacy-adventure-steps li.active { border-color: #d6a83f; color: #7a4c2a; }
#literacy-adventure-steps li.done { border-color: #16a34a; color: #15803d; }
#literacy-adventure-question { margin: 4px 0 13px; color: #172033; font-size: 1.12rem; font-weight: 950; line-height: 1.55; }
#literacy-adventure-response-guide { margin: 0 0 14px; padding: 11px 13px; border-left: 4px solid #d6a83f; border-radius: 0 10px 10px 0; background: #fff8df; color: #6d431f; font-size: .88rem; font-weight: 850; line-height: 1.5; }
#literacy-adventure-options { display: grid; gap: 8px; }
#literacy-adventure-options button { width: 100%; display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 9px; align-items: center; padding: 10px 12px; border: 2px solid #d7d2c7; border-radius: 12px; background: #fff; color: #253247; text-align: left; cursor: pointer; }
#literacy-adventure-options button span { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 7px; background: #e2e8f0; font-weight: 950; }
#literacy-adventure-options button strong { font: 850 .92rem/1.4 inherit; }
#literacy-adventure-options button:hover { border-color: #85ae91; }
#literacy-adventure-options button.selected { border-color: #2f6f55; background: #eef8f0; }
#literacy-adventure-options button.selected span { background: #2f6f55; color: #fff; }
#literacy-adventure-input { width: 100%; min-height: 104px; box-sizing: border-box; padding: 13px; border: 2px solid #cbd5e1; border-radius: 12px; background: #fff; font: 750 .95rem/1.55 inherit; resize: vertical; }
#literacy-adventure-input[rows="2"] { min-height: 72px; }
#literacy-adventure-input[rows="6"] { min-height: 148px; }
#literacy-adventure-input:focus { border-color: #2f6f55; outline: 3px solid rgba(47, 111, 85, .16); }
#literacy-adventure-submit,
#literacy-adventure-restart,
#literacy-adventure-start { width: 100%; min-height: 48px; margin-top: 13px; padding: 12px 16px; border: 0; border-radius: 12px; color: #fff; background: #6d431f; font: 950 1rem inherit; cursor: pointer; box-shadow: 0 8px 17px rgba(76, 45, 24, .24); }
#literacy-adventure-submit:disabled { background: #94a3b8; box-shadow: none; cursor: not-allowed; }
#literacy-adventure-restart { background: #2f6f55; }
#literacy-adventure-feedback { display: grid; gap: 7px; margin-top: 12px; line-height: 1.5; }
#literacy-adventure-feedback strong { font-size: 1.15rem; }
#literacy-adventure-feedback span { font-weight: 800; }
#literacy-adventure-feedback small { padding-top: 7px; border-top: 1px solid currentColor; font-weight: 750; opacity: .86; }
#literacy-adventure-feedback.published { padding: 13px; border: 2px solid #86efac; border-radius: 12px; background: #f0fdf4; color: #166534; }
#literacy-adventure-feedback.revision { padding: 13px; border: 2px solid #fdba74; border-radius: 12px; background: #fff7ed; color: #9a3412; }
#literacy-adventure-feedback.checking { color: #1d4ed8; font-weight: 900; }
.literacy-adventure-overlay { position: absolute; inset: 0; z-index: 20; display: grid; place-items: center; padding: 22px; background: rgba(55, 39, 27, .76); backdrop-filter: blur(7px); }
.literacy-adventure-overlay > div { width: min(470px, 100%); box-sizing: border-box; padding: 25px 34px 30px; border-top: 9px solid #d6a83f; border-radius: 8px 8px 20px 20px; background: #fffdf7; text-align: center; box-shadow: 0 30px 70px rgba(42, 28, 18, .42); }
.literacy-detective-hero { display: block; width: 148px; height: 184px; margin: -12px auto -8px; object-fit: cover; object-position: center 6%; mix-blend-mode: multiply; }
.literacy-adventure-overlay h2 { margin: 8px 0; color: #172033; font-size: 2rem; }
.literacy-adventure-overlay p { color: #475569; font-weight: 800; line-height: 1.7; }
.literacy-adventure-game button:focus-visible { outline: 4px solid #f59e0b; outline-offset: 3px; }
@keyframes detective-case-solved { 0% { transform: scale(1); } 45% { transform: rotate(-5deg) scale(1.12); } 100% { transform: rotate(0) scale(1.04); } }
@media (prefers-reduced-motion: reduce) { .literacy-detective-guide img { transition: none; animation: none !important; } }
@media (max-width: 900px) {
    .literacy-adventure-layout { grid-template-columns: 1fr; }
    .literacy-adventure-layout > section { min-height: auto; }
    #literacy-adventure-passage { max-height: none; }
}
@media (max-width: 680px) {
    .literacy-adventure-header { grid-template-columns: auto minmax(0, 1fr); padding: 10px 12px; gap: 8px; }
    .literacy-adventure-header .aiedue-lab-brand h1 { font-size: 1rem; }
    .literacy-adventure-header .aiedue-lab-brand p { font-size: .58rem !important; }
    .literacy-adventure-hud { grid-column: 1 / -1; justify-content: center; }
    .literacy-adventure-hud span,
    .literacy-adventure-hud strong { padding: 7px 10px; font-size: .82rem; }
    .literacy-adventure-layout { width: calc(100% - 18px); margin: 10px auto 24px; gap: 12px; }
    .literacy-adventure-layout > section { padding: 18px 15px; border-radius: 14px; }
    .literacy-case-paragraph { grid-template-columns: 25px minmax(0, 1fr); gap: 8px; padding: 11px 9px; font-size: .95rem; }
    #literacy-adventure-steps li { font-size: .68rem; }
    .literacy-adventure-overlay > div { padding: 25px 18px; }
    .literacy-adventure-overlay h2 { font-size: 1.65rem; }
}