:root {
    --bg: #f4efe4;
    --panel: #fffaf2;
    --panel-strong: #efe1c6;
    --ink: #23180f;
    --muted: #6d5a47;
    --line: #d8c3a1;
    --accent: #a34a28;
    --accent-dark: #7f3217;
    --shadow: 0 18px 45px rgba(73, 45, 19, 0.12);
    --radius: 22px;
    --max: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top, rgba(163, 74, 40, 0.16), transparent 32%),
        linear-gradient(180deg, #f8f2e8 0%, var(--bg) 55%, #eadbc1 100%);
    min-height: 100vh;
}

a {
    color: inherit;
}

.site-shell,
.page-shell {
    width: min(calc(100% - 2rem), var(--max));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    background: rgba(248, 242, 232, 0.9);
    border-bottom: 1px solid rgba(216, 195, 161, 0.8);
}

.site-header .site-shell {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.brand {
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.04em;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: flex-end;
}

.site-nav a {
    text-decoration: none;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    color: var(--muted);
    transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.site-nav a[aria-current="page"] {
    background: var(--ink);
    color: #fff;
}

.page-shell {
    padding: 2rem 0 4rem;
}

.home-stage {
    position: relative;
    padding: 3.3rem 3.6rem 3.6rem;
}

.home-stage-track {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.home-stage-lane,
.home-stage-curve {
    position: absolute;
    border-color: rgba(163, 74, 40, 0.34);
    border-style: dashed;
    filter: drop-shadow(0 10px 18px rgba(73, 45, 19, 0.08));
}

.home-stage-lane {
    border-width: 0;
}

.home-stage-lane-top,
.home-stage-lane-bottom {
    left: 4.8rem;
    right: 4.8rem;
    height: 0;
    border-top-width: 5px;
}

.home-stage-lane-top {
    top: 1.45rem;
}

.home-stage-lane-bottom {
    bottom: 1.5rem;
}

.home-stage-lane-left,
.home-stage-lane-right {
    top: 4.8rem;
    bottom: 4.8rem;
    width: 0;
    border-left-width: 5px;
}

.home-stage-lane-left {
    left: 1.45rem;
}

.home-stage-lane-right {
    right: 1.45rem;
}

.home-stage-curve {
    width: 6.4rem;
    height: 6.4rem;
    border-width: 5px;
    border-radius: 50%;
}

.home-stage-curve-top-left {
    top: 1.25rem;
    left: 1.25rem;
    border-right-width: 0;
    border-bottom-width: 0;
}

.home-stage-curve-top-right {
    top: 1.25rem;
    right: 1.25rem;
    border-left-width: 0;
    border-bottom-width: 0;
}

.home-stage-curve-bottom-right {
    right: 1.25rem;
    bottom: 1.25rem;
    border-left-width: 0;
    border-top-width: 0;
}

.home-stage-curve-bottom-left {
    left: 1.25rem;
    bottom: 1.25rem;
    border-right-width: 0;
    border-top-width: 0;
}

.home-stage-marker {
    position: absolute;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 249, 240, 0.96);
    border: 1px solid rgba(216, 195, 161, 0.92);
    color: var(--accent-dark);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    box-shadow: 0 10px 18px rgba(73, 45, 19, 0.08);
}

.home-stage-marker-start {
    top: 0.35rem;
    left: 5rem;
}

.home-stage-marker-finish {
    right: 4.9rem;
    bottom: 0.35rem;
}

.home-stage-sprite {
    position: absolute;
    width: 4.8rem;
    height: 4.8rem;
    object-fit: contain;
    image-rendering: pixelated;
    filter: drop-shadow(0 12px 18px rgba(73, 45, 19, 0.16));
}

.home-stage-sprite-runner {
    top: -0.15rem;
    right: 7.4rem;
    animation: home-runner-drift 6.2s ease-in-out infinite;
}

.home-stage-sprite-column {
    left: -0.1rem;
    top: 8.6rem;
    width: 5.1rem;
    height: 5.1rem;
    animation: home-side-bob 4.6s ease-in-out infinite;
}

.home-stage-sprite-colosseum {
    right: -0.4rem;
    bottom: 7.1rem;
    width: 5.2rem;
    height: 5.2rem;
    animation: home-side-bob 5.1s ease-in-out infinite reverse;
}

.home-stage-sprite-soldier {
    left: 6.3rem;
    bottom: -0.35rem;
    width: 4.9rem;
    height: 4.9rem;
    animation: home-march-left 5.4s ease-in-out infinite;
}

.home-stage-sprite-coins {
    top: 0.1rem;
    left: 9.8rem;
    width: 4.6rem;
    height: 4.6rem;
    animation: home-coin-spin 5.8s ease-in-out infinite;
}

.home-stage-sprite-owl {
    right: 8.8rem;
    bottom: -0.2rem;
    width: 4.7rem;
    height: 4.7rem;
    animation: home-owl-hop 4.9s ease-in-out infinite;
}

.hero-card,
.content-card {
    background: rgba(255, 250, 242, 0.92);
    border: 1px solid rgba(216, 195, 161, 0.9);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-card {
    padding: 1.2rem 1.4rem;
    margin-bottom: 1rem;
    overflow: hidden;
    position: relative;
}

.hero-card::after {
    content: "";
    position: absolute;
    inset: auto -2rem -3rem auto;
    width: 16rem;
    height: 16rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(163, 74, 40, 0.14), transparent 65%);
}

.content-card {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.master-shell {
    background: rgba(255, 249, 240, 0.98);
}

.shell-title {
    margin-bottom: 1rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid rgba(216, 195, 161, 0.9);
}

.shell-title .eyebrow {
    margin-bottom: 0.35rem;
}

.shell-title h2 {
    margin: 0;
}

.section-heading {
    margin-bottom: 1.1rem;
}

.section-heading p {
    margin: 0.45rem 0 0;
    color: var(--muted);
    line-height: 1.6;
    max-width: 65ch;
}

.home-bucket {
    scroll-margin-top: 6rem;
}

.bucket-header-card {
    margin-top: 0.5rem;
}

.pathway-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.pathway-card {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 8rem;
    padding: 1rem;
    border-radius: 20px;
    text-decoration: none;
    background: linear-gradient(180deg, rgba(255, 248, 236, 1), rgba(244, 233, 214, 1));
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    text-align: center;
}

.pathway-card-featured {
    background: linear-gradient(180deg, #bc5b36 0%, #8f391b 100%);
    border-color: #9c4a2c;
}

.pathway-card-featured .pathway-label {
    color: #fff8ef;
}

.pathway-label {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink);
}

.eyebrow,
.mini-label {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--accent);
    font-size: 0.72rem;
    margin: 0 0 0.35rem;
}

h1,
h2,
h3,
p,
ul,
blockquote {
    margin-top: 0;
}

h1 {
    font-size: clamp(1.6rem, 4vw, 2.7rem);
    line-height: 1;
    max-width: 12ch;
    margin-bottom: 0.35rem;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.3rem);
    margin-bottom: 0.4rem;
}

.lead,
.intro-copy,
.site-footer p,
.study-card p,
.timeline-item p,
li {
    color: var(--muted);
    line-height: 1.55;
}

.lead {
    font-size: 0.95rem;
    max-width: 62ch;
    margin-bottom: 0;
}

.student-note {
    max-width: 58rem;
    margin-top: 1.4rem;
    padding: 1rem 1.1rem;
    border-radius: 18px;
    background: rgba(255, 247, 233, 0.92);
    border: 1px solid var(--line);
}

.student-note h2 {
    font-size: 1.2rem;
}

.activity-button-grid,
.card-grid,
.comparison-grid,
.tool-grid,
.match-columns,
.match-stack {
    display: grid;
    gap: 1rem;
}

.activity-button-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin-top: 1.3rem;
}

.activity-link {
    min-height: 4.25rem;
    font-size: 1rem;
    padding: 1rem 1.15rem;
}

.activity-link.is-active-tool {
    background: var(--ink);
}

.card-grid,
.comparison-grid,
.tool-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.match-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
}

.match-stack {
    grid-template-columns: 1fr;
}

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.35rem;
    border: 0;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    padding: 0.85rem 1.2rem;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease, background-color 0.18s ease;
}

.button.secondary {
    background: transparent;
    color: var(--accent-dark);
    border: 1px solid var(--line);
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
}

.button:disabled {
    cursor: not-allowed;
    opacity: 0.52;
    transform: none;
    box-shadow: none;
}

.study-card,
.timeline-item,
.check-box {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1rem;
}

.tool-shell {
    background: linear-gradient(180deg, rgba(255, 248, 236, 0.98), rgba(250, 241, 225, 0.96));
}

.launcher-shell {
    background: linear-gradient(180deg, rgba(255, 249, 240, 0.98), rgba(244, 233, 214, 0.96));
}

.section-sprite-stage {
    position: relative;
    margin-top: 1.4rem;
    height: 5.2rem;
    padding: 0.15rem 0;
    border-top: 2px dashed rgba(163, 74, 40, 0.28);
    overflow: hidden;
}

.section-sprite-stage::before {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 1.1rem;
    background: linear-gradient(180deg, rgba(222, 195, 150, 0.1), rgba(183, 139, 83, 0.18));
    border-radius: 999px;
    pointer-events: none;
}

.section-traveler {
    --traveler-size: 3.2rem;
    --traveler-lane: 0.5rem;
    --traveler-duration: 9s;
    --traveler-bounce: 0.34rem;
    position: absolute;
    bottom: var(--traveler-lane);
    z-index: 1;
    width: var(--traveler-size);
    height: var(--traveler-size);
    object-fit: contain;
    image-rendering: pixelated;
    filter: drop-shadow(0 10px 16px rgba(73, 45, 19, 0.14));
    pointer-events: none;
}

.section-traveler.is-left-to-right {
    left: calc(var(--traveler-size) * -1.25);
    animation: traveler-cross-right var(--traveler-duration) linear forwards, traveler-bounce 0.88s ease-in-out infinite;
}

.section-traveler.is-right-to-left {
    right: calc(var(--traveler-size) * -1.25);
    animation: traveler-cross-left var(--traveler-duration) linear forwards, traveler-bounce 0.94s ease-in-out infinite;
}

.has-tool-popover-open {
    overflow: hidden;
}

.tool-popover {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.tool-popover[hidden] {
    display: none;
}

.tool-popover-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(35, 24, 15, 0.35);
    backdrop-filter: blur(8px);
}

.tool-popover-dialog {
    position: relative;
    width: min(980px, calc(100vw - 1.25rem));
    max-height: calc(100vh - 1.25rem);
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: rgba(255, 250, 242, 0.99);
    box-shadow: 0 24px 54px rgba(35, 24, 15, 0.22);
}

.tool-popover-head {
    display: flex;
    justify-content: flex-end;
    padding: 1rem 1rem 0;
}

.tool-popover-body {
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
    padding: 1.2rem;
    color: var(--ink);
}

.inline-tool-panel .tool-shell,
.inline-tool-panel .content-card {
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
    margin-bottom: 0;
}

.tool-card {
    min-height: 100%;
}

.flashcard {
    width: 100%;
    min-height: 18rem;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    perspective: 1400px;
}

.flashcard:hover,
.flashcard:focus-visible {
    transform: none;
    box-shadow: none;
}

.flashcard-inner {
    position: relative;
    display: block;
    width: 100%;
    min-height: 18rem;
    transform-style: preserve-3d;
    transition: transform 0.6s ease;
}

.flashcard.is-flipped .flashcard-inner {
    transform: rotateY(180deg);
}

.flashcard-face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1.4rem;
    border-radius: 22px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    text-align: center;
}

.flashcard-face-front {
    background: linear-gradient(180deg, #bc5b36 0%, #8f391b 100%);
    color: #fff8ef;
}

.flashcard-face-back {
    background: linear-gradient(180deg, #fff8ef 0%, #f3e5ca 100%);
    color: var(--ink);
    transform: rotateY(180deg);
}

.flashcard-label {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.86rem;
    font-weight: 700;
    opacity: 0.85;
}

.flashcard-main {
    font-size: clamp(2rem, 4vw, 2.9rem);
    font-weight: 700;
    line-height: 1.05;
}

.flashcard-main-small {
    font-size: clamp(1.35rem, 3vw, 1.95rem);
    line-height: 1.35;
}

.flashcard-hint {
    font-size: 1.05rem;
    opacity: 0.85;
}

.flashcard-example {
    color: #5a4636;
    font-size: 1.08rem;
    line-height: 1.5;
    max-width: 36ch;
}

.tool-term {
    font-size: 1.35rem;
    color: var(--ink);
    font-weight: 700;
}

.tool-detail {
    color: var(--ink);
    font-size: 1.02rem;
}

.tool-counter,
.tool-instructions {
    color: #584536;
    font-size: 1.02rem;
    font-weight: 600;
}

.lightning-tool {
    display: grid;
    gap: 1rem;
}

.circus-tool {
    display: grid;
    gap: 1rem;
}

.race-timer {
    justify-self: center;
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    background: rgba(255, 244, 220, 0.96);
    border: 1px solid rgba(216, 195, 161, 0.95);
    color: var(--accent-dark);
    box-shadow: 0 8px 18px rgba(73, 45, 19, 0.08);
}

.circus-track {
    --track-pad: 0.7rem;
    --racer-size: 3.35rem;
    --racer-lift: 0.72rem;
    position: relative;
    height: 5.7rem;
    border-radius: 999px;
    overflow: visible;
    background:
        linear-gradient(180deg, rgba(187, 151, 104, 0.9), rgba(150, 113, 66, 0.95));
    border: 1px solid rgba(127, 50, 23, 0.18);
}

.circus-track.is-finished {
    box-shadow: inset 0 0 0 2px rgba(255, 241, 194, 0.55), 0 0 0 3px rgba(163, 74, 40, 0.12);
}

.circus-track-lane {
    position: absolute;
    inset: 0.78rem 0.7rem 0.72rem;
    z-index: 1;
    border-radius: 999px;
    border: 3px solid rgba(255, 248, 239, 0.78);
}

.circus-track-spine {
    position: absolute;
    left: 50%;
    top: 1rem;
    bottom: 1rem;
    width: 18%;
    z-index: 2;
    transform: translateX(-50%);
    border-radius: 999px;
    background: rgba(110, 73, 40, 0.32);
}

.circus-track-racer {
    position: absolute;
    bottom: var(--racer-lift);
    left: 0;
    width: var(--racer-size);
    height: var(--racer-size);
    z-index: 20;
    transform: translateX(-50%);
    transition: left 0.42s cubic-bezier(0.22, 0.8, 0.26, 1);
    pointer-events: none;
}

.circus-track-racer-practice {
    --racer-size: 3rem;
    --racer-lift: 0.84rem;
}

.circus-track-racer::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0.2rem;
    width: 2.1rem;
    height: 0.62rem;
    border-radius: 50%;
    transform: translateX(-50%);
    background: rgba(47, 28, 14, 0.3);
    filter: blur(3px);
}

.circus-track-finish {
    position: absolute;
    right: 0.8rem;
    top: 0.45rem;
    bottom: 0.55rem;
    width: 2.85rem;
    z-index: 3;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    pointer-events: none;
}

.circus-track-finish-label {
    position: absolute;
    top: 0.05rem;
    right: 0.15rem;
    padding: 0.2rem 0.42rem;
    border-radius: 999px;
    background: rgba(255, 248, 239, 0.92);
    color: var(--accent-dark);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    box-shadow: 0 8px 16px rgba(73, 45, 19, 0.12);
}

.circus-track-finish-post {
    position: absolute;
    right: 0.8rem;
    top: 1rem;
    bottom: 0.45rem;
    width: 0.34rem;
    border-radius: 999px;
    background: linear-gradient(180deg, #f8ecd3, #b78b53);
    box-shadow: inset 0 0 0 1px rgba(73, 45, 19, 0.14);
}

.circus-track-finish-post::before {
    content: "";
    position: absolute;
    top: 0.12rem;
    right: 100%;
    width: 1.1rem;
    height: 0.85rem;
    clip-path: polygon(0 0, 100% 20%, 76% 100%, 0 84%);
    background: linear-gradient(180deg, #d66d49, #9f3921);
    box-shadow: 0 6px 12px rgba(73, 45, 19, 0.14);
}

.circus-track.is-finished .circus-track-finish-label,
.circus-track.is-finished .circus-track-finish-post::before {
    background: linear-gradient(180deg, #ffe7a8, #f6bd52);
    color: #5a3a13;
}

.circus-track-burst {
    position: absolute;
    top: 50%;
    left: 0;
    width: 4rem;
    height: 4rem;
    z-index: 21;
    transform: translate(-50%, -52%) scale(0.35);
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
}

.circus-track-burst::before,
.circus-track-burst::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
}

.circus-track-burst::before {
    background:
        radial-gradient(circle, rgba(255, 228, 175, 0.88) 0 18%, transparent 19% 100%),
        conic-gradient(from 0deg, #ffd36e 0deg 32deg, transparent 32deg 60deg, #f7a64c 60deg 92deg, transparent 92deg 120deg, #d66d49 120deg 152deg, transparent 152deg 180deg, #ffd36e 180deg 212deg, transparent 212deg 240deg, #f7a64c 240deg 272deg, transparent 272deg 300deg, #d66d49 300deg 332deg, transparent 332deg 360deg);
    filter: blur(0.2px);
}

.circus-track-burst::after {
    inset: 0.7rem;
    background: radial-gradient(circle, rgba(255, 248, 239, 0.95), rgba(255, 248, 239, 0));
}

.circus-track-burst.is-live {
    animation: circus-burst 0.55s ease-out forwards;
}

.circus-track-burst.is-finish {
    width: 5rem;
    height: 5rem;
}

.circus-track-burst.is-finish.is-live {
    animation: circus-burst-finish 0.9s ease-out forwards;
}

.circus-track-racer-sprite {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: pixelated;
    filter: drop-shadow(0 8px 10px rgba(35, 24, 15, 0.18));
    animation: circus-bob 0.8s steps(2, end) infinite;
}

.circus-track-racer.is-moving .circus-track-racer-sprite {
    animation: circus-run 0.42s steps(3, end) 1, circus-bob 0.8s steps(2, end) infinite 0.42s;
}

.circus-track-racer.is-moving::after {
    animation: circus-shadow-run 0.42s ease-out 1;
}

@keyframes circus-bob {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-0.18rem);
    }
}

@keyframes circus-run {
    0%,
    100% {
        transform: translateY(0) scale(1);
    }

    50% {
        transform: translateY(-0.18rem) scale(1.04);
    }
}

@keyframes circus-shadow-run {
    0%,
    100% {
        transform: translateX(-50%) scaleX(1);
        opacity: 1;
    }

    50% {
        transform: translateX(-50%) scaleX(1.14);
        opacity: 0.82;
    }
}

@keyframes circus-burst {
    0% {
        opacity: 0;
        transform: translate(-50%, -52%) scale(0.35);
    }

    20% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: translate(-50%, -52%) scale(1.18);
    }
}

@keyframes circus-burst-finish {
    0% {
        opacity: 0;
        transform: translate(-50%, -52%) scale(0.25);
    }

    18% {
        opacity: 1;
    }

    60% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: translate(-50%, -52%) scale(1.42);
    }
}

.lightning-head,
.lightning-options {
    display: grid;
    gap: 0.8rem;
}

.lightning-head {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lightning-options {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.lightning-question {
    margin: 0;
    font-size: clamp(1.35rem, 3vw, 1.9rem);
    line-height: 1.3;
    color: var(--ink);
}

.lightning-option {
    text-align: center;
    min-height: 4.8rem;
    padding: 1rem;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.35;
}

.tool-button-grid .activity-link {
    min-height: 5rem;
    font-size: 1.02rem;
}

.table-match-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    padding: 0.5rem 0 0.25rem;
}

.table-match-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.table-match-stack {
    position: relative;
    width: 4.5rem;
    height: 5.75rem;
    flex: 0 0 auto;
}

.table-match-stack-card {
    position: absolute;
    inset: 0;
    border-radius: 14px;
    border: 1px solid rgba(127, 50, 23, 0.16);
    box-shadow: 0 10px 18px rgba(73, 45, 19, 0.12);
}

.table-match-stack-card-back {
    transform: rotate(-8deg) translate(-0.2rem, 0.15rem);
    background: rgba(143, 57, 27, 0.26);
}

.table-match-stack-card-mid {
    transform: rotate(4deg) translate(0.15rem, 0.05rem);
    background: rgba(188, 91, 54, 0.35);
}

.table-match-stack-card-front {
    background: linear-gradient(180deg, rgba(255, 252, 247, 0.98), rgba(246, 236, 217, 0.98));
}

.table-match-readout {
    display: grid;
    gap: 0.35rem;
}

.table-match-card {
    min-height: 9.5rem;
    padding: 1rem;
    border-radius: 18px;
    border: 1px solid rgba(127, 50, 23, 0.16);
    background:
        linear-gradient(180deg, rgba(255, 252, 247, 0.98), rgba(246, 236, 217, 0.98));
    box-shadow:
        0 12px 22px rgba(73, 45, 19, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transform: rotate(var(--card-rotate, 0deg));
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.22s ease, background-color 0.22s ease;
}

.table-match-card.table-match-card-term {
    background:
        linear-gradient(180deg, rgba(188, 91, 54, 0.98), rgba(143, 57, 27, 0.98));
    color: #fff8ef;
}

.table-match-card.table-match-card-definition {
    color: var(--ink);
}

.table-match-card:hover,
.table-match-card:focus-visible {
    transform: rotate(var(--card-rotate, 0deg)) translateY(-2px);
}

.table-match-card.is-selected {
    box-shadow:
        0 0 0 3px rgba(163, 74, 40, 0.22),
        0 12px 22px rgba(73, 45, 19, 0.16);
}

.table-match-card.is-incorrect {
    background: linear-gradient(180deg, rgba(177, 56, 42, 0.96), rgba(132, 35, 26, 0.98));
    color: #fff8ef;
    box-shadow:
        0 0 0 3px rgba(177, 56, 42, 0.32),
        0 0 24px rgba(177, 56, 42, 0.3);
}

.table-match-card.is-correct {
    background: linear-gradient(180deg, rgba(122, 88, 191, 0.96), rgba(90, 52, 155, 0.98));
    color: #fff8ef;
    box-shadow:
        0 0 0 3px rgba(122, 88, 191, 0.28),
        0 0 28px rgba(122, 88, 191, 0.28);
}

.table-match-card.is-fading {
    opacity: 0;
    transform: rotate(var(--card-rotate, 0deg)) scale(0.94);
}

.table-match-card-text {
    display: block;
    font-size: 1.06rem;
    font-weight: 700;
    line-height: 1.35;
    text-align: center;
}

.match-chip {
    width: 100%;
    text-align: left;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem 1rem;
    background: #fbf5ea;
    color: var(--ink);
    font: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.35;
    cursor: pointer;
}

.match-chip.is-selected {
    border-color: var(--accent);
    background: #f2dfd5;
}

.concept-grid,
.practice-support-grid,
.question-list {
    display: grid;
    gap: 1rem;
}

.concept-grid,
.practice-support-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.concept-card,
.prompt-card,
.dropdown-question {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1rem;
}

.card-list {
    color: var(--muted);
    line-height: 1.55;
    padding-left: 1.2rem;
    margin-bottom: 0;
}

.question-label {
    display: block;
    margin-bottom: 0.65rem;
    font-weight: 700;
    line-height: 1.55;
    font-size: 1.08rem;
    color: var(--ink);
}

.answer-select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 0.95rem 1rem;
    background: #fffdf8;
    font: inherit;
    color: var(--ink);
    font-size: 1rem;
}

.answer-select.is-correct {
    border-color: #1a6b35;
}

.answer-select.is-incorrect {
    border-color: #8e2d22;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1rem;
}

.score-banner {
    margin: 0;
    font-weight: 700;
    font-size: 1.02rem;
}

.score-banner[data-state="correct"] {
    color: #1a6b35;
}

.score-banner[data-state="incorrect"] {
    color: #8e2d22;
}

.response-box {
    width: 100%;
    resize: vertical;
    min-height: 8rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 0.9rem 1rem;
    font: inherit;
    background: #fffdf8;
    font-size: 1.02rem;
    line-height: 1.55;
}

.question-card details,
.concept-card details,
.prompt-card details,
.dropdown-question details {
    margin-top: 0.9rem;
}

.tool-dropdown {
    margin-top: 0.9rem;
    border: 1px solid rgba(216, 195, 161, 0.95);
    border-radius: 16px;
    background: rgba(255, 252, 247, 0.96);
    overflow: hidden;
}

.tool-dropdown summary {
    padding: 0.9rem 1rem;
    list-style: none;
}

.tool-dropdown summary::-webkit-details-marker {
    display: none;
}

.tool-dropdown-body {
    padding: 0 1rem 1rem;
}

.vocab-word-list {
    margin: 0;
    padding-left: 1.2rem;
    display: grid;
    gap: 0.55rem;
}

.vocab-word-list li {
    color: var(--ink);
}

@keyframes home-runner-drift {
    0%,
    100% {
        transform: translateY(0) rotate(-2deg);
    }

    50% {
        transform: translateY(-0.25rem) rotate(2deg);
    }
}

@keyframes home-side-bob {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-0.22rem);
    }
}

@keyframes home-march-left {
    0%,
    100% {
        transform: translateX(0) translateY(0) rotate(0deg);
    }

    35% {
        transform: translateX(0.3rem) translateY(-0.08rem) rotate(1deg);
    }

    70% {
        transform: translateX(-0.28rem) translateY(-0.18rem) rotate(-2deg);
    }
}

@keyframes home-coin-spin {
    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-0.26rem) rotate(6deg);
    }
}

@keyframes home-owl-hop {
    0%,
    100% {
        transform: translateY(0);
    }

    30% {
        transform: translateY(-0.18rem) rotate(-2deg);
    }

    65% {
        transform: translateY(-0.34rem) rotate(2deg);
    }
}

@keyframes traveler-cross-right {
    0% {
        left: calc(var(--traveler-size) * -1.25);
    }

    100% {
        left: calc(100% + var(--traveler-size) * 0.25);
    }
}

@keyframes traveler-cross-left {
    0% {
        right: calc(var(--traveler-size) * -1.25);
    }

    100% {
        right: calc(100% + var(--traveler-size) * 0.25);
    }
}

@keyframes traveler-bounce {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(calc(var(--traveler-bounce) * -1));
    }
}

summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--accent-dark);
}

.study-card blockquote {
    font-size: 1.15rem;
    line-height: 1.5;
    color: var(--ink);
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
}

.pill-grid,
.choice-list,
.question-stack,
.timeline {
    display: grid;
    gap: 1rem;
}

.pill-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 3.5rem;
    padding: 0.8rem 1rem;
    border-radius: 999px;
    background: var(--panel-strong);
    color: var(--ink);
    font-weight: 700;
}

.pair-grid {
    display: grid;
    gap: 0.65rem;
}

.pair-row {
    display: grid;
    grid-template-columns: minmax(120px, 1fr) minmax(180px, 2fr);
    gap: 0.8rem;
    padding: 0.75rem 0.9rem;
    border-radius: 14px;
    background: #fbf5ea;
}

.question-card textarea {
    width: 100%;
    resize: vertical;
    min-height: 8rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 0.9rem 1rem;
    font: inherit;
    background: #fffdf8;
}

.choice-item {
    display: flex;
    gap: 0.7rem;
    align-items: flex-start;
    padding: 0.85rem 0.9rem;
    border-radius: 14px;
    background: #fbf5ea;
}

.question-actions {
    display: flex;
    gap: 0.75rem;
    margin: 1rem 0 0.7rem;
    flex-wrap: wrap;
}

.next-action-row {
    justify-content: center;
}

.next-action-row .next-action-button {
    min-width: 10rem;
}

.next-action-row .next-action-button.is-ready {
    background: linear-gradient(180deg, #f2b43c 0%, #dc7f19 100%);
    color: #fffdf6;
    border-color: rgba(220, 127, 25, 0.75);
    box-shadow: 0 0 0 3px rgba(242, 180, 60, 0.18), 0 0 22px rgba(242, 180, 60, 0.42);
}

.feedback[data-state="correct"] {
    color: #1a6b35;
    font-size: 1.02rem;
    font-weight: 700;
}

.feedback[data-state="incorrect"] {
    color: #8e2d22;
    font-size: 1.02rem;
    font-weight: 700;
}

.feedback[data-state="pending"] {
    color: #7a5b18;
    font-size: 1.02rem;
    font-weight: 700;
}

.answer-key {
    color: var(--ink);
    font-weight: 700;
}

.site-footer {
    border-top: 1px solid rgba(216, 195, 161, 0.85);
    padding: 1.5rem 0 2rem;
}

@media (max-width: 820px) {
    .section-sprite-stage {
        margin-top: 1.1rem;
        height: 4.35rem;
        padding-top: 0.05rem;
    }

    .home-stage {
        padding: 2.6rem 1rem 1.4rem;
    }

    .home-stage-lane-top,
    .home-stage-lane-bottom {
        left: 2.75rem;
        right: 2.75rem;
    }

    .home-stage-lane-left,
    .home-stage-lane-right {
        top: 3.8rem;
        bottom: 3.8rem;
    }

    .home-stage-curve {
        width: 4.6rem;
        height: 4.6rem;
    }

    .home-stage-marker-start {
        left: 2.9rem;
    }

    .home-stage-marker-finish {
        right: 2.8rem;
    }

    .home-stage-sprite-column,
    .home-stage-sprite-colosseum,
    .home-stage-sprite-coins {
        display: none;
    }

    .home-stage-sprite-runner {
        right: 3.2rem;
        width: 4rem;
        height: 4rem;
    }

    .home-stage-sprite-soldier {
        left: 3rem;
        width: 4.1rem;
        height: 4.1rem;
    }

    .home-stage-sprite-owl {
        right: 3.1rem;
        width: 4rem;
        height: 4rem;
    }

    .site-header .site-shell {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-nav {
        justify-content: flex-start;
    }

    .hero-card,
    .content-card {
        padding: 1.2rem;
    }

    .pair-row {
        grid-template-columns: 1fr;
    }

    .match-columns {
        grid-template-columns: 1fr;
    }

    .flashcard,
    .flashcard-inner {
        min-height: 15rem;
    }

    .lightning-head {
        grid-template-columns: 1fr;
    }

    .tool-button-grid .activity-link,
    .activity-link {
        min-height: 4.5rem;
    }

    .table-match-board {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .table-match-card {
        min-height: 8.5rem;
    }

    .table-match-meta {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .button,
    .site-nav a {
        transition: none;
    }
}