.number-practice-page { --number-practice-ink: color-mix(in oklab, var(--color-base-content) 90%, var(--color-primary)); --number-practice-line: color-mix(in oklab, var(--color-base-content) 14%, transparent); color: var(--number-practice-ink); }
.number-echo-page { --number-practice-accent: var(--color-primary); --number-practice-support: var(--color-secondary); }
.number-order-page { --number-practice-accent: var(--color-secondary); --number-practice-support: var(--color-primary); }
.number-difference-page { --number-practice-accent: var(--color-accent); --number-practice-support: var(--color-primary); }
.number-practice__hero-card { min-height: 22rem; border-radius: var(--radius-box); padding: clamp(1.5rem, 4vw, 2.5rem); background: linear-gradient(145deg, var(--number-practice-support), color-mix(in oklab, var(--number-practice-accent) 78%, var(--number-practice-support))); color: var(--color-secondary-content); box-shadow: 0 1.25rem 2.5rem color-mix(in oklab, var(--number-practice-support) 22%, transparent); transform: rotate(1deg); }
.number-practice__hero-listen { display: flex; align-items: center; justify-content: space-between; gap: .75rem; font-size: clamp(2.5rem, 7vw, 4.5rem); font-weight: 950; }
.number-practice__hero-listen span, .number-practice__hero-listen b { display: inline-flex; min-width: 4.5rem; min-height: 4.5rem; align-items: center; justify-content: center; border-radius: var(--radius-field); background: color-mix(in oklab, var(--color-secondary-content) 16%, transparent); }
.number-practice__hero-listen b { background: var(--color-accent); color: var(--color-accent-content); transform: rotate(-5deg); }
.number-practice__content { min-height: 38rem; }
.number-practice__wander-card { display: block; min-height: 14rem; width: 100%; border: 1px solid color-mix(in oklab, var(--number-practice-accent) 28%, var(--number-practice-line)); border-radius: var(--radius-box); padding: clamp(1.25rem, 3vw, 2rem); background: color-mix(in oklab, var(--number-practice-accent) 7%, var(--color-base-100)); color: var(--number-practice-ink); transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease; }
.number-practice__wander-card:hover { border-color: var(--number-practice-accent); transform: translateY(-.12rem); box-shadow: 0 .9rem 2rem color-mix(in oklab, var(--number-practice-accent) 12%, transparent); }
.number-practice__wander-mark { display: inline-flex; width: 3.5rem; height: 3.5rem; align-items: center; justify-content: center; border-radius: var(--radius-box); background: var(--number-practice-accent); color: var(--color-primary-content); font-size: 1.65rem; font-weight: 900; }
.number-practice__level-grid { display: grid; gap: .8rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.number-practice__level-button { display: flex; width: 100%; min-height: 9.5rem; align-items: center; gap: .8rem; border: 1px solid var(--number-practice-line); border-radius: var(--radius-field); padding: .9rem; background: var(--color-base-100); color: var(--number-practice-ink); text-align: left; transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease; }
.number-practice__level-button:hover { border-color: var(--number-practice-support); background: color-mix(in oklab, var(--number-practice-support) 6%, var(--color-base-100)); transform: translateX(.1rem); }
.number-practice__level-mark { display: inline-flex; min-width: 3.4rem; height: 3.4rem; flex: 0 0 auto; align-items: center; justify-content: center; border-radius: var(--radius-field); background: color-mix(in oklab, var(--number-practice-accent) 15%, transparent); color: var(--number-practice-accent); font-size: .95rem; font-weight: 900; }
.number-practice__level-button.secondary .number-practice__level-mark { background: color-mix(in oklab, var(--color-secondary) 15%, transparent); color: var(--color-secondary); }
.number-practice__level-button.accent .number-practice__level-mark { background: color-mix(in oklab, var(--color-accent) 15%, transparent); color: var(--color-accent); }
.number-practice__level-arrow { font-size: 1.25rem; color: color-mix(in oklab, var(--number-practice-ink) 45%, transparent); }
.number-practice__game-topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--number-practice-line); padding-bottom: 1rem; }
.number-practice__untimed { border: 1px solid color-mix(in oklab, var(--number-practice-support) 35%, var(--number-practice-line)); border-radius: 999px; padding: .42rem .75rem; background: color-mix(in oklab, var(--number-practice-support) 10%, var(--color-base-100)); color: color-mix(in oklab, var(--number-practice-support) 34%, var(--number-practice-ink)); font-size: .8rem; font-weight: 800; white-space: nowrap; }
.number-practice__progress { height: .45rem; margin-top: 1rem; overflow: hidden; border-radius: 999px; background: var(--color-base-200); }
.number-practice__progress span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--number-practice-support), var(--number-practice-accent)); transition: width 180ms ease; }
.number-practice__stage { min-height: clamp(30rem, 62vh, 44rem); margin-top: 1.5rem; border: 1px solid var(--number-practice-line); border-radius: var(--radius-box); padding: clamp(1.25rem, 5vw, 4rem); background: linear-gradient(180deg, color-mix(in oklab, var(--number-practice-accent) 6%, var(--color-base-100)), var(--color-base-100) 13rem); color: var(--number-practice-ink); box-shadow: 0 1rem 2.5rem color-mix(in oklab, var(--color-neutral) 10%, transparent); }
.number-practice__stage:focus { outline: 3px solid var(--number-practice-accent); outline-offset: 3px; }
.number-practice__prompt { max-width: 60rem; margin: 0 auto; text-align: center; }
.number-practice__challenge-title { max-width: 50rem; margin: .65rem auto 0; }
.number-practice__instruction { max-width: 42rem; margin: .85rem auto 0; color: color-mix(in oklab, var(--number-practice-ink) 65%, transparent); }
.number-practice__voice-card { display: flex; max-width: 52rem; margin: 2.25rem auto 0; align-items: center; gap: .9rem; border: 1px solid color-mix(in oklab, var(--number-practice-support) 25%, var(--number-practice-line)); border-radius: var(--radius-box); padding: 1rem; background: color-mix(in oklab, var(--number-practice-support) 7%, var(--color-base-100)); }
.number-practice__voice-card strong, .number-practice__voice-card span { display: block; }
.number-practice__voice-card span { margin-top: .25rem; color: color-mix(in oklab, var(--number-practice-ink) 58%, transparent); font-size: .88rem; }
.number-practice__voice-mark { display: inline-flex !important; min-width: 3rem; height: 3rem; align-items: center; justify-content: center; margin: 0 !important; border-radius: var(--radius-field); background: var(--number-practice-support); color: var(--color-secondary-content) !important; font-size: 1.3rem !important; }
.number-practice__echo-form { max-width: 42rem; margin: 2rem auto 0; text-align: center; }
.number-practice__echo-input-row { display: flex; gap: .75rem; margin-top: .7rem; }
.number-practice__echo-input { min-width: 0; flex: 1; border: 2px solid color-mix(in oklab, var(--number-practice-accent) 35%, var(--number-practice-line)); border-radius: var(--radius-field); padding: .8rem 1rem; background: var(--color-base-100); color: var(--number-practice-ink); font-size: clamp(1.35rem, 4vw, 2rem); font-variant-numeric: tabular-nums; text-align: center; }
.number-practice__echo-input:focus { outline: 3px solid var(--number-practice-accent); outline-offset: 2px; }
.number-practice__number-pair { display: flex; max-width: 46rem; margin: 2.5rem auto 0; align-items: center; justify-content: center; gap: clamp(.5rem, 4vw, 1.5rem); }
.number-practice__number-pair > span { display: inline-flex; min-width: min(38vw, 12rem); min-height: 7rem; align-items: center; justify-content: center; border: 1px solid color-mix(in oklab, var(--number-practice-accent) 24%, var(--number-practice-line)); border-radius: var(--radius-box); background: color-mix(in oklab, var(--number-practice-accent) 8%, var(--color-base-100)); font-size: clamp(2rem, 8vw, 4.2rem); font-weight: 950; font-variant-numeric: tabular-nums; }
.number-practice__number-pair b { color: var(--number-practice-support); font-size: clamp(1.8rem, 5vw, 3rem); }
.number-practice__number-label { margin: .65rem auto 0; color: color-mix(in oklab, var(--number-practice-ink) 55%, transparent); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.number-practice__resolved { display: inline-flex; min-width: 4.5rem; min-height: 3.7rem; align-items: center; justify-content: center; border-radius: var(--radius-field); background: color-mix(in oklab, var(--color-success) 17%, var(--color-base-100)); color: var(--color-success); font-size: 2rem; font-weight: 950; font-variant-numeric: tabular-nums; }
.number-practice__choice-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; max-width: 54rem; margin: 2rem auto 0; }
.number-practice__choice { display: flex; min-height: 6.7rem; flex-direction: column; align-items: center; justify-content: center; gap: .5rem; border: 1px solid var(--number-practice-line); border-radius: var(--radius-field); background: var(--color-base-100); color: var(--number-practice-ink); font-size: 1rem; font-weight: 800; transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease; }
.number-practice__choice:hover:not(:disabled), .number-practice__order-tile:hover:not(:disabled) { border-color: var(--number-practice-accent); background: color-mix(in oklab, var(--number-practice-accent) 7%, var(--color-base-100)); transform: translateY(-.1rem); }
.number-practice__choice-mark { color: var(--number-practice-accent); font-size: clamp(1.45rem, 3vw, 2rem); font-weight: 950; font-variant-numeric: tabular-nums; }
.number-practice__choice[data-state="incorrect"] { border-color: color-mix(in oklab, var(--color-error) 55%, var(--number-practice-line)); background: color-mix(in oklab, var(--color-error) 8%, var(--color-base-100)); }
.number-practice__choice[data-state="incorrect"] .number-practice__choice-mark { color: var(--color-error); }
.number-practice__choice:disabled, .number-practice__order-tile:disabled { cursor: default; opacity: .72; }
.number-practice__answer-panel { max-width: 54rem; margin: 2rem auto 0; border: 1px solid color-mix(in oklab, var(--color-success) 32%, var(--number-practice-line)); border-radius: var(--radius-box); padding: 1.25rem; background: color-mix(in oklab, var(--color-success) 7%, var(--color-base-100)); text-align: center; }
.number-practice__answer-number { margin: .65rem auto; color: var(--color-success); font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 950; font-variant-numeric: tabular-nums; }
.number-practice__answer-copy { max-width: 42rem; margin: .75rem auto 1.1rem; line-height: 1.5; }
.number-practice__order-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; max-width: 46rem; margin: 2.25rem auto 0; }
.number-practice__order-tile { min-height: 8rem; border: 1px solid var(--number-practice-line); border-radius: var(--radius-field); background: var(--color-base-100); color: var(--number-practice-ink); transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease; }
.number-practice__order-tile[aria-pressed="true"] { border-color: var(--number-practice-accent); background: color-mix(in oklab, var(--number-practice-accent) 9%, var(--color-base-100)); }
.number-practice__order-tile strong, .number-practice__order-tile span { display: block; }
.number-practice__order-tile strong { color: var(--number-practice-accent); font-size: 1.7rem; }
.number-practice__order-tile span { margin-top: .35rem; font-size: .9rem; font-weight: 800; }
.number-practice__order-selection { display: flex; min-height: 3rem; max-width: 46rem; margin: 1.25rem auto 0; align-items: center; justify-content: center; gap: .5rem; color: color-mix(in oklab, var(--number-practice-ink) 58%, transparent); text-align: center; }
.number-practice__order-selection b { display: inline-flex; min-width: 2rem; min-height: 2rem; align-items: center; justify-content: center; border-radius: 999px; background: color-mix(in oklab, var(--number-practice-accent) 15%, transparent); color: var(--number-practice-accent); font-weight: 900; }
.number-practice__action-row { display: flex; justify-content: center; gap: .75rem; margin-top: 1.35rem; }
.number-practice__pause-notice { margin-top: 1.5rem; border: 1px dashed color-mix(in oklab, var(--number-practice-support) 40%, var(--number-practice-line)); border-radius: var(--radius-field); padding: 1rem; background: color-mix(in oklab, var(--number-practice-support) 7%, var(--color-base-100)); text-align: center; }
.number-practice__feedback { min-height: 2rem; margin: 1rem auto 0; max-width: 54rem; color: color-mix(in oklab, var(--number-practice-ink) 72%, transparent); text-align: center; }
.number-practice__feedback[data-state="correct"] { color: var(--color-success); font-weight: 750; }
.number-practice__feedback[data-state="incorrect"] { color: var(--color-error); font-weight: 700; }
.number-practice__results-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 1rem; max-width: 54rem; margin-inline: auto; }
.number-practice__result-card { min-height: 9rem; border: 1px solid var(--number-practice-line); border-radius: var(--radius-box); padding: 1.25rem; background: var(--color-base-100); text-align: center; }
.number-practice__result-card strong { display: block; margin-top: .55rem; color: var(--number-practice-accent); font-size: 2rem; font-weight: 900; }
.number-practice__game.is-paused .number-practice__stage { opacity: .6; }
.number-practice__level-button:focus-visible, .number-practice__wander-card:focus-visible, .number-practice__choice:focus-visible, .number-practice__order-tile:focus-visible { outline: 3px solid var(--number-practice-accent); outline-offset: 3px; }
@media (max-width: 720px) { .number-practice__level-grid { grid-template-columns: 1fr; } .number-practice__stage { min-height: 30rem; padding: 1.25rem; } .number-practice__game-topbar { align-items: flex-start; } .number-practice__game-topbar > div:last-child { flex-wrap: wrap; justify-content: flex-end; } .number-practice__choice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; } .number-practice__choice { min-height: 5.5rem; } .number-practice__echo-input-row { flex-direction: column; } .number-practice__order-grid { gap: .55rem; } .number-practice__order-tile { min-height: 6rem; } }
@media (prefers-reduced-motion: reduce) { .number-practice__hero-card, .number-practice__wander-card, .number-practice__level-button, .number-practice__choice, .number-practice__order-tile, .number-practice__progress span { transition: none; transform: none; } }