/* 小小爆破手 — 蛋仔派对风格（软萌圆滚 · 糖果色 · 果冻按钮） */
@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&family=Nunito:wght@600;700;800;900&display=swap');

:root {
    --kb-ink: #6b5b95;
    --kb-ink-soft: #9b8bb8;
    --kb-white: #ffffff;
    --kb-cream: #fff8f0;
    --kb-egg: #fff4e6;
    --kb-yellow: #ffe066;
    --kb-yellow-dark: #f5c842;
    --kb-orange: #ffb347;
    --kb-pink: #ff8fab;
    --kb-pink-dark: #ff6b9d;
    --kb-blue: #7ec8e3;
    --kb-blue-dark: #5baecc;
    --kb-purple: #c9b6ff;
    --kb-green: #a8e6cf;
    --kb-green-dark: #7dd3a8;
    --kb-red: #ff8a8a;
    --kb-sky: #a8d8ea;
    --kb-sky-deep: #7ec8e3;
    --kb-lime: #e8ffd6;
    --kb-lavender: #ede7ff;
    --kb-shadow-soft: 0 10px 32px rgba(107, 91, 149, 0.14);
    --kb-shadow-card: 0 16px 48px rgba(126, 200, 227, 0.28);
    --kb-shadow-btn: 0 6px 0 rgba(107, 91, 149, 0.18);
    --kb-shadow-btn-hover: 0 10px 24px rgba(255, 107, 157, 0.28);
    --kb-radius-xl: 36px;
    --kb-radius: 26px;
    --kb-radius-sm: 20px;
    --kb-font-display: 'Fredoka', 'Nunito', 'PingFang SC', sans-serif;
    --kb-font: 'Nunito', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.kb-body {
    margin: 0;
    min-height: 100vh;
    color: var(--kb-ink);
    font-family: var(--kb-font);
    font-weight: 700;
    background:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255, 255, 255, 0.65) 0%, transparent 55%),
        radial-gradient(circle at 12% 85%, rgba(255, 143, 171, 0.35) 0%, transparent 32%),
        radial-gradient(circle at 88% 78%, rgba(201, 182, 255, 0.35) 0%, transparent 30%),
        linear-gradient(180deg, #a8d8ea 0%, #d4efff 42%, #ffe8f0 100%);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ===== 蛋仔天空背景 ===== */
.kb-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.kb-bg::before {
    content: '☁️';
    position: absolute;
    font-size: 4rem;
    top: 8%;
    left: 6%;
    opacity: 0.85;
    animation: kb-cloud-bob 7s ease-in-out infinite;
    filter: drop-shadow(0 6px 12px rgba(126, 200, 227, 0.35));
}

.kb-bg::after {
    content: '☁️';
    position: absolute;
    font-size: 3rem;
    top: 14%;
    right: 10%;
    opacity: 0.7;
    animation: kb-cloud-bob 9s ease-in-out infinite reverse;
    filter: drop-shadow(0 4px 10px rgba(126, 200, 227, 0.3));
}

.kb-deco {
    position: fixed;
    z-index: 0;
    pointer-events: none;
    font-size: 2rem;
    animation: kb-deco-bounce 3.5s ease-in-out infinite;
    filter: drop-shadow(0 4px 8px rgba(255, 143, 171, 0.25));
}

.kb-deco--1 { top: 18%; left: 8%; animation-delay: 0s; }
.kb-deco--2 { top: 62%; right: 7%; font-size: 2.2rem; animation-delay: 0.8s; }
.kb-deco--3 { bottom: 14%; left: 12%; font-size: 1.9rem; animation-delay: 1.6s; }
.kb-deco--4 { top: 42%; right: 14%; font-size: 1.7rem; animation-delay: 0.4s; }

@keyframes kb-cloud-bob {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(24px, -10px); }
}

@keyframes kb-deco-bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-12px) scale(1.08); }
}

@keyframes kb-pop {
    0% { transform: scale(0.82); opacity: 0; }
    65% { transform: scale(1.04); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes kb-wiggle {
    0%, 100% { transform: rotate(-1deg); }
    50% { transform: rotate(1deg); }
}

@keyframes kb-egg-idle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.kb-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.kb-header {
    position: sticky;
    top: 0;
    z-index: 40;
    padding: 0.85rem 1rem;
}

.kb-header__inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0.55rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(14px);
    border: 3px solid rgba(255, 255, 255, 0.95);
    border-radius: 999px;
    box-shadow: var(--kb-shadow-soft);
}

.kb-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    color: var(--kb-ink);
    font-family: var(--kb-font-display);
    font-weight: 700;
    font-size: clamp(1.05rem, 3vw, 1.35rem);
}

.kb-brand__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.65rem;
    height: 2.85rem;
    border-radius: 50% 50% 46% 46% / 58% 58% 42% 42%;
    background: linear-gradient(180deg, #fff8e7 0%, #ffe8b8 55%, #ffd699 100%);
    box-shadow:
        inset 0 -4px 8px rgba(255, 180, 120, 0.25),
        0 4px 12px rgba(255, 143, 171, 0.3);
    font-size: 1.35rem;
    animation: kb-egg-idle 2.8s ease-in-out infinite;
}

.kb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.35rem;
    font-size: 0.85rem;
}

.kb-nav__user {
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: var(--kb-lavender);
    color: var(--kb-ink);
    font-weight: 800;
}

.kb-nav__link {
    color: var(--kb-ink-soft);
    text-decoration: none;
    padding: 0.42rem 0.8rem;
    border-radius: 999px;
    font-weight: 800;
    transition: background 0.15s, color 0.15s, transform 0.15s;
}

.kb-nav__link:hover {
    background: rgba(255, 255, 255, 0.75);
    color: var(--kb-ink);
    transform: translateY(-1px);
}

.kb-nav__link.is-active {
    background: linear-gradient(180deg, var(--kb-pink) 0%, var(--kb-pink-dark) 100%);
    color: var(--kb-white);
    box-shadow: 0 4px 14px rgba(255, 107, 157, 0.35);
}

.kb-nav__btn {
    border: none;
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    color: var(--kb-ink-soft);
    padding: 0.42rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.6);
    transition: background 0.15s, transform 0.12s;
}

.kb-nav__btn:hover {
    background: rgba(255, 138, 138, 0.25);
    color: var(--kb-ink);
}

.kb-nav__btn:active {
    transform: scale(0.96);
}

/* ===== Main ===== */
.kb-main {
    flex: 1;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 1rem 1rem 3rem;
}

.kb-main--wide { max-width: 940px; }

.kb-main--center {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 90px);
}

/* ===== Typography ===== */
.kb-page-head {
    text-align: center;
    margin-bottom: 1.5rem;
}

.kb-page-title {
    margin: 0 0 0.5rem;
    font-family: var(--kb-font-display);
    font-size: clamp(1.85rem, 5.5vw, 2.5rem);
    font-weight: 700;
    color: var(--kb-ink);
    line-height: 1.15;
}

.kb-page-title__emoji {
    display: inline-block;
    font-size: 1.15em;
    animation: kb-deco-bounce 2.5s ease-in-out infinite;
}

.kb-page-desc {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--kb-ink-soft);
    line-height: 1.55;
}

.kb-tagline {
    display: inline-block;
    margin-top: 0.7rem;
    padding: 0.4rem 1.1rem;
    background: linear-gradient(90deg, var(--kb-lime), #fff);
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 800;
    color: var(--kb-ink);
    box-shadow: var(--kb-shadow-soft);
}

/* ===== Cards ===== */
.kb-card {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    border: 3px solid rgba(255, 255, 255, 0.95);
    border-radius: var(--kb-radius-xl);
    box-shadow: var(--kb-shadow-card);
    padding: 1.75rem;
    position: relative;
    animation: kb-pop 0.45s ease-out;
}

.kb-card--hero {
    max-width: 460px;
    width: 100%;
    text-align: center;
    padding: 2.25rem 1.75rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 244, 230, 0.92) 100%);
}

.kb-mascot {
    position: relative;
    width: 7rem;
    height: 7.5rem;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    border-radius: 50% 50% 46% 46% / 58% 58% 42% 42%;
    background: linear-gradient(180deg, #fffef8 0%, #ffe8b8 45%, #ffd699 100%);
    box-shadow:
        inset 0 -10px 20px rgba(255, 190, 130, 0.28),
        inset 0 6px 12px rgba(255, 255, 255, 0.8),
        0 12px 28px rgba(255, 143, 171, 0.28);
    animation: kb-egg-idle 2.2s ease-in-out infinite;
}

.kb-mascot::after {
    content: '';
    position: absolute;
    width: 7rem;
    height: 7.5rem;
    border-radius: inherit;
    box-shadow: inset 0 18px 0 rgba(255, 255, 255, 0.35);
    pointer-events: none;
}

.kb-card--narrow {
    max-width: 560px;
    margin: 0 auto;
}

.kb-card--game {
    padding: 1.1rem;
    background: linear-gradient(180deg, rgba(201, 182, 255, 0.45) 0%, rgba(168, 216, 234, 0.35) 100%);
    border-color: rgba(255, 255, 255, 0.85);
}

.kb-card--game::after {
    content: '🥚 开轰！';
    position: absolute;
    top: -12px;
    right: 18px;
    padding: 0.3rem 0.9rem;
    background: linear-gradient(180deg, var(--kb-yellow) 0%, var(--kb-yellow-dark) 100%);
    border-radius: 999px;
    font-family: var(--kb-font-display);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--kb-ink);
    box-shadow: 0 4px 12px rgba(245, 200, 66, 0.45);
}

/* ===== Form ===== */
.kb-field { margin-bottom: 1.25rem; }

.kb-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--kb-font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--kb-ink);
}

.kb-input,
.kb-select {
    width: 100%;
    padding: 0.9rem 1.1rem;
    border-radius: var(--kb-radius-sm);
    border: 3px solid rgba(201, 182, 255, 0.45);
    background: rgba(255, 255, 255, 0.92);
    color: var(--kb-ink);
    font: inherit;
    font-weight: 700;
    font-size: 1.02rem;
    box-shadow: inset 0 2px 6px rgba(107, 91, 149, 0.06);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.kb-input:focus,
.kb-select:focus {
    outline: none;
    border-color: var(--kb-pink);
    box-shadow:
        inset 0 2px 6px rgba(107, 91, 149, 0.06),
        0 0 0 4px rgba(255, 143, 171, 0.25);
}

.kb-input::placeholder {
    color: #bbb;
    font-weight: 600;
}

/* ===== Jelly Buttons ===== */
.kb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.95rem 1.5rem;
    border: none;
    border-radius: 999px;
    font-family: var(--kb-font-display);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.12s, box-shadow 0.12s, filter 0.12s;
    position: relative;
}

.kb-btn:active {
    transform: translateY(4px) scale(0.98) !important;
    box-shadow: none !important;
}

.kb-btn--primary {
    width: 100%;
    color: var(--kb-ink);
    background: linear-gradient(180deg, #fff099 0%, var(--kb-yellow) 45%, var(--kb-yellow-dark) 100%);
    box-shadow:
        var(--kb-shadow-btn),
        inset 0 2px 0 rgba(255, 255, 255, 0.55);
}

.kb-btn--primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--kb-shadow-btn-hover), inset 0 2px 0 rgba(255, 255, 255, 0.55);
    filter: brightness(1.03);
}

.kb-btn--primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.kb-btn--play {
    font-size: 1.28rem;
    padding: 1.05rem 1.75rem;
}

.kb-btn--ghost {
    color: var(--kb-ink);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--kb-shadow-soft);
}

.kb-btn--ghost:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(107, 91, 149, 0.16);
}

.kb-btn--blue {
    color: var(--kb-white);
    background: linear-gradient(180deg, #9ddcf0 0%, var(--kb-blue) 50%, var(--kb-blue-dark) 100%);
    box-shadow: 0 6px 0 rgba(91, 174, 204, 0.45), inset 0 2px 0 rgba(255, 255, 255, 0.4);
}

.kb-btn--blue:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(91, 174, 204, 0.35), inset 0 2px 0 rgba(255, 255, 255, 0.4);
}

.kb-btn--pink {
    color: var(--kb-white);
    background: linear-gradient(180deg, #ffb8cc 0%, var(--kb-pink) 50%, var(--kb-pink-dark) 100%);
    box-shadow: 0 6px 0 rgba(255, 107, 157, 0.4), inset 0 2px 0 rgba(255, 255, 255, 0.4);
}

.kb-btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    justify-content: center;
}

/* ===== Alerts ===== */
.kb-alert {
    padding: 1rem 1.15rem;
    border-radius: var(--kb-radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 1.15rem;
}

.kb-alert--error {
    background: rgba(255, 138, 138, 0.2);
    color: #c44;
}

.kb-alert--warn {
    background: rgba(255, 224, 102, 0.45);
    color: var(--kb-ink);
}

.kb-alert--success {
    background: rgba(168, 230, 207, 0.55);
    color: var(--kb-ink);
}

.kb-hint {
    margin-top: 0.55rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--kb-ink-soft);
}

.kb-hint--warn { color: var(--kb-orange); }
.kb-hint--error { color: var(--kb-red); }

.kb-footnote {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--kb-ink-soft);
}

.kb-footnote a {
    color: var(--kb-pink-dark);
    text-decoration: none;
    border-bottom: 2px dotted var(--kb-pink);
}

/* ===== Mode cards ===== */
.kb-mode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.kb-mode-card {
    padding: 1.2rem 0.85rem;
    border-radius: var(--kb-radius);
    border: 3px solid rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.75);
    color: var(--kb-ink-soft);
    cursor: pointer;
    text-align: center;
    font: inherit;
    box-shadow: var(--kb-shadow-soft);
    transition: transform 0.15s, box-shadow 0.15s;
}

.kb-mode-card:hover:not(:disabled) {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 36px rgba(126, 200, 227, 0.28);
}

.kb-mode-card.is-active {
    color: var(--kb-white);
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 14px 32px rgba(107, 91, 149, 0.2);
}

.kb-mode-card.is-active[data-mode="typing"] {
    background: linear-gradient(180deg, #9ddcf0 0%, var(--kb-blue) 100%);
}

.kb-mode-card.is-active[data-mode="oral"] {
    background: linear-gradient(180deg, #ffb8cc 0%, var(--kb-pink-dark) 100%);
}

.kb-mode-card:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(0.4);
}

.kb-mode-card__icon {
    display: block;
    font-size: 2.75rem;
    margin-bottom: 0.35rem;
    line-height: 1;
}

.kb-mode-card__title {
    display: block;
    font-family: var(--kb-font-display);
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.kb-mode-card__desc {
    display: block;
    font-size: 0.78rem;
    line-height: 1.35;
    font-weight: 700;
    opacity: 0.92;
}

/* ===== Settings ===== */
.kb-setting {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem 0;
    border-bottom: 2px dashed rgba(107, 91, 149, 0.12);
}

.kb-setting:last-of-type {
    border-bottom: none;
    margin-bottom: 1rem;
}

.kb-setting__icon { font-size: 1.65rem; vertical-align: middle; }

.kb-setting__title {
    display: block;
    font-family: var(--kb-font-display);
    font-weight: 700;
    font-size: 1.05rem;
}

.kb-setting__desc {
    display: block;
    font-size: 0.8rem;
    color: var(--kb-ink-soft);
    line-height: 1.4;
    font-weight: 700;
    margin-top: 0.15rem;
}

.kb-tts-options {
    margin: 0 0 1.15rem;
    padding: 1.15rem;
    border-radius: var(--kb-radius-sm);
    background: var(--kb-lime);
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--kb-shadow-soft);
}

.kb-tts-options.is-disabled {
    opacity: 0.4;
    pointer-events: none;
}

.kb-range-value {
    float: right;
    font-family: var(--kb-font-display);
    font-weight: 700;
    color: var(--kb-pink-dark);
}

.kb-range {
    width: 100%;
    height: 0.55rem;
    margin-top: 0.5rem;
    accent-color: var(--kb-pink-dark);
    cursor: pointer;
}

.kb-toggle {
    position: relative;
    width: 3.5rem;
    height: 2rem;
    flex-shrink: 0;
}

.kb-toggle input { opacity: 0; width: 0; height: 0; }

.kb-toggle__track {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: rgba(155, 139, 184, 0.25);
    cursor: pointer;
    transition: background 0.2s;
    box-shadow: inset 0 2px 4px rgba(107, 91, 149, 0.12);
}

.kb-toggle__track::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 50%;
    background: var(--kb-white);
    box-shadow: 0 2px 6px rgba(107, 91, 149, 0.2);
    transition: transform 0.22s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.kb-toggle input:checked + .kb-toggle__track {
    background: linear-gradient(180deg, var(--kb-green) 0%, var(--kb-green-dark) 100%);
}

.kb-toggle input:checked + .kb-toggle__track::after {
    transform: translateX(1.4rem);
}

/* ===== Rank ===== */
.kb-table-wrap {
    overflow-x: auto;
    border-radius: var(--kb-radius);
    box-shadow: var(--kb-shadow-card);
    border: 3px solid rgba(255, 255, 255, 0.9);
}

.kb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.kb-table th {
    text-align: left;
    padding: 1rem;
    color: var(--kb-white);
    font-family: var(--kb-font-display);
    font-weight: 700;
    font-size: 0.95rem;
    background: linear-gradient(180deg, var(--kb-pink) 0%, var(--kb-pink-dark) 100%);
}

.kb-table td {
    padding: 1rem;
    border-bottom: 2px solid rgba(107, 91, 149, 0.06);
    font-weight: 700;
    background: rgba(255, 255, 255, 0.92);
}

.kb-table tr:last-child td { border-bottom: none; }

.kb-table tbody tr:nth-child(even) td {
    background: rgba(255, 248, 240, 0.85);
}

.kb-table tr.kb-rank-top td {
    background: linear-gradient(90deg, rgba(255, 224, 102, 0.45), rgba(255, 255, 255, 0.92));
    font-size: 1.02rem;
}

.kb-table tr.kb-rank-top:first-child td {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.35), rgba(255, 224, 102, 0.4), rgba(255, 255, 255, 0.92));
}

.kb-table .kb-rank-medal { font-size: 1.65rem; }

.kb-table .kb-score {
    font-family: var(--kb-font-display);
    font-weight: 700;
    font-size: 1.28rem;
    color: var(--kb-pink-dark);
}

.kb-empty,
.kb-loading {
    text-align: center;
    padding: 3rem 1rem;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--kb-ink);
}

.kb-loading { animation: kb-egg-idle 1.2s ease-in-out infinite; }

/* ===== Game HUD ===== */
.kb-hud {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(95px, 1fr));
    gap: 0.55rem;
    margin-bottom: 0.85rem;
}

.kb-hud__item {
    padding: 0.55rem 0.65rem;
    border-radius: 999px;
    border: none;
    background: rgba(255, 255, 255, 0.88);
    font-family: var(--kb-font-display);
    font-size: 0.82rem;
    font-weight: 700;
    box-shadow: var(--kb-shadow-soft);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--kb-ink);
}

.kb-hud__item--accent {
    background: linear-gradient(180deg, #fff099 0%, var(--kb-yellow) 100%);
    font-size: 0.88rem;
}

.kb-hud__item--pulse {
    animation: kb-pop 0.4s ease-out;
    background: linear-gradient(180deg, var(--kb-pink) 0%, var(--kb-pink-dark) 100%);
    color: var(--kb-white);
}

.kb-oral-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem 0.75rem;
    margin-bottom: 0.7rem;
    padding: 0.85rem 1rem;
    border-radius: var(--kb-radius-sm);
    background: linear-gradient(90deg, var(--kb-pink) 0%, var(--kb-pink-dark) 100%);
    color: var(--kb-white);
    box-shadow: var(--kb-shadow-soft);
    font-size: 0.92rem;
    font-weight: 700;
}

.kb-oral-bar #recognized-text,
.kb-oral-bar__heard {
    flex: 1;
    min-width: 0;
    color: var(--kb-yellow) !important;
    font-family: var(--kb-font-display);
    font-size: 1.05rem;
    font-weight: 700;
}

.kb-oral-bar__retry,
.kb-oral-bar__hint {
    padding: 0.4rem 0.75rem;
    font-size: 0.78rem;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.92) !important;
    color: var(--kb-ink) !important;
    box-shadow: none !important;
}

.kb-hint-bar {
    margin-bottom: 0.7rem;
    padding: 0.85rem 1rem;
    border-radius: var(--kb-radius-sm);
    background: rgba(255, 224, 102, 0.55);
    color: var(--kb-ink);
    font-size: 0.92rem;
    font-weight: 700;
    box-shadow: var(--kb-shadow-soft);
}

/* ===== Game frame ===== */
.kb-game-frame {
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
    width: 100%;
    max-width: 800px;
    min-height: 280px;
    aspect-ratio: 5 / 3;
    border-radius: 28px;
    border: 4px solid rgba(255, 255, 255, 0.92);
    box-shadow: var(--kb-shadow-card);
    background: var(--kb-sky);
}

.kb-game-frame canvas { display: block; }

.kb-game-wrap { position: relative; }

.kb-game-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.85rem;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--kb-shadow-soft);
}

.kb-game-toolbar__hint {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--kb-ink-soft);
}

.kb-game-fullscreen-btn {
    width: auto;
    min-width: 6rem;
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
}

.kb-game-wrap--combo .kb-game-frame {
    border-color: var(--kb-pink);
    box-shadow:
        var(--kb-shadow-card),
        0 0 0 5px rgba(255, 224, 102, 0.55),
        0 0 36px rgba(255, 143, 171, 0.45);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.kb-game-wrap--over .kb-game-frame {
    filter: saturate(0.85) brightness(0.97);
}

/* Fullscreen */
.kb-game-wrap.is-fullscreen,
.kb-game-wrap:fullscreen {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    padding: 1rem 1.25rem;
    box-sizing: border-box;
    background: linear-gradient(180deg, var(--kb-sky), #ffe8f0);
    overflow: auto;
}

.kb-game-wrap.is-fullscreen .kb-game-frame,
.kb-game-wrap:fullscreen .kb-game-frame {
    flex: 1 1 auto;
    width: 100%;
    max-width: none;
    min-height: 320px;
    height: auto;
    margin: 0;
}

body.kb-body--game-fullscreen .kb-header { display: none; }

body.kb-body--game-fullscreen .kb-main--wide {
    max-width: none;
    padding: 0;
}

body.kb-body--game-fullscreen .kb-card--game {
    min-height: 100vh;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

body.kb-body--game-fullscreen .kb-card--game::after { display: none; }

body.kb-body--game-fullscreen .kb-shell { min-height: 100vh; }

body.kb-body--game-fullscreen .kb-game-wrap.is-fullscreen { min-height: 100vh; }

/* Overlay */
.kb-overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    border-radius: 28px;
    background: rgba(201, 182, 255, 0.55);
    backdrop-filter: blur(8px);
}

.kb-overlay.is-open { display: flex; }

.hidden { display: none !important; }

.kb-overlay__card {
    width: min(100%, 400px);
    padding: 2.25rem 1.75rem;
    text-align: center;
    border-radius: var(--kb-radius-xl);
    border: 3px solid rgba(255, 255, 255, 0.95);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 244, 230, 0.95) 100%);
    box-shadow: var(--kb-shadow-card);
    animation: kb-pop 0.45s ease-out;
}

.kb-overlay__celebrate {
    font-size: 3.25rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    animation: kb-deco-bounce 1.8s ease-in-out infinite;
}

.kb-overlay__title {
    margin: 0 0 0.5rem;
    font-family: var(--kb-font-display);
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--kb-ink);
}

.kb-overlay__score {
    margin: 0 0 0.65rem;
    font-family: var(--kb-font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--kb-pink-dark);
}

.kb-overlay__feedback {
    margin: 0 0 1.5rem;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--kb-ink-soft);
}

/* Eye comfort */
body.kb-eye-comfort .kb-game-frame {
    box-shadow: var(--kb-shadow-card);
}

@media (max-width: 640px) {
    .kb-mode-grid { grid-template-columns: 1fr; }

    .kb-nav__user { display: none; }

    .kb-header__inner {
        border-radius: var(--kb-radius);
        flex-wrap: wrap;
        justify-content: center;
    }

    .kb-game-toolbar {
        flex-direction: column;
        align-items: stretch;
        border-radius: var(--kb-radius-sm);
    }

    .kb-hud {
        grid-template-columns: repeat(2, 1fr);
    }
}