/* Fucina — identity on top of the base components of app.css.
 * A bright workshop: molten coral and sunshine on cream by day, on midnight blue by night. Round, chunky and physical:
 * buttons and cards have a thick lower edge and sink when pressed. Favilla, the mascot, lives in assets/drills.js. */

@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-display: swap;
    font-weight: 100 800;
    src: url('fonts/jetbrains-mono-latin-wght-normal.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-display: swap;
    font-weight: 100 800;
    src: url('fonts/jetbrains-mono-latin-ext-wght-normal.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
    font-family: 'Stack Sans Notch';
    font-style: normal;
    font-display: swap;
    font-weight: 200 700;
    src: url('fonts/stack-sans-notch.ttf') format('truetype');
}

@font-face {
    font-family: 'Fredoka';
    font-style: normal;
    font-display: swap;
    font-weight: 300 700;
    src: url('fonts/fredoka-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Fredoka';
    font-style: normal;
    font-display: swap;
    font-weight: 300 700;
    src: url('fonts/fredoka-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-display: swap;
    font-weight: 200 1000;
    src: url('fonts/nunito-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-display: swap;
    font-weight: 200 1000;
    src: url('fonts/nunito-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2C60-2C7F, U+A720-A7FF;
}

:root {
    --primary: #D93A14;
    --primary-edge: #A32808;
    --on-primary: #FFFFFF;
    --primary-container: #FFE3D6;
    --on-primary-container: #6E1C05;
    --brand: #FF5B2E;
    --ember: #FF7A4D;
    --gold: #F5A800;
    --sun: #FFC53D;
    --sun-edge: #D99A0F;
    --mint: #12B886;
    --mint-edge: #0B8A63;
    --sky: #2F8CF0;
    --sky-edge: #1B66BC;
    --pink: #F03E82;
    --pink-edge: #BC2460;
    --violet: #7048E8;
    --violet-edge: #5230BA;
    --steel: #62608A;
    --bg: #FFF6EA;
    --surface: #FFFFFF;
    --surface-1: #FFFFFF;
    --surface-2: #FCEBD6;
    --surface-3: #F4DCBF;
    --card-border: #F2E3CF;
    --card-edge: #E6D2B8;
    --card-shadow: 0 4px 0 var(--card-edge);
    --text: #1B1B4B;
    --muted: #5F5C87;
    --outline: #A9A6C8;
    --outline-variant: #EADCC9;
    --ok: #0B7F5C;
    --ok-container: #D5F6EA;
    --bad: #CF2343;
    --bad-container: #FFE1E6;
    --code-bg: #17173F;
    --code-fg: #EDEBFF;
    --display: 'Fredoka', 'Nunito', system-ui, sans-serif;
    --body: 'Nunito', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    --r-sm: 10px;
    --r-md: 14px;
    --r-lg: 20px;
    --r-xl: 26px;
    --fam: var(--brand);
    --fam-edge: var(--primary-edge);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --primary: #FF7A4D;
        --primary-edge: #C24A22;
        --on-primary: #2A0E05;
        --primary-container: #55240F;
        --on-primary-container: #FFE3D6;
        --brand: #FF7A4D;
        --gold: #FFC53D;
        --steel: #B4B1DC;
        --bg: #12113A;
        --surface: #1E1C52;
        --surface-1: #1E1C52;
        --surface-2: #2A2768;
        --surface-3: #37348A;
        --card-border: #2F2C72;
        --card-edge: #0B0A2A;
        --text: #F4F2FF;
        --muted: #B9B6E0;
        --outline: #6F6BB0;
        --outline-variant: #322F78;
        --ok: #4FE3B4;
        --ok-container: #0F4A3A;
        --bad: #FF8199;
        --bad-container: #55172A;
        --code-bg: #0C0B2C;
    }
}

:root[data-theme="dark"] {
    --primary: #FF7A4D;
    --primary-edge: #C24A22;
    --on-primary: #2A0E05;
    --primary-container: #55240F;
    --on-primary-container: #FFE3D6;
    --brand: #FF7A4D;
    --gold: #FFC53D;
    --steel: #B4B1DC;
    --bg: #12113A;
    --surface: #1E1C52;
    --surface-1: #1E1C52;
    --surface-2: #2A2768;
    --surface-3: #37348A;
    --card-border: #2F2C72;
    --card-edge: #0B0A2A;
    --text: #F4F2FF;
    --muted: #B9B6E0;
    --outline: #6F6BB0;
    --outline-variant: #322F78;
    --ok: #4FE3B4;
    --ok-container: #0F4A3A;
    --bad: #FF8199;
    --bad-container: #55172A;
    --code-bg: #0C0B2C;
}

.fam-html { --fam: #FF5B2E; --fam-edge: #BF3C14; }
.fam-css { --fam: #2F8CF0; --fam-edge: #1B66BC; }
.fam-scss, .fam-sass { --fam: #F03E82; --fam-edge: #BC2460; }
.fam-js { --fam: #E8A400; --fam-edge: #B07C00; }
.fam-php { --fam: #7048E8; --fam-edge: #5230BA; }
.fam-ts { --fam: #1F7FD1; --fam-edge: #125C9E; }

/* ---------- Base components, reshaped ---------- */
html, body, button, input, select, textarea {
    font-family: var(--body);
}

body {
    background: var(--bg);
    font-weight: 600;
}

h1, h2, h3, .section-title, .appbar h1, .auth-top h1, .sheet-title, .sn-brand strong {
    font-family: var(--display);
    font-weight: 600;
    letter-spacing: -.01em;
}

.appbar, .appbar.small {
    background: var(--bg);
}

.appbar h1 {
    font-size: 1.45rem;
}

.card, .group {
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-lg);
    box-shadow: var(--card-shadow);
}

.btn {
    border-radius: var(--r-md);
    font-family: var(--display);
    font-weight: 600;
    letter-spacing: .01em;
    min-height: 46px;
    transition: transform .08s, box-shadow .08s, filter .15s;
}

.btn-filled {
    background: var(--primary);
    color: var(--on-primary);
    border: 0;
    box-shadow: 0 4px 0 var(--primary-edge);
    margin-bottom: 4px;
}

.btn-filled:hover {
    background: var(--primary);
    filter: brightness(1.06);
    box-shadow: 0 4px 0 var(--primary-edge);
}

.btn-filled:active, .btn-tonal:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 transparent;
}

.btn-tonal {
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 0 var(--card-edge);
    margin-bottom: 4px;
}

.btn-tonal:hover {
    background: var(--surface);
    filter: brightness(1.03);
}

.btn-text {
    color: var(--primary);
}

.tile {
    border-radius: var(--r-md);
    background: var(--primary-container);
    color: var(--on-primary-container);
}

.seg {
    border-radius: var(--r-md);
    background: var(--surface-2);
    border: 0;
    padding: 4px;
}

.seg button {
    border-radius: var(--r-sm);
    font-family: var(--display);
    font-weight: 500;
}

.seg button.sel {
    background: var(--surface);
    color: var(--primary);
    box-shadow: 0 2px 0 var(--card-edge);
}

.status {
    border-radius: 999px;
    font-weight: 800;
}

.status.ok {
    background: var(--ok-container);
    color: var(--ok);
}

.section-title {
    margin: 28px 0 12px;
    font-size: 1.2rem;
}

.lead {
    color: var(--muted);
    margin: 4px 0 18px;
}

.muted {
    color: var(--muted);
}

.small {
    font-size: .8rem;
}

.grow {
    flex: 1;
    min-width: 0;
}

.center {
    text-align: center;
}

.pad {
    padding: 16px;
}

.kicker {
    display: block;
    font: 600 .8rem var(--display);
    letter-spacing: .03em;
    color: var(--primary);
}

.avatar {
    background: var(--violet);
    color: #fff;
    border-radius: 50%;
    display: inline-grid;
    place-items: center;
    width: 40px;
    height: 40px;
    font-family: var(--display);
    font-weight: 600;
}

.avatar.sm {
    width: 32px;
    height: 32px;
}

.avatar.lg {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
}

.avatar-btn {
    border: 0;
    padding: 0;
    background: none;
    cursor: pointer;
    margin-left: 6px;
}

.sparks {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 5px 11px 5px 7px;
    border-radius: 999px;
    background: var(--surface);
    border: 2px solid var(--card-border);
    font: 600 .95rem var(--display);
    color: var(--text);
    flex: none;
}

.sparks .ic {
    width: 18px;
    height: 18px;
    fill: var(--gold);
}

.bar {
    height: 14px;
    background: var(--surface-2);
    border-radius: 999px;
    overflow: hidden;
}

.bar i {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: var(--fam);
    box-shadow: inset 0 3px 0 rgb(255 255 255 / .28);
    transition: width .4s cubic-bezier(.3, 1.4, .5, 1);
}

.bar.top {
    margin-bottom: 20px;
}

.stars {
    display: inline-flex;
    gap: 1px;
}

.stars .ic {
    width: 20px;
    height: 20px;
}

.stars .on {
    fill: var(--gold);
}

.stars .off {
    fill: var(--surface-3);
}

.diff {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: .74rem;
    color: var(--muted);
}

.diff i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--surface-3);
}

.diff span {
    margin-left: 3px;
}

.diff.d1 i:nth-child(1), .diff.d2 i:nth-child(-n+2), .diff.d3 i:nth-child(-n+3) {
    background: var(--fam);
}

/* ---------- Favilla ---------- */
.mascot {
    display: inline-block;
    flex: none;
    width: 58px;
    line-height: 0;
    transform-origin: 50% 90%;
    animation: bob 2.6s ease-in-out infinite;
}

.mascot svg {
    width: 100%;
    height: auto;
    display: block;
}

.mascot.xs {
    width: 30px;
    animation: none;
}

.mascot.lg {
    width: 112px;
}

@keyframes bob {
    0%, 100% { transform: translateY(0) scale(1, 1); }
    50% { transform: translateY(-5px) scale(.98, 1.03); }
}

.mascot.still {
    animation: none;
}

.tip .mascot {
    width: 34px;
}

.empty .mascot {
    width: 76px;
    margin-bottom: 6px;
}

/* Favilla speaks at home: one short sentence in a bubble */
.pet-say {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.pet-sm {
    width: 42px;
}

.pet-say p {
    position: relative;
    margin: 0;
    padding: 9px 14px;
    border-radius: var(--r-md);
    background: var(--surface);
    border: 2px solid var(--card-border);
    font-weight: 700;
    line-height: 1.3;
}

.pet-say p::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 50%;
    width: 10px;
    height: 10px;
    margin-top: -6px;
    background: var(--surface);
    border-left: 2px solid var(--card-border);
    border-bottom: 2px solid var(--card-border);
    transform: rotate(45deg);
}

.confetti {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 200;
}

.confetti i {
    position: absolute;
    top: -16px;
    width: 10px;
    height: 16px;
    border-radius: 3px;
    animation: fall 1.4s cubic-bezier(.3, .3, .6, 1) forwards;
}

@keyframes fall {
    to { transform: translate(var(--drift), 106vh) rotate(var(--spin)); }
}

/* ---------- Home ---------- */
.rank {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-xl);
    box-shadow: var(--card-shadow);
    padding: 16px;
    margin-bottom: 16px;
}

.rank-pet {
    width: 66px;
}

.rank-body {
    flex: 1;
    min-width: 0;
}

.rank-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.rank-label {
    display: block;
    font: 500 .8rem var(--display);
    color: var(--primary);
}

.rank strong {
    font: 600 1.25rem var(--display);
    line-height: 1.15;
}

.rank .bar i {
    background: linear-gradient(90deg, var(--brand), var(--sun));
}

.rank-xp {
    margin: 6px 0 0;
    font-size: .8rem;
    color: var(--muted);
}

.streak {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 4px 10px 4px 6px;
    border-radius: 999px;
    background: var(--surface-2);
    color: var(--muted);
    font: 600 1rem var(--display);
}

.streak .ic {
    width: 20px;
    height: 20px;
    fill: var(--outline);
}

.streak.lit {
    background: var(--primary-container);
    color: var(--on-primary-container);
}

.streak.lit .ic {
    fill: var(--brand);
}

.cta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px 20px;
    border-radius: var(--r-xl);
    background: var(--fam);
    color: #fff;
    text-decoration: none;
    box-shadow: 0 6px 0 var(--fam-edge);
    margin-bottom: 8px;
    transition: transform .08s, box-shadow .08s;
}

.cta:active {
    transform: translateY(6px);
    box-shadow: 0 0 0 transparent;
}

.cta .kicker {
    color: #fff;
    opacity: .92;
}

.cta strong {
    font: 600 1.6rem var(--display);
    line-height: 1.1;
}

.cta .bar {
    background: rgb(0 0 0 / .2);
}

.cta .bar i {
    background: #fff;
    box-shadow: none;
}

.cta-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 800;
}

.cta-go {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #fff;
    color: var(--fam-edge);
}

.cta-go .ic {
    fill: currentColor;
    width: 26px;
    height: 26px;
}

.quick {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}

.quick-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 14px 16px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 0 var(--tone-edge);
    color: var(--text);
    text-decoration: none;
    transition: transform .08s, box-shadow .08s;
}

.quick-card:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 transparent;
}

.quick-card.sun { --tone: var(--sun); --tone-edge: var(--sun-edge); }
.quick-card.mint { --tone: var(--mint); --tone-edge: var(--mint-edge); }
.quick-card.sky { --tone: var(--sky); --tone-edge: var(--sky-edge); }

.quick-card.wide {
    margin-bottom: 16px;
}

.quick-ic {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 6px;
    border-radius: var(--r-md);
    background: var(--tone);
}

.quick-ic .ic {
    fill: #1B1B4B;
    width: 26px;
    height: 26px;
}

.quick-card strong {
    font: 600 1.1rem var(--display);
}

.quick-card > span:not(.quick-ic) {
    font-size: .85rem;
    color: var(--muted);
}

.quick-mark {
    position: absolute;
    top: 14px;
    right: 14px;
    fill: var(--ok);
}

.tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
}

.stat {
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-lg);
    padding: 12px 14px;
    display: grid;
    gap: 0;
}

.stat .ic {
    fill: var(--brand);
}

.stat strong {
    font: 600 1.7rem var(--display);
}

.stat span {
    font-size: .8rem;
    color: var(--muted);
}

/* ---------- Path ---------- */
.course-list, .game-list {
    display: grid;
    gap: 14px;
    margin-bottom: 16px;
}

@media (min-width: 720px) {
    .course-list, .game-list {
        grid-template-columns: 1fr 1fr;
    }
}

.course, .game-card {
    display: flex;
    gap: 14px;
    padding: 16px;
    text-decoration: none;
    color: inherit;
}

.course {
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-xl);
    box-shadow: 0 5px 0 var(--fam-edge);
    transition: transform .08s, box-shadow .08s;
}

a.course:active, a.game-card:active {
    transform: translateY(4px);
    box-shadow: 0 1px 0 var(--fam-edge);
}

.course strong, .game-card strong {
    font: 600 1.15rem var(--display);
}

.course p, .game-card p {
    margin: 2px 0 10px;
    font-size: .88rem;
}

.course .meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.course.locked {
    box-shadow: 0 5px 0 var(--card-edge);
    filter: saturate(.25);
    opacity: .75;
}

.lock-note {
    display: flex;
    align-items: center;
    gap: 4px;
}

.lock-note .ic {
    width: 15px;
    height: 15px;
}

.fam {
    flex: none;
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    border-radius: var(--r-md);
    font: 600 .82rem var(--display);
    letter-spacing: .02em;
    color: #fff;
    background: var(--fam);
    box-shadow: 0 3px 0 var(--fam-edge);
}

/* The levels on a winding trail */
.map {
    list-style: none;
    position: relative;
    max-width: 460px;
    margin: 0 auto 14px;
    padding: 0;
}

.map-line, .map-line svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.map-line path {
    fill: none;
    vector-effect: non-scaling-stroke;
    stroke-linecap: round;
}

.map-line .way {
    stroke: var(--surface-3);
    stroke-width: 10;
    stroke-dasharray: 1 20;
}

.map-line .walked {
    stroke: var(--fam);
    stroke-width: 10;
}

.node-spot {
    position: absolute;
    width: 132px;
    margin-left: -66px;
    margin-top: -38px;
}

.node {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    text-align: center;
    text-decoration: none;
    color: inherit;
}

.node-dot {
    display: grid;
    place-items: center;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--fam);
    color: #fff;
    font: 600 1.6rem var(--display);
    box-shadow: 0 6px 0 var(--fam-edge);
    transition: transform .08s, box-shadow .08s;
}

.node-dot .ic {
    fill: currentColor;
    width: 32px;
    height: 32px;
}

a.node:active .node-dot {
    transform: translateY(6px);
    box-shadow: 0 0 0 transparent;
}

.node.cleared .node-dot {
    background: var(--sun);
    color: #1B1B4B;
    box-shadow: 0 6px 0 var(--sun-edge);
}

.node.locked .node-dot {
    background: var(--surface-3);
    color: var(--muted);
    box-shadow: 0 6px 0 var(--card-edge);
}

.node.current .node-dot {
    outline: 5px solid color-mix(in srgb, var(--fam) 28%, transparent);
    outline-offset: 3px;
    animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
    50% { outline-offset: 7px; }
}

.node-go {
    position: absolute;
    top: -32px;
    padding: 2px 11px;
    border-radius: 999px;
    background: var(--text);
    color: var(--bg);
    font: 600 .82rem var(--display);
    z-index: 1;
    animation: bob 1.6s ease-in-out infinite;
}

.node-name {
    margin-top: 7px;
    padding: 0 7px;
    border-radius: 8px;
    background: var(--bg);
    font-weight: 800;
    font-size: .84rem;
    line-height: 1.2;
}

.node.locked .node-name {
    color: var(--muted);
}

.node .stars .ic {
    width: 15px;
    height: 15px;
}

.node .diff span {
    display: none;
}

.course-stats {
    margin-bottom: 14px;
}

.levels {
    list-style: none;
    display: grid;
    gap: 9px;
    margin: 0 0 16px;
    padding: 0;
}

.level {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 16px 10px 10px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 2px solid var(--card-border);
    color: inherit;
    text-decoration: none;
}

a.level {
    box-shadow: 0 3px 0 var(--card-edge);
    transition: border-color .12s, transform .08s;
}

a.level:hover {
    border-color: var(--fam);
}

a.level:active {
    transform: translateY(2px);
}

.level.current {
    border-color: var(--fam);
    box-shadow: 0 3px 0 var(--fam-edge);
}

.level.locked {
    opacity: .6;
    background: none;
}

.level strong {
    font: 600 1.05rem var(--display);
}

.level .kicker {
    color: var(--muted);
}

.lvl-num {
    flex: none;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--fam);
    color: #fff;
    font: 600 1.15rem var(--display);
}

.lvl-num .ic {
    fill: currentColor;
    width: 22px;
    height: 22px;
}

.lvl-num.cleared {
    background: var(--sun);
    color: #1B1B4B;
}

.locked .lvl-num {
    background: var(--surface-3);
    color: var(--muted);
}

.lvl-stat {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    min-width: 44px;
    font: 500 .9rem var(--display);
    color: var(--muted);
}

.lvl-stat .ic {
    width: 18px;
    height: 18px;
    fill: var(--outline);
}

.lvl-stat.yes .ic {
    fill: var(--ok);
}

.level .diff {
    min-width: 92px;
}

.exam-card {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    padding: 16px;
    max-width: 560px;
    margin: 0 auto;
}

.exam-card strong {
    font: 600 1.15rem var(--display);
}

.exam-card p {
    margin: 2px 0 0;
    font-size: .88rem;
}

/* ---------- A lesson ---------- */
.stage, .game-stage {
    max-width: 720px;
    margin: 0 auto;
}

.stage > * {
    animation: enter .28s cubic-bezier(.2, .9, .3, 1.15);
}

@keyframes enter {
    from { opacity: 0; transform: translateY(12px); }
}

.theory p, .task p {
    line-height: 1.65;
    font-size: 1.04rem;
}

/* Learners must see the characters they will type: no ligatures for => or !== */
code, pre, .editor, .tile-btn, .slot, .tune-chip, .tune-row label {
    font-variant-ligatures: none;
}

code {
    font-family: var(--mono);
    font-size: .9em;
    font-weight: 500;
    background: var(--surface-2);
    padding: 1px 6px;
    border-radius: 6px;
}

.code {
    margin: 14px 0;
    background: var(--code-bg);
    color: var(--code-fg);
    border-radius: var(--r-md);
    overflow: hidden;
}

.code figcaption {
    font: 500 .78rem var(--display);
    padding: 7px 14px 0;
    color: #A8A5E8;
}

.code pre {
    margin: 0;
    padding: 10px 14px 14px;
    overflow-x: auto;
    font-size: .86rem;
    line-height: 1.55;
}

.code code {
    background: none;
    padding: 0;
    color: inherit;
}

.t-tag { color: #FF9A76; }
.t-str { color: #7CE3B8; }
.t-num { color: #FFD166; }
.t-var { color: #F7A8CF; }
.t-prop { color: #8CC8FF; }
.t-note { color: #9794CC; font-style: italic; }

.tip {
    display: flex;
    gap: 10px;
    padding: 14px;
    margin: 14px 0;
    background: var(--primary-container);
    color: var(--on-primary-container);
    border-radius: var(--r-md);
}

.tip p {
    margin: 0;
}

.tip .ic {
    flex: none;
    fill: var(--brand);
}

.step-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
    margin: 18px 0;
}

.quiz h2, .drill h2 {
    font-size: 1.32rem;
    line-height: 1.3;
}

.options {
    display: grid;
    gap: 10px;
}

.option {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    text-align: left;
    padding: 12px 14px;
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    box-shadow: 0 4px 0 var(--card-edge);
    font: inherit;
    cursor: pointer;
    transition: transform .08s, box-shadow .08s, background .15s;
}

.opt-key {
    flex: none;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: var(--surface-2);
    color: var(--muted);
    font: 600 .95rem var(--display);
}

.option:hover:not(:disabled) {
    border-color: var(--brand);
}

.option:active:not(:disabled) {
    transform: translateY(4px);
    box-shadow: 0 0 0 transparent;
}

.option.right {
    background: var(--ok-container);
    border-color: var(--mint);
    box-shadow: 0 4px 0 var(--mint-edge);
}

.option.right .opt-key {
    background: var(--mint);
    color: #fff;
}

.option.wrong {
    background: var(--bad-container);
    border-color: var(--bad);
    box-shadow: 0 4px 0 var(--bad);
}

.option.wrong .opt-key {
    background: var(--bad);
    color: #fff;
}

.option.gone {
    opacity: .35;
    text-decoration: line-through;
    box-shadow: none;
}

.option:disabled {
    cursor: default;
}

.result {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--r-lg);
    animation: enter .25s;
}

.result .mascot {
    width: 44px;
}

.result strong {
    font: 600 1.1rem var(--display);
}

.result p {
    margin: 2px 0 0;
}

.result.ok {
    background: var(--ok-container);
}

.result.ko {
    background: var(--bad-container);
}

.workbench {
    display: grid;
    gap: 10px;
}

@media (min-width: 720px) {
    .workbench:not(.single) {
        grid-template-columns: 1fr 1fr;
    }
}

.editor {
    width: 100%;
    min-height: 240px;
    box-sizing: border-box;
    padding: 14px;
    resize: vertical;
    font: 500 .88rem/1.55 var(--mono);
    background: var(--code-bg);
    color: var(--code-fg);
    caret-color: var(--sun);
    border: 0;
    border-radius: var(--r-md);
    tab-size: 2;
}

.preview {
    width: 100%;
    min-height: 240px;
    background: #fff;
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
}

.checks {
    list-style: none;
    padding: 0;
    margin: 12px 0;
    display: grid;
    gap: 6px;
}

.checks li {
    display: flex;
    gap: 6px;
    align-items: flex-start;
    font-size: .92rem;
}

.checks .ic {
    width: 18px;
    height: 18px;
    flex: none;
    fill: var(--outline);
}

.checks li.ok .ic {
    fill: var(--ok);
}

.checks li.ko {
    color: var(--bad);
}

.checks li.ko .ic {
    fill: var(--bad);
}

.page-src {
    margin: 10px 0;
}

.done {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-align: center;
    padding: 22px 0;
}

.done h2 {
    margin: 8px 0 0;
    font-size: 1.7rem;
}

.done .stars .ic {
    width: 46px;
    height: 46px;
    animation: pop .5s cubic-bezier(.3, 1.8, .5, 1) backwards;
}

.done .stars .ic:nth-child(2) {
    animation-delay: .14s;
}

.done .stars .ic:nth-child(3) {
    animation-delay: .28s;
}

@keyframes pop {
    from { transform: scale(0); }
}

.done .step-actions {
    justify-content: center;
}

.gain {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 14px 5px 9px;
    border-radius: 999px;
    background: var(--primary-container);
    color: var(--on-primary-container);
    font: 600 1.05rem var(--display);
}

.gain .ic {
    fill: var(--gold);
}

.score {
    font: 700 3.4rem var(--display);
    margin: 4px 0;
    color: var(--primary);
}

.review {
    display: grid;
    gap: 10px;
    width: 100%;
    text-align: left;
}

.review-item {
    padding: 12px;
}

.review-item p {
    margin: 4px 0;
}

.review-item p.ok {
    display: flex;
    gap: 5px;
    color: var(--ok);
}

.review-item .ic {
    width: 18px;
    height: 18px;
    fill: var(--ok);
    flex: none;
}

.levelup {
    text-align: center;
    display: grid;
    gap: 8px;
    justify-items: center;
}

.exam-clock {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    max-width: 720px;
    margin: -8px auto 12px;
    font: 600 1.25rem var(--display);
    font-variant-numeric: tabular-nums;
    color: var(--muted);
}

.exam-clock .ic {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.exam-clock.low {
    color: var(--bad);
}

/* ---------- Drills ---------- */
.drill-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.drill-kind {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px 4px 8px;
    border-radius: 999px;
    font: 600 .86rem var(--display);
    background: var(--tone);
    color: #1B1B4B;
}

.drill-kind .ic {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.k-blanks { --tone: var(--sun); }
.k-order { --tone: #8CC8FF; }
.k-bug { --tone: #FF9FB3; }
.k-match { --tone: #7CE3B8; }
.k-flash { --tone: var(--sun); }
.k-tune { --tone: #C7B5FF; }

.lives {
    margin-left: auto;
    display: inline-flex;
}

.lives .ic {
    width: 22px;
    height: 22px;
    fill: var(--gold);
    transition: fill .2s, transform .2s;
}

.lives .ic.off {
    fill: var(--surface-3);
    transform: scale(.8);
}

.drill-body {
    margin-top: 14px;
}

.win {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: var(--r-lg);
    background: var(--ok-container);
    animation: enter .3s cubic-bezier(.2, .9, .3, 1.2);
}

.win strong {
    font: 600 1.2rem var(--display);
    color: var(--ok);
}

.win p {
    margin: 2px 0 0;
}

.win .grow {
    flex-basis: 180px;
}

.win .btn {
    margin-left: auto;
}

/* A finished drill keeps only its result */
.drill-body.finished {
    pointer-events: none;
}

.finished .tile-tray, .finished .flash-top, .finished .flash-card, .finished .flash-btns, .finished .tune-meter, .finished .tune-controls,
.finished .sort-item .icon-btn, .finished .grip, .finished .pair-top {
    display: none;
}

.finished .sort-item code {
    padding-left: 12px;
}

.flash-done {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 2px solid var(--card-border);
    animation: enter .25s;
}

.flash-done .ic {
    fill: var(--ok);
}

.flash-done strong {
    font: 600 1.25rem var(--display);
}

.flash-done span {
    font: 600 1rem var(--display);
    color: var(--primary);
}

/* tiles */
.gap-code, .bug-code, .sort-item code, .tile-btn, .pair code, .tune-row label {
    font-family: var(--mono);
    font-weight: 500;
}

.gap-code {
    margin: 0;
    padding: 16px;
    border-radius: var(--r-md);
    background: var(--code-bg);
    color: var(--code-fg);
    font-size: .95rem;
    line-height: 2.5;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.slot {
    display: inline-block;
    min-width: 58px;
    min-height: 32px;
    padding: 2px 10px;
    margin: 0 2px;
    border: 2px dashed #6F6BB0;
    border-radius: 9px;
    background: rgb(255 255 255 / .06);
    color: var(--sun);
    font: 700 .95rem var(--mono);
    line-height: 1.5;
    vertical-align: middle;
    cursor: pointer;
}

.slot:not(:empty) {
    border-style: solid;
    border-color: var(--sun);
}

.slot.fit {
    border-color: var(--mint);
    background: var(--mint);
    color: #06281E;
}

.tile-tray {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 16px;
}

.tile-btn {
    min-height: 46px;
    padding: 8px 16px;
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    background: var(--surface);
    color: var(--text);
    font-size: 1rem;
    box-shadow: 0 4px 0 var(--card-edge);
    cursor: pointer;
    transition: transform .08s, box-shadow .08s, opacity .15s;
}

.tile-btn:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 transparent;
}

.tile-btn.used {
    opacity: .28;
    box-shadow: none;
    transform: translateY(4px);
    cursor: default;
}

/* sort */
.sort-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 7px;
}

.sort-item {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 3px 4px 3px 2px;
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    box-shadow: 0 3px 0 var(--card-edge);
}

.sort-item {
    cursor: grab;
    user-select: none;
}

.sort-item.dragging {
    cursor: grabbing;

    border-color: var(--brand);
    box-shadow: 0 8px 18px rgb(27 27 75 / .25);
    z-index: 2;
    position: relative;
}

.sort-item.fit {
    border-color: var(--mint);
    background: var(--ok-container);
    box-shadow: 0 3px 0 var(--mint-edge);
}

.sort-item.ko {
    border-color: var(--bad);
}

.sort-item code {
    flex: 1;
    min-width: 0;
    padding: 4px;
    background: none;
    white-space: pre;
    overflow-x: auto;
    color: var(--text);
    font-size: .88rem;
}

.sort-item .icon-btn {
    width: 34px;
    height: 34px;
    flex: none;
}

.grip {
    flex: none;
    display: grid;
    place-items: center;
    width: 32px;
    height: 38px;
    touch-action: none;
    cursor: grab;
}

.grip .ic {
    fill: var(--outline);
    width: 20px;
    height: 20px;
}

/* the colours of code are made for dark backgrounds: light surfaces get deeper ones */
.sort-item .t-tag, .pair .t-tag { color: inherit; }
.sort-item span[class^="t-"] { color: inherit; font-style: normal; }

/* bug hunt */
.bug-code {
    border-radius: var(--r-md);
    background: var(--code-bg);
    color: var(--code-fg);
    padding: 8px 0;
    overflow: hidden;
}

.bug-line {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 42px;
    padding: 4px 12px;
    border: 0;
    border-left: 4px solid transparent;
    background: none;
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.bug-line:hover:not(:disabled) {
    background: rgb(255 255 255 / .08);
}

.bug-line .ln {
    flex: none;
    width: 18px;
    color: #7B78BC;
    font: 600 .8rem var(--mono);
    text-align: right;
}

.bug-line code {
    background: none;
    padding: 0;
    color: inherit;
    white-space: pre;
    overflow-x: auto;
    font-size: .92rem;
}

.bug-line.clean {
    opacity: .4;
    cursor: default;
}

.bug-line.found {
    background: rgb(255 77 109 / .22);
    border-left-color: #FF4D6D;
    text-decoration: line-through;
    text-decoration-color: #FF4D6D;
}

.bug-fix {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px 6px 22px;
    background: rgb(18 184 134 / .22);
    border-left: 4px solid var(--mint);
    animation: enter .25s;
}

.bug-fix .ic {
    width: 18px;
    height: 18px;
    fill: #4FE3B4;
    flex: none;
}

.bug-fix code {
    background: none;
    padding: 0;
    color: inherit;
    white-space: pre;
    overflow-x: auto;
    font-size: .92rem;
}

/* pairs */
.pair-top {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 8px;
}

.clock {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font: 500 .95rem var(--display);
    color: var(--muted);
}

.clock .ic {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.pairs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.pair-col {
    display: grid;
    gap: 9px;
    align-content: start;
}

.pair {
    min-height: 56px;
    padding: 8px 10px;
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    background: var(--surface);
    color: var(--text);
    font: 700 .88rem/1.2 var(--body);
    box-shadow: 0 4px 0 var(--card-edge);
    cursor: pointer;
    overflow-wrap: anywhere;
    transition: transform .12s, box-shadow .08s, opacity .2s, border-color .1s;
}

.pair code {
    background: none;
    padding: 0;
    font-size: .88rem;
}

.pair.sel {
    border-color: var(--sky);
    background: color-mix(in srgb, var(--sky) 16%, var(--surface));
    box-shadow: 0 4px 0 var(--sky-edge);
    transform: translateY(-2px);
}

.pair.gone {
    border-color: var(--mint);
    background: var(--ok-container);
    box-shadow: none;
    opacity: .45;
    transform: scale(.96);
    cursor: default;
}

/* lightning */
.flash-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 28px;
    margin-bottom: 8px;
}

.combo {
    font: 600 1.15rem var(--display);
    color: var(--primary);
}

.combo.pop {
    animation: pop .3s cubic-bezier(.3, 1.8, .5, 1);
}

.flash-card {
    position: relative;
    overflow: hidden;
    display: grid;
    place-items: center;
    min-height: 200px;
    padding: 30px 22px 22px;
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-xl);
    box-shadow: 0 6px 0 var(--card-edge);
    touch-action: pan-y;
    user-select: none;
}

.flash-card.deal {
    animation: enter .22s cubic-bezier(.2, .9, .3, 1.2);
}

.fuse {
    position: absolute;
    inset: 0 0 auto 0;
    height: 9px;
    background: var(--surface-2);
}

.fuse i {
    display: block;
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--brand), var(--sun));
}

.flash-text {
    margin: 0;
    text-align: center;
    font: 500 1.35rem/1.35 var(--display);
}

.flash-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 18px;
}

.flash-btns .btn {
    min-height: 58px;
    font-size: 1.15rem;
}

.flash-yes.btn-tonal {
    background: var(--mint);
    color: #06281E;
    border-color: var(--mint);
    box-shadow: 0 5px 0 var(--mint-edge);
}

.flash-no.btn-tonal {
    background: #FF6B86;
    color: #3D0512;
    border-color: #FF6B86;
    box-shadow: 0 5px 0 #C93A58;
}

.flash-btns .ic {
    fill: currentColor;
}

.flash-btns .glow {
    outline: 4px solid var(--sun);
    outline-offset: 2px;
}

/* tune */
.tune-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.tune-pair figure {
    margin: 0;
    min-width: 0;
}

.tune-pair figcaption {
    margin-top: 5px;
    text-align: center;
    font: 500 .88rem var(--display);
    color: var(--muted);
}

.tune-stage {
    position: relative;
    height: 200px;
    box-sizing: border-box;
    padding: 10px;
    overflow: hidden;
    border-radius: var(--r-md);
    background: var(--code-bg);
    transition: box-shadow .2s;
}

.tune-stage.goal {
    background-image: radial-gradient(rgb(255 255 255 / .1) 1.5px, transparent 1.5px);
    background-size: 14px 14px;
}

.tune-stage.fit {
    box-shadow: 0 0 0 4px var(--mint);
}

.tune-item {
    display: block;
    min-width: 34px;
    min-height: 34px;
    border-radius: 9px;
    background: var(--brand);
    transition: all .15s;
}

.tune-item.c1 { background: var(--sun); }
.tune-item.c2 { background: var(--mint); }
.tune-item.c3 { background: var(--sky); }

.tune-meter {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 14px 0;
}

.tune-meter .bar {
    flex: 1;
}

.tune-meter .bar i {
    background: linear-gradient(90deg, var(--brand), var(--sun), var(--mint));
}

.tune-meter b {
    font: 600 1.05rem var(--display);
    min-width: 46px;
    text-align: right;
}

.tune-controls {
    display: grid;
    gap: 14px;
}

.tune-row label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: .88rem;
}

.tune-row label b {
    color: var(--primary);
}

.tune-row input[type="range"] {
    width: 100%;
    height: 32px;
    margin: 0;
    accent-color: var(--brand);
}

.tune-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.tune-chip {
    min-height: 40px;
    padding: 6px 12px;
    border: 2px solid var(--card-border);
    border-radius: var(--r-sm);
    background: var(--surface);
    color: var(--text);
    font: 500 .84rem var(--mono);
    box-shadow: 0 3px 0 var(--card-edge);
    cursor: pointer;
}

.tune-chip.sel {
    border-color: var(--brand);
    background: var(--primary-container);
    color: var(--on-primary-container);
    box-shadow: 0 3px 0 var(--primary-edge);
}

.swatch {
    display: block;
    width: 26px;
    height: 26px;
    border-radius: 7px;
}

/* ---------- Statistics ---------- */
.week {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 130px;
}

.wk {
    flex: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    font-size: .74rem;
    gap: 3px;
}

.wk i {
    width: 100%;
    max-width: 34px;
    border-radius: 8px;
    background: var(--brand);
    min-height: 3px;
}

.cal {
    display: grid;
    grid-template-rows: repeat(7, 1fr);
    grid-auto-flow: column;
    gap: 3px;
    width: fit-content;
    max-width: 100%;
}

.cal i {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    background: var(--surface-2);
}

.cal .l1 {
    background: #FFD2B8;
}

.cal .l2 {
    background: #FF8A5C;
}

.cal .l3 {
    background: #D93A14;
}

@media (max-width: 420px) {
    .cal i {
        width: 11px;
        height: 11px;
    }
}

.cert-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
}

.cert-row p {
    margin: 0;
    font-size: .82rem;
}

.badges {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}

.badge {
    display: grid;
    gap: 4px;
    padding: 12px;
    border-radius: var(--r-lg);
    background: var(--surface-2);
    opacity: .6;
}

.badge .tile {
    background: var(--surface-3);
    color: var(--muted);
}

.badge.on {
    opacity: 1;
    border: 2px solid var(--card-border);
    background: var(--surface);
    box-shadow: 0 4px 0 var(--sun-edge);
}

.badge.on .tile {
    background: var(--sun);
    color: #1B1B4B;
}

.badge strong {
    font: 600 .98rem var(--display);
}

.badge span:last-child {
    font-size: .78rem;
    color: var(--muted);
}

/* ---------- Profile ---------- */
.me {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.me p {
    margin: 0;
}

.setting {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 13px 14px;
    background: none;
    border: 0;
    border-bottom: 1px solid var(--outline-variant);
    color: inherit;
    font: inherit;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.setting span {
    flex: 1;
}

.setting .ic {
    fill: var(--muted);
}

.setting.danger {
    color: var(--bad);
}

.donate {
    --tone: var(--pink);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    margin-bottom: 16px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 0 var(--pink-edge);
    color: inherit;
    text-decoration: none;
}

.donate .quick-ic {
    margin: 0;
    flex: none;
}

.donate .quick-ic .ic {
    fill: #fff;
}

.donate > .ic {
    fill: var(--muted);
    flex: none;
}

.donate strong {
    display: block;
    font: 600 1.1rem var(--display);
}

.donate .grow > span {
    font-size: .88rem;
    color: var(--muted);
}

.credit {
    display: inline-flex;
    align-items: baseline;
    gap: 7px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 18px;
    color: var(--muted);
    text-decoration: none;
}

/* The signature of Saverio Morelli, as in his other projects: only this name uses the font */
.credit-name {
    font-family: 'Stack Sans Notch', var(--body);
    font-size: 1.08rem;
    color: var(--text);
    letter-spacing: .01em;
    transition: color .15s;
}

.credit:hover .credit-name, .credit:focus-visible .credit-name {
    color: var(--primary);
}

.version-btn {
    min-height: 40px;
    padding: 6px 14px;
    border: 0;
    border-radius: var(--r-sm);
    background: none;
    color: var(--muted);
    font: 700 .82rem var(--body);
    text-decoration: underline;
    text-underline-offset: 3px;
    cursor: pointer;
}

.version-btn:hover {
    color: var(--primary);
}

.releases {
    display: grid;
    gap: 16px;
}

.release h3 {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    margin: 0 0 4px;
    font-size: 1.15rem;
    color: var(--primary);
}

.release small {
    font: 600 .8rem var(--body);
    color: var(--muted);
}

.release ul {
    margin: 0;
    padding-left: 20px;
    line-height: 1.5;
}

.verify-link {
    color: var(--muted);
}

.setting.toggle span {
    display: grid;
}

.setting.toggle strong {
    font-weight: 800;
}

.setting.toggle small {
    color: var(--muted);
    font-size: .82rem;
}

.setting i.switch {
    flex: none;
    position: relative;
    width: 46px;
    height: 28px;
    border-radius: 999px;
    background: var(--surface-3);
    transition: background .15s;
}

.setting i.switch::after {
    content: '';
    position: absolute;
    left: 3px;
    top: 3px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    transition: transform .15s;
}

.setting i.switch.on {
    background: var(--mint);
}

.setting i.switch.on::after {
    transform: translateX(18px);
}

/* ---------- Sign in ---------- */
.auth-top {
    background: #D93A14;
    color: #fff;
    border-radius: 0 0 var(--r-xl) var(--r-xl);
}

.auth-top h1 {
    color: #fff;
    font-size: 2.5rem;
    margin: 8px 0 2px;
}

.auth-top p {
    color: #fff;
}

.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.auth-brand img {
    width: 58px;
    height: 58px;
    border-radius: 14px;
}

.auth-brand h1 {
    margin: 0;
}

.auth-pet {
    display: block;
    width: 84px;
    margin: 14px auto 0;
}

@media (min-width: 960px) {
    .auth-brand {
        justify-content: flex-start;
    }

    .auth-pet {
        margin-left: 0;
    }
}

/* ---------- Grade ---------- */
.r-spark { --rank: #FF5B2E; --rank-edge: #BF3C14; }
.r-apprentice { --rank: #12B886; --rank-edge: #0B8A63; }
.r-smith { --rank: #2F8CF0; --rank-edge: #1B66BC; }
.r-artisan { --rank: #7048E8; --rank-edge: #5230BA; }
.r-master { --rank: #F03E82; --rank-edge: #BC2460; }
.r-legend { --rank: #E8A400; --rank-edge: #B07C00; }

.grade {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    flex: none;
    padding: 3px 12px 3px 3px;
    border-radius: 999px;
    background: var(--surface);
    border: 2px solid var(--card-border);
    color: var(--text);
    text-decoration: none;
}

.grade-num {
    display: grid;
    place-items: center;
    min-width: 32px;
    height: 32px;
    padding: 0 4px;
    box-sizing: border-box;
    border-radius: 50%;
    background: var(--rank);
    box-shadow: 0 2px 0 var(--rank-edge);
    color: #fff;
    font: 600 1.05rem var(--display);
}

.grade-text {
    display: grid;
    gap: 3px;
    width: 88px;
}

.grade-text strong {
    font: 600 .86rem/1 var(--display);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.grade-bar {
    display: block;
    height: 6px;
    border-radius: 99px;
    overflow: hidden;
    background: var(--surface-2);
}

.grade-bar i {
    display: block;
    height: 100%;
    background: var(--rank);
}

@media (max-width: 560px) {
    .grade {
        padding: 3px;
    }

    .grade-text {
        display: none;
    }
}

.sidenav .grade {
    display: flex;
    margin: 6px 0 10px;
}

.sidenav .grade-text {
    display: grid;
    flex: 1;
    width: auto;
}

.medal {
    flex: none;
    display: grid;
    place-content: center;
    justify-items: center;
    width: 82px;
    height: 82px;
    border-radius: 26px;
    background: var(--rank);
    color: #fff;
    box-shadow: 0 5px 0 var(--rank-edge);
    transform: rotate(-3deg);
}

.medal small {
    font: 500 .74rem/1 var(--display);
    opacity: .95;
}

.medal b {
    font: 700 2.5rem/1 var(--display);
}

.rank strong {
    color: var(--rank);
    font-size: 1.45rem;
}

:root[data-theme="dark"] .rank strong {
    color: var(--text);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .rank strong {
        color: var(--text);
    }
}

.rank .bar i {
    background: var(--rank);
}

/* ---------- Leaderboard ---------- */
.quick-card.pink { --tone: var(--pink); --tone-edge: var(--pink-edge); }

.quick-card.pink .quick-ic .ic {
    fill: #fff;
}

.friend-list {
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
}

.friend {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 54px;
    box-sizing: border-box;
    padding: 6px 8px 6px 12px;
    border-radius: var(--r-md);
    background: var(--surface);
    border: 2px solid var(--card-border);
    font-weight: 800;
}

.friend .btn {
    margin-bottom: 0;
    min-height: 38px;
}

.board-head + .seg, .seg + .seg {
    margin-bottom: 8px;
}

.board .board-row + .board-row {
    margin: 0;
}

a.btn-block {
    margin: 4px 0 14px;
    text-decoration: none;
}

.board-head {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: var(--r-xl);
    background: var(--violet);
    color: #fff;
    box-shadow: 0 5px 0 var(--violet-edge);
    margin-bottom: 14px;
}

.board-head strong {
    font: 600 1.4rem var(--display);
}

.board-head p {
    margin: 0;
}

.prizes {
    display: flex;
    gap: 10px;
    margin-bottom: 14px;
}

.prize {
    flex: 1;
    display: grid;
    justify-items: center;
    gap: 2px;
    padding: 10px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 0 var(--sun-edge);
}

.prize b {
    font: 600 1.2rem var(--display);
}

.prize span {
    display: inline-flex;
    align-items: center;
    font: 600 1.05rem var(--display);
}

.prize .ic, .won .ic {
    width: 18px;
    height: 18px;
    fill: var(--gold);
}

.board {
    list-style: none;
    margin: 0 0 12px;
    padding: 0;
    display: grid;
    gap: 8px;
}

.board-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--r-md);
    background: var(--surface);
    border: 2px solid var(--card-border);
}

.board-row.you {
    border-color: var(--brand);
    background: var(--primary-container);
    color: var(--on-primary-container);
}

.board-grade {
    font-size: .78rem;
    color: inherit;
    opacity: .75;
    white-space: nowrap;
}

.board-row strong {
    font: 600 1rem var(--display);
    white-space: nowrap;
}

.won {
    display: inline-flex;
    align-items: center;
}

.place {
    flex: none;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--surface-2);
    font: 600 .95rem var(--display);
}

.place.p1 { background: var(--sun); color: #1B1B4B; }
.place.p2 { background: #CFD3E6; color: #1B1B4B; }
.place.p3 { background: #F0A878; color: #1B1B4B; }

.game-sparks {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    margin-bottom: 14px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 2px solid var(--card-border);
}

.game-sparks > .ic {
    fill: var(--gold);
    flex: none;
}

.game-sparks strong {
    display: block;
    font: 600 .95rem var(--display);
    margin-bottom: 5px;
}

.game-sparks .bar i {
    background: var(--gold);
}

.game-sparks > b {
    font: 600 .95rem var(--display);
    white-space: nowrap;
}

.badge-won {
    display: grid;
    gap: 10px;
    justify-items: center;
    text-align: center;
}

.badge-won .badge {
    justify-items: center;
    min-width: 200px;
    animation: pop .45s cubic-bezier(.3, 1.8, .5, 1);
}

/* ---------- Navigation ---------- */
.bottomnav {
    background: var(--surface);
    border-top: 2px solid var(--card-border);
}

.bottomnav a {
    font-family: var(--display);
    font-weight: 500;
}

.bottomnav a .pill {
    border-radius: var(--r-sm);
}

.bottomnav a.active .pill {
    background: var(--primary-container);
    color: var(--primary);
}

.bottomnav a.active .pill .ic {
    fill: var(--primary);
}

.sidenav {
    background: var(--surface);
    border-right: 2px solid var(--card-border);
}

.sn-brand img {
    width: 34px;
    height: 34px;
    border-radius: 9px;
}

.sn-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: inherit;
}

.sn-brand strong {
    font-size: 1.5rem;
    color: var(--primary);
}

@media (prefers-reduced-motion: reduce) {
    .mascot, .node-go, .node.current .node-dot, .stage > *, .result, .win, .done .stars .ic {
        animation: none;
    }
}

/* ---------- Games ---------- */
.game-status {
    font: 700 .86rem var(--mono);
    color: var(--muted);
    margin: 6px 0 10px;
}

.game-levels {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
}

.glevel {
    display: grid;
    justify-items: center;
    gap: 4px;
    padding: 14px 6px;
    text-decoration: none;
    color: inherit;
    background: var(--surface);
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    box-shadow: 2px 2px 0 var(--card-border);
}

.glevel b {
    font: 700 1.4rem var(--mono);
}

.glevel.locked {
    opacity: .5;
    box-shadow: none;
    border-style: dashed;
}

.chip-btn {
    padding: 7px 11px;
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--card-border);
    border-radius: var(--r-sm);
    font: 600 .85rem var(--mono);
    cursor: pointer;
}

.chip-btn:hover {
    background: var(--primary-container);
}

.tag-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
    gap: 8px;
    margin-bottom: 14px;
}

.tag-card {
    padding: 14px 4px;
    font: 700 .9rem var(--mono);
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    box-shadow: 2px 2px 0 var(--card-border);
    cursor: pointer;
}

.tag-card.out {
    opacity: .25;
    box-shadow: none;
    transform: rotate(-3deg) scale(.94);
    text-decoration: line-through;
    cursor: default;
}

.qa {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.qa-log {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: .85rem;
}

.qa-log li {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 4px 0;
    border-bottom: 1px solid var(--outline-variant);
}

.doku {
    display: grid;
    width: min(100%, 420px);
    margin: 0 auto 14px;
    border: 3px solid var(--card-border);
    background: var(--card-border);
    gap: 1px;
}

.dk {
    aspect-ratio: 1;
    min-width: 0;
    padding: 0;
    border: 0;
    background: var(--surface);
    color: var(--primary);
    font: 700 clamp(.72rem, 3.4vw, 1rem) var(--mono);
    cursor: pointer;
}

.dk.given {
    background: var(--surface-2);
    color: var(--text);
    cursor: default;
}

.dk.sel {
    outline: 3px solid var(--brand);
    outline-offset: -3px;
}

.dk.bad {
    background: var(--bad-container);
    color: var(--bad);
}

.dk.edge-r {
    border-right: 3px solid var(--card-border);
}

.dk.edge-b {
    border-bottom: 3px solid var(--card-border);
}

.doku-pad {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
}

.four {
    display: flex;
    gap: 3px;
    width: min(100%, 420px);
    margin: 0 auto 14px;
    padding: 6px;
    background: var(--steel);
    border: 2px solid var(--card-border);
    border-radius: var(--r-lg);
}

.four-col {
    flex: 1;
    min-width: 0;
    display: grid;
    gap: 3px;
    padding: 0;
    background: none;
    border: 0;
    cursor: pointer;
}

.four-col:disabled {
    cursor: default;
}

.four-col:not(:disabled):hover i.e {
    background: var(--primary-container);
}

.four-col i {
    display: block;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--bg);
    box-shadow: inset 0 2px 3px rgba(0, 0, 0, .35);
}

.four-col i.me {
    background: var(--ember);
}

.four-col i.ai {
    background: #1C1714;
}

.chess {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    width: min(100%, 420px);
    margin: 10px auto;
    border: 3px solid var(--card-border);
}

.sq {
    aspect-ratio: 1;
    padding: 0;
    border: 0;
    cursor: pointer;
}

.sq.white {
    background: #EADBC8;
}

.sq.black {
    background: #7A5C45;
}

.sq.on {
    box-shadow: inset 0 0 0 4px var(--ember);
    background: #FDBA74;
}

.shake {
    animation: shake .3s;
}

@keyframes shake {
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

.selector {
    display: block;
    text-align: center;
    padding: 10px;
    font-size: 1rem;
    background: var(--code-bg);
    color: var(--code-fg);
    border-radius: var(--r-md);
}

.lines {
    display: grid;
    gap: 6px;
}

.line {
    text-align: left;
    padding: 9px 10px;
    background: var(--code-bg);
    color: var(--code-fg);
    border: 2px solid var(--card-border);
    border-radius: var(--r-sm);
    cursor: pointer;
    overflow-x: auto;
}

.line code {
    background: none;
    color: inherit;
    padding: 0;
    white-space: pre;
}

.line.fit {
    border-color: var(--ok);
    box-shadow: inset 4px 0 0 var(--ok);
}

.line.sel {
    outline: 3px solid var(--ember);
}

@media (prefers-reduced-motion: reduce) {
    .bar i, a.card {
        transition: none;
    }

    .shake {
        animation: none;
    }
}

/* ---------- Admin portal ---------- */
body.admin {
    background-image: none;
}

.adm {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    min-height: 100dvh;
}

.adm-side {
    position: sticky;
    top: 0;
    height: 100dvh;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px 12px;
    background: var(--code-bg);
    color: var(--code-fg);
    overflow-y: auto;
}

.adm-side .sn-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: inherit;
    text-decoration: none;
    font-size: 1.1rem;
}

.adm-side .sn-brand img {
    width: 30px;
    height: 30px;
    border-radius: 6px;
}

.adm-side .muted {
    color: #B3A698;
    margin-bottom: 12px;
}

.adm-side .sn-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    color: inherit;
    text-decoration: none;
    border-radius: var(--r-sm);
}

.adm-side .sn-link .ic {
    fill: currentColor;
}

.adm-side .sn-link.active, .adm-side .sn-link:hover {
    background: #3A302A;
    color: var(--ember);
}

.adm-main {
    padding: 22px clamp(14px, 3vw, 34px) 60px;
    min-width: 0;
}

.adm-page {
    max-width: 1080px;
}

.adm-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    margin: 12px 0;
}

.adm-head h1, .adm-head h2 {
    margin: 0;
}

.adm-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.adm-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.adm-stat {
    padding: 14px;
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    background: var(--surface);
    display: grid;
}

.adm-stat strong {
    font: 700 1.7rem var(--mono);
}

.adm-stat span {
    color: var(--muted);
    font-size: .84rem;
}

.adm-bars {
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 90px;
}

.adm-bars i {
    flex: 1;
    max-width: 22px;
    min-height: 2px;
    background: var(--brand);
}

.tbl-wrap {
    overflow-x: auto;
    border: 2px solid var(--card-border);
    border-radius: var(--r-md);
    background: var(--surface);
}

.tbl {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}

.tbl th {
    text-align: left;
    padding: 9px 10px;
    font: 700 .74rem var(--mono);
    text-transform: uppercase;
    background: var(--surface-2);
}

.tbl td {
    padding: 8px 10px;
    border-top: 1px solid var(--outline-variant);
    vertical-align: middle;
}

.tbl a {
    color: inherit;
}

.nowrap {
    white-space: nowrap;
}

.ctl {
    width: 100%;
    box-sizing: border-box;
    padding: 9px 10px;
    font: inherit;
    color: var(--text);
    background: var(--surface);
    border: 2px solid var(--outline);
    border-radius: var(--r-sm);
}

.ctl:focus {
    outline: none;
    border-color: var(--brand);
}

.ctl.mono, textarea.mono {
    font-family: var(--mono);
    font-size: .85rem;
}

.f {
    display: grid;
    gap: 4px;
    margin-bottom: 12px;
}

.f > span {
    font-weight: 600;
    font-size: .86rem;
}

.f small {
    color: var(--muted);
}

.adm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 0 12px;
}

.lang-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 8px;
}

.lang-col {
    position: relative;
}

.lang-tag {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 1;
    padding: 1px 5px;
    font: 700 .64rem var(--mono);
    background: var(--surface-2);
    border-radius: 3px;
}

.lang-tag.missing {
    background: var(--bad);
    color: #fff;
}

.block {
    padding: 10px;
    margin-bottom: 10px;
    border: 2px solid var(--outline-variant);
    border-radius: var(--r-md);
    background: var(--surface);
}

.block-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 6px;
}

.block-bar b {
    flex: 1;
    font: 700 .78rem var(--mono);
    text-transform: uppercase;
}

.adm-traits {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 4px;
}

.sheet.wide {
    max-width: 860px;
}

.adm-denied {
    max-width: 420px;
    margin: 12vh auto;
    padding: 20px;
    text-align: center;
}

@media (max-width: 760px) {
    .adm {
        grid-template-columns: minmax(0, 1fr);
    }

    .adm-side {
        position: static;
        height: auto;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
    }

    .adm-side .grow, .adm-side > .muted {
        display: none;
    }
}

/* ---------- Details on top of the base components ---------- */
.sn-link {
    border-radius: var(--r-md) !important;
    font-family: var(--display);
    font-weight: 500;
}

.auth-top .tile {
    background: rgb(255 255 255 / .22);
    color: #fff;
}

.adm-grid {
    align-items: start;
}

select.ctl {
    height: auto;
}