/* ═════════════════════════════════════════════════════════════════
   style.css — Foglio di stile UNICO per tutte le pagine di clacla.it
   Un solo file, incluso ovunque con <link rel="stylesheet" href="/style.css">
   Nessuna pagina deve avere <style> proprio: tutto vive qui, così
   l'aspetto resta identico dappertutto (dashboard, login, quiz,
   metadati foto, e qualunque pagina futura).
   ═════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* Palette */
    --bg:        #dff0fb;
    --bg2:       #cce8f7;
    --surface:   #eef6fd;
    --border:    rgba(74,144,217,.18);
    --text:      #1a3a52;
    --muted:     #5a84a0;
    --accent:    #3a7fc1;
    --accent-dk: #2d6aa8;

    --green:     #0B8C6A;
    --green-lt:  #e6f6f2;
    --red:       #C0392B;
    --red-lt:    #fcecea;
    --amber:     #D4890A;
    --amber-lt:  #fef6e4;

    /* Layout */
    --tile-size: 160px;
    --gap:       14px;
    --radius:    8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --shadow:    0 4px 24px rgba(58,127,193,.10);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

a { color: inherit; }

/* ═════════════════════════════════════════════════════════════════
   TOPBAR — identica su ogni pagina interna (tranne login)
   ═════════════════════════════════════════════════════════════════ */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .6rem 2rem;
    background: rgba(255,255,255,.6);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
}
.topbar-brand {
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--accent);
}
.topbar-right {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}
.topbar-time {
    font-size: .82rem;
    color: var(--muted);
    letter-spacing: .04em;
}

/* Pulsante "pillola" outline — Esci / Torna alla dashboard / azioni secondarie */
.pill-btn, .logout-btn, .back-btn {
    font-size: .75rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
    background: none;
    padding: .28rem .7rem;
    border: 1px solid rgba(74,144,217,.3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: color .15s, border-color .15s;
}
.pill-btn:hover, .logout-btn:hover, .back-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ═════════════════════════════════════════════════════════════════
   CONTENITORI DI PAGINA
   ═════════════════════════════════════════════════════════════════ */
.dashboard { min-height: 100vh; display: flex; flex-direction: column; }

.main, .container {
    flex: 1;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    padding: 2.5rem 2rem 4rem;
}
.container { max-width: 860px; }

.section-label {
    font-size: .7rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1.2rem;
}

h1 { font-size: 1.5rem; font-weight: 500; margin-bottom: .25rem; color: var(--text); }
.subtitle { color: var(--muted); font-size: .9rem; margin-bottom: 2rem; }

footer {
    text-align: center;
    padding: 1rem;
    font-size: .7rem;
    color: var(--muted);
    letter-spacing: .06em;
    border-top: 1px solid var(--border);
}

/* ═════════════════════════════════════════════════════════════════
   LOGIN SCREEN
   ═════════════════════════════════════════════════════════════════ */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #cce8f7 0%, #dff0fb 60%, #eaf6ff 100%);
    position: relative;
}
.login-box {
    width: 100%;
    max-width: 340px;
    padding: 2.5rem 2rem;
    background: rgba(255,255,255,.72);
    border: 1px solid rgba(74,144,217,.25);
    border-radius: var(--radius-lg);
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}
.login-clock {
    font-size: 5rem;
    font-weight: 200;
    color: var(--accent);
    line-height: 1;
    letter-spacing: -.03em;
}
.login-date {
    font-size: .82rem;
    color: var(--muted);
    letter-spacing: .1em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}
.login-box h1 {
    font-size: .85rem;
    font-weight: 400;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1.2rem;
}
.dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 1.5rem;
}
.dot {
    width: 9px; height: 9px;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    background: transparent;
    transition: background .15s;
}
.dot.filled { background: var(--accent); }

.login-input {
    width: 100%;
    padding: .7rem 1rem;
    background: rgba(255,255,255,.8);
    border: 1.5px solid rgba(74,144,217,.35);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 1rem;
    text-align: center;
    letter-spacing: .15em;
    outline: none;
    transition: border-color .2s;
    margin-bottom: .75rem;
}
.login-input::placeholder { color: #a0c0d8; letter-spacing: .06em; }
.login-input:focus { border-color: var(--accent); }

.login-btn {
    width: 100%;
    padding: .7rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: .1em;
    text-transform: uppercase;
    transition: background .15s;
}
.login-btn:hover { background: var(--accent-dk); }

.login-error {
    margin-top: .8rem;
    color: var(--red);
    font-size: .83rem;
}

/* ═════════════════════════════════════════════════════════════════
   TILES GRID — dashboard principale
   ═════════════════════════════════════════════════════════════════ */
.tiles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, var(--tile-size));
    grid-auto-rows: var(--tile-size);
    gap: var(--gap);
    justify-content: start;
}
.tile {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: .9rem;
    transition: transform .14s, box-shadow .14s;
    color: #fff;
    outline: none;
}
.tile::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0);
    transition: background .15s;
}
.tile:hover { transform: scale(.97); box-shadow: 0 6px 24px rgba(58,127,193,.22); }
.tile:hover::after { background: rgba(0,0,0,.08); }
.tile:active { transform: scale(.93); }
.tile:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tile.inactive { opacity: .55; cursor: default; pointer-events: none; }

.tile-icon {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -60%);
    font-size: 2.8rem;
    opacity: .45;
    pointer-events: none;
    transition: opacity .15s, transform .15s;
}
.tile:hover .tile-icon { opacity: .6; transform: translate(-50%,-65%); }
.tile-text { position: relative; z-index: 1; }
.tile-name { font-size: .83rem; font-weight: 700; line-height: 1.25; letter-spacing: .01em; }
.tile-sub  { font-size: .68rem; opacity: .8; margin-top: .15rem; }
.tile-stripe {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: rgba(255,255,255,.3);
}

/* ═════════════════════════════════════════════════════════════════
   CARD / UPLOAD BOX — usati in tutte le sotto-app (metadati, ecc.)
   ═════════════════════════════════════════════════════════════════ */
.upload-card, .card-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

.drop-zone {
    border: 2px dashed rgba(74,144,217,.4);
    border-radius: var(--radius);
    padding: 2.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}
.drop-zone:hover { border-color: var(--accent); background: rgba(74,144,217,.06); }
.drop-zone input[type=file] { display: none; }
.drop-zone .icon { font-size: 2.5rem; margin-bottom: .5rem; }
.drop-zone p { color: var(--muted); font-size: .9rem; }
.drop-zone strong { color: var(--accent); cursor: pointer; }

/* ═════════════════════════════════════════════════════════════════
   BOTTONI GENERICI
   ═════════════════════════════════════════════════════════════════ */
.btn {
    display: inline-block;
    padding: .6rem 1.5rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s, opacity .15s, transform .1s;
    text-decoration: none;
    text-align: center;
}
.btn:hover { background: var(--accent-dk); }
.btn:active { transform: scale(.97); }
.btn-block { display: block; width: 100%; }
.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}
.btn-outline:hover { background: rgba(74,144,217,.08); }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #a5301f; }

/* ═════════════════════════════════════════════════════════════════
   MESSAGGI DI STATO
   ═════════════════════════════════════════════════════════════════ */
.error, .msg-error {
    background: var(--red-lt); border: 1px solid rgba(192,57,43,.3); color: var(--red);
    border-radius: var(--radius); padding: .75rem 1rem; margin-bottom: 1.5rem; font-size: .9rem;
}
.success, .msg-success {
    background: var(--green-lt); border: 1px solid rgba(11,140,106,.3); color: var(--green);
    border-radius: var(--radius); padding: .75rem 1rem; margin-bottom: 1.5rem; font-size: .9rem;
}
.warning, .msg-warning {
    background: var(--amber-lt); border: 1px solid rgba(212,137,10,.3); color: var(--amber);
    border-radius: var(--radius); padding: .75rem 1rem; margin-bottom: 1.5rem; font-size: .9rem;
}

.file-banner {
    background: rgba(74,144,217,.1);
    border: 1px solid rgba(74,144,217,.3);
    border-radius: var(--radius);
    padding: .6rem 1rem;
    margin-bottom: 1.5rem;
    font-size: .9rem;
    color: var(--accent-dk);
    display: flex;
    align-items: center;
    gap: .5rem;
}

/* ═════════════════════════════════════════════════════════════════
   SEZIONI COLLASSABILI + META-DATI (usato da metadati foto, debug, ecc.)
   ═════════════════════════════════════════════════════════════════ */
.results { display: grid; gap: 1.25rem; }

.section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.section-header {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .85rem 1.25rem;
    background: rgba(74,144,217,.08);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    user-select: none;
}
.section-header .badge {
    margin-left: auto;
    font-size: .75rem;
    background: rgba(74,144,217,.14);
    color: var(--accent);
    padding: .15rem .55rem;
    border-radius: 20px;
    font-weight: 500;
}
.section-header .chevron { margin-left: .25rem; transition: transform .2s; font-style: normal; }
.section-body { padding: 1rem 1.25rem; }
.section.collapsed .section-body { display: none; }
.section.collapsed .chevron { transform: rotate(-90deg); }

.meta-group {
    margin: .25rem 0 .5rem;
    padding: .5rem .75rem;
    background: rgba(74,144,217,.05);
    border-radius: 6px;
    border-left: 3px solid var(--border);
}
.meta-group.depth-1 { background: rgba(74,144,217,.08); border-color: var(--accent); }
.meta-group.depth-2 { background: rgba(74,144,217,.12); border-color: var(--accent-dk); }
.group-key {
    display: block;
    font-weight: 600;
    font-size: .85rem;
    color: var(--accent);
    margin-bottom: .35rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.meta-row {
    display: flex;
    gap: .75rem;
    padding: .3rem 0;
    border-bottom: 1px solid rgba(74,144,217,.1);
    font-size: .875rem;
    align-items: baseline;
}
.meta-row:last-child { border-bottom: none; }
.meta-key { flex: 0 0 180px; color: var(--muted); font-size: .82rem; }
.meta-val { color: var(--text); word-break: break-word; }
.meta-val a { color: var(--accent); text-decoration: none; }
.meta-val a:hover { text-decoration: underline; }
.meta-val em { color: #a0c0d8; font-style: normal; }

/* Tabelle debug (chiave/tipo/valore) */
table { width: 100%; border-collapse: collapse; font-size: .83rem; }
th {
    background: rgba(74,144,217,.08);
    text-align: left;
    padding: .45rem .9rem;
    font-weight: 600;
    color: var(--accent);
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--border);
}
td {
    padding: .4rem .9rem;
    border-bottom: 1px solid rgba(74,144,217,.1);
    vertical-align: top;
    word-break: break-all;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(74,144,217,.04); }

.tag-key { color: var(--muted); font-family: monospace; }
.tag-type {
    font-family: monospace;
    font-size: .78rem;
    background: rgba(74,144,217,.12);
    color: var(--accent);
    padding: .1rem .4rem;
    border-radius: 4px;
    white-space: nowrap;
}
.tag-val { font-family: monospace; color: var(--text); }
.tag-val.warn { color: var(--red); font-weight: 600; }

pre {
    background: #1a2b3d;
    color: #cfe4f5;
    padding: 1rem;
    font-size: .8rem;
    overflow-x: auto;
    line-height: 1.5;
    margin: 0;
    border-radius: var(--radius-sm);
}

.pill-array { display: inline-flex; gap: .3rem; flex-wrap: wrap; }
.pill {
    background: rgba(74,144,217,.08);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: .1rem .45rem;
    font-family: monospace;
    font-size: .78rem;
}

/* ═════════════════════════════════════════════════════════════════
   FORM GENERICI
   ═════════════════════════════════════════════════════════════════ */
.form-input, input[type=text], input[type=password], input[type=email],
input[type=number], select, textarea {
    width: 100%;
    padding: .65rem 1rem;
    background: rgba(255,255,255,.8);
    border: 1.5px solid rgba(74,144,217,.35);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: .95rem;
    outline: none;
    transition: border-color .2s;
    font-family: inherit;
}
.form-input:focus, input:focus, select:focus, textarea:focus { border-color: var(--accent); }
.form-input::placeholder, input::placeholder { color: #a0c0d8; }

.form-group { margin-bottom: 1rem; }
.form-label {
    display: block;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: .4rem;
}

/* ═════════════════════════════════════════════════════════════════
   QUIZ — card, opzioni, timer, risultati
   ═════════════════════════════════════════════════════════════════ */
.nav-domande { display: flex; gap: 8px; margin-bottom: 4px; }
.nav-link {
    font-size: .78rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    border: 2px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    text-decoration: none;
    transition: all .2s;
    white-space: nowrap;
}
.nav-link:hover { border-color: var(--accent); color: var(--accent); }
.nav-link.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.mode-toggle { display: flex; gap: 6px; }
.mode-btn {
    font-size: .78rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 20px;
    border: 2px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    cursor: pointer;
    transition: all .2s;
}
.mode-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.card.quiz-card {
    width: 100%;
    max-width: 680px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    border-left: 5px solid var(--border);
    transition: border-color .35s ease;
    margin: 0 auto;
}
.card.quiz-card.correct { border-left-color: var(--green); }
.card.quiz-card.wrong   { border-left-color: var(--red); }
.card.quiz-card.skipped { border-left-color: var(--amber); }

.progress-wrap { height: 5px; background: rgba(74,144,217,.1); }
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-dk));
    transition: width .4s ease;
    width: 0%;
}

.card-body { padding: 28px 28px 24px; }
.meta-row-q { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.q-counter {
    font-size: .78rem;
    font-weight: 700;
    font-family: ui-monospace, monospace;
    color: var(--accent);
    background: rgba(74,144,217,.08);
    padding: 4px 10px;
    border-radius: 6px;
}
.cat-badge {
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .05em;
    text-transform: uppercase;
    color: var(--muted);
    background: rgba(74,144,217,.08);
    padding: 4px 10px;
    border-radius: 6px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.timer-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.timer-track { flex: 1; height: 4px; background: var(--border); border-radius: 4px; overflow: hidden; }
.timer-fill {
    height: 100%; width: 100%;
    background: var(--accent);
    transform-origin: left;
    transition: width .9s linear;
}
.timer-fill.urgent { background: var(--red); }
.timer-label {
    font-size: .78rem; font-weight: 700;
    font-family: ui-monospace, monospace;
    color: var(--accent);
    min-width: 28px; text-align: right;
}
.timer-label.urgent { color: var(--red); }
.timer-bar.hidden { display: none; }

.question-text { font-size: 1.05rem; line-height: 1.6; font-weight: 500; margin-bottom: 22px; color: var(--text); }

.options { display: flex; flex-direction: column; gap: 10px; }
.option-btn {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
    text-align: left;
    background: rgba(74,144,217,.06);
    border: 2px solid transparent;
    border-radius: 10px;
    padding: 13px 16px;
    font-size: .95rem;
    line-height: 1.5;
    color: var(--text);
    cursor: pointer;
    transition: background .15s, border-color .15s, transform .1s;
    -webkit-tap-highlight-color: transparent;
}
.option-btn:hover:not(:disabled) { background: rgba(74,144,217,.12); border-color: var(--accent); transform: translateX(2px); }
.option-btn .letter {
    flex-shrink: 0;
    width: 26px; height: 26px;
    border-radius: 50%;
    background: var(--surface);
    border: 2px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: .78rem; font-weight: 800;
    font-family: ui-monospace, monospace;
    color: var(--accent);
    margin-top: 1px;
}
.option-btn.correct-ans { background: var(--green-lt); border-color: var(--green); }
.option-btn.correct-ans .letter { background: var(--green); border-color: var(--green); color: #fff; }
.option-btn.wrong-ans { background: var(--red-lt); border-color: var(--red); }
.option-btn.wrong-ans .letter { background: var(--red); border-color: var(--red); color: #fff; }

.feedback-row { margin-top: 18px; min-height: 36px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.feedback-msg { font-size: .9rem; font-weight: 700; padding: 7px 14px; border-radius: 8px; display: none; }
.feedback-msg.correct { background: var(--green-lt); color: var(--green); display: block; }
.feedback-msg.wrong   { background: var(--red-lt);   color: var(--red);   display: block; }
.feedback-msg.skipped { background: var(--amber-lt); color: var(--amber); display: block; }

.study-hint {
    font-size: .82rem; color: var(--muted); margin-top: 12px;
    padding: 10px 14px; background: rgba(74,144,217,.06); border-radius: 8px; display: none;
}
.study-hint.visible { display: block; }

.action-row { display: flex; gap: 10px; margin-top: 20px; }
.btn-skip {
    flex: 1; background: rgba(74,144,217,.06); color: var(--muted); border: 2px solid var(--border);
    padding: 13px 16px; border-radius: 10px; font-size: .9rem; font-weight: 700; cursor: pointer;
}
.btn-next {
    flex: 1; background: var(--accent); color: #fff; border: none;
    padding: 13px 16px; border-radius: 10px; font-size: .9rem; font-weight: 700; cursor: pointer; display: none;
}
.btn-next:hover { background: var(--accent-dk); }

#result-screen { width: 100%; max-width: 680px; display: none; margin: 0 auto; }
.result-card { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 36px 28px; text-align: center; }
.result-score { font-size: 3rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 6px; }
.result-score-label { font-size: .85rem; color: var(--muted); margin-bottom: 28px; }
.result-bars { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; text-align: left; }
.bar-row { display: flex; flex-direction: column; gap: 4px; }
.bar-label { display: flex; justify-content: space-between; font-size: .82rem; font-weight: 600; }
.bar-track { height: 10px; background: rgba(74,144,217,.1); border-radius: 10px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 10px; transition: width .8s ease; width: 0%; }
.bar-fill.green { background: var(--green); }
.bar-fill.red   { background: var(--red); }
.bar-fill.amber { background: var(--amber); }

.result-detail { display: flex; justify-content: center; gap: 24px; margin-bottom: 28px; flex-wrap: wrap; }
.stat-box { background: rgba(74,144,217,.06); border-radius: 10px; padding: 14px 20px; min-width: 90px; }
.stat-box .num { font-size: 1.6rem; font-weight: 800; font-family: ui-monospace, monospace; }
.stat-box .lbl { font-size: .75rem; color: var(--muted); font-weight: 600; }
.stat-box.green .num { color: var(--green); }
.stat-box.red   .num { color: var(--red); }
.stat-box.amber .num { color: var(--amber); }

.btn-restart {
    background: var(--accent); color: #fff; border: none; border-radius: 10px;
    padding: 14px 32px; font-size: .95rem; font-weight: 700; cursor: pointer; width: 100%; transition: background .15s;
}
.btn-restart:hover { background: var(--accent-dk); }
.btn-review {
    background: var(--red); color: #fff; border: none; border-radius: 10px;
    padding: 14px 32px; font-size: .95rem; font-weight: 700; cursor: pointer; width: 100%;
    margin-bottom: 10px; transition: background .15s; display: none;
}
.btn-review:hover { background: #a5301f; }

/* ═════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═════════════════════════════════════════════════════════════════ */
@media (max-width: 540px) {
    :root { --tile-size: 140px; --gap: 10px; }
    .tile-icon { font-size: 2.2rem; }
    .topbar { padding: .6rem 1rem; }
    .meta-key { flex: 0 0 130px; }
}
@media (max-width: 480px) {
    .card-body { padding: 20px 18px 18px; }
    .question-text { font-size: .97rem; }
    .option-btn { font-size: .9rem; padding: 12px 14px; }
    .result-score { font-size: 2.4rem; }
}
@media (prefers-reduced-motion: reduce) {
    .tile, .btn { transition: none !important; }
}