/* =========================================================
   QUESTIONÁRIO BIZU — PMPA MODERNO MINIMALISTA
   Camada exclusivamente visual.
   Paleta institucional inspirada em azul-marinho, vermelho
   e neutros claros, com baixo uso de sombras e sem gradientes.
   ========================================================= */

:root {
    --canvas: #F4F7FA;
    --canvas-soft: #EDF2F7;
    --panel-surface: #FFFFFF;
    --choice-hover: #F7F9FC;
    --choice-selected: #EEF3F9;

    --text-main: #172033;
    --text-muted: #5A6B7F;
    --text-accent: #0B2A4B;
    --text-on-primary: #F7FAFC;

    --navy-deep: #071A30;
    --navy-strong: #0B2747;
    --navy-mid: #163D68;
    --navy-bright: #235789;
    --brand-blue: #163D68;

    --signal: #B52135;
    --signal-soft: #C84253;

    --danger: #A52835;
    --danger-surface: #FCEDEF;
    --success: #276A4B;
    --success-surface: #EAF5EF;

    --line: #D5DEE8;
    --card-shadow: 0 8px 24px -20px rgb(7 26 48 / 46%);

    --app-background: var(--canvas);
    --surface: var(--panel-surface);
    --surface-soft: var(--canvas-soft);
    --muted-text: var(--text-muted);
    --primary-navy: var(--navy-strong);
    --primary-blue: var(--text-accent);
    --border-color: var(--line);
}

:root[data-theme="dark"] {
    --canvas: #0E1722;
    --canvas-soft: #152230;
    --panel-surface: #111D2A;
    --choice-hover: #182738;
    --choice-selected: #1B3047;

    --text-main: #EEF3F8;
    --text-muted: #A9B6C5;
    --text-accent: #A8C8E8;
    --text-on-primary: #F7FAFC;

    --navy-deep: #081522;
    --navy-strong: #102943;
    --navy-mid: #1C4268;
    --navy-bright: #2B5C8D;
    --brand-blue: #6F9BC7;

    --signal: #E26A79;
    --signal-soft: #EA8592;

    --danger: #F08A94;
    --danger-surface: #3B2026;
    --success: #6CC69A;
    --success-surface: #173529;

    --line: #2A3B4D;
    --card-shadow: 0 8px 24px -20px rgb(0 0 0 / 76%);
}

/* Fundo limpo: nada de textura, manchas ou gradientes. */
body,
:root[data-theme="dark"] body {
    background: var(--canvas);
}

.page-grain {
    display: none !important;
}

/* Campos */
:where(input, select, textarea) {
    background: var(--panel-surface);
    border-color: var(--line);
    border-radius: 7px;
}

:is(input, select, textarea):focus {
    border-color: var(--navy-bright);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--navy-bright) 14%, transparent);
}

/* Cabeçalho: sólido, discreto e institucional. */
.action-bar {
    background: var(--canvas);
    backdrop-filter: none;
}

.action-brand {
    background: var(--navy-strong);
    border-color: var(--navy-strong);
    border-radius: 8px;
    box-shadow: none;
}

.action-brand:hover,
.action-brand.active {
    color: var(--text-on-primary);
    background: var(--navy-mid);
    border-color: var(--navy-mid);
    transform: none;
}

.action-button {
    color: var(--text-muted);
    background: var(--panel-surface);
    border-color: var(--line);
    border-radius: 8px;
}

.action-button:hover,
.action-button.active {
    color: var(--navy-strong);
    background: var(--canvas-soft);
    border-color: color-mix(in srgb, var(--navy-mid) 48%, var(--line));
    transform: none;
}

.action-button.active {
    box-shadow: inset 0 -2px 0 var(--signal);
}

:root[data-theme="dark"] .action-button:hover,
:root[data-theme="dark"] .action-button.active {
    color: var(--text-main);
}

/* Botões: azul como ação principal; vermelho só em sinalização/risco. */
.ui-button {
    border-radius: 7px;
    transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.ui-button:not(:disabled):hover {
    color: var(--text-on-primary);
    background: var(--navy-mid);
    border-color: var(--navy-mid);
}

.ui-button.main-action {
    color: var(--text-on-primary);
    background: var(--navy-strong);
    border-color: var(--navy-strong);
}

.ui-button.main-action:not(:disabled):hover {
    background: var(--navy-mid);
    border-color: var(--navy-mid);
}

.ui-button.quiet-action:not(:disabled):hover {
    color: var(--navy-strong);
    background: var(--canvas-soft);
    border-color: var(--navy-mid);
}

:root[data-theme="dark"] .ui-button.quiet-action:not(:disabled):hover {
    color: var(--text-main);
}

/* Cartões: pouco relevo e borda suave. */
.panel,
.question-card,
.result-card,
.login-card,
.admin-summary-card,
.admin-question-card,
.admin-content-group,
.admin-create-box,
.admin-quick-panel,
.admin-toolbar-panel,
.admin-list-panel,
.admin-backup-panel,
.report-modal,
.admin-modal-card {
    border-color: var(--line);
    border-radius: 9px;
    box-shadow: var(--card-shadow);
}

.panel::before,
.question-card::before {
    top: 22px;
    bottom: 22px;
    width: 2px;
    background: var(--signal);
    border-radius: 0 2px 2px 0;
}

/* Login */
.login-shell {
    background: var(--canvas);
}

.login-card::before {
    display: none;
}

.brand-mark {
    background: var(--navy-strong);
    border-radius: 8px;
    box-shadow: none;
}

.auth-tab,
.admin-tab,
.admin-tabs-v2 .admin-tab {
    border-radius: 7px;
}

.auth-tab.active,
.admin-tab.active,
.admin-tabs-v2 .admin-tab.active {
    color: var(--text-on-primary);
    background: var(--navy-strong);
    border-color: var(--navy-strong);
    box-shadow: inset 0 -2px 0 var(--signal);
}

/* Área principal */
.hero {
    color: var(--text-on-primary);
    background: var(--navy-strong);
    border-color: var(--navy-strong);
    border-radius: 9px;
    box-shadow: var(--card-shadow);
}

.hero::before {
    display: none;
}

.hero h1 {
    color: #FFFFFF;
}

.hero p {
    color: #E6EDF5;
    opacity: 1;
}

.user-card {
    background: rgb(255 255 255 / 7%);
    border-color: rgb(255 255 255 / 18%);
    border-radius: 7px;
}

.section-title h2 {
    color: var(--text-accent);
}

.section-kicker {
    color: var(--signal);
}

/* Questionário */
.progress {
    background: var(--canvas-soft);
    border-color: var(--line);
    border-radius: 999px;
}

.progress span {
    background: var(--signal);
}

.question-meta {
    color: var(--text-accent);
}

.answer-choice {
    background: var(--panel-surface);
    border-color: var(--line);
    border-radius: 8px;
}

.answer-choice:not(:disabled):hover {
    background: var(--choice-hover);
    border-color: var(--navy-mid);
}

.answer-choice .answer-key {
    color: var(--navy-mid);
    border-color: color-mix(in srgb, var(--navy-mid) 62%, var(--line));
    border-radius: 6px;
}

.answer-choice.is-selected {
    background: var(--choice-selected);
    border-color: var(--navy-mid);
    box-shadow: inset 3px 0 0 var(--signal);
}

.answer-explanation {
    background: var(--canvas-soft);
    border-inline-start-color: var(--navy-mid);
}

/* Perfil, Histórico e Ranking */
.profile-dashboard,
.my-ranking-card {
    background: var(--navy-strong);
    border-color: var(--navy-strong);
    box-shadow: var(--card-shadow);
}

.profile-dashboard::before {
    opacity: .08;
}

.profile-metric,
.ranking-card,
.history-card,
.history-answer-card,
.report-stat,
.history-stat-v5 {
    border-color: var(--line);
    box-shadow: none;
}

.report-modal-header {
    border-bottom-color: var(--line);
}

.ranking-card.is-me,
.ranking-row.is-me {
    box-shadow: inset 3px 0 0 var(--signal);
    border-color: color-mix(in srgb, var(--signal) 50%, var(--line));
}

/* Painel administrativo */
.admin-title-row {
    border-bottom-color: var(--line);
}

.admin-summary-card {
    background: var(--panel-surface);
    box-shadow: none;
}

.admin-summary-card strong {
    color: var(--navy-strong);
}

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

.admin-user-card,
.admin-user-card-v2,
.admin-content-row,
.admin-question-card {
    background: var(--panel-surface);
    border-color: var(--line);
    box-shadow: none;
}

.admin-user-card.is-admin {
    border-color: color-mix(in srgb, var(--navy-mid) 55%, var(--line));
}

.admin-protected-badge {
    color: var(--navy-mid);
    border-color: color-mix(in srgb, var(--navy-mid) 55%, var(--line));
    background: var(--canvas-soft);
}

:root[data-theme="dark"] .admin-protected-badge {
    color: var(--text-accent);
}

.admin-action-menu > summary {
    border-radius: 7px;
}

.admin-action-menu-popover {
    border-radius: 8px;
    box-shadow: 0 12px 30px -22px rgb(7 26 48 / 60%);
}

.admin-create-box > summary::before {
    border-radius: 6px;
}

.admin-content-group,
.admin-create-box,
.admin-quick-panel,
.admin-toolbar-panel,
.admin-list-panel,
.admin-backup-panel {
    background: var(--panel-surface);
    box-shadow: none;
}

.admin-status-pill.status-pendente {
    color: #8A5A00;
    border-color: #D7B979;
    background: #FFF8E8;
}

:root[data-theme="dark"] .admin-status-pill.status-pendente {
    color: #F1CF82;
    border-color: #705A2C;
    background: #2E281B;
}

.danger-zone-v2 {
    background: color-mix(in srgb, var(--danger-surface) 62%, var(--panel-surface));
    border-width: 1px;
}

.danger-action-card {
    border-radius: 8px;
    box-shadow: none;
}

/* Toast e modais */
.toast {
    background: var(--navy-strong);
    border-color: var(--navy-mid);
    border-radius: 8px;
    box-shadow: 0 10px 28px -20px rgb(7 26 48 / 65%);
}

.admin-modal,
.report-overlay {
    background: rgb(7 26 48 / 55%);
}

/* Retira efeitos decorativos pesados remanescentes. */
.login-stamp,
.heritage-stamp {
    box-shadow: none;
}

@media (max-width: 720px) {
    .panel,
    .question-card,
    .result-card,
    .login-card {
        border-radius: 8px;
    }

    .action-brand,
    .action-button {
        border-radius: 7px;
    }
}

/* =========================================================
   v4.3 · VIP, revisão inteligente e insígnias do ranking
   ========================================================= */
.study-review-filter {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 14px;
    padding: 12px 14px;
    border: 1px solid var(--border-subtle, rgba(17, 44, 74, .14));
    border-radius: 14px;
    background: var(--surface-soft, rgba(255, 255, 255, .55));
    cursor: pointer;
}

.study-review-filter input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: #163d68;
}

.study-review-filter span {
    line-height: 1.45;
    color: var(--text-secondary, #4d5b6d);
}

.study-review-filter strong {
    color: var(--text-primary, #172033);
}

.vip-insignia {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    min-height: 20px;
    padding: 2px 7px;
    margin-left: 4px;
    border: 1px solid rgba(151, 108, 16, .35);
    border-radius: 999px;
    background: linear-gradient(135deg, #fff8dc, #f0d37b);
    color: #67470b;
    font-family: system-ui, sans-serif;
    font-size: 10px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: .04em;
    vertical-align: middle;
    white-space: nowrap;
}

html[data-theme="dark"] .vip-insignia {
    background: linear-gradient(135deg, #3a3117, #6b541c);
    border-color: rgba(240, 211, 123, .42);
    color: #ffe69a;
}

.admin-user-card.is-vip {
    box-shadow: inset 3px 0 0 #b8912e;
}

.admin-vip-toggle {
    display: flex !important;
    align-items: flex-start;
    gap: 10px;
    min-height: 58px;
    padding: 10px 12px;
    border: 1px solid rgba(151, 108, 16, .22);
    border-radius: 12px;
    background: rgba(240, 211, 123, .10);
}

.admin-vip-toggle input {
    width: 18px;
    height: 18px;
    margin-top: 3px;
    accent-color: #9a7218;
}

.admin-vip-toggle span {
    display: grid;
    gap: 3px;
}

.admin-vip-toggle small {
    font-weight: 400;
    color: var(--text-secondary, #667487);
}

.ranking-medal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    font-size: 17px;
    line-height: 1;
    vertical-align: middle;
}

.podium-position .ranking-medal {
    width: 25px;
    height: 25px;
    font-size: 20px;
}

.history-archived-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    margin-left: 5px;
    border-radius: 999px;
    border: 1px solid var(--border-subtle, rgba(17, 44, 74, .14));
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
    opacity: .78;
}

@media (max-width: 720px) {
    .study-review-filter {
        margin-top: 10px;
    }

    .vip-insignia {
        font-size: 9px;
        padding-inline: 6px;
    }
}

/* =========================================================
   v4.4 · Insígnias visuais de identidade
   Premium = visual apenas; não concede nenhum privilégio.
   ========================================================= */
.account-insignia {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    min-height: 20px;
    padding: 2px 7px;
    margin-left: 4px;
    border-radius: 999px;
    font-family: system-ui, sans-serif;
    font-size: 10px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: .04em;
    vertical-align: middle;
    white-space: nowrap;
}

.premium-insignia {
    border: 1px solid rgba(34, 81, 128, .28);
    background: linear-gradient(135deg, #f6f9fc, #dbe7f2);
    color: #183b61;
}

.plus-insignia {
    border: 1px solid rgba(82, 57, 146, .32);
    background: linear-gradient(135deg, #f1edfb, #d9cdf3);
    color: #422b82;
}

.admin-insignia {
    border: 1px solid rgba(33, 81, 68, .34);
    background: linear-gradient(135deg, #edf8f3, #cfe9dc);
    color: #1d5946;
}

.supreme-insignia {
    border: 1px solid rgba(118, 28, 45, .38);
    background: linear-gradient(135deg, #fff0f3, #edbdc7);
    color: #781c2f;
    box-shadow: 0 0 0 1px rgba(118, 28, 45, .05) inset;
}

/* Mantém VIP como categoria de destaque, agora usando a mesma base estrutural. */
.account-insignia.vip-insignia {
    border: 1px solid rgba(151, 108, 16, .35);
    background: linear-gradient(135deg, #fff8dc, #f0d37b);
    color: #67470b;
}

.contributor-insignia {
    border: 0;
    background: transparent;
    box-shadow: none;
    padding: 0;
    width: 24px;
    min-width: 24px;
    height: 24px;
    min-height: 0;
    line-height: 0;
    overflow: visible;
}
.contributor-insignia img {
    display: block;
    width: 24px;
    height: 24px;
    border-radius: 0;
    object-fit: contain;
    filter: drop-shadow(0 2px 3px rgba(92, 57, 5, .28));
}

html[data-theme="dark"] .premium-insignia {
    border-color: rgba(126, 166, 207, .36);
    background: linear-gradient(135deg, #17283a, #24425f);
    color: #c9e1f5;
}

html[data-theme="dark"] .plus-insignia {
    border-color: rgba(183, 157, 241, .4);
    background: linear-gradient(135deg, #29213e, #493776);
    color: #e2d6ff;
}

html[data-theme="dark"] .admin-insignia {
    border-color: rgba(113, 190, 158, .35);
    background: linear-gradient(135deg, #183128, #245442);
    color: #b8ead5;
}

html[data-theme="dark"] .supreme-insignia {
    border-color: rgba(226, 106, 121, .48);
    background: linear-gradient(135deg, #381a22, #682637);
    color: #ffc5cf;
}

html[data-theme="dark"] .account-insignia.vip-insignia {
    background: linear-gradient(135deg, #3a3117, #6b541c);
    border-color: rgba(240, 211, 123, .42);
    color: #ffe69a;
}

html[data-theme="dark"] .contributor-insignia {
    border: 0;
    background: transparent;
    box-shadow: none;
}

@media (max-width:680px) {
    .contributor-insignia { width:22px; min-width:22px; height:22px; min-height:0; padding:0; }
    .contributor-insignia img { width:22px; height:22px; }
}

.admin-user-card:has(.supreme-insignia) {
    box-shadow: inset 3px 0 0 #9b2942;
}

.admin-user-card:has(.admin-insignia) {
    border-left-color: rgba(29, 89, 70, .46);
}

@media (max-width: 720px) {
    .account-insignia {
        min-height: 18px;
        padding-inline: 6px;
        font-size: 9px;
    }
}

/* =========================================================
   v4.4.1 · Correções de contraste e layout do ranking
   ========================================================= */
.study-review-filter span {
    color: var(--text-muted);
}

.study-review-filter strong {
    color: var(--text-main);
}

:root[data-theme="dark"] .study-review-filter {
    background: var(--panel-surface);
    border-color: var(--line);
}

:root[data-theme="dark"] .study-review-filter span {
    color: var(--text-muted);
}

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

/* No pódio a colocação contém medalha + número; por isso deve ser
   uma pequena cápsula, e não o círculo usado na lista geral. */
.podium-position {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: auto;
    min-width: 62px;
    height: 30px;
    padding: 0 8px;
    border-radius: 999px;
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

.podium-position .ranking-medal {
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
    font-size: 16px;
}

.podium-card .ranking-avatar {
    position: relative;
    z-index: 0;
    margin-top: 4px;
}

/* v4.38 · a coroa ocupa, somente no card do líder do Top 3,
   o espaço conjunto da antiga posição e do avatar circular. */
.podium-champion-crown {
    position: relative;
    isolation: isolate;
    display: grid;
    place-items: center;
    width: 104px;
    height: 88px;
    margin: -4px auto 2px;
    filter: drop-shadow(0 7px 8px rgba(91, 54, 8, .26));
}

.podium-champion-crown::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 12% 4% 5%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 229, 113, .78) 0%, rgba(241, 184, 44, .32) 44%, transparent 72%);
    filter: blur(8px);
    animation: podium-crown-aura 2.8s ease-in-out infinite;
}

.podium-champion-crown img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(1.08) saturate(1.12) drop-shadow(0 0 3px rgba(255, 236, 144, .7));
    animation: podium-crown-lustre 3.4s ease-in-out infinite;
}

.podium-1:hover .podium-champion-crown {
    transform: translateY(-2px) scale(1.025);
    transition: transform .18s ease;
}

@keyframes podium-crown-aura {
    0%, 100% { opacity: .48; transform: scale(.9); }
    50% { opacity: .92; transform: scale(1.08); }
}

@keyframes podium-crown-lustre {
    0%, 100% { filter: brightness(1.04) saturate(1.08) drop-shadow(0 0 2px rgba(255, 226, 104, .48)); }
    50% { filter: brightness(1.22) saturate(1.2) drop-shadow(0 0 7px rgba(255, 218, 73, .88)); }
}

@media (prefers-reduced-motion: reduce) {
    .podium-champion-crown::before,
    .podium-champion-crown img {
        animation: none;
    }
}

/* Na lista, número e avatar ficam sempre em células visuais distintas. */
.ranking-card-main > .ranking-position,
.ranking-card-main > .ranking-avatar {
    flex: 0 0 auto;
}

@media (max-width: 720px) {
    .podium-position {
        min-width: 58px;
        height: 28px;
        padding-inline: 7px;
        font-size: 10px;
    }

    .podium-position .ranking-medal {
        width: 18px;
        height: 18px;
        flex-basis: 18px;
        font-size: 15px;
    }

    .podium-champion-crown {
        width: 96px;
        height: 81px;
        margin-top: -3px;
    }
}


/* =========================================================
   v4.5 · Insígnias com contraste + eliminação e confirmação
   ========================================================= */

/* Contraste reforçado das insígnias no modo claro, sobretudo no cartão de perfil. */
:root:not([data-theme="dark"]) .premium-insignia,
:root[data-theme="light"] .premium-insignia {
    border-color: #315f8e;
    background: linear-gradient(135deg, #dceaf8, #b9d2eb);
    color: #0b3158;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .75) inset, 0 1px 3px rgba(7, 26, 48, .16);
}

:root:not([data-theme="dark"]) .plus-insignia,
:root[data-theme="light"] .plus-insignia {
    border-color: #6c4cac;
    background: linear-gradient(135deg, #eee7ff, #cab9ef);
    color: #38216f;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .75) inset, 0 1px 3px rgba(49, 30, 92, .16);
}

:root:not([data-theme="dark"]) .admin-insignia,
:root[data-theme="light"] .admin-insignia {
    border-color: #2e7058;
    background: linear-gradient(135deg, #d7eee5, #acd9c4);
    color: #134b38;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .75) inset, 0 1px 3px rgba(13, 59, 44, .15);
}

:root:not([data-theme="dark"]) .supreme-insignia,
:root[data-theme="light"] .supreme-insignia {
    border-color: #9b2942;
    background: linear-gradient(135deg, #f6d9df, #e5a8b5);
    color: #651426;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .72) inset, 0 1px 4px rgba(101, 20, 38, .18);
}

:root:not([data-theme="dark"]) .account-insignia.vip-insignia,
:root[data-theme="light"] .account-insignia.vip-insignia {
    border-color: #96700f;
    background: linear-gradient(135deg, #ffefb5, #e5c354);
    color: #533a00;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .7) inset, 0 1px 4px rgba(83, 58, 0, .18);
}

.profile-dashboard .account-insignia {
    font-weight: 900;
    border-width: 1px;
}

.answer-tools-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 4px 0 12px;
    color: var(--text-muted);
    font: 600 11px/1.45 var(--type-ui);
}

.answer-tools-hint > span {
    color: var(--text-accent);
    font-size: 15px;
}

.answer-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px;
    gap: 8px;
    align-items: stretch;
}

.answer-row .answer-choice {
    min-width: 0;
}

.answer-eliminate {
    display: grid;
    place-items: center;
    min-width: 42px;
    min-height: 48px;
    padding: 0;
    color: var(--text-muted);
    background: var(--panel-surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 17px;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease, color .15s ease, transform .15s ease, opacity .15s ease;
}

.answer-eliminate:not(:disabled):hover {
    color: var(--danger);
    border-color: var(--danger);
    background: var(--danger-surface);
    transform: translateY(-1px);
}

.answer-eliminate.is-active {
    color: #fff;
    border-color: var(--danger);
    background: var(--danger);
}

.answer-eliminate:disabled {
    cursor: default;
    opacity: .5;
    transform: none;
}

.answer-row.is-eliminated .answer-choice {
    opacity: .5;
    text-decoration: line-through;
    text-decoration-thickness: 1.5px;
    text-decoration-color: var(--danger);
}

.answer-row.is-eliminated .answer-key {
    opacity: .72;
}

.confirm-answer-action {
    min-width: 190px;
    margin-inline: auto;
    color: #fff;
    background: var(--navy-mid);
    border: 1px solid var(--navy-mid);
    font-weight: 800;
}

.confirm-answer-action:not(:disabled):hover {
    background: var(--navy-bright);
    border-color: var(--navy-bright);
}

.confirm-answer-action:disabled {
    color: var(--text-muted);
    background: var(--canvas-soft);
    border-color: var(--line);
    opacity: .72;
}

/* A seleção é apenas provisória; o gabarito só aparece depois da confirmação. */
.answer-choice.is-selected:not(.is-correct):not(.is-wrong) {
    box-shadow: inset 4px 0 0 var(--signal);
}

@media (max-width: 520px) {
    .answer-tools-hint {
        align-items: flex-start;
        font-size: 10px;
    }

    .answer-row {
        grid-template-columns: minmax(0, 1fr) 38px;
        gap: 6px;
    }

    .answer-eliminate {
        min-width: 38px;
        min-height: 46px;
        font-size: 16px;
    }

    .quiz-controls {
        flex-direction: column;
    }

    #confirmAnswerBtn {
        order: 1;
        width: 100%;
        min-width: 0;
    }

    #nextBtn {
        order: 2;
        width: 100%;
    }

    #skipBtn {
        order: 3;
        width: 100%;
    }

    #previousSkippedBtn {
        order: 4;
        width: 100%;
    }
}


/* =========================================================
   v4.5.1 · Seleção verde + retorno visual do gabarito
   ========================================================= */

/* Antes de confirmar, a alternativa escolhida recebe destaque verde.
   Ainda não significa acerto: é apenas a seleção provisória do usuário. */
.answer-choice.is-selected:not(.is-correct):not(.is-wrong):not(.is-incorrect) {
    color: var(--text-main);
    border-color: var(--success);
    background: var(--success-surface);
    box-shadow: inset 4px 0 0 var(--success);
}

.answer-choice.is-selected:not(.is-correct):not(.is-wrong):not(.is-incorrect) .answer-key {
    color: #fff;
    border-color: var(--success);
    background: var(--success);
}

/* Resultado textual mostrado imediatamente antes da resolução comentada. */
.answer-feedback {
    display: flex;
    align-items: center;
    min-height: 42px;
    margin: -2px 0 14px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 7px;
    font: 800 13px/1.4 var(--type-ui);
}

.answer-feedback.is-correct {
    color: var(--success);
    border-color: var(--success);
    background: var(--success-surface);
}

.answer-feedback.is-wrong {
    color: var(--danger);
    border-color: var(--danger);
    background: var(--danger-surface);
}

@media (max-width: 520px) {
    .answer-feedback {
        font-size: 12px;
    }
}
/* Seletores visuais de disciplina, capítulos e quantidade. */
.discipline-filter,
.chapter-filter,
.limit-filter {
    display: grid;
    align-content: start;
    gap: 7px;
    min-width: 0;
    margin-block: 0;
    padding: 0;
    border: 0;
    color: var(--text-muted);
    font: 600 11.5px var(--type-ui);
    letter-spacing: .03em;
    text-transform: uppercase;
}
.limit-filter legend {
    margin: 0 0 7px;
    padding: 0;
}
.limit-filter { gap: 0; }
.discipline-select,
.chapter-select { position: relative; min-width: 0; }
.discipline-select summary,
.chapter-select summary {
    display: flex;
    align-items: center;
    min-height: 45px;
    cursor: pointer;
    padding: 8px 34px 8px 11px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--canvas);
    color: var(--text-main);
    font: 400 15px var(--type-reading);
    text-transform: none;
    overflow-wrap: anywhere;
}
.discipline-select summary {
    gap: 9px;
    padding-block: 6px;
}
.discipline-select summary img {
    width: 30px;
    height: 30px;
    flex: 0 0 30px;
}
.discipline-select summary span {
    display: grid;
    min-width: 0;
}
.discipline-select summary strong {
    overflow: hidden;
    color: var(--text-main);
    font: 700 13px/1.25 var(--type-ui);
    text-overflow: ellipsis;
    white-space: nowrap;
}
.discipline-select summary small {
    margin-top: 2px;
    color: var(--text-muted);
    font: 500 9px/1.2 var(--type-ui);
}
.discipline-select summary::marker,
.chapter-select summary::marker { color: var(--text-muted); }
.discipline-options,
.chapter-options {
    position: absolute;
    z-index: 30;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    overflow: hidden;
    background: var(--canvas);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 8px 20px rgb(0 0 0 / 15%);
}
.discipline-search-wrap { padding: 7px; border-bottom: 1px solid var(--line); }
.discipline-search-wrap input {
    width: 100%;
    min-height: 36px;
    padding: 7px 9px;
    color: var(--text-main);
    background: var(--panel-surface);
    border: 1px solid var(--line);
    border-radius: 6px;
    font: 500 12px var(--type-ui);
}
.discipline-option-list,
.chapter-option-list {
    max-height: 260px;
    padding: 5px;
    overflow-y: auto;
    overscroll-behavior: contain;
}
.discipline-option-list button {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr) 20px;
    align-items: center;
    gap: 8px;
    width: 100%;
    min-height: 48px;
    padding: 6px 8px;
    color: var(--text-main);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    text-align: left;
}
.discipline-option-list button:hover,
.discipline-option-list button.is-selected {
    background: color-mix(in srgb, var(--navy-mid) 9%, var(--canvas-soft));
    border-color: color-mix(in srgb, var(--navy-mid) 30%, var(--line));
}
.discipline-option-list img { width: 30px; height: 30px; }
.discipline-option-list span { display: grid; min-width: 0; }
.discipline-option-list strong {
    overflow: hidden;
    font: 700 12px/1.3 var(--type-ui);
    text-overflow: ellipsis;
    white-space: nowrap;
}
.discipline-option-list small { color: var(--text-muted); font: 500 9px var(--type-ui); }
.discipline-option-list i { color: var(--signal); font-style: normal; opacity: 0; }
.discipline-option-list button.is-selected i { opacity: 1; }
.chapter-toolbar {
    display: flex;
    justify-content: flex-end;
    gap: 5px;
    padding: 6px 7px;
    background: var(--canvas-soft);
    border-bottom: 1px solid var(--line);
}
.chapter-toolbar button {
    padding: 5px 8px;
    color: var(--text-accent);
    background: var(--panel-surface);
    border: 1px solid var(--line);
    border-radius: 5px;
    cursor: pointer;
    font: 700 9px var(--type-ui);
}
.chapter-option-list label {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 44px;
    margin: 0;
    padding: 7px 8px;
    cursor: pointer;
    color: var(--text-main);
    border: 1px solid transparent;
    border-radius: 6px;
    text-transform: none;
    font-size: 13px;
    overflow-wrap: anywhere;
}
.chapter-option-list label:hover {
    background: var(--canvas-soft);
    border-color: var(--line);
}
.chapter-options input[type="checkbox"] {
    appearance: none;
    flex: 0 0 18px;
    width: 18px;
    height: 18px;
    padding: 0;
    margin: 0;
    border: 1px solid var(--text-muted);
    border-radius: 50%;
    background: var(--canvas);
}
.chapter-options input:checked {
    background: radial-gradient(circle, var(--signal) 0 4px, var(--canvas) 5px);
    border-color: var(--signal);
}
.chapter-number {
    display: grid;
    place-items: center;
    width: 26px;
    height: 24px;
    flex: 0 0 26px;
    color: var(--text-accent);
    background: var(--canvas-soft);
    border: 1px solid var(--line);
    border-radius: 5px;
    font: 700 9px var(--type-ui);
}
.chapter-all-row { font-weight: 700; }
.chapter-select.has-empty-selection summary {
    color: var(--danger);
    border-color: color-mix(in srgb, var(--danger) 55%, var(--line));
}
.discipline-empty {
    margin: 16px 8px;
    color: var(--text-muted);
    font: 500 11px var(--type-ui);
    text-align: center;
    text-transform: none;
}
.limit-segments {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
    min-height: 45px;
    padding: 3px;
    background: var(--canvas-soft);
    border: 1px solid var(--line);
    border-radius: 7px;
}
.limit-segments label { margin: 0; cursor: pointer; }
.limit-segments input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}
.limit-segments span {
    display: grid;
    place-items: center;
    min-height: 17px;
    padding: 2px 5px;
    color: var(--text-muted);
    border: 1px solid transparent;
    border-radius: 4px;
    font: 700 9px var(--type-ui);
    text-transform: none;
}
.limit-segments input:checked + span {
    color: #fff;
    background: var(--navy-strong);
    border-color: var(--navy-strong);
    box-shadow: 0 2px 6px rgb(4 20 48 / 18%);
}
.limit-segments input:focus-visible + span {
    outline: 2px solid var(--signal);
    outline-offset: 1px;
}
.discipline-select summary:focus-visible,
.chapter-select summary:focus-visible,
.chapter-options input:focus-visible {
    outline: 2px solid var(--signal);
    outline-offset: 2px;
}