/* =========================================================
   SIMULADOR PAA UCR — style.css
   ========================================================= */

/* ── Variables ─────────────────────────────────────────── */
:root {
    --blue: #2563EB;
    --blue-light: #3B82F6;
    --blue-pale: #EFF6FF;
    --blue-dark: #1D4ED8;
    --green: #10B981;
    --green-pale: #ECFDF5;
    --red: #EF4444;
    --red-pale: #FEF2F2;
    --yellow: #F59E0B;
    --yellow-pale: #FFFBEB;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-400: #94A3B8;
    --gray-600: #475569;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --white: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);
    --shadow-md: 0 4px 16px rgba(37, 99, 235, .12);
    --shadow-lg: 0 10px 40px rgba(37, 99, 235, .18);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 8px;
}

/* ── Reset base ─────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    min-height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 0;
}

/* ── Pantallas ──────────────────────────────────────────── */
.screen {
    display: none;
    width: 100%;
    max-width: 480px;
    min-height: 100dvh;
    padding-bottom: 10px;
    animation: fadeUp .35s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Tipografía ─────────────────────────────────────────── */
h1,
h2,
h3,
h4 {
    font-family: 'Nunito', sans-serif;
    font-weight: 800;
}

.section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

/* ── Colores de ícono ───────────────────────────────────── */
.icon-blue {
    color: var(--blue);
}

.icon-green {
    color: var(--green);
}

.icon-red {
    color: var(--red);
}

.icon-yellow {
    color: var(--yellow);
}

/* =========================================================
   PANTALLA INICIO
   ========================================================= */
#view-start {
    background: var(--white);
    padding: 0;
}

.start-header {
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-light) 100%);
    padding: 52px 24px 36px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-radius: 0 0 32px 32px;
}

.greeting .hi-label {
    font-size: .85rem;
    color: rgba(255, 255, 255, .75);
    font-weight: 500;
    letter-spacing: .05em;
    display: block;
    margin-bottom: 6px;
}

.hero-title {
    font-size: 1.55rem;
    color: var(--white);
    line-height: 1.25;
    max-width: 240px;
}

.avatar-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--white);
    flex-shrink: 0;
}

/* Categorías */
.categories-row {
    display: flex;
    gap: 10px;
    padding: 20px 24px 8px;
    overflow-x: auto;
    scrollbar-width: none;
}

.categories-row::-webkit-scrollbar {
    display: none;
}

.cat-btn {
    padding: 7px 18px;
    border-radius: 100px;
    border: 2px solid var(--gray-200);
    background: transparent;
    color: var(--gray-600);
    font-family: 'Outfit', sans-serif;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    white-space: nowrap;
}

.cat-btn.active,
.cat-btn:hover {
    background: var(--blue);
    border-color: var(--blue);
    color: var(--white);
}

/* Tarjeta del quiz destacado */
.quiz-card {
    margin: 14px 24px;
    background: var(--white);
    border-radius: var(--radius);
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-md);
    border: 1.5px solid var(--gray-200);
}

.quiz-card.featured {
    border-color: var(--blue);
    background: var(--blue-pale);
}

.quiz-card-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--blue-dark), var(--blue-light));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--white);
    flex-shrink: 0;
}

.quiz-card-info {
    flex: 1;
}

.quiz-card-info h3 {
    font-size: .95rem;
    color: var(--gray-800);
    margin-bottom: 5px;
}

.quiz-meta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.quiz-meta span {
    font-size: .78rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 4px;
}

.cat-display-badge {
    font-size: .75rem;
    font-weight: 700;
    color: var(--blue);
    background: rgba(37, 99, 235, .12);
    padding: 4px 10px;
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Feedback fijo debajo de opciones */
.feedback-card {
    margin: 12px 16px 0;
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-size: .875rem;
    line-height: 1.65;
    color: var(--gray-600);
    border-left: 4px solid transparent;
    display: none;
    animation: fadeUp .3s ease;
}

.feedback-card.show {
    display: block;
}

.feedback-card.correct-fb {
    background: var(--green-pale);
    border-color: var(--green);
}

.feedback-card.wrong-fb {
    background: var(--red-pale);
    border-color: var(--red);
}

.feedback-card .fb-header {
    display: flex;
    align-items: center;
    gap: 7px;
    font-weight: 700;
    margin-bottom: 8px;
    font-size: .9rem;
}

.feedback-card .fb-header.green {
    color: var(--green);
}

.feedback-card .fb-header.red {
    color: var(--red);
}

.feedback-card p {
    font-weight: 400;
    color: var(--gray-600);
    line-height: 1.7;
}

/* KaTeX override para que se vea bien en el tema */
.katex {
    font-size: 1em !important;
}

.katex-display {
    margin: 8px 0 !important;
    overflow-x: auto;
}

/* Config */
.config-section {
    padding: 8px 24px;
}

.config-card {
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 16px;
}

.config-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    border-bottom: 1px solid var(--gray-200);
}

.config-item:last-child {
    border-bottom: none;
}

.config-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .9rem;
    color: var(--gray-800);
    font-weight: 500;
}

.config-value {
    font-size: .9rem;
    font-weight: 700;
    color: var(--blue);
}

/* Quantity control */
.qty-control {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: 100px;
    padding: 4px 6px;
}

.qty-btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: var(--blue);
    color: var(--white);
    cursor: pointer;
    font-size: .8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
    flex-shrink: 0;
}

.qty-btn:hover {
    background: var(--blue-dark);
}

input[type="number"] {
    width: 44px;
    text-align: center;
    border: none;
    background: transparent;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
    outline: none;
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    display: none;
}

/* Rules card */
.rules-card {
    background: var(--blue-pale);
    border: 1.5px solid rgba(37, 99, 235, .15);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 16px;
}

.rules-card h4 {
    font-size: .9rem;
    color: var(--blue);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.rules-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.rules-card li {
    font-size: .85rem;
    color: var(--gray-600);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.rules-card li .fa-check {
    margin-top: 2px;
    flex-shrink: 0;
    font-size: .75rem;
}

/* Botón primario */
.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--blue-dark), var(--blue-light));
    color: var(--white);
    border: none;
    border-radius: 100px;
    padding: 16px 28px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all .25s;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 40px rgba(37, 99, 235, .35);
}

.btn-primary:active {
    transform: translateY(0);
}

.start-btn {
    margin: 0 24px;
    padding: 16px 24px;
    height: 17%;
    width: calc(100% - 48px);
}


/* =========================================================
   PANTALLA QUIZ
   ========================================================= */
#view-quiz {
    background: var(--gray-50);
}

.quiz-topbar {
    background: linear-gradient(135deg, var(--blue-dark), var(--blue-light));
    padding: 52px 20px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, .2);
    color: var(--white);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
    flex-shrink: 0;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, .35);
}

.icon-btn.light {
    background: var(--gray-100);
    color: var(--gray-800);
}

.icon-btn.light:hover {
    background: var(--gray-200);
}

.timer-pill,
.score-pill {
    background: rgba(255, 255, 255, .2);
    color: var(--white);
    border-radius: 100px;
    padding: 7px 16px;
    font-size: .88rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
    font-variant-numeric: tabular-nums;
}

/* Burbujas de progreso */
.progress-bubbles-wrap {
    background: linear-gradient(180deg, var(--blue-light) 0%, var(--gray-50) 100%);
    padding: 12px 20px 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.progress-bubbles-wrap::-webkit-scrollbar {
    display: none;
}

.progress-bubbles {
    display: flex;
    gap: 8px;
    min-width: max-content;
    padding-bottom: 12px;
}

.p-bubble {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .35);
    color: rgba(255, 255, 255, .9);
    font-size: .78rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all .2s;
    flex-shrink: 0;
    border: 2px solid transparent;
}

.p-bubble.current {
    background: var(--white);
    color: var(--blue);
    border-color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .15);
}

.p-bubble.answered-ok {
    background: var(--green);
    color: var(--white);
}

.p-bubble.answered-err {
    background: var(--red);
    color: var(--white);
}

.p-bubble.answered-skip {
    background: rgba(255, 255, 255, .5);
    color: var(--gray-600);
}

/* Barra de progreso lineal */
.progress-bar-outer {
    height: 4px;
    background: var(--gray-200);
    border-radius: 100px;
    margin: 0 24px 20px;
    overflow: hidden;
}

.progress-bar-inner {
    height: 100%;
    background: linear-gradient(90deg, var(--blue-dark), var(--blue-light));
    border-radius: 100px;
    transition: width .4s ease;
}

/* Tarjeta de pregunta */
.question-card {
    margin: 0 16px 16px;
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1.5px solid var(--gray-200);
}

.question-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.q-type-badge {
    font-size: .75rem;
    font-weight: 700;
    color: var(--blue);
    background: var(--blue-pale);
    padding: 5px 12px;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.q-type-badge.math {
    color: #7C3AED;
    background: #F5F3FF;
}

.q-counter {
    font-size: .8rem;
    font-weight: 600;
    color: var(--gray-400);
}

.question-text {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.65;
    color: var(--gray-800);
}

/* Opciones */
.options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 16px;
}

.option {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 14px 16px;
    cursor: pointer;
    transition: all .22s;
    user-select: none;
}

.option:hover:not(.locked) {
    border-color: var(--blue);
    background: var(--blue-pale);
    transform: translateX(3px);
}

.option-badge {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gray-100);
    border: 2px solid var(--gray-200);
    color: var(--gray-600);
    font-size: .82rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all .22s;
    font-family: 'Nunito', sans-serif;
}

.option-text {
    font-size: .92rem;
    color: var(--gray-800);
    line-height: 1.45;
    flex: 1;
}

/* Estados seleccionados */
.option.selected {
    border-color: var(--blue);
    background: var(--blue-pale);
}

.option.selected .option-badge {
    background: var(--blue);
    border-color: var(--blue);
    color: var(--white);
}

.option.correct {
    border-color: var(--green);
    background: var(--green-pale);
}

.option.correct .option-badge {
    background: var(--green);
    border-color: var(--green);
    color: var(--white);
}

.option.wrong {
    border-color: var(--red);
    background: var(--red-pale);
}

.option.wrong .option-badge {
    background: var(--red);
    border-color: var(--red);
    color: var(--white);
}

.option.locked {
    cursor: default;
}

/* Feedback explicación */
.feedback-card {
    margin: 10px 16px 0;
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-size: .875rem;
    line-height: 1.65;
    color: var(--gray-600);
    border-left: 4px solid;
    animation: fadeUp .3s ease;
    display: none;
}

.feedback-card.show {
    display: block;
}

.feedback-card.correct-fb {
    background: var(--green-pale);
    border-color: var(--green);
}

.feedback-card.wrong-fb {
    background: var(--red-pale);
    border-color: var(--red);
}

.feedback-card .fb-header {
    display: flex;
    align-items: center;
    gap: 7px;
    font-weight: 700;
    margin-bottom: 7px;
    font-size: .9rem;
}

.feedback-card .fb-header.green {
    color: var(--green);
}

.feedback-card .fb-header.red {
    color: var(--red);
}

.feedback-card p {
    font-weight: 400;
    color: var(--gray-600);
}

/* Navegación quiz */
.quiz-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 16px 8px;
}

.nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--gray-200);
    background: var(--white);
    color: var(--gray-600);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
    flex-shrink: 0;
}

.nav-btn:hover:not(:disabled) {
    border-color: var(--blue);
    color: var(--blue);
}

.nav-btn:disabled {
    opacity: .35;
    cursor: default;
}

.nav-center-btn {
    flex: 1;
    max-width: 220px;
    border-radius: 100px;
    padding: 13px 20px;
    font-size: .95rem;
}

#btn-forward {
    display: none;
}


/* =========================================================
   PANTALLA RESULTADO
   ========================================================= */
#view-result {
    background: var(--white);
}

.result-header {
    background: linear-gradient(135deg, var(--blue-dark), var(--blue-light));
    padding: 52px 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.result-header h2 {
    color: var(--white);
    font-size: 1.1rem;
}

/* Anillo de puntuación */
.score-ring-wrap {
    position: relative;
    width: 160px;
    height: 160px;
    margin: 28px auto;
}

.score-ring {
    width: 160px;
    height: 160px;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: var(--gray-200);
    stroke-width: 10;
}

.ring-fill {
    fill: none;
    stroke: var(--blue);
    stroke-width: 10;
    stroke-linecap: round;
    transition: stroke-dashoffset 1.2s cubic-bezier(.4, 0, .2, 1);
}

.score-ring-inner {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.score-pct {
    font-family: 'Nunito', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--blue);
    line-height: 1;
}

.score-label {
    font-size: .78rem;
    color: var(--gray-400);
    font-weight: 500;
    margin-top: 4px;
}

/* Stats resultado */
.result-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 20px;
    margin-bottom: 16px;
}

.res-stat-card {
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}

.res-stat-card i {
    font-size: 1.4rem;
}

.res-stat-value {
    font-family: 'Nunito', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-800);
    line-height: 1;
}

.res-stat-label {
    font-size: .72rem;
    color: var(--gray-400);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
}

/* Banner admisión */
.admission-banner {
    margin: 0 20px 20px;
    border-radius: var(--radius);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.3rem;
}

.admission-banner .fa-chart-line {
    flex-shrink: 0;
}

.admission-label {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: 2px;
}

.admission-value {
    font-family: 'Nunito', sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
}

.admission-banner.alta {
    background: var(--green-pale);
    color: var(--green);
}

.admission-banner.media {
    background: var(--yellow-pale);
    color: var(--yellow);
}

.admission-banner.baja {
    background: var(--red-pale);
    color: var(--red);
}

/* Sección de fallos */
.failures-section {
    padding: 0 20px;
}

#failures-container {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.failure-item {
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-left: 4px solid var(--red);
    border-radius: var(--radius);
    padding: 16px;
    overflow: hidden;
}

.fi-question {
    font-size: .92rem;
    font-weight: 600;
    color: var(--gray-800);
    line-height: 1.55;
    margin-bottom: 12px;
}

.fi-answers {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.fi-answer-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: .82rem;
}

.fi-badge {
    font-size: .7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 100px;
    white-space: nowrap;
    flex-shrink: 0;
    margin-top: 1px;
}

.fi-badge.err {
    background: var(--red-pale);
    color: var(--red);
}

.fi-badge.succ {
    background: var(--green-pale);
    color: var(--green);
}

.fi-answer-text {
    color: var(--gray-600);
    line-height: 1.4;
}

.fi-explanation {
    background: var(--blue-pale);
    border-radius: var(--radius-xs);
    padding: 12px 14px;
    border-left: 3px solid var(--blue);
}

.fi-explanation-title {
    font-size: .78rem;
    font-weight: 700;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.fi-explanation-body {
    font-size: .855rem;
    color: var(--gray-600);
    line-height: 1.65;
    font-weight: 400;
}

/* Pantalla perfecta */
.perfect-msg {
    text-align: center;
    padding: 32px 20px;
    background: var(--green-pale);
    border-radius: var(--radius);
    border: 2px solid rgba(16, 185, 129, .2);
}

.perfect-msg .emoji {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.perfect-msg h4 {
    font-size: 1.1rem;
    color: var(--green);
    margin-bottom: 6px;
}

.perfect-msg p {
    font-size: .88rem;
    color: var(--gray-600);
    font-weight: 400;
}

/* ── Mobile compacto (sensación de app nativa) ───────────
   Solo en celulares: reduce fuentes y elementos grandes
   para una densidad más propia de app nativa. No toca
   tablet/escritorio (esos usan min-width más arriba). */
@media (max-width: 480px) {
    .start-header {
        padding: 40px 20px 28px;
    }

    .hero-title {
        font-size: 1.3rem;
    }

    .avatar-circle {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    .categories-row {
        padding: 16px 20px 6px;
    }

    .cat-btn {
        padding: 6px 14px;
        font-size: .8rem;
    }

    .quiz-card {
        margin: 12px 20px;
        padding: 14px;
        gap: 12px;
    }

    .quiz-card-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .quiz-card-info h3 {
        font-size: .88rem;
    }

    .quiz-meta span {
        font-size: .72rem;
    }

    .cat-display-badge {
        font-size: .7rem;
        padding: 3px 8px;
    }

    .section-title {
        font-size: .92rem;
    }

    .config-section {
        padding: 6px 20px;
    }

    .config-label {
        font-size: .85rem;
        gap: 8px;
    }

    .config-value {
        font-size: .85rem;
    }

    .config-item {
        padding: 10px 16px;
    }

    .rules-card {
        padding: 12px 14px;
    }

    .rules-card h4 {
        font-size: .85rem;
    }

    .rules-card li {
        font-size: .8rem;
    }

    .btn-primary {
        padding: 14px 24px;
        font-size: .92rem;
    }

    .quiz-topbar {
        padding: 40px 16px 16px;
    }

    .timer-pill,
    .score-pill {
        font-size: .8rem;
        padding: 6px 12px;
    }

    .icon-btn {
        width: 36px;
        height: 36px;
        font-size: .9rem;
    }

    .p-bubble {
        width: 30px;
        height: 30px;
        font-size: .72rem;
    }

    .question-card {
        margin: 0 12px 12px;
        padding: 16px;
    }

    .question-text {
        font-size: .98rem;
    }

    .q-type-badge {
        font-size: .7rem;
        padding: 4px 10px;
    }

    .options-list {
        padding: 0 12px;
        gap: 8px;
    }

    .option {
        padding: 12px 14px;
        gap: 12px;
    }

    .option-badge {
        width: 32px;
        height: 32px;
        font-size: .78rem;
    }

    .option-text {
        font-size: .87rem;
    }

    .feedback-card {
        font-size: .82rem;
        padding: 12px 14px;
    }

    .nav-btn {
        width: 42px;
        height: 42px;
    }

    .nav-center-btn {
        padding: 12px 18px;
        font-size: .9rem;
    }

    .result-header {
        padding: 40px 16px 20px;
    }

    .result-header h2 {
        font-size: 1rem;
    }

    .score-ring-wrap,
    .score-ring {
        width: 130px;
        height: 130px;
    }

    .score-pct {
        font-size: 1.6rem;
    }

    .result-stats-grid {
        padding: 0 16px;
        gap: 10px;
    }

    .res-stat-card {
        padding: 12px;
    }

    .res-stat-card i {
        font-size: 1.2rem;
    }

    .res-stat-value {
        font-size: 1.25rem;
    }

    .res-stat-label {
        font-size: .68rem;
    }

    .admission-banner {
        margin: 0 16px 16px;
        padding: 14px 16px;
        font-size: 1.1rem;
    }

    .admission-value {
        font-size: 1.05rem;
    }

    .failures-section {
        padding: 0 16px;
    }

    .failure-item {
        padding: 14px;
    }

    .fi-question {
        font-size: .88rem;
    }

    .fi-answer-row {
        font-size: .78rem;
    }

    .fi-explanation-body {
        font-size: .82rem;
    }
}

/* ── Escritorio: página completa y responsive ────────────
   Mismos componentes y estilos de siempre (sin tarjeta
   flotante ni fondo degradado): el contenido se ensancha y
   se centra sobre la página, y el scroll lo maneja el
   navegador, igual que en cualquier sitio web normal. En
   mobile no cambia nada — sigue siendo scroll de página. */
@media (min-width: 500px) {
    .start-header {
        padding-top: 36px;
    }

    .quiz-topbar,
    .result-header {
        padding-top: 28px;
    }
}

@media (min-width: 860px) {
    .screen {
        max-width: 680px;
    }

    /* Evita un hueco enorme junto al avatar cuando el
       encabezado se ensancha. */
    .hero-title {
        max-width: 420px;
    }

    /* Las tarjetas de estadísticas del resultado pasan de
       2 a 4 columnas: mismo componente, mejor uso del ancho. */
    .result-stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1200px) {
    .screen {
        max-width: 820px;
    }
}

/* ── Animación del anillo ───────────────────────────────── */
@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.04);
    }
}