/* ══════════════════════════════════════════════════════════════
   Saber Pro — Quiz Show Moderno
   Estilo: Cartoon Educativo, Casual Mobile/Web, Light/Dark Mode
   ══════════════════════════════════════════════════════════════ */

/* ─── Variables de Tema ─── */
:root {
    /* Paleta Quiz Show Cartoon */
    --sp-primary: #6C63FF; /* Morado/Índigo vibrante */
    --sp-secondary: #FF6B6B; /* Rojo coral */
    --sp-tertiary: #4ECDC4; /* Teal / Turquesa */
    --sp-warning: #FFE66D; /* Amarillo sol */
    --sp-success: #A8E6CF; /* Verde menta */
    --sp-orange: #FF8A5C;
    
    --sp-gold: #FFD700;
    --sp-silver: #C0C0C0;
    --sp-bronze: #CD7F32;

    /* Base Colors (Light Mode) */
    --sp-bg: #F4F7F6;
    --sp-surface: #FFFFFF;
    --sp-surface-hover: #F0F4F8;
    --sp-text: #2D3748;
    --sp-text-muted: #718096;
    --sp-border: #E2E8F0;
    --sp-shadow: rgba(0, 0, 0, 0.08);
    --sp-shadow-hover: rgba(0, 0, 0, 0.15);
    
    --sp-card-radius: 20px;
    --sp-btn-radius: 99px; /* Pill shape for cartoon feel */
    --sp-font-main: 'Outfit', sans-serif;
    --sp-font-mono: 'JetBrains Mono', monospace;
    
    --sp-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Override visual: quiz show / kahoot feel */
.quiz-topbar {
    gap: 12px;
    padding: 12px 18px;
    background: linear-gradient(90deg, #003366 0%, #1f4d86 65%, #ad3333 100%);
    color: #fff;
    border-bottom: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}
.quiz-topbar--simulacro {
    background: linear-gradient(90deg, #1f1f32 0%, #003366 45%, #ad3333 100%);
}
.quiz-topbar-back {
    color: #003366;
    background: #fff;
    border: none;
    box-shadow: 0 5px 0 rgba(0, 0, 0, 0.14);
}
.quiz-topbar-back:hover {
    background: #f8fbff;
}
.quiz-topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.quiz-icon-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: none;
    border-radius: 999px;
    font-weight: 800;
    color: #003366;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 5px 0 rgba(0, 0, 0, 0.14);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.quiz-icon-btn:hover {
    transform: translateY(-2px);
}
.quiz-icon-btn--accent {
    color: #fff;
    background: linear-gradient(135deg, #ad3333, #f59e0b);
}
.quiz-icon-btn--muted {
    opacity: 0.78;
}
.quiz-topbar-stat {
    color: #fff;
}

.sp-avatar {
    border-radius: 18px;
    border-width: 4px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.14);
}

#quiz-root {
    padding: 18px 14px 26px;
}

.quiz-stage {
    display: grid;
    gap: 20px;
    align-items: start;
}
.quiz-stage--presentation {
    grid-template-columns: minmax(0, 1.75fr) minmax(280px, 0.7fr);
}
.quiz-main {
    min-width: 0;
}
.quiz-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.96) 0%, rgba(255,255,255,1) 100%);
    border-radius: 28px;
    box-shadow: 0 18px 36px rgba(0, 51, 102, 0.12);
    border: 1px solid rgba(0, 51, 102, 0.08);
    padding: 18px;
}
.quiz-card--simulacro {
    background:
        radial-gradient(circle at top right, rgba(173,51,51,0.08), transparent 20%),
        radial-gradient(circle at top left, rgba(0,51,102,0.08), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}
.quiz-progress-bar {
    height: 10px;
    border-radius: 999px;
}
.quiz-progress-fill {
    background: linear-gradient(90deg, #003366 0%, #1368CE 35%, #ad3333 100%);
}
.quiz-area-badge {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}
.quiz-stem-wrap {
    display: grid;
    gap: 14px;
    margin-bottom: 16px;
}
.quiz-stem {
    font-size: clamp(1.05rem, 1.8vw, 1.85rem);
    border-radius: 24px;
    border: 2px solid rgba(0, 51, 102, 0.08);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.5);
}
.quiz-media {
    margin: 0;
    overflow: hidden;
    border-radius: 22px;
    background: #fff;
    border: 2px solid rgba(0, 51, 102, 0.08);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.08);
}
.quiz-media-image {
    width: 100%;
    max-height: 340px;
    object-fit: cover;
    display: block;
}
.quiz-media-caption {
    padding: 12px 16px;
    font-size: 0.9rem;
    color: var(--sp-text-muted);
    background: rgba(218, 218, 218, 0.28);
}

.quiz-options {
    gap: 14px;
}
.quiz-options--presentation {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    display: grid;
}
.quiz-option {
    position: relative;
    min-height: 96px;
    padding: 22px 18px 18px 74px;
    border: none;
    border-radius: 24px;
    color: #fff;
    box-shadow: 0 10px 0 rgba(0, 0, 0, 0.14);
    transform-origin: center;
    overflow: hidden;
}
.quiz-option::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.08), transparent 45%);
    pointer-events: none;
}
.quiz-option:hover:not(.quiz-option--disabled) {
    transform: translateY(-4px) scale(1.01);
    border-color: transparent;
}
.quiz-option:active:not(.quiz-option--disabled) {
    transform: translateY(2px);
}
.quiz-option--variant-0 { background: linear-gradient(135deg, #E33B2F, #ff6b57); }
.quiz-option--variant-1 { background: linear-gradient(135deg, #1368CE, #3C8BFF); }
.quiz-option--variant-2 { background: linear-gradient(135deg, #D89E00, #F6C647); color: #2f2200; }
.quiz-option--variant-3 { background: linear-gradient(135deg, #26890C, #41BF2A); }
.quiz-option--variant-2 .quiz-option-text,
.quiz-option--variant-2 .quiz-option-letter,
.quiz-option--variant-2 .quiz-option-symbol {
    color: #2f2200;
}
.quiz-option-symbol {
    position: absolute;
    top: 16px;
    left: 16px;
    font-size: 1.4rem;
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.15);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    color: #fff;
}
.quiz-option-symbol--triangle { font-size: 1.6rem; }
.quiz-option-symbol--circle { font-size: 1.6rem; }
.quiz-option-symbol--square { font-size: 1.8rem; }
.quiz-option-symbol--diamond { font-size: 1.8rem; }
.quiz-option-text {
    display: block;
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.01em;
    padding-top: 4px;
}

.quiz-option--selected {
    outline: 4px solid rgba(255,255,255,0.7);
}
.quiz-option--correct {
    background: linear-gradient(135deg, #1faa59, #7fe36d) !important;
    color: #fff !important;
    box-shadow: 0 10px 0 rgba(13, 103, 53, 0.28) !important;
}
.quiz-option--incorrect {
    background: linear-gradient(135deg, #ad3333, #d84f4f) !important;
    color: #fff !important;
    box-shadow: 0 10px 0 rgba(103, 13, 13, 0.26) !important;
}
.quiz-option--correct .quiz-option-letter,
.quiz-option--incorrect .quiz-option-letter {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.24);
    color: #fff;
}
.quiz-option--muted,
.quiz-option--removed {
    background: linear-gradient(135deg, #d6d6d6, #c8c8c8) !important;
    color: rgba(255,255,255,0.88) !important;
    box-shadow: none !important;
}
.quiz-option--muted .quiz-option-letter,
.quiz-option--removed .quiz-option-letter,
.quiz-option--muted .quiz-option-symbol,
.quiz-option--removed .quiz-option-symbol {
    background: rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.9);
    border-color: rgba(255,255,255,0.14);
}

.quiz-wildcards {
    margin-bottom: 16px;
}
.quiz-wildcard {
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}
.quiz-feedback {
    margin-top: 18px;
    border-radius: 24px;
}
.quiz-feedback-grid {
    display: grid;
    gap: 10px;
    margin-bottom: 14px;
    text-align: left;
}
.quiz-feedback-side {
    background: rgba(255,255,255,0.7);
    border-radius: 14px;
    padding: 12px 14px;
    font-size: 0.92rem;
    color: var(--sp-text);
}

.quiz-presenter-panel {
    position: sticky;
    top: 16px;
    background: linear-gradient(180deg, #0f172a 0%, #162845 100%);
    color: #fff;
    border-radius: 28px;
    padding: 18px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}
.quiz-presenter-panel__head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}
.quiz-presenter-panel__head h3 {
    margin: 0;
    font-size: 1.1rem;
}
.quiz-presenter-panel__eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.72rem;
    opacity: 0.74;
    margin-bottom: 4px;
}
.quiz-presenter-panel__badge {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 0.78rem;
    font-weight: 700;
}
.quiz-liveboard {
    display: grid;
    gap: 10px;
}
.quiz-liveboard__item {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    gap: 10px;
    align-items: center;
    background: rgba(255,255,255,0.06);
    border-radius: 18px;
    padding: 12px;
}
.quiz-liveboard__rank {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F4C542, #F59E0B);
    color: #2d2200;
    font-weight: 900;
}
.quiz-liveboard__avatar {
    width: 42px;
    height: 42px;
    object-fit: cover;
    border-radius: 14px;
    background: rgba(255,255,255,0.12);
}
.quiz-liveboard__meta {
    display: flex;
    flex-direction: column;
}
.quiz-liveboard__meta span {
    font-size: 0.78rem;
    opacity: 0.78;
}
.quiz-liveboard__score {
    font-size: 1.25rem;
    font-weight: 900;
    color: #F4C542;
}
.quiz-liveboard__empty {
    padding: 18px;
    border-radius: 16px;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.76);
}

.quiz-confetti {
    position: fixed;
    top: -18px;
    z-index: 9999;
    border-radius: 4px;
    animation: quizConfettiFall 2.2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    pointer-events: none;
}
@keyframes quizConfettiFall {
    0% {
        opacity: 1;
        transform: translate3d(0, -10px, 0) rotate(0deg);
    }
    100% {
        opacity: 0;
        transform: translate3d(60px, 110vh, 0) rotate(540deg);
    }
}

@media (max-width: 980px) {
    .quiz-stage--presentation {
        grid-template-columns: 1fr;
    }
    .quiz-presenter-panel {
        position: static;
    }
}

@media (max-width: 640px) {
    .quiz-topbar {
        flex-wrap: wrap;
    }
    .quiz-topbar-stats {
        flex-wrap: wrap;
    }
    .quiz-options--presentation {
        grid-template-columns: 1fr;
    }
    .quiz-option {
        min-height: 86px;
        padding-left: 68px;
    }
    .quiz-option-text {
        font-size: 0.94rem;
    }
}

[data-theme="dark"] {
    /* Base Colors (Dark Mode) */
    --sp-bg: #0f172a;
    --sp-surface: #1e293b;
    --sp-surface-hover: #334155;
    --sp-text: #F7FAFC;
    --sp-text-muted: #A0AEC0;
    --sp-border: #475569;
    --sp-shadow: rgba(0, 0, 0, 0.3);
    --sp-shadow-hover: rgba(0, 0, 0, 0.5);
    
    --sp-primary: #818CF8;
}

/* ─── Global Reset & Typography ─── */
html, body {
    margin: 0;
    padding: 0;
    font-family: var(--sp-font-main);
    background-color: var(--sp-bg);
    color: var(--sp-text);
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

.sp-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sp-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    margin-top: 0;
    letter-spacing: -0.02em;
}

a {
    color: var(--sp-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--sp-transition);
}

a:hover {
    filter: brightness(1.2);
}

/* ─── Theme Toggle ─── */
.sp-theme-toggle {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--sp-surface);
    color: var(--sp-text);
    border: 2px solid var(--sp-border);
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px var(--sp-shadow);
    transition: var(--sp-transition);
}
.sp-theme-toggle:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 16px var(--sp-shadow-hover);
}
.sp-body--quiz-active .sp-theme-toggle {
    bottom: 18px;
}
.sp-theme-icon-light, .sp-theme-icon-dark { display: none; }
[data-theme="light"] .sp-theme-icon-dark { display: block; }
[data-theme="dark"] .sp-theme-icon-light { display: block; }

/* ─── Light Mode Overrides ─── */
[data-theme="light"] .quiz-card {
    background: #ffffff;
    border-color: rgba(0, 51, 102, 0.12);
    color: #2D3748;
}
[data-theme="light"] .quiz-stem {
    color: #1a202c;
    background: #f7fafc;
    border-color: #e2e8f0;
}
[data-theme="light"] .quiz-context {
    background: #f7fafc;
    border-color: #e2e8f0;
}
[data-theme="light"] .quiz-context-text {
    color: #2D3748;
}
[data-theme="light"] .quiz-context-label {
    color: #4C51BF;
}
[data-theme="light"] .quiz-progress-text {
    color: #4A5568;
}
[data-theme="light"] .quiz-feedback {
    color: #2D3748;
}
[data-theme="light"] .quiz-feedback-title {
    color: inherit;
}
[data-theme="light"] .quiz-feedback--correct .quiz-feedback-title {
    color: #276749;
}
[data-theme="light"] .quiz-feedback--incorrect .quiz-feedback-title {
    color: #C53030;
}
[data-theme="light"] .quiz-feedback-explanation {
    color: #4A5568;
}
[data-theme="light"] .quiz-feedback-reward {
    color: #2D3748;
}
[data-theme="light"] .quiz-feedback-side {
    color: #2D3748;
    background: rgba(237, 242, 247, 0.85);
}
[data-theme="light"] .quiz-wildcard {
    background: #ffffff;
    border-color: #e2e8f0;
    color: #2D3748;
}
[data-theme="light"] .quiz-wildcard-label {
    color: #2D3748;
}
[data-theme="light"] .quiz-wildcard-count {
    color: #718096;
}
[data-theme="light"] .quiz-wildcard-icon {
    color: #2B6CB0;
    background: rgba(43, 108, 176, 0.1);
}
[data-theme="light"] .quiz-hint {
    color: #2D3748;
}
[data-theme="light"] .quiz-difficulty {
    color: #718096;
}
[data-theme="light"] .quiz-loading p {
    color: #4A5568;
}
[data-theme="light"] .sp-card {
    background: #ffffff;
    border-color: #e2e8f0;
    color: #2D3748;
}
[data-theme="light"] .sp-card h3,
[data-theme="light"] .sp-card h4 {
    color: #1a202c;
}
[data-theme="light"] .sp-card p {
    color: #4A5568;
}
[data-theme="light"] .sp-lobby-header {
    background: #ffffff;
    color: #2D3748;
}
[data-theme="light"] .sp-stat-badge {
    background: #f7fafc;
    border-color: #e2e8f0;
    color: #2D3748;
}
[data-theme="light"] .sp-area-icon {
    filter: none;
}
[data-theme="light"] .sp-input {
    background: #ffffff;
    border-color: #e2e8f0;
    color: #2D3748;
}
[data-theme="light"] .sp-label {
    color: #2D3748;
}
[data-theme="light"] .sp-toast {
    background: #ffffff;
    color: #2D3748;
    border-color: #e2e8f0;
}
/* Topbar must keep white text on its dark gradient in light mode */
[data-theme="light"] .quiz-topbar {
    background: linear-gradient(90deg, #003366 0%, #1f4d86 65%, #ad3333 100%) !important;
    color: #fff;
    border-bottom: none;
}
[data-theme="light"] .quiz-topbar--simulacro {
    background: linear-gradient(90deg, #1f1f32 0%, #003366 45%, #ad3333 100%) !important;
}
[data-theme="light"] .quiz-topbar-stat {
    color: #fff;
}
[data-theme="light"] .quiz-topbar-back {
    color: #003366;
    background: #fff;
}
[data-theme="light"] .quiz-icon-btn {
    color: #003366;
    background: #fff;
}

/* ─── Buttons (Quiz Show Cartoon Style) ─── */
.sp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--sp-font-main);
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--sp-btn-radius);
    border: none;
    cursor: pointer;
    transition: var(--sp-transition);
    transform-style: preserve-3d;
    position: relative;
    text-align: center;
    box-sizing: border-box;
}

.sp-btn:active {
    transform: translateY(4px);
}

/* Primary Button with '3D' push effect */
.sp-btn-primary {
    background-color: var(--sp-primary);
    color: white;
    box-shadow: 0 6px 0 darken(var(--sp-primary), 15%), 0 10px 15px rgba(0,0,0,0.2);
}
.sp-btn-primary:hover {
    background-color: #7B73FF;
}
.sp-btn-primary:active {
    box-shadow: 0 2px 0 darken(var(--sp-primary), 15%), 0 4px 6px rgba(0,0,0,0.2);
}

.sp-btn-secondary {
    background-color: var(--sp-surface);
    color: var(--sp-text);
    border: 2px solid var(--sp-border);
    box-shadow: 0 4px 0 var(--sp-border), 0 8px 10px rgba(0,0,0,0.1);
}
.sp-btn-secondary:hover {
    background-color: var(--sp-surface-hover);
}
.sp-btn-secondary:active {
    box-shadow: 0 0px 0 var(--sp-border);
    transform: translateY(4px);
}

.sp-btn-block { width: 100%; }
.sp-btn-lg { padding: 16px 32px; font-size: 1.25rem; }

/* ─── Cards ─── */
.sp-card {
    background: var(--sp-surface);
    border-radius: var(--sp-card-radius);
    padding: 24px;
    box-shadow: 0 10px 25px var(--sp-shadow);
    border: 2px solid var(--sp-border);
    transition: var(--sp-transition);
    box-sizing: border-box;
    overflow: hidden;
}

.sp-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--sp-shadow-hover);
    border-color: var(--sp-primary);
}

/* ─── Forms ─── */
.sp-form-group {
    margin-bottom: 20px;
}
.sp-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--sp-text);
}
.sp-input {
    width: 100%;
    padding: 14px 20px;
    border-radius: 16px;
    border: 2px solid var(--sp-border);
    background: var(--sp-bg);
    color: var(--sp-text);
    font-family: var(--sp-font-main);
    font-size: 1rem;
    transition: var(--sp-transition);
    box-sizing: border-box;
}
.sp-input:focus {
    outline: none;
    border-color: var(--sp-primary);
    box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.2);
}

/* ─── Layout: Landing / Auth ─── */
.sp-auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    padding: 20px;
}
.sp-auth-box {
    width: 100%;
    max-width: 420px;
    text-align: center;
    box-sizing: border-box;
}
.sp-auth-logo {
    font-size: 4rem;
    color: var(--sp-primary);
    margin-bottom: 20px;
    text-shadow: 3px 3px 0px rgba(0,0,0,0.1);
}

/* ─── Layout: Lobby ─── */
.sp-lobby-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: var(--sp-surface);
    border-radius: var(--sp-card-radius);
    margin: 20px;
    box-shadow: 0 4px 15px var(--sp-shadow);
}
.sp-player-info {
    display: flex;
    align-items: center;
    gap: 15px;
}
.sp-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--sp-bg);
    border: 3px solid var(--sp-primary);
    object-fit: cover;
}
.sp-stats-bar {
    display: flex;
    gap: 15px;
}
.sp-stat-badge {
    background: var(--sp-bg);
    padding: 8px 16px;
    border-radius: 99px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 2px solid var(--sp-border);
}
.sp-stat-badge i.fa-coins { color: var(--sp-gold); }
.sp-stat-badge i.fa-star { color: var(--sp-primary); }
.sp-stat-badge i.fa-fire { color: var(--sp-secondary); }

.sp-areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px;
}

.sp-area-card {
    text-align: center;
    cursor: pointer;
    overflow: hidden;
    position: relative;
}
.sp-area-icon {
    font-size: 3.5rem;
    margin-bottom: 15px;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.sp-area-card:hover .sp-area-icon {
    transform: scale(1.2) rotate(5deg);
}

/* ─── Quiz Top Bar ─── */
.quiz-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: var(--sp-surface);
    border-bottom: 2px solid var(--sp-border);
}
.quiz-topbar--simulacro {
    background: var(--sp-primary);
    color: white;
    border-bottom: none;
}
.quiz-topbar-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 99px;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--sp-text);
    background: var(--sp-bg);
    text-decoration: none;
    border: 2px solid var(--sp-border);
    transition: var(--sp-transition);
}
.quiz-topbar-back:hover { background: var(--sp-surface-hover); }
.quiz-topbar-stats {
    display: flex;
    gap: 12px;
    font-weight: 700;
}
.quiz-topbar-stat {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.95rem;
}

/* ─── Quiz Card (main container) ─── */
#quiz-root {
    flex: 1;
    padding: 12px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.quiz-card {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.quiz-card--visible {
    opacity: 1;
    transform: translateY(0);
}
.quiz-card--exit {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ─── Progress ─── */
.quiz-progress {
    margin-bottom: 14px;
}
.quiz-progress-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 6px;
}
.quiz-progress-text {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--sp-text-muted);
    display: block;
}
.quiz-progress-time {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--sp-primary);
    font-family: var(--sp-font-mono);
}
.quiz-progress-time--danger {
    color: #ad3333;
}
.quiz-progress-bar {
    width: 100%;
    height: 6px;
    background: var(--sp-border);
    border-radius: 3px;
    overflow: hidden;
}
.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--sp-primary), var(--sp-tertiary));
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* ─── Question Header ─── */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    gap: 12px;
}
.quiz-area-badge {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 99px;
    color: white;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.quiz-difficulty {
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--sp-text-muted);
    text-transform: uppercase;
}
.quiz-header-actions {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-shrink: 0;
}
.quiz-read-btn {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 1200;
    width: 50px;
    height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    background: #003366;
    color: #fff;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(0, 51, 102, 0.35), 0 5px 0 rgba(0, 0, 0, 0.14);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.quiz-read-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 0 rgba(0, 0, 0, 0.14);
}
.quiz-read-btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.14);
}
.quiz-read-btn--active {
    background: #ad3333;
}
.quiz-reading-panel {
    max-height: clamp(220px, 38dvh, 420px);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 51, 102, 0.42) transparent;
    padding-right: 8px;
    margin-bottom: 16px;
}
.quiz-reading-panel::-webkit-scrollbar {
    width: 8px;
}
.quiz-reading-panel::-webkit-scrollbar-track {
    background: transparent;
}
.quiz-reading-panel::-webkit-scrollbar-thumb {
    background: rgba(0, 51, 102, 0.35);
    border-radius: 999px;
}
.quiz-reading-panel:focus {
    outline: 3px solid rgba(0, 51, 102, 0.18);
    outline-offset: 3px;
}
.quiz-reading-panel .quiz-stem-wrap {
    margin-bottom: 0;
}
.quiz-reading-panel .quiz-stem {
    margin-bottom: 0;
}

/* ─── Context Block (reading passages) ─── */
.quiz-context {
    background: var(--sp-surface);
    border: 2px solid var(--sp-border);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 16px;
}
.quiz-context-label {
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--sp-primary);
    margin-bottom: 10px;
    text-transform: uppercase;
}
.quiz-context-text {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--sp-text);
    white-space: pre-line;
}

/* ─── Question Stem ─── */
.quiz-stem {
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.55;
    color: var(--sp-text);
    margin-bottom: 18px;
    padding: 16px;
    background: var(--sp-surface);
    border-radius: 16px;
    border: 2px solid var(--sp-border);
}
.quiz-stem p { margin: 0 0 8px 0; }
.quiz-stem em, .quiz-stem i { font-style: italic; }
.quiz-stem strong, .quiz-stem b { font-weight: 800; }

/* ─── Options ─── */
.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 12px;
}
.quiz-wildcards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}
.quiz-wildcard {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 2px solid var(--sp-border);
    background: var(--sp-surface);
    color: var(--sp-text);
    border-radius: 14px;
    padding: 10px 12px;
    cursor: pointer;
    transition: var(--sp-transition);
    text-align: left;
}
.quiz-wildcard:hover:not(.quiz-wildcard--disabled) {
    border-color: #003366;
    transform: translateY(-2px);
}
.quiz-wildcard--disabled {
    opacity: 0.55;
    cursor: not-allowed;
}
.quiz-wildcard-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 51, 102, 0.08);
    color: #003366;
    flex-shrink: 0;
}
.quiz-wildcard-label {
    flex: 1;
    font-weight: 700;
    font-size: 0.9rem;
}
.quiz-wildcard-count {
    font-weight: 800;
    color: var(--sp-text-muted);
}
.quiz-hint {
    border: 2px dashed rgba(20, 184, 166, 0.4);
    background: rgba(20, 184, 166, 0.08);
    color: var(--sp-text);
    border-radius: 14px;
    padding: 12px 14px;
    margin-bottom: 14px;
    font-size: 0.92rem;
    line-height: 1.5;
}
.quiz-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--sp-surface);
    border: 2px solid var(--sp-border);
    border-radius: 14px;
    cursor: pointer;
    font-family: var(--sp-font-main);
    font-size: 0.95rem;
    color: var(--sp-text);
    text-align: left;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}
.quiz-option:hover:not(.quiz-option--disabled) {
    background: var(--sp-surface-hover);
    border-color: var(--sp-primary);
    transform: translateX(4px);
}
.quiz-option:active:not(.quiz-option--disabled) {
    transform: scale(0.98);
}
.quiz-option-letter {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--sp-bg);
    font-weight: 800;
    font-size: 0.85rem;
    color: var(--sp-text-muted);
    border: 2px solid var(--sp-border);
}
.quiz-option-text {
    flex: 1;
    line-height: 1.4;
}

/* Option states */
.quiz-option--disabled {
    pointer-events: none;
    opacity: 0.7;
}
.quiz-option--selected {
    border-color: var(--sp-primary);
    background: rgba(108, 99, 255, 0.08);
}
.quiz-option--correct {
    border-color: #2E8B57 !important;
    background: rgba(168, 230, 207, 0.3) !important;
    color: #1a4d2e !important;
    opacity: 1 !important;
}
.quiz-option--correct .quiz-option-letter {
    background: #2E8B57;
    color: white;
    border-color: #2E8B57;
}
.quiz-option--incorrect {
    border-color: #DC2626 !important;
    background: rgba(255, 107, 107, 0.15) !important;
    color: #7f1d1d !important;
    opacity: 1 !important;
}
.quiz-option--correct .quiz-option-text,
.quiz-option--incorrect .quiz-option-text {
    color: inherit !important;
}
.quiz-option--correct .quiz-option-symbol,
.quiz-option--incorrect .quiz-option-symbol {
    background: rgba(0,0,0,0.12) !important;
    color: inherit !important;
}
.quiz-option--incorrect .quiz-option-letter {
    background: #DC2626;
    color: white;
    border-color: #DC2626;
}
.quiz-option--removed {
    opacity: 0.35 !important;
    filter: grayscale(1);
}

.quiz-option.quiz-option--variant-0:not(.quiz-option--correct):not(.quiz-option--incorrect):not(.quiz-option--removed),
.quiz-option.quiz-option--variant-0.quiz-option--muted:not(.quiz-option--removed) {
    background: linear-gradient(135deg, #E33B2F, #ff6b57) !important;
    border-color: #b91c1c !important;
    color: #fff !important;
}
.quiz-option.quiz-option--variant-1:not(.quiz-option--correct):not(.quiz-option--incorrect):not(.quiz-option--removed),
.quiz-option.quiz-option--variant-1.quiz-option--muted:not(.quiz-option--removed) {
    background: linear-gradient(135deg, #1368CE, #3C8BFF) !important;
    border-color: #0f4fa3 !important;
    color: #fff !important;
}
.quiz-option.quiz-option--variant-2:not(.quiz-option--correct):not(.quiz-option--incorrect):not(.quiz-option--removed),
.quiz-option.quiz-option--variant-2.quiz-option--muted:not(.quiz-option--removed) {
    background: linear-gradient(135deg, #D89E00, #F6C647) !important;
    border-color: #a66f00 !important;
    color: #2f2200 !important;
}
.quiz-option.quiz-option--variant-3:not(.quiz-option--correct):not(.quiz-option--incorrect):not(.quiz-option--removed),
.quiz-option.quiz-option--variant-3.quiz-option--muted:not(.quiz-option--removed) {
    background: linear-gradient(135deg, #26890C, #41BF2A) !important;
    border-color: #176307 !important;
    color: #fff !important;
}
.quiz-option.quiz-option--muted {
    opacity: 0.78 !important;
    filter: saturate(0.82);
}
.quiz-option.quiz-option--variant-2 .quiz-option-text,
.quiz-option.quiz-option--variant-2 .quiz-option-symbol {
    color: #2f2200;
}
.quiz-option {
    position: relative;
    min-height: 82px;
    padding: 18px 18px 18px 74px;
    border-radius: 18px;
    color: #fff;
    box-shadow: 0 10px 0 rgba(0, 0, 0, 0.14);
    overflow: hidden;
}
.quiz-option-symbol {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    z-index: 1;
}
.quiz-option-text {
    position: relative;
    z-index: 1;
    min-width: 0;
    overflow-wrap: anywhere;
}

/* ─── Feedback Panel ─── */
.quiz-feedback {
    margin-top: 12px;
    padding: 20px;
    border-radius: 16px;
    text-align: center;
    opacity: 0;
    transform: translateY(12px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.quiz-feedback--visible {
    opacity: 1;
    transform: translateY(0);
}
.quiz-feedback--correct {
    background: linear-gradient(135deg, rgba(168,230,207,0.2), rgba(46,139,87,0.08));
    border: 2px solid rgba(46,139,87,0.3);
}
.quiz-feedback--incorrect {
    background: linear-gradient(135deg, rgba(255,107,107,0.15), rgba(220,38,38,0.08));
    border: 2px solid rgba(220,38,38,0.25);
}
.quiz-feedback-icon {
    font-size: 2rem;
    margin-bottom: 6px;
}
.quiz-feedback-title {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.quiz-feedback--correct .quiz-feedback-title { color: #2E8B57; }
.quiz-feedback--incorrect .quiz-feedback-title { color: #DC2626; }
.quiz-feedback-explanation {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--sp-text-muted);
    margin-bottom: 14px;
    max-height: 120px;
    overflow-y: auto;
}
.quiz-feedback-reward {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--sp-text);
}
.quiz-btn-next {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: 99px;
    border: none;
    background: var(--sp-primary);
    color: white;
    font-family: var(--sp-font-main);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 0 rgba(0,0,0,0.15);
}
.quiz-btn-next:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 0 rgba(0,0,0,0.15);
}
.quiz-btn-next:active {
    transform: translateY(2px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.15);
}

/* ─── Loading / Spinner ─── */
.quiz-loading {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    min-height: 300px;
    color: var(--sp-primary);
    font-weight: 600;
    font-size: 1.1rem;
}
.quiz-loading--error { color: var(--sp-secondary); }
.quiz-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--sp-border);
    border-top-color: var(--sp-primary);
    border-radius: 50%;
    animation: quizSpin 0.8s linear infinite;
}
@keyframes quizSpin { to { transform: rotate(360deg); } }

/* ─── Toasts ─── */
.sp-toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.sp-toast {
    background: var(--sp-surface);
    color: var(--sp-text);
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-left: 6px solid var(--sp-primary);
}
.sp-toast--visible { transform: translateX(0); }
.sp-toast--success { border-left-color: var(--sp-success); }
.sp-toast--error { border-left-color: var(--sp-secondary); }
.sp-toast--info { border-left-color: var(--sp-tertiary); }

/* ─── Utility ─── */
.text-center { text-align: center; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .sp-theme-toggle {
        bottom: 14px;
        left: 14px;
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
    .sp-card {
        padding: 16px;
    }
    .sp-btn-lg {
        padding: 14px 20px;
        font-size: 1.05rem;
    }
    .sp-auth-container {
        padding: 12px;
    }
    .sp-auth-logo {
        font-size: 3rem;
    }
    .sp-wrapper {
        padding: 0;
    }
    .sp-lobby-header {
        flex-direction: column;
        gap: 12px;
        margin: 10px;
        padding: 16px;
        border-radius: 16px;
    }
    .sp-player-info {
        width: 100%;
        justify-content: center;
    }
    .sp-stats-bar {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }
    .sp-stat-badge {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    .sp-areas-grid {
        padding: 10px;
        gap: 12px;
        grid-template-columns: 1fr;
    }
    .sp-card {
        border-radius: 16px;
    }
    .quiz-topbar {
        padding: 8px 12px;
    }
    #quiz-root {
        padding: 10px;
    }
    .quiz-stem {
        font-size: 0.95rem;
        padding: 12px;
    }
    .quiz-header {
        align-items: flex-start;
    }
    .quiz-header-actions {
        gap: 8px;
    }
    .quiz-read-btn {
        width: 56px;
        height: 56px;
        font-size: 1.15rem;
        box-shadow: 0 10px 24px rgba(0, 51, 102, 0.28), 0 5px 0 rgba(0, 0, 0, 0.18);
    }
    .quiz-reading-panel {
        max-height: 42dvh;
        padding-right: 6px;
    }
    .quiz-option {
        display: grid;
        grid-template-columns: 38px minmax(0, 1fr);
        align-items: center;
        gap: 10px;
        min-height: 74px;
        padding: 12px !important;
        border-radius: 16px;
    }
    .quiz-option-symbol {
        position: static;
        transform: none;
        width: 38px;
        height: 38px;
        font-size: 1.2rem;
        align-self: center;
    }
    .quiz-option-text {
        min-width: 0;
        padding-top: 0;
        font-size: 0.92rem;
        line-height: 1.32;
        overflow-wrap: anywhere;
    }
    .quiz-context-text {
        font-size: 0.88rem;
    }
    .quiz-feedback {
        padding: 16px;
    }
    .quiz-wildcards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        margin-bottom: 12px;
    }
    .quiz-wildcard {
        min-height: 46px;
        padding: 7px 9px;
        gap: 7px;
        border-radius: 12px;
    }
    .quiz-wildcard-icon {
        width: 28px;
        height: 28px;
        font-size: 0.78rem;
    }
    .quiz-wildcard-label {
        font-size: 0.76rem;
        line-height: 1.1;
    }
    .quiz-wildcard-count {
        font-size: 0.78rem;
    }
}

/* Final theme pass for the quiz surface. These rules live after the base
   declarations so the toggle can reliably switch the play screen. */
[data-theme="light"] .sp-body {
    background: #f4f7f6;
    color: #2d3748;
}
[data-theme="light"] .quiz-topbar {
    background: #ffffff !important;
    color: #1f2937 !important;
    border-bottom: 2px solid #e2e8f0;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.08);
}
[data-theme="light"] .quiz-topbar-stat,
[data-theme="light"] .quiz-topbar > div {
    color: #1f2937;
}
[data-theme="light"] .quiz-topbar-back,
[data-theme="light"] .quiz-icon-btn {
    background: #f8fafc;
    color: #003366;
    border: 1px solid #dbe4ee;
}
[data-theme="light"] .quiz-card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%) !important;
    border-color: rgba(0, 51, 102, 0.12);
    box-shadow: 0 18px 36px rgba(0, 51, 102, 0.12);
    color: #2d3748;
}
[data-theme="light"] .quiz-stem {
    background: #ffffff;
    border-color: #dbe4ee;
    color: #1f2937;
}
[data-theme="light"] .quiz-wildcard {
    background: #ffffff;
    border-color: #dbe4ee;
    color: #1f2937;
}
[data-theme="light"] .quiz-feedback {
    background-color: #ffffff;
    color: #2d3748;
}
[data-theme="light"] .quiz-feedback-explanation {
    color: #4a5568;
}
[data-theme="light"] .sp-theme-toggle {
    background: #ffffff;
    color: #1f2937;
}

[data-theme="dark"] .quiz-topbar {
    background: #0f172a !important;
    color: #ffffff;
    border-bottom: 2px solid #475569;
}
[data-theme="dark"] .quiz-card {
    background: linear-gradient(180deg, #111827 0%, #0f172a 100%) !important;
    border-color: rgba(148, 163, 184, 0.28);
    box-shadow: 0 20px 44px rgba(0, 0, 0, 0.32);
    color: #f7fafc;
}
[data-theme="dark"] .quiz-stem {
    background: #1e293b;
    border-color: #64748b;
    color: #ffffff;
}
[data-theme="dark"] .quiz-wildcard {
    background: #1e293b;
    border-color: #64748b;
    color: #ffffff;
}
[data-theme="dark"] .quiz-feedback {
    color: #f7fafc;
}