/* ========================================
   RESET E VARIABILI CSS PERSONALIZZABILI
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ===== COLORI PRINCIPALI (PERSONALIZZABILI) ===== */
    --primary-color: #4F46E5;           /* Indigo moderno */
    --primary-light: #6366F1;
    --primary-dark: #4338CA;
    --secondary-color: #10B981;         /* Verde success */
    --secondary-light: #34D399;
    --error-color: #EF4444;             /* Rosso */
    --error-light: #F87171;
    --warning-color: #F59E0B;           /* Arancione */
    --warning-light: #FBBF24;
    
    /* ===== COLORI DI SFONDO ===== */
    --bg-gradient-start: #F8FAFC;
    --bg-gradient-end: #E0E7FF;
    --card-bg: #FFFFFF;
    --card-bg-hover: #FAFAFA;
    
    /* ===== COLORI TESTO ===== */
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    
    /* ===== BORDI E OMBRE ===== */
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    
    /* Ombre multiple livelli */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15), 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Ombre colorate */
    --shadow-primary: 0 8px 24px rgba(79, 70, 229, 0.25);
    --shadow-success: 0 8px 24px rgba(16, 185, 129, 0.25);
    --shadow-error: 0 8px 24px rgba(239, 68, 68, 0.25);
    
    /* ===== TRANSIZIONI (PERSONALIZZABILI) ===== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* ===== BORDER RADIUS ===== */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

/* ========================================
   BODY E LAYOUT GENERALE
   ======================================== */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
}

.screen {
    display: none;
    min-height: 100vh;
    padding: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.screen.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 640px;
    margin: 0 auto;
}

/* ========================================
   MENU PRINCIPALE - HEADER
   ======================================== */
.app-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.title-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 4px 8px rgba(79, 70, 229, 0.3));
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 1rem;
    font-weight: 500;
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== INIZIO STILI DISCLAIMER ==================== */
.disclaimer-box {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid rgba(79, 70, 229, 0.2);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-md);
    display: flex;
    gap: 16px;
    align-items: flex-start;
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
    position: relative;
    overflow: hidden;
}

.disclaimer-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.disclaimer-icon {
    font-size: 2rem;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.disclaimer-content {
    flex: 1;
}

.disclaimer-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.disclaimer-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.disclaimer-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==================== FINE STILI DISCLAIMER ==================== */

/* ========================================
   MENU BUTTONS - DESIGN MODERNO
   ======================================== */
.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.menu-btn {
    background: var(--card-bg);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1rem;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* Stagger animation per i pulsanti */
.menu-btn:nth-child(1) { animation-delay: 0.3s; }
.menu-btn:nth-child(2) { animation-delay: 0.35s; }
.menu-btn:nth-child(3) { animation-delay: 0.4s; }
.menu-btn:nth-child(4) { animation-delay: 0.45s; }
.menu-btn:nth-child(5) { animation-delay: 0.5s; }
.menu-btn:nth-child(6) { animation-delay: 0.55s; }
.menu-btn:nth-child(7) { animation-delay: 0.6s; }
.menu-btn:nth-child(8) { animation-delay: 0.65s; }
.menu-btn:nth-child(9) { animation-delay: 0.7s; }

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.menu-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(79, 70, 229, 0.08), transparent);
    transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.menu-btn:hover::before {
    left: 100%;
}

.menu-btn:active {
    transform: translateY(-2px) scale(0.98);
}

.quiz-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 1.3rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    transition: all var(--transition-base);
}

.menu-btn:hover .quiz-number {
    transform: scale(1.1) rotate(-5deg);
}

.quiz-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.quiz-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.05rem;
    letter-spacing: -0.3px;
    line-height: 1.3;
}

.quiz-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.quiz-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.menu-btn:hover .quiz-arrow {
    transform: translateX(6px);
}

/* Quiz Generale - Stile Speciale */
.general-quiz {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
    border-color: var(--secondary-color);
    color: white;
    margin-top: 12px;
    box-shadow: var(--shadow-success);
}

.general-quiz:hover {
    border-color: white;
    box-shadow: 0 12px 32px rgba(16, 185, 129, 0.4);
}

.general-quiz .quiz-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.general-quiz .quiz-title,
.general-quiz .quiz-info,
.general-quiz .quiz-arrow {
    color: white;
}

.quiz-info {
    font-size: 0.85rem;
    opacity: 0.95;
    font-weight: 500;
}

/* ========================================
   STATS CONTAINER
   ======================================== */
.stats-container {
    margin-top: 32px;
    text-align: center;
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.75s both;
}

.clear-stats-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    padding: 14px 28px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.clear-stats-btn:hover {
    background: var(--error-color);
    border-color: var(--error-color);
    color: white;
    box-shadow: var(--shadow-error);
    transform: translateY(-2px);
}

.clear-stats-btn:active {
    transform: translateY(0) scale(0.97);
}

.btn-icon {
    font-size: 1.1rem;
}

/* ========================================
   SCHERMATA QUIZ - HEADER
   ======================================== */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 12px;
    animation: slideDown 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.back-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    padding: 12px 20px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

.back-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-primary);
    transform: translateX(-4px);
}

.back-btn:active {
    transform: translateX(-2px) scale(0.97);
}

.back-icon {
    font-size: 1.2rem;
}

.progress-info {
    flex: 1;
    text-align: center;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
    letter-spacing: -0.3px;
}

/* ========================================
   TIMER CIRCOLARE ANIMATO
   ======================================== */
.timer-container {
    position: relative;
    width: 60px;
    height: 60px;
}

.timer-svg {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-90deg);
}

.timer-bg {
    fill: none;
    stroke: var(--border-light);
    stroke-width: 4;
}

.timer-progress {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 163.36;
    stroke-dashoffset: 0;
    transition: stroke var(--transition-base), stroke-dashoffset 1s linear;
}

.timer-progress.warning {
    stroke: var(--warning-color);
}

.timer-progress.danger {
    stroke: var(--error-color);
    animation: timerPulse 0.6s infinite;
}

@keyframes timerPulse {
    0%, 100% { stroke-width: 4; opacity: 1; }
    50% { stroke-width: 5; opacity: 0.8; }
}

.timer-text-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.timer-text {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color var(--transition-base);
}

.timer-progress.warning + .timer-text-wrapper .timer-text {
    color: var(--warning-color);
}

.timer-progress.danger + .timer-text-wrapper .timer-text {
    color: var(--error-color);
}

/* ========================================
   BARRA DI PROGRESSO
   ======================================== */
.progress-bar {
    height: 8px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 28px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    animation: slideDown 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    width: 0%;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-full);
    box-shadow: 0 0 12px rgba(79, 70, 229, 0.5);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ========================================
   QUESTION CONTAINER
   ======================================== */
.question-container {
    background: var(--card-bg);
    padding: 28px 24px;
    border-radius: var(--radius-xl);
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-light);
    animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
    position: relative;
    overflow: hidden;
}

.question-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.question-header {
    text-align: center;
    margin-bottom: 16px;
}

.question-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 4px 8px rgba(79, 70, 229, 0.3));
}

.question-text {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

/* ========================================
   ANSWERS CONTAINER
   ======================================== */
.answers-container {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.answer-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    line-height: 1.5;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.answer-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.answer-btn:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
    background: var(--card-bg-hover);
}

.answer-btn:hover::before {
    transform: scaleY(1);
}

.answer-btn:active {
    transform: translateX(2px) scale(0.98);
}

.answer-btn.selected {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.05);
    box-shadow: var(--shadow-primary);
}

.answer-btn.selected::before {
    transform: scaleY(1);
}

.answer-btn.correct {
    border-color: var(--secondary-color);
    background: rgba(16, 185, 129, 0.1);
    box-shadow: var(--shadow-success);
    animation: correctPulse 0.6s ease;
}

.answer-btn.correct::before {
    background: var(--secondary-color);
    transform: scaleY(1);
}

.answer-btn.wrong {
    border-color: var(--error-color);
    background: rgba(239, 68, 68, 0.1);
    box-shadow: var(--shadow-error);
    animation: wrongShake 0.6s ease;
}

.answer-btn.wrong::before {
    background: var(--error-color);
    transform: scaleY(1);
}

.answer-btn.disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

@keyframes correctPulse {
    0%, 100% { transform: translateX(0) scale(1); }
    25% { transform: translateX(4px) scale(1.02); }
    75% { transform: translateX(4px) scale(1.02); }
}

@keyframes wrongShake {
    0%, 100% { transform: translateX(0); }
    15% { transform: translateX(-8px); }
    30% { transform: translateX(8px); }
    45% { transform: translateX(-8px); }
    60% { transform: translateX(8px); }
    75% { transform: translateX(-4px); }
}

/* ========================================
   SCHERMATA RISULTATI
   ======================================== */
.results-container {
    text-align: center;
    padding: 20px 0;
}

.results-title {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.results-emoji {
    font-size: 2.5rem;
    filter: drop-shadow(0 4px 12px rgba(79, 70, 229, 0.3));
}

.score-circle-wrapper {
    margin-bottom: 32px;
    animation: scaleIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}

.score-circle {
    position: relative;
    width: 220px;
    height: 220px;
    margin: 0 auto;
}

.score-percentage {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.percentage-symbol {
    font-size: 2rem;
    opacity: 0.8;
}

.score-ring {
    transform: rotate(-90deg);
    filter: drop-shadow(0 4px 12px rgba(79, 70, 229, 0.3));
}

.score-ring-background {
    fill: none;
    stroke: var(--border-light);
    stroke-width: 14;
}

.score-ring-progress {
    fill: none;
    stroke: url(#scoreGradient);
    stroke-width: 14;
    stroke-linecap: round;
    stroke-dasharray: 628.32;
    stroke-dashoffset: 628.32;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Gradiente dinamico per lo score ring */
.score-ring-progress[data-score="excellent"] {
    stroke: var(--secondary-color);
}

.score-ring-progress[data-score="good"] {
    stroke: var(--primary-color);
}

.score-ring-progress[data-score="average"] {
    stroke: var(--warning-color);
}

.score-ring-progress[data-score="poor"] {
    stroke: var(--error-color);
}

/* ========================================
   RESULTS DETAILS
   ======================================== */
.results-details {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-light);
    display: flex;
    justify-content: space-around;
    gap: 16px;
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.4s both;
}

.result-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex: 1;
    padding: 16px 8px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.result-stat:hover {
    background: var(--card-bg-hover);
    transform: translateY(-4px);
}

.stat-icon {
    font-size: 2rem;
    font-weight: 900;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
}

.correct-stat .stat-icon {
    background: rgba(16, 185, 129, 0.15);
    color: var(--secondary-color);
}

.wrong-stat .stat-icon {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error-color);
}

.total-stat .stat-icon {
    background: rgba(79, 70, 229, 0.15);
    color: var(--primary-color);
}

.stat-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.result-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
}

.correct-stat .result-value {
    color: var(--secondary-color);
}

.wrong-stat .result-value {
    color: var(--error-color);
}

.total-stat .result-value {
    color: var(--primary-color);
}

/* ========================================
   RESULT MESSAGE
   ======================================== */
.result-message {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 20px 28px;
    border-radius: var(--radius-lg);
    margin-bottom: 28px;
    font-weight: 700;
    font-size: 1.15rem;
    box-shadow: var(--shadow-primary);
    animation: scaleIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.5s both;
}

/* ========================================
   RESULTS BUTTONS
   ======================================== */
.results-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.6s both;
}

.result-btn {
    padding: 18px 32px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 700;
    transition: all var(--transition-base);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: var(--shadow-md);
}

.result-btn.retry {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.result-btn.retry:hover {
    box-shadow: var(--shadow-primary);
    transform: translateY(-4px);
}

.result-btn.retry:active {
    transform: translateY(-2px) scale(0.98);
}

.result-btn.menu {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.result-btn.menu:hover {
    background: var(--card-bg-hover);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.result-btn.menu:active {
    transform: translateY(-2px) scale(0.98);
}

/* ========================================
   RESPONSIVE - TABLET E DESKTOP
   ======================================== */
@media (min-width: 768px) {
    .app-title {
        font-size: 3rem;
    }
    
    .title-icon {
        font-size: 3.5rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .disclaimer-box {
        padding: 24px 28px;
    }
    
    .question-text {
        font-size: 1.4rem;
    }
    
    .answer-btn {
        font-size: 1.1rem;
        padding: 22px 28px;
    }
    
    .results-buttons {
        flex-direction: row;
        gap: 16px;
    }
    
    .result-btn {
        flex: 1;
    }
    
    .results-details {
        gap: 24px;
    }
}

/* ========================================
   UTILITY ANIMATIONS
   ======================================== */
.fade-in {
    animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   ACCESSIBILITÀ
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible per accessibilità tastiera */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* ========================================
   NUOVE FUNZIONALITÀ - VERSIONE ULTIMATE
   ======================================== */

/* ===== APP HEADER CON CONTROLLI ===== */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    animation: slideDown 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.controls-left,
.controls-right {
    display: flex;
    gap: 8px;
    align-items: center;
}

.icon-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.icon-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.icon-btn:active {
    transform: scale(0.95);
}

.icon-btn.sound-off .sound-icon::after {
    content: '🔇';
}

/* ===== STREAK BADGE ===== */
.streak-badge {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

.streak-icon {
    font-size: 1.2rem;
    animation: flicker 2s infinite;
}

@keyframes flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ===== BADGES ACHIEVEMENTS ===== */
.badges-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.25s both;
}

.badges-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-align: center;
}

.badges-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.badge-item {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(99, 102, 241, 0.1));
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 100px;
    transition: all var(--transition-base);
    animation: badgePop 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes badgePop {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.badge-item:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.badge-icon {
    font-size: 2rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.badge-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

/* ===== QUIZ SPECIALI (SPEED, REVIEW) ===== */
.speed-quiz {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    border-color: #F59E0B;
    color: white;
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.speed-quiz:hover {
    border-color: white;
    box-shadow: 0 12px 32px rgba(245, 158, 11, 0.5);
}

.speed-quiz .quiz-icon,
.speed-quiz .quiz-title,
.speed-quiz .quiz-info,
.speed-quiz .quiz-arrow {
    color: white;
}

.review-quiz {
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-color: #8B5CF6;
    color: white;
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.review-quiz:hover {
    border-color: white;
    box-shadow: 0 12px 32px rgba(139, 92, 246, 0.5);
}

.review-quiz .quiz-icon,
.review-quiz .quiz-title,
.review-quiz .quiz-info,
.review-quiz .quiz-arrow {
    color: white;
}

/* ===== PROGRESS RINGS PER CAPITOLI ===== */
.chapter-progress {
    position: relative;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--border-light);
    stroke-width: 3;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--secondary-color);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 87.96;
    stroke-dashoffset: 87.96;
    transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== MODAL TIMER SETTINGS ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.modal-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.timer-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.timer-option {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px 12px;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}

.timer-option:hover {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.05);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.timer-option.selected {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.1);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.option-icon {
    font-size: 2rem;
}

.option-label {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.option-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.modal-btn-start {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-primary);
}

.modal-btn-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(79, 70, 229, 0.4);
}

.modal-btn-start:active {
    transform: translateY(0) scale(0.98);
}

/* ===== NEW BADGE ALERT ===== */
.new-badge-alert {
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
    animation: badgePop 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.badge-unlock-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
}

.badge-unlock-text {
    font-weight: 700;
    font-size: 1.05rem;
    display: block;
    margin-bottom: 12px;
}

.unlocked-badge {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.unlocked-badge-icon {
    font-size: 2.5rem;
}

.unlocked-badge-name {
    font-weight: 700;
    font-size: 1.1rem;
}

/* ===== REVIEW BUTTON IN RESULTS ===== */
.result-btn.review {
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    color: white;
}

.result-btn.review:hover {
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.4);
    transform: translateY(-4px);
}

/* ===== DARK MODE ===== */
body.dark-mode {
    --bg-gradient-start: #0F172A;
    --bg-gradient-end: #1E293B;
    --card-bg: #1E293B;
    --card-bg-hover: #334155;
    --text-primary: #F1F5F9;
    --text-secondary: #CBD5E1;
    --text-light: #94A3B8;
    --border-color: #334155;
    --border-light: #475569;
}

body.dark-mode .disclaimer-box {
    background: rgba(30, 41, 59, 0.85);
    border-color: rgba(79, 70, 229, 0.3);
}

body.dark-mode .menu-btn,
body.dark-mode .question-container,
body.dark-mode .answer-btn,
body.dark-mode .results-details,
body.dark-mode .modal-content,
body.dark-mode .badges-container {
    background: var(--card-bg);
    border-color: var(--border-color);
}

body.dark-mode .answer-btn:hover {
    background: var(--card-bg-hover);
}

body.dark-mode .theme-icon::after {
    content: '☀️';
}

/* ===== TIMER NASCOSTO (MODALITÀ SENZA TIMER) ===== */
.timer-container.hidden {
    opacity: 0.3;
    pointer-events: none;
}

/* ===== RESPONSIVE MODAL ===== */
@media (max-width: 480px) {
    .timer-options {
        grid-template-columns: 1fr;
    }
}


/* ========================================
   SEZIONI FORMAZIONE AVANZATA
   ======================================== */

.section-divider {
    margin: 30px 0 20px 0;
    text-align: center;
    position: relative;
}

.section-divider::before,
.section-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 35%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-color), transparent);
}

.section-divider::before {
    left: 0;
}

.section-divider::after {
    right: 0;
}

.divider-text {
    background: var(--card-bg);
    padding: 0 15px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Bottone SCENARI - Attivo */
.scenari-btn {
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%) !important;
    color: white !important;
    border: none !important;
}

.scenari-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.scenari-btn .quiz-icon {
    background: rgba(255, 255, 255, 0.2);
}

.scenari-btn .quiz-title,
.scenari-btn .quiz-info {
    color: white !important;
}

/* Bottoni SKILL e RIPASSI - Disabilitati */
.menu-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--border-light) !important;
    pointer-events: none;
}

.menu-btn.disabled .quiz-icon {
    background: var(--border-color);
    opacity: 0.7;
}

.menu-btn.disabled .quiz-title {
    color: var(--text-light) !important;
}

.menu-btn.disabled .quiz-info {
    color: var(--text-light) !important;
}

.coming-soon-badge {
    background: var(--warning-color);
    color: white;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: auto;
}

/* Dark mode per sezioni */
body.dark-mode .section-divider::before,
body.dark-mode .section-divider::after {
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

body.dark-mode .divider-text {
    background: var(--card-bg);
}

body.dark-mode .menu-btn.disabled {
    background: rgba(255, 255, 255, 0.05) !important;
}

/* ========================================
   MENU PRINCIPALE - 4 CARD GRANDI
   ======================================== */

.main-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.main-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 35px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

.main-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.main-card:hover:not(.disabled) {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.main-card:hover:not(.disabled)::before {
    transform: scaleX(1);
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    display: block;
}

.card-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.card-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 25px;
    flex-grow: 1;
}

.card-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: auto;
}

.stat-item {
    color: var(--text-light);
    font-size: 0.9rem;
}

.card-arrow {
    position: absolute;
    bottom: 30px;
    right: 30px;
    font-size: 2rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.main-card:hover:not(.disabled) .card-arrow {
    transform: translateX(5px);
}

/* Card QUIZ - Blu */
.quiz-card {
    border-left: 5px solid var(--primary-color);
}

.quiz-card .card-icon {
    filter: drop-shadow(0 4px 8px rgba(79, 70, 229, 0.3));
}

/* Card SCENARI - Verde */
.scenari-card {
    border-left: 5px solid var(--secondary-color);
}

.scenari-card .card-icon {
    filter: drop-shadow(0 4px 8px rgba(16, 185, 129, 0.3));
}

.scenari-card .card-arrow {
    color: var(--secondary-color);
}

/* Card DISABILITATE */
.main-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    background: var(--border-light);
}

.main-card.disabled .card-icon {
    filter: grayscale(100%);
}

.coming-soon-large {
    background: var(--warning-color);
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 700;
    text-align: center;
    margin-top: auto;
}

.footer-info {
    background: rgba(79, 70, 229, 0.05);
    border-left: 4px solid var(--primary-color);
    padding: 20px;
    border-radius: 12px;
    margin-top: 30px;
}

.footer-info p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
    .main-menu-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .main-card {
        min-height: 280px;
        padding: 30px;
    }
    
    .card-icon {
        font-size: 3rem;
    }
    
    .card-title {
        font-size: 1.4rem;
    }
}

/* Dark mode */
body.dark-mode .footer-info {
    background: rgba(79, 70, 229, 0.1);
}

/* Card VALUTAZIONE - Arancione */
.valutazione-card {
    border-left: 5px solid #f59e0b;
}

.valutazione-card .card-icon {
    filter: drop-shadow(0 4px 8px rgba(245, 158, 11, 0.3));
}

.valutazione-card .card-arrow {
    color: #f59e0b;
}

/* Card VALUTAZIONE - Arancione */
.valutazione-card {
    border-left: 5px solid #f59e0b;
}

.valutazione-card .card-icon {
    filter: drop-shadow(0 4px 8px rgba(245, 158, 11, 0.3));
}

.valutazione-card .card-arrow {
    color: #f59e0b;
}