/**
 * Quiz Concorsi - Public Styles v4.1
 * Design pulito, leggibile, minimale
 * Font: Poppins (forzato con spaziatura corretta)
 */

/* Google Font Poppins */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

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

:root {
    --qc-bg: #f5f5f5;
    --qc-card-bg: #ffffff;
    --qc-text: #333333;
    --qc-text-light: #666666;
    --qc-primary: #2563eb;
    --qc-primary-light: #dbeafe;
    --qc-success: #16a34a;
    --qc-success-light: #dcfce7;
    --qc-error: #dc2626;
    --qc-error-light: #fee2e2;
    --qc-warning: #d97706;
    --qc-warning-light: #fef3c7;
    --qc-border: #e5e5e5;
    --qc-gradient-1: #667eea;
    --qc-gradient-2: #764ba2;
}

/* App Container - Font Poppins forzato con spaziatura corretta */
.qc-app,
.qc-app *,
.qc-app h1,
.qc-app h2,
.qc-app h3,
.qc-app h4,
.qc-app p,
.qc-app span,
.qc-app button,
.qc-app a,
.qc-app input,
.qc-app select,
.qc-app textarea,
.qc-app label,
.qc-app div {
    font-family: 'Poppins', sans-serif !important;
    letter-spacing: normal !important;
    word-spacing: normal !important;
}

.qc-app {
    font-size: 16px;
    line-height: 1.5;
    color: var(--qc-text);
    background: var(--qc-bg);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* ============================================
   HEADER LIBRO - NUOVO DESIGN PROFESSIONALE
   ============================================ */
.qc-book-header {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--qc-border);
    padding: 24px 20px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

/* ============================================
   SEZIONE AGGIORNAMENTI (v4.5.4)
   ============================================ */
.qc-updates-section {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}
.qc-updates-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #bfdbfe;
    border-radius: 12px;
    margin-top: 16px;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
}
.qc-updates-header:hover {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
}
.qc-updates-icon {
    font-size: 18px;
}
.qc-updates-title {
    flex: 1;
    font-weight: 600;
    font-size: 14px;
    color: #1e40af;
}
.qc-updates-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #1e40af;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    padding: 0 6px;
    margin-left: 6px;
}
.qc-updates-arrow {
    color: #1e40af;
    font-size: 16px;
    transition: transform 0.2s;
}
.qc-updates-list {
    border: 1px solid #e2e8f0;
    border-top: none;
    border-radius: 0 0 12px 12px;
    background: #fff;
    padding: 8px 12px;
    max-height: 320px;
    overflow-y: auto;
}
.qc-updates-list::-webkit-scrollbar {
    width: 5px;
}
.qc-updates-list::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 3px;
}
.qc-updates-list::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}
.qc-update-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.2s, opacity 0.3s;
    cursor: pointer;
}
.qc-update-item:last-child {
    border-bottom: none;
}
.qc-update-item:hover {
    background: #f8fafc;
}
.qc-update-item.qc-unread {
    background: #eff6ff;
}
.qc-update-item.qc-unread:hover {
    background: #dbeafe;
}
.qc-update-item.qc-read {
    opacity: 0.65;
}
.qc-update-dot {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #3b82f6;
    margin-top: 5px;
    transition: opacity 0.3s;
}
.qc-update-item.qc-read .qc-update-dot {
    opacity: 0;
}
.qc-update-body {
    flex: 1;
    min-width: 0;
}
.qc-update-date {
    font-size: 11px;
    color: #94a3b8;
    margin-bottom: 3px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.qc-update-badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}
.qc-update-badge.auto {
    background: #dbeafe;
    color: #1e40af;
}
.qc-update-badge.manuale {
    background: #f3e8ff;
    color: #7c3aed;
}
.qc-update-text {
    font-size: 13px;
    color: #1e293b;
    line-height: 1.4;
}
.qc-update-text b {
    font-weight: 700;
}

.qc-header-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    gap: 24px;
    align-items: center;
}

.qc-book-cover {
    flex-shrink: 0;
    position: relative;
}

.qc-book-cover img {
    width: 90px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.qc-book-cover:hover img {
    transform: scale(1.02);
}

.qc-book-cover::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 8px;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
    pointer-events: none;
}

.qc-book-info {
    flex: 1;
    min-width: 0;
}

.qc-publisher-logo {
    flex-shrink: 0;
    margin-left: auto;
    align-self: center;
}

.qc-publisher-logo img {
    height: auto !important;
    width: auto !important;
    max-width: 180px !important;
    max-height: 45px !important;
    object-fit: contain !important;
    opacity: 0.75;
    transition: opacity 0.2s;
}

.qc-publisher-logo img:hover {
    opacity: 1;
}

.qc-book-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--qc-text);
    margin-bottom: 10px;
    line-height: 1.3;
    letter-spacing: -0.02em !important;
}

.qc-book-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 14px;
    color: var(--qc-text-light);
    margin-bottom: 14px;
}

.qc-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: #f1f5f9;
    border-radius: 20px;
    font-weight: 500;
    font-size: 13px;
}

.qc-amazon-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #ff9900 0%, #ffad33 100%);
    color: #000;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(255,153,0,0.3);
    transition: all 0.2s ease;
}

.qc-amazon-btn:hover {
    background: linear-gradient(135deg, #e68a00 0%, #ff9900 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255,153,0,0.4);
}

/* Main */
.qc-main {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Sezioni */
.qc-section {
    margin-bottom: 40px;
}

.qc-section-head {
    margin-bottom: 20px;
}

.qc-section-head h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.qc-section-head p {
    font-size: 14px;
    color: var(--qc-text-light);
}

/* Cards Simulazione */
.qc-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.qc-card {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.qc-card:hover {
    border-color: var(--qc-primary);
    box-shadow: 0 4px 16px rgba(37,99,235,0.1);
    transform: translateY(-1px);
}

.qc-card-sim {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.qc-card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 6px;
}

.qc-card-stats {
    display: flex;
    gap: 16px;
    font-size: 14px;
    color: var(--qc-text-light);
}

.qc-card-score {
    font-size: 13px;
    color: var(--qc-text-light);
    margin-top: 4px;
}

.qc-card-btn {
    padding: 10px 24px;
    background: var(--qc-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-card-btn:hover {
    background: #1d4ed8;
}

.qc-card-btn.qc-btn-secondary {
    background: #475569;
}

.qc-card-btn.qc-btn-secondary:hover {
    background: #334155;
}

/* Cards Materie - Layout Lista Verticale */
.qc-cards-materie {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.qc-card-materia {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    gap: 20px;
}

.qc-card-materia .qc-card-body {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 20px;
}

.qc-card-materia h3 {
    flex: 1;
    font-size: 15px;
    font-weight: 500;
    color: var(--qc-text);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.qc-card-materia .qc-card-count {
    font-size: 13px;
    color: var(--qc-text-light);
    white-space: nowrap;
}

.qc-card-materia .qc-card-btn {
    padding: 8px 20px;
    font-size: 13px;
}

/* Statistiche */
.qc-section-stats {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 24px;
}

.qc-section-stats h2 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.qc-stats-row {
    display: flex;
    justify-content: space-around;
    gap: 20px;
}

.qc-stat-box {
    text-align: center;
}

.qc-stat-num {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--qc-primary);
}

.qc-stat-txt {
    font-size: 13px;
    color: var(--qc-text-light);
}

/* ============================================
   CODICE UTENTE - NUOVO SISTEMA
   ============================================ */
.qc-user-code-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid #bae6fd;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 32px;
    text-align: center;
}

.qc-user-code-header {
    margin-bottom: 16px;
}

.qc-user-code-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #0c4a6e;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.qc-user-code-header p {
    font-size: 13px;
    color: #0369a1;
    line-height: 1.6;
    margin-bottom: 8px;
}

.qc-user-code-header p:last-of-type {
    margin-bottom: 0;
}

.qc-user-code-warning {
    margin-top: 12px !important;
    padding: 10px 14px;
    background: rgba(245, 158, 11, 0.15);
    border-radius: 8px;
    color: #92400e !important;
    font-size: 12px !important;
}

.qc-user-code-main {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.qc-user-code-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.qc-user-code-value {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.15em !important;
    color: #0c4a6e;
    padding: 12px 24px;
    background: #fff;
    border-radius: 12px;
    border: 2px dashed #38bdf8;
    font-family: 'Courier New', monospace !important;
}

.qc-user-code-copy {
    padding: 10px 16px;
    background: #0ea5e9;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.qc-user-code-copy:hover {
    background: #0284c7;
}

.qc-user-code-copy.copied {
    background: #16a34a;
}

.qc-user-code-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.qc-qr-container {
    padding: 10px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.qc-qr-container img {
    display: block;
}

.qc-qr-label {
    font-size: 11px;
    color: #64748b;
    margin: 0;
}

.qc-user-code-recover {
    font-size: 13px;
    color: #0369a1;
}

.qc-user-code-recover a {
    color: #0ea5e9;
    text-decoration: underline;
    cursor: pointer;
}

/* Modal Recupero Codice - STILI FORZATI per evitare override dal tema */
.qc-modal-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: rgba(0,0,0,0.5) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    z-index: 9999 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: all 0.3s !important;
}

.qc-modal-overlay.active {
    opacity: 1 !important;
    visibility: visible !important;
}

.qc-modal {
    background: #ffffff !important;
    border-radius: 16px !important;
    padding: 32px !important;
    max-width: 420px !important;
    width: 90% !important;
    text-align: center !important;
    transform: scale(0.9) !important;
    transition: transform 0.3s !important;
    border: none !important;
    box-shadow: 0 25px 50px rgba(0,0,0,0.25) !important;
}

.qc-modal-overlay.active .qc-modal {
    transform: scale(1) !important;
}

.qc-modal h3 {
    font-size: 20px !important;
    font-weight: 700 !important;
    margin-bottom: 8px !important;
    color: #333333 !important;
    font-family: 'Poppins', sans-serif !important;
    line-height: 1.4 !important;
}

.qc-modal p {
    font-size: 14px !important;
    color: #666666 !important;
    margin-bottom: 20px !important;
    font-family: 'Poppins', sans-serif !important;
    line-height: 1.5 !important;
}

.qc-modal input {
    width: 100% !important;
    padding: 14px 16px !important;
    border: 2px solid #e5e5e5 !important;
    border-radius: 10px !important;
    font-size: 18px !important;
    text-align: center !important;
    letter-spacing: 0.1em !important;
    font-family: 'Courier New', monospace !important;
    text-transform: uppercase !important;
    margin-bottom: 16px !important;
    background: #ffffff !important;
    color: #333333 !important;
    box-sizing: border-box !important;
}

.qc-modal input:focus {
    outline: none !important;
    border-color: #2563eb !important;
}

.qc-modal-btns {
    display: flex !important;
    gap: 12px !important;
    margin-top: 8px !important;
}

.qc-modal-btns button {
    flex: 1 !important;
    padding: 12px 20px !important;
    border-radius: 8px !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s !important;
    font-family: 'Poppins', sans-serif !important;
    line-height: 1.4 !important;
    text-align: center !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.qc-modal-btns .qc-btn-cancel,
.qc-btn-cancel {
    background: #f1f5f9 !important;
    border: none !important;
    color: #333333 !important;
}

.qc-modal-btns .qc-btn-cancel:hover,
.qc-btn-cancel:hover {
    background: #e2e8f0 !important;
    color: #1e293b !important;
}

.qc-modal-btns .qc-btn-confirm,
.qc-btn-confirm {
    background: #2563eb !important;
    border: none !important;
    color: #ffffff !important;
}

.qc-modal-btns .qc-btn-confirm:hover,
.qc-btn-confirm:hover {
    background: #1d4ed8 !important;
    color: #ffffff !important;
}

.qc-modal-error {
    color: var(--qc-error);
    font-size: 13px;
    margin-top: -8px;
    margin-bottom: 12px;
    display: none;
}

.qc-modal-error.show {
    display: block;
}

/* Quiz Container */
.qc-quiz {
    max-width: 700px;
    margin: 0 auto;
}

.qc-quiz-head {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.qc-quiz-info h2 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 2px;
}

.qc-quiz-progress {
    font-size: 14px;
    color: var(--qc-text-light);
}

.qc-quiz-ctrl {
    display: flex;
    align-items: center;
    gap: 12px;
}

.qc-timer {
    padding: 8px 16px;
    border: 2px solid var(--qc-border);
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    font-family: 'Courier New', monospace !important;
}

.qc-timer.warning {
    border-color: var(--qc-warning);
    color: var(--qc-warning);
    background: var(--qc-warning-light);
}

.qc-timer.danger {
    border-color: var(--qc-error);
    color: var(--qc-error);
    background: var(--qc-error-light);
    animation: pulse 1s infinite;
}

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

.qc-btn-close {
    width: 40px;
    height: 40px;
    border: 1px solid var(--qc-border);
    background: var(--qc-card-bg);
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-btn-close:hover {
    background: var(--qc-error);
    border-color: var(--qc-error);
    color: #fff;
}

/* Progress Bar */
.qc-progress {
    height: 6px;
    background: var(--qc-border);
    border-radius: 3px;
    margin-bottom: 20px;
    overflow: hidden;
}

.qc-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--qc-primary), #60a5fa);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Question */
.qc-question {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.qc-q-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--qc-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}

.qc-q-text {
    font-size: 16px;
    font-weight: 700 !important;
    line-height: 1.7;
    margin-bottom: 24px;
    color: var(--qc-text);
}

/* Options */
.qc-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.qc-option {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 16px;
    background: #fafafa;
    border: 2px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-option:hover {
    background: #f0f0f0;
}

.qc-option.selected {
    border-color: var(--qc-primary);
    background: var(--qc-primary-light);
}

.qc-option.correct {
    border-color: var(--qc-success);
    background: var(--qc-success-light);
}

.qc-option.wrong {
    border-color: var(--qc-error);
    background: var(--qc-error-light);
}

.qc-option.disabled {
    cursor: default;
}

.qc-option-letter {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 2px solid var(--qc-border);
    border-radius: 50%;
    font-weight: 700;
    font-size: 13px;
    color: var(--qc-text-light);
    flex-shrink: 0;
    transition: all 0.2s;
}

.qc-option.selected .qc-option-letter {
    background: var(--qc-primary);
    border-color: var(--qc-primary);
    color: #fff;
}

.qc-option.correct .qc-option-letter {
    background: var(--qc-success);
    border-color: var(--qc-success);
    color: #fff;
}

.qc-option.wrong .qc-option-letter {
    background: var(--qc-error);
    border-color: var(--qc-error);
    color: #fff;
}

.qc-option-text {
    flex: 1;
    font-size: 15px;
    padding-top: 4px;
    line-height: 1.5;
}

/* Feedback */
.qc-feedback {
    margin-top: 20px;
    padding: 16px;
    background: #fafafa;
    border-radius: 10px;
    border-left: 4px solid var(--qc-primary);
}

.qc-feedback-result {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.qc-feedback-result .correct {
    color: var(--qc-success);
}

.qc-feedback-result .wrong {
    color: var(--qc-error);
}

.qc-feedback-text {
    font-size: 14px;
    color: var(--qc-text-light);
    line-height: 1.6;
}

/* Navigation */
.qc-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.qc-btn {
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.qc-btn-primary {
    background: var(--qc-primary);
    color: #fff;
}

.qc-btn-primary:hover {
    background: #1d4ed8;
}

.qc-btn-success {
    background: var(--qc-success);
    color: #fff;
}

.qc-btn-success:hover {
    background: #15803d;
}

.qc-btn-outline {
    background: var(--qc-card-bg);
    border: 2px solid var(--qc-border);
    color: var(--qc-text);
}

.qc-btn-outline:hover {
    border-color: var(--qc-primary);
    color: var(--qc-primary);
}

.qc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   RISULTATI - MIGLIORATI
   ============================================ */
.qc-results {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.qc-results-head {
    margin-bottom: 24px;
}

.qc-results-icon {
    font-size: 56px;
    margin-bottom: 12px;
}

.qc-results-head h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.qc-results-sub {
    font-size: 15px;
    color: var(--qc-text-light);
}

.qc-score-card {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 20px;
}

.qc-score-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: conic-gradient(var(--qc-primary) var(--score-deg, 0deg), var(--qc-border) 0deg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
}

.qc-score-circle::before {
    content: '';
    position: absolute;
    width: 112px;
    height: 112px;
    background: var(--qc-card-bg);
    border-radius: 50%;
}

.qc-score-val {
    position: relative;
    z-index: 1;
    font-size: 32px;
    font-weight: 700;
    color: var(--qc-primary);
}

.qc-score-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.qc-score-item {
    text-align: center;
}

.qc-score-num {
    display: block;
    font-size: 32px;
    font-weight: 700;
}

.qc-score-item.correct .qc-score-num { color: var(--qc-success); }
.qc-score-item.wrong .qc-score-num { color: var(--qc-error); }
.qc-score-item.empty .qc-score-num { color: var(--qc-warning); }

.qc-score-item span:last-child {
    font-size: 13px;
    color: var(--qc-text-light);
}

.qc-results-info {
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--qc-text-light);
}

.qc-results-info p {
    margin: 4px 0;
}

/* ============================================
   RIEPILOGO ERRORI - NUOVO
   ============================================ */
.qc-errors-summary {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    text-align: left;
}

.qc-errors-summary h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--qc-error);
    display: flex;
    align-items: center;
    gap: 10px;
}

.qc-errors-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 400px;
    overflow-y: auto;
}

.qc-error-item {
    padding: 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 12px;
    border-left: 4px solid var(--qc-error);
}

.qc-error-question {
    font-size: 14px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 12px;
    line-height: 1.5;
}

.qc-error-answers {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
}

.qc-error-your-answer {
    color: var(--qc-error);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.qc-error-correct-answer {
    color: var(--qc-success);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-weight: 600;
}

.qc-error-explanation {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed #fecaca;
    font-size: 13px;
    color: var(--qc-text-light);
    font-style: italic;
}

.qc-errors-actions {
    margin-top: 20px;
    display: flex;
    gap: 12px;
    justify-content: center;
}

.qc-btn-pdf {
    background: #dc2626;
    color: #fff;
}

.qc-btn-pdf:hover {
    background: #b91c1c;
}

/* Review normale */
.qc-review {
    text-align: left;
    margin-bottom: 24px;
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 16px;
    padding: 24px;
}

.qc-review h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: center;
}

.qc-review-list {
    max-height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.qc-review-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: #fafafa;
    border-radius: 8px;
}

.qc-review-status {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #fff;
    flex-shrink: 0;
}

.qc-review-status.correct { background: var(--qc-success); }
.qc-review-status.wrong { background: var(--qc-error); }
.qc-review-status.empty { background: var(--qc-warning); }

.qc-review-content {
    flex: 1;
}

.qc-review-q {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 2px;
}

.qc-review-a {
    font-size: 12px;
    color: var(--qc-text-light);
}

.qc-results-btns {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ============================================
   CRONOLOGIA E STATISTICHE AVANZATE
   ============================================ */
.qc-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    background: #f1f5f9;
    border-radius: 12px;
    padding: 4px;
}

.qc-tab {
    flex: 1;
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--qc-text-light);
    cursor: pointer;
    transition: all 0.2s;
}

.qc-tab.active {
    background: #fff;
    color: var(--qc-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.qc-tab:hover:not(.active) {
    color: var(--qc-text);
}

.qc-tab-content {
    display: none;
}

.qc-tab-content.active {
    display: block;
}

/* Cronologia */
.qc-history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.qc-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    gap: 16px;
}

.qc-history-info {
    flex: 1;
}

.qc-history-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 4px;
}

.qc-history-meta {
    font-size: 13px;
    color: var(--qc-text-light);
    display: flex;
    gap: 16px;
}

.qc-history-score {
    text-align: right;
}

.qc-history-percentage {
    font-size: 24px;
    font-weight: 700;
}

.qc-history-percentage.passed { color: var(--qc-success); }
.qc-history-percentage.failed { color: var(--qc-error); }

.qc-history-details {
    font-size: 12px;
    color: var(--qc-text-light);
}

/* Grafici statistiche */
.qc-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.qc-stat-card {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.qc-stat-card-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--qc-primary);
    margin-bottom: 4px;
}

.qc-stat-card-label {
    font-size: 13px;
    color: var(--qc-text-light);
}

.qc-progress-chart {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 24px;
}

.qc-progress-chart h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.qc-chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 150px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--qc-border);
    position: relative;
}

.qc-chart-bar {
    flex: 1;
    background: linear-gradient(180deg, var(--qc-primary) 0%, #60a5fa 100%);
    border-radius: 4px 4px 0 0;
    position: relative;
    min-height: 4px;
    transition: height 0.3s ease;
}

.qc-chart-bar-label {
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: var(--qc-text-light);
    white-space: nowrap;
}

/* ============================================
   BANNER SHORTCODE - NUOVO DESIGN WOW
   ============================================ */
.qc-banner {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif !important;
    letter-spacing: normal !important;
    word-spacing: normal !important;
    margin: 32px 0;
}

.qc-banner * {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif !important;
    letter-spacing: normal !important;
    word-spacing: normal !important;
}

.qc-banner-box {
    display: flex;
    gap: 0;
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.04);
    border: 1px solid #e2e8f0;
    position: relative;
}

/* Decorazione laterale */
.qc-banner-box::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.qc-banner-visual {
    position: relative;
    padding: 28px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-width: 160px;
}

.qc-banner-cover {
    position: relative;
    z-index: 2;
}

.qc-banner-cover img {
    width: 110px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.15), 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.qc-banner-box:hover .qc-banner-cover img {
    transform: scale(1.03) rotate(-1deg);
}

/* Decorazione cerchi */
.qc-banner-visual::after {
    content: '';
    position: absolute;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(102,126,234,0.08) 0%, transparent 70%);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.qc-banner-content {
    flex: 1;
    padding: 28px 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.qc-banner-publisher {
    margin-bottom: 12px;
}

.qc-banner-publisher img {
    height: 26px;
    opacity: 0.85;
}

.qc-banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em !important;
    margin-bottom: 14px;
    box-shadow: 0 2px 8px rgba(102,126,234,0.3);
}

.qc-banner-badge::before {
    content: '✨';
    font-size: 12px;
}

.qc-banner-title {
    font-size: 22px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 12px 0;
    line-height: 1.3;
    letter-spacing: -0.02em !important;
}

.qc-banner-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: #64748b;
    margin-bottom: 16px;
}

.qc-banner-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.qc-banner-features {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.qc-banner-feature {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #16a34a;
    font-weight: 500;
}

.qc-banner-feature::before {
    content: '✓';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: #dcfce7;
    border-radius: 50%;
    font-size: 10px;
    font-weight: 700;
}

.qc-banner-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff !important;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none !important;
    box-shadow: 0 4px 14px rgba(37,99,235,0.35);
    transition: all 0.3s ease;
    align-self: flex-start;
}

.qc-banner-cta:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,99,235,0.4);
    color: #fff !important;
    text-decoration: none !important;
}

.qc-banner-cta::after {
    content: '→';
    font-size: 18px;
    transition: transform 0.3s ease;
}

.qc-banner-cta:hover::after {
    transform: translateX(4px);
}

/* Empty State */
.qc-empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--qc-text-light);
}

.qc-empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.qc-empty-state h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 8px;
}

.qc-empty-state p {
    font-size: 14px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (min-width: 600px) {
    .qc-results-btns {
        flex-direction: row;
        justify-content: center;
    }
    
    .qc-errors-actions {
        flex-direction: row;
    }
}

@media (max-width: 768px) {
    .qc-banner-box {
        flex-direction: column;
    }
    
    .qc-banner-visual {
        padding: 24px;
        min-width: auto;
    }
    
    .qc-banner-cover img {
        width: 100px;
    }
    
    .qc-banner-content {
        padding: 24px;
        text-align: center;
    }
    
    .qc-banner-cta {
        align-self: center;
        width: 100%;
        justify-content: center;
    }
    
    .qc-banner-stats,
    .qc-banner-features {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .qc-header-container {
        flex-direction: column;
        text-align: center;
    }
    
    .qc-book-meta {
        justify-content: center;
    }
    
    .qc-publisher-logo {
        justify-content: center;
    }
    
    .qc-card-sim {
        flex-direction: column;
        text-align: center;
    }
    
    .qc-card-materia {
        flex-direction: column;
        align-items: stretch;
        text-align: left;
    }
    
    .qc-card-materia .qc-card-body {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .qc-card-materia h3 {
        white-space: normal;
    }
    
    .qc-card-materia .qc-card-btn {
        width: 100%;
        text-align: center;
        margin-top: 12px;
    }
    
    .qc-quiz-head {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .qc-nav {
        flex-direction: column;
    }
    
    .qc-btn {
        width: 100%;
    }
    
    .qc-stats-row {
        flex-direction: column;
        gap: 16px;
    }
    
    .qc-score-grid {
        flex-direction: column;
        gap: 20px;
    }
    
    .qc-user-code-display {
        flex-direction: column;
    }
    
    .qc-user-code-value {
        font-size: 24px;
    }
    
    .qc-tabs {
        flex-direction: column;
    }
    
    .qc-history-item {
        flex-direction: column;
        text-align: center;
    }
    
    .qc-history-score {
        text-align: center;
    }
}

/* Print styles per PDF errori */
@media print {
    .qc-errors-summary {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .qc-errors-actions {
        display: none;
    }
    
    .qc-error-item {
        page-break-inside: avoid;
    }
}

/* ============================================
   SFIDA GIORNALIERA
   ============================================ */
.qc-daily-challenge {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #f59e0b;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 24px;
}

.qc-daily-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.qc-daily-icon {
    font-size: 40px;
    flex-shrink: 0;
}

.qc-daily-info {
    flex: 1;
}

.qc-daily-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: #92400e;
    margin-bottom: 4px;
}

.qc-daily-info p {
    font-size: 13px;
    color: #a16207;
}

.qc-daily-streak {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    padding: 12px 16px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.qc-streak-flame {
    font-size: 24px;
}

.qc-streak-count {
    font-size: 28px;
    font-weight: 700;
    color: #ea580c;
}

.qc-streak-label {
    font-size: 11px;
    color: #78716c;
}

.qc-daily-progress {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.qc-daily-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.qc-daily-badge.pending {
    background: #fff;
    color: #92400e;
}

.qc-daily-badge.completed {
    background: #16a34a;
    color: #fff;
}

.qc-btn-daily {
    padding: 12px 24px;
    background: #f59e0b;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-btn-daily:hover {
    background: #d97706;
    transform: translateY(-1px);
}

.qc-btn-daily.completed {
    background: #16a34a;
    cursor: default;
}

.qc-btn-daily.completed:hover {
    transform: none;
}

.qc-daily-motivation {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed #f59e0b;
}

.qc-motivation-msg {
    text-align: center;
    font-size: 15px;
    font-weight: 600;
    color: #92400e;
}

/* ============================================
   TAB RIPASSO ERRORI
   ============================================ */
.qc-errors-stats,
.qc-bookmarks-stats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    margin-bottom: 20px;
}

.qc-errors-count,
.qc-bookmarks-count {
    display: flex;
    align-items: center;
    gap: 12px;
}

.qc-errors-num,
.qc-bookmarks-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--qc-error);
}

.qc-bookmarks-num {
    color: #eab308;
}

.qc-errors-label,
.qc-bookmarks-label {
    font-size: 14px;
    color: var(--qc-text-light);
}

.qc-errors-list-container,
.qc-bookmarks-list-container {
    margin-top: 20px;
}

.qc-errors-actions,
.qc-bookmarks-actions {
    margin-bottom: 16px;
}

.qc-btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.qc-errors-preview {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.qc-error-preview-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--qc-error-light);
    border-radius: 10px;
}

.qc-error-preview-text {
    font-size: 14px;
    color: var(--qc-text);
    flex: 1;
}

.qc-error-remove,
.qc-bookmark-remove {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--qc-border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--qc-text-light);
    transition: all 0.2s;
}

.qc-error-remove:hover,
.qc-bookmark-remove:hover {
    background: var(--qc-error);
    color: #fff;
    border-color: var(--qc-error);
}

/* ============================================
   TAB SEGNALIBRI
   ============================================ */
.qc-bookmarks-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.qc-bookmark-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fde68a;
    border-radius: 12px;
    position: relative;
}

.qc-bookmark-text {
    font-size: 14px;
    color: var(--qc-text);
    padding-right: 40px;
}

.qc-bookmark-answer {
    font-size: 13px;
    color: #92400e;
}

.qc-bookmark-item .qc-bookmark-remove {
    position: absolute;
    top: 12px;
    right: 12px;
}

/* Pulsante segnalibro nel quiz */
.qc-q-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.qc-bookmark-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 2px solid #fde68a;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-bookmark-btn:hover {
    background: #fef3c7;
    border-color: #f59e0b;
}

.qc-bookmark-btn.active {
    background: #fef3c7;
    border-color: #f59e0b;
}

.qc-bookmark-icon {
    font-size: 22px;
    color: #f59e0b;
}

/* Wrapper azioni header domanda (v4.6.1) */
.qc-q-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Pulsante segnala errore nel quiz (v4.6.1) */
.qc-report-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--qc-card-bg, #fff);
    border: 2px solid #fecaca;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-report-btn:hover {
    background: #fef2f2;
    border-color: #ef4444;
}

.qc-report-btn.reported {
    background: #fef2f2;
    border-color: #ef4444;
    opacity: 0.5;
    cursor: default;
}

.qc-report-icon {
    font-size: 20px;
}

/* ============================================
   MAPPA COMPETENZE
   ============================================ */
.qc-skills-chart-container {
    display: flex;
    justify-content: center;
    padding: 20px;
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    margin-bottom: 20px;
}

#skills-radar-chart {
    max-width: 100%;
}

.qc-skills-legend {
    display: flex;
    justify-content: center;
    gap: 24px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 10px;
    margin-bottom: 20px;
}

.qc-legend-item {
    font-size: 13px;
    font-weight: 500;
    color: var(--qc-text);
}

.qc-skills-ranking {
    background: var(--qc-card-bg);
    border: 1px solid var(--qc-border);
    border-radius: 12px;
    padding: 20px;
}

.qc-skills-ranking h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--qc-text);
}

.qc-skills-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.qc-skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    transition: all 0.2s;
}

.qc-skill-item.bad {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
}

.qc-skill-item.ok {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.qc-skill-item.good {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.qc-skill-emoji {
    font-size: 20px;
}

.qc-skill-info {
    flex: 1;
}

.qc-skill-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--qc-text);
}

.qc-skill-stats {
    font-size: 12px;
    color: var(--qc-text-light);
}

.qc-skill-percentage {
    font-size: 18px;
    font-weight: 700;
    color: var(--qc-text);
}

.qc-skill-item.bad .qc-skill-percentage {
    color: #dc2626;
}

.qc-skill-item.ok .qc-skill-percentage {
    color: #d97706;
}

.qc-skill-item.good .qc-skill-percentage {
    color: #16a34a;
}

/* ============================================
   RESPONSIVE - NUOVE FUNZIONALITÀ
   ============================================ */
@media (max-width: 600px) {
    .qc-report-btn {
        width: 38px;
        height: 38px;
    }

    .qc-report-icon {
        font-size: 16px;
    }

    .qc-tabs {
        flex-wrap: wrap;
    }

    .qc-tab {
        flex: 0 0 calc(33.33% - 4px);
        padding: 10px 8px;
        font-size: 12px;
    }
    
    .qc-daily-header {
        flex-wrap: wrap;
    }
    
    .qc-daily-streak {
        width: 100%;
        flex-direction: row;
        justify-content: center;
        gap: 8px;
    }
    
    .qc-daily-progress {
        flex-direction: column;
    }
    
    .qc-errors-stats,
    .qc-bookmarks-stats {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .qc-skills-legend {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .qc-q-header {
        flex-wrap: nowrap;
    }
    
    .qc-bookmark-btn {
        width: 38px;
        height: 38px;
    }
    
    .qc-bookmark-icon {
        font-size: 18px;
    }
}

/* ============================================
   SIMULAZIONI RAPIDE E PERSONALIZZATE
   ============================================ */
.qc-sim-subtabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    background: #f1f5f9;
    border-radius: 10px;
    padding: 4px;
}

.qc-sim-subtab {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--qc-text-light);
    cursor: pointer;
    transition: all 0.2s;
}

.qc-sim-subtab.active {
    background: #fff;
    color: var(--qc-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.qc-sim-panel {
    display: none;
}

.qc-sim-panel.active {
    display: block;
}

/* Preset Cards */
.qc-preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.qc-preset-card {
    background: var(--qc-card-bg);
    border: 2px solid var(--qc-border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
}

.qc-preset-card:hover:not(.disabled) {
    border-color: var(--qc-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.15);
}

.qc-preset-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.qc-preset-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.qc-preset-info h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--qc-text);
    margin-bottom: 4px;
}

.qc-preset-info p {
    font-size: 13px;
    color: var(--qc-text-light);
    margin-bottom: 12px;
}

.qc-preset-stats {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.qc-preset-stat {
    font-size: 13px;
    font-weight: 600;
    color: var(--qc-primary);
    background: var(--qc-primary-light);
    padding: 4px 10px;
    border-radius: 20px;
}

.qc-btn-preset {
    width: 100%;
    padding: 10px 16px;
    background: var(--qc-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-btn-preset:hover {
    background: #1d4ed8;
}

.qc-preset-unavailable {
    display: block;
    font-size: 12px;
    color: var(--qc-warning);
    font-weight: 500;
}

.qc-preset-info-box {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: 10px;
    padding: 16px;
}

.qc-preset-info-box p {
    font-size: 13px;
    color: #0369a1;
    margin: 0;
}

/* Form Personalizzata */
.qc-custom-form {
    max-width: 600px;
}

.qc-form-group {
    margin-bottom: 24px;
}

.qc-form-label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 12px;
}

.qc-slider-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.qc-range-slider {
    flex: 1;
    height: 8px;
    background: var(--qc-border);
    border-radius: 4px;
    -webkit-appearance: none;
    appearance: none;
}

.qc-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--qc-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.qc-range-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--qc-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.qc-slider-value {
    min-width: 60px;
    padding: 8px 12px;
    background: var(--qc-primary-light);
    color: var(--qc-primary);
    font-weight: 700;
    font-size: 14px;
    text-align: center;
    border-radius: 8px;
}

.qc-form-hint {
    font-size: 12px;
    color: var(--qc-text-light);
    margin-top: 8px;
}

.qc-tempo-options {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.qc-radio-option,
.qc-checkbox-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--qc-card-bg);
    border: 2px solid var(--qc-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.qc-radio-option:has(input:checked),
.qc-checkbox-option:has(input:checked) {
    border-color: var(--qc-primary);
    background: var(--qc-primary-light);
}

.qc-radio-option input,
.qc-checkbox-option input {
    margin: 0;
}

.qc-radio-option span,
.qc-checkbox-option span {
    font-size: 14px;
    font-weight: 500;
}

.qc-materie-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.qc-select-all {
    grid-column: 1 / -1;
    background: #f0fdf4;
    border-color: #86efac;
}

.qc-materia-check {
    font-size: 13px;
}

.qc-form-actions {
    margin-top: 32px;
}

.qc-btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

@media (max-width: 600px) {
    .qc-preset-grid {
        grid-template-columns: 1fr;
    }
    
    .qc-materie-grid {
        grid-template-columns: 1fr;
    }
    
    .qc-tempo-options {
        flex-direction: column;
    }
}