:root {
    --learning-bg: #f4f7fb;
    --learning-surface: #ffffff;
    --learning-surface-soft: #f8fafc;
    --learning-text: #182033;
    --learning-muted: #667085;
    --learning-border: #d9e2ef;
    --learning-primary: #2563eb;
    --learning-primary-dark: #1d4ed8;
    --learning-primary-soft: #dbeafe;
    --learning-success: #15803d;
    --learning-success-soft: #dcfce7;
    --learning-warning: #a16207;
    --learning-warning-soft: #fef3c7;
    --learning-danger: #b91c1c;
    --learning-danger-soft: #fee2e2;
    --learning-header: #0f172a;
    --learning-sidebar: #111c32;
    --learning-shadow: 0 18px 45px rgba(15, 23, 42, 0.09);
    --learning-radius-large: 22px;
    --learning-radius-medium: 15px;
    --learning-radius-small: 10px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--learning-text);
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 30%),
        linear-gradient(135deg, #eef4ff, var(--learning-bg));
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.auth-pending main,
body.auth-pending .learning-layout {
    visibility: hidden;
    pointer-events: none;
}

body.auth-pending::after {
    content: "Caricamento area didattica…";
    position: fixed;
    inset: 74px 0 0;
    z-index: 100;
    display: grid;
    place-items: center;
    padding: 24px;
    color: var(--learning-muted);
    background: var(--learning-bg);
    font-weight: 800;
}

button,
input,
textarea,
select {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: inherit;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.28);
    outline-offset: 2px;
}

.hidden {
    display: none !important;
}

.learning-header {
    position: sticky;
    top: 0;
    z-index: 90;
    color: #ffffff;
    background: rgba(15, 23, 42, 0.97);
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.17);
    backdrop-filter: blur(14px);
}

.learning-header-inner {
    width: min(1180px, calc(100% - 32px));
    min-height: 74px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.learning-brand {
    border: 0;
    padding: 0;
    color: #ffffff;
    background: transparent;
    font-size: clamp(1.25rem, 3vw, 1.6rem);
    font-weight: 850;
    letter-spacing: -0.025em;
    cursor: pointer;
}

.learning-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 9px;
    flex-wrap: nowrap;
    min-width: 0;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
}

.learning-nav::-webkit-scrollbar { display: none; }

.learning-nav-link,
.learning-logout {
    min-height: 42px;
    padding: 10px 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 11px;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.09);
    font-size: 0.9rem;
    font-weight: 750;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease;
}

.learning-nav-link:hover,
.learning-logout:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.17);
}

.learning-nav-link.current,
.learning-logout {
    background: var(--learning-primary);
}

.learning-page {
    width: min(1120px, calc(100% - 32px));
    margin: 32px auto 72px;
}

.learning-hero {
    position: relative;
    overflow: hidden;
    margin-bottom: 25px;
    padding: clamp(27px, 5vw, 44px);
    border-radius: var(--learning-radius-large);
    color: #ffffff;
    background:
        radial-gradient(circle at top right, rgba(125, 211, 252, 0.25), transparent 31%),
        linear-gradient(135deg, #0f172a, #1e3a8a);
    box-shadow: 0 22px 50px rgba(15, 23, 42, 0.18);
}

.learning-eyebrow {
    margin: 0 0 8px;
    color: #bfdbfe;
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.learning-hero h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.learning-hero-description {
    max-width: 720px;
    margin: 13px 0 0;
    color: #dbeafe;
    line-height: 1.7;
}

.learning-student-email {
    margin-top: 16px;
    color: #bfdbfe;
    font-size: 0.88rem;
    font-weight: 700;
}

.learning-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 30px;
}

.summary-card {
    padding: 18px;
    border: 1px solid var(--learning-border);
    border-radius: var(--learning-radius-medium);
    background: var(--learning-surface);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}

.summary-value {
    display: block;
    color: var(--learning-primary);
    font-size: 1.7rem;
    font-weight: 900;
    line-height: 1;
}

.summary-label {
    display: block;
    margin-top: 7px;
    color: var(--learning-muted);
    font-size: 0.82rem;
    font-weight: 750;
}

.learning-section {
    margin-top: 34px;
}

.section-heading {
    margin-bottom: 17px;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(1.35rem, 3vw, 1.8rem);
    letter-spacing: -0.025em;
}

.section-heading p {
    margin: 7px 0 0;
    color: var(--learning-muted);
    line-height: 1.6;
}

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 17px;
}

.library-card {
    min-width: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--learning-border);
    border-radius: 17px;
    background: var(--learning-surface);
    box-shadow: 0 13px 32px rgba(15, 23, 42, 0.07);
}

.library-card h3 {
    margin: 0;
    font-size: 1.16rem;
    letter-spacing: -0.02em;
}

.library-card p {
    margin: 10px 0 16px;
    color: var(--learning-muted);
    line-height: 1.55;
}

.library-card-meta {
    margin-top: auto;
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
}

.learning-badge {
    width: fit-content;
    padding: 5px 9px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: var(--learning-primary-soft);
    color: var(--learning-primary-dark);
    font-size: 0.69rem;
    font-weight: 900;
    letter-spacing: 0.035em;
    text-transform: uppercase;
}

.learning-badge.lesson {
    color: #0369a1;
    background: #e0f2fe;
}

.learning-badge.test {
    color: #be123c;
    background: #ffe4e6;
}

.learning-badge.complete {
    color: var(--learning-success);
    background: var(--learning-success-soft);
}

.learning-badge.locked {
    color: #475569;
    background: #e2e8f0;
}

.learning-button,
.learning-button-secondary,
.learning-button-danger {
    min-height: 43px;
    padding: 10px 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 0;
    border-radius: 11px;
    font-size: 0.86rem;
    font-weight: 850;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.16s ease, filter 0.16s ease;
}

.learning-button {
    color: #ffffff;
    background: var(--learning-primary);
}

.learning-button-secondary {
    color: var(--learning-primary-dark);
    background: var(--learning-primary-soft);
}

.learning-button-danger {
    color: var(--learning-danger);
    background: var(--learning-danger-soft);
}

.learning-button:hover,
.learning-button-secondary:hover,
.learning-button-danger:hover {
    transform: translateY(-1px);
    filter: brightness(0.98);
}

.learning-button:disabled,
.learning-button-secondary:disabled {
    cursor: not-allowed;
    opacity: 0.56;
    transform: none;
}

.library-card .learning-button,
.library-card .learning-button-secondary {
    margin-top: 16px;
}

.loading-state,
.empty-state,
.error-state {
    padding: 28px;
    border: 1px dashed var(--learning-border);
    border-radius: var(--learning-radius-medium);
    background: rgba(255, 255, 255, 0.75);
    color: var(--learning-muted);
    text-align: center;
    line-height: 1.6;
}

.error-state {
    color: var(--learning-danger);
    border-color: #fca5a5;
    background: #fff7f7;
}

.loading-spinner {
    width: 34px;
    height: 34px;
    margin: 0 auto 14px;
    border: 4px solid #dbeafe;
    border-top-color: var(--learning-primary);
    border-radius: 50%;
    animation: learning-spin 0.85s linear infinite;
}

@keyframes learning-spin {
    to { transform: rotate(360deg); }
}

.progress-track {
    width: 100%;
    height: 11px;
    overflow: hidden;
    border-radius: 999px;
    background: #e5eaf2;
}

.progress-fill {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #2563eb, #38bdf8);
    transition: width 0.25s ease;
}

.progress-label {
    margin-top: 8px;
    color: var(--learning-muted);
    font-size: 0.82rem;
    font-weight: 750;
}

.learning-layout {
    width: min(1320px, calc(100% - 28px));
    margin: 24px auto 64px;
    display: grid;
    grid-template-columns: minmax(250px, 310px) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}

.course-sidebar {
    position: sticky;
    top: 94px;
    max-height: calc(100vh - 116px);
    overflow: auto;
    padding: 18px;
    border-radius: 18px;
    color: #e2e8f0;
    background: var(--learning-sidebar);
    box-shadow: var(--learning-shadow);
}

.sidebar-back {
    display: inline-flex;
    margin-bottom: 16px;
    color: #bfdbfe;
    font-size: 0.82rem;
    font-weight: 800;
    text-decoration: none;
}

.sidebar-title {
    margin: 0;
    color: #ffffff;
    font-size: 1.12rem;
    line-height: 1.35;
}

.sidebar-progress {
    margin: 15px 0 18px;
}

.sidebar-progress .progress-track {
    height: 8px;
    background: rgba(255, 255, 255, 0.13);
}

.course-index {
    display: grid;
    gap: 8px;
}

.course-index-item {
    width: 100%;
    padding: 11px 12px;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 11px;
    color: #dbeafe;
    background: rgba(255, 255, 255, 0.04);
    text-decoration: none;
}

.course-index-item:hover:not(.locked),
.course-index-item.current {
    border-color: rgba(96, 165, 250, 0.48);
    background: rgba(37, 99, 235, 0.2);
}

.course-index-item.locked {
    cursor: not-allowed;
    color: #8290a7;
}

.index-number {
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.75rem;
    font-weight: 900;
}

.course-index-item.completed .index-number {
    color: #bbf7d0;
    background: rgba(34, 197, 94, 0.18);
}

.index-type {
    display: block;
    margin-bottom: 3px;
    color: #93c5fd;
    font-size: 0.64rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.index-title {
    display: block;
    font-size: 0.82rem;
    font-weight: 760;
    line-height: 1.4;
}

.index-subtitle {
    display: block;
    margin-top: 4px;
    color: #b9d7ff;
    font-size: 0.69rem;
    font-weight: 720;
    line-height: 1.35;
}

/* Dieci toni ciclici: la stessa macro-categoria mantiene lo stesso tono. */
.course-index-item[data-category-tone="0"] { --category-rgb: 59, 130, 246; }
.course-index-item[data-category-tone="1"] { --category-rgb: 14, 165, 233; }
.course-index-item[data-category-tone="2"] { --category-rgb: 6, 182, 212; }
.course-index-item[data-category-tone="3"] { --category-rgb: 20, 184, 166; }
.course-index-item[data-category-tone="4"] { --category-rgb: 16, 185, 129; }
.course-index-item[data-category-tone="5"] { --category-rgb: 34, 197, 94; }
.course-index-item[data-category-tone="6"] { --category-rgb: 132, 204, 22; }
.course-index-item[data-category-tone="7"] { --category-rgb: 168, 85, 247; }
.course-index-item[data-category-tone="8"] { --category-rgb: 139, 92, 246; }
.course-index-item[data-category-tone="9"] { --category-rgb: 99, 102, 241; }

.course-index-item[data-category-tone] {
    border-color: rgba(var(--category-rgb), 0.28);
    background: linear-gradient(
        135deg,
        rgba(var(--category-rgb), 0.14),
        rgba(var(--category-rgb), 0.055)
    );
}

.course-index-item[data-category-tone] .index-number {
    color: rgb(var(--category-rgb));
    background: rgba(var(--category-rgb), 0.18);
}

.course-index-item[data-category-tone] .index-type,
.course-index-item[data-category-tone] .index-subtitle {
    color: color-mix(in srgb, rgb(var(--category-rgb)) 58%, #ffffff);
}

.course-index-item[data-category-tone]:hover:not(.locked),
.course-index-item[data-category-tone].current {
    border-color: rgba(var(--category-rgb), 0.62);
    background: rgba(var(--category-rgb), 0.24);
}

.learning-main-card {
    min-width: 0;
    padding: clamp(21px, 4vw, 38px);
    border: 1px solid var(--learning-border);
    border-radius: var(--learning-radius-large);
    background: var(--learning-surface);
    box-shadow: var(--learning-shadow);
}

.content-header {
    margin-bottom: 25px;
}

.content-header h1 {
    margin: 8px 0 0;
    font-size: clamp(1.8rem, 4vw, 2.7rem);
    line-height: 1.12;
    letter-spacing: -0.04em;
}

.content-description {
    margin: 12px 0 0;
    color: var(--learning-muted);
    line-height: 1.7;
}

.course-overview-list {
    display: grid;
    gap: 12px;
    margin-top: 25px;
}

.course-overview-item {
    padding: 15px;
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    gap: 13px;
    align-items: center;
    border: 1px solid var(--learning-border);
    border-radius: 14px;
    background: var(--learning-surface-soft);
}

.course-overview-item.locked {
    opacity: 0.68;
}

.overview-number {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    color: var(--learning-primary-dark);
    background: var(--learning-primary-soft);
    font-weight: 900;
}

.overview-title {
    margin: 0;
    font-size: 1rem;
}

.overview-description {
    margin: 4px 0 0;
    color: var(--learning-muted);
    font-size: 0.82rem;
    line-height: 1.45;
}

.lesson-blocks {
    display: grid;
    gap: 18px;
}

.lesson-block {
    overflow: hidden;
    padding: 20px;
    border: 1px solid var(--learning-border);
    border-radius: 16px;
    background: var(--learning-surface-soft);
}

.lesson-block.required {
    border-left: 4px solid var(--learning-primary);
}

.lesson-block.completed {
    border-color: #86efac;
    background: #f7fff9;
}

.lesson-block h2,
.lesson-block h3 {
    margin: 0 0 11px;
    font-size: 1.15rem;
}

.lesson-block-text {
    color: #344054;
    line-height: 1.75;
    /* Rimuovi o commenta white-space: pre-wrap; */
}

/* Opzionale: Aggiungi queste regoline per abbellire gli elenchi e il grassetto generati dal Markdown */
.lesson-block-text h3 { margin-top: 1.5em; margin-bottom: 0.5em; }
.lesson-block-text ul { padding-left: 1.5em; margin-bottom: 1em; }
.lesson-block-text li { margin-bottom: 0.5em; }

.lesson-media,
.lesson-image,
.lesson-pdf {
    width: 100%;
    max-height: 620px;
    border: 0;
    border-radius: 13px;
    background: #0f172a;
}

.lesson-image {
    object-fit: contain;
    background: #eef2f7;
}

.lesson-pdf {
    min-height: 520px;
    background: #ffffff;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 11px;
}

.image-gallery img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 11px;
    background: #edf2f7;
}

.notice-block {
    color: #854d0e;
    background: #fffbeb;
    border-color: #fcd34d;
}

.confirmation-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.confirmation-row input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--learning-primary);
}

.video-progress-copy {
    margin: 10px 0 0;
    color: var(--learning-muted);
    font-size: 0.8rem;
    font-weight: 700;
}

.content-navigation {
    margin-top: 28px;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px solid var(--learning-border);
}

.navigation-placeholder {
    min-width: 1px;
}

.test-intro,
.test-result-summary {
    padding: 20px;
    border: 1px solid var(--learning-border);
    border-radius: 16px;
    background: var(--learning-surface-soft);
}

.test-result-summary {
    border-color: #86efac;
    background: #f0fdf4;
}

.test-score {
    display: block;
    color: var(--learning-success);
    font-size: 2.1rem;
    font-weight: 950;
}

.test-form {
    display: grid;
    gap: 18px;
}

.test-question {
    padding: 20px;
    border: 1px solid var(--learning-border);
    border-radius: 16px;
    background: var(--learning-surface-soft);
}

.test-question legend {
    width: 100%;
    margin-bottom: 14px;
    color: var(--learning-text);
    font-size: 1rem;
    font-weight: 850;
    line-height: 1.5;
}

.question-meta {
    display: block;
    margin-bottom: 7px;
    color: var(--learning-primary);
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.test-option {
    margin-top: 9px;
    padding: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    border: 1px solid var(--learning-border);
    border-radius: 11px;
    background: #ffffff;
    cursor: pointer;
}

.test-option:hover {
    border-color: #93c5fd;
}

.test-option input {
    margin-top: 3px;
    accent-color: var(--learning-primary);
}

.answer-result {
    margin-top: 13px;
    padding: 13px;
    border-radius: 11px;
    font-size: 0.88rem;
    line-height: 1.55;
}

.answer-result.correct {
    color: var(--learning-success);
    background: var(--learning-success-soft);
}

.answer-result.incorrect {
    color: var(--learning-danger);
    background: var(--learning-danger-soft);
}

.notice-stack {
    position: fixed;
    top: 90px;
    right: 18px;
    z-index: 300;
    width: min(390px, calc(100% - 36px));
    display: grid;
    gap: 10px;
}

.notice-item {
    padding: 14px 15px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid var(--learning-border);
    border-radius: 13px;
    background: #ffffff;
    color: var(--learning-text);
    font-size: 0.9rem;
    font-weight: 720;
    line-height: 1.45;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
}

.notice-item.success {
    color: #166534;
    border-color: #86efac;
    background: #f0fdf4;
}

.notice-item.error {
    color: #991b1b;
    border-color: #fca5a5;
    background: #fef2f2;
}

.notice-close {
    width: 25px;
    height: 25px;
    flex: 0 0 auto;
    border: 0;
    border-radius: 8px;
    color: inherit;
    background: rgba(15, 23, 42, 0.08);
    cursor: pointer;
}

@media (max-width: 940px) {
    .learning-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .learning-layout {
        grid-template-columns: 1fr;
    }

    .course-sidebar {
        position: static;
        max-height: none;
    }
}

@media (max-width: 700px) {
    .learning-header-inner {
        min-height: auto;
        padding: 13px 0;
        align-items: flex-start;
    }

    .learning-nav {
        gap: 6px;
    }

    .learning-nav-link,
    .learning-logout {
        min-height: 38px;
        padding: 9px 11px;
        font-size: 0.8rem;
    }

    .course-overview-item {
        grid-template-columns: 38px minmax(0, 1fr);
    }

    .course-overview-item .learning-button,
    .course-overview-item .learning-button-secondary {
        grid-column: 1 / -1;
    }
}

@media (max-width: 600px) {
    .learning-header-inner {
        flex-direction: column;
    }

    .learning-nav {
        width: 100%;
        justify-content: flex-start;
    }

    .learning-nav-link,
    .learning-logout {
        flex: 0 0 auto;
    }
}

@media (max-width: 560px) {
    .learning-page,
    .learning-layout {
        width: min(100% - 22px, 1320px);
    }

    .learning-summary {
        grid-template-columns: 1fr;
    }

    .content-navigation {
        flex-direction: column;
    }

    .content-navigation a,
    .content-navigation button {
        width: 100%;
    }

    .lesson-pdf {
        min-height: 400px;
    }
}

/* =========================================================
   FASE 3 — TEMI SCURI DISTINTI E NUOVI CONTENUTI
========================================================= */

body.learning-theme-course,
body.learning-theme-lesson,
body.learning-theme-test {
    --learning-bg: #06101c;
    --learning-surface: #0d1d2e;
    --learning-surface-soft: #10243a;
    --learning-text: #edf6ff;
    --learning-muted: #9eb2c8;
    --learning-border: rgba(148, 184, 220, 0.2);
    --learning-header: rgba(4, 13, 24, 0.94);
    --learning-sidebar: #081727;
    --learning-shadow: 0 22px 60px rgba(0, 0, 0, 0.34);
    color: var(--learning-text);
    background:
        radial-gradient(circle at 12% 4%, var(--theme-glow-one), transparent 31%),
        radial-gradient(circle at 88% 18%, var(--theme-glow-two), transparent 27%),
        linear-gradient(145deg, var(--learning-bg), #071321 55%, #040b13);
}

body.learning-theme-course {
    --learning-primary: #3b82f6;
    --learning-primary-dark: #2563eb;
    --learning-primary-soft: rgba(59, 130, 246, 0.16);
    --theme-glow-one: rgba(37, 99, 235, 0.28);
    --theme-glow-two: rgba(14, 165, 233, 0.16);
    --theme-accent: #60a5fa;
    --theme-accent-secondary: #38bdf8;
}

body.learning-theme-lesson {
    --learning-primary: #14b8a6;
    --learning-primary-dark: #0f766e;
    --learning-primary-soft: rgba(20, 184, 166, 0.16);
    --theme-glow-one: rgba(13, 148, 136, 0.25);
    --theme-glow-two: rgba(34, 197, 94, 0.14);
    --theme-accent: #2dd4bf;
    --theme-accent-secondary: #4ade80;
}

body.learning-theme-test {
    --learning-primary: #8b5cf6;
    --learning-primary-dark: #7c3aed;
    --learning-primary-soft: rgba(139, 92, 246, 0.17);
    --theme-glow-one: rgba(124, 58, 237, 0.27);
    --theme-glow-two: rgba(244, 63, 94, 0.13);
    --theme-accent: #a78bfa;
    --theme-accent-secondary: #fb7185;
}

body.learning-theme-course.auth-pending::after,
body.learning-theme-lesson.auth-pending::after,
body.learning-theme-test.auth-pending::after {
    color: var(--learning-muted);
    background: #06101c;
}

body.learning-theme-course .learning-header,
body.learning-theme-lesson .learning-header,
body.learning-theme-test .learning-header {
    background: var(--learning-header);
    border-bottom: 1px solid var(--learning-border);
}

body.learning-theme-course .learning-nav-link.current,
body.learning-theme-course .learning-logout,
body.learning-theme-lesson .learning-nav-link.current,
body.learning-theme-lesson .learning-logout,
body.learning-theme-test .learning-nav-link.current,
body.learning-theme-test .learning-logout {
    background: var(--learning-primary);
}

body.learning-theme-course .learning-main-card,
body.learning-theme-lesson .learning-main-card,
body.learning-theme-test .learning-main-card,
body.learning-theme-course .summary-card,
body.learning-theme-lesson .summary-card,
body.learning-theme-test .summary-card,
body.learning-theme-course .library-card,
body.learning-theme-lesson .library-card,
body.learning-theme-test .library-card,
body.learning-theme-course .loading-state,
body.learning-theme-lesson .loading-state,
body.learning-theme-test .loading-state,
body.learning-theme-course .empty-state,
body.learning-theme-lesson .empty-state,
body.learning-theme-test .empty-state {
    color: var(--learning-text);
    background:
        linear-gradient(145deg, rgba(17, 39, 63, 0.98), rgba(8, 24, 41, 0.98));
    border-color: var(--learning-border);
}

body.learning-theme-course .learning-main-card,
body.learning-theme-lesson .learning-main-card,
body.learning-theme-test .learning-main-card {
    border-color: color-mix(in srgb, var(--theme-accent) 35%, transparent);
}

body.learning-theme-course .course-sidebar,
body.learning-theme-lesson .course-sidebar,
body.learning-theme-test .course-sidebar {
    border: 1px solid var(--learning-border);
    background:
        linear-gradient(160deg, rgba(13, 34, 55, 0.99), rgba(4, 17, 30, 0.99));
}

body.learning-theme-course .learning-hero,
body.learning-theme-lesson .learning-hero,
body.learning-theme-test .learning-hero {
    background:
        radial-gradient(circle at top right, color-mix(in srgb, var(--theme-accent) 26%, transparent), transparent 31%),
        linear-gradient(135deg, #071321, color-mix(in srgb, var(--learning-primary-dark) 52%, #071321));
}

body.learning-theme-course .content-description,
body.learning-theme-lesson .content-description,
body.learning-theme-test .content-description,
body.learning-theme-course .progress-label,
body.learning-theme-lesson .progress-label,
body.learning-theme-test .progress-label,
body.learning-theme-course .section-heading p,
body.learning-theme-lesson .section-heading p,
body.learning-theme-test .section-heading p,
body.learning-theme-course .library-card p,
body.learning-theme-lesson .library-card p,
body.learning-theme-test .library-card p,
body.learning-theme-course .video-progress-copy,
body.learning-theme-lesson .video-progress-copy,
body.learning-theme-test .video-progress-copy {
    color: var(--learning-muted);
}

body.learning-theme-course .progress-track,
body.learning-theme-lesson .progress-track,
body.learning-theme-test .progress-track {
    background: rgba(255, 255, 255, 0.1);
}

body.learning-theme-course .progress-fill,
body.learning-theme-lesson .progress-fill,
body.learning-theme-test .progress-fill {
    background: linear-gradient(90deg, var(--learning-primary), var(--theme-accent-secondary));
}

body.learning-theme-course .learning-badge,
body.learning-theme-lesson .learning-badge,
body.learning-theme-test .learning-badge {
    color: #dbeafe;
    border: 1px solid color-mix(in srgb, var(--theme-accent) 32%, transparent);
    background: var(--learning-primary-soft);
}

body.learning-theme-course .learning-badge.complete,
body.learning-theme-lesson .learning-badge.complete,
body.learning-theme-test .learning-badge.complete {
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, 0.34);
    background: rgba(34, 197, 94, 0.13);
}

.learning-badge.pending {
    color: #fde68a !important;
    border-color: rgba(245, 158, 11, 0.38) !important;
    background: rgba(245, 158, 11, 0.13) !important;
}

.learning-badge.timer {
    color: #e9d5ff !important;
    border-color: rgba(192, 132, 252, 0.36) !important;
    background: rgba(168, 85, 247, 0.14) !important;
}

body.learning-theme-course .learning-button,
body.learning-theme-lesson .learning-button,
body.learning-theme-test .learning-button {
    background: linear-gradient(135deg, var(--learning-primary), var(--learning-primary-dark));
    box-shadow: 0 12px 28px color-mix(in srgb, var(--learning-primary) 28%, transparent);
}

body.learning-theme-course .learning-button-secondary,
body.learning-theme-lesson .learning-button-secondary,
body.learning-theme-test .learning-button-secondary {
    color: #e6f3ff;
    border: 1px solid color-mix(in srgb, var(--theme-accent) 28%, transparent);
    background: var(--learning-primary-soft);
}

body.learning-theme-course .course-index-item,
body.learning-theme-lesson .course-index-item,
body.learning-theme-test .course-index-item {
    color: #dbeafe;
    background: rgba(255, 255, 255, 0.035);
}

body.learning-theme-course .course-index-item:hover:not(.locked),
body.learning-theme-course .course-index-item.current,
body.learning-theme-lesson .course-index-item:hover:not(.locked),
body.learning-theme-lesson .course-index-item.current,
body.learning-theme-test .course-index-item:hover:not(.locked),
body.learning-theme-test .course-index-item.current {
    border-color: color-mix(in srgb, var(--theme-accent) 55%, transparent);
    background: var(--learning-primary-soft);
}

body.learning-theme-course .index-type,
body.learning-theme-lesson .index-type,
body.learning-theme-test .index-type,
body.learning-theme-course .sidebar-back,
body.learning-theme-lesson .sidebar-back,
body.learning-theme-test .sidebar-back {
    color: var(--theme-accent);
}

body.learning-theme-course .course-index-item[data-category-tone],
body.learning-theme-lesson .course-index-item[data-category-tone],
body.learning-theme-test .course-index-item[data-category-tone] {
    border-color: rgba(var(--category-rgb), 0.28);
    background: linear-gradient(
        135deg,
        rgba(var(--category-rgb), 0.14),
        rgba(var(--category-rgb), 0.055)
    );
}

body.learning-theme-course .course-index-item[data-category-tone]:hover:not(.locked),
body.learning-theme-course .course-index-item[data-category-tone].current,
body.learning-theme-lesson .course-index-item[data-category-tone]:hover:not(.locked),
body.learning-theme-lesson .course-index-item[data-category-tone].current,
body.learning-theme-test .course-index-item[data-category-tone]:hover:not(.locked),
body.learning-theme-test .course-index-item[data-category-tone].current {
    border-color: rgba(var(--category-rgb), 0.62);
    background: rgba(var(--category-rgb), 0.24);
}

body.learning-theme-course .course-index-item[data-category-tone] .index-type,
body.learning-theme-course .course-index-item[data-category-tone] .index-subtitle,
body.learning-theme-lesson .course-index-item[data-category-tone] .index-type,
body.learning-theme-lesson .course-index-item[data-category-tone] .index-subtitle,
body.learning-theme-test .course-index-item[data-category-tone] .index-type,
body.learning-theme-test .course-index-item[data-category-tone] .index-subtitle {
    color: color-mix(in srgb, rgb(var(--category-rgb)) 58%, #ffffff);
}

/* Corso: niente lista centrale duplicata, solo introduzione e CTA */

.course-progress-section {
    padding: 18px;
    border: 1px solid var(--learning-border);
    border-radius: 15px;
    background: rgba(2, 12, 22, 0.34);
}

.course-progress-section h2 {
    margin: 0 0 14px;
    font-size: 1.08rem;
}

.course-intro-card {
    overflow: hidden;
    display: grid;
    gap: 20px;
    padding: clamp(20px, 4vw, 30px);
    border: 1px solid color-mix(in srgb, var(--theme-accent) 32%, transparent);
    border-radius: 18px;
    background:
        radial-gradient(circle at top right, color-mix(in srgb, var(--theme-accent) 18%, transparent), transparent 34%),
        rgba(2, 12, 22, 0.4);
}

.course-intro-copy h2,
.course-continue-card h2 {
    margin: 12px 0 0;
    font-size: clamp(1.35rem, 3vw, 1.8rem);
}

.course-intro-media {
    overflow: hidden;
    border: 1px solid var(--learning-border);
    border-radius: 15px;
    background: #020912;
}

.course-intro-media video,
.course-intro-media iframe {
    display: block;
    width: 100%;
    min-height: 380px;
    border: 0;
}

.course-intro-link {
    width: fit-content;
}

.course-continue-card {
    padding: 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    border: 1px solid var(--learning-border);
    border-radius: 17px;
    background: rgba(2, 12, 22, 0.36);
}

.course-continue-action {
    flex: 0 0 auto;
}

/* Lezioni */

body.learning-theme-lesson .lesson-block {
    color: var(--learning-text);
    border-color: var(--learning-border);
    background: rgba(8, 30, 37, 0.64);
}

body.learning-theme-lesson .lesson-block.required {
    border-left-color: var(--theme-accent);
}

body.learning-theme-lesson .lesson-block.completed {
    border-color: rgba(34, 197, 94, 0.42);
    background: rgba(6, 45, 38, 0.52);
}

body.learning-theme-lesson .notice-block {
    color: #fde68a;
    border-color: rgba(245, 158, 11, 0.42);
    background: rgba(69, 45, 8, 0.38);
}

.lesson-block-heading {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.lesson-block-heading h2 {
    margin: 0;
}

.rich-text {
    color: #d7e5f3;
    line-height: 1.75;
    overflow-wrap: anywhere;
}


.content-description.rich-text {
    color: var(--learning-muted);
}

.library-card-description {
    margin: 10px 0 16px;
    color: var(--learning-muted);
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.library-card-description > :first-child {
    margin-top: 0;
}

.library-card-description > :last-child {
    margin-bottom: 0;
}

.library-card-description h1,
.library-card-description h2,
.library-card-description h3,
.library-card-description h4 {
    color: var(--learning-text);
    line-height: 1.3;
}

.library-card-description a {
    color: var(--learning-primary-dark);
    font-weight: 800;
}

.library-card-description ul,
.library-card-description ol {
    padding-left: 1.35rem;
}

.library-card-description code {
    padding: 2px 5px;
    border-radius: 5px;
    background: rgba(15, 23, 42, 0.08);
}

.rich-text > :first-child {
    margin-top: 0;
}

.rich-text > :last-child {
    margin-bottom: 0;
}

.rich-text h1,
.rich-text h2,
.rich-text h3,
.rich-text h4 {
    color: #f5f9ff;
    line-height: 1.3;
}

.rich-text a {
    color: var(--theme-accent);
    font-weight: 800;
}

.rich-text blockquote {
    margin: 16px 0;
    padding: 12px 16px;
    border-left: 4px solid var(--theme-accent);
    border-radius: 0 10px 10px 0;
    background: rgba(255, 255, 255, 0.045);
}

.rich-text code {
    padding: 2px 6px;
    border-radius: 6px;
    color: #e0f2fe;
    background: rgba(2, 8, 16, 0.78);
}

.rich-text pre {
    overflow-x: auto;
    padding: 15px;
    border: 1px solid var(--learning-border);
    border-radius: 12px;
    background: rgba(2, 8, 16, 0.8);
}

.rich-text pre code {
    padding: 0;
    background: transparent;
}

.rich-text table {
    width: 100%;
    margin: 16px 0;
    border-collapse: collapse;
}

.rich-text th,
.rich-text td {
    padding: 9px 11px;
    border: 1px solid var(--learning-border);
    text-align: left;
}

.rich-text th {
    background: rgba(255, 255, 255, 0.06);
}

.lesson-media,
.lesson-image,
.lesson-pdf,
.lesson-embed {
    border: 1px solid var(--learning-border);
    background: #020912;
}

.lesson-embed {
    width: 100%;
    min-height: 520px;
    border-radius: 13px;
}

.embedded-content {
    margin-top: 14px;
}

.embedded-external-link {
    margin-top: 13px;
}

.lesson-resource-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.image-gallery {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.gallery-figure {
    min-width: 0;
    margin: 0;
    overflow: hidden;
    border: 1px solid var(--learning-border);
    border-radius: 13px;
    background: rgba(2, 12, 22, 0.46);
}

.gallery-figure img {
    display: block;
    width: 100%;
    max-height: 520px;
    object-fit: contain;
    background: #07111d;
}

.gallery-figure figcaption {
    padding: 10px 12px;
    color: var(--learning-muted);
    font-size: 0.82rem;
    line-height: 1.5;
}

.legacy-image {
    margin-top: 14px;
}

body.learning-theme-lesson .confirmation-row {
    margin-top: 14px;
    padding: 13px;
    border: 1px solid var(--learning-border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.045);
}

/* Verifiche */

.test-content-header {
    position: relative;
    padding-right: 180px;
}

.test-header-badges {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
}

.test-timer {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 150px;
    padding: 11px 14px;
    display: grid;
    gap: 3px;
    border: 1px solid rgba(167, 139, 250, 0.42);
    border-radius: 13px;
    color: #ede9fe;
    background: rgba(91, 33, 182, 0.22);
    text-align: center;
}

.test-timer span {
    font-size: 0.68rem;
    font-weight: 850;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.test-timer strong {
    font-size: 1.35rem;
    letter-spacing: 0.04em;
}

.test-timer.warning {
    color: #fde68a;
    border-color: rgba(245, 158, 11, 0.48);
    background: rgba(120, 53, 15, 0.32);
}

.test-timer.danger {
    color: #fecaca;
    border-color: rgba(239, 68, 68, 0.52);
    background: rgba(127, 29, 29, 0.36);
    animation: timer-pulse 1.1s ease-in-out infinite;
}

@keyframes timer-pulse {
    50% { transform: scale(1.025); }
}

body.learning-theme-test .test-intro,
body.learning-theme-test .test-result-summary,
body.learning-theme-test .test-question {
    color: var(--learning-text);
    border-color: var(--learning-border);
    background: rgba(29, 18, 56, 0.54);
}

body.learning-theme-test .test-result-summary {
    border-color: rgba(34, 197, 94, 0.42);
    background: rgba(6, 45, 38, 0.48);
}

body.learning-theme-test .pending-review-summary {
    border-color: rgba(245, 158, 11, 0.45);
    background: rgba(79, 48, 8, 0.42);
}

.test-intro-meta {
    margin-top: 16px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.test-question {
    min-inline-size: 0;
}

.test-question legend {
    color: var(--learning-text);
}

.question-rich-text {
    margin-bottom: 15px;
    color: #edf4ff;
    font-size: 1rem;
    line-height: 1.65;
}

.fill-blank-prompt {
    display: block;
}

.fill-blank-copy {
    display: inline;
}

.fill-blank-copy p {
    display: inline;
    margin: 0;
}

.fill-blank-marker {
    display: inline-block;
    margin: 0 7px;
    padding: 1px 7px;
    border-bottom: 2px solid var(--theme-accent);
    color: var(--theme-accent);
    font-weight: 900;
    letter-spacing: 0.08em;
}

body.learning-theme-test .test-option {
    color: #e8f2fc;
    border-color: var(--learning-border);
    background: rgba(3, 12, 24, 0.64);
}

body.learning-theme-test .test-option:hover {
    border-color: var(--theme-accent);
    background: rgba(139, 92, 246, 0.1);
}

body.learning-theme-test .test-option:has(input:checked) {
    border-color: var(--theme-accent);
    background: rgba(139, 92, 246, 0.17);
}

.option-rich-text {
    min-width: 0;
    color: #dce9f7;
}

.option-rich-text p {
    margin: 0;
}

.test-answer-label {
    display: grid;
    gap: 9px;
    color: #e7eff9;
    font-weight: 800;
}

.test-text-input,
.test-open-text {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--learning-border);
    border-radius: 12px;
    color: #edf6ff;
    background: rgba(2, 10, 20, 0.72);
}

.test-open-text {
    min-height: 180px;
    resize: vertical;
}

.test-text-input:focus,
.test-open-text:focus {
    outline: none;
    border-color: var(--theme-accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--theme-accent) 16%, transparent);
}

.test-answer-note {
    color: #d8b4fe;
    font-size: 0.78rem;
    font-weight: 700;
}

.test-submit-button {
    width: 100%;
}

.test-result-dates {
    margin-top: 13px;
    color: var(--learning-muted);
    font-size: 0.78rem;
    line-height: 1.55;
}

.test-results-list {
    margin-top: 20px;
}

.answer-result {
    display: grid;
    gap: 10px;
}

.answer-result.pending {
    color: #fde68a;
    background: rgba(120, 53, 15, 0.33);
}

.answer-result.neutral {
    color: #dbeafe;
    background: rgba(30, 64, 175, 0.18);
}

.answer-result-line {
    display: grid;
    grid-template-columns: minmax(120px, 0.34fr) minmax(0, 1fr);
    gap: 12px;
    align-items: start;
}

.answer-result-line strong {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.answer-result-line .rich-text {
    color: inherit;
    line-height: 1.55;
}

.answer-result-line .rich-text p {
    margin: 0;
}

body.learning-theme-course .notice-item,
body.learning-theme-lesson .notice-item,
body.learning-theme-test .notice-item {
    color: #edf6ff;
    border-color: var(--learning-border);
    background: #0d1f33;
}

body.learning-theme-course .notice-item.success,
body.learning-theme-lesson .notice-item.success,
body.learning-theme-test .notice-item.success {
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, 0.42);
    background: #0d2d24;
}

body.learning-theme-course .notice-item.error,
body.learning-theme-lesson .notice-item.error,
body.learning-theme-test .notice-item.error {
    color: #fecaca;
    border-color: rgba(239, 68, 68, 0.45);
    background: #321923;
}

@media (max-width: 760px) {
    .course-continue-card {
        align-items: stretch;
        flex-direction: column;
    }

    .course-continue-action,
    .course-intro-link {
        width: 100%;
    }

    .course-intro-media video,
    .course-intro-media iframe,
    .lesson-embed {
        min-height: 300px;
    }

    .test-content-header {
        padding-right: 0;
    }

    .test-timer {
        position: static;
        width: 100%;
        margin: 14px 0 0;
    }

    .answer-result-line {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}

@media (max-width: 560px) {
    .lesson-block-heading {
        flex-direction: column;
    }

    .lesson-resource-actions {
        flex-direction: column;
    }

    .lesson-resource-actions > *,
    .embedded-external-link {
        width: 100%;
    }

    .course-intro-media video,
    .course-intro-media iframe,
    .lesson-embed,
    .lesson-pdf {
        min-height: 240px;
    }
}

/* =========================================================
   BETA V5 — AUTOSALVATAGGIO E VERIFICHE NELLE LEZIONI
========================================================= */

.test-autosave-status {
    margin: -4px 0 0;
    padding: 10px 12px;
    border: 1px solid var(--learning-border);
    border-radius: 10px;
    color: var(--learning-muted);
    background: rgba(255, 255, 255, 0.035);
    font-size: 0.76rem;
    font-weight: 750;
    line-height: 1.45;
}

.test-autosave-status.saving {
    color: #dbeafe;
    border-color: rgba(96, 165, 250, 0.36);
}

.test-autosave-status.saved {
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, 0.36);
    background: rgba(34, 197, 94, 0.08);
}

.test-autosave-status.error {
    color: #fecaca;
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.08);
}

.embedded-test-shell {
    margin-top: 16px;
    padding: clamp(14px, 3vw, 20px);
    border: 1px solid rgba(167, 139, 250, 0.35);
    border-radius: 15px;
    background:
        radial-gradient(circle at top right, rgba(139, 92, 246, 0.12), transparent 35%),
        rgba(20, 12, 39, 0.42);
}

.embedded-test-introduction {
    margin-bottom: 16px;
    padding: 15px 16px;
    border: 1px solid rgba(167, 139, 250, 0.34);
    border-radius: 13px;
    background: rgba(139, 92, 246, 0.1);
}

.embedded-test-introduction-label {
    display: block;
    margin-bottom: 7px;
    color: #e9d5ff;
    font-size: .7rem;
    font-weight: 900;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.embedded-test-introduction .content-description {
    margin: 0;
}

.embedded-test-loading {
    padding: 18px;
    border: 1px dashed rgba(167, 139, 250, 0.35);
    border-radius: 12px;
    color: #d8b4fe;
    text-align: center;
}

.embedded-test-meta {
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.embedded-test-timer {
    position: static;
    min-width: 140px;
    padding: 8px 12px;
}

.embedded-test-workspace .test-intro,
.embedded-test-workspace .test-result-summary,
.embedded-test-workspace .test-question {
    color: var(--learning-text);
    border-color: rgba(167, 139, 250, 0.26);
    background: rgba(26, 16, 49, 0.5);
}

.embedded-test-workspace .test-form {
    gap: 14px;
}

.embedded-test-workspace .test-question {
    padding: 16px;
}

.embedded-test-workspace .test-option {
    color: #e8f2fc;
    border-color: var(--learning-border);
    background: rgba(3, 12, 24, 0.58);
}

.embedded-test-workspace .test-option:has(input:checked) {
    border-color: #a78bfa;
    background: rgba(139, 92, 246, 0.15);
}

@media (max-width: 560px) {
    .embedded-test-meta {
        align-items: stretch;
        flex-direction: column;
    }

    .embedded-test-timer {
        width: 100%;
    }
}

/* =========================================================
   PROTEZIONE DETERRENTE DEI CONTENUTI DIDATTICI
========================================================= */

body.va-protected-content .learning-main-card,
body.va-protected-content .learning-hero,
body.va-protected-content .library-card,
body.va-protected-content .course-sidebar {
    -webkit-user-select: none;
    user-select: none;
}

body.va-protected-content input,
body.va-protected-content textarea,
body.va-protected-content select,
body.va-protected-content [contenteditable="true"] {
    -webkit-user-select: text;
    user-select: text;
}

body.va-protected-content img,
body.va-protected-content video,
body.va-protected-content iframe {
    -webkit-user-drag: none;
    user-drag: none;
}

.protected-media-shell {
    position: relative;
    overflow: hidden;
    border-radius: 14px;
    background: #0f172a;
}

.va-capture-shield[hidden] {
    display: none !important;
}

.va-capture-shield {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: grid;
    place-items: center;
    padding: 22px;
    background:
        radial-gradient(circle at top, rgba(37, 99, 235, 0.2), transparent 36%),
        rgba(2, 6, 23, 0.985);
    color: #ffffff;
    text-align: center;
    backdrop-filter: blur(26px);
    -webkit-backdrop-filter: blur(26px);
}

.va-capture-shield-card {
    width: min(520px, 100%);
    padding: clamp(26px, 6vw, 42px);
    border: 1px solid rgba(147, 197, 253, 0.32);
    border-radius: 23px;
    background: rgba(15, 23, 42, 0.88);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.5);
}

.va-capture-shield-icon {
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(147, 197, 253, 0.4);
    border-radius: 18px;
    background: rgba(37, 99, 235, 0.22);
    color: #dbeafe;
    font-weight: 950;
}

.va-capture-shield h2 {
    margin: 0;
    font-size: clamp(1.45rem, 4vw, 2rem);
}

.va-capture-shield p {
    margin: 14px 0 22px;
    color: #cbd5e1;
    line-height: 1.65;
}

.va-capture-shield button {
    min-height: 46px;
    padding: 12px 19px;
    border: 0;
    border-radius: 12px;
    color: #ffffff;
    background: var(--learning-primary);
    font-weight: 850;
    cursor: pointer;
}

body.va-capture-shield-active {
    overflow: hidden;
}

.learning-badge.penalty {
    color: #92400e;
    background: #fef3c7;
}

.test-penalty-note {
    margin: 14px 0 0;
    padding: 12px 14px;
    border: 1px solid #fcd34d;
    border-radius: 11px;
    color: #854d0e;
    background: #fffbeb;
    font-size: 0.86rem;
    font-weight: 700;
    line-height: 1.55;
}

@media print {
    body.va-protected-content * {
        visibility: hidden !important;
    }

    body.va-protected-content::before {
        content: "Contenuto didattico riservato — stampa non disponibile";
        position: fixed;
        inset: 0;
        display: grid;
        place-items: center;
        visibility: visible !important;
        color: #111827;
        background: #ffffff;
        font-size: 20pt;
        font-weight: 800;
        text-align: center;
    }
}


/* Aggiornamento completo 2026-08-04 */
.va-ai-transparency {
    margin-top: 28px;
    padding: 17px 19px;
    border: 1px solid rgba(96, 165, 250, 0.38);
    border-radius: 15px;
    color: #dbeafe;
    background: rgba(30, 64, 175, 0.13);
    line-height: 1.6;
}
.va-ai-transparency strong { color: #ffffff; }
.va-ai-transparency p { margin: 6px 0 0; }
.va-non-progress-block { border-left-color: var(--learning-border) !important; }
.va-non-progress-block::after { content: none !important; }
.va-block-description { margin-top: 15px; padding-top: 14px; border-top: 1px solid var(--learning-border); }
.va-pdf-actions { align-items: center; }
.va-interactive-block { border-style: dashed; border-color: rgba(167, 139, 250, 0.58); }
.va-interactive-placeholder {
    margin: 12px 0 15px;
    padding: 18px;
    border-radius: 13px;
    color: #e9d5ff;
    background: rgba(124, 58, 237, 0.12);
}
.va-interactive-placeholder p { margin: 7px 0 0; color: var(--learning-muted); }


/* Correzione visualizzazione PDF e download immagini — 2026-08-04 */
.lesson-block:fullscreen {
    overflow: auto;
    padding: 20px;
    background: #07111d;
}
.lesson-block:fullscreen .lesson-pdf {
    min-height: calc(100vh - 150px);
}
.lesson-pdf {
    display: block;
    width: 100%;
    min-height: 680px;
    color-scheme: light;
    background: #ffffff;
}
.va-pdf-fallback {
    margin: 10px 0 0;
    color: var(--learning-muted);
    font-size: .84rem;
    line-height: 1.5;
}
.va-pdf-fallback a { color: var(--learning-primary-light); font-weight: 800; }
.va-image-actions {
    padding: 10px 12px 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.va-image-download { width: auto; }
@media (max-width: 560px) {
    .lesson-pdf { min-height: 430px; }
    .va-image-download { width: 100%; }
}

/* Rifiniture v2 — visualizzatore PDF canvas affidabile */
.va-pdf-viewer-placeholder,
.va-pdf-viewer {
    width: 100%;
    min-height: 540px;
    border: 1px solid var(--learning-border);
    border-radius: 14px;
    overflow: hidden;
    background: #e5e7eb;
}
.va-pdf-viewer-placeholder {
    display: grid;
    place-items: center;
    padding: 24px;
    color: #334155;
    background: #f8fafc;
    font-weight: 800;
}
.va-pdf-viewer {
    display: flex;
    flex-direction: column;
}
.va-pdf-toolbar {
    position: relative;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 10px;
    border-bottom: 1px solid #0f2f68;
    background: linear-gradient(135deg, #071b3f, #123b78);
    color: #ffffff;
}
.va-pdf-toolbar .learning-button-secondary {
    width: auto;
    min-height: 38px;
    padding: 8px 11px;
    border: 1px solid rgba(255, 255, 255, .62);
    color: #ffffff;
    background: #1d4ed8;
    box-shadow: 0 5px 14px rgba(2, 8, 23, .22);
}
.va-pdf-toolbar .learning-button-secondary:hover:not(:disabled) {
    color: #071b3f;
    background: #ffffff;
    filter: none;
}
.va-pdf-toolbar .learning-button-secondary:disabled {
    color: rgba(255, 255, 255, .82);
    border-color: rgba(255, 255, 255, .3);
    background: rgba(30, 64, 175, .62);
    opacity: .76;
}
.va-pdf-icon-button {
    min-width: 42px;
    padding-inline: 12px !important;
    font-size: 1.18rem !important;
    line-height: 1;
}
.va-pdf-page-label {
    min-width: 160px;
    text-align: center;
    color: #ffffff;
    font-size: .86rem;
    font-weight: 850;
    text-shadow: 0 1px 2px rgba(0, 0, 0, .45);
}
.va-pdf-canvas-wrap {
    position: relative;
    flex: 1 1 auto;
    min-height: 470px;
    overflow: auto;
    display: grid;
    place-items: start center;
    padding: 16px;
    background: #dbe1e8;
    overscroll-behavior: contain;
}
.va-pdf-canvas {
    display: block;
    max-width: none;
    border-radius: 3px;
    background: #ffffff;
    box-shadow: 0 12px 32px rgba(15, 23, 42, .24);
}
.va-pdf-status {
    align-self: center;
    justify-self: center;
    max-width: 520px;
    padding: 18px;
    border-radius: 12px;
    background: #ffffff;
    color: #334155;
    text-align: center;
    line-height: 1.55;
    box-shadow: 0 10px 24px rgba(15, 23, 42, .12);
}
.va-pdf-status strong,
.va-pdf-status span { display: block; }
.va-pdf-status span { margin-top: 6px; color: #64748b; }
.va-pdf-viewer:fullscreen {
    width: 100vw;
    height: 100vh;
    max-width: none;
    max-height: none;
    border: 0;
    border-radius: 0;
    background: #cbd5e1;
}
.va-pdf-viewer:fullscreen .va-pdf-canvas-wrap { min-height: 0; }
.va-pdf-exit-fullscreen {
    display: none;
}
.va-pdf-block-exit-fullscreen {
    display: none;
}
.va-pdf-viewer:fullscreen .va-pdf-exit-fullscreen {
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 12;
    min-height: 44px;
    padding: 9px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 2px solid #ffffff;
    border-radius: 12px;
    color: #ffffff;
    background: #b91c1c;
    font-size: .86rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(2, 8, 23, .35);
}
.va-pdf-viewer:fullscreen .va-pdf-exit-fullscreen span {
    font-size: 1.25rem;
    line-height: 1;
}
.va-pdf-viewer:fullscreen .va-pdf-exit-fullscreen:hover {
    background: #991b1b;
}
.lesson-block:fullscreen .va-pdf-block-exit-fullscreen {
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 20;
    min-height: 44px;
    padding: 9px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 2px solid #ffffff;
    border-radius: 12px;
    color: #ffffff;
    background: #b91c1c;
    font-size: .86rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(2, 8, 23, .35);
}
.va-pdf-viewer-failed .va-pdf-canvas-wrap { background: #f1f5f9; }

.va-pdf-actions {
    width: 100%;
    margin-top: 14px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
}
.va-pdf-resource-tools {
    display: flex;
    gap: 9px;
    flex-wrap: wrap;
}
.va-pdf-completion-cta {
    max-width: 390px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    text-align: right;
}
.va-pdf-completion-hint {
    max-width: 220px;
    color: var(--learning-muted);
    font-size: .77rem;
    font-weight: 700;
    line-height: 1.4;
}
.va-pdf-complete-button {
    flex: 0 0 auto;
    border-color: rgba(96, 165, 250, .62) !important;
    color: #ffffff !important;
    background: rgba(37, 99, 235, .32) !important;
    box-shadow: 0 8px 18px rgba(2, 8, 23, .2);
}
.va-pdf-complete-button:hover:not(:disabled) {
    background: rgba(37, 99, 235, .54) !important;
}
.va-pdf-complete-button:disabled {
    border-color: rgba(34, 197, 94, .48) !important;
    color: #bbf7d0 !important;
    background: rgba(34, 197, 94, .14) !important;
    opacity: 1;
}
@media (max-width: 620px) {
    .va-pdf-viewer-placeholder,
    .va-pdf-viewer { min-height: 470px; }
    .va-pdf-canvas-wrap { min-height: 390px; padding: 10px; }
    .va-pdf-page-label { order: -1; width: 100%; min-width: 0; }
    .va-pdf-toolbar .learning-button-secondary { flex: 1 1 42%; }
    .va-pdf-toolbar .va-pdf-icon-button { flex: 1 1 28%; }
    .va-pdf-actions { grid-template-columns: 1fr; }
    .va-pdf-resource-tools > * { flex: 1 1 100%; }
    .va-pdf-completion-cta {
        max-width: none;
        align-items: stretch;
        flex-direction: column;
        text-align: left;
    }
    .va-pdf-completion-hint { max-width: none; }
    .va-pdf-complete-button { width: 100%; }
}