/* ==========================================================================
   Workbook Edition: "Mein Kind verstehen" - Digital Book Styling
   ========================================================================== */

:root {
    --wb-page-width: 860px;
    --wb-bg-canvas: #f0f2f1;
    --wb-page-bg: #ffffff;
    --wb-page-shadow: 0 10px 30px rgba(43, 45, 66, 0.08), 0 2px 6px rgba(0,0,0,0.04);
    --wb-gold: #CBAF7A;
    --wb-gold-soft: rgba(203, 175, 122, 0.15);
    --font-serif: "Georgia", "Cambria", "Times New Roman", serif;
    --color-ink-blue: #1d3557;
}

html {
    scroll-behavior: smooth;
}

.workbook-viewport {
    background-color: var(--wb-bg-canvas);
    padding: 40px 15px 100px 15px;
}

.book-page {
    max-width: var(--wb-page-width);
    margin: 0 auto 50px auto;
    background: var(--wb-page-bg);
    border-radius: 6px;
    box-shadow: var(--wb-page-shadow);
    border: 1px solid rgba(203, 175, 122, 0.3);
    padding: 60px 70px;
    position: relative;
    box-sizing: border-box;
}

/* Kopfzeile */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--wb-gold-soft);
    padding-bottom: 14px;
    margin-bottom: 40px;
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-primary-dark, #2F3E36);
}

.page-header .series-title {
    font-weight: 700;
}

.page-header .chapter-tag {
    color: var(--color-text-muted, #777);
}

/* Typografie */
.book-page h1, 
.book-page h2 {
    font-family: var(--font-serif);
    color: var(--color-primary-dark, #2F3E36);
    font-weight: 700;
}

.book-page h1 {
    font-size: 2.1em;
    line-height: 1.25;
    margin-bottom: 15px;
}

.book-page h2 {
    font-size: 1.6em;
    margin: 30px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--wb-gold);
    display: flex;
    align-items: center;
    gap: 10px;
}

.book-page h2::after { 
    display: none; 
}

.book-lead {
    font-size: 1.12em;
    line-height: 1.75;
    color: var(--color-text-muted, #666);
    font-style: italic;
    margin-bottom: 30px;
}

.book-text {
    font-size: 1.05em;
    line-height: 1.8;
    color: var(--color-text-dark, #333);
    margin-bottom: 24px;
}

/* Cover Hero & Aktions-Buttons */
.book-cover-hero {
    display: flex;
    gap: 40px;
    align-items: center;
    margin-bottom: 20px;
}

.book-cover-wrap {
    flex: 0 0 340px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    overflow: visible;
}

.book-cover-wrap img {
    width: 100%;
    height: auto;
    display: block;
    transform: scale(1.22);
    transform-origin: center center;
    filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.18));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.book-cover-wrap img:hover {
    transform: scale(1.26);
    filter: drop-shadow(0 18px 34px rgba(0, 0, 0, 0.22));
}

.wb-hero-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 280px;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 0.85em;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.wb-hero-action-btn.is-active {
    background: #2F3E36;
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 12px rgba(47, 62, 54, 0.15);
}

.wb-hero-action-btn.is-active:hover {
    background: #4E6657;
    transform: translateY(-2px);
}

.wb-hero-action-btn.is-locked {
    background: #FAFBF9;
    color: #777777;
    border: 1.5px dashed #CBAF7A;
}

.wb-hero-action-btn.is-locked:hover {
    border-color: #2F3E36;
    color: #2F3E36;
    background: #ffffff;
}

/* Arbeitsblätter & Formulare */
.worksheet-box {
    background: #fafbfb;
    border: 1px solid var(--wb-gold);
    border-left: 6px solid var(--color-primary, #6F8C7A);
    border-radius: 4px;
    padding: 35px 40px;
    margin-top: 30px;
}

.worksheet-title {
    font-family: var(--font-serif);
    font-size: 1.35em;
    color: var(--color-primary-dark, #2F3E36);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.worksheet-desc {
    font-size: 0.9em;
    color: var(--color-text-muted, #666);
    margin-bottom: 25px;
}

.book-input-line {
    width: 100%;
    border: none;
    border-bottom: 1px solid var(--wb-gold);
    background: transparent;
    padding: 10px 4px;
    font-family: var(--font-primary, sans-serif);
    font-size: 1.05em;
    color: var(--color-ink-blue);
    margin-bottom: 22px;
    border-radius: 0;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.book-input-line:focus {
    outline: none;
    border-bottom: 2px solid var(--color-primary, #6F8C7A);
    background: rgba(111, 140, 122, 0.03);
}

.book-textarea-lined {
    width: 100%;
    border: 1px solid var(--wb-gold-soft);
    background: #ffffff;
    padding: 14px;
    border-radius: 4px;
    font-family: var(--font-primary, sans-serif);
    font-size: 1.02em;
    line-height: 1.6;
    color: var(--color-ink-blue);
    resize: vertical;
    margin-bottom: 20px;
    box-sizing: border-box;
}

.book-textarea-lined:focus {
    outline: none;
    border-color: var(--color-primary, #6F8C7A);
    box-shadow: 0 0 0 1px var(--color-primary, #6F8C7A);
}

.persona-vignette {
    background-color: var(--wb-gold-soft);
    border-radius: 4px;
    padding: 18px 22px;
    margin: 20px 0;
    font-size: 0.95em;
    border-left: 3px solid var(--wb-gold);
}

.persona-vignette strong {
    color: var(--color-primary-dark, #2F3E36);
}

.merksatz-box {
    background-color: #fafbf9;
    border-left: 4px solid var(--wb-gold);
    padding: 16px 20px;
    margin: 25px 0;
    font-size: 0.98em;
    color: var(--color-primary-dark, #2F3E36);
}

svg.wb-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px !important;
    height: 22px !important;
    min-width: 22px !important;
    min-height: 22px !important;
    max-width: 22px !important;
    max-height: 22px !important;
    flex-shrink: 0;
    vertical-align: middle;
    fill: var(--color-primary, #6F8C7A);
}

/* Tabellen & Responsive Wrapper */
.table-responsive-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 20px 0;
}

.book-table,
.worksheet-table,
.context-matrix-table,
.abc-matrix-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.95em;
}

.book-table th,
.worksheet-table th,
.context-matrix-table th,
.abc-matrix-table th {
    background-color: var(--wb-gold-soft);
    color: var(--color-primary-dark, #2F3E36);
    font-family: var(--font-serif);
    font-weight: 700;
    text-align: left;
    padding: 12px 16px;
    border-bottom: 2px solid var(--wb-gold);
}

.book-table td,
.worksheet-table td,
.context-matrix-table td,
.abc-matrix-table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(203, 175, 122, 0.25);
    color: var(--color-text-dark, #333);
    vertical-align: top;
    line-height: 1.6;
}

.book-table tr:nth-child(even) td,
.worksheet-table tr:nth-child(even) td,
.context-matrix-table tr:nth-child(even) td {
    background-color: rgba(250, 251, 251, 0.6);
}

@media (max-width: 768px) {
    .book-table,
    .worksheet-table,
    .context-matrix-table,
    .abc-matrix-table {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-collapse: collapse;
    }

    .book-table th,
    .book-table td,
    .worksheet-table th,
    .worksheet-table td,
    .context-matrix-table th,
    .context-matrix-table td,
    .abc-matrix-table th,
    .abc-matrix-table td {
        min-width: 135px;
        padding: 10px 12px;
        font-size: 0.88em;
        word-break: break-word;
        hyphens: auto;
    }
}

/* Eisberg-Visualisierung */
.iceberg-card-vertical {
    background-color: #fafbfb;
    border: 1px solid var(--wb-gold);
    border-radius: 6px;
    padding: 30px 35px;
    margin: 30px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

.iceberg-level-top-full {
    width: 100%;
    background-color: #ffffff;
    border: 1px solid rgba(203, 175, 122, 0.4);
    border-left: 4px solid var(--wb-gold);
    border-radius: 4px;
    padding: 16px 20px;
    font-size: 0.95em;
    line-height: 1.55;
    box-sizing: border-box;
}

.iceberg-svg-center {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 5px 0;
}

.iceberg-svg-center svg {
    width: 135px;
    height: auto;
    filter: drop-shadow(0 6px 12px rgba(78, 102, 87, 0.14));
}

.iceberg-level-bottom-full {
    width: 100%;
    background-color: rgba(111, 140, 122, 0.08);
    border: 1px solid rgba(111, 140, 122, 0.2);
    border-left: 4px solid var(--color-primary-dark, #2F3E36);
    border-radius: 4px;
    padding: 18px 22px;
    font-size: 0.95em;
    line-height: 1.55;
    box-sizing: border-box;
}

.iceberg-title {
    font-weight: 700;
    display: block;
    margin-bottom: 6px;
    font-family: var(--font-serif);
    font-size: 1.05em;
}

.iceberg-level-top-full .iceberg-title {
    color: #9c7a3c;
}

.iceberg-level-bottom-full .iceberg-title {
    color: var(--color-primary-dark, #2F3E36);
}

/* Interaktiver Stresstopf */
.interactive-stresstopf-layout {
    display: flex;
    gap: 30px;
    align-items: flex-end;
    margin-top: 15px;
}

.stresstopf-checklist {
    flex: 1;
}

.stresstopf-graphic-wrap {
    flex: 0 0 160px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding-bottom: 20px;
}

.stresstopf-graphic-wrap svg {
    width: 100%;
    max-width: 160px;
    height: auto;
    filter: drop-shadow(0 8px 16px rgba(47, 62, 54, 0.15));
}

.stresstopf-liquid {
    fill: #6F8C7A;
    transform-origin: 50% 491.6px;
    transform: scaleY(var(--fill-level, 0.05));
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), fill 0.6s ease;
}

.interactive-stresstopf-layout.is-warning .stresstopf-liquid {
    fill: #d1a856;
}

.interactive-stresstopf-layout.is-danger .stresstopf-liquid {
    fill: #c94a4a;
}

/* Sensorik-Mischpult */
.sensorik-mixer-container {
    background: #ffffff;
    border: 1px solid var(--color-border, #D9E5E0);
    border-radius: 8px;
    padding: 24px;
    margin-top: 20px;
}

.sensorik-chart-wrap {
    width: 100%;
    margin-bottom: 25px;
    background: #FAFBF9;
    border-radius: 6px;
    padding: 15px 10px 5px 10px;
    box-sizing: border-box;
}

.sensorik-curve-svg {
    width: 100%;
    height: 120px;
    overflow: visible;
}

.sensorik-grid-line {
    stroke: #E0E7E3;
    stroke-width: 1;
    stroke-dasharray: 4;
}

.sensorik-center-line {
    stroke: var(--wb-gold, #CBAF7A);
    stroke-width: 1.5;
    opacity: 0.6;
}

.sensorik-curve-path {
    fill: none;
    stroke: var(--color-primary-dark, #2F3E36);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: d 0.25s ease;
}

.sensorik-curve-point {
    fill: var(--color-primary-dark, #2F3E36);
    stroke: #ffffff;
    stroke-width: 2;
    transition: cx 0.25s ease, cy 0.25s ease;
}

.sensorik-slider-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
}

.sensorik-slider-row:last-child {
    margin-bottom: 0;
}

.sensorik-slider-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9em;
    font-weight: 600;
    color: var(--color-primary-dark, #2F3E36);
}

.sensorik-status-badge {
    font-size: 0.85em;
    font-weight: 500;
    color: var(--color-text-muted, #666);
    transition: color 0.2s ease;
}

.sensorik-slider-label-left,
.sensorik-slider-label-right {
    font-size: 0.78em;
    line-height: 1.25;
    color: var(--color-text-muted, #777);
    flex: 0 0 130px;
    max-width: 130px;
    white-space: normal;
    word-break: normal;
}

.sensorik-slider-label-right {
    text-align: right;
}

.sensorik-slider-control {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
}

.sensorik-range-input {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: #E0E7E3;
    border-radius: 3px;
    outline: none;
    margin: 10px 0;
}

.sensorik-range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-primary-dark, #2F3E36);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    transition: transform 0.1s ease;
}

.sensorik-range-input::-webkit-slider-thumb:active {
    transform: scale(1.15);
}

.sensorik-range-input::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-primary-dark, #2F3E36);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

/* Stellschrauben */
.stellschrauben-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin: 18px 0;
}

.stellschraube-card {
    position: relative;
    background: #FAFBF9;
    border: 2px solid #D9E5E0;
    border-radius: 8px;
    padding: 16px 14px;
    cursor: pointer;
    text-align: center;
    box-shadow: 0 4px 0 #D9E5E0;
    transition: all 0.15s ease-in-out;
    user-select: none;
}

.stellschraube-card:hover {
    border-color: #CBAF7A;
    box-shadow: 0 4px 0 #CBAF7A;
    transform: translateY(-2px);
}

.stellschraube-card:active {
    transform: translateY(2px);
    box-shadow: 0 1px 0 #CBAF7A;
}

.stellschraube-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.stellschraube-card .stellschraube-num {
    display: block;
    font-size: 0.75em;
    font-weight: 700;
    color: #6F8C7A;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.stellschraube-card .stellschraube-title {
    display: block;
    font-size: 0.95em;
    font-weight: 700;
    color: #2F3E36;
}

.stellschraube-card.is-active {
    background: #2F3E36;
    border-color: #2F3E36;
    box-shadow: 0 0 0 transparent;
    transform: translateY(4px);
}

.stellschraube-card.is-active .stellschraube-num {
    color: #CBAF7A;
}

.stellschraube-card.is-active .stellschraube-title {
    color: #ffffff;
}

.stellschraube-action-drawer {
    display: none;
    background: #ffffff;
    border: 1.5px solid #CBAF7A;
    border-radius: 8px;
    padding: 20px;
    margin-top: 15px;
    animation: drawerSlideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.stellschraube-action-drawer.is-visible {
    display: block;
}

@keyframes drawerSlideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Eltern-Akku */
.eltern-akku-header-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #ffffff;
    border: 1.5px solid #D9E5E0;
    border-radius: 8px;
    padding: 16px 20px;
    margin: 20px 0 25px 0;
    gap: 20px;
}

.eltern-akku-info {
    flex: 1;
}

.eltern-akku-label {
    font-size: 0.8em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6F8C7A;
    margin-bottom: 2px;
}

.eltern-akku-status-text {
    font-size: 1.05em;
    font-weight: 700;
    color: #2F3E36;
}

.eltern-akku-visual {
    display: flex;
    align-items: center;
    gap: 4px;
}

.battery-shell {
    width: 64px;
    height: 32px;
    border: 2.5px solid #2F3E36;
    border-radius: 6px;
    padding: 3px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
}

.battery-pole {
    width: 4px;
    height: 12px;
    background: #2F3E36;
    border-radius: 0 2px 2px 0;
}

.battery-level {
    height: 100%;
    width: var(--battery-pct, 100%);
    background: #6F8C7A;
    border-radius: 3px;
    transition: width 0.4s ease, background-color 0.4s ease;
}

.eltern-akku-header-card.is-warning .battery-level {
    background: #d1a856;
}

.eltern-akku-header-card.is-danger .battery-level {
    background: #c94a4a;
}

.eltern-akku-header-card.is-recharged .battery-level {
    background: #4E6657;
    box-shadow: 0 0 8px rgba(111, 140, 122, 0.6);
}

/* Inhaltsverzeichnis & Deckblätter */
.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
    margin-top: 15px;
}

.toc-item {
    display: flex;
    flex-direction: column;
    background: #FAFBF9;
    border: 1px solid #D9E5E0;
    border-radius: 6px;
    padding: 12px 14px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.toc-item:hover {
    border-color: #CBAF7A;
    background: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(47, 62, 54, 0.08);
}

.toc-item strong {
    color: #2F3E36;
    font-size: 0.95em;
    margin-bottom: 2px;
}

.toc-item span {
    font-size: 0.85em;
    color: #666;
}

.toc-section-divider {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 15px 0 5px 0;
    font-size: 0.75em;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #6F8C7A;
}

.toc-section-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #D9E5E0;
}

.toc-item-tool {
    background: linear-gradient(135deg, #FAFBF9 0%, #F5F1E8 100%);
    border: 1.5px solid #CBAF7A;
    position: relative;
    overflow: hidden;
}

.toc-item-tool:hover {
    border-color: #2F3E36;
    background: #ffffff;
    box-shadow: 0 4px 14px rgba(203, 175, 122, 0.25);
}

.toc-item-tool strong {
    color: #2F3E36;
}

.toc-tool-badge {
    display: inline-block;
    background: #CBAF7A;
    color: #2F3E36;
    font-size: 0.7em;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 6px;
    border-radius: 4px;
    width: fit-content;
    margin-bottom: 4px;
}

.book-page.module-cover {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 520px;
    background: #FAFBF9;
    border: 2px solid #CBAF7A;
    position: relative;
    padding: 60px 40px;
    box-sizing: border-box;
}

.module-cover-badge {
    display: inline-block;
    background: #6F8C7A;
    color: #ffffff;
    font-size: 0.85em;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.module-cover-title {
    font-size: 1.85em;
    color: #2F3E36;
    margin: 0 0 15px 0;
    line-height: 1.3;
    max-width: 600px;
}

.module-cover-lead {
    font-size: 1.05em;
    line-height: 1.6;
    color: #555;
    max-width: 540px;
    margin: 0 0 35px 0;
}

.module-start-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #2F3E36;
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95em;
    padding: 12px 28px;
    border-radius: 6px;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.module-start-btn:hover {
    background: #4E6657;
    transform: translateY(-2px);
}

/* SOS-Workflow */
.sos-stepper-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin: 25px 0 20px 0;
}

.sos-step-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #FAFBF9;
    border: 2px solid #D9E5E0;
    border-radius: 8px;
    padding: 14px 16px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
    box-shadow: 0 2px 0 #D9E5E0;
    user-select: none;
}

.sos-step-btn:hover {
    border-color: #CBAF7A;
    transform: translateY(-2px);
}

.sos-step-btn.is-active {
    background: #2F3E36;
    border-color: #2F3E36;
    box-shadow: 0 0 0 transparent;
    transform: translateY(2px);
}

.sos-step-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #6F8C7A;
    color: #ffffff;
    font-size: 0.85em;
    font-weight: 700;
}

.sos-step-btn.is-active .sos-step-badge {
    background: #CBAF7A;
    color: #2F3E36;
}

.sos-step-title {
    font-size: 0.9em;
    font-weight: 700;
    color: #2F3E36;
}

.sos-step-btn.is-active .sos-step-title {
    color: #ffffff;
}

.sos-step-panel {
    display: none;
    background: #ffffff;
    border: 1.5px solid #D9E5E0;
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 25px;
    animation: sosFadeIn 0.25s ease-out forwards;
}

.sos-step-panel.is-active {
    display: block;
}

@keyframes sosFadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.breathing-pacing-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #FAFBF9;
    border-radius: 8px;
    padding: 30px 20px;
    margin-top: 20px;
    border: 1px solid #D9E5E0;
    text-align: center;
}

.breathing-circle-outer {
    position: relative;
    width: 140px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.breathing-circle-anim {
    position: absolute;
    width: 100px;
    height: 100px;
    background: rgba(111, 140, 122, 0.25);
    border: 2px solid #6F8C7A;
    border-radius: 50%;
    animation: breathingCycle 10s infinite ease-in-out;
}

.breathing-text-indicator {
    position: relative;
    font-size: 0.85em;
    font-weight: 700;
    color: #2F3E36;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

@keyframes breathingCycle {
    0% { transform: scale(0.85); background: rgba(111, 140, 122, 0.2); }
    40% { transform: scale(1.35); background: rgba(203, 175, 122, 0.35); }
    100% { transform: scale(0.85); background: rgba(111, 140, 122, 0.2); }
}

/* Navigation & Widgets */
.wb-reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: linear-gradient(90deg, #6F8C7A, #CBAF7A);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

.wb-bookmark-ribbon {
    position: fixed;
    top: 0;
    right: 40px;
    width: 36px;
    height: 52px;
    background: #CBAF7A;
    z-index: 9998;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, background-color 0.2s ease;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 80%, 0 100%);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 8px;
}

.wb-bookmark-ribbon:hover {
    transform: translateY(4px);
    background: #d8be8c;
}

.wb-bookmark-ribbon svg {
    fill: #2F3E36;
    transition: fill 0.2s ease;
}

.wb-bookmark-ribbon.is-saved {
    background: #2F3E36;
}

.wb-bookmark-ribbon.is-saved svg {
    fill: #CBAF7A;
}

.wb-bookmark-toast {
    position: fixed;
    top: 60px;
    right: 40px;
    background: #2F3E36;
    color: #ffffff;
    font-size: 0.85em;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.wb-bookmark-toast.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.wb-toast-actions {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.wb-toast-btn {
    background: #4E6657;
    color: #ffffff;
    border: 1px solid #CBAF7A;
    border-radius: 4px;
    padding: 5px 10px;
    font-size: 0.8em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.wb-toast-btn:hover {
    background: #CBAF7A;
    color: #2F3E36;
}

.wb-back-to-toc-btn {
    position: fixed;
    bottom: 75px;
    right: 25px;
    background: #ffffff;
    color: #2F3E36;
    border: 1.5px solid #D9E5E0;
    border-radius: 30px;
    padding: 10px 18px;
    font-size: 0.85em;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(47, 62, 54, 0.12);
    z-index: 9997;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: all 0.25s ease;
}

.wb-back-to-toc-btn.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.wb-back-to-toc-btn:hover {
    background: #FAFBF9;
    border-color: #CBAF7A;
    color: #2F3E36;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(47, 62, 54, 0.18);
}

.wb-back-to-toc-btn svg {
    fill: #6F8C7A;
}

.author-signature-block {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--wb-gold-soft);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
}

.author-signature-salutation {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.1em;
    color: var(--color-primary-dark, #2F3E36);
    margin-bottom: 2px;
}

.author-signature-img {
    max-width: 190px;
    height: auto;
    display: block;
    margin: 4px 0 6px 0;
    filter: drop-shadow(0 1px 2px rgba(29, 53, 87, 0.12));
}

.author-signature-role {
    font-size: 0.82em;
    color: var(--color-text-muted, #777);
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Im Web-Browser ausgeblendet */
.wb-print-footer {
    display: none;
}

/* Responsive Breakpoints */
@media (max-width: 860px) {
    .book-page {
        padding: 35px 22px;
        margin-bottom: 30px;
    }
    .book-cover-hero {
        flex-direction: column;
        text-align: center;
        gap: 25px;
    }
    .book-cover-wrap {
        flex: 0 0 auto;
        max-width: 260px;
        margin: 20px auto 10px auto;
    }
    .book-cover-wrap img {
        transform: scale(1.15);
    }
    .worksheet-box {
        padding: 22px 18px;
    }
}

@media (max-width: 768px) {
    .interactive-stresstopf-layout {
        flex-direction: column;
        align-items: center;
    }
    .stresstopf-checklist {
        width: 100%;
    }
    .stresstopf-graphic-wrap {
        margin-top: 20px;
    }
    .iceberg-card-vertical {
        padding: 20px 15px;
        gap: 15px;
    }
    .iceberg-svg-center svg {
        width: 110px;
    }
    .wb-back-to-toc-btn {
        bottom: calc(75px + env(safe-area-inset-bottom, 0px));
        right: 15px;
        padding: 8px 14px;
        font-size: 0.8em;
    }
}

@media (max-width: 600px) {
    .author-signature-block {
        align-items: flex-start;
        text-align: left;
    }
    .eltern-akku-header-card {
        flex-direction: column;
        align-items: flex-start;
    }
    .eltern-akku-visual {
        align-self: flex-end;
    }
    .sensorik-slider-label-left,
    .sensorik-slider-label-right {
        display: none;
    }
    .wb-bookmark-ribbon {
        right: 15px;
        width: 30px;
        height: 44px;
    }
    .wb-bookmark-toast {
        right: 15px;
        left: 15px;
        text-align: center;
    }
    .wb-toast-actions {
        justify-content: center;
    }
    .breathing-circle-outer {
        width: 120px;
        height: 120px;
    }
    .breathing-circle-anim {
        width: 85px;
        height: 85px;
    }
}

/* ==========================================================================
   Kopierschutz & Druck-Stylesheet (@media print)
   ========================================================================== */

@media print {
    @page {
        size: A4 portrait;
        margin: 15mm 15mm 20mm 15mm;
    }

    /* 1. Alles ausblenden: Web-UI, Header, Footer und ALLE Buchkapitel */
    header,
    footer,
    nav,
    .wb-reading-progress-bar,
    .wb-bookmark-ribbon,
    .wb-bookmark-toast,
    .wb-back-to-toc-btn,
    .wb-hero-action-btn,
    .module-start-btn,
    .toc-item-tool,
    .toc-section-divider,
    .sos-stepper-nav,
    .btn,
    button,
    .book-page,
    .page-header,
    .book-cover-hero,
    .module-cover {
        display: none !important;
    }

    body,
    .workbook-viewport {
        background: #ffffff !important;
        padding: 0 !important;
        margin: 0 !important;
        color: #111111 !important;
        font-size: 10pt !important;
        line-height: 1.45 !important;
    }

    /* 2. Ausschließlich Modul-7-Artikel und nur Arbeitsblatt 7.1 sichtbar machen */
    #modul-7-content {
        display: block !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 !important;
        max-width: 100% !important;
        width: 100% !important;
    }

    #modul-7-content > * {
        display: none !important;
    }

    #modul-7-content > #arbeitsblatt-7-1 {
        display: block !important;
        background: #ffffff !important;
        border: 1.5pt solid #2F3E36 !important;
        border-left: 6pt solid #2F3E36 !important;
        padding: 20px !important;
        margin: 0 !important;
        box-shadow: none !important;
        page-break-inside: avoid !important;
    }

    /* Eingabefelder mit vollem Kontrast für Druck & Notizen */
    .book-input-line {
        border-bottom: 1pt solid #2F3E36 !important;
        color: #1d3557 !important;
        font-weight: 600 !important;
        background: transparent !important;
    }

    .book-textarea-lined {
        border: 1pt solid #999999 !important;
        color: #1d3557 !important;
        font-weight: 600 !important;
        background: transparent !important;
        min-height: 75px !important;
    }

    /* 3. Druck-Wasserzeichen & Copyright-Fußzeile */
    .wb-print-footer {
        display: block !important;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        text-align: center;
        font-size: 7.5pt;
        color: #666666;
        border-top: 1px solid #cccccc;
        padding-top: 6px;
        font-family: sans-serif;
    }

    /* 4. Vollständige Sperre für unbezahlte Accounts */
    body.is-unpaid-version * {
        display: none !important;
    }

    body.is-unpaid-version::before {
        content: "Der PDF-Export und Druck des Handbuchs ist in der digitalen Ausgabe gesperrt.";
        display: block !important;
        font-family: sans-serif;
        font-size: 14pt;
        text-align: center;
        padding: 60mm 20mm;
        color: #2F3E36;
    }
}