/* ============================================
   FRAGEBOGEN + BuHa-OptiMax REIFEGRADMODELL
   ============================================ */

/* ---- Questionnaire Section ---- */
.questionnaire-section {
    padding: 40px 0 80px;
    min-height: calc(100vh - 80px);
}

.questionnaire-header {
    text-align: center;
    margin-bottom: 40px;
}

.questionnaire-header h1 {
    font-size: 2rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.questionnaire-header h1 i {
    color: var(--primary);
}

.questionnaire-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ---- Progress Bar ---- */
.progress-container {
    max-width: 600px;
    margin: 0 auto 32px;
}

.progress-bar {
    height: 8px;
    background: var(--bg-gray);
    border-radius: 100px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 100px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    width: 0%;
}

.progress-text {
    text-align: center;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ---- Questionnaire Card ---- */
.questionnaire-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    position: relative;
    overflow: hidden;
}

.questionnaire-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ---- Question Steps ---- */
.question-step {
    display: none;
    animation: fadeInUp 0.4s ease-out;
}

.question-step.active {
    display: block;
}

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

.question-icon {
    width: 72px;
    height: 72px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.question-icon i {
    font-size: 1.75rem;
    color: var(--primary);
}

.question-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.question-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

/* ---- Answer Buttons ---- */
.answer-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-answer {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    min-width: 160px;
    justify-content: center;
}

.btn-answer:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-yes {
    color: var(--accent);
}

.btn-yes:hover {
    border-color: var(--accent);
    background: var(--reifegrad-3-bg);
}

.btn-no {
    color: var(--danger);
}

.btn-no:hover {
    border-color: var(--danger);
    background: #fef2f2;
}

/* ---- Input Fields ---- */
.input-container {
    max-width: 400px;
    margin: 0 auto 32px;
    position: relative;
}

.input-field {
    width: 100%;
    padding: 16px 80px 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    font-family: inherit;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
    background: var(--bg-white);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

.input-field::placeholder {
    color: var(--text-light);
    font-weight: 400;
}

.input-suffix {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Hide number input spinners */
.input-field::-webkit-outer-spin-button,
.input-field::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.input-field[type=number] {
    -moz-appearance: textfield;
}

/* ---- Navigation Buttons ---- */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

/* ---- Result Screens ---- */
.result-icon {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.result-icon i {
    font-size: 2.5rem;
}

.result-icon.qualified {
    background: var(--reifegrad-3-bg);
}

.result-icon.qualified i {
    color: var(--accent);
}

.result-icon.disqualified {
    background: #fef3c7;
}

.result-icon.disqualified i {
    color: var(--warning);
}

.result-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 24px;
}

.result-content {
    text-align: center;
}

.result-text {
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.7;
}

.cta-box {
    margin: 32px 0 16px;
}

/* ---- Cost Summary ---- */
.cost-summary {
    margin-bottom: 40px;
}

.summary-section {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
}

.summary-section.highlight {
    background: var(--reifegrad-3-bg);
    border-color: rgba(16, 185, 129, 0.2);
}

.summary-section h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    font-size: 0.95rem;
}

.summary-row:last-child {
    border-bottom: none;
}

.summary-row.total {
    padding-top: 16px;
    margin-top: 8px;
    border-top: 2px solid var(--border-color);
    border-bottom: none;
    font-size: 1.05rem;
}

.summary-value {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.summary-value.old-cost {
    color: var(--danger);
    font-size: 1.15rem;
}

.summary-value.new-cost {
    color: var(--accent);
    font-size: 1.15rem;
}

.summary-value.saved {
    color: var(--accent);
    text-decoration: line-through;
    opacity: 0.6;
}

/* ============================================
   REIFEGRADMODELL SECTION
   ============================================ */
.reifegrad-section {
    margin: 48px 0;
}

.reifegrad-header {
    text-align: center;
    margin-bottom: 32px;
}

.reifegrad-header h3 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 8px;
}

.reifegrad-header h3 i {
    color: var(--primary);
}

.reifegrad-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ---- Reifegrad Timeline Cards ---- */
.reifegrad-timeline {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.reifegrad-arrow {
    display: flex;
    align-items: center;
    color: var(--text-light);
    font-size: 1.2rem;
}

.reifegrad-card {
    flex: 1;
    min-width: 150px;
    max-width: 200px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.reifegrad-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.reifegrad-card.active-grade {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.reifegrad-card.reifegrad-1.active-grade {
    border-color: var(--reifegrad-1);
    background: var(--reifegrad-1-bg);
}
.reifegrad-card.reifegrad-2.active-grade {
    border-color: var(--reifegrad-2);
    background: var(--reifegrad-2-bg);
}
.reifegrad-card.reifegrad-3.active-grade {
    border-color: var(--reifegrad-3);
    background: var(--reifegrad-3-bg);
}
.reifegrad-card.reifegrad-4.active-grade {
    border-color: var(--reifegrad-4);
    background: var(--reifegrad-4-bg);
}

.reifegrad-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    background: var(--bg-gray);
    color: var(--text-secondary);
}

.reifegrad-1 .reifegrad-badge { background: var(--reifegrad-1); color: white; }
.reifegrad-2 .reifegrad-badge { background: var(--reifegrad-2); color: white; }
.reifegrad-3 .reifegrad-badge { background: var(--reifegrad-3); color: white; }
.reifegrad-4 .reifegrad-badge { background: var(--reifegrad-4); color: white; }

.reifegrad-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    background: var(--bg-gray);
}

.reifegrad-1 .reifegrad-card-icon { background: rgba(148, 163, 184, 0.15); color: var(--reifegrad-1); }
.reifegrad-2 .reifegrad-card-icon { background: rgba(59, 130, 246, 0.1); color: var(--reifegrad-2); }
.reifegrad-3 .reifegrad-card-icon { background: rgba(16, 185, 129, 0.1); color: var(--reifegrad-3); }
.reifegrad-4 .reifegrad-card-icon { background: rgba(245, 158, 11, 0.1); color: var(--reifegrad-4); }

.reifegrad-card-icon i {
    font-size: 1.25rem;
}

.reifegrad-card h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.reifegrad-short {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.reifegrad-savings-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 12px;
}

.savings-percent {
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1;
}

.reifegrad-1 .savings-percent { color: var(--reifegrad-1); }
.reifegrad-2 .savings-percent { color: var(--reifegrad-2); }
.reifegrad-3 .savings-percent { color: var(--reifegrad-3); }
.reifegrad-4 .savings-percent { color: var(--reifegrad-4); }

.savings-label-small {
    font-size: 0.7rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.reifegrad-cost {
    background: rgba(0, 0, 0, 0.03);
    border-radius: var(--radius-sm);
    padding: 8px;
    margin-top: 4px;
}

.cost-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-light);
    margin-bottom: 2px;
}

.cost-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* ---- Reifegrad Detail Panel ---- */
.reifegrad-detail-panel {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
    transition: var(--transition);
}

.detail-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.detail-badge {
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
    color: white;
    background: var(--reifegrad-1);
    white-space: nowrap;
}

.detail-header h3 {
    font-size: 1.15rem;
    flex: 1;
    min-width: 200px;
}

.detail-savings-overview {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 24px;
}

.detail-savings-box {
    flex: 1;
    min-width: 140px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.detail-savings-box.highlight {
    background: var(--reifegrad-3-bg);
    border-color: rgba(16, 185, 129, 0.2);
}

.detail-savings-box.featured {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: transparent;
}

.detail-savings-box.featured .detail-savings-label {
    color: rgba(255, 255, 255, 0.8);
}

.detail-savings-box.featured .detail-savings-value {
    color: white;
}

.detail-savings-box.ten-year {
    background: linear-gradient(135deg, var(--reifegrad-4), #d97706);
    border-color: transparent;
}

.detail-savings-box.ten-year .detail-savings-label {
    color: rgba(255, 255, 255, 0.85);
}

.detail-savings-box.ten-year .detail-savings-value {
    color: white;
}

.detail-savings-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 600;
    margin-bottom: 4px;
}

.detail-savings-value {
    font-size: 1.35rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.detail-savings-value.old-cost {
    color: var(--danger);
}

.detail-savings-value.new-cost {
    color: var(--accent);
}

.detail-savings-value.savings {
    color: var(--primary);
}

.detail-savings-arrow {
    color: var(--text-light);
    font-size: 1.2rem;
}

.detail-cost-breakdown {
    margin-top: 16px;
}

.detail-cost-breakdown .breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.detail-cost-breakdown .breakdown-row:nth-child(odd) {
    background: var(--bg-light);
}

.detail-cost-breakdown .breakdown-row .label {
    color: var(--text-secondary);
}

.detail-cost-breakdown .breakdown-row .value {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.detail-cost-breakdown .breakdown-row .value.saved {
    color: var(--accent);
}

.detail-cost-breakdown .breakdown-row .value.cost {
    color: var(--text-primary);
}

/* ---- Reifegrad Explanation Toggle ---- */
.reifegrad-explanation-toggle {
    text-align: center;
    margin-bottom: 8px;
}

.btn-explanation-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    background: var(--primary-light);
    color: var(--primary);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.btn-explanation-toggle:hover {
    background: var(--primary);
    color: white;
}

.btn-explanation-toggle .toggle-arrow {
    transition: transform 0.3s ease;
}

.btn-explanation-toggle.open .toggle-arrow {
    transform: rotate(180deg);
}

/* ---- Reifegrad Explanation Section ---- */
.reifegrad-explanation {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 32px;
}

.reifegrad-explanation.open {
    max-height: 5000px;
}

.explanation-header {
    text-align: center;
    padding: 32px 0 24px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 16px;
}

.explanation-header h3 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 4px;
}

.explanation-header h3 i {
    color: var(--primary);
}

.explanation-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ---- Accordion ---- */
.accordion {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 32px;
}

.accordion-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-white);
    transition: var(--transition);
}

.accordion-item:hover {
    box-shadow: var(--shadow-sm);
}

.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 16px 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: var(--transition);
}

.accordion-header:hover {
    background: var(--bg-light);
}

.accordion-header-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.accordion-badge {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 700;
    color: white;
    white-space: nowrap;
}

.reifegrad-1-bg { background: var(--reifegrad-1); }
.reifegrad-2-bg { background: var(--reifegrad-2); }
.reifegrad-3-bg { background: var(--reifegrad-3); }
.reifegrad-4-bg { background: var(--reifegrad-4); }

.accordion-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.accordion-arrow {
    font-size: 0.85rem;
    color: var(--text-light);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.accordion-item.open .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
    padding: 0 20px;
}

.accordion-item.open .accordion-content {
    max-height: 2000px;
    padding: 0 20px 20px;
}

.accordion-intro {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
    font-style: italic;
}

.accordion-block {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 12px;
    border-left: 3px solid var(--border-color);
}

.accordion-block.warning {
    border-left-color: var(--warning);
    background: #fffbeb;
}

.accordion-block.success {
    border-left-color: var(--accent);
    background: var(--reifegrad-3-bg);
}

.accordion-block h5 {
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.accordion-block h5 i {
    font-size: 0.85rem;
    color: var(--primary);
}

.accordion-block.warning h5 i {
    color: var(--warning);
}

.accordion-block.success h5 i {
    color: var(--accent);
}

.accordion-block ul {
    list-style: none;
    padding: 0;
}

.accordion-block ul li {
    padding: 4px 0 4px 20px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    position: relative;
    line-height: 1.5;
}

.accordion-block ul li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 12px;
    width: 6px;
    height: 6px;
    background: var(--text-light);
    border-radius: 50%;
}

.accordion-block.success ul li::before {
    background: var(--accent);
}

.accordion-block.warning ul li::before {
    background: var(--warning);
}

.accordion-note {
    font-size: 0.85rem;
    color: var(--text-light);
    padding: 12px 16px;
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.accordion-note i {
    color: var(--primary);
    margin-top: 2px;
    flex-shrink: 0;
}

/* ---- Visual Roadmap ---- */
.visual-roadmap {
    padding: 32px 0 16px;
    border-top: 2px solid var(--border-color);
}

.visual-roadmap h4 {
    text-align: center;
    margin-bottom: 24px;
    font-size: 1.15rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-primary);
}

.visual-roadmap h4 i {
    color: var(--primary);
}

.roadmap-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.roadmap-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 400px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    transition: var(--transition);
}

.roadmap-step:hover {
    transform: scale(1.02);
}

.roadmap-1 { border-color: var(--reifegrad-1); }
.roadmap-2 { border-color: var(--reifegrad-2); }
.roadmap-3 { border-color: var(--reifegrad-3); }
.roadmap-4 { border-color: var(--reifegrad-4); }

.roadmap-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.roadmap-1 .roadmap-icon { background: var(--reifegrad-1-bg); color: var(--reifegrad-1); }
.roadmap-2 .roadmap-icon { background: var(--reifegrad-2-bg); color: var(--reifegrad-2); }
.roadmap-3 .roadmap-icon { background: var(--reifegrad-3-bg); color: var(--reifegrad-3); }
.roadmap-4 .roadmap-icon { background: var(--reifegrad-4-bg); color: var(--reifegrad-4); }

.roadmap-step strong {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.roadmap-1 strong { color: var(--reifegrad-1); }
.roadmap-2 strong { color: var(--reifegrad-2); }
.roadmap-3 strong { color: var(--reifegrad-3); }
.roadmap-4 strong { color: var(--reifegrad-4); }

.roadmap-step span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.roadmap-step small {
    font-size: 0.8rem;
    color: var(--text-light);
}

.roadmap-connector {
    padding: 6px 0;
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ---- Chart Section ---- */
.chart-comparison {
    margin: 40px 0;
    text-align: center;
}

.chart-comparison h3 {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 1.15rem;
}

.chart-comparison h3 i {
    color: var(--primary);
}

.chart-subtitle {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-top: -12px;
    margin-bottom: 20px;
}

.savings-chart-section {
    background: linear-gradient(135deg, var(--reifegrad-3-bg), var(--reifegrad-2-bg));
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.savings-chart-section h3 i {
    color: var(--accent);
}

.chart-wrapper-results {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 700px;
    margin: 0 auto;
}

/* ---- CTA Section ---- */
.result-cta-section {
    text-align: center;
    padding: 40px 0 0;
    border-top: 2px solid var(--border-color);
}

.result-cta-section h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.result-cta-section p {
    margin-bottom: 24px;
    font-size: 1rem;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 900px) {
    .reifegrad-timeline {
        flex-direction: column;
        align-items: center;
    }

    .reifegrad-arrow {
        transform: rotate(90deg);
    }

    .reifegrad-card {
        max-width: 280px;
        width: 100%;
    }

    .detail-savings-overview {
        flex-direction: column;
    }

    .detail-savings-arrow {
        transform: rotate(90deg);
    }

    .detail-savings-box {
        min-width: auto;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .questionnaire-section {
        padding: 24px 0 60px;
    }

    .questionnaire-card {
        padding: 28px 20px;
        border-radius: var(--radius-lg);
    }

    .questionnaire-header h1 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 8px;
    }

    .question-title {
        font-size: 1.2rem;
    }

    .answer-buttons {
        flex-direction: column;
    }

    .btn-answer {
        width: 100%;
    }

    .result-title {
        font-size: 1.4rem;
    }

    .reifegrad-header h3 {
        font-size: 1.2rem;
    }

    .summary-row {
        font-size: 0.88rem;
    }

    .detail-savings-value {
        font-size: 1.15rem;
    }

    .reifegrad-detail-panel {
        padding: 20px 16px;
    }

    .detail-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .navigation-buttons {
        flex-direction: column-reverse;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
    }

    .accordion-header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
}