/* ===========================================
   TAXGOAT CALCULATOR STYLES
   Version: 1.0
   Modulares CSS für alle Rechner-Seiten
   =========================================== */

/* ===========================================
   CALCULATOR LAYOUT
   =========================================== */
.calculator-page {
    display: flex;
    min-height: 100vh;
    padding-top: 65px; /* Space for fixed header */
}

/* ===========================================
   SIDEBAR - Fixed Left Navigation (angedockt an Header)
   =========================================== */
.calculator-sidebar {
    position: fixed;
    top: 65px; /* Directly below fixed navbar */
    left: 0;
    width: 280px;
    height: calc(100vh - 65px);
    background: var(--bg-white);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    z-index: 100; /* Below header (1000), above content */
    padding: 1.5rem 0;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Category Groups */
.sidebar-category {
    margin-bottom: 0.5rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
}

.category-header:hover {
    background: var(--bg-body);
}

.category-header.active {
    background: var(--primary-light);
    border-left-color: var(--primary);
    color: var(--primary-dark);
}

.category-icon {
    font-size: 1.25rem;
    width: 28px;
    text-align: center;
}

.category-toggle {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.category-header.expanded .category-toggle {
    transform: rotate(180deg);
}

/* Calculator Links */
.category-links {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.category-links.expanded {
    max-height: 500px;
}

.calc-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem 0.65rem 3.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
}

.calc-link:hover {
    background: var(--bg-body);
    color: var(--primary);
}

.calc-link.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-left-color: var(--primary);
    font-weight: 500;
}

.calc-link-icon {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Coming Soon Badge */
.coming-soon-badge {
    font-size: 0.65rem;
    background: var(--accent-light);
    color: var(--accent);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    margin-left: auto;
    font-weight: 600;
}

/* ===========================================
   MAIN CONTENT AREA
   =========================================== */
.calculator-main {
    flex: 1;
    margin-left: 280px; /* Space for fixed sidebar */
    padding: 2rem 3rem;
    background: var(--bg-body);
    min-height: calc(100vh - 65px);
}

/* Page Header */
.calc-page-header {
    margin-bottom: 2rem;
}

.calc-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.calc-breadcrumb a {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.calc-breadcrumb a:hover {
    color: var(--primary);
}

.calc-breadcrumb .separator {
    color: var(--text-light);
}

.calc-page-header h1 {
    font-size: 2rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.calc-page-header .subtitle {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ===========================================
   CALCULATOR CARD
   =========================================== */
.calculator-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 2rem;
}

.calculator-card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 1.5rem 2rem;
    color: white;
}

.calculator-card-header h2 {
    font-size: 1.25rem;
    color: white;
    margin-bottom: 0.25rem;
}

.calculator-card-header p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.calculator-card-body {
    padding: 2rem;
}

/* ===========================================
   FORM ELEMENTS
   =========================================== */
.calc-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.calc-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.calc-form-group label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calc-form-group label .info-icon {
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: help;
}

.calc-input {
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-main);
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.calc-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.calc-input::placeholder {
    color: var(--text-light);
}

/* Input with suffix (€, %, etc.) */
.input-with-suffix {
    position: relative;
    display: flex;
    width: 100%;
}

.input-with-suffix .calc-input {
    flex: 1;
    width: 100%;
    padding-right: 3rem;
}

.input-suffix {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-weight: 500;
    pointer-events: none;
    z-index: 1;
}

/* Select Dropdown */
.calc-select {
    padding: 0.875rem 2.5rem 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-main);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    transition: var(--transition-fast);
}

.calc-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

/* Toggle/Switch */
.calc-toggle-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.calc-toggle-btn {
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.calc-toggle-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.calc-toggle-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ===========================================
   RESULTS SECTION
   =========================================== */
.calc-results {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border);
}

.calc-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.calc-results-header h3 {
    font-size: 1.15rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calc-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Result Card */
.result-card {
    background: var(--bg-body);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    border: 1px solid var(--border);
    transition: var(--transition-fast);
}

.result-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.result-card.highlight {
    background: linear-gradient(135deg, var(--primary-light) 0%, white 100%);
    border-color: var(--primary);
}

.result-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.result-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-main);
    font-family: var(--font-display);
}

.result-card.highlight .result-value {
    color: var(--primary-dark);
}

.result-sublabel {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ===========================================
   INFO BOX
   =========================================== */
.calc-info-box {
    background: var(--accent-light);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-top: 1.5rem;
}

.calc-info-box h4 {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calc-info-box p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.calc-info-box.success {
    background: var(--primary-light);
    border-left-color: var(--primary);
}

.calc-info-box.warning {
    background: #FEF3C7;
    border-left-color: #F59E0B;
}

/* ===========================================
   CALCULATOR OVERVIEW PAGE (Index)
   =========================================== */
.calc-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.calc-category-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.calc-category-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 1.5rem;
    color: white;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.calc-category-header .cat-icon {
    font-size: 2.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.75rem;
    border-radius: var(--radius-md);
}

.calc-category-header h3 {
    font-size: 1.25rem;
    color: white;
}

.calc-category-header p {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

.calc-category-body {
    padding: 1.5rem;
}

.calc-category-body ul {
    list-style: none;
}

.calc-category-body li {
    margin-bottom: 0.75rem;
}

.calc-category-body li:last-child {
    margin-bottom: 0;
}

.calc-category-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-body);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition-fast);
}

.calc-category-link:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
    transform: translateX(4px);
}

.calc-category-link .link-icon {
    font-size: 1.1rem;
}

.calc-category-link .link-arrow {
    margin-left: auto;
    color: var(--text-light);
}

/* ===========================================
   CHART CONTAINER (for future visualizations)
   =========================================== */
.calc-chart-container {
    background: var(--bg-body);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 1.5rem;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calc-chart-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.calc-chart-placeholder .chart-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    opacity: 0.5;
}

/* ===========================================
   COMPARISON TABLE
   =========================================== */
.calc-comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

.calc-comparison-table th,
.calc-comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.calc-comparison-table th {
    background: var(--bg-body);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calc-comparison-table td {
    font-size: 0.95rem;
    color: var(--text-main);
}

.calc-comparison-table tr:hover td {
    background: var(--bg-body);
}

.calc-comparison-table .highlight-row td {
    background: var(--primary-light);
    font-weight: 600;
}

/* ===========================================
   ACTION BUTTONS
   =========================================== */
.calc-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.calc-btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calc-btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.calc-btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.calc-btn-secondary {
    background: white;
    color: var(--text-main);
    border: 2px solid var(--border);
}

.calc-btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ===========================================
   MOBILE SIDEBAR TOGGLE
   =========================================== */
.sidebar-toggle-btn {
    display: none;
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 200;
    transition: var(--transition-fast);
}

.sidebar-toggle-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

/* Overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

/* ===========================================
   FOOTER - Neben der Sidebar (nicht dahinter)
   =========================================== */
.calculator-page ~ #footer-container footer,
.calculator-page ~ footer {
    margin-left: 280px;
}

/* ===========================================
   RESPONSIVE DESIGN
   =========================================== */
@media (max-width: 1024px) {
    .calculator-sidebar {
        width: 260px;
    }
    
    .calculator-main {
        margin-left: 260px;
        padding: 1.5rem 2rem;
    }

    .calculator-page ~ #footer-container footer,
    .calculator-page ~ footer {
        margin-left: 260px;
    }
}

@media (max-width: 768px) {
    .calculator-sidebar {
        transform: translateX(-100%);
        width: 280px;
        top: 0;
        height: 100vh;
        padding-top: 70px;
    }
    
    .calculator-sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .calculator-main {
        margin-left: 0;
        padding: 1.5rem 1rem;
    }

    .calculator-page ~ #footer-container footer,
    .calculator-page ~ footer {
        margin-left: 0;
    }
    
    .sidebar-toggle-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .calc-page-header h1 {
        font-size: 1.5rem;
    }
    
    .calc-form-grid {
        grid-template-columns: 1fr;
    }
    
    .calc-results-grid {
        grid-template-columns: 1fr;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
    
    .calc-overview-grid {
        grid-template-columns: 1fr;
    }
    
    .calculator-card-body {
        padding: 1.25rem;
    }
}

@media (max-width: 480px) {
    .calc-toggle-group {
        flex-direction: column;
    }
    
    .calc-toggle-btn {
        width: 100%;
        text-align: center;
    }
    
    .calc-actions {
        flex-direction: column;
    }
    
    .calc-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ===========================================
   PRINT STYLES
   =========================================== */
@media print {
    .calculator-sidebar,
    .sidebar-toggle-btn,
    .navbar {
        display: none !important;
    }
    
    .calculator-main {
        margin-left: 0;
        padding: 0;
    }
    
    .calculator-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ===========================================
   EINKUNFTSARTEN - Erweiterter Modus
   Version: 2.0
   =========================================== */

/* Container für Einkunftsarten */
.einkunftsarten-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Einzelne Einkunfts-Karte */
.einkunft-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition-fast);
}

.einkunft-card:hover {
    border-color: var(--primary-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.einkunft-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.einkunft-icon {
    font-size: 1.25rem;
}

.einkunft-type-select {
    flex: 1;
    padding: 0.4rem 0.75rem;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-white);
}

.einkunft-remove {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.einkunft-remove:hover {
    background: var(--error-bg);
    color: var(--error);
}

.einkunft-body {
    padding: 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 600px) {
    .einkunft-body {
        grid-template-columns: 1fr;
    }
}

/* Button für neue Einkunft */
.calc-btn-small {
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
}

/* Modus-Switch Styling */
.calc-mode-switch {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.calc-mode-switch label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
}

.calc-mode-switch input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary);
}

.calc-mode-switch strong {
    display: block;
    color: var(--text-main);
}

.calc-mode-switch p {
    margin: 0.25rem 0 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Sektion-Header im erweiterten Modus */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-header h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-main);
}

/* Sonderausgaben Sektion */
.sonderausgaben-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

/* ===========================================
   PARTNER CARDS - Splitting/Verheiratet
   =========================================== */

/* Partner Grid (2 Spalten) */
.partner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .partner-grid {
        grid-template-columns: 1fr;
    }
}

/* Partner Karte */
.partner-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
}

.partner-card h4 {
    margin: 0 0 1rem;
    font-size: 1rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.partner-card h5 {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-main);
}

/* Kompaktere Einkunft-Cards innerhalb von Partner-Cards */
.partner-card .einkunft-card {
    margin-bottom: 0.75rem;
}

.partner-card .einkunft-body {
    grid-template-columns: 1fr;
    padding: 0.75rem;
}

.partner-card .einkunft-header {
    padding: 0.5rem 0.75rem;
}

/* Section Header in Partner Cards */
.partner-card .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

/* ===========================================
   SANKEY DIAGRAM - Steuerverteilung
   Version: 1.0
   =========================================== */

/* Sankey Section Container */
.sankey-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.sankey-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.sankey-header h3 {
    font-size: 1.15rem;
    color: var(--text-main);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.sankey-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Sankey SVG Container */
.sankey-container {
    background: white;
    border-radius: var(--radius-md);
    padding: 1rem;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.sankey-svg {
    max-width: 100%;
    height: auto;
}

/* Sankey Empty State */
.sankey-empty {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
}

.sankey-empty-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.sankey-empty p {
    font-size: 0.95rem;
}

/* Sankey SVG Labels */
.sankey-label {
    font-family: 'Inter', 'Space Grotesk', system-ui, sans-serif;
}

.sankey-label-title {
    font-size: 11px;
    font-weight: 600;
    fill: #64748b;
}

.sankey-label-value {
    font-size: 13px;
    font-weight: 700;
    fill: #0f172a;
}

.sankey-label-node {
    font-size: 11px;
    font-weight: 600;
}

.sankey-legend-text {
    font-size: 11px;
    fill: #64748b;
    font-family: 'Inter', sans-serif;
}

/* Sankey Actions Bar */
.sankey-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.sankey-download-group,
.sankey-share-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Sankey Button Styles */
.sankey-btn {
    padding: 0.5rem 0.875rem;
    font-size: 0.8rem;
    font-weight: 500;
    background: white;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.sankey-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.sankey-btn-share {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary-dark);
}

.sankey-btn-share:hover {
    background: var(--primary);
    color: white;
}

/* Share Dropdown */
.sankey-share-dropdown {
    position: relative;
}

.share-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    z-index: 100;
    overflow: hidden;
}

.share-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-main);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.share-option:hover {
    background: var(--bg-body);
    color: var(--primary);
}

.share-icon {
    font-size: 1rem;
    width: 24px;
    text-align: center;
}

/* Toast Notification */
.sankey-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: toastSlideUp 0.3s ease-out;
}

@keyframes toastSlideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

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

.toast-message {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Sankey Responsive */
@media (max-width: 768px) {
    .sankey-section {
        padding: 1rem;
        margin-top: 1.5rem;
    }
    
    .sankey-container {
        min-height: 250px;
        padding: 0.75rem;
    }
    
    .sankey-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .sankey-download-group,
    .sankey-share-group {
        width: 100%;
        justify-content: center;
    }
    
    .sankey-btn {
        flex: 1;
        justify-content: center;
    }
}

/* Print Styles for Sankey */
@media print {
    .sankey-actions,
    .sankey-toast {
        display: none !important;
    }
    
    .sankey-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .sankey-container {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}