:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
    color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: var(--box-shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.logo p {
    font-size: 0.8rem;
    opacity: 0.8;
}

.noscript-warning {
    background-color: #ffebee;
    color: #c62828;
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
}

.nav-tabs {
    display: flex;
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: var(--box-shadow);
}

.nav-tab {
    flex: 1;
    text-align: center;
    padding: 15px;
    background-color: var(--light-color);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    font-weight: 500;
}

.nav-tab:hover {
    background-color: #d5dbdb;
}

.nav-tab.active {
    background-color: var(--secondary-color);
    color: white;
}

.calculator-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.calculator-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.calculator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: var(--secondary-color);
    color: white;
    padding: 15px 20px;
    font-weight: bold;
    font-size: 1.1rem;
}

.card-body {
    padding: 20px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="number"]:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
    outline: none;
}

.input-with-suffix {
    position: relative;
}

.input-suffix {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: #777;
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 5px;
}

.radio-option {
    display: flex;
    align-items: center;
}

.radio-option input {
    margin-right: 5px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    margin-top: 5px;
}

.checkbox-group input {
    margin-right: 8px;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    width: 100%;
}

.btn:hover {
    background-color: #2980b9;
}

.result-group {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.result-label {
    font-weight: 500;
    margin-bottom: 5px;
}

.result-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.percentage-inputs {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 15px;
    align-items: center;
    min-width: 350px;
}

.percentage-input-wrapper {
    display: flex;
    gap: 15px;
    align-items: center;
    min-width: 280px;
}

.percentage-inputs input {
    width: 100px;
}

.percentage-result {
    display: flex;
    gap: 15px;
}

.percentage-field {
    width: 100px !important;
}

.info-text {
    font-size: 0.85rem;
    color: #777;
    margin-top: 5px;
    font-style: italic;
}

.calculator-section {
    display: none;
}

.calculator-section.active {
    display: block;
}

footer {
    text-align: center;
    margin-top: 30px;
    padding: 20px;
    color: #777;
    font-size: 0.9rem;
}

/* Deutsche Zahlenformatierung für Ausgabefelder */
.result-display {
    font-family: 'Courier New', monospace;
    text-align: right;
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-weight: bold;
    color: var(--primary-color);
    width: 100%;
    min-width: 150px;
    box-sizing: border-box;
}

/* Speziell für die Prozent-Eingabefelder */
input[name$="Prozent"] {
    text-align: right;
    font-family: 'Courier New', monospace;
    min-width: 80px;
}

/* Garantiert ausreichend Platz für Euro-Beträge */
.percentage-input-wrapper .result-display {
    min-width: 160px;
    flex-shrink: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .nav-tabs {
        flex-direction: column;
    }
    
    .percentage-inputs {
        grid-template-columns: 1fr;
        min-width: auto;
        gap: 10px;
    }
    
    .percentage-input-wrapper {
        min-width: auto;
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }
    
    .percentage-inputs input {
        width: 100%;
    }
    
    .percentage-result {
        flex-direction: column;
        gap: 8px;
    }
    
    .percentage-field {
        width: 100% !important;
    }
    
    .result-display {
        min-width: 100%;
        width: 100%;
    }
    
    .percentage-input-wrapper .result-display {
        min-width: 100%;
    }
    
    input[name$="Prozent"] {
        min-width: 100%;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .card-body {
        padding: 15px;
    }
    
    .btn {
        padding: 10px 15px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .percentage-inputs {
        min-width: auto;
    }
}

/* --- Tilgungsplan Modernes Design --- */

/* Allgemeine Struktur */
.tilgungsplan-modern h2 {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.tilgungsplan-modern h3 {
    color: #34495e;
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.2em;
}

/* Summary Box (oben) */
.summary-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
    padding: 15px;
    background-color: #ecf0f1;
    border-radius: 8px;
}

.summary-item {
    padding: 10px;
    border-left: 3px solid #3498db;
}

.summary-label {
    font-size: 0.85em;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.summary-value {
    font-size: 1.1em;
    font-weight: bold;
    color: #2c3e50;
}

/* Highlights */
.highlight-primary { color: #2980b9; }
.highlight-secondary { color: #27ae60; }
.highlight-tertiary { color: #e67e22; }
.highlight-info { color: #9b59b6; }

/* Tabelle */
.table-scroll-wrapper {
    overflow-x: auto;
}

.tiltable-modern {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    font-size: 0.95em;
}

.tiltable-modern th, .tiltable-modern td {
    padding: 10px 12px;
    text-align: right;
    border: 1px solid #ddd;
}

.tiltable-modern th {
    background-color: #3498db;
    color: white;
    font-weight: normal;
    text-align: center;
    border-color: #2980b9;
}

.tiltable-modern tr:nth-child(even) {
    background-color: #f9f9f9;
}

/* Spezielle Spaltenausrichtung */
.tiltable-modern .col-jahr {
    text-align: center;
    font-weight: bold;
}
.tiltable-modern .col-restschuld {
    font-weight: bold;
    color: #34495e;
}
.tiltable-modern .col-tilg-anteil {
    font-size: 0.9em;
}

/* Break-Even Hervorhebung */
.tiltable-modern .break-even-row {
    background-color: #fcf8e3 !important;
    border: 2px solid #f39c12;
}

/* Zwischenbilanz & Finale Zusammenfassung */
.intermediate-summary, .final-summary {
    background-color: #ecf0f1;
    border-left: 5px solid #3498db;
    padding: 15px;
    margin: 25px 0;
    border-radius: 4px;
}

.summary-data {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-around;
    text-align: center;
}

.summary-data span {
    flex: 1 1 250px;
    font-size: 1em;
}

/* --- Druckeranpassungen (Print Styles) --- */
@media print {
    .nav-tabs, header, footer, .btn, .calculator-card .card-footer {
        display: none !important;
    }

    .container {
        width: 100%;
        margin: 0;
        padding: 0;
    }

    .calculator-section:not(.active) {
        display: none !important;
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    .tiltable-modern th {
        background-color: #ccc !important;
        color: black !important;
        -webkit-print-color-adjust: exact;
    }

    .tiltable-modern tr:nth-child(even) {
        background-color: #f0f0f0 !important;
        -webkit-print-color-adjust: exact;
    }

    .break-even-row {
        border: 1px solid #000 !important;
        -webkit-print-color-adjust: exact;
    }

    .summary-box, .intermediate-summary, .final-summary {
        border: 1px solid #000 !important;
        background-color: #f8f8f8 !important;
        -webkit-print-color-adjust: exact;
    }
    
    a[href]:after {
        content: none !important;
    }
    
    /* Zahlenformatierung für Druck beibehalten */
    .result-display {
        font-family: 'Courier New', monospace !important;
        background-color: transparent !important;
        border: none !important;
    }
}