/* Finanzrechner Frontend Styles - Mobile First */

/* Base Variables */
:root {
    --finanzrechner-primary: #0175DA;
    --finanzrechner-secondary: #FFD200;
    --finanzrechner-success: #22C55E;
    --finanzrechner-error: #EF4444;
    --finanzrechner-warning: #F59E0B;
    --finanzrechner-gray-50: #F9FAFB;
    --finanzrechner-gray-100: #F3F4F6;
    --finanzrechner-gray-200: #E5E7EB;
    --finanzrechner-gray-300: #D1D5DB;
    --finanzrechner-gray-400: #9CA3AF;
    --finanzrechner-gray-500: #6B7280;
    --finanzrechner-gray-600: #4B5563;
    --finanzrechner-gray-700: #374151;
    --finanzrechner-gray-800: #1F2937;
    --finanzrechner-gray-900: #111827;
    --finanzrechner-white: #FFFFFF;
    --finanzrechner-black: #000000;
    
    --finanzrechner-border-radius: 8px;
    --finanzrechner-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --finanzrechner-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --finanzrechner-transition: all 0.2s ease-in-out;
}

/* Reset and Base Styles */
.finanzrechner-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--finanzrechner-gray-800);
    box-sizing: border-box;
}

.finanzrechner-wrapper *,
.finanzrechner-wrapper *::before,
.finanzrechner-wrapper *::after {
    box-sizing: inherit;
}

/* Main Container */
.finanzrechner-wrapper {
    max-width: 100%;
    margin: 0 auto;
    padding: 1rem;
    background: var(--finanzrechner-white);
    border-radius: var(--finanzrechner-border-radius);
    box-shadow: var(--finanzrechner-shadow);
}

/* Title */
.finanzrechner-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--finanzrechner-primary);
    margin: 0 0 1rem 0;
    text-align: center;
}

/* Description */
.finanzrechner-description {
    font-size: 0.95rem;
    color: var(--finanzrechner-gray-600);
    margin: 0 0 1.5rem 0;
    text-align: center;
}

/* Form */
.finanzrechner-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Field Wrapper */
.finanzrechner-field-wrapper {
    width: 100%;
}

/* Field Container */
.finanzrechner-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Labels */
.finanzrechner-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--finanzrechner-gray-700);
    margin-bottom: 0.25rem;
}

/* Input Wrapper */
.finanzrechner-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

/* Input Fields */
.finanzrechner-input,
.finanzrechner-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--finanzrechner-gray-300);
    border-radius: var(--finanzrechner-border-radius);
    font-size: 1rem;
    transition: var(--finanzrechner-transition);
    background: var(--finanzrechner-white);
    appearance: none;
}

.finanzrechner-input:focus,
.finanzrechner-select:focus {
    outline: none;
    border-color: var(--finanzrechner-primary);
    box-shadow: 0 0 0 3px rgba(1, 117, 218, 0.1);
}

/* Number Input with Suffix */
.finanzrechner-input-wrapper .finanzrechner-input {
    padding-right: 2.5rem;
}

.finanzrechner-suffix {
    position: absolute;
    right: 0.75rem;
    color: var(--finanzrechner-gray-500);
    font-size: 0.9rem;
    pointer-events: none;
}

/* Select Dropdown */
.finanzrechner-select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%236B7280' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
    padding-right: 2.5rem;
}

/* Radio Groups */
.finanzrechner-radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.finanzrechner-radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--finanzrechner-gray-700);
    transition: var(--finanzrechner-transition);
}

.finanzrechner-radio-label:hover {
    color: var(--finanzrechner-primary);
}

.finanzrechner-radio {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid var(--finanzrechner-gray-300);
    border-radius: 50%;
    appearance: none;
    transition: var(--finanzrechner-transition);
    cursor: pointer;
}

.finanzrechner-radio:checked {
    border-color: var(--finanzrechner-primary);
    background: var(--finanzrechner-primary);
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3E%3Ccircle cx='4' cy='4' r='2' fill='%23ffffff'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* Checkbox */
.finanzrechner-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--finanzrechner-gray-700);
    transition: var(--finanzrechner-transition);
}

.finanzrechner-checkbox-label:hover {
    color: var(--finanzrechner-primary);
}

.finanzrechner-checkbox {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid var(--finanzrechner-gray-300);
    border-radius: 3px;
    appearance: none;
    transition: var(--finanzrechner-transition);
    cursor: pointer;
}

.finanzrechner-checkbox:checked {
    border-color: var(--finanzrechner-primary);
    background: var(--finanzrechner-primary);
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l2.5 2.5L10 3' stroke='%23ffffff' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* Field Groups */
.finanzrechner-field-group {
    padding: 1rem;
    border: 1px solid var(--finanzrechner-gray-200);
    border-radius: var(--finanzrechner-border-radius);
    background: var(--finanzrechner-gray-50);
}

.finanzrechner-group-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--finanzrechner-primary);
    margin: 0 0 1rem 0;
    border-bottom: 1px solid var(--finanzrechner-gray-200);
    padding-bottom: 0.5rem;
}

/* Actions */
.finanzrechner-actions {
    margin-top: 1.5rem;
    text-align: center;
}

.finanzrechner-calculate-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--finanzrechner-secondary);
    color: var(--finanzrechner-black);
    border: none;
    border-radius: var(--finanzrechner-border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--finanzrechner-transition);
    box-shadow: var(--finanzrechner-shadow);
}

.finanzrechner-calculate-btn:hover {
    background: #e6bd00;
    transform: translateY(-1px);
    box-shadow: var(--finanzrechner-shadow-lg);
}

.finanzrechner-calculate-btn:active {
    transform: translateY(0);
}

.finanzrechner-calculate-btn:disabled {
    background: var(--finanzrechner-gray-300);
    color: var(--finanzrechner-gray-500);
    cursor: not-allowed;
    transform: none;
}

/* Results */
.finanzrechner-results {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--finanzrechner-gray-50);
    border-radius: var(--finanzrechner-border-radius);
    border: 1px solid var(--finanzrechner-gray-200);
}

.finanzrechner-loading {
    text-align: center;
    padding: 2rem;
    color: var(--finanzrechner-gray-600);
}

.finanzrechner-loading::after {
    content: "";
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--finanzrechner-gray-300);
    border-radius: 50%;
    border-top-color: var(--finanzrechner-primary);
    animation: spin 1s ease-in-out infinite;
    margin-left: 0.5rem;
}

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

/* Result Items */
.finanzrechner-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--finanzrechner-gray-200);
}

.finanzrechner-result-item:last-child {
    border-bottom: none;
}

.finanzrechner-result-label {
    font-weight: 500;
    color: var(--finanzrechner-gray-700);
}

.finanzrechner-result-value {
    font-weight: 600;
    color: var(--finanzrechner-primary);
    font-size: 1.1rem;
}

.finanzrechner-result-value.positive {
    color: var(--finanzrechner-success);
}

.finanzrechner-result-value.negative {
    color: var(--finanzrechner-error);
}

/* Chart Container */
.finanzrechner-chart-container {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--finanzrechner-white);
    border-radius: var(--finanzrechner-border-radius);
    border: 1px solid var(--finanzrechner-gray-200);
}

.finanzrechner-chart-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--finanzrechner-gray-800);
    margin-bottom: 1rem;
    text-align: center;
}

/* Error States */
.finanzrechner-error {
    color: var(--finanzrechner-error);
    background: #fef2f2;
    border: 1px solid #fecaca;
    padding: 1rem;
    border-radius: var(--finanzrechner-border-radius);
    margin: 1rem 0;
}

.finanzrechner-field.error .finanzrechner-input,
.finanzrechner-field.error .finanzrechner-select {
    border-color: var(--finanzrechner-error);
}

.finanzrechner-field.error .finanzrechner-label {
    color: var(--finanzrechner-error);
}

/* Success States */
.finanzrechner-success {
    color: var(--finanzrechner-success);
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    padding: 1rem;
    border-radius: var(--finanzrechner-border-radius);
    margin: 1rem 0;
}

/* Responsive Design - Tablet */
@media (min-width: 768px) {
    .finanzrechner-wrapper {
        padding: 2rem;
    }
    
    .finanzrechner-title {
        font-size: 2rem;
    }
    
    .finanzrechner-form {
        gap: 1.5rem;
    }
    
    .finanzrechner-radio-group {
        flex-direction: row;
        gap: 1.5rem;
    }
    
    .finanzrechner-calculate-btn {
        width: auto;
        min-width: 200px;
    }
    
    .finanzrechner-results {
        padding: 2rem;
    }
    
    /* Two-column layout for form fields */
    .finanzrechner-form.two-column {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    
    .finanzrechner-form.two-column .finanzrechner-actions {
        grid-column: 1 / -1;
    }
}

/* Responsive Design - Desktop */
@media (min-width: 1024px) {
    .finanzrechner-wrapper {
        max-width: 1200px;
        padding: 2.5rem;
    }
    
    .finanzrechner-title {
        font-size: 2.5rem;
    }
    
    .finanzrechner-description {
        font-size: 1.1rem;
    }
    
    /* Three-column layout for larger screens */
    .finanzrechner-form.three-column {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 2rem;
    }
    
    .finanzrechner-form.three-column .finanzrechner-actions {
        grid-column: 1 / -1;
    }
    
    /* Side-by-side layout for form and results */
    .finanzrechner-wrapper.side-by-side {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .finanzrechner-wrapper.side-by-side .finanzrechner-results {
        margin-top: 0;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .finanzrechner-wrapper {
        background: var(--finanzrechner-gray-800);
        color: var(--finanzrechner-gray-100);
    }
    
    .finanzrechner-input,
    .finanzrechner-select {
        background: var(--finanzrechner-gray-700);
        border-color: var(--finanzrechner-gray-600);
        color: var(--finanzrechner-gray-100);
    }
    
    .finanzrechner-field-group {
        background: var(--finanzrechner-gray-700);
        border-color: var(--finanzrechner-gray-600);
    }
    
    .finanzrechner-results {
        background: var(--finanzrechner-gray-700);
        border-color: var(--finanzrechner-gray-600);
    }
}

/* Print Styles */
@media print {
    .finanzrechner-wrapper {
        box-shadow: none;
        border: 1px solid var(--finanzrechner-gray-300);
    }
    
    .finanzrechner-calculate-btn {
        display: none;
    }
    
    .finanzrechner-results {
        display: block !important;
    }
}