/* ===================================
   MOBILE-FIRST CALCULATORS STYLESHEET
   Lightweight, Fast, Performance Optimized
   =================================== */

/* Calculator Container */
.calculator-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px; /* Reduced padding */
}

/* Desktop Layout */
@media (min-width: 768px) {
    .calculator-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 30px;
        padding: 20px;
    }
}

/* Calculator Forms */
.calculator-form {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px; /* Reduced padding */
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .calculator-form {
        padding: 30px;
        margin-bottom: 0;
    }
}

.form-group {
    margin-bottom: 20px; /* Reduced spacing */
}

@media (min-width: 768px) {
    .form-group {
        margin-bottom: 25px;
    }
}

.form-group label {
    display: block;
    margin-bottom: 6px; /* Reduced spacing */
    font-weight: 600;
    font-size: 14px; /* Mobile font size */
}

@media (min-width: 768px) {
    .form-group label {
        margin-bottom: 8px;
        font-size: 16px; /* Desktop font size */
    }
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px; /* Reduced padding for mobile */
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px; /* Mobile font size */
    background: var(--card-bg);
    color: var(--text-color);
}

@media (min-width: 768px) {
    .form-group input,
    .form-group select {
        padding: 12px 15px; /* Desktop padding */
        font-size: 16px; /* Desktop font size */
    }
}

.form-group input,
.form-group select {
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 107, 223, 0.1);
}

/* Fund Selection */
.fund-selection {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.fund-selection h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.fund-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.fund-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.fund-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 107, 223, 0.2);
}

.fund-card.selected {
    border-color: var(--primary-color);
    background: rgba(74, 107, 223, 0.1);
}

.fund-card h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.fund-card p {
    color: var(--text-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.fund-card .return-rate {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Calculate Button */
.calculate-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    width: 100%;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 107, 223, 0.4);
}

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

/* Results Section */
.results-section {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: none;
}

.results-section.show {
    display: block;
}

.results-header {
    text-align: center;
    margin-bottom: 30px;
}

.results-header h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.result-card {
    background: linear-gradient(135deg, rgba(74, 107, 223, 0.05) 0%, rgba(52, 152, 219, 0.05) 100%);
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.result-card h3 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.result-card .amount {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.result-card .label {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* Chart Section */
.chart-section {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.chart-header h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
}

.chart-tabs {
    display: flex;
    gap: 10px;
}

.chart-tab {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
}

.chart-tab:hover {
    border-color: var(--primary-color);
    background: rgba(74, 107, 223, 0.1);
}

.chart-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.chart-container {
    position: relative;
    height: 400px;
    width: 100%;
}

/* Table Section */
.table-section {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.table-section h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.results-table th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 0.9rem;
}

.results-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.9rem;
}

.results-table tr:last-child td {
    border-bottom: none;
}

.results-table tr:hover {
    background: rgba(74, 107, 223, 0.05);
}

/* SWP Specific Styles */
.delay-input {
    background: rgba(255, 193, 7, 0.1);
    border: 2px solid #ffc107;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
}

.delay-input h4 {
    color: #e67e22;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

/* Diversification Calculator Styles */
.asset-allocation {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.asset-allocation h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.allocation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.allocation-item {
    text-align: center;
    padding: 15px;
    background: rgba(74, 107, 223, 0.05);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.allocation-item h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 10px;
}

.allocation-item .percentage {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Mobile-First Responsive Design */
@media (max-width: 768px) {
    .calculator-container {
        padding: 15px;
    }
    
    .calculator-form,
    .fund-selection,
    .results-section,
    .chart-section,
    .table-section,
    .asset-allocation {
        padding: 20px;
    }
    
    .fund-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 10px;
    }
    
    .results-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }
    
    .chart-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .chart-tabs {
        justify-content: center;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .results-table {
        font-size: 0.8rem;
    }
    
    .results-table th,
    .results-table td {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .calculator-form,
    .fund-selection,
    .results-section,
    .chart-section,
    .table-section,
    .asset-allocation {
        padding: 15px;
    }
    
    .fund-grid {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .allocation-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 250px;
    }
    
    .calculate-btn {
        padding: 12px 20px;
        font-size: 1rem;
    }
}