/* =========================================
   INVESTMENT CALCULATOR CSS
   ========================================= */

:root {
    --inv-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --inv-gradient-2: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --inv-gradient-3: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --inv-gradient-4: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --inv-gradient-5: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --inv-bg-dark: #0f172a;
    --inv-bg-card: #1e293b;
    --inv-bg-input: #0f172a;
    --inv-border: #334155;
    --inv-border-light: #475569;
    --inv-white: #ffffff;
    --inv-gray: #cbd5e1;
    --inv-muted: #94a3b8;
    --inv-success: #22c55e;
    --inv-warning: #eab308;
    --inv-danger: #ef4444;
    --inv-purple: #a855f7;
    --inv-blue: #3b82f6;
    --inv-cyan: #06b6d4;
    --inv-orange: #f97316;
    --inv-pink: #ec4899;
    --inv-emerald: #10b981;
}

.invest-calc-wrapper {
    background: linear-gradient(to bottom, var(--inv-bg-dark), var(--inv-bg-card));
    padding: 3rem 1.5rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--inv-white);
    line-height: 1.6;
    min-height: 100vh;
}

.invest-calc-wrapper * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.invest-calc-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
.invest-calc-wrapper .calc-header {
    text-align: center;
    margin-bottom: 3rem;
}

.invest-calc-wrapper .calc-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--inv-white);
    margin-bottom: 1rem;
}

.invest-calc-wrapper .calc-description {
    font-size: 1.1rem;
    color: var(--inv-gray);
    max-width: 700px;
    margin: 0 auto;
}

/* Calculator Main Grid */
.invest-calc-wrapper .calculator-main {
    margin-bottom: 2rem;
}

.invest-calc-wrapper .calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

/* Input Card */
.invest-calc-wrapper .input-card,
.invest-calc-wrapper .results-card {
    background: var(--inv-bg-card);
    border: 1px solid var(--inv-border);
    border-radius: 1.5rem;
    padding: 2rem;
}

.invest-calc-wrapper .card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--inv-white);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.invest-calc-wrapper .card-title i {
    color: var(--inv-purple);
}

/* Form Styles */
.invest-calc-wrapper .form-group {
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--inv-white);
    margin-bottom: 0.5rem;
}

.invest-calc-wrapper .form-label i {
    color: var(--inv-purple);
    font-size: 0.85rem;
}

.invest-calc-wrapper .input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.invest-calc-wrapper .input-icon {
    position: absolute;
    left: 1rem;
    color: var(--inv-muted);
    font-weight: 600;
    font-size: 1rem;
    z-index: 1;
}

.invest-calc-wrapper .input-icon.right {
    left: auto;
    right: 1rem;
}

.invest-calc-wrapper .form-input,
.invest-calc-wrapper .form-select {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.5rem;
    border: 1px solid var(--inv-border-light);
    border-radius: 0.75rem;
    background: var(--inv-bg-input);
    color: var(--inv-white);
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.invest-calc-wrapper .input-with-icon.right .form-input {
    padding-left: 1rem;
    padding-right: 3.5rem;
}

.invest-calc-wrapper .form-select {
    padding-left: 1rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
}

.invest-calc-wrapper .form-input:focus,
.invest-calc-wrapper .form-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102,126,234,0.15);
}

.invest-calc-wrapper .form-input::placeholder {
    color: var(--inv-muted);
}

.invest-calc-wrapper .input-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--inv-muted);
    margin-top: 0.35rem;
}

/* Options Toggle */
.invest-calc-wrapper .options-toggle {
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 0.5rem;
    color: var(--inv-gray);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    justify-content: center;
}

.invest-calc-wrapper .toggle-btn:hover {
    border-color: var(--inv-purple);
    color: var(--inv-white);
}

.invest-calc-wrapper .toggle-btn .toggle-icon {
    transition: transform 0.3s ease;
}

.invest-calc-wrapper .toggle-btn.active .toggle-icon {
    transform: rotate(180deg);
}

/* Advanced Options */
.invest-calc-wrapper .advanced-options {
    padding: 1.5rem;
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

/* Calculate Button */
.invest-calc-wrapper .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.invest-calc-wrapper .btn-primary {
    background: var(--inv-gradient);
    color: var(--inv-white);
}

.invest-calc-wrapper .btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(102,126,234,0.4);
}

/* Results Card */
.invest-calc-wrapper .main-result {
    text-align: center;
    padding: 2rem;
    background: var(--inv-gradient);
    border-radius: 1rem;
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .main-result .result-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.invest-calc-wrapper .main-result .result-value {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--inv-white);
    margin-bottom: 0.25rem;
}

.invest-calc-wrapper .main-result .result-period {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.8);
}

/* Results Breakdown */
.invest-calc-wrapper .results-breakdown {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .breakdown-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 0.75rem;
}

.invest-calc-wrapper .breakdown-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--inv-white);
}

.invest-calc-wrapper .breakdown-icon.initial {
    background: var(--inv-gradient-4);
}

.invest-calc-wrapper .breakdown-icon.contributions {
    background: var(--inv-gradient-2);
}

.invest-calc-wrapper .breakdown-icon.interest {
    background: var(--inv-gradient-5);
}

.invest-calc-wrapper .breakdown-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.invest-calc-wrapper .breakdown-label {
    font-size: 0.9rem;
    color: var(--inv-gray);
}

.invest-calc-wrapper .breakdown-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--inv-white);
}

/* Visual Breakdown */
.invest-calc-wrapper .visual-breakdown {
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .visual-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--inv-white);
    margin-bottom: 1rem;
}

.invest-calc-wrapper .progress-bar-container {
    margin-bottom: 1rem;
}

.invest-calc-wrapper .progress-bar {
    display: flex;
    height: 24px;
    border-radius: 12px;
    overflow: hidden;
    background: var(--inv-bg-input);
}

.invest-calc-wrapper .progress-segment {
    height: 100%;
    transition: width 0.5s ease;
}

.invest-calc-wrapper .progress-segment.initial {
    background: var(--inv-gradient-4);
}

.invest-calc-wrapper .progress-segment.contributions {
    background: var(--inv-gradient-2);
}

.invest-calc-wrapper .progress-segment.interest {
    background: var(--inv-gradient-5);
}

.invest-calc-wrapper .progress-legend {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.invest-calc-wrapper .legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--inv-gray);
}

.invest-calc-wrapper .legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.invest-calc-wrapper .legend-color.initial {
    background: var(--inv-gradient-4);
}

.invest-calc-wrapper .legend-color.contributions {
    background: var(--inv-gradient-2);
}

.invest-calc-wrapper .legend-color.interest {
    background: var(--inv-gradient-5);
}

/* Inflation Result */
.invest-calc-wrapper .inflation-result {
    padding: 1rem 1.25rem;
    background: rgba(234,179,8,0.1);
    border: 1px solid rgba(234,179,8,0.3);
    border-radius: 0.75rem;
}

.invest-calc-wrapper .inflation-header {
    font-size: 0.85rem;
    color: var(--inv-warning);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.invest-calc-wrapper .inflation-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--inv-white);
    margin-bottom: 0.25rem;
}

.invest-calc-wrapper .inflation-note {
    font-size: 0.8rem;
    color: var(--inv-muted);
}

/* Quick Stats */
.invest-calc-wrapper .quick-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.invest-calc-wrapper .stat-card {
    background: var(--inv-bg-card);
    border: 1px solid var(--inv-border);
    border-radius: 1rem;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.invest-calc-wrapper .stat-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: var(--inv-gradient);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--inv-white);
}

.invest-calc-wrapper .stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--inv-white);
}

.invest-calc-wrapper .stat-label {
    font-size: 0.8rem;
    color: var(--inv-muted);
}

/* Info Cards */
.invest-calc-wrapper .info-card {
    background: var(--inv-bg-card);
    border: 1px solid var(--inv-border);
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .info-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--inv-white);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.invest-calc-wrapper .info-title i {
    color: var(--inv-purple);
}

/* Data Table */
.invest-calc-wrapper .table-container {
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
}

.invest-calc-wrapper .data-table {
    width: 100%;
    border-collapse: collapse;
}

.invest-calc-wrapper .data-table th,
.invest-calc-wrapper .data-table td {
    padding: 1rem;
    text-align: right;
    border-bottom: 1px solid var(--inv-border);
}

.invest-calc-wrapper .data-table th:first-child,
.invest-calc-wrapper .data-table td:first-child {
    text-align: left;
}

.invest-calc-wrapper .data-table th {
    position: sticky;
    top: 0;
    background: var(--inv-bg-card);
    color: var(--inv-gray);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.invest-calc-wrapper .data-table td {
    color: var(--inv-white);
    font-size: 0.95rem;
}

.invest-calc-wrapper .data-table tbody tr:hover {
    background: rgba(255,255,255,0.02);
}

/* Chart Container */
.invest-calc-wrapper .chart-container {
    padding: 1rem 0;
}

.invest-calc-wrapper .chart-wrapper {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 250px;
    padding: 1rem 0;
    gap: 4px;
}

.invest-calc-wrapper .chart-bar {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    max-width: 50px;
}

.invest-calc-wrapper .chart-bar-stack {
    width: 100%;
    display: flex;
    flex-direction: column;
    border-radius: 4px 4px 0 0;
    overflow: hidden;
}

.invest-calc-wrapper .chart-bar-segment {
    width: 100%;
    transition: height 0.3s ease;
}

.invest-calc-wrapper .chart-bar-segment.contributions {
    background: var(--inv-gradient-2);
}

.invest-calc-wrapper .chart-bar-segment.interest {
    background: var(--inv-gradient-5);
}

.invest-calc-wrapper .chart-bar-label {
    font-size: 0.7rem;
    color: var(--inv-muted);
    margin-top: 0.5rem;
}

.invest-calc-wrapper .chart-legend {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.invest-calc-wrapper .chart-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--inv-gray);
}

.invest-calc-wrapper .chart-legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

.invest-calc-wrapper .chart-legend-color.contributions {
    background: var(--inv-gradient-2);
}

.invest-calc-wrapper .chart-legend-color.interest {
    background: var(--inv-gradient-5);
}

/* Scenarios Grid */
.invest-calc-wrapper .scenarios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.invest-calc-wrapper .scenario-card {
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.invest-calc-wrapper .scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}

.invest-calc-wrapper .scenario-header {
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.invest-calc-wrapper .scenario-header.conservative {
    background: linear-gradient(135deg, var(--inv-blue) 0%, var(--inv-cyan) 100%);
}

.invest-calc-wrapper .scenario-header.moderate {
    background: var(--inv-gradient-2);
}

.invest-calc-wrapper .scenario-header.aggressive {
    background: var(--inv-gradient-3);
}

.invest-calc-wrapper .scenario-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--inv-white);
}

.invest-calc-wrapper .scenario-body {
    padding: 1.5rem;
    text-align: center;
}

.invest-calc-wrapper .scenario-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--inv-white);
    margin-bottom: 0.5rem;
}

.invest-calc-wrapper .scenario-desc {
    font-size: 0.85rem;
    color: var(--inv-muted);
}

/* Formula Section */
.invest-calc-wrapper .formula-section {
    display: flex;
    justify-content: center;
}

.invest-calc-wrapper .formula-box.main-formula {
    max-width: 700px;
    padding: 2rem;
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 1rem;
}

.invest-calc-wrapper .formula-content {
    text-align: center;
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .formula {
    font-family: 'Courier New', monospace;
    font-size: 1.25rem;
    color: var(--inv-cyan);
    background: var(--inv-bg-card);
    padding: 1.25rem 1.5rem;
    border-radius: 0.75rem;
    display: inline-block;
}

.invest-calc-wrapper .formula-variables {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.invest-calc-wrapper .variable {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.invest-calc-wrapper .var-symbol {
    font-family: 'Courier New', monospace;
    font-weight: 700;
    color: var(--inv-orange);
    background: var(--inv-bg-card);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    min-width: 45px;
    text-align: center;
}

.invest-calc-wrapper .var-desc {
    color: var(--inv-gray);
}

/* Early Start Section */
.invest-calc-wrapper .early-start-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .early-start-example {
    padding: 1.5rem;
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 1rem;
    text-align: center;
}

.invest-calc-wrapper .person-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    background: var(--inv-gradient-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--inv-white);
}

.invest-calc-wrapper .person-icon.delayed {
    background: var(--inv-gradient-3);
}

.invest-calc-wrapper .early-start-example h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--inv-white);
    margin-bottom: 1rem;
}

.invest-calc-wrapper .example-details {
    list-style: none;
    text-align: left;
}

.invest-calc-wrapper .example-details li {
    padding: 0.5rem 0;
    color: var(--inv-gray);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--inv-border);
}

.invest-calc-wrapper .example-details li:last-child {
    border-bottom: none;
}

.invest-calc-wrapper .example-details strong {
    color: var(--inv-success);
}

.invest-calc-wrapper .vs-divider {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--inv-muted);
}

.invest-calc-wrapper .early-start-conclusion {
    padding: 1.5rem;
    background: rgba(34,197,94,0.1);
    border: 1px solid rgba(34,197,94,0.3);
    border-radius: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.invest-calc-wrapper .early-start-conclusion i {
    font-size: 1.5rem;
    color: var(--inv-success);
    margin-top: 0.25rem;
}

.invest-calc-wrapper .early-start-conclusion p {
    color: var(--inv-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

.invest-calc-wrapper .early-start-conclusion strong {
    color: var(--inv-success);
}

/* Tips Grid */
.invest-calc-wrapper .tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.invest-calc-wrapper .tip-box {
    padding: 1.5rem;
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.invest-calc-wrapper .tip-box:hover {
    border-color: var(--inv-purple);
    transform: translateY(-4px);
}

.invest-calc-wrapper .tip-icon {
    width: 48px;
    height: 48px;
    background: var(--inv-gradient);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--inv-white);
    margin-bottom: 1rem;
}

.invest-calc-wrapper .tip-box h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--inv-white);
    margin-bottom: 0.5rem;
}

.invest-calc-wrapper .tip-box p {
    font-size: 0.85rem;
    color: var(--inv-muted);
    line-height: 1.6;
}

/* Returns Grid */
.invest-calc-wrapper .returns-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.invest-calc-wrapper .return-item {
    background: var(--inv-bg-input);
    border: 1px solid var(--inv-border);
    border-radius: 1rem;
    overflow: hidden;
    text-align: center;
}

.invest-calc-wrapper .return-header {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.invest-calc-wrapper .return-header.stocks {
    background: linear-gradient(135deg, var(--inv-success) 0%, var(--inv-emerald) 100%);
}

.invest-calc-wrapper .return-header.bonds {
    background: linear-gradient(135deg, var(--inv-blue) 0%, var(--inv-cyan) 100%);
}

.invest-calc-wrapper .return-header.savings {
    background: linear-gradient(135deg, var(--inv-purple) 0%, var(--inv-pink) 100%);
}

.invest-calc-wrapper .return-header.inflation {
    background: linear-gradient(135deg, var(--inv-orange) 0%, var(--inv-danger) 100%);
}

.invest-calc-wrapper .return-header h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--inv-white);
}

.invest-calc-wrapper .return-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--inv-white);
    padding: 1rem 0 0.5rem;
}

.invest-calc-wrapper .return-period {
    font-size: 0.8rem;
    color: var(--inv-muted);
    padding-bottom: 1rem;
}

.invest-calc-wrapper .returns-disclaimer {
    padding: 1rem 1.25rem;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    border-radius: 0.75rem;
    color: var(--inv-gray);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.invest-calc-wrapper .returns-disclaimer i {
    color: var(--inv-danger);
}

/* FAQ */
.invest-calc-wrapper .faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.invest-calc-wrapper .faq-item {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--inv-border);
}

.invest-calc-wrapper .faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.invest-calc-wrapper .faq-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--inv-white);
    margin-bottom: 0.5rem;
}

.invest-calc-wrapper .faq-item p {
    font-size: 0.95rem;
    color: var(--inv-muted);
    line-height: 1.7;
}

/* Responsive */
@media (max-width: 1024px) {
    .invest-calc-wrapper .calculator-grid {
        grid-template-columns: 1fr;
    }
    
    .invest-calc-wrapper .quick-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .invest-calc-wrapper .scenarios-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .invest-calc-wrapper .tips-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .invest-calc-wrapper .returns-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .invest-calc-wrapper {
        padding: 2rem 1rem;
    }
    
    .invest-calc-wrapper .calc-title {
        font-size: 2rem;
    }
    
    .invest-calc-wrapper .quick-stats {
        grid-template-columns: 1fr;
    }
    
    .invest-calc-wrapper .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .invest-calc-wrapper .formula-variables {
        grid-template-columns: 1fr;
    }
    
    .invest-calc-wrapper .formula {
        font-size: 0.9rem;
        padding: 1rem;
    }
    
    .invest-calc-wrapper .early-start-grid {
        grid-template-columns: 1fr;
    }
    
    .invest-calc-wrapper .vs-divider {
        text-align: center;
    }
    
    .invest-calc-wrapper .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .invest-calc-wrapper .returns-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .invest-calc-wrapper .calc-title {
        font-size: 1.75rem;
    }
    
    .invest-calc-wrapper .main-result .result-value {
        font-size: 2rem;
    }
    
    .invest-calc-wrapper .breakdown-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .invest-calc-wrapper .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .invest-calc-wrapper .data-table th,
    .invest-calc-wrapper .data-table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.8rem;
    }
}