/* ==============================================
   Subscription Cost Calculator - Styles
   Uses CSS variables from main.css for dark/light mode
   ============================================== */

/* ==============================================
   1. Tool Layout
   ============================================== */
.sub-calc-tool {
    padding: calc(var(--space-16) + 60px) 0 var(--space-16);
}

.sub-calc-hero {
    text-align: center;
    margin-bottom: var(--space-10);
}

.sub-calc-hero h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    line-height: var(--leading-tight);
}

.sub-calc-hero p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

.sub-calc-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-sm);
}

/* ==============================================
   2. Template Bar
   ============================================== */
.sub-template-bar {
    margin-bottom: var(--space-8);
}

.sub-template-bar h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--border);
}

.sub-template-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.sub-template-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    background: var(--background);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
}

.sub-template-btn:hover {
    background: var(--surface);
    border-color: var(--border);
}

.sub-template-name {
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.sub-template-price {
    color: var(--text-secondary);
    font-size: var(--text-xs);
}

/* ==============================================
   3. Subscription List Section
   ============================================== */
.sub-list-section {
    margin-bottom: var(--space-6);
}

.sub-list-section h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--border);
}

/* Column headers */
.sub-list-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0 0 var(--space-2) 0;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sub-hdr-name {
    flex: 1;
    min-width: 0;
}

.sub-hdr-price {
    width: 130px;
    flex-shrink: 0;
}

.sub-hdr-cat {
    width: 120px;
    flex-shrink: 0;
}

.sub-hdr-shared {
    width: 52px;
    flex-shrink: 0;
    text-align: center;
}

.sub-hdr-people {
    width: 64px;
    flex-shrink: 0;
    text-align: center;
}

.sub-hdr-remove {
    width: 32px;
    flex-shrink: 0;
}

/* ==============================================
   4. Subscription Row
   ============================================== */
.sub-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--border-light);
}

.sub-row:last-child {
    border-bottom: none;
}

.sub-row .sub-input-name {
    flex: 1;
    min-width: 0;
}

.sub-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 130px;
    flex-shrink: 0;
}

.sub-input-wrapper .form-input {
    padding-right: var(--space-8);
}

.sub-currency {
    position: absolute;
    right: var(--space-3);
    color: var(--text-muted);
    font-size: var(--text-sm);
    pointer-events: none;
}

.sub-row .sub-input-cat {
    width: 120px;
    flex-shrink: 0;
    font-size: var(--text-sm);
}

.sub-row .sub-input-people {
    width: 64px;
    flex-shrink: 0;
    text-align: center;
    font-size: var(--text-sm);
}

.sub-row .sub-input-people:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* Toggle switch */
.sub-toggle-label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    flex-shrink: 0;
    cursor: pointer;
}

.sub-toggle-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.sub-toggle-switch {
    position: relative;
    width: 40px;
    height: 22px;
    background: var(--border);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.sub-toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--surface);
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.sub-toggle-label input:checked + .sub-toggle-switch {
    background: var(--primary);
}

.sub-toggle-label input:checked + .sub-toggle-switch::after {
    transform: translateX(18px);
}

/* Remove button */
.sub-btn-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast);
    flex-shrink: 0;
}

.sub-btn-remove:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

/* Add button */
.sub-btn-add {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--primary);
    background: transparent;
    border: 1px dashed var(--primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    margin-top: var(--space-3);
}

.sub-btn-add:hover {
    background: var(--primary-light);
}

.sub-btn-add svg {
    width: 16px;
    height: 16px;
}

/* ==============================================
   5. Calculate Button
   ============================================== */
.sub-calc-calculate-btn {
    display: block;
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-inverse);
    background: var(--primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    margin-top: var(--space-6);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.sub-calc-calculate-btn:hover {
    background: var(--primary-hover);
}

.sub-calc-calculate-btn:active {
    transform: scale(0.99);
}

/* ==============================================
   6. Result Card
   ============================================== */
.sub-calc-result {
    display: none;
}

.sub-calc-result.visible {
    display: block;
}

/* Insight banner */
.sub-insight-banner {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--primary-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-6);
    font-size: var(--text-sm);
    color: var(--primary-dark);
    font-weight: var(--font-medium);
}

.sub-insight-banner svg {
    flex-shrink: 0;
    color: var(--primary);
}

/* ==============================================
   7. Summary Stat Cards
   ============================================== */
.sub-summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.sub-summary-stat {
    padding: var(--space-5);
    background: var(--background);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    text-align: center;
}

.sub-summary-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sub-summary-value {
    display: block;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: var(--leading-tight);
}

/* Shock factor card */
.sub-shock {
    background: rgba(239, 68, 68, 0.06);
    border-color: rgba(239, 68, 68, 0.2);
}

.sub-shock .sub-summary-value {
    color: #EF4444;
}

.sub-shock-text {
    display: block;
    font-size: var(--text-xs);
    color: var(--error);
    margin-top: var(--space-2);
    font-weight: var(--font-medium);
}

/* Savings card */
.sub-savings {
    background: rgba(16, 185, 129, 0.06);
    border-color: rgba(16, 185, 129, 0.2);
}

.sub-savings .sub-summary-value {
    color: var(--secondary);
}

/* ==============================================
   8. Donut Chart & Category Breakdown
   ============================================== */
.sub-breakdown-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-8);
    align-items: start;
    margin-bottom: var(--space-6);
}

.sub-donut-container {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sub-donut-svg {
    width: 200px;
    height: 200px;
}

.sub-donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.sub-donut-total {
    display: block;
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: var(--leading-tight);
}

.sub-donut-sublabel {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Category list */
.sub-category-list {
    min-width: 0;
}

.sub-category-list h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0 0 var(--space-4) 0;
}

.sub-category-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--border-light);
}

.sub-category-row:last-child {
    border-bottom: none;
}

.sub-category-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sub-category-name {
    flex: 1;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.sub-category-amount {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.sub-category-percent {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    width: 48px;
    text-align: right;
}

/* ==============================================
   9. Error Message
   ============================================== */
.sub-error {
    padding: var(--space-4);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: var(--radius-md);
    color: var(--error);
    font-weight: var(--font-medium);
    text-align: center;
}

/* ==============================================
   10. SEO Content, FAQ & CTA (reuses patterns)
   ============================================== */
.sub-calc-seo-content {
    padding: var(--space-16) 0;
}

.sub-calc-seo-content h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin: 0 0 var(--space-4) 0;
}

.sub-calc-seo-content p {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
    max-width: 720px;
}

.sub-calc-faq {
    margin-top: var(--space-10);
}

.sub-calc-faq h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin: 0 0 var(--space-6) 0;
}

.sub-calc-faq .faq-answer p {
    padding: 0 var(--space-6) var(--space-6);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin: 0;
    max-width: none;
}

.sub-calc-faq .faq-question svg {
    flex-shrink: 0;
    transition: transform var(--transition-normal);
    color: var(--text-muted);
}

.sub-calc-faq .faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

/* CTA */
.sub-calc-cta {
    text-align: center;
    padding: var(--space-10) var(--space-8);
    background: var(--primary-light);
    border-radius: var(--radius-xl);
    margin-top: var(--space-10);
}

.sub-calc-cta h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin: 0 0 var(--space-3) 0;
}

.sub-calc-cta p {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin: 0 auto var(--space-6);
    max-width: 480px;
}

/* ==============================================
   11. Responsive
   ============================================== */
@media (max-width: 768px) {
    .sub-calc-tool {
        padding: calc(var(--space-12) + 56px) 0 var(--space-12);
    }

    .sub-calc-hero h1 {
        font-size: var(--text-2xl);
    }

    .sub-calc-hero p {
        font-size: var(--text-base);
    }

    .sub-calc-card {
        padding: var(--space-4);
    }

    /* Hide column headers on mobile */
    .sub-list-header {
        display: none;
    }

    /* Stack subscription rows vertically */
    .sub-row {
        flex-wrap: wrap;
        gap: var(--space-2);
        padding: var(--space-3) 0;
    }

    .sub-row .sub-input-name {
        flex: 1 1 100%;
    }

    .sub-input-wrapper {
        width: 110px;
    }

    .sub-row .sub-input-cat {
        width: 100px;
    }

    .sub-row .sub-input-people {
        width: 56px;
    }

    .sub-toggle-label {
        width: 44px;
    }

    /* Donut chart layout */
    .sub-breakdown-grid {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .sub-category-list {
        width: 100%;
    }

    /* Summary cards */
    .sub-summary-cards {
        grid-template-columns: 1fr 1fr;
    }

    /* Template buttons */
    .sub-template-buttons {
        gap: var(--space-1);
    }

    .sub-template-btn {
        padding: var(--space-1) var(--space-2);
        font-size: var(--text-xs);
    }
}

@media (max-width: 480px) {
    .sub-calc-hero h1 {
        font-size: var(--text-xl);
    }

    .sub-calc-card {
        padding: var(--space-3);
        border-radius: var(--radius-md);
    }

    .sub-summary-cards {
        grid-template-columns: 1fr;
    }

    .sub-summary-stat {
        padding: var(--space-3);
    }

    .sub-summary-value {
        font-size: var(--text-xl);
    }

    .sub-donut-container {
        width: 160px;
        height: 160px;
    }

    .sub-donut-svg {
        width: 160px;
        height: 160px;
    }

    .sub-donut-total {
        font-size: var(--text-base);
    }

    .sub-row .sub-input-cat {
        flex: 1 1 100%;
        width: auto;
    }
}

/* ==============================================
   12. Print
   ============================================== */
@media print {
    .sub-calc-card:first-of-type {
        display: none;
    }

    .sub-calc-result {
        display: block !important;
    }

    .fs-result-actions {
        display: none;
    }

    .sub-insight-banner {
        border: 1px solid #ccc;
        background: #f9f9f9;
    }

    .sub-shock {
        border: 2px solid #EF4444;
    }

    .sub-savings {
        border: 2px solid #10B981;
    }
}