/* ============================================================================
   CALCULATORS CSS — Shared styles for calculator hub and individual pages
   ============================================================================ */

:root {
    --calc-primary: #2563eb;
    --calc-success: #10b981;
    --calc-danger: #ef4444;
    --calc-warning: #f59e0b;
    --calc-text: #334155;
    --calc-text-light: #64748b;
    --calc-bg: #ffffff;
    --calc-border: #e5e7eb;
    --calc-radius: 8px;
}

/* ---- Hero ---- */
.calculator-hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(99, 102, 241, 0.04));
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.calculator-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.calculator-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.calculator-hero p {
    font-size: 1.125rem;
    color: var(--calc-text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ---- Hub Grid ---- */
.calculator-hub-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 3rem 0;
}

.calc-hub-card {
    background: var(--calc-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: inherit;
    display: block;
    border: 1px solid var(--calc-border);
    position: relative;
    overflow: hidden;
}

.calc-hub-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #818cf8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.calc-hub-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -10px rgba(37, 99, 235, 0.2), 0 0 0 1px rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.3);
}

.calc-hub-card:hover::before {
    transform: scaleX(1);
}

.calc-hub-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(99, 102, 241, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--calc-primary);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    position: relative;
}

.calc-hub-card:hover .calc-hub-card-icon {
    background: linear-gradient(135deg, #2563eb, #818cf8);
    color: white;
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 8px 16px -4px rgba(37, 99, 235, 0.3);
}

.calc-hub-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.calc-hub-card p {
    font-size: 0.875rem;
    color: var(--calc-text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.calc-hub-card .card-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--calc-primary);
}

/* ---- Calculator Card (individual pages) ---- */
.calculator-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 40px -10px rgba(37, 99, 235, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
    border-top: 4px solid transparent;
    background-image: linear-gradient(white, white), linear-gradient(90deg, #2563eb, #818cf8);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    padding: 2rem;
    margin: 2rem 0;
    transition: all 0.3s ease;
}

.calculator-card:hover {
    box-shadow: 0 20px 50px -15px rgba(37, 99, 235, 0.25), 0 0 0 1px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

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

.calculator-input-group {
    margin-bottom: 1.25rem;
}

.calculator-input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #334155;
    font-size: 0.875rem;
}

.calculator-input-group input,
.calculator-input-group select,
.calculator-input-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
    background: #fafbfc;
}

.calculator-input-group input:hover,
.calculator-input-group select:hover,
.calculator-input-group textarea:hover {
    border-color: #cbd5e1;
    background: #ffffff;
}

.calculator-input-group input:focus,
.calculator-input-group select:focus,
.calculator-input-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12), 0 1px 3px rgba(0, 0, 0, 0.05);
    background: #ffffff;
    transform: translateY(-1px);
}

.calculator-input-group textarea {
    min-height: 150px;
    resize: vertical;
    font-family: 'Inter', monospace;
}

.input-hint {
    font-size: 0.75rem;
    color: var(--calc-text-light);
    margin-top: 0.25rem;
}

/* ---- Results ---- */
.results-panel h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--calc-primary);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 1rem;
    border-bottom: 1px solid #f3f4f6;
    transition: all 0.2s ease;
    border-radius: 8px;
    margin-bottom: 0.25rem;
}

.result-item:hover {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.02), transparent);
    padding-left: 1.25rem;
}

.result-label {
    color: #64748b;
    font-size: 0.875rem;
    font-weight: 500;
}

.result-value {
    font-weight: 700;
    font-size: 1.125rem;
    color: #1e293b;
    transition: transform 0.2s ease;
}

.result-item:hover .result-value {
    transform: scale(1.05);
}

.result-value.positive {
    color: #10b981;
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}
.result-value.negative {
    color: #ef4444;
    text-shadow: 0 0 20px rgba(239, 68, 68, 0.15);
}
.result-value.highlight {
    color: #2563eb;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #2563eb, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.result-value.neutral {
    color: #2563eb;
}

/* ---- Toggle (uptrend / downtrend) ---- */
.toggle-group {
    display: flex;
    border: 1px solid var(--calc-border);
    border-radius: 8px;
    overflow: hidden;
}

.toggle-group button {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    background: #f9fafb;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--calc-text-light);
}

.toggle-group button.active {
    background: var(--calc-primary);
    color: #fff;
}

/* ---- Levels Table (Fibonacci, Pivot) ---- */
.levels-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.levels-table th,
.levels-table td {
    padding: 0.625rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.875rem;
}

.levels-table th {
    font-weight: 600;
    color: var(--calc-text-light);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.levels-table tr.key-level {
    background-color: rgba(37, 99, 235, 0.04);
    font-weight: 600;
}

.levels-table .level-bar {
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--calc-primary), #818cf8);
    min-width: 10px;
}

/* ---- Visual Bars (risk/reward) ---- */
.rr-visual {
    display: flex;
    border-radius: 8px;
    overflow: hidden;
    height: 32px;
    margin: 1rem 0;
}

.rr-visual .risk-bar {
    background: var(--calc-danger);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 30px;
}

.rr-visual .reward-bar {
    background: var(--calc-success);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 30px;
}

/* ---- RSI Gauge ---- */
.rsi-gauge {
    position: relative;
    height: 40px;
    border-radius: 20px;
    background: linear-gradient(90deg, #10b981 0%, #10b981 30%, #f59e0b 30%, #f59e0b 70%, #ef4444 70%, #ef4444 100%);
    margin: 1.5rem 0;
    overflow: visible;
}

.rsi-gauge-marker {
    position: absolute;
    top: -6px;
    width: 4px;
    height: 52px;
    background: #1e293b;
    border-radius: 2px;
    transform: translateX(-50%);
    transition: left 0.3s ease;
}

.rsi-gauge-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--calc-text-light);
    margin-top: 0.5rem;
}

/* ---- Chart Container ---- */
.calc-chart-container {
    margin: 1.5rem 0;
    position: relative;
    height: 300px;
}

.calc-chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ---- Year Table (Compound) ---- */
.year-table-wrapper {
    max-height: 400px;
    overflow-y: auto;
    margin: 1rem 0;
    border: 1px solid var(--calc-border);
    border-radius: 8px;
}

.year-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.year-table th {
    position: sticky;
    top: 0;
    background: #f8fafc;
    padding: 0.625rem 0.75rem;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--calc-text-light);
    border-bottom: 2px solid var(--calc-border);
}

.year-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid #f3f4f6;
}

/* ---- Educational Content ---- */
.calc-content-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.calc-content-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin: 2.5rem 0 1rem;
}

.calc-content-section p {
    color: var(--calc-text);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.calc-content-section ul,
.calc-content-section ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
    color: var(--calc-text);
    line-height: 1.8;
}

.calc-content-section li {
    margin-bottom: 0.5rem;
}

/* ---- FAQ ---- */
.calc-faq-section {
    max-width: 800px;
    margin: 2rem auto;
}

.calc-faq-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.calc-faq-item {
    border: 2px solid var(--calc-border);
    border-radius: 12px;
    margin-bottom: 0.875rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.calc-faq-item:hover {
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.calc-faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f9fafb, #ffffff);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    width: 100%;
    text-align: left;
    color: #1e293b;
}

.calc-faq-question:hover {
    background: linear-gradient(135deg, #f3f4f6, #fafbfc);
    padding-left: 1.75rem;
}

.calc-faq-item.active .calc-faq-question {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(99, 102, 241, 0.03));
    color: #2563eb;
}

.calc-faq-question i {
    transition: transform 0.3s ease;
    color: var(--calc-text-light);
}

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

.calc-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.calc-faq-item.active .calc-faq-answer {
    max-height: 500px;
}

.calc-faq-answer p {
    padding: 1rem 1.25rem;
    color: var(--calc-text);
    line-height: 1.7;
    margin: 0;
}

/* ---- Related Calculators ---- */
.related-calculators {
    margin: 3rem 0;
}

.related-calculators h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    display: inline-block;
    width: 100%;
}

.related-calculators h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #818cf8);
    border-radius: 3px;
}

.related-calculators-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.related-calc-card {
    background: linear-gradient(135deg, #ffffff, #fafbfc);
    border-radius: 12px;
    padding: 1.75rem;
    text-decoration: none;
    color: inherit;
    border: 2px solid var(--calc-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.related-calc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #818cf8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.related-calc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
    background: #ffffff;
}

.related-calc-card:hover::before {
    transform: scaleX(1);
}

.related-calc-card i {
    font-size: 1.75rem;
    color: var(--calc-primary);
    margin-bottom: 0.875rem;
    display: inline-block;
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
    line-height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(99, 102, 241, 0.05));
}

.related-calc-card:hover i {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, #2563eb, #818cf8);
    color: white;
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.25);
}

.related-calc-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.related-calc-card:hover h4 {
    color: #2563eb;
}

.related-calc-card p {
    font-size: 0.8125rem;
    color: var(--calc-text-light);
    line-height: 1.6;
}

/* ---- CTA Section ---- */
.calc-cta {
    text-align: center;
    padding: 3.5rem 2rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(99, 102, 241, 0.04));
    border-radius: 16px;
    margin: 3rem 0;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(37, 99, 235, 0.1);
    box-shadow: 0 10px 30px -10px rgba(37, 99, 235, 0.1);
}

.calc-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.calc-cta h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.calc-cta p {
    color: var(--calc-text-light);
    margin-bottom: 1.75rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.0625rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ---- Why Section (hub) ---- */
.why-calculators {
    padding: 3rem 0;
}

.why-calc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.why-calc-item {
    text-align: center;
    padding: 1.5rem;
}

.why-calc-item i {
    font-size: 2rem;
    color: var(--calc-primary);
    margin-bottom: 1rem;
}

.why-calc-item h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.why-calc-item p {
    font-size: 0.875rem;
    color: var(--calc-text-light);
    line-height: 1.6;
}

/* ---- Cross-links ---- */
.cross-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin: 3rem 0;
}

.cross-link-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--calc-bg);
    border: 1px solid var(--calc-border);
    border-radius: 10px;
    text-decoration: none;
    color: #1e293b;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cross-link-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.cross-link-card i {
    font-size: 1.25rem;
    color: var(--calc-primary);
}

/* ---- AdSense Container ---- */
.adsense-container {
    margin: 3rem 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02), rgba(99, 102, 241, 0.01));
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: 8px;
    text-align: center;
}

.adsense-container .ad-label {
    font-size: 0.75rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---- Breadcrumb ---- */
.calc-breadcrumb {
    padding: 1rem 0;
    font-size: 0.875rem;
    background-color: #f9fafb;
    border-bottom: 1px solid #e5e7eb;
}

.calc-breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
}

.calc-breadcrumb a {
    color: #2563eb;
    text-decoration: none;
}

.calc-breadcrumb a:hover {
    text-decoration: underline;
}

.calc-breadcrumb .current {
    color: #111827;
    font-weight: 500;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .calculator-hero h1 {
        font-size: 1.75rem;
    }

    .calculator-grid {
        grid-template-columns: 1fr;
    }

    .calculator-hub-grid {
        grid-template-columns: 1fr;
    }

    .related-calculators-grid {
        grid-template-columns: 1fr;
    }

    .why-calc-grid {
        grid-template-columns: 1fr;
    }

    .cross-links {
        grid-template-columns: 1fr;
    }

    .calculator-card {
        padding: 1.25rem;
    }

    .rr-visual {
        height: 24px;
    }
}

@media (max-width: 480px) {
    .calculator-hero {
        padding: 6rem 0 3rem;
    }

    .calculator-hero h1 {
        font-size: 1.5rem;
    }

    .calculator-hero p {
        font-size: 1rem;
    }

    .result-value.highlight {
        font-size: 1.25rem;
    }
}

/* ---- Animations ---- */
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Visual Bars ---- */
.position-bar-container,
.profit-loss-visual {
    animation: fadeInUp 0.6s ease;
}

/* ---- Print ---- */
@media print {
    .header, .mobile-menu, .footer, .adsense-container,
    .related-calculators, .calc-cta, .calc-breadcrumb,
    .position-bar-container, .profit-loss-visual {
        display: none !important;
    }

    .calculator-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .calculator-hero {
        background: none;
        padding: 1rem 0;
    }
}