/* ============================================
   FX OPTION CALCULATOR - STYLES
   ============================================ */

/* Hero */
.calc-hero {
    padding: 140px 48px 60px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.calc-hero .section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--terminal-accent);
    margin-bottom: 16px;
}

.calc-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    color: var(--terminal-text-primary);
}

.calc-hero-subtitle {
    font-size: 1.1rem;
    color: var(--terminal-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Main Layout */
.calc-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

/* Market Data Panel */
.calc-market-panel {
    background: var(--terminal-surface);
    border: 1px solid var(--terminal-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    position: relative;
}

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

.panel-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--terminal-text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-header h2 i {
    color: var(--terminal-accent);
    font-size: 1rem;
}

.ecb-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 4px 10px;
    background: var(--terminal-accent-light);
    color: var(--terminal-accent);
    border-radius: 20px;
    border: 1px solid rgba(255, 107, 53, 0.3);
    letter-spacing: 0.5px;
}

.market-data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.market-field label {
    display: block;
    font-size: 0.75rem;
    color: var(--terminal-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
    font-family: var(--font-mono);
}

.market-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--terminal-text-primary);
}

.market-value-sm {
    font-size: 0.9rem;
    color: var(--terminal-text-secondary);
}

.market-source {
    font-size: 0.65rem;
    color: var(--terminal-accent);
    font-weight: 400;
    letter-spacing: 0.5px;
}

.market-loading {
    text-align: center;
    padding: 16px;
    color: var(--terminal-accent);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Two-Column Panels */
.calc-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.calc-panel {
    background: var(--terminal-surface);
    border: 1px solid var(--terminal-border);
    border-radius: 12px;
    padding: 24px;
}

/* Forms */
.calc-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-size: 0.75rem;
    color: var(--terminal-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
}

.form-group input,
.calc-select {
    background: var(--terminal-bg-secondary);
    border: 1px solid var(--terminal-border);
    border-radius: 6px;
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--terminal-text-primary);
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.calc-select:focus {
    border-color: var(--terminal-accent);
}

.calc-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a1a1a1' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: calc(100% - 10px) center;
    padding-right: 30px;
}

.calc-select option,
.calc-select optgroup {
    background: var(--terminal-bg-secondary);
    color: var(--terminal-text-primary);
}

.calc-select-sm {
    padding: 4px 8px;
    font-size: 0.8rem;
}

.form-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.form-actions .btn {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-accent {
    background: var(--terminal-accent);
    color: #000;
}

.btn-accent:hover {
    background: var(--terminal-accent-hover);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--terminal-border);
    color: var(--terminal-text-secondary);
}

.btn-outline:hover {
    border-color: var(--terminal-accent);
    color: var(--terminal-accent);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* Results */
.calc-results {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--terminal-border);
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.result-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--terminal-text-primary);
}

.result-model {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 2px 8px;
    background: var(--terminal-bg-tertiary);
    color: var(--terminal-accent);
    border-radius: 4px;
    border: 1px solid var(--terminal-border);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}

.result-item {
    background: var(--terminal-bg-secondary);
    border: 1px solid var(--terminal-border);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}

.result-item.result-primary {
    border-color: rgba(255, 107, 53, 0.3);
}

.result-label {
    display: block;
    font-size: 0.7rem;
    color: var(--terminal-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-mono);
    margin-bottom: 4px;
}

.result-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--terminal-text-primary);
}

/* Greeks */
.greeks-panel h4 {
    font-size: 0.85rem;
    color: var(--terminal-text-secondary);
    margin-bottom: 8px;
}

.greeks-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.greek-item {
    background: var(--terminal-bg-secondary);
    border: 1px solid var(--terminal-border);
    border-radius: 6px;
    padding: 10px 6px;
    text-align: center;
}

.greek-symbol {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--terminal-accent);
    margin-bottom: 2px;
}

.greek-name {
    display: block;
    font-size: 0.65rem;
    color: var(--terminal-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.greek-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--terminal-text-primary);
    font-weight: 500;
}

/* Monte Carlo Stats */
.mc-stats {
    margin-top: 8px;
}

/* Comparison Table */
.compare-table {
    overflow-x: auto;
}

.compare-table table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.compare-table th {
    text-align: left;
    padding: 8px 12px;
    color: var(--terminal-text-tertiary);
    border-bottom: 1px solid var(--terminal-border);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.compare-table td {
    padding: 10px 12px;
    color: var(--terminal-text-primary);
    border-bottom: 1px solid var(--terminal-border-light);
}

.compare-table tr:hover td {
    background: var(--terminal-bg-secondary);
}

/* Charts Section */
.calc-charts {
    background: var(--terminal-surface);
    border: 1px solid var(--terminal-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.charts-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--terminal-border);
    padding-bottom: 12px;
}

.chart-tab {
    background: none;
    border: none;
    padding: 8px 16px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--terminal-text-tertiary);
    cursor: pointer;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.chart-tab:hover {
    color: var(--terminal-text-secondary);
    background: var(--terminal-bg-secondary);
}

.chart-tab.active {
    color: var(--terminal-accent);
    background: var(--terminal-accent-light);
}

.chart-container {
    position: relative;
    min-height: 350px;
}

.chart-container canvas {
    width: 100% !important;
    max-height: 400px;
}

.chart-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--terminal-text-tertiary);
}

.chart-placeholder i {
    font-size: 2.5rem;
    margin-bottom: 12px;
    display: block;
    opacity: 0.4;
}

.chart-placeholder p {
    font-size: 0.9rem;
}

.sensitivity-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.sensitivity-controls label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--terminal-text-tertiary);
    text-transform: uppercase;
}

/* Info Cards */
.calc-info-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.info-card {
    background: var(--terminal-surface);
    border: 1px solid var(--terminal-border);
    border-radius: 12px;
    padding: 24px;
    transition: border-color var(--transition-base);
}

.info-card:hover {
    border-color: rgba(255, 107, 53, 0.4);
}

.info-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--terminal-accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.info-card-icon i {
    color: var(--terminal-accent);
    font-size: 1.1rem;
}

.info-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--terminal-text-primary);
}

.info-card p {
    font-size: 0.85rem;
    color: var(--terminal-text-secondary);
    line-height: 1.5;
}

/* Footer */
.calc-footer {
    text-align: center;
    padding: 40px 24px;
    border-top: 1px solid var(--terminal-border);
    color: var(--terminal-text-tertiary);
    font-size: 0.8rem;
    line-height: 1.8;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .calc-panels {
        grid-template-columns: 1fr;
    }

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

    .greeks-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .calc-hero {
        padding: 120px 20px 40px;
    }

    .calc-main {
        padding: 0 16px 60px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .greeks-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .charts-tabs {
        flex-wrap: wrap;
    }

    .market-data-grid {
        grid-template-columns: 1fr 1fr;
    }
}