/**
 * Digital Asset Loan Calculator Styles
 * Designed for dark backgrounds (#001E3C)
 */

/* Reset and Base Styles */
.loan-calculator-wrapper {
    --calc-text-primary: #ffffff;
    --calc-text-secondary: rgba(255, 255, 255, 0.7);
    --calc-text-muted: rgba(255, 255, 255, 0.5);
    --calc-border: rgba(255, 255, 255, 0.2);
    --calc-border-focus: rgba(255, 255, 255, 0.5);
    --calc-input-bg: rgba(255, 255, 255, 0.08);
    --calc-input-bg-hover: rgba(255, 255, 255, 0.12);
    --calc-accent: #F7931A;
    --calc-accent-glow: rgba(247, 147, 26, 0.3);
    --calc-result-bg: rgba(247, 147, 26, 0.15);
    --calc-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    
    font-family: var(--calc-font-family);
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
}

.loan-calculator-wrapper *,
.loan-calculator-wrapper *::before,
.loan-calculator-wrapper *::after {
    box-sizing: border-box;
}

/* Calculator Container */
.loan-calculator {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* BTC Price Display */
.calc-btc-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--calc-input-bg);
    border: 1px solid var(--calc-border);
    border-radius: 8px;
    margin-bottom: 4px;
}

.calc-btc-price__label {
    font-size: 14px;
    font-weight: 500;
    color: var(--calc-text-secondary);
}

.calc-btc-price__value {
    font-size: 16px;
    font-weight: 700;
    color: var(--calc-accent);
}

.calc-btc-price__value.is-loading {
    color: var(--calc-text-muted);
    font-weight: 500;
}

.calc-btc-price__value.has-error {
    color: #ff6b6b;
}

/* Field Styles */
.calc-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.calc-field__label {
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--calc-text-secondary);
}

.calc-field__input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--calc-input-bg);
    border: 1px solid var(--calc-border);
    border-radius: 12px;
    padding: 16px 20px;
    transition: all 0.2s ease;
}

.calc-field__input-wrapper:hover {
    background: var(--calc-input-bg-hover);
    border-color: var(--calc-border-focus);
}

.calc-field__input-wrapper:focus-within {
    border-color: var(--calc-accent);
    box-shadow: 0 0 0 3px var(--calc-accent-glow);
}

/* Input Field */
.calc-field__input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 28px;
    font-weight: 600;
    color: var(--calc-text-primary);
    font-family: var(--calc-font-family);
    width: 100%;
    min-width: 0;
}

.calc-field__input::placeholder {
    color: var(--calc-text-muted);
}

.calc-field__input::-webkit-outer-spin-button,
.calc-field__input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.calc-field__input[type=number] {
    -moz-appearance: textfield;
}

/* Currency Badge */
.calc-field__currency {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--calc-text-primary);
    padding-left: 16px;
    border-left: 1px solid var(--calc-border);
    margin-left: 16px;
    white-space: nowrap;
}

.calc-field__icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Select Field */
.calc-field__select {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 28px;
    font-weight: 600;
    color: var(--calc-text-primary);
    font-family: var(--calc-font-family);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.7)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0 center;
    background-size: 24px;
    padding-right: 32px;
}

.calc-field__select option {
    background: #001E3C;
    color: var(--calc-text-primary);
    font-size: 18px;
    padding: 10px;
}

/* Static Currency Display */
.calc-field__input-wrapper--static {
    cursor: default;
}

.calc-field__currency-display {
    font-size: 28px;
    font-weight: 600;
    color: var(--calc-text-primary);
}

/* Result Field */
.calc-field--result .calc-field__input-wrapper {
    background: var(--calc-result-bg);
    border-color: var(--calc-accent);
}

.calc-field--result .calc-field__input-wrapper:hover {
    background: var(--calc-result-bg);
}

.calc-field__input-wrapper--result {
    justify-content: space-between;
}

.calc-field__result {
    font-size: 32px;
    font-weight: 700;
    color: var(--calc-text-primary);
    letter-spacing: -0.02em;
}

.calc-field__result.loading {
    opacity: 0.5;
}

.calc-field__currency-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--calc-text-secondary);
    padding-left: 16px;
    border-left: 1px solid var(--calc-border);
    margin-left: 16px;
}

/* Disclaimer */
.calc-disclaimer {
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--calc-border);
}

.calc-disclaimer p {
    font-size: 11px;
    line-height: 1.5;
    color: var(--calc-text-muted);
    margin: 0;
    font-style: italic;
}

/* Loading State */
.loan-calculator.is-loading .calc-field__result {
    position: relative;
    color: transparent;
}

.loan-calculator.is-loading .calc-field__result::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border: 2px solid var(--calc-border);
    border-top-color: var(--calc-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translateY(-50%) rotate(360deg);
    }
}

/* Error State */
.loan-calculator.has-error .calc-field__result {
    color: #ff6b6b;
    font-size: 14px;
}

/* Responsive Adjustments */
@media (max-width: 480px) {
    .loan-calculator-wrapper {
        padding: 16px 0px;
    }
    
    .calc-btc-price {
        flex-direction: column;
        gap: 4px;
        padding: 10px 14px;
    }
    
    .calc-btc-price__label {
        font-size: 12px;
    }
    
    .calc-btc-price__value {
        font-size: 18px;
    }
    
    .calc-field__input,
    .calc-field__select,
    .calc-field__currency-display {
        font-size: 22px;
    }
    
    .calc-field__result {
        font-size: 26px;
    }
    
    .calc-field__input-wrapper {
        padding: 14px 16px;
    }
    
    .calc-field__currency,
    .calc-field__currency-label {
        font-size: 14px;
        padding-left: 12px;
        margin-left: 12px;
    }
    
    .calc-field__icon {
        width: 20px;
        height: 20px;
    }
}

/* Focus visible for accessibility */
.calc-field__input:focus-visible,
.calc-field__select:focus-visible {
    outline: none;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .loan-calculator-wrapper {
        --calc-border: rgba(255, 255, 255, 0.5);
        --calc-text-secondary: rgba(255, 255, 255, 0.9);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .loan-calculator.is-loading .calc-field__result::after {
        animation: none;
    }
    
    .calc-field__input-wrapper {
        transition: none;
    }
}