/**
 * Frontend Styles for Currency Converter (Kardeu Suite)
 * Scoped & Zero-Theme-Bleeding (rules.md §4D, §8A, §9)
 */

.kardeu-currency-switcher {
    position: relative;
    display: inline-block;
    font-family: var(--kardeu-font-body, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
    font-size: var(--kardeu-cur-font-size, 13px);
    z-index: 100;
    vertical-align: middle;
}

/* Tamanhos Predefinidos (Presets) */
.kardeu-currency-switcher.size-small {
    --kardeu-cur-font-size: 11.5px;
    --kardeu-cur-height: 28px;
    --kardeu-cur-pad-x: 8px;
}

.kardeu-currency-switcher.size-medium {
    --kardeu-cur-font-size: 13px;
    --kardeu-cur-height: 32px;
    --kardeu-cur-pad-x: 10px;
}

.kardeu-currency-switcher.size-large {
    --kardeu-cur-font-size: 15px;
    --kardeu-cur-height: 38px;
    --kardeu-cur-pad-x: 12px;
}

/* Switcher Button Trigger (Otimizado para Cabeçalho e Menus - Design Limpo) */
.kardeu-switcher-btn {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: calc(var(--kardeu-cur-font-size, 13px) * 0.45);
    background: #FFFFFF;
    color: #1E293B;
    border: 1px solid #E2E8F0;
    padding: 0 var(--kardeu-cur-pad-x, calc(var(--kardeu-cur-height, 32px) * 0.3));
    border-radius: 6px;
    cursor: pointer;
    font-size: var(--kardeu-cur-font-size, 13px);
    font-weight: 500;
    line-height: 1.2;
    height: var(--kardeu-cur-height, 32px);
    min-height: var(--kardeu-cur-height, 32px);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    outline: none;
    -webkit-tap-highlight-color: transparent;
    box-sizing: border-box;
}

.kardeu-switcher-btn:hover,
.kardeu-switcher-btn:focus-visible {
    border-color: #CBD5E1;
    color: #0F172A;
}

/* Style Variations */
.kardeu-currency-switcher.style-pill .kardeu-switcher-btn {
    border-radius: 9999px;
    padding-left: calc(var(--kardeu-cur-height, 32px) * 0.38);
    padding-right: calc(var(--kardeu-cur-height, 32px) * 0.38);
}

.kardeu-currency-switcher.style-minimal .kardeu-switcher-btn {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 6px;
}

/* Dropdown Container */
.kardeu-switcher-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 100%;
    width: max-content;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 6px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    opacity: 0;
    visibility: hidden;
    transform: translateY(4px);
    transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 99999;
    padding: 4px;
}

.kardeu-currency-switcher.is-open .kardeu-switcher-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Options */
.kardeu-switcher-dropdown-inner {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 280px;
    overflow-y: auto;
}

.kardeu-cur-option {
    display: flex;
    align-items: center;
    gap: calc(var(--kardeu-cur-font-size, 13px) * 0.4);
    width: 100%;
    padding: 4px var(--kardeu-cur-pad-x, 10px);
    border: none;
    background: transparent;
    border-radius: 4px;
    font-size: var(--kardeu-cur-font-size, 13px);
    color: #1E293B;
    cursor: pointer;
    text-align: left;
    transition: background 0.12s ease, color 0.12s ease;
    min-height: max(26px, calc(var(--kardeu-cur-height, 32px) - 2px));
    white-space: nowrap;
    box-sizing: border-box;
}

.kardeu-cur-option:hover:not(.is-active),
.kardeu-cur-option:focus-visible:not(.is-active) {
    background: #F8FAFC;
    color: #0F172A;
}

.kardeu-cur-option.is-active {
    background: #186ADC !important;
    color: #FFFFFF !important;
    font-weight: 600;
}

.kardeu-cur-option.is-active .kardeu-cur-code,
.kardeu-cur-option.is-active .kardeu-cur-symbol,
.kardeu-cur-option.is-active .kardeu-cur-name {
    color: #FFFFFF !important;
}

.kardeu-cur-code {
    font-size: var(--kardeu-cur-font-size, 13px);
    font-weight: 500;
    letter-spacing: 0.2px;
}

.kardeu-cur-symbol {
    font-size: var(--kardeu-cur-font-size, 13px);
    color: inherit;
}

.kardeu-cur-name {
    font-size: calc(var(--kardeu-cur-font-size, 13px) * 0.88);
    color: #64748B;
    margin-left: auto;
    padding-left: 6px;
}

.kardeu-caret-icon {
    width: max(8px, calc(var(--kardeu-cur-font-size, 13px) * 0.75));
    height: max(8px, calc(var(--kardeu-cur-font-size, 13px) * 0.75));
    stroke: #64748B;
    stroke-width: 2.5;
    margin-left: 2px;
    transition: transform 0.2s ease;
    flex-shrink: 0;
    display: inline-block;
    vertical-align: middle;
}

.kardeu-currency-switcher.is-open .kardeu-caret-icon {
    transform: rotate(180deg);
}

/* Spinner & Transição Rápida de Troca */
.kardeu-switcher-spinner {
    display: inline-block;
    width: max(10px, calc(var(--kardeu-cur-font-size, 13px) * 0.85));
    height: max(10px, calc(var(--kardeu-cur-font-size, 13px) * 0.85));
    border: 2px solid rgba(24, 106, 220, 0.2);
    border-top-color: #186ADC;
    border-radius: 50%;
    animation: kardeu-spin 0.6s linear infinite;
    flex-shrink: 0;
    vertical-align: middle;
}

.kardeu-switcher-btn .kardeu-switcher-spinner {
    margin-left: 4px;
}

.kardeu-cur-option .kardeu-switcher-spinner {
    margin-left: auto;
}

.kardeu-cur-option.is-active .kardeu-switcher-spinner {
    border-color: rgba(255, 255, 255, 0.35);
    border-top-color: #FFFFFF;
}

.kardeu-switcher-btn.is-loading .kardeu-caret-icon {
    display: none !important;
}

.kardeu-currency-switcher.is-switching {
    pointer-events: none !important;
}

.kardeu-currency-switcher.is-switching .kardeu-switcher-btn {
    border-color: #186ADC;
    background: #F8FAFC;
}

.kardeu-cur-option.is-switching {
    background: #EFF6FF;
}

@keyframes kardeu-spin {
    to { transform: rotate(360deg); }
}

/* Flags (SVG inline via CSS Data URIs para máxima performance e zero requests externas) */
.kardeu-flag-icon {
    display: inline-block;
    width: 18px;
    height: 13px;
    border-radius: 2px;
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08);
}

/* Flags mais comuns */
.flag-eu { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 810 540'%3E%3Cpath fill='%23039' d='M0 0h810v540H0z'/%3E%3Ccircle cx='405' cy='270' r='160' fill='none' stroke='%23fc0' stroke-width='16' stroke-dasharray='1 82'/%3E%3C/svg%3E"); }
.flag-us { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 741 390'%3E%3Cpath fill='%23b22234' d='M0 0h741v390H0z'/%3E%3Cpath stroke='%23fff' stroke-width='30' d='M0 45h741M0 105h741M0 165h741M0 225h741M0 285h741M0 345h741'/%3E%3Cpath fill='%233c3b6e' d='M0 0h296v210H0z'/%3E%3C/svg%3E"); }
.flag-gb { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 30'%3E%3Cpath fill='%23012169' d='M0 0h60v30H0z'/%3E%3Cpath stroke='%23fff' stroke-width='6' d='m0 0 60 30m0-30L0 30'/%3E%3Cpath stroke='%23C8102E' stroke-width='4' d='m0 0 60 30m0-30L0 30'/%3E%3Cpath stroke='%23fff' stroke-width='10' d='M30 0v30M0 15h60'/%3E%3Cpath stroke='%23C8102E' stroke-width='6' d='M30 0v30M0 15h60'/%3E%3C/svg%3E"); }
.flag-ch { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='%23f00' d='M0 0h32v32H0z'/%3E%3Cpath fill='%23fff' d='M13 6h6v20h-6zM6 13h20v6H6z'/%3E%3C/svg%3E"); }
.flag-br { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 720 504'%3E%3Cpath fill='%23009b3a' d='M0 0h720v504H0z'/%3E%3Cpath fill='%23fedf00' d='m360 48 300 204-300 204L60 252z'/%3E%3Ccircle cx='360' cy='252' r='100' fill='%23002776'/%3E%3C/svg%3E"); }
.flag-ca { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1000 500'%3E%3Cpath fill='%23f00' d='M0 0h250v500H0zm750 0h250v500H750z'/%3E%3Cpath fill='%23fff' d='M250 0h500v500H250z'/%3E%3C/svg%3E"); }
.flag-au { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1280 640'%3E%3Cpath fill='%2300008b' d='M0 0h1280v640H0z'/%3E%3C/svg%3E"); }
.flag-jp { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 900 600'%3E%3Cpath fill='%23fff' d='M0 0h900v600H0z'/%3E%3Ccircle cx='450' cy='300' r='180' fill='%23bc002d'/%3E%3C/svg%3E"); }

/* Mobile Adjustments (rules.md §8A) */
@media (max-width: 768px) {
    .kardeu-switcher-btn {
        min-height: max(30px, var(--kardeu-cur-height, 32px));
    }
    .kardeu-cur-option {
        min-height: max(32px, var(--kardeu-cur-height, 32px));
    }
}


/* Linha de Pagamento na Moeda Base no Checkout (Modo Referência - rules.md §9) */
.kardeu-currency-reference-payment {
    display: block;
    margin-top: 4px;
    font-size: 13px;
    font-weight: 400;
    color: #64748B;
    text-align: right;
    line-height: 1.4;
    white-space: nowrap;
}

.kardeu-currency-reference-payment .kardeu-ref-amount {
    font-weight: 500;
    color: #475569;
}