/**
 * PPP Calculator Styles v1.6.0
 * Mobile-first: base = mobile, min-width:769px = desktop
 * Desktop identical to v1.4.0
 */

/* === Variables === */
.ppp-calculator-container {
    --ppp-brand-color: #189ab4;
    --ppp-brand-hover: #1689a0;
    --ppp-text-color: #1e293b;
    --ppp-text-light: #64748b;
    --ppp-border-color: #e2e8f0;
    --ppp-bg-color: #f8fafc;
    --ppp-card-bg: #ffffff;
    --ppp-success-color: #28a745;
    --ppp-error-color: #e74c3c;
    --ppp-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    --ppp-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --ppp-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --ppp-transition: 0.2s ease;
}

/* ==============================================
   BASE = MOBILE (compact, clean, professional)
   ============================================== */

.ppp-calculator-container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto 0.75rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.4;
    color: var(--ppp-text-color);
}

.ppp-calculator-wrapper {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    padding: 0.75rem;
    transition: box-shadow var(--ppp-transition);
}

/* === Typography === */
.ppp-calc-title {
    font-size: 1.3rem !important;
    color: var(--ppp-text-color) !important;
    text-align: center;
    margin: 0 0 0.2rem 0 !important;
    padding: 0 !important;
    font-weight: 600 !important;
    line-height: 1.25 !important;
}

.ppp-title-flag {
    display: inline-block;
    font-size: 0.8em;
    vertical-align: middle;
    margin: 0 0.15rem;
}

.ppp-calc-subtitle {
    text-align: center;
    color: var(--ppp-text-light) !important;
    margin: 0 0 0.75rem 0 !important;
    padding: 0 !important;
    font-size: 0.78rem !important;
    font-weight: 400 !important;
    line-height: 1.35 !important;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

/* === World Bank Badge === */
.ppp-world-bank-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 4px 9px;
    border-radius: 14px;
    font-size: 0.6rem;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    box-shadow: 0 1px 4px rgba(16, 185, 129, 0.25);
    transition: all 0.3s ease;
}

.ppp-icon-shield::before {
    content: "✓";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 13px;
    height: 13px;
    background: white;
    color: #059669;
    border-radius: 50%;
    font-size: 8px;
    font-weight: bold;
}

.ppp-badge-text {
    font-size: 0.6rem;
    letter-spacing: 0.2px;
}

/* === Form === */
.ppp-calculator-form {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: 0.5rem;
}

/* === Country Row — stacked on mobile === */
.ppp-countries-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    align-items: start;
}

/* === Swap Button === */
.ppp-swap-button {
    align-self: center;
    margin: 0.5rem auto;
    background: linear-gradient(135deg, var(--ppp-brand-color) 0%, var(--ppp-brand-hover) 100%);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    box-shadow: 0 2px 8px rgba(24, 154, 180, 0.3);
    transition: all 0.3s ease;
    transform: rotate(90deg);
    flex-shrink: 0;
}

/* Hover only for devices with real hover (desktop) */
@media (hover: hover) {
    .ppp-swap-button:hover {
        transform: rotate(270deg) scale(1.1);
        box-shadow: 0 4px 12px rgba(24, 154, 180, 0.4);
    }
}

.ppp-swap-button:active {
    transform: rotate(270deg) scale(0.95);
}

/* Mobile tap rotation animation (JS controlled) */
.ppp-swap-button.ppp-swap-active {
    transform: rotate(270deg) scale(1.1);
}

/* Bold arrow lines */
.ppp-swap-button {
    -webkit-text-stroke: 1px white;
    paint-order: stroke fill;
}

/* === Cards — flat on mobile with left accent === */
.ppp-form-card {
    background: transparent;
    border-radius: 0;
    padding: 0;
    border: none;
    box-shadow: none;
    transition: all 0.3s ease;
}

.ppp-form-card.ppp-source-card,
.ppp-form-card.ppp-target-card {
    border: none;
}

.ppp-source-card .ppp-form-group:first-child {
    border-left: 3px solid #93c5fd;
    padding-left: 0.5rem;
}

.ppp-target-card .ppp-form-group:first-child {
    border-left: 3px solid #86efac;
    padding-left: 0.5rem;
}

.ppp-form-group {
    display: grid;
    gap: 0.2rem;
    margin-bottom: 0;
}

.ppp-form-group + .ppp-form-group {
    margin-top: 0.3rem;
}

.ppp-label {
    font-weight: 500 !important;
    color: var(--ppp-brand-color) !important;
    font-size: 0.82rem !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* === Input Fields === */
.ppp-input-wrapper {
    position: relative;
    width: 100%;
}

.ppp-currency-prefix {
    position: absolute;
    left: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ppp-brand-color);
    font-weight: 600;
    font-size: 0.9rem;
    pointer-events: none;
}

.ppp-input.ppp-has-currency {
    padding-left: 2rem;
}

.ppp-input,
.ppp-country-field {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1.5px solid #e5e7eb;
    border-radius: 6px;
    font-size: 16px;
    line-height: 1.4;
    color: var(--ppp-text-color);
    background: white;
    transition: all 0.2s ease;
    box-sizing: border-box;
    min-height: 42px;
}

.ppp-input:focus {
    outline: none;
    border-color: var(--ppp-brand-color);
    box-shadow: 0 0 0 3px rgba(24, 154, 180, 0.1);
    background: #fafafa;
}

.ppp-input-readonly {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    cursor: not-allowed;
    color: var(--ppp-text-color);
    font-weight: 600;
    border-color: #e2e8f0;
}

.ppp-input[type="number"]::-webkit-inner-spin-button,
.ppp-input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.ppp-input[type="number"] {
    -moz-appearance: textfield;
}

/* === Country Select === */
.ppp-country-select {
    position: relative;
    width: 100%;
}

.ppp-country-field {
    cursor: pointer;
    user-select: none;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 500;
}

.ppp-country-field::after {
    content: "▼";
    position: absolute;
    right: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.6rem;
    color: var(--ppp-brand-color);
    pointer-events: none;
    transition: transform 0.2s ease;
}

.ppp-country-select.ppp-active .ppp-country-field::after {
    transform: translateY(-50%) rotate(180deg);
}

.ppp-country-field:hover {
    border-color: var(--ppp-brand-color);
    background: #fafafa;
}

.ppp-country-field:focus {
    outline: none;
    border-color: var(--ppp-brand-color);
    box-shadow: 0 0 0 3px rgba(24, 154, 180, 0.1);
}

/* === Country Search === */
.ppp-country-search {
    width: 100%;
    padding: 0.5rem 0.65rem;
    border: 1.5px solid #e5e7eb;
    border-radius: 6px;
    margin-top: 0.25rem;
    display: none;
    font-size: 0.9rem;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.ppp-country-search:focus {
    outline: none;
    border-color: var(--ppp-brand-color);
}

/* === Country List === */
.ppp-country-list {
    display: none;
    position: absolute;
    width: 100%;
    max-height: 200px;
    overflow-y: auto;
    background: white;
    border: 1.5px solid #e5e7eb;
    border-radius: 6px;
    margin-top: 0.25rem;
    z-index: 1000;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    box-sizing: border-box;
}

.ppp-country-select.ppp-active .ppp-country-list,
.ppp-country-select.ppp-active .ppp-country-search {
    display: block;
}

.ppp-country-list div {
    padding: 0.5rem 0.65rem;
    cursor: pointer;
    transition: background 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.9rem;
}

.ppp-country-list div:last-child {
    border-bottom: none;
}

.ppp-country-list div:hover {
    background: #f0f9ff;
}

.ppp-country-list div:focus {
    outline: none;
    background: #dbeafe;
}

/* === Flag Emoji === */
.ppp-flag {
    display: inline-block;
    font-size: 1.15em;
    line-height: 1;
    vertical-align: middle;
}

.ppp-country-field .ppp-flag {
    font-size: 1.15em;
}

/* === Result === */
.ppp-result-container {
    margin-top: 0.5rem;
    padding: 0.65rem;
    background: white;
    border-radius: 6px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1.5px solid #e5e7eb;
}

.ppp-result-text {
    font-size: 0.82rem;
    margin: 0;
    line-height: 1.5;
    color: var(--ppp-text-color);
    font-weight: 400;
}

.ppp-result-text .ppp-amount {
    color: #047857;
    font-weight: 700;
    font-size: 1em;
    white-space: nowrap;
    padding: 0.15rem 0.4rem;
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-radius: 4px;
    display: inline;
    margin: 0 0.1rem;
    border: 1px solid #6ee7b7;
}

.ppp-currency-symbol {
    display: inline-block;
    margin-right: 1px;
    font-weight: 700;
}

/* === Error === */
.ppp-error {
    padding: 0.75rem;
    margin-top: 0.5rem;
    background: #fee;
    border: 1px solid var(--ppp-error-color);
    border-radius: 4px;
    color: var(--ppp-error-color);
    text-align: center;
    font-size: 0.85rem;
}

/* === Screen Reader === */
.ppp-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* === Extra Small — max-width: 380px (iPhone SE) === */
@media screen and (max-width: 380px) {
    .ppp-calculator-wrapper { padding: 0.6rem; }
    .ppp-calc-title { font-size: 1.15rem !important; }
    .ppp-calc-subtitle { font-size: 0.7rem !important; }
    .ppp-input, .ppp-country-field { min-height: 38px; padding: 0.45rem 0.6rem; }
    .ppp-swap-button { width: 36px; height: 36px; }
    .ppp-swap-button { width: 42px; height: 42px; font-size: 1.3rem; }
}

/* ==============================================
   DESKTOP (min-width: 769px)
   All values restored exactly to v1.4.0
   ============================================== */
@media screen and (min-width: 769px) {

    .ppp-calculator-container {
        margin: 0 auto 1.5rem;
        line-height: 1.6;
    }

    .ppp-calculator-wrapper {
        border-radius: 16px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        padding: 2rem;
    }

    .ppp-calculator-wrapper:hover {
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    }

    .ppp-calc-title {
        font-size: clamp(1.75rem, 4.5vw, 2.25rem) !important;
        margin: 0 0 0.25rem 0 !important;
    }

    .ppp-title-flag {
        font-size: 0.85em;
        margin: 0 0.3rem;
    }

    .ppp-calc-subtitle {
        margin: 0 0 2rem 0 !important;
        font-size: clamp(0.875rem, 2vw, 1rem) !important;
        line-height: 1.5 !important;
        gap: 10px;
    }

    .ppp-world-bank-badge {
        gap: 6px;
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 0.7rem;
        box-shadow: 0 2px 6px rgba(16, 185, 129, 0.25);
    }

    .ppp-world-bank-badge:hover {
        transform: translateY(-1px);
        box-shadow: 0 3px 8px rgba(16, 185, 129, 0.3);
    }

    .ppp-icon-shield::before {
        width: 16px;
        height: 16px;
        font-size: 10px;
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    }

    .ppp-badge-text {
        font-size: 0.7rem;
    }

    .ppp-calculator-form {
        gap: 1.5rem;
    }

    .ppp-countries-row {
        grid-template-columns: 1fr auto 1fr;
        gap: 1rem;
    }

    .ppp-swap-button {
        margin-top: 1.75rem;
        margin-bottom: 0;
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
        box-shadow: 0 2px 8px rgba(24, 154, 180, 0.3);
        transform: rotate(0deg);
    }

    .ppp-swap-button:hover {
        transform: rotate(180deg) scale(1.1);
        box-shadow: 0 4px 12px rgba(24, 154, 180, 0.4);
    }

    .ppp-swap-button:active {
        transform: rotate(180deg) scale(0.95);
    }

    /* Restore card styling */
    .ppp-form-card {
        background: white;
        border-radius: 12px;
        padding: 1.5rem;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        border: 1.5px solid #e5e7eb;
    }

    .ppp-form-card:hover {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        border-color: #d1d5db;
    }

    .ppp-form-card.ppp-source-card { border-color: #bfdbfe; }
    .ppp-form-card.ppp-source-card:hover { border-color: #93c5fd; }
    .ppp-form-card.ppp-target-card { border-color: #bbf7d0; }
    .ppp-form-card.ppp-target-card:hover { border-color: #86efac; }

    /* Remove mobile accent borders */
    .ppp-source-card .ppp-form-group:first-child,
    .ppp-target-card .ppp-form-group:first-child {
        border-left: none;
        padding-left: 0;
    }

    .ppp-form-group {
        gap: 0.5rem;
    }

    .ppp-form-group + .ppp-form-group {
        margin-top: 0;
    }

    .ppp-label {
        font-size: 1rem !important;
    }

    .ppp-currency-prefix {
        left: 1rem;
        font-size: 1.1rem;
    }

    .ppp-input.ppp-has-currency {
        padding-left: 2.5rem;
    }

    .ppp-input,
    .ppp-country-field {
        padding: 0.875rem 1rem;
        border-width: 2px;
        border-radius: 8px;
        font-size: 1rem;
        min-height: 52px;
    }

    .ppp-input:focus {
        box-shadow: 0 0 0 4px rgba(24, 154, 180, 0.1);
    }

    .ppp-country-field::after {
        right: 1rem;
        font-size: 0.75rem;
    }

    .ppp-country-field:focus {
        box-shadow: 0 0 0 4px rgba(24, 154, 180, 0.1);
    }

    .ppp-country-search {
        padding: 0.875rem 1rem;
        border-width: 2px;
        border-radius: 8px;
        margin-top: 0.5rem;
        font-size: 1rem;
    }

    .ppp-country-search:focus {
        box-shadow: 0 0 0 4px rgba(24, 154, 180, 0.1);
    }

    .ppp-country-list {
        max-height: 300px;
        border-width: 2px;
        border-radius: 8px;
        margin-top: 0.5rem;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .ppp-country-list div {
        padding: 0.875rem 1rem;
        gap: 0.75rem;
        font-size: 1rem;
    }

    .ppp-country-list div:hover {
        background: linear-gradient(90deg, #f0f9ff 0%, #ffffff 100%);
        padding-left: 1.25rem;
    }

    .ppp-country-list div:focus {
        background: linear-gradient(90deg, #dbeafe 0%, #f0f9ff 100%);
        border-left: 3px solid var(--ppp-brand-color);
    }

    .ppp-flag {
        font-size: 1.4em;
        margin-right: 0.25rem;
        filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
    }

    .ppp-country-field .ppp-flag {
        margin-right: 0.5rem;
        font-size: 1.3em;
    }

    .ppp-result-container {
        margin-top: 1.5rem;
        padding: 2rem 1.5rem;
        border-radius: 12px;
    }

    .ppp-result-text {
        font-size: 1.05rem;
        line-height: 1.7;
    }

    .ppp-result-text .ppp-amount {
        font-size: 1.15em;
        padding: 0.35rem 0.75rem;
        display: inline-block;
        margin: 0 0.25rem;
    }

    .ppp-error {
        padding: 1rem;
        margin-top: 1rem;
        font-size: 1rem;
    }
}

/* === Print === */
@media print {
    .ppp-calculator-container { box-shadow: none; }
    .ppp-country-list, .ppp-country-search { display: none !important; }
}

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
    .ppp-calculator-container *,
    .ppp-calculator-container *::before,
    .ppp-calculator-container *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    .ppp-calculator-wrapper { border: 2px solid var(--ppp-brand-color); }
    .ppp-input, .ppp-country-field { border-width: 2px; }
}