---

:root {
    --bg: #f6f8fc;
    --surface: rgba(255, 255, 255, 0.92);
    --surface-strong: #ffffff;
    --line: #e5eaf2;
    --text: #111827;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-soft: #eff6ff;
    --success: #059669;
    --danger: #dc2626;
    --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
    --radius: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 10% 0%, rgba(37, 99, 235, 0.08), transparent 28rem),
        radial-gradient(circle at 100% 10%, rgba(14, 165, 233, 0.06), transparent 24rem),
        var(--bg);
}

button, input, select { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }

.page-shell {
    width: min(100% - 32px, 980px);
    margin: 0 auto;
    padding: 52px 0 32px;
}

.hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 32px;
    margin-bottom: 30px;
}

.eyebrow, .section-label {
    color: var(--primary);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 5px rgba(5, 150, 105, 0.1);
}

.hero h1 {
    margin: 0;
    font-size: clamp(2.7rem, 7vw, 5.3rem);
    line-height: 0.94;
    letter-spacing: -0.055em;
}

.hero h1 span { color: var(--primary); }

.hero p {
    max-width: 580px;
    margin: 20px 0 0;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.65;
}

.hero-mark {
    width: 72px;
    height: 72px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    border-radius: 22px;
    background: var(--text);
    color: white;
    font-size: 2rem;
    transform: rotate(-8deg);
}

.converter-card, .result-card, .panel {
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
    border-radius: var(--radius);
}

.converter-card { 
    padding: 26px; 
    margin-bottom: 18px; 
    position: relative;
    z-index: 20;
}

.card-heading, .panel-heading, .result-topline, .result-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

h2 {
    margin: 5px 0 0;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.app-status {
    max-width: 45%;
    color: var(--muted);
    font-size: 0.78rem;
    text-align: right;
}
.app-status.success { color: var(--success); }
.app-status.error { color: var(--danger); }

.converter-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 14px;
    margin-top: 22px;
}

.currency-box {
    display: block;
    min-width: 0;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface-strong);
}

.currency-box > span {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 700;
}

.currency-input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    align-items: center;
    gap: 10px;
}

.currency-dropdown {
    position: relative;
    width: 100%;
    min-width: 0;
    z-index: 10;
}

.currency-dropdown.open {
    z-index: 1000;
}

.currency-dropdown-button {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding: 0 14px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    color: var(--text);

    cursor: pointer;
    font: inherit;
    text-align: left;

    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease;
}

.currency-dropdown-button:hover {
    border-color: var(--primary);
}

.currency-dropdown.open .currency-dropdown-button {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.10);
}

.currency-dropdown-current {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.currency-flag {
    flex: 0 0 auto;
    font-size: 1.25rem;
    line-height: 1;
}

.currency-code {
    font-weight: 700;
    letter-spacing: 0.02em;
}

.currency-name {
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.currency-dropdown-arrow {
    flex: 0 0 auto;
    margin-left: 10px;
    font-size: 1.1rem;
    color: var(--muted);

    transition: transform 0.2s ease;
}

.currency-dropdown.open .currency-dropdown-arrow {
    transform: rotate(180deg);
}

.currency-dropdown-menu {
    position: absolute;
    z-index: 1000;

    top: calc(100% + 8px);
    left: 0;
    right: 0;

    max-height: 320px;
    overflow-y: auto;

    padding: 6px;

    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;

    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.15);

    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);

    transition:
        opacity 0.15s ease,
        transform 0.15s ease,
        visibility 0.15s ease;
}

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

.currency-option {
    width: 100%;

    display: flex;
    align-items: center;

    gap: 10px;

    padding: 10px 11px;

    border: 0;
    border-radius: 9px;

    background: transparent;
    color: var(--text);

    cursor: pointer;
    font: inherit;
    text-align: left;

    transition: background 0.15s ease;
}

.currency-option:hover {
    background: var(--bg);
}

.currency-option-info {
    min-width: 0;

    display: flex;
    align-items: baseline;
    gap: 8px;
}

.currency-option-code {
    font-weight: 700;
    flex: 0 0 auto;
}

.currency-option-name {
    color: var(--muted);

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.currency-dropdown-menu::-webkit-scrollbar {
    width: 7px;
}

.currency-dropdown-menu::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background: var(--line);
}

.amount-input {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
    font-size: clamp(1.7rem, 4vw, 2.3rem);
    font-weight: 750;
    letter-spacing: -0.035em;
}
.amount-input::placeholder { color: #c5cad4; }
.amount-input::-webkit-inner-spin-button { opacity: 0.5; }
.result-input.loading { opacity: 0.45; }

.currency-select {
    min-width: 82px;
    max-width: 110px;
    padding: 10px 28px 10px 11px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #f8fafc;
    color: var(--text);
    font-size: 0.86rem;
    font-weight: 800;
    outline: none;
    cursor: pointer;
}
.currency-select:focus { border-color: #93b4f7; box-shadow: 0 0 0 4px var(--primary-soft); }
.currency-select:disabled { cursor: wait; opacity: 0.55; }

.swap-btn {
    width: 46px;
    height: 46px;
    flex: 0 0 46px;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 0;
    border: 1px solid var(--line);
    border-radius: 50%;

    background: var(--surface-strong);
    color: #000;

    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);

    cursor: pointer;

    transition:
        background 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.15s ease;
}

.swap-btn span {
    display: block;

    font-size: 1.45rem;
    line-height: 1;
    font-weight: 500;

    color: #000;
    transform: translateY(-1px);
}

.swap-btn:hover {
    background: var(--primary-soft);
    border-color: #b8cdf9;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.14);
}

.swap-btn:hover span {
    transform: translateY(-1px);
}

.swap-btn:active {
    transform: scale(0.94);
}

.swap-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.result-card { 
    padding: 24px 26px; 
    margin-bottom: 18px; 
    position: relative;
    z-index: 1;
}

.result-topline { margin-bottom: 16px; }
.source-badge {
    padding: 6px 9px;
    border-radius: 999px;
    background: #f1f5f9;
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 750;
}
.result-main { align-items: flex-end; }
.result-value { font-size: clamp(2.5rem, 7vw, 4rem); font-weight: 800; letter-spacing: -0.055em; }
.result-currency { margin-left: 8px; color: var(--muted); font-size: 1rem; font-weight: 750; }
.result-change { color: var(--muted); font-size: 0.88rem; font-weight: 650; text-align: right; }
.result-footer { margin-top: 8px; color: var(--muted); font-size: 0.75rem; }

.panel { padding: 24px 26px; margin-bottom: 18px; }
.panel-heading { align-items: flex-end; margin-bottom: 18px; }
.panel-heading.compact { align-items: center; }
.panel-meta { color: var(--muted); font-size: 0.76rem; text-align: right; }

.chart-container {
    position: relative;
    width: 100%;
    height: 330px;
}

.chart-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.chart-section {
    position: relative;
    z-index: 1;
}

.chart-status {
    color: var(--muted);
    font-size: 0.75rem;
}

.chart-status.positive { color: var(--success); }
.chart-status.negative { color: var(--danger); }
.chart-status.error { color: var(--danger); }

.popular-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 10px;
}

.popular-card {
    min-width: 0;
    padding: 15px 10px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fbfcfe;
    text-align: left;
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.popular-card:hover { transform: translateY(-2px); border-color: #bdd0f7; background: var(--primary-soft); }
.popular-code { display: block; font-weight: 850; }
.popular-rate { display: block; margin-top: 8px; font-size: 0.9rem; font-weight: 700; }
.popular-caption { display: block; margin-top: 2px; color: var(--muted); font-size: 0.64rem; }

.show-all-btn {
    width: 100%;
    margin-top: 12px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: transparent;
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 750;
    cursor: pointer;
}
.show-all-btn:hover { background: #f8fafc; }

.hidden { display: none; }
.table-wrap { overflow-x: auto; }
.rates-table { width: 100%; border-collapse: collapse; }
.rates-table th, .rates-table td { padding: 12px 8px; border-bottom: 1px solid #eef1f5; text-align: left; }
.rates-table th { color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: .06em; }
.rates-table td:last-child, .rates-table th:last-child { text-align: right; }
.rates-table tr:last-child td { border-bottom: 0; }

.site-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 24px 0 10px;
    color: var(--muted);
    font-size: 0.85rem;
}

.site-footer a {
    color: inherit;
    font-weight: 600;
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

@media (max-width: 760px) {
    .page-shell { width: min(100% - 20px, 680px); padding-top: 28px; }
    .hero { align-items: flex-start; }
    .hero-mark { display: none; }
    .hero h1 { font-size: clamp(2.5rem, 15vw, 4rem); }
    .hero p { margin-top: 14px; }
    .converter-card, .result-card, .panel { padding: 20px; border-radius: 20px; }
    .converter-grid { grid-template-columns: 1fr; gap: 10px; }
    .swap-btn { margin: -2px auto; transform: none; }
    .swap-btn:hover { transform: none; }
    .swap-btn:hover span { transform: scale(1.12); }
    .app-status { max-width: 48%; }
    .popular-grid { grid-template-columns: repeat(3, 1fr); }
    .chart-container { height: 260px; }
    .chart-status { position: static; margin-top: 8px; }
    .site-footer { flex-direction: column; text-align: center;}
}

@media (max-width: 430px) {
    .page-shell { width: min(100% - 14px, 680px); }
    .hero { margin-bottom: 20px; }
    .card-heading, .panel-heading, .result-main { align-items: flex-start; flex-direction: column; }
    .app-status { max-width: 100%; text-align: left; }
    .result-main { gap: 8px; }
    .result-change { text-align: left; }
    .popular-grid { grid-template-columns: repeat(2, 1fr); }
    .currency-input-row { grid-template-columns: minmax(0, 1fr) auto; }
}