/* ===== PingInfo – Fancy Market Data UI ===== */
:root {
    --bg-dark: #0a0b0f;
    --bg-card: #12141a;
    --bg-card-hover: #181b24;
    --accent-cyan: #00d4aa;
    --accent-cyan-dim: rgba(0, 212, 170, 0.15);
    --accent-gold: #f0b90b;
    --accent-gold-dim: rgba(240, 185, 11, 0.15);
    --accent-red: #f6465d;
    --accent-green: #0ecb81;
    --text-primary: #e8eaed;
    --text-secondary: #8b8f98;
    --border: rgba(255, 255, 255, 0.06);
    --font-sans: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    z-index: 1000;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--border);
    background: rgba(18, 20, 26, 0.8);
    backdrop-filter: blur(12px);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--accent-cyan);
    filter: drop-shadow(0 0 8px var(--accent-cyan));
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.header-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.last-update {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.btn-refresh {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 212, 170, 0.3);
    color: var(--accent-cyan);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-refresh:hover {
    background: rgba(0, 212, 170, 0.25);
    transform: translateY(-1px);
}

.btn-refresh:active {
    transform: translateY(0);
}

.refresh-icon {
    font-size: 1.1rem;
    transition: transform 0.4s ease;
}

.btn-refresh.loading .refresh-icon {
    animation: spin 1s linear infinite;
}

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

/* Main */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.25rem;
}

/* Market Cards */
.market-overview {
    margin-bottom: 2.5rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.25s ease;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.card-xcb {
    border-left: 3px solid var(--accent-cyan);
}

.card-ctn {
    border-left: 3px solid var(--accent-gold);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.pair-name {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
}

.card-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
}

.card-price {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.card-xcb .card-price { color: var(--accent-cyan); }
.card-ctn .card-price { color: var(--accent-gold); }

.card-change {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.card-change.positive { color: var(--accent-green); }
.card-change.negative { color: var(--accent-red); }

.card-volume {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
}

/* Orderbooks */
.orderbooks {
    margin-bottom: 2rem;
}

.orderbook-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.25rem;
}

.orderbook-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.orderbook-panel h3 {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    padding: 1rem 1.25rem;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border);
}

.orderbook-block {
    border-bottom: 1px solid var(--border);
}

.orderbook-block:last-child {
    border-bottom: none;
}

.orderbook-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.6rem 1.25rem 0.3rem;
}

.orderbook-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 0.6rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.orderbook-list {
    max-height: 180px;
    overflow-y: auto;
}

.orderbook-list::-webkit-scrollbar {
    width: 6px;
}

.orderbook-list::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.orderbook-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}

.orderbook-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 0.5rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: background 0.15s ease;
}

.orderbook-row:hover {
    background: rgba(0, 212, 170, 0.05);
}

.orderbook-row .price {
    color: var(--accent-green);
}

.orderbook-row .price.asks {
    color: var(--accent-red);
}

.orderbook-row-bids:hover {
    background: rgba(0, 212, 170, 0.05);
}

.orderbook-row-asks:hover {
    background: rgba(246, 70, 93, 0.05);
}

.orderbook-row .amount {
    color: var(--text-secondary);
    text-align: right;
}

.empty-state {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Status Bar */
.status-bar {
    display: flex;
    gap: 2rem;
    padding: 1rem 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-label {
    margin-right: 0.4rem;
}

.status-value {
    font-family: var(--font-mono);
}

.status-value.online {
    color: var(--accent-green);
}

.status-value.offline {
    color: var(--accent-red);
}

.status-value.cached {
    color: var(--accent-cyan);
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.footer a {
    color: var(--accent-cyan);
    text-decoration: none;
}

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

/* Responsive */
@media (max-width: 600px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .main {
        padding: 1.25rem;
    }

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

    .orderbook-grid {
        grid-template-columns: 1fr;
    }
}