:root {
    --bg-main: #050816;
    --bg-card: #0b1120;
    --bg-card-soft: #10192e;
    --border-soft: rgba(0, 170, 255, 0.18);
    --blue-main: #1da1ff;
    --blue-glow: #39b8ff;
    --purple-accent: #7a5cff;
    --green-up: #22c55e;
    --red-down: #ef4444;
    --text-main: #eaf4ff;
    --text-secondary: #8fa8c7;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Inter", "Segoe UI", Arial, sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(1200px 700px at 12% -5%, rgba(29, 161, 255, 0.18), transparent 60%),
        radial-gradient(900px 600px at 88% 5%, rgba(122, 92, 255, 0.16), transparent 60%),
        var(--bg-main);
    min-height: 100vh;
}

.app-shell {
    max-width: 1360px;
    margin: 0 auto;
    padding: 20px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-soft);
    background: rgba(11, 17, 32, 0.78);
    backdrop-filter: blur(8px);
    border-radius: 18px;
    margin-bottom: 18px;
}

.brand {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.3px;
}

.brand-subtitle {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 700;
    color: #ffffff;
    padding: 10px 16px;
    border-radius: 12px;
    border: 1px solid rgba(57, 184, 255, 0.42);
    background: linear-gradient(135deg, var(--blue-main), var(--purple-accent));
    box-shadow: 0 8px 24px rgba(29, 161, 255, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(57, 184, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    opacity: 0.92;
}

.card-glow {
    border-radius: 18px;
    background: linear-gradient(160deg, rgba(11, 17, 32, 0.98) 0%, rgba(16, 25, 46, 0.96) 100%);
    border: 1px solid var(--border-soft);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.28);
    padding: 18px;
    animation: fadeInCard 0.45s ease both;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-glow:hover {
    transform: translateY(-2px);
    border-color: rgba(57, 184, 255, 0.32);
    box-shadow: 0 16px 40px rgba(11, 123, 214, 0.18);
}

.hero-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-title {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.hero-price {
    font-size: clamp(1.8rem, 3.1vw, 2.7rem);
    margin: 0;
    font-weight: 800;
    color: var(--blue-glow);
    letter-spacing: 0.3px;
}

.hero-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.badge-live {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(34, 197, 94, 0.45);
    color: #c9f9dd;
    background: rgba(34, 197, 94, 0.16);
    font-size: 0.82rem;
    font-weight: 700;
}

.badge-live::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green-up);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.8);
}

.price-up {
    color: var(--green-up);
}

.price-down {
    color: var(--red-down);
}

.price-flat {
    color: var(--text-secondary);
}

.main-grid {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(280px, 1fr);
    gap: 16px;
}

.left-stack,
.right-stack {
    display: grid;
    gap: 16px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.section-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

.section-meta {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.84rem;
}

.chart-wrap {
    height: 390px;
    position: relative;
}

.metrics-grid {
    display: grid;
    gap: 10px;
}

.metric-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid rgba(57, 184, 255, 0.12);
    background: rgba(16, 25, 46, 0.75);
}

.metric-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.metric-value {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text-main);
}

.buy-action {
    margin-top: 14px;
    width: 100%;
    padding: 12px 16px;
}

.table-wrap {
    overflow-x: auto;
}

.history-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
}

.history-table th,
.history-table td {
    padding: 11px 10px;
    text-align: left;
    border-bottom: 1px solid rgba(143, 168, 199, 0.16);
    font-size: 0.88rem;
}

.history-table th {
    color: #b9cff0;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.history-table tbody tr:hover {
    background: rgba(57, 184, 255, 0.07);
}

.trade-badge {
    display: inline-flex;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.trade-buy {
    color: #d9ffe8;
    background: rgba(34, 197, 94, 0.22);
    border: 1px solid rgba(34, 197, 94, 0.45);
}

.trade-sell {
    color: #ffe1e1;
    background: rgba(239, 68, 68, 0.22);
    border: 1px solid rgba(239, 68, 68, 0.45);
}

.empty-row {
    color: var(--text-secondary);
    text-align: center;
}

.status-note {
    margin-top: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.84rem;
    border: 1px dashed rgba(143, 168, 199, 0.28);
    background: rgba(16, 25, 46, 0.6);
}

.status-note.error {
    border-color: rgba(239, 68, 68, 0.32);
    color: #fecaca;
    background: rgba(90, 22, 33, 0.28);
}

.app-footer {
    margin-top: 16px;
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.82rem;
    padding: 10px;
}

/* Scrollbar custom */
*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

*::-webkit-scrollbar-track {
    background: rgba(16, 25, 46, 0.82);
}

*::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--blue-main), var(--purple-accent));
    border-radius: 999px;
}

*::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--blue-glow), var(--purple-accent));
}

@keyframes fadeInCard {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1080px) {
    .main-grid {
        grid-template-columns: 1fr;
    }

    .chart-wrap {
        height: 340px;
    }
}

@media (max-width: 680px) {
    .app-shell {
        padding: 12px;
    }

    .topbar {
        padding: 12px;
        border-radius: 14px;
    }

    .brand-title {
        font-size: 1.05rem;
    }

    .hero-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-price {
        font-size: 1.9rem;
    }

    .card-glow {
        border-radius: 14px;
        padding: 14px;
    }

    .btn-primary {
        width: 100%;
    }

    .section-title {
        font-size: 0.95rem;
    }

    .chart-wrap {
        height: 300px;
    }
}