:root {
    --bg-color: #0b0e11;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --positive-color: #00ffad;
    --negative-color: #ff3b3b;
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 4rem;
    background-image: radial-gradient(circle at top, #151b22 0%, #0b0e11 60%);
}

.dashboard-container {
    width: 100%;
    max-width: 900px;
    padding: 0 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.header-top h1 {
    margin-bottom: 0;
}

.live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--positive-color);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--positive-color);
    border-radius: 50%;
    box-shadow: 0 0 0 rgba(16, 185, 129, 0.4);
    animation: pulse-dot-anim 2s infinite;
}

@keyframes pulse-dot-anim {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.asset-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.asset-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 0 15px rgba(59, 130, 246, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.asset-name {
    font-size: 1.5rem;
    font-weight: 600;
}

.asset-symbol {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.price-container {
    margin-bottom: 1rem;
}

.asset-price {
    font-size: 2.25rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.asset-change {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.change-positive {
    color: var(--positive-color);
}

.change-negative {
    color: var(--negative-color);
}

.loader {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    padding: 3rem;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

.sats-metric {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    font-weight: 500;
}

.range-container {
    margin-top: 1.5rem;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.range-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    position: relative;
}

.range-marker {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 12px;
    background-color: #00ffff;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(0, 255, 255, 0.6);
}