:root {
    --background-color: #0D1117;
    --surface-color: #161B22;
    --primary-text-color: #C9D1D9;
    --secondary-text-color: #8B949E;
    --buy-color: #238636;
    --sell-color: #DA3633;
    --hold-color: #FFC107;
    --font-family: 'Poppins', sans-serif;
}

body {
    background: linear-gradient(135deg, var(--background-color) 0%, #1a222e 100%);
    color: var(--primary-text-color);
    font-family: var(--font-family);
    margin: 0;
    padding: 24px;
    line-height: 1.6;
}

header {
    text-align: center;
    margin-bottom: 48px;
}

header h1 {
    font-size: 3rem;
    margin: 0;
    color: #fff;
    font-weight: 600;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

section h2 {
    font-size: 2rem;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-text-color);
    padding-bottom: 10px;
    margin-bottom: 24px;
}

.stock-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.stock-card {
    background-color: var(--surface-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    transition: all 0.3s cubic-bezier(.25,.8,.25,1);
    border: 1px solid #30363d;
}

.stock-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}

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

.stock-name {
    font-size: 1.5rem;
    margin: 0;
    font-weight: 600;
}

.stock-ticker {
    font-size: 1rem;
    color: var(--secondary-text-color);
}

.metric {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.95rem;
}

.metric-label {
    font-weight: 400;
    color: var(--secondary-text-color);
}

.metric-value {
    font-weight: 600;
}

.card-footer {
    margin-top: 16px;
    text-align: center;
}

.recommendation {
    font-size: 1.25rem;
    font-weight: 600;
    padding: 10px;
    border-radius: 4px;
    text-transform: uppercase;
}

.recommendation.buy {
    background-color: var(--buy-color);
    color: #fff;
}

.recommendation.sell {
    background-color: var(--sell-color);
    color: #fff;
}

.recommendation.hold {
    background-color: var(--hold-color);
    color: #000;
}

.recommendation.n\/a {
    background-color: #808080;
    color: #fff;
}

.loader {
    border: 8px solid #30363d;
    border-top: 8px solid #3498db;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 2s linear infinite;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -30px;
    margin-top: -30px;
    z-index: 10;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden {
    display: none;
}