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

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.6;
    font-size: 15px;
}

#app {
    min-height: 100vh;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem .5rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

h2 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1rem;
}

h3 {
    font-size: .9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: .5rem;
}

.hidden   { display: none !important; }
.positive { color: var(--color-positive); }
.negative { color: var(--color-negative); }
.empty-msg {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    padding: 0.5rem 0;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    color: var(--color-text-muted);
    font-size: 1.1rem;
    gap: 0.6rem;
}

.loading::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

@media(min-width: 576px) {

    .card {
        padding: 1.5rem;
    }
}