:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --border: #1f1f1f;
    --accent: #888888;
    --text: #ffffff;
    --text-muted: #555555;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    padding: 2rem;
    overflow-x: hidden;
}

.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: linear-gradient(var(--border) 1px, transparent 1px),
                      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    opacity: 0.1;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
}

.logo {
    font-weight: 700;
    letter-spacing: 0.1em;
}

.status-badge {
    color: var(--accent);
    font-size: 0.8rem;
    text-transform: uppercase;
}

main {
    max-width: 800px;
    margin: 0 auto;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: 4px;
    margin-bottom: 2rem;
}

.card label {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.5rem;
}

.amount {
    font-size: 3rem;
    font-weight: 300;
}

h3 {
    font-size: 1rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.transaction-item {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 4px;
    transition: border-color 0.2s;
}

.transaction-item:hover {
    border-color: var(--accent);
}

.tx-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.tx-icon {
    font-size: 1.2rem;
    color: var(--accent);
}

.tx-desc {
    font-weight: 500;
}

.tx-cat {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.tx-amount {
    font-family: monospace;
    font-size: 1.1rem;
}