:root {
    --bg: #121212;
    --panel: #1c1c1c;
    --gold: #dfb74c;
    --text: #e0e0e0;
    --outflow: #ff5b5b;
    --inflow: #4cd964;
    --border: #2d2a27;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Tahoma, sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    padding: 20px;
}

.glass-panel {
    background: var(--panel);
    width: 100%;
    max-width: 1100px;
    border-radius: 12px;
    padding: 30px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 15px;
    margin-bottom: 25px;
}

.tab-nav {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.tab-link {
    text-decoration: none;
    color: #666;
    font-weight: 600;
    font-size: 13px;
    padding-bottom: 5px;
}

.tab-link.active { border-bottom: 2px solid var(--gold); color: var(--gold); }
.tab-expense.active { border-bottom-color: var(--outflow); color: var(--outflow); }
.tab-income.active { border-bottom-color: var(--inflow); color: var(--inflow); }

input, select {
    background: #252525;
    border: 1px solid #333;
    color: white;
    padding: 12px;
    margin-bottom: 15px;
    width: 100%;
    border-radius: 5px;
}

.gold-btn {
    background: var(--gold);
    color: black;
    border: none;
    padding: 12px;
    width: 100%;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
}

table { width: 100%; border-collapse: collapse; }
th { text-align: left; color: #555; font-size: 12px; padding: 10px; border-bottom: 1px solid #333; }
td { padding: 12px 10px; border-bottom: 1px solid #222; font-size: 14px; }