:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #2ecc71;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #1d2834;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --border-radius: 8px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
body {
    font-family: var(--font-family);
    background-color: var(--light-color);
    color: var(--primary-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}
.container {
    width: 100%;
    max-width: 960px;
    background-color: #ffffff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px;
    box-sizing: border-box;
}
h1, h2 { text-align: center; color: var(--primary-color); }
h1 { margin-bottom: 10px; }
h2 { margin-top: 0; font-weight: 300; font-size: 1.2em; margin-bottom: 30px; }

.budget-sections { display: flex; flex-wrap: wrap; margin: 0 -15px; align-items: flex-start; }
.column { flex: 1 1 400px; padding: 0 15px; box-sizing: border-box; }
.section {
    padding: 20px;
    border-radius: var(--border-radius);
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
    margin-bottom: 20px;
}
.section h3 { margin-top: 0; color: var(--secondary-color); border-bottom: 2px solid var(--secondary-color); padding-bottom: 10px; margin-bottom: 20px; text-align: left; }

/* --- AICI ESTE SOLUȚIA SIMPLIFICATĂ --- */
.input-group {
    display: flex;
    flex-direction: column; /* Elementele stau unul sub altul */
    gap: 10px;
    margin-bottom: 15px;
}
.sub-input-group {
    display: flex; /* Grupul intern stă pe orizontală */
    gap: 10px;
}
.input-group select, .input-group input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: var(--border-radius);
    font-size: 1.1em;
    box-sizing: border-box;
}
.sub-input-group input {
    flex-grow: 1; /* Inputul de sumă ocupă spațiul disponibil */
    width: 100%; /* Necesar pentru a funcționa corect flex-grow */
}
.sub-input-group button {
    flex-shrink: 0; /* Butonul nu se micșorează */
}
/* --- FINALUL SOLUȚIEI --- */

ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}
li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    font-size: 1.1em;
}
li:last-child { border-bottom: none; }
.item-details { flex-grow: 1; }
.item-amount { font-weight: bold; margin-right: 10px; }
.delete-btn { background-color: var(--danger-color); color: white; border: none; border-radius: 50%; width: 24px; height: 24px; cursor: pointer; font-weight: bold; display: flex; align-items: center; justify-content: center; }

.chart-section {
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: var(--border-radius);
    border: 1px solid #e0e0e0;
}
.chart-section h4 { text-align: center; margin-top: 0; color: var(--primary-color); }
.chart-wrapper { position: relative; max-width: 350px; margin: auto; }

.summary { clear: both; margin-top: 30px; padding: 20px; background-color: var(--primary-color); color: white; border-radius: var(--border-radius); text-align: center; }
.summary h3 { margin-top: 0; color: white; }
.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; margin-top: 15px; }
@media (max-width: 500px) { .summary-grid { grid-template-columns: 1fr; } }
.summary-item { padding: 15px; border-radius: var(--border-radius); }
.summary-item h4 { margin: 0 0 5px 0; font-size: 0.9em; text-transform: uppercase; }
.summary-item p { margin: 0; font-size: 1.8em; font-weight: bold; }
#total-venituri-box { background-color: var(--accent-color); }
#total-cheltuieli-box { background-color: var(--danger-color); }
#sold-final-box { background-color: var(--secondary-color); }
.footer { text-align: center; margin-top: 20px; font-size: 0.9em; color: #7f8c8d; }