:root {
    --primary: #2196F3;
    --primary-dark: #1976D2;
    --bg: #f4f7f9;
    --card-bg: #ffffff;
    --text: #333;
    --danger: #e53935;
    --success: #43a047;
    --border: #ddd;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 10px;
}

.container { max-width: 1000px; margin: 0 auto; }

.card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.hidden { display: none; }

h2, h3 { color: var(--primary-dark); margin-top: 0; }

.grid-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.field { display: flex; flex-direction: column; }

label { font-weight: bold; margin-bottom: 5px; font-size: 0.9em; }

input, select {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 16px; /* Evita zoom su iOS */
}

button {
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
    text-transform: uppercase;
}

.btn-primary { background: var(--primary); color: white; width: 100%; }
.btn-success { background: var(--success); color: white; width: 100%; }
.btn-danger { background: var(--danger); color: white; }
.btn-secondary { background: #607d8b; color: white; }

.info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #e3f2fd;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.table-container { overflow-x: auto; background: white; border-radius: 8px; padding: 10px; margin-top: 20px; }

table { width: 100%; border-collapse: collapse; margin-top: 10px; }

th, td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    font-size: 0.9em;
}

th { background-color: var(--primary); color: white; }

.actions-bar { display: flex; gap: 10px; margin: 20px 0; }

@media (max-width: 600px) {
    .grid-form { grid-template-columns: 1fr; }
    .info-bar { flex-direction: column; gap: 10px; text-align: center; }
}