:root {
    --color-primario: #F5F5F5;
    --color-hover: #1E3A5F;
    --color-fondo: #0D0D0D;
    --color-texto: #E5E5E5;
    --color-acento: #5FAEDB;
    --color-borde: rgba(95, 174, 219, 0.3);
    --color-tarjeta: rgba(20,20,20,0.85);
}

body {
    margin: 0;
    font-family: 'Nunito', sans-serif;
    background: radial-gradient(circle at top, #111827, #0D0D0D);
    color: var(--color-texto);
    padding: 15px;
}

/* INTERFAZ PANTALLA */
.no-print { max-width: 600px; margin: auto; }

.toolbar { text-align: center; margin-bottom: 20px; }
.day-nav { display: flex; justify-content: center; align-items: center; gap: 20px; margin-bottom: 15px; }

button {
    padding: 10px 15px;
    border-radius: 12px;
    border: 1px solid var(--color-borde);
    background: var(--color-tarjeta);
    color: white;
    cursor: pointer;
    transition: 0.3s;
}

button:hover { background: var(--color-hover); }

.card {
    background: var(--color-tarjeta);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid var(--color-borde);
    backdrop-filter: blur(10px);
}

textarea {
    width: 100%; height: 150px; margin-top: 10px;
    background: #111; color: white; border: 1px solid #333; border-radius: 8px; padding: 10px;
}

/* LÓGICA DE IMPRESIÓN */
.only-print { display: none; }

@media print {
    .no-print { display: none !important; }
    .only-print { display: block !important; }
    
    body { background: white; color: black; }

    .page-a5 {
        width: 148mm; height: 210mm;
        padding: 15mm;
        page-break-after: always;
        border-bottom: 1px dashed #ccc;
        position: relative;
        color: black;
    }

    .dots-bg {
        background-image: radial-gradient(#ddd 1px, transparent 1px);
        background-size: 5mm 5mm;
        height: 120mm;
        border: 1px solid #eee;
    }

    .planner-a4 {
        width: 210mm; height: 297mm;
        display: grid;
        grid-template-columns: repeat(7, 1fr);
        gap: 2px;
        background: black;
    }
    .planner-day { background: white; height: 40mm; padding: 5px; font-size: 10px; }
}